From af8723c0b17809054852cfde3e978bfededf3947 Mon Sep 17 00:00:00 2001
From: Servo WPT Sync <32481905+servo-wpt-sync@users.noreply.github.com>
Date: Sun, 7 Sep 2025 03:47:40 +0200
Subject: [PATCH] Sync WPT with upstream (07-09-2025) (#39188)

Automated downstream sync of changes from upstream as of 07-09-2025
[no-wpt-sync]

Signed-off-by: WPT Sync Bot <ghbot+wpt-sync@servo.org>
---
 ...transaction-deactivation-timing.any.js.ini |    6 +
 tests/wpt/meta/MANIFEST.json                  | 4510 ++++++++---------
 ...te-font-size-with-margin-override.html.ini |    2 +
 .../layer-cssom-order-reverse.html.ini        |    3 -
 .../revert-rule-basic.tentative.html.ini      |   12 +
 .../revert-rule-layer.tentative.html.ini      |    6 +
 .../css-color/display-p3-linear-001.html.ini  |    2 +
 .../css-color/display-p3-linear-002.html.ini  |    2 +
 .../css-color/display-p3-linear-003.html.ini  |    2 +
 .../css-color/display-p3-linear-004.html.ini  |    2 +
 .../css-color/display-p3-linear-005.html.ini  |    2 +
 .../css-color/display-p3-linear-006.html.ini  |    2 +
 .../color-computed-color-function.html.ini    |  141 +
 ...color-computed-color-mix-function.html.ini |  126 +
 .../color-computed-relative-color.html.ini    |  222 +
 .../color-valid-color-function.html.ini       |  102 +
 .../color-valid-color-mix-function.html.ini   |   84 +
 .../color-valid-relative-color.html.ini       |  210 +
 .../container-name-tree-scoped.html.ini       |    6 +
 .../env-revert-rule.tentative.html.ini        |    3 +
 .../generic-family-keywords-003.html.ini      |    3 -
 .../abspos/column-masonry-alignment.html.ini  |    2 +
 .../column-masonry-out-of-flow-001.html.ini   |    2 +
 .../column-masonry-out-of-flow-002.html.ini   |    2 +
 .../column-masonry-out-of-flow-003.html.ini   |    2 +
 ...ry-positioned-item-dynamic-change.html.ini |    2 +
 .../abspos/row-masonry-alignment.html.ini     |    2 +
 .../row-masonry-out-of-flow-001.html.ini      |    2 +
 .../row-masonry-out-of-flow-002.html.ini      |    2 +
 .../row-masonry-out-of-flow-003.html.ini      |    2 +
 .../css/css-mixins/contents-rule.html.ini     |    3 +
 .../css-mixins/dashed-function-eval.html.ini  |    6 +
 .../nesting-revert-rule.tentative.html.ini    |   12 +
 ...-absolute-fit-content-auto-margin.html.ini |   36 +
 .../before-as-flex-container.html.ini         |    2 +
 .../text-decoration-trim-computed.html.ini    |   30 +
 .../text-decoration-trim-valid.html.ini       |   30 +
 .../text-decoration-trim-001.html.ini         |    2 +
 .../text-decoration-trim-002.html.ini         |    2 +
 .../text-decoration-trim-003.html.ini         |    2 +
 .../text-decoration-trim-004.html.ini         |    2 +
 .../text-decoration-trim-005.html.ini         |    2 +
 .../text-decoration-trim-006.html.ini         |    2 +
 .../text-decoration-trim-007.html.ini         |    2 +
 .../text-decoration-trim-008.html.ini         |    2 +
 .../text-decoration-trim-009.html.ini         |    2 +
 .../text-decoration-trim-010.html.ini         |    2 +
 .../text-decoration-trim-011.html.ini         |    2 +
 .../text-decoration-trim-012.html.ini         |    2 +
 .../text-decoration-trim-013.html.ini         |    2 +
 .../text-decoration-trim-014.html.ini         |    2 +
 .../text-decoration-trim-015.html.ini         |    2 +
 .../text-decoration-trim-016.html.ini         |    2 +
 .../text-indent/below-float3.html.ini         |    2 +
 .../css/css-values/attr-all-types.html.ini    |  104 +-
 .../attr-revert-rule.tentative.html.ini       |    3 +
 ...if-function-revert-rule.tentative.html.ini |    6 +
 ...revert-rule-in-fallback.tentative.html.ini |   12 +
 .../revert-rule-to-var.tentative.html.ini     |    3 +
 ...ences-colorScheme.tentative.https.html.ini |   40 +
 ...ferences-contrast.tentative.https.html.ini |   43 +
 ...ences-reducedData.tentative.https.html.ini |   40 +
 ...ces-reducedMotion.tentative.https.html.ini |   40 +
 ...ducedTransparency.tentative.https.html.ini |   40 +
 .../observable-constructor.any.js.ini         |    6 +
 .../basic.tentative.https.window.js.ini       |   51 +
 .../anchor.tentative.https.window.js.ini      |   51 -
 .../anchor.tentative.window.js.ini            |   21 -
 ...at-as-public.tentative.https.window.js.ini |    9 -
 .../fetch.tentative.https.window.js.ini       |   81 -
 .../fetch.tentative.window.js.ini             |   24 -
 .../iframe.tentative.https.window.js.ini      |   62 -
 .../iframe.tentative.window.js.ini            |   24 -
 ...ested-worker.tentative.https.window.js.ini |    6 -
 .../nested-worker.tentative.window.js.ini     |    6 -
 ...flight-cache.https.tentative.window.js.ini |    9 -
 .../redirect.tentative.https.window.js.ini    |   69 -
 ...ground-fetch.tentative.https.window.js.ini |   27 -
 ...at-as-public.tentative.https.window.js.ini |   19 -
 ...tch-document.tentative.https.window.js.ini |   28 -
 ...worker-fetch.tentative.https.window.js.ini |   49 -
 ...orker-update.tentative.https.window.js.ini |   10 -
 ...rvice-worker.tentative.https.window.js.ini |    9 -
 ...r-blob-fetch.tentative.https.window.js.ini |   46 -
 ...-worker-blob-fetch.tentative.window.js.ini |   46 -
 ...worker-fetch.tentative.https.window.js.ini |   46 -
 ...hared-worker-fetch.tentative.window.js.ini |   40 -
 ...hared-worker.tentative.https.window.js.ini |   10 -
 .../shared-worker.tentative.window.js.ini     |   10 -
 .../websocket.tentative.window.js.ini         |    9 -
 ...ndow-open-existing.tentative.window.js.ini |   21 -
 .../window-open.tentative.https.window.js.ini |  110 -
 .../window-open.tentative.window.js.ini       |   21 -
 .../worker-blob-fetch.tentative.window.js.ini |   39 -
 ...worker-fetch.tentative.https.window.js.ini |   27 -
 .../worker-fetch.tentative.window.js.ini      |   24 -
 .../worker.tentative.window.js.ini            |    6 -
 ...at-as-public.tentative.https.window.js.ini |    9 -
 .../xhr.https.tentative.window.js.ini         |   23 -
 .../xhr.tentative.window.js.ini               |   24 -
 .../navigating-across-documents/009.html.ini  |    3 +
 .../empty-iframe-load-event.html.ini          |    6 -
 ...tion-unload-cross-origin.sub.window.js.ini |    3 +
 .../traverse_the_history_2.html.ini           |    3 +
 .../traverse_the_history_3.html.ini           |    3 +
 .../meta/html/dom/access-key-label.html.ini   |    3 +
 .../autofocus-dialog.html.ini                 |    3 +-
 ...t-height-constrained-by-max-width.html.ini |    2 +
 ...t-width-constrained-by-max-height.html.ini |    2 +
 .../text-plain.window.js.ini                  |    3 -
 .../border-rendering.html.ini                 |    2 +
 .../border-rendering.tentative.html.ini       |    2 -
 .../focus-ring-rendering.html.ini             |    2 +
 .../focus-ring-rendering.tentative.html.ini   |    2 -
 ...entative.html.ini => option-list.html.ini} |    2 +-
 .../picker-and-slotted.tentative.html.ini     |    2 -
 ...elect-appearance-active.tentative.html.ini |    2 -
 ...ppearance-custom-button.tentative.html.ini |    2 -
 ...ct-appearance-dark-mode.tentative.html.ini |    2 -
 ...pearance-default-button.tentative.html.ini |    2 -
 ...earance-disabled-option.tentative.html.ini |    2 -
 .../select-appearance-disabled.html.ini       |    2 +
 ...ect-appearance-disabled.tentative.html.ini |    2 -
 ...ck-bottom-left-scroller.tentative.html.ini |    2 -
 ...ce-fallback-bottom-left.tentative.html.ini |    2 -
 ...k-bottom-right-scroller.tentative.html.ini |    2 -
 ...e-fallback-bottom-right.tentative.html.ini |    2 -
 ...lback-top-left-scroller.tentative.html.ini |    2 -
 ...rance-fallback-top-left.tentative.html.ini |    2 -
 ...back-top-right-scroller.tentative.html.ini |    2 -
 ...ance-fallback-top-right.tentative.html.ini |    2 -
 ...earance-font-inheriting.tentative.html.ini |    2 -
 ...select-appearance-hover.tentative.html.ini |    2 -
 ...tgroup-legend-and-label.tentative.html.ini |    2 -
 ...earance-optgroup-legend.tentative.html.ini |    2 -
 ...ance-optgroup-rendering.tentative.html.ini |    2 -
 ...rance-option-with-label.tentative.html.ini |    2 -
 ...ce-picker-select-border.tentative.html.ini |    2 -
 ...-switching-invalidation.tentative.html.ini |    2 -
 ...riting-mode-vertical-lr.tentative.html.ini |    2 -
 ...riting-mode-vertical-rl.tentative.html.ini |    2 -
 ...e-wrong-picker-argument.tentative.html.ini |    2 -
 .../select-explicit-size.html.ini             |    2 +
 .../select-explicit-size.tentative.html.ini   |    2 -
 .../select-font-size.html.ini                 |    2 +
 .../select-font-size.tentative.html.ini       |    2 -
 .../select-icon-color.html.ini                |    2 +
 .../select-icon-color.tentative.html.ini      |    2 -
 ...lect-only-button-opt-in.tentative.html.ini |    2 -
 ...lect-only-picker-opt-in.tentative.html.ini |    2 -
 ...elect-open-invalidation.tentative.html.ini |    2 -
 .../select-option-images.tentative.html.ini   |    2 -
 ...ve.html.ini => select-options-id.html.ini} |    2 +-
 .../select-parsing.html.ini                   |   24 +
 .../select-parsing.tentative.html.ini         |   48 -
 ...-popover-exit-animation.tentative.html.ini |    2 -
 ...ect-second-child-button.tentative.html.ini |    2 -
 ...selected-value-behavior.tentative.html.ini |    2 -
 .../select-text-only.html.ini                 |    2 +
 .../select-text-only.tentative.html.ini       |    2 -
 ...i => select-value-selectedOption.html.ini} |    2 +-
 .../selectedcontent-color.html.ini            |    2 +
 ...ini => selectedcontent-mutations.html.ini} |    2 +-
 .../idlharness.tentative.html.ini             |    0
 ...terestelement-interface.tentative.html.ini |    0
 ...erestfor-css-properties.tentative.html.ini |    0
 ...erestfor-css-shorthands.tentative.html.ini |    0
 ...eudo-element-appearance.tentative.html.ini |    0
 ...d-cross-origin-referrerpolicy.sub.html.ini |    2 +
 ...dulepreload-inline-referrerpolicy.html.ini |    3 +
 .../modulepreload-referrer-check.html.ini     |    4 +
 .../modulepreload-referrerpolicy.html.ini     |   22 +
 ... => source-attribute-retargeting.html.ini} |    2 +-
 ...-handler-idl-attribute-realm.window.js.ini |    3 +
 .../test-navigation-type-reload.html.ini      |    9 +
 .../meta/preload/preload-error.sub.html.ini   |    1 -
 .../preload-resource-match.https.html.ini     |   35 +-
 .../inline-document-write.html.ini            |    9 +
 .../tentative/stylesheet-initiated.html.ini   |    2 +-
 ...hadow-style-invalidation-vw-units.html.ini |    2 +
 .../trusted-types-navigation.html.ini         |   11 +-
 .../simple-input-output.html.ini              |    3 +
 .../silent-inputs.html.ini                    |    9 +
 .../classic/perform_actions/navigation.py.ini |    2 +
 .../webxr/render_state_update.https.html.ini  |    2 -
 .../Worker/Worker-constructor.html.ini        |    2 -
 .../tests/.github/workflows/safari_stable.yml |    3 +-
 .../workflows/safari_technology_preview.yml   |    3 +-
 .../tests/.well-known/device-bound-sessions   |   23 +-
 ..._from_pseudo_content_marker.tentative.html |  142 +
 .../tests/badging/resources/badge_iframe.html |    5 +
 .../badging/resources/message-handler.js      |   18 +
 .../badging/resources/setAppBadge_iframe.html |   33 -
 .../setAppBadge_cross_origin.sub.https.html   |  160 +-
 .../report-multiple-violations-02.html        |    8 +-
 ...form-submission-blocked-by-sandboxing.html |   26 -
 ...mission-blocked-by-sandboxing.html.headers |    1 -
 ...rc-trusted_types_eval_DedicatedWorker.html |   15 +
 ...uire_trusted_types_eval_DedicatedWorker.js |   28 +
 ...sted_types_eval_DedicatedWorker.js.headers |    2 +
 ...uire_trusted_types_eval_DedicatedWorker.js |   23 +
 ...sted_types_eval_DedicatedWorker.js.headers |    1 +
 ...uire_trusted_types_eval_DedicatedWorker.js |   28 +
 ...sted_types_eval_DedicatedWorker.js.headers |    1 +
 .../text/text-indent-intrinsic-003-ref.xht    |    4 +-
 .../text/text-indent-intrinsic-004-ref.xht    |    4 +-
 .../css-anchor-position/anchor-name-006.html  |   21 +
 .../css-anchor-position/anchor-name-007.html  |   23 +
 .../anchored-child-transition.html            |   43 +
 .../anchored-fallback-basic.html              |   52 +
 .../anchored-fallback-color-change.html       |   60 +
 .../anchored-fallback-display-change.html     |   47 +
 .../anchored-fallback-name.html               |   57 +
 .../anchored-fallback-position-area-wm.html   |   64 +
 .../anchored-fallback-position-area.html      |   49 +
 .../anchored-fallback-scroll.html             |   51 +
 ...chored-fallback-style-containment-ref.html |    4 +
 .../anchored-fallback-style-containment.html  |   13 +
 .../anchored-fallback-try-tactic.html         |   62 +
 .../at-container-anchored-parsing.html        |   23 +
 .../at-container-anchored-serialization.html  |   31 +
 .../container-type-anchored-computed.html     |   13 +
 .../container-type-anchored-parsing.html      |   16 +
 ...essful-change-fallbacks-position-area.html |   59 +
 ...te-font-size-with-margin-override-ref.html |   12 +
 ...nimate-font-size-with-margin-override.html |   18 +
 .../revert-rule-basic.tentative.html          |   76 +
 .../revert-rule-layer.tentative.html          |   51 +
 .../css/css-color/display-p3-linear-001.html  |   15 +
 .../css/css-color/display-p3-linear-002.html  |   16 +
 .../css/css-color/display-p3-linear-003.html  |   19 +
 .../css-color/display-p3-linear-004-ref.html  |   10 +
 .../css/css-color/display-p3-linear-004.html  |   19 +
 .../css/css-color/display-p3-linear-005.html  |   20 +
 .../css/css-color/display-p3-linear-006.html  |   24 +
 .../color-computed-color-function.html        |   22 +-
 .../color-computed-color-mix-function.html    |    2 +-
 .../color-computed-relative-color.html        |    2 +-
 .../color-invalid-color-mix-function.html     |    2 +-
 .../parsing/color-invalid-relative-color.html |    2 +-
 .../parsing/color-valid-color-function.html   |    2 +-
 .../color-valid-color-mix-function.html       |    2 +-
 .../parsing/color-valid-relative-color.html   |    2 +-
 .../container-name-tree-scoped.html           |   14 +-
 .../counter-japanese-formal-extended-ref.html |   19 +-
 ...ounter-japanese-informal-extended-ref.html |   38 +-
 ...ter-korean-hangul-formal-extended-ref.html |   44 +-
 ...nter-korean-hanja-formal-extended-ref.html |   65 +-
 ...er-korean-hanja-informal-extended-ref.html |   72 +-
 .../counter-simp-chinese-formal-ref.html      |   30 +-
 .../counter-simp-chinese-informal-ref.html    |   20 +-
 .../counter-trad-chinese-formal-ref.html      |   22 +-
 .../counter-trad-chinese-informal-ref.html    |   12 +-
 .../css-env/env-revert-rule.tentative.html    |   22 +
 .../grid/grid-gap-decorations-003-ref.html    |   36 +-
 .../grid/grid-gap-decorations-004-ref.html    |   67 +-
 .../grid/grid-gap-decorations-005-ref.html    |   57 +-
 .../abspos/column-masonry-alignment-ref.html  |  144 +
 .../abspos/column-masonry-alignment.html      |  142 +
 ...lumn-masonry-intrinsic-sizing-oof-ref.html |   51 +
 .../column-masonry-intrinsic-sizing-oof.html  |   55 +
 .../column-masonry-out-of-flow-001-ref.html   |   87 +
 .../column-masonry-out-of-flow-001.html       |   86 +
 .../column-masonry-out-of-flow-002-ref.html   |   83 +
 .../column-masonry-out-of-flow-002.html       |   84 +
 .../column-masonry-out-of-flow-003-ref.html   |   68 +
 .../column-masonry-out-of-flow-003.html       |   71 +
 ...ry-positioned-item-dynamic-change-ref.html |   18 +
 ...asonry-positioned-item-dynamic-change.html |   39 +
 .../abspos/row-masonry-alignment-ref.html     |  144 +
 .../abspos/row-masonry-alignment.html         |  143 +
 .../row-masonry-intrinsic-sizing-oof-ref.html |   52 +
 .../row-masonry-intrinsic-sizing-oof.html     |   57 +
 .../row-masonry-out-of-flow-001-ref.html      |   88 +
 .../abspos/row-masonry-out-of-flow-001.html   |   88 +
 .../row-masonry-out-of-flow-002-ref.html      |   84 +
 .../abspos/row-masonry-out-of-flow-002.html   |   86 +
 .../row-masonry-out-of-flow-003-ref.html      |   68 +
 .../abspos/row-masonry-out-of-flow-003.html   |   72 +
 .../clip-path/clip-path-borderBox-1b.html     |    2 +-
 .../clip-path/clip-path-circle-001.html       |    1 +
 .../clip-path/clip-path-circle-002.html       |    1 +
 .../clip-path/clip-path-circle-003.html       |    1 +
 .../clip-path/clip-path-circle-004.html       |    1 +
 .../clip-path/clip-path-circle-005.html       |    1 +
 .../clip-path/clip-path-circle-006.html       |    1 +
 .../clip-path/clip-path-circle-007.html       |    1 +
 .../clip-path/clip-path-circle-008.html       |    1 +
 .../clip-path/clip-path-ellipse-001.html      |    1 +
 .../clip-path/clip-path-ellipse-002.html      |    1 +
 .../clip-path/clip-path-ellipse-003.html      |    1 +
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 .../clip-path/clip-path-ellipse-005.html      |    1 +
 .../clip-path/clip-path-ellipse-006.html      |    1 +
 .../clip-path/clip-path-ellipse-007.html      |    1 +
 .../clip-path/clip-path-ellipse-008.html      |    1 +
 .../tests/css/css-mixins/contents-rule.html   |   16 +-
 .../css/css-mixins/dashed-function-eval.html  |   31 +
 .../css-mixins/function-shadow-container.html |    6 +-
 .../nesting-revert-rule.tentative.html        |   90 +
 ...tion-absolute-fit-content-auto-margin.html |   96 +
 .../before-as-flex-container-ref.html         |   24 +
 .../css-pseudo/before-as-flex-container.html  |   26 +
 .../reference/svg-text-selection-ref.html     |   18 +
 .../svg-text-selection-shadow-ref.html        |   17 +
 .../svg-text-selection-fill-only.html         |   27 +
 .../css-pseudo/svg-text-selection-shadow.html |   26 +
 .../svg-text-selection-stroke-only.html       |   27 +
 ...text-selection-transparent-background.html |   26 +
 .../text-decoration-trim-computed.html        |   32 +
 .../parsing/text-decoration-trim-invalid.html |   20 +
 .../parsing/text-decoration-trim-valid.html   |   21 +
 .../text-decoration-trim-001-ref.html         |   34 +
 .../text-decoration-trim-002-ref.html         |   37 +
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 .../text-decoration-trim-010-notref.html      |   33 +
 .../text-decoration-trim-011-ref.html         |   64 +
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 .../word-spacing/word-spacing-003.html        |   23 +
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 .../revert-rule-to-var.tentative.html         |   25 +
 .../css/css-view-transitions/idlharness.html  |    2 +-
 .../nested/green-rect-ref.html                |   15 +
 ...nested-parent-changes-transform-twice.html |   76 +
 .../nested-parent-changes-transform.html      |   68 +
 .../table-caption-ref.html                    |   16 +
 .../css-view-transitions/table-caption.html   |   43 +
 .../table-caption.html.ini                    |    0
 ...eferences-colorScheme.tentative.https.html |  115 +
 .../preferences-contrast.tentative.https.html |  131 +
 ...eferences-reducedData.tentative.https.html |  115 +
 ...erences-reducedMotion.tentative.https.html |  115 +
 ...s-reducedTransparency.tentative.https.html |  115 +
 .../resources/preferences-helper.js           |   12 +
 .../federated-session.https.html              |  139 +
 .../get_key.py                                |   10 +
 .../get_session_ids.py                        |    9 +
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 .../largeop-displayoperatorminheight1250.woff |  Bin 0 -> 1308 bytes
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 .../wpt/tests/html/dom/access-key-label.html  |   27 +
 ...bject-height-constrained-by-max-width.html |   22 +
 ...bject-width-constrained-by-max-height.html |   22 +
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 ...n-list.tentative.html => option-list.html} |    0
 ...tentative.html => picker-and-slotted.html} |    0
 .../resources/customizable-select-styles.css  |    4 +-
 .../resources/customizable-select-utils.js    |    9 -
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 ...ive.html => select-appearance-active.html} |    0
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 ... select-appearance-button-after-span.html} |    0
 ... select-appearance-button-after-text.html} |    0
 ...l => select-appearance-custom-button.html} |    0
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 ... => select-appearance-default-button.html} |    0
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 ...e.html => select-appearance-disabled.html} |    0
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 ...ect-appearance-fallback-bottom-right.html} |    0
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 ... select-appearance-fallback-top-left.html} |    0
 ...pearance-fallback-top-right-scroller.html} |    0
 ...select-appearance-fallback-top-right.html} |    0
 ...=> select-appearance-font-inheriting.html} |    0
 ...tive.html => select-appearance-hover.html} |    0
 ...appearance-optgroup-legend-and-label.html} |    0
 ...=> select-appearance-optgroup-legend.html} |    0
 ...select-appearance-optgroup-rendering.html} |    0
 ... select-appearance-option-with-label.html} |    0
 ...lect-appearance-picker-select-border.html} |    0
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 ...ct-appearance-switching-invalidation.html} |    0
 ...-appearance-writing-mode-vertical-lr.html} |    0
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 ...tive.html => select-button-behaviors.html} |    0
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 ...=> select-dialog-mode-focus.optional.html} |    4 +
 ...ed.tentative.html => select-disabled.html} |    0
 ...ive.html => select-events-2.optional.html} |    3 +
 ...ative.html => select-events.optional.html} |    3 +
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 ...ntative.html => select-explicit-size.html} |    2 +-
 ...l => select-focus-visible-with-mouse.html} |    0
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 ...ing.tentative.html => select-parsing.html} |    0
 ...ive.html => select-picker-animations.html} |    0
 ...html => select-picker-exit-animation.html} |    0
 ...=> select-picker-hover-active-pseudo.html} |    0
 ...r-interactive-element-focus.optional.html} |    3 +
 ...html => select-picker-starting-style.html} |    0
 ...tml => select-popover-exit-animation.html} |    0
 ...tentative.html => select-pseudo-open.html} |    0
 ...e.html => select-second-child-button.html} |    0
 ... => select-size-multiple-new-content.html} |    0
 ...tive.html => select-synthetic-events.html} |    0
 ...y.tentative.html => select-text-only.html} |    0
 .../select-type-to-search.tentative.html      |    7 +-
 ....html => select-value-selectedOption.html} |    0
 ...ef.html => selectedcontent-color-ref.html} |    0
 ...tative.html => selectedcontent-color.html} |    2 +-
 ...ve.html => selectedcontent-mutations.html} |    0
 ...tive.html => selectedcontent-restore.html} |    0
 ...nt.tentative.html => selectedcontent.html} |    0
 ...ive.html => switch-picker-appearance.html} |    0
 .../idlharness.tentative.html                 |    0
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 ...terestevent-dispatch-shadow.tentative.html |    0
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 .../module/modulepreload-referrer-check.html  |   49 +
 .../module/modulepreload-referrerpolicy.html  |  200 +
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 ...vent-handler-idl-attribute-realm.window.js |   59 +
 .../interfaces/css-view-transitions-2.idl     |   29 -
 .../tests/interfaces/css-view-transitions.idl |   26 +-
 ...rk-access.idl => local-network-access.idl} |    9 +-
 .../wpt/tests/interfaces/web-animations-2.idl |   33 +-
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 tests/wpt/tests/interfaces/webcrypto.idl      |    4 -
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 ...tml => timeline-trigger-name-parsing.html} |    0
 ...d-left-with-selecting-editable-select.html |   25 +
 .../tentative/interestfor.tentative.html      |    2 +-
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 .../svg/fonts/font-size-adjust-scale-text.svg |   24 +
 .../linking/scripted/a.hreflang-getter-01.svg |   20 +
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 ...t-attr-selector-transition.tentative.html} |    1 +
 ...-class-selector-transition.tentative.html} |    1 +
 ...ent-id-selector-transition.tentative.html} |    1 +
 ...t-transitions-dom-mutation.tentative.html} |    1 +
 ...=> use-element-transitions.tentative.html} |    1 +
 .../tests/tools/ci/check_for_updated_refs.py  |   28 +-
 tests/wpt/tests/tools/ci/epochs_update.sh     |    6 +-
 .../ci/tests/test_check_for_updated_refs.py   |  259 +-
 tests/wpt/tests/tools/wpt/browser.py          |  403 +-
 tests/wpt/tests/tools/wpt/utils.py            |    2 +-
 .../event-trigger-alternate.tentative.html    |   61 +
 ...ent-trigger-before-handlers.tentative.html |   50 +
 .../event-trigger-once.tentative.html         |   49 +
 .../event-trigger-repeat.tentative.html       |   61 +
 .../event-trigger-state.tentative.html        |   49 +
 .../audiosource-onended.html                  |  107 +-
 .../simple-input-output.html                  |  154 +-
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 .../browsing_context/navigate/__init__.py     |   11 +-
 .../browsing_context/navigate/navigate.py     |   19 +-
 .../tests/classic/set_window_rect/set.py      |    8 +-
 .../tests/webdriver/tests/support/inline.py   |    2 +-
 .../webnn/conformance_tests/abs.https.any.js  |   10 +-
 .../webnn/conformance_tests/add.https.any.js  |    8 +-
 .../arg_min_max.https.any.js                  |    9 +-
 .../averagePool2d.https.any.js                |    9 +-
 .../batch_normalization.https.any.js          |    9 +-
 .../webnn/conformance_tests/cast.https.any.js |   10 +-
 .../webnn/conformance_tests/ceil.https.any.js |   10 +-
 .../conformance_tests/clamp.https.any.js      |    8 +-
 .../conformance_tests/concat.https.any.js     |    8 +-
 ...constant-reshape-optimization.https.any.js |   10 +-
 .../conformance_tests/conv2d.https.any.js     |    9 +-
 .../conv_transpose2d.https.any.js             |    9 +-
 .../webnn/conformance_tests/cos.https.any.js  |   10 +-
 .../cumulative_sum.https.any.js               |   11 +-
 .../dequantizeLinear.https.any.js             |   11 +-
 .../webnn/conformance_tests/div.https.any.js  |   10 +-
 .../webnn/conformance_tests/elu.https.any.js  |    8 +-
 .../conformance_tests/equal.https.any.js      |    8 +-
 .../webnn/conformance_tests/erf.https.any.js  |   10 +-
 .../webnn/conformance_tests/exp.https.any.js  |   10 +-
 .../conformance_tests/expand.https.any.js     |    8 +-
 .../conformance_tests/floor.https.any.js      |   10 +-
 .../conformance_tests/gather.https.any.js     |    8 +-
 .../gatherElements.https.any.js               |    9 +-
 .../conformance_tests/gatherND.https.any.js   |    9 +-
 .../webnn/conformance_tests/gelu.https.any.js |    8 +-
 .../webnn/conformance_tests/gemm.https.any.js |    8 +-
 .../conformance_tests/greater.https.any.js    |    8 +-
 .../greater_or_equal.https.any.js             |    9 +-
 .../webnn/conformance_tests/gru.https.any.js  |   11 +-
 .../conformance_tests/gru_cell.https.any.js   |   10 +-
 .../hard_sigmoid.https.any.js                 |    9 +-
 .../conformance_tests/hard_swish.https.any.js |    9 +-
 .../conformance_tests/identity.https.any.js   |    9 +-
 .../instance_normalization.https.any.js       |   10 +-
 .../is_infinite.https.any.js                  |   11 +-
 .../conformance_tests/is_nan.https.any.js     |   10 +-
 .../conformance_tests/l2Pool2d.https.any.js   |    9 +-
 .../layer_normalization.https.any.js          |   10 +-
 .../conformance_tests/leaky_relu.https.any.js |    9 +-
 .../conformance_tests/lesser.https.any.js     |    8 +-
 .../lesser_or_equal.https.any.js              |    9 +-
 .../conformance_tests/linear.https.any.js     |    9 +-
 .../webnn/conformance_tests/log.https.any.js  |   10 +-
 .../logical_and.https.any.js                  |    9 +-
 .../logical_not.https.any.js                  |    9 +-
 .../conformance_tests/logical_or.https.any.js |    9 +-
 .../logical_xor.https.any.js                  |    9 +-
 .../webnn/conformance_tests/lstm.https.any.js |   10 +-
 .../conformance_tests/lstm_cell.https.any.js  |   10 +-
 .../conformance_tests/matmul.https.any.js     |   10 +-
 .../webnn/conformance_tests/max.https.any.js  |    8 +-
 .../conformance_tests/maxPool2d.https.any.js  |    9 +-
 .../webnn/conformance_tests/min.https.any.js  |    8 +-
 .../conformance_tests/mlNumber.https.any.js   |   10 +-
 .../webnn/conformance_tests/mul.https.any.js  |    8 +-
 .../webnn/conformance_tests/neg.https.any.js  |   10 +-
 .../conformance_tests/not_equal.https.any.js  |    9 +-
 .../webnn/conformance_tests/pad.https.any.js  |    8 +-
 .../webnn/conformance_tests/pow.https.any.js  |   10 +-
 .../conformance_tests/prelu.https.any.js      |    8 +-
 .../qdq_subgraph.https.any.js                 |    9 +-
 .../quantizeLinear.https.any.js               |   11 +-
 .../conformance_tests/reciprocal.https.any.js |   10 +-
 .../conformance_tests/reduce_l1.https.any.js  |    9 +-
 .../conformance_tests/reduce_l2.https.any.js  |    9 +-
 .../reduce_log_sum.https.any.js               |    9 +-
 .../reduce_log_sum_exp.https.any.js           |    9 +-
 .../conformance_tests/reduce_max.https.any.js |    9 +-
 .../reduce_mean.https.any.js                  |    9 +-
 .../conformance_tests/reduce_min.https.any.js |    9 +-
 .../reduce_product.https.any.js               |    9 +-
 .../conformance_tests/reduce_sum.https.any.js |    9 +-
 .../reduce_sum_square.https.any.js            |    9 +-
 .../webnn/conformance_tests/relu.https.any.js |    8 +-
 .../conformance_tests/resample2d.https.any.js |    9 +-
 .../conformance_tests/reshape.https.any.js    |    8 +-
 .../conformance_tests/reverse.https.any.js    |    8 +-
 .../conformance_tests/round_even.https.any.js |   10 +-
 .../scatterElements.https.any.js              |    9 +-
 .../conformance_tests/scatterND.https.any.js  |    9 +-
 .../conformance_tests/sigmoid.https.any.js    |    9 +-
 .../webnn/conformance_tests/sign.https.any.js |   10 +-
 .../webnn/conformance_tests/sin.https.any.js  |   10 +-
 .../conformance_tests/slice.https.any.js      |    8 +-
 .../conformance_tests/softmax.https.any.js    |    9 +-
 .../conformance_tests/softplus.https.any.js   |    9 +-
 .../conformance_tests/softsign.https.any.js   |    9 +-
 .../conformance_tests/split.https.any.js      |    8 +-
 .../webnn/conformance_tests/sqrt.https.any.js |   10 +-
 .../webnn/conformance_tests/sub.https.any.js  |    8 +-
 .../conformance_tests/subgraph.https.any.js   |    9 +-
 .../webnn/conformance_tests/tan.https.any.js  |   10 +-
 .../webnn/conformance_tests/tanh.https.any.js |    8 +-
 .../webnn/conformance_tests/tile.https.any.js |    8 +-
 .../conformance_tests/transpose.https.any.js  |    9 +-
 .../conformance_tests/triangular.https.any.js |   10 +-
 .../conformance_tests/where.https.any.js      |   10 +-
 tests/wpt/tests/webnn/resources/utils.js      |  104 +-
 .../webrtc/rtp-stats-lifetime.https.html      |   46 +
 .../evil/media_height_19-ref.html             |    2 +
 743 files changed, 13580 insertions(+), 12062 deletions(-)
 create mode 100644 tests/wpt/meta/css/css-animations/animate-font-size-with-margin-override.html.ini
 delete mode 100644 tests/wpt/meta/css/css-cascade/layer-cssom-order-reverse.html.ini
 create mode 100644 tests/wpt/meta/css/css-cascade/revert-rule-basic.tentative.html.ini
 create mode 100644 tests/wpt/meta/css/css-cascade/revert-rule-layer.tentative.html.ini
 create mode 100644 tests/wpt/meta/css/css-color/display-p3-linear-001.html.ini
 create mode 100644 tests/wpt/meta/css/css-color/display-p3-linear-002.html.ini
 create mode 100644 tests/wpt/meta/css/css-color/display-p3-linear-003.html.ini
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 rename tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/{select-explicit-size-ref.tentative.html => select-explicit-size-ref.html} (100%)
 rename tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/{select-explicit-size.tentative.html => select-explicit-size.html} (80%)
 rename tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/{select-focus-visible-with-mouse.tentative.html => select-focus-visible-with-mouse.html} (100%)
 rename tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/{select-font-size-ref.tentative.html => select-font-size-ref.html} (100%)
 rename tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/{select-font-size.tentative.html => select-font-size.html} (85%)
 rename tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/{select-home-end-pagedown-pageup.tentative.html => select-home-end-pagedown-pageup.optional.html} (93%)
 rename tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/{select-icon-color.tentative.html => select-icon-color.html} (100%)
 rename tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/{select-initial-focus-display-animation.tentative.html => select-initial-focus-display-animation.html} (100%)
 rename tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/{select-innertext.tentative.html => select-innertext.html} (100%)
 rename tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/{select-inside-top-layer.tentative.html => select-inside-top-layer.html} (100%)
 rename tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/{select-iterate-before-beginning.tentative.html => select-iterate-before-beginning.optional.html} (95%)
 rename tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/{select-keyboard-behavior.tentative.html => select-keyboard-behavior.optional.html} (98%)
 rename tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/{select-keyboard-focus-change-for-hidden-options.tentative.html => select-keyboard-focus-change-for-hidden-options.optional.html} (94%)
 rename tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/{select-mouse-behavior.tentative.html => select-mouse-behavior.html} (100%)
 rename tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/{select-only-button-opt-in.tentative.html => select-only-button-opt-in.html} (100%)
 rename tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/{select-only-picker-opt-in.tentative.html => select-only-picker-opt-in.html} (100%)
 rename tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/{select-open-invalidation.tentative.html => select-open-invalidation.html} (100%)
 rename tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/{select-optgroup-arrow-keys.tentative.html => select-optgroup-arrow-keys.optional.html} (93%)
 rename tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/{select-option-arrow-scroll.tentative.html => select-option-arrow-scroll.optional.html} (92%)
 rename tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/{select-option-hover-styles.tentative.html => select-option-hover-styles.html} (100%)
 rename tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/{select-option-images.tentative.html => select-option-images.html} (100%)
 rename tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/{select-datalist-options-idl.tentative.html => select-options-id.html} (100%)
 rename tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/{select-parsing.tentative.html => select-parsing.html} (100%)
 rename tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/{select-fallback-datalist-animations.tentative.html => select-picker-animations.html} (100%)
 rename tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/{select-picker-exit-animation.tentative.html => select-picker-exit-animation.html} (100%)
 rename tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/{select-picker-hover-active-pseudo.tentative.html => select-picker-hover-active-pseudo.html} (100%)
 rename tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/{select-picker-interactive-element-focus.tentative.html => select-picker-interactive-element-focus.optional.html} (91%)
 rename tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/{select-picker-starting-style.tentative.html => select-picker-starting-style.html} (100%)
 rename tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/{select-popover-exit-animation.tentative.html => select-popover-exit-animation.html} (100%)
 rename tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/{select-pseudo-open.tentative.html => select-pseudo-open.html} (100%)
 rename tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/{select-second-child-button.tentative.html => select-second-child-button.html} (100%)
 rename tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/{select-size-multiple-new-content.tentative.html => select-size-multiple-new-content.html} (100%)
 rename tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/{select-synthetic-events.tentative.html => select-synthetic-events.html} (100%)
 rename tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/{select-text-only.tentative.html => select-text-only.html} (100%)
 rename tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/{select-value-selectedOption.tentative.html => select-value-selectedOption.html} (100%)
 rename tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/{select-selected-value-behavior-ref.html => selectedcontent-color-ref.html} (100%)
 rename tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/{select-selected-value-behavior.tentative.html => selectedcontent-color.html} (84%)
 rename tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/{selectedcontent-mutations.tentative.html => selectedcontent-mutations.html} (100%)
 rename tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/{selectedcontent-restore.tentative.html => selectedcontent-restore.html} (100%)
 rename tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/{selectedcontent.tentative.html => selectedcontent.html} (100%)
 rename tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/{switch-picker-appearance.tentative.html => switch-picker-appearance.html} (100%)
 rename tests/wpt/tests/html/semantics/{the-button-element/interest-for => interestfor}/idlharness.tentative.html (100%)
 rename tests/wpt/tests/html/semantics/{the-button-element/interest-for => interestfor}/interestelement-interface.tentative.html (100%)
 rename tests/wpt/tests/html/semantics/{the-button-element/interest-for => interestfor}/interestevent-dispatch-shadow.tentative.html (100%)
 rename tests/wpt/tests/html/semantics/{the-button-element/interest-for => interestfor}/interestevent-interface.tentative.html (100%)
 rename tests/wpt/tests/html/semantics/{the-button-element/interest-for => interestfor}/interestfor-anchor-event-dispatch.tentative.html (100%)
 rename tests/wpt/tests/html/semantics/{the-button-element/interest-for => interestfor}/interestfor-area-event-dispatch.tentative.html (100%)
 rename tests/wpt/tests/html/semantics/{the-button-element/interest-for => interestfor}/interestfor-basic-delays.tentative.html (100%)
 rename tests/wpt/tests/html/semantics/{the-button-element/interest-for => interestfor}/interestfor-button-event-dispatch.tentative.html (100%)
 rename tests/wpt/tests/html/semantics/{the-button-element/interest-for => interestfor}/interestfor-command-invoker.tentative.html (100%)
 rename tests/wpt/tests/html/semantics/{the-button-element/interest-for => interestfor}/interestfor-css-properties.tentative.html (100%)
 rename tests/wpt/tests/html/semantics/{the-button-element/interest-for => interestfor}/interestfor-css-shorthands.tentative.html (100%)
 rename tests/wpt/tests/html/semantics/{the-button-element/interest-for => interestfor}/interestfor-event-timing.tentative.html (100%)
 rename tests/wpt/tests/html/semantics/{the-button-element/interest-for => interestfor}/interestfor-hide-delay.tentative.html (100%)
 rename tests/wpt/tests/html/semantics/{the-button-element/interest-for => interestfor}/interestfor-implicit-anchor.tentative.html (100%)
 rename tests/wpt/tests/html/semantics/{the-button-element/interest-for => interestfor}/interestfor-input-modalities.tentative.html (98%)
 rename tests/wpt/tests/html/semantics/{the-button-element/interest-for => interestfor}/interestfor-invoker-descendants.tentative.html (100%)
 rename tests/wpt/tests/html/semantics/{the-button-element/interest-for => interestfor}/interestfor-keyboard-behavior.tentative.html (69%)
 rename tests/wpt/tests/html/semantics/{the-button-element/interest-for => interestfor}/interestfor-keyboard-invalidation-ref.html (100%)
 rename tests/wpt/tests/html/semantics/{the-button-element/interest-for => interestfor}/interestfor-keyboard-invalidation.tentative.html (100%)
 rename tests/wpt/tests/html/semantics/{the-button-element/interest-for => interestfor}/interestfor-on-popover-behavior.tentative.html (100%)
 rename tests/wpt/tests/html/semantics/{the-button-element/interest-for => interestfor}/interestfor-plain-inline-element.tentative.html (93%)
 rename tests/wpt/tests/html/semantics/{the-button-element/interest-for => interestfor}/interestfor-pseudo-classes.tentative.html (100%)
 rename tests/wpt/tests/html/semantics/{the-button-element/interest-for => interestfor}/interestfor-pseudo-element-appearance-ref.html (100%)
 rename tests/wpt/tests/html/semantics/{the-button-element/interest-for => interestfor}/interestfor-pseudo-element-appearance.tentative.html (100%)
 rename tests/wpt/tests/html/semantics/{the-button-element/interest-for => interestfor}/interestfor-pseudo-element.tentative.html (100%)
 rename tests/wpt/tests/html/semantics/{the-button-element/interest-for => interestfor}/interestfor-show-delay.tentative.html (100%)
 rename tests/wpt/tests/html/semantics/{the-button-element/interest-for => interestfor}/interestfor-svg-a-event-dispatch.tentative.html (100%)
 rename tests/wpt/tests/html/semantics/{the-button-element/interest-for => interestfor}/interestfor-user-select.tentative.html (100%)
 rename tests/wpt/tests/html/semantics/{the-button-element/interest-for => interestfor}/resources/invoker-utils.js (100%)
 create mode 100644 tests/wpt/tests/html/semantics/popovers/popover-focus-5.html
 create mode 100644 tests/wpt/tests/html/semantics/scripting-1/the-script-element/module/modulepreload-cross-origin-referrerpolicy.sub.html
 create mode 100644 tests/wpt/tests/html/semantics/scripting-1/the-script-element/module/modulepreload-inline-referrerpolicy.html
 create mode 100644 tests/wpt/tests/html/semantics/scripting-1/the-script-element/module/modulepreload-referrer-check.html
 create mode 100644 tests/wpt/tests/html/semantics/scripting-1/the-script-element/module/modulepreload-referrerpolicy.html
 rename tests/wpt/tests/html/semantics/the-button-element/command-and-commandfor/{source-attribute-retargeting.tentative.html => source-attribute-retargeting.html} (100%)
 create mode 100644 tests/wpt/tests/html/webappapis/scripting/events/event-handler-idl-attribute-realm.window.js
 delete mode 100644 tests/wpt/tests/interfaces/css-view-transitions-2.idl
 rename tests/wpt/tests/interfaces/{private-network-access.idl => local-network-access.idl} (55%)
 create mode 100644 tests/wpt/tests/interfaces/webcrypto-modern-algos.idl
 create mode 100644 tests/wpt/tests/mathml/presentation-markup/operators/display-operator-min-height-default-font.html
 create mode 100644 tests/wpt/tests/mathml/presentation-markup/operators/display-operator-min-height-no-workaround.html
 create mode 100644 tests/wpt/tests/resource-timing/tentative/initiator-url/inline-document-write.html
 delete mode 100644 tests/wpt/tests/route/crashtests/routemap-src.html
 rename tests/wpt/tests/scroll-animations/animation-trigger/parsing/{animation-trigger-name-parsing.html => timeline-trigger-name-parsing.html} (100%)
 create mode 100644 tests/wpt/tests/selection/crashtests/selection-modify-word-left-with-selecting-editable-select.html
 create mode 100644 tests/wpt/tests/svg/fonts/font-size-adjust-scale-text-ref.svg
 create mode 100644 tests/wpt/tests/svg/fonts/font-size-adjust-scale-text.svg
 create mode 100644 tests/wpt/tests/svg/linking/scripted/a.hreflang-getter-01.svg
 create mode 100644 tests/wpt/tests/svg/linking/scripted/a.hreflang-setter-01.svg
 create mode 100644 tests/wpt/tests/svg/painting/reftests/text-shadow-01.html
 create mode 100644 tests/wpt/tests/svg/painting/reftests/text-shadow-02.html
 create mode 100644 tests/wpt/tests/svg/painting/reftests/text-shadow-03.html
 create mode 100644 tests/wpt/tests/svg/painting/reftests/text-shadow-ref.html
 rename tests/wpt/tests/svg/styling/{use-element-attr-selector-transition.html => use-element-attr-selector-transition.tentative.html} (91%)
 rename tests/wpt/tests/svg/styling/{use-element-class-selector-transition.html => use-element-class-selector-transition.tentative.html} (91%)
 rename tests/wpt/tests/svg/styling/{use-element-id-selector-transition.html => use-element-id-selector-transition.tentative.html} (92%)
 rename tests/wpt/tests/svg/styling/{use-element-transitions-dom-mutation.html => use-element-transitions-dom-mutation.tentative.html} (92%)
 rename tests/wpt/tests/svg/styling/{use-element-transitions.html => use-element-transitions.tentative.html} (91%)
 create mode 100644 tests/wpt/tests/web-animations/animation-trigger/event-trigger-alternate.tentative.html
 create mode 100644 tests/wpt/tests/web-animations/animation-trigger/event-trigger-before-handlers.tentative.html
 create mode 100644 tests/wpt/tests/web-animations/animation-trigger/event-trigger-once.tentative.html
 create mode 100644 tests/wpt/tests/web-animations/animation-trigger/event-trigger-repeat.tentative.html
 create mode 100644 tests/wpt/tests/web-animations/animation-trigger/event-trigger-state.tentative.html

diff --git a/tests/wpt/meta/IndexedDB/transaction-deactivation-timing.any.js.ini b/tests/wpt/meta/IndexedDB/transaction-deactivation-timing.any.js.ini
index 3bb3235f4b5..7e35d96fb64 100644
--- a/tests/wpt/meta/IndexedDB/transaction-deactivation-timing.any.js.ini
+++ b/tests/wpt/meta/IndexedDB/transaction-deactivation-timing.any.js.ini
@@ -16,6 +16,12 @@
   [Deactivation of new transactions happens at end of invocation]
     expected: FAIL
 
+  [New transactions are deactivated before next task]
+    expected: FAIL
+
+  [New transactions from microtask are deactivated before next task]
+    expected: FAIL
+
 
 [transaction-deactivation-timing.any.sharedworker.html]
   expected: ERROR
diff --git a/tests/wpt/meta/MANIFEST.json b/tests/wpt/meta/MANIFEST.json
index 1edd12daeed..bc5552f1cb4 100644
--- a/tests/wpt/meta/MANIFEST.json
+++ b/tests/wpt/meta/MANIFEST.json
@@ -7058,6 +7058,13 @@
        {}
       ]
      ],
+     "collapse-selection-into-textarea-and-createLink.html": [
+      "f3f0a85a5d90b394c0db7f2df159686c7ebfdef0",
+      [
+       null,
+       {}
+      ]
+     ],
      "contenteditable-will-be-blurred-by-focus-event-listener.html": [
       "a887b1de90e63e0da24a3872b32727282690b896",
       [
@@ -8342,6 +8349,13 @@
          null,
          {}
         ]
+       ],
+       "video-inline-size-containment-no-crash.html": [
+        "3b9cf130bba0e02e467473e33ab84404beae8005",
+        [
+         null,
+         {}
+        ]
        ]
       }
      },
@@ -10077,17 +10091,6 @@
      ]
     ]
    },
-   "route": {
-    "crashtests": {
-     "routemap-src.html": [
-      "d242ee795ae80df5129bbf4d07d8ab3cd18847d4",
-      [
-       null,
-       {}
-      ]
-     ]
-    }
-   },
    "scroll-animations": {
     "crashtests": {
      "clip-path-with-view-timeline.html": [
@@ -10245,6 +10248,13 @@
        {}
       ]
      ],
+     "selection-modify-word-left-with-selecting-editable-select.html": [
+      "a37e31aa1d252a185fe5a20df3643f569577bc6c",
+      [
+       null,
+       {}
+      ]
+     ],
      "table.html": [
       "36eb803a5cbbe6b397ebb76659d1da7a8ae5d881",
       [
@@ -126683,6 +126693,32 @@
        {}
       ]
      ],
+     "anchor-name-006.html": [
+      "1ad784c3c87cc073b4f6711960815e5d45950cbc",
+      [
+       null,
+       [
+        [
+         "/css/reference/ref-filled-green-100px-square.xht",
+         "=="
+        ]
+       ],
+       {}
+      ]
+     ],
+     "anchor-name-007.html": [
+      "27b7432b1af901b21097f8b047ad14b1a6a457fa",
+      [
+       null,
+       [
+        [
+         "/css/reference/ref-filled-green-100px-square.xht",
+         "=="
+        ]
+       ],
+       {}
+      ]
+     ],
      "anchor-position-circular.html": [
       "a0147ecc528646d4e74c25a428367cbea9fefbd6",
       [
@@ -127258,6 +127294,34 @@
        {}
       ]
      ],
+     "container-queries": {
+      "anchored-fallback-color-change.html": [
+       "5437e3b9a283b29e594c3516dcf282a5100c7106",
+       [
+        null,
+        [
+         [
+          "/css/reference/ref-filled-green-100px-square-only.html",
+          "=="
+         ]
+        ],
+        {}
+       ]
+      ],
+      "anchored-fallback-style-containment.html": [
+       "14a16cc53b703d9bfc1f8eededd3e73a27823f14",
+       [
+        null,
+        [
+         [
+          "/css/css-anchor-position/container-queries/anchored-fallback-style-containment-ref.html",
+          "=="
+         ]
+        ],
+        {}
+       ]
+      ]
+     },
      "inherit-height-from-fallback.html": [
       "a1179c62ed04d671e9fdb5c43a270d066a13da38",
       [
@@ -127975,6 +128039,19 @@
      ]
     },
     "css-animations": {
+     "animate-font-size-with-margin-override.html": [
+      "730f10c530dc58dde9f401fdef7d7f8e9378fc3e",
+      [
+       null,
+       [
+        [
+         "/css/css-animations/animate-font-size-with-margin-override-ref.html",
+         "=="
+        ]
+       ],
+       {}
+      ]
+     ],
      "animate-with-background-color-oklch-001.html": [
       "37d10e07cdb467aee54d5826ce2a1604417829f8",
       [
@@ -154156,6 +154233,84 @@
        {}
       ]
      ],
+     "display-p3-linear-001.html": [
+      "4ae7149ed6e6d93d922fbb6d3619eab8878a2d8f",
+      [
+       null,
+       [
+        [
+         "/css/css-color/greensquare-ref.html",
+         "=="
+        ]
+       ],
+       {}
+      ]
+     ],
+     "display-p3-linear-002.html": [
+      "982550f8743afd8a5d217b309311fa983a2dd59d",
+      [
+       null,
+       [
+        [
+         "/css/css-color/blacksquare-ref.html",
+         "=="
+        ]
+       ],
+       {}
+      ]
+     ],
+     "display-p3-linear-003.html": [
+      "222e51e291c11f214bb5d3847c56a2aacd618461",
+      [
+       null,
+       [
+        [
+         "/css/css-color/whitesquare-ref.html",
+         "=="
+        ]
+       ],
+       {}
+      ]
+     ],
+     "display-p3-linear-004.html": [
+      "395e24be3b0fa95144c3186b0637963da93c1146",
+      [
+       null,
+       [
+        [
+         "/css/css-color/display-p3-linear-004-ref.html",
+         "=="
+        ]
+       ],
+       {}
+      ]
+     ],
+     "display-p3-linear-005.html": [
+      "1456c7c8395c0d505b3f52284d4f5359ae1647ab",
+      [
+       null,
+       [
+        [
+         "/css/css-color/yellowsquare-ref.html",
+         "=="
+        ]
+       ],
+       {}
+      ]
+     ],
+     "display-p3-linear-006.html": [
+      "8a3ea45d1876544481febd1d4cfea44e896f48cf",
+      [
+       null,
+       [
+        [
+         "/css/css-color/mossgreensquare-ref.html",
+         "=="
+        ]
+       ],
+       {}
+      ]
+     ],
      "filters-under-will-change-opacity.html": [
       "feb5355f8bcdc76502b554858df782632a7a319f",
       [
@@ -198005,6 +198160,151 @@
      },
      "masonry": {
       "tentative": {
+       "abspos": {
+        "column-masonry-alignment.html": [
+         "1baa113856c0d39ff44cd98a017bceb8eb768731",
+         [
+          null,
+          [
+           [
+            "/css/css-grid/masonry/tentative/abspos/column-masonry-alignment-ref.html",
+            "=="
+           ]
+          ],
+          {}
+         ]
+        ],
+        "column-masonry-intrinsic-sizing-oof.html": [
+         "b0be4bff0aedc2e19847f8924cc5f68026645910",
+         [
+          null,
+          [
+           [
+            "/css/css-grid/masonry/tentative/abspos/column-masonry-intrinsic-sizing-oof-ref.html",
+            "=="
+           ]
+          ],
+          {}
+         ]
+        ],
+        "column-masonry-out-of-flow-001.html": [
+         "3eb9b27937f51e5142fbb69191794a28b74810cc",
+         [
+          null,
+          [
+           [
+            "/css/css-grid/masonry/tentative/abspos/column-masonry-out-of-flow-001-ref.html",
+            "=="
+           ]
+          ],
+          {}
+         ]
+        ],
+        "column-masonry-out-of-flow-002.html": [
+         "c24b64dc555d23cf0bd2bf45be709d2a46bf9e47",
+         [
+          null,
+          [
+           [
+            "/css/css-grid/masonry/tentative/abspos/column-masonry-out-of-flow-002-ref.html",
+            "=="
+           ]
+          ],
+          {}
+         ]
+        ],
+        "column-masonry-out-of-flow-003.html": [
+         "7dcd5f8eca0c9b7c1fe081fb56f9312159c3f55c",
+         [
+          null,
+          [
+           [
+            "/css/css-grid/masonry/tentative/abspos/column-masonry-out-of-flow-003-ref.html",
+            "=="
+           ]
+          ],
+          {}
+         ]
+        ],
+        "column-masonry-positioned-item-dynamic-change.html": [
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      "reverse.https.any.js": [
-      "9d6fccad266f5497e07ed73abba0df631bd84bc9",
+      "3401c0b3ff397522552eb2f99ed1dcb8c59d99b5",
       [
        "webnn/conformance_tests/reverse.https.any.html?cpu",
        {
@@ -877767,7 +877579,7 @@
       ]
      ],
      "round_even.https.any.js": [
-      "e054d2ea4f55785c86aab84bc04b1a91e74d7dbd",
+      "2ed34564f3d2c3edac7643ea0940ee8663269e58",
       [
        "webnn/conformance_tests/round_even.https.any.html?cpu",
        {
@@ -878313,7 +878125,7 @@
       ]
      ],
      "scatterElements.https.any.js": [
-      "a388ad13b99ab4532d46e059a488216421cf6147",
+      "3bc6662c0c3636d17bd310ab430354ff31209ebc",
       [
        "webnn/conformance_tests/scatterElements.https.any.html?cpu",
        {
@@ -878424,7 +878236,7 @@
       ]
      ],
      "scatterND.https.any.js": [
-      "919639bc028c7ccf60ddca7dcb23bb7b102a9868",
+      "1384e28c77b0d988aaeae58bb52fddf2765dc678",
       [
        "webnn/conformance_tests/scatterND.https.any.html?cpu",
        {
@@ -878898,7 +878710,7 @@
       ]
      ],
      "sigmoid.https.any.js": [
-      "a8a310e141e60b2398b7d983f406ab30d4158456",
+      "17b29e879477444b5c39cb42c7d908fe6eb66647",
       [
        "webnn/conformance_tests/sigmoid.https.any.html?cpu",
        {
@@ -879009,7 +878821,7 @@
       ]
      ],
      "sign.https.any.js": [
-      "d61ce38dedbef5b80457d400e98052e66038db28",
+      "9781d099ba121e039fb94b2e255b890ade9e1acb",
       [
        "webnn/conformance_tests/sign.https.any.html?cpu",
        {
@@ -879120,7 +878932,7 @@
       ]
      ],
      "sin.https.any.js": [
-      "1f9a5eaac540218dce2a415ab87b34ac8c2bb6cf",
+      "e363d74535482d5f7ce7e3c00644e2ad53e08da2",
       [
        "webnn/conformance_tests/sin.https.any.html?cpu",
        {
@@ -879231,7 +879043,7 @@
       ]
      ],
      "slice.https.any.js": [
-      "b1a30fc8106d96600703f1afc93e16d896ff2795",
+      "479340e7ee2dd2274aeb9f7f87e4202ec35483a4",
       [
        "webnn/conformance_tests/slice.https.any.html?cpu",
        {
@@ -879342,7 +879154,7 @@
       ]
      ],
      "softmax.https.any.js": [
-      "2d9f28dbf6a335f0961d2ff9c53750801a6af95f",
+      "4e6c091d8684774abdf3285a2adf8de97b39e7df",
       [
        "webnn/conformance_tests/softmax.https.any.html?cpu",
        {
@@ -879453,7 +879265,7 @@
       ]
      ],
      "softplus.https.any.js": [
-      "ba8b8f3001827f34b5186dd11b6bddf1117126bb",
+      "d07263ed89764cfec924a81463ed10f9daadfbc2",
       [
        "webnn/conformance_tests/softplus.https.any.html?cpu",
        {
@@ -879564,7 +879376,7 @@
       ]
      ],
      "softsign.https.any.js": [
-      "9c7c4d10774221f622273e2d913165e881213713",
+      "b57834503b609c44b3b1f9a6786b6409a53fcdb7",
       [
        "webnn/conformance_tests/softsign.https.any.html?cpu",
        {
@@ -879675,7 +879487,7 @@
       ]
      ],
      "split.https.any.js": [
-      "a6695e202d488c9079e81236efa20476120fd13b",
+      "e51f5b611d88bda843f3a974a622d736630164d8",
       [
        "webnn/conformance_tests/split.https.any.html?cpu",
        {
@@ -879786,7 +879598,7 @@
       ]
      ],
      "sqrt.https.any.js": [
-      "f56dde65a1a18ac2319c6d2aa9f011d0c98ffbcb",
+      "369412f211c446eea8ec2393c20ba08063f64afd",
       [
        "webnn/conformance_tests/sqrt.https.any.html?cpu",
        {
@@ -879897,7 +879709,7 @@
       ]
      ],
      "sub.https.any.js": [
-      "d93acf5e30e7eb04360268735eba1c589bee64eb",
+      "10b66b0b24ef08863054804ef93d0a81ffa68a18",
       [
        "webnn/conformance_tests/sub.https.any.html?cpu",
        {
@@ -880008,7 +879820,7 @@
       ]
      ],
      "subgraph.https.any.js": [
-      "6775b91a91258781705780c8b3e68cd9b962cac5",
+      "990aa45a5e0c954efbdd8dd6dff79388963be9a1",
       [
        "webnn/conformance_tests/subgraph.https.any.html?cpu",
        {
@@ -880443,7 +880255,7 @@
       ]
      ],
      "tan.https.any.js": [
-      "79194b34dd022ff33b2d4334f3954fe24126c309",
+      "6e156807a0c1e9383d5f322eea067e25c50d3ca1",
       [
        "webnn/conformance_tests/tan.https.any.html?cpu",
        {
@@ -880554,7 +880366,7 @@
       ]
      ],
      "tanh.https.any.js": [
-      "6d61fd5d388712c17ab02ab6dbba26b9072ef359",
+      "aa6bccea238aed8c7e16697c6229f98e37fd9c8a",
       [
        "webnn/conformance_tests/tanh.https.any.html?cpu",
        {
@@ -881148,7 +880960,7 @@
       ]
      ],
      "tile.https.any.js": [
-      "fae0c07ccdaffb8f6a91a8f6ac6400bbef628257",
+      "83f6cf2657e788b948a56c975cddf00d69a074bb",
       [
        "webnn/conformance_tests/tile.https.any.html?cpu",
        {
@@ -881259,7 +881071,7 @@
       ]
      ],
      "transpose.https.any.js": [
-      "e50317dcab941b0eb3ca54ffb511b924390b3a40",
+      "dd5263e692b55a3be82f0748730683765e25ce4a",
       [
        "webnn/conformance_tests/transpose.https.any.html?cpu",
        {
@@ -881370,7 +881182,7 @@
       ]
      ],
      "triangular.https.any.js": [
-      "2e5ea0ddfffb8895994d7f1efb73a9625cbdb1f0",
+      "21788bd540de82ff27009c618550860125058f4f",
       [
        "webnn/conformance_tests/triangular.https.any.html?cpu",
        {
@@ -881481,7 +881293,7 @@
       ]
      ],
      "where.https.any.js": [
-      "1100fdda17caacd99d754bdcca0e3ac23c2025ef",
+      "0c3e03e84d526dd7d9af7312fd72f1fb2b4a0d16",
       [
        "webnn/conformance_tests/where.https.any.html?cpu",
        {
@@ -900217,7 +900029,7 @@
      ]
     ],
     "rtp-stats-lifetime.https.html": [
-     "1c5ec9142f8090b48842b9329a5a07e69d05674b",
+     "b0a3bf8e09d61d968b5bdf94d6abd96e2509b0bc",
      [
       null,
       {
@@ -946478,7 +946290,7 @@
          ]
         ],
         "navigate.py": [
-         "637df8af37e842a6175bc6b0317ef2f111d4c95e",
+         "0ca19e12bd4d0ffeb94d283a819de849b3ff03b1",
          [
           null,
           {}
@@ -950062,7 +949874,7 @@
         ]
        ],
        "set.py": [
-        "97e6c2edb18fc7425bd8439c0d9dc75a3cca0dac",
+        "7fac83056081be42412c27e3f6a2562f4fb38be8",
         [
          null,
          {
diff --git a/tests/wpt/meta/css/css-animations/animate-font-size-with-margin-override.html.ini b/tests/wpt/meta/css/css-animations/animate-font-size-with-margin-override.html.ini
new file mode 100644
index 00000000000..8ac3c2a749b
--- /dev/null
+++ b/tests/wpt/meta/css/css-animations/animate-font-size-with-margin-override.html.ini
@@ -0,0 +1,2 @@
+[animate-font-size-with-margin-override.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-cascade/layer-cssom-order-reverse.html.ini b/tests/wpt/meta/css/css-cascade/layer-cssom-order-reverse.html.ini
deleted file mode 100644
index 6694f4405f2..00000000000
--- a/tests/wpt/meta/css/css-cascade/layer-cssom-order-reverse.html.ini
+++ /dev/null
@@ -1,3 +0,0 @@
-[layer-cssom-order-reverse.html]
-  [Delete layer invalidates @font-face]
-    expected: FAIL
diff --git a/tests/wpt/meta/css/css-cascade/revert-rule-basic.tentative.html.ini b/tests/wpt/meta/css/css-cascade/revert-rule-basic.tentative.html.ini
new file mode 100644
index 00000000000..0e944ec21cd
--- /dev/null
+++ b/tests/wpt/meta/css/css-cascade/revert-rule-basic.tentative.html.ini
@@ -0,0 +1,12 @@
+[revert-rule-basic.tentative.html]
+  [The revert-rule keyword rolls back to the previous rule]
+    expected: FAIL
+
+  [Cascade order determines the previous rule, not order of appearance]
+    expected: FAIL
+
+  [Reverting from style attribute reverts to regular rules]
+    expected: FAIL
+
+  [A chain of revert-rule works]
+    expected: FAIL
diff --git a/tests/wpt/meta/css/css-cascade/revert-rule-layer.tentative.html.ini b/tests/wpt/meta/css/css-cascade/revert-rule-layer.tentative.html.ini
new file mode 100644
index 00000000000..1db97384c19
--- /dev/null
+++ b/tests/wpt/meta/css/css-cascade/revert-rule-layer.tentative.html.ini
@@ -0,0 +1,6 @@
+[revert-rule-layer.tentative.html]
+  [The revert-rule keyword can cross layers]
+    expected: FAIL
+
+  [The revert-rule does not unconditionally cross layers]
+    expected: FAIL
diff --git a/tests/wpt/meta/css/css-color/display-p3-linear-001.html.ini b/tests/wpt/meta/css/css-color/display-p3-linear-001.html.ini
new file mode 100644
index 00000000000..6196072a7fd
--- /dev/null
+++ b/tests/wpt/meta/css/css-color/display-p3-linear-001.html.ini
@@ -0,0 +1,2 @@
+[display-p3-linear-001.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-color/display-p3-linear-002.html.ini b/tests/wpt/meta/css/css-color/display-p3-linear-002.html.ini
new file mode 100644
index 00000000000..e19401470a9
--- /dev/null
+++ b/tests/wpt/meta/css/css-color/display-p3-linear-002.html.ini
@@ -0,0 +1,2 @@
+[display-p3-linear-002.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-color/display-p3-linear-003.html.ini b/tests/wpt/meta/css/css-color/display-p3-linear-003.html.ini
new file mode 100644
index 00000000000..9fef2b196f1
--- /dev/null
+++ b/tests/wpt/meta/css/css-color/display-p3-linear-003.html.ini
@@ -0,0 +1,2 @@
+[display-p3-linear-003.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-color/display-p3-linear-004.html.ini b/tests/wpt/meta/css/css-color/display-p3-linear-004.html.ini
new file mode 100644
index 00000000000..7d529b44624
--- /dev/null
+++ b/tests/wpt/meta/css/css-color/display-p3-linear-004.html.ini
@@ -0,0 +1,2 @@
+[display-p3-linear-004.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-color/display-p3-linear-005.html.ini b/tests/wpt/meta/css/css-color/display-p3-linear-005.html.ini
new file mode 100644
index 00000000000..64abf6397d3
--- /dev/null
+++ b/tests/wpt/meta/css/css-color/display-p3-linear-005.html.ini
@@ -0,0 +1,2 @@
+[display-p3-linear-005.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-color/display-p3-linear-006.html.ini b/tests/wpt/meta/css/css-color/display-p3-linear-006.html.ini
new file mode 100644
index 00000000000..3819009df96
--- /dev/null
+++ b/tests/wpt/meta/css/css-color/display-p3-linear-006.html.ini
@@ -0,0 +1,2 @@
+[display-p3-linear-006.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-color/parsing/color-computed-color-function.html.ini b/tests/wpt/meta/css/css-color/parsing/color-computed-color-function.html.ini
index a6fa3d76ab3..397592ae845 100644
--- a/tests/wpt/meta/css/css-color/parsing/color-computed-color-function.html.ini
+++ b/tests/wpt/meta/css/css-color/parsing/color-computed-color-function.html.ini
@@ -232,3 +232,144 @@
 
   [Property color value 'color(srgb calc(0.5 + (sign(2cqw - 10px) * 0.1)) 0 0 / 0.52)']
     expected: FAIL
+
+  [Property color value 'color(display-p3-linear 0% 0% 0%)']
+    expected: FAIL
+
+  [Property color value 'color(display-p3-linear 10% 10% 10%)']
+    expected: FAIL
+
+  [Property color value 'color(display-p3-linear .2 .2 25%)']
+    expected: FAIL
+
+  [Property color value 'color(display-p3-linear 0 0 0 / 1)']
+    expected: FAIL
+
+  [Property color value 'color(display-p3-linear 0% 0 0 / 0.5)']
+    expected: FAIL
+
+  [Property color value 'color(display-p3-linear 20% 0 10/0.5)']
+    expected: FAIL
+
+  [Property color value 'color(display-p3-linear 20% 0 10/50%)']
+    expected: FAIL
+
+  [Property color value 'color(display-p3-linear 400% 0 10/50%)']
+    expected: FAIL
+
+  [Property color value 'color(display-p3-linear 50% -160 160)']
+    expected: FAIL
+
+  [Property color value 'color(display-p3-linear 50% -200 200)']
+    expected: FAIL
+
+  [Property color value 'color(display-p3-linear 0 0 0 / -10%)']
+    expected: FAIL
+
+  [Property color value 'color(display-p3-linear 0 0 0 / 110%)']
+    expected: FAIL
+
+  [Property color value 'color(display-p3-linear 0 0 0 / 300%)']
+    expected: FAIL
+
+  [Property color value 'color(display-p3-linear 200 200 200)']
+    expected: FAIL
+
+  [Property color value 'color(display-p3-linear 200 200 200 / 200)']
+    expected: FAIL
+
+  [Property color value 'color(display-p3-linear -200 -200 -200)']
+    expected: FAIL
+
+  [Property color value 'color(display-p3-linear -200 -200 -200 / -200)']
+    expected: FAIL
+
+  [Property color value 'color(display-p3-linear 200% 200% 200%)']
+    expected: FAIL
+
+  [Property color value 'color(display-p3-linear 200% 200% 200% / 200%)']
+    expected: FAIL
+
+  [Property color value 'color(display-p3-linear -200% -200% -200% / -200%)']
+    expected: FAIL
+
+  [Property color value 'color(display-p3-linear calc(0.5 + 1) calc(0.5 - 1) calc(0.5) / calc(-0.5 + 1))']
+    expected: FAIL
+
+  [Property color value 'color(display-p3-linear calc(50% * 3) calc(-150% / 3) calc(50%) / calc(-50% * 3))']
+    expected: FAIL
+
+  [Property color value 'color(display-p3-linear none none none / none)']
+    expected: FAIL
+
+  [Property color value 'color(display-p3-linear none none none)']
+    expected: FAIL
+
+  [Property color value 'color(display-p3-linear 10% none none / none)']
+    expected: FAIL
+
+  [Property color value 'color(display-p3-linear none none none / 0.5)']
+    expected: FAIL
+
+  [Property color value 'color(display-p3-linear 0 0 0 / none)']
+    expected: FAIL
+
+  [Property color value 'color(display-p3-linear calc(NaN) 0 0)']
+    expected: FAIL
+
+  [Property color value 'color(display-p3-linear calc(0 / 0) 0 0)']
+    expected: FAIL
+
+  [Property color value 'color(display-p3-linear calc(50% + (sign(1em - 10px) * 10%)) 0 0 / 0.5)']
+    expected: FAIL
+
+  [Property color value 'color(display-p3-linear 0.5 0 0 / calc(50% + (sign(1em - 10px) * 10%)))']
+    expected: FAIL
+
+  [Property color value 'color(display-p3-linear 1.00 0.50 0.200)' [Display P3 Linear all numbers\]]
+    expected: FAIL
+
+  [Property color value 'color(display-p3-linear 100% 50% 20%)' [Display P3 Linear all percent\]]
+    expected: FAIL
+
+  [Property color value 'color(display-p3-linear 100% 0.5 20%)' [Display P3 Linear mixed number and percent\]]
+    expected: FAIL
+
+  [Property color value 'color(display-p3-linear 1.00 50% 0.2)' [Display P3 Linear mixed number and percent 2\]]
+    expected: FAIL
+
+  [Property color value 'color(display-p3-linear none none none)' [Display P3 Linear all none\]]
+    expected: FAIL
+
+  [Property color value 'color(display-p3-linear 1.00 none 0.2)' [Display P3 Linear number and none\]]
+    expected: FAIL
+
+  [Property color value 'color(display-p3-linear 100% none 20%)' [Display P3 Linear percent and none\]]
+    expected: FAIL
+
+  [Property color value 'color(display-p3-linear 100% none 0.2)' [Display P3 Linear number, percent and none\]]
+    expected: FAIL
+
+  [Property color value 'color(display-p3-linear 1.00 0.50 0.200 / 0.6)' [Display P3 Linear with alpha, all numbers\]]
+    expected: FAIL
+
+  [Property color value 'color(display-p3-linear 100% 50% 20% / 60%)' [Display P3 Linear with alpha, all percent\]]
+    expected: FAIL
+
+  [Property color value 'color(display-p3-linear 100% 0.5 20% / 0.6)' [Display P3 Linear with alpha, mixed number and percent\]]
+    expected: FAIL
+
+  [Property color value 'color(display-p3-linear 1.00 50% 0.2 / 60%)' [Display P3 Linear with alpha, mixed number and percent 2\]]
+    expected: FAIL
+
+  [Property color value 'color(display-p3-linear none none none / none)' [Display P3 Linear with alpha, all none\]]
+    expected: FAIL
+
+  [Property color value 'color(display-p3-linear 1.00 none 0.2 / none)' [Display P3 Linear with alpha, number and none\]]
+    expected: FAIL
+
+  [Property color value 'color(display-p3-linear 100% none 20% / 30%)' [Display P3 Linear with alpha, percent and none\]]
+    expected: FAIL
+
+  [Property color value 'color(display-p3-linear 100% none 0.2 / 23.7%)' [Display P3 Linear with alpha, number, percent and none\]]
+    expected: FAIL
diff --git a/tests/wpt/meta/css/css-color/parsing/color-computed-color-mix-function.html.ini b/tests/wpt/meta/css/css-color/parsing/color-computed-color-mix-function.html.ini
index 70794e725e4..58d9beb7f58 100644
--- a/tests/wpt/meta/css/css-color/parsing/color-computed-color-mix-function.html.ini
+++ b/tests/wpt/meta/css/css-color/parsing/color-computed-color-mix-function.html.ini
@@ -1,3 +1,129 @@
 [color-computed-color-mix-function.html]
   [Property color value 'color-mix(in srgb, red calc(50% + (sign(100em - 1px) * 10%)), blue)']
     expected: FAIL
+
+  [Property color value 'color-mix(in display-p3-linear, color(display-p3-linear .1 .2 .3), color(display-p3-linear .5 .6 .7))']
+    expected: FAIL
+
+  [Property color value 'color-mix(in display-p3-linear, color(display-p3-linear .1 .2 .3) 25%, color(display-p3-linear .5 .6 .7))']
+    expected: FAIL
+
+  [Property color value 'color-mix(in display-p3-linear, 25% color(display-p3-linear .1 .2 .3), color(display-p3-linear .5 .6 .7))']
+    expected: FAIL
+
+  [Property color value 'color-mix(in display-p3-linear, color(display-p3-linear .1 .2 .3), color(display-p3-linear .5 .6 .7) 25%)']
+    expected: FAIL
+
+  [Property color value 'color-mix(in display-p3-linear, color(display-p3-linear .1 .2 .3), 25% color(display-p3-linear .5 .6 .7))']
+    expected: FAIL
+
+  [Property color value 'color-mix(in display-p3-linear, color(display-p3-linear .1 .2 .3) 25%, color(display-p3-linear .5 .6 .7) 75%)']
+    expected: FAIL
+
+  [Property color value 'color-mix(in display-p3-linear, color(display-p3-linear .1 .2 .3) 30%, color(display-p3-linear .5 .6 .7) 90%)']
+    expected: FAIL
+
+  [Property color value 'color-mix(in display-p3-linear, color(display-p3-linear .1 .2 .3) 12.5%, color(display-p3-linear .5 .6 .7) 37.5%)']
+    expected: FAIL
+
+  [Property color value 'color-mix(in display-p3-linear, color(display-p3-linear .1 .2 .3) 0%, color(display-p3-linear .5 .6 .7))']
+    expected: FAIL
+
+  [Property color value 'color-mix(in display-p3-linear, color(display-p3-linear .1 .2 .3 / .5), color(display-p3-linear .5 .6 .7 / .8))']
+    expected: FAIL
+
+  [Property color value 'color-mix(in display-p3-linear, color(display-p3-linear .1 .2 .3 / .4) 25%, color(display-p3-linear .5 .6 .7 / .8))']
+    expected: FAIL
+
+  [Property color value 'color-mix(in display-p3-linear, 25% color(display-p3-linear .1 .2 .3 / .4), color(display-p3-linear .5 .6 .7 / .8))']
+    expected: FAIL
+
+  [Property color value 'color-mix(in display-p3-linear, color(display-p3-linear .1 .2 .3 / .4), color(display-p3-linear .5 .6 .7 / .8) 25%)']
+    expected: FAIL
+
+  [Property color value 'color-mix(in display-p3-linear, color(display-p3-linear .1 .2 .3 / .4), 25% color(display-p3-linear .5 .6 .7 / .8))']
+    expected: FAIL
+
+  [Property color value 'color-mix(in display-p3-linear, color(display-p3-linear .1 .2 .3 / .4) 25%, color(display-p3-linear .5 .6 .7 / .8) 75%)']
+    expected: FAIL
+
+  [Property color value 'color-mix(in display-p3-linear, color(display-p3-linear .1 .2 .3 / .4) 30%, color(display-p3-linear .5 .6 .7 / .8) 90%)']
+    expected: FAIL
+
+  [Property color value 'color-mix(in display-p3-linear, color(display-p3-linear .1 .2 .3 / .4) 12.5%, color(display-p3-linear .5 .6 .7 / .8) 37.5%)']
+    expected: FAIL
+
+  [Property color value 'color-mix(in display-p3-linear, color(display-p3-linear .1 .2 .3 / .4) 0%, color(display-p3-linear .5 .6 .7 / .8))']
+    expected: FAIL
+
+  [Property color value 'color-mix(in display-p3-linear, transparent, color(display-p3-linear 0.3 0.4 0.5))']
+    expected: FAIL
+
+  [Property color value 'color-mix(in display-p3-linear, transparent 10%, color(display-p3-linear 0.3 0.4 0.5))']
+    expected: FAIL
+
+  [Property color value 'color-mix(in display-p3-linear, color(display-p3-linear 0.1 0.2 0.3 / 0), color(display-p3-linear 0.3 0.4 0.5))']
+    expected: FAIL
+
+  [Property color value 'color-mix(in display-p3-linear, color(display-p3-linear 0.1 0.2 0.3 / 0) 10%, color(display-p3-linear 0.3 0.4 0.5))']
+    expected: FAIL
+
+  [Property color value 'color-mix(in display-p3-linear, color(display-p3-linear 1 1 1), color(display-p3-linear 0 0 1))']
+    expected: FAIL
+
+  [Property color value 'color-mix(in display-p3-linear, color(display-p3-linear 1 1 1) 10%, color(display-p3-linear 0 0 1))']
+    expected: FAIL
+
+  [Property color value 'color-mix(in display-p3-linear, color(display-p3-linear 2 3 4 / 5), color(display-p3-linear 4 6 8 / 10))']
+    expected: FAIL
+
+  [Property color value 'color-mix(in display-p3-linear, color(display-p3-linear -2 -3 -4), color(display-p3-linear -4 -6 -8))']
+    expected: FAIL
+
+  [Property color value 'color-mix(in display-p3-linear, color(display-p3-linear -2 -3 -4 / -5), color(display-p3-linear -4 -6 -8 / -10))']
+    expected: FAIL
+
+  [Property color value 'color-mix(in display-p3-linear, color(display-p3-linear none none none), color(display-p3-linear none none none))']
+    expected: FAIL
+
+  [Property color value 'color-mix(in display-p3-linear, color(display-p3-linear none none none), color(display-p3-linear .5 .6 .7))']
+    expected: FAIL
+
+  [Property color value 'color-mix(in display-p3-linear, color(display-p3-linear .1 .2 .3), color(display-p3-linear none none none))']
+    expected: FAIL
+
+  [Property color value 'color-mix(in display-p3-linear, color(display-p3-linear .1 .2 none), color(display-p3-linear .5 .6 .7))']
+    expected: FAIL
+
+  [Property color value 'color-mix(in display-p3-linear, color(display-p3-linear .1 .2 .3), color(display-p3-linear .5 .6 none))']
+    expected: FAIL
+
+  [Property color value 'color-mix(in display-p3-linear, color(display-p3-linear none .2 .3), color(display-p3-linear .5 none .7))']
+    expected: FAIL
+
+  [Property color value 'color-mix(in display-p3-linear, color(display-p3-linear .1 .2 .3 / none), color(display-p3-linear .5 .6 .7))']
+    expected: FAIL
+
+  [Property color value 'color-mix(in display-p3-linear, color(display-p3-linear .1 .2 .3 / none), color(display-p3-linear .5 .6 .7 / 0.5))']
+    expected: FAIL
+
+  [Property color value 'color-mix(in display-p3-linear, color(display-p3-linear .1 .2 .3 / none), color(display-p3-linear .5 .6 .7 / none))']
+    expected: FAIL
+
+  [Property color value 'color-mix(in display-p3-linear, color(display-p3-linear .1 .2 .3 / 25%) 0%, color(display-p3-linear 0.5 none none / none))']
+    expected: FAIL
+
+  [Property color value 'color-mix(in display-p3-linear, color(display-p3-linear .1 .2 .3 / 25%) 0%, color(display-p3-linear none 0.5 none / none))']
+    expected: FAIL
+
+  [Property color value 'color-mix(in display-p3-linear, color(display-p3-linear .1 .2 .3 / 25%) 0%, color(display-p3-linear none none 0.5 / none))']
+    expected: FAIL
+
+  [Property color value 'color-mix(in display-p3-linear, color(display-p3-linear .1 .2 .3 / 25%) 0%, color(display-p3-linear 0.5 0.5 none / none))']
+    expected: FAIL
+
+  [Property color value 'color-mix(in display-p3-linear, color(display-p3-linear .1 .2 .3 / 25%) 0%, color(display-p3-linear none none none / 50%))']
+    expected: FAIL
+
+  [Property color value 'color-mix(in display-p3-linear, color(display-p3-linear .1 .2 .3 / 25%) 0%, color(display-p3-linear 0.5 none none / 50%))']
+    expected: FAIL
diff --git a/tests/wpt/meta/css/css-color/parsing/color-computed-relative-color.html.ini b/tests/wpt/meta/css/css-color/parsing/color-computed-relative-color.html.ini
index 02097868834..dc84f18fade 100644
--- a/tests/wpt/meta/css/css-color/parsing/color-computed-relative-color.html.ini
+++ b/tests/wpt/meta/css/css-color/parsing/color-computed-relative-color.html.ini
@@ -499,3 +499,225 @@
 
   [Property color value 'LCH(from var(--accent) l c calc(h + 180 * sibling-index()))']
     expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear r g b)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear r g b / alpha)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3 / 40%) display-p3-linear r g b)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3 / 40%) display-p3-linear r g b / alpha)']
+    expected: FAIL
+
+  [Property color value 'color(from color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear r g b) display-p3-linear r g b)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear 0 0 0)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear 0 0 0 / 0)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear 0 g b / alpha)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear r 0 b / alpha)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear r g 0 / alpha)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear r g b / 0)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3 / 40%) display-p3-linear 0 g b / alpha)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3 / 40%) display-p3-linear r 0 b / alpha)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3 / 40%) display-p3-linear r g 0 / alpha)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3 / 40%) display-p3-linear r g b / 0)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear 0.2 g b / alpha)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear 20% g b / alpha)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear r 0.2 b / alpha)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear r 20% b / alpha)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear r g 0.2 / alpha)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear r g 20% / alpha)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear r g b / 0.2)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear r g b / 20%)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3 / 40%) display-p3-linear 0.2 g b / alpha)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3 / 40%) display-p3-linear 20% g b / alpha)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3 / 40%) display-p3-linear r 0.2 b / alpha)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3 / 40%) display-p3-linear r 20% b / alpha)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3 / 40%) display-p3-linear r g 0.2 / alpha)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3 / 40%) display-p3-linear r g 20% / alpha)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3 / 40%) display-p3-linear r g b / 0.2)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3 / 40%) display-p3-linear r g b / 20%)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear 2 3 4)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear 2 3 4 / 5)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear -2 -3 -4)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear -2 -3 -4 / -5)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear 200% 300% 400%)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear 200% 300% 400% / 500%)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear -200% -300% -400%)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear -200% -300% -400% / -500%)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear g b r)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear b alpha r / g)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear r r r / r)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear alpha alpha alpha / alpha)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3 / 40%) display-p3-linear g b r)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3 / 40%) display-p3-linear b alpha r / g)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3 / 40%) display-p3-linear r r r / r)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3 / 40%) display-p3-linear alpha alpha alpha / alpha)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 1.7 1.5 1.3) display-p3-linear r g b)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 1.7 1.5 1.3) display-p3-linear r g b / alpha)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 1.7 1.5 1.3 / 140%) display-p3-linear r g b)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 1.7 1.5 1.3 / 140%) display-p3-linear r g b / alpha)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear -0.7 -0.5 -0.3) display-p3-linear r g b)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear -0.7 -0.5 -0.3) display-p3-linear r g b / alpha)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear -0.7 -0.5 -0.3 / -40%) display-p3-linear r g b)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear -0.7 -0.5 -0.3 / -40%) display-p3-linear r g b / alpha)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear calc(r) calc(g) calc(b))']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3 / 40%) display-p3-linear calc(r) calc(g) calc(b) / calc(alpha))']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3 / 0.8) display-p3-linear calc(r + 0.01) calc(g + 0.01) calc(b + 0.01) / calc(alpha + 0.01))']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear calc(r * 100%) calc(g * 100%) calc(b * 100%) / calc(alpha * 100%))']
+    expected: FAIL
+
+  [Property color value 'color(from color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear r g b / calc(alpha + 0.5)) display-p3-linear r g b / calc(alpha - 0.5))']
+    expected: FAIL
+
+  [Property color value 'color(from color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear r g b / calc(alpha - 1.5)) display-p3-linear r g b / calc(alpha + 0.5))']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear none none none)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear none none none / none)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear r g none)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear r g none / alpha)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear r g b / none)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3 / 40%) display-p3-linear r g none / alpha)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3 / 40%) display-p3-linear r g b / none)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear none none none) display-p3-linear r g b)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear none none none / none) display-p3-linear r g b / alpha)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 none 0.3) display-p3-linear r g b)']
+    expected: FAIL
+
+  [Property color value 'color(from color(display-p3-linear 0.7 0.5 0.3 / none) display-p3-linear r g b / alpha)']
+    expected: FAIL
+
+  [Property background-color value 'color(from currentColor display-p3-linear r g b)']
+    expected: FAIL
+
+  [Property color value 'color(from color-mix(in xyz, color(display-p3-linear 0.7 0.5 0.3), color(display-p3-linear 0.7 0.5 0.3)) display-p3-linear r g b / alpha)']
+    expected: FAIL
diff --git a/tests/wpt/meta/css/css-color/parsing/color-valid-color-function.html.ini b/tests/wpt/meta/css/css-color/parsing/color-valid-color-function.html.ini
index f15c16c1cd1..c069e1147cc 100644
--- a/tests/wpt/meta/css/css-color/parsing/color-valid-color-function.html.ini
+++ b/tests/wpt/meta/css/css-color/parsing/color-valid-color-function.html.ini
@@ -313,3 +313,105 @@
 
   [e.style['color'\] = "color(xyz-d65 0.5 0 0 / calc(50% + (sign(1em - 10px) * 10%)))" should set the property value]
     expected: FAIL
+
+  [e.style['color'\] = "color(display-p3-linear 0% 0% 0%)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(display-p3-linear 10% 10% 10%)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(display-p3-linear .2 .2 25%)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(display-p3-linear 0 0 0 / 1)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(display-p3-linear 0% 0 0 / 0.5)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(display-p3-linear 20% 0 10/0.5)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(display-p3-linear 20% 0 10/50%)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(display-p3-linear 400% 0 10/50%)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(display-p3-linear 50% -160 160)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(display-p3-linear 50% -200 200)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(display-p3-linear 0 0 0 / -10%)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(display-p3-linear 0 0 0 / 110%)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(display-p3-linear 0 0 0 / 300%)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(display-p3-linear 200 200 200)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(display-p3-linear 200 200 200 / 200)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(display-p3-linear -200 -200 -200)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(display-p3-linear -200 -200 -200 / -200)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(display-p3-linear 200% 200% 200%)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(display-p3-linear 200% 200% 200% / 200%)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(display-p3-linear -200% -200% -200% / -200%)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(display-p3-linear calc(0.5 + 1) calc(0.5 - 1) calc(0.5) / calc(-0.5 + 1))" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(display-p3-linear calc(50% * 3) calc(-150% / 3) calc(50%) / calc(-50% * 3))" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(display-p3-linear calc(50%) 50% 0.5)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(display-p3-linear none none none / none)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(display-p3-linear none none none)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(display-p3-linear 10% none none / none)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(display-p3-linear none none none / 0.5)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(display-p3-linear 0 0 0 / none)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(display-p3-linear 0 calc(infinity) 0)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(display-p3-linear 0 calc(-infinity) 0)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(display-p3-linear calc(NaN) 0 0)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(display-p3-linear calc(0 / 0) 0 0)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(display-p3-linear calc(50% + (sign(1em - 10px) * 10%)) 0 0 / 0.5)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(display-p3-linear 0.5 0 0 / calc(50% + (sign(1em - 10px) * 10%)))" should set the property value]
+    expected: FAIL
diff --git a/tests/wpt/meta/css/css-color/parsing/color-valid-color-mix-function.html.ini b/tests/wpt/meta/css/css-color/parsing/color-valid-color-mix-function.html.ini
index 561ada105d0..f605d5ddc50 100644
--- a/tests/wpt/meta/css/css-color/parsing/color-valid-color-mix-function.html.ini
+++ b/tests/wpt/meta/css/css-color/parsing/color-valid-color-mix-function.html.ini
@@ -283,3 +283,87 @@
 
   [e.style['color'\] = "color-mix(in hsl, red calc(50% * sign(100em - 1px)), blue)" should set the property value]
     expected: FAIL
+
+  [e.style['color'\] = "color-mix(in display-p3-linear, color(display-p3-linear .1 .2 .3), color(display-p3-linear .5 .6 .7))" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color-mix(in display-p3-linear, 50% color(display-p3-linear .1 .2 .3), color(display-p3-linear .5 .6 .7))" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color-mix(in display-p3-linear, color(display-p3-linear .1 .2 .3), 50% color(display-p3-linear .5 .6 .7))" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color-mix(in display-p3-linear, color(display-p3-linear .1 .2 .3) 25%, color(display-p3-linear .5 .6 .7))" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color-mix(in display-p3-linear, color(display-p3-linear .1 .2 .3), color(display-p3-linear .5 .6 .7) 25%)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color-mix(in display-p3-linear, color(display-p3-linear .1 .2 .3) 25%, color(display-p3-linear .5 .6 .7) 75%)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color-mix(in display-p3-linear, color(display-p3-linear .1 .2 .3) 30%, color(display-p3-linear .5 .6 .7) 90%)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color-mix(in display-p3-linear, color(display-p3-linear .1 .2 .3) 12.5%, color(display-p3-linear .5 .6 .7) 37.5%)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color-mix(in display-p3-linear, color(display-p3-linear .1 .2 .3) 0%, color(display-p3-linear .5 .6 .7))" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color-mix(in display-p3-linear, color(display-p3-linear .1 .2 .3 / .5), color(display-p3-linear .5 .6 .7 / .8))" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color-mix(in display-p3-linear, color(display-p3-linear .1 .2 .3 / .4) 25%, color(display-p3-linear .5 .6 .7 / .8))" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color-mix(in display-p3-linear, color(display-p3-linear .1 .2 .3 / .4), color(display-p3-linear .5 .6 .7 / .8) 25%)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color-mix(in display-p3-linear, color(display-p3-linear .1 .2 .3 / .4) 25%, color(display-p3-linear .5 .6 .7 / .8) 75%)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color-mix(in display-p3-linear, color(display-p3-linear .1 .2 .3 / .4) 30%, color(display-p3-linear .5 .6 .7 / .8) 90%)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color-mix(in display-p3-linear, color(display-p3-linear .1 .2 .3 / .4) 12.5%, color(display-p3-linear .5 .6 .7 / .8) 37.5%)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color-mix(in display-p3-linear, color(display-p3-linear .1 .2 .3 / .4) 0%, color(display-p3-linear .5 .6 .7 / .8))" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color-mix(in display-p3-linear, color(display-p3-linear 2 3 4 / 5), color(display-p3-linear 4 6 8 / 10))" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color-mix(in display-p3-linear, color(display-p3-linear -2 -3 -4), color(display-p3-linear -4 -6 -8))" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color-mix(in display-p3-linear, color(display-p3-linear -2 -3 -4 / -5), color(display-p3-linear -4 -6 -8 / -10))" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color-mix(in display-p3-linear, color(display-p3-linear none none none), color(display-p3-linear none none none))" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color-mix(in display-p3-linear, color(display-p3-linear none none none), color(display-p3-linear .5 .6 .7))" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color-mix(in display-p3-linear, color(display-p3-linear .1 .2 .3), color(display-p3-linear none none none))" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color-mix(in display-p3-linear, color(display-p3-linear .1 .2 none), color(display-p3-linear .5 .6 .7))" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color-mix(in display-p3-linear, color(display-p3-linear .1 .2 .3), color(display-p3-linear .5 .6 none))" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color-mix(in display-p3-linear, color(display-p3-linear none .2 .3), color(display-p3-linear .5 none .7))" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color-mix(in display-p3-linear, color(display-p3-linear .1 .2 .3 / none), color(display-p3-linear .5 .6 .7))" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color-mix(in display-p3-linear, color(display-p3-linear .1 .2 .3 / none), color(display-p3-linear .5 .6 .7 / 0.5))" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color-mix(in display-p3-linear, color(display-p3-linear .1 .2 .3 / none), color(display-p3-linear .5 .6 .7 / none))" should set the property value]
+    expected: FAIL
diff --git a/tests/wpt/meta/css/css-color/parsing/color-valid-relative-color.html.ini b/tests/wpt/meta/css/css-color/parsing/color-valid-relative-color.html.ini
index 0c307e06026..2f0906a373e 100644
--- a/tests/wpt/meta/css/css-color/parsing/color-valid-relative-color.html.ini
+++ b/tests/wpt/meta/css/css-color/parsing/color-valid-relative-color.html.ini
@@ -532,3 +532,213 @@
 
   [e.style['color'\] = "rgb(from color(srgb 0.4 0.2 0.6) r g b)" should set the property value]
     expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear r g b)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear r g b / alpha)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3 / 40%) display-p3-linear r g b)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3 / 40%) display-p3-linear r g b / alpha)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear r g b) display-p3-linear r g b)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear 0 0 0)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear 0 0 0 / 0)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear 0 g b / alpha)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear r 0 b / alpha)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear r g 0 / alpha)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear r g b / 0)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3 / 40%) display-p3-linear 0 g b / alpha)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3 / 40%) display-p3-linear r 0 b / alpha)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3 / 40%) display-p3-linear r g 0 / alpha)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3 / 40%) display-p3-linear r g b / 0)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear 0.2 g b / alpha)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear 20% g b / alpha)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear r 0.2 b / alpha)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear r 20% b / alpha)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear r g 0.2 / alpha)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear r g 20% / alpha)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear r g b / 0.2)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear r g b / 20%)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3 / 40%) display-p3-linear 0.2 g b / alpha)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3 / 40%) display-p3-linear 20% g b / alpha)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3 / 40%) display-p3-linear r 0.2 b / alpha)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3 / 40%) display-p3-linear r 20% b / alpha)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3 / 40%) display-p3-linear r g 0.2 / alpha)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3 / 40%) display-p3-linear r g 20% / alpha)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3 / 40%) display-p3-linear r g b / 0.2)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3 / 40%) display-p3-linear r g b / 20%)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear 2 3 4)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear 2 3 4 / 5)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear -2 -3 -4)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear -2 -3 -4 / -5)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear 200% 300% 400%)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear 200% 300% 400% / 500%)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear -200% -300% -400%)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear -200% -300% -400% / -500%)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear g b r)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear b alpha r / g)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear r r r / r)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear alpha alpha alpha / alpha)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3 / 40%) display-p3-linear g b r)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3 / 40%) display-p3-linear b alpha r / g)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3 / 40%) display-p3-linear r r r / r)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3 / 40%) display-p3-linear alpha alpha alpha / alpha)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 1.7 1.5 1.3) display-p3-linear r g b)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 1.7 1.5 1.3) display-p3-linear r g b / alpha)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 1.7 1.5 1.3 / 140%) display-p3-linear r g b)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 1.7 1.5 1.3 / 140%) display-p3-linear r g b / alpha)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear -0.7 -0.5 -0.3) display-p3-linear r g b)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear -0.7 -0.5 -0.3) display-p3-linear r g b / alpha)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear -0.7 -0.5 -0.3 / -40%) display-p3-linear r g b)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear -0.7 -0.5 -0.3 / -40%) display-p3-linear r g b / alpha)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear calc(r) calc(g) calc(b))" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3 / 40%) display-p3-linear calc(r) calc(g) calc(b) / calc(alpha))" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear none none none)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear none none none / none)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear r g none)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear r g none / alpha)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3) display-p3-linear r g b / none)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3 / 40%) display-p3-linear r g none / alpha)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3 / 40%) display-p3-linear r g b / none)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear none none none) display-p3-linear r g b)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear none none none / none) display-p3-linear r g b / alpha)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 none 0.3) display-p3-linear r g b)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color(display-p3-linear 0.7 0.5 0.3 / none) display-p3-linear r g b / alpha)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from currentColor display-p3-linear r g b)" should set the property value]
+    expected: FAIL
+
+  [e.style['color'\] = "color(from color-mix(in display-p3-linear, color(display-p3-linear 0.7 0.5 0.3), color(display-p3-linear 0.7 0.5 0.3)) display-p3-linear r g b / alpha)" should set the property value]
+    expected: FAIL
diff --git a/tests/wpt/meta/css/css-conditional/container-queries/container-name-tree-scoped.html.ini b/tests/wpt/meta/css/css-conditional/container-queries/container-name-tree-scoped.html.ini
index b9cf122cf15..237360500dd 100644
--- a/tests/wpt/meta/css/css-conditional/container-queries/container-name-tree-scoped.html.ini
+++ b/tests/wpt/meta/css/css-conditional/container-queries/container-name-tree-scoped.html.ini
@@ -4,3 +4,9 @@
 
   [Inner scope query containing ::slotted should match container-name set by :host rule in shadow tree]
     expected: FAIL
+
+  [Outer scope query should match container-name set by :host rule in shadow tree]
+    expected: FAIL
+
+  [Outer scope query should match container-name set by ::slotted rule in shadow tree]
+    expected: FAIL
diff --git a/tests/wpt/meta/css/css-env/env-revert-rule.tentative.html.ini b/tests/wpt/meta/css/css-env/env-revert-rule.tentative.html.ini
new file mode 100644
index 00000000000..29895e7f837
--- /dev/null
+++ b/tests/wpt/meta/css/css-env/env-revert-rule.tentative.html.ini
@@ -0,0 +1,3 @@
+[env-revert-rule.tentative.html]
+  [The revert-rule works in an env() fallback]
+    expected: FAIL
diff --git a/tests/wpt/meta/css/css-fonts/generic-family-keywords-003.html.ini b/tests/wpt/meta/css/css-fonts/generic-family-keywords-003.html.ini
index 352995a05da..71346ad53c0 100644
--- a/tests/wpt/meta/css/css-fonts/generic-family-keywords-003.html.ini
+++ b/tests/wpt/meta/css/css-fonts/generic-family-keywords-003.html.ini
@@ -37,6 +37,3 @@
 
   [@font-face matching for quoted and unquoted generic(khmer-mul) (drawing text in a canvas)]
     expected: FAIL
-
-  [@font-face matching for quoted and unquoted generic(nastaliq) (drawing text in a canvas)]
-    expected: FAIL
diff --git a/tests/wpt/meta/css/css-grid/masonry/tentative/abspos/column-masonry-alignment.html.ini b/tests/wpt/meta/css/css-grid/masonry/tentative/abspos/column-masonry-alignment.html.ini
new file mode 100644
index 00000000000..5021d5c8bf4
--- /dev/null
+++ b/tests/wpt/meta/css/css-grid/masonry/tentative/abspos/column-masonry-alignment.html.ini
@@ -0,0 +1,2 @@
+[column-masonry-alignment.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-grid/masonry/tentative/abspos/column-masonry-out-of-flow-001.html.ini b/tests/wpt/meta/css/css-grid/masonry/tentative/abspos/column-masonry-out-of-flow-001.html.ini
new file mode 100644
index 00000000000..1a770a066f5
--- /dev/null
+++ b/tests/wpt/meta/css/css-grid/masonry/tentative/abspos/column-masonry-out-of-flow-001.html.ini
@@ -0,0 +1,2 @@
+[column-masonry-out-of-flow-001.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-grid/masonry/tentative/abspos/column-masonry-out-of-flow-002.html.ini b/tests/wpt/meta/css/css-grid/masonry/tentative/abspos/column-masonry-out-of-flow-002.html.ini
new file mode 100644
index 00000000000..b3da90ba468
--- /dev/null
+++ b/tests/wpt/meta/css/css-grid/masonry/tentative/abspos/column-masonry-out-of-flow-002.html.ini
@@ -0,0 +1,2 @@
+[column-masonry-out-of-flow-002.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-grid/masonry/tentative/abspos/column-masonry-out-of-flow-003.html.ini b/tests/wpt/meta/css/css-grid/masonry/tentative/abspos/column-masonry-out-of-flow-003.html.ini
new file mode 100644
index 00000000000..28035c26ce0
--- /dev/null
+++ b/tests/wpt/meta/css/css-grid/masonry/tentative/abspos/column-masonry-out-of-flow-003.html.ini
@@ -0,0 +1,2 @@
+[column-masonry-out-of-flow-003.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-grid/masonry/tentative/abspos/column-masonry-positioned-item-dynamic-change.html.ini b/tests/wpt/meta/css/css-grid/masonry/tentative/abspos/column-masonry-positioned-item-dynamic-change.html.ini
new file mode 100644
index 00000000000..2f45a9297fb
--- /dev/null
+++ b/tests/wpt/meta/css/css-grid/masonry/tentative/abspos/column-masonry-positioned-item-dynamic-change.html.ini
@@ -0,0 +1,2 @@
+[column-masonry-positioned-item-dynamic-change.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-grid/masonry/tentative/abspos/row-masonry-alignment.html.ini b/tests/wpt/meta/css/css-grid/masonry/tentative/abspos/row-masonry-alignment.html.ini
new file mode 100644
index 00000000000..13ec3ed096a
--- /dev/null
+++ b/tests/wpt/meta/css/css-grid/masonry/tentative/abspos/row-masonry-alignment.html.ini
@@ -0,0 +1,2 @@
+[row-masonry-alignment.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-grid/masonry/tentative/abspos/row-masonry-out-of-flow-001.html.ini b/tests/wpt/meta/css/css-grid/masonry/tentative/abspos/row-masonry-out-of-flow-001.html.ini
new file mode 100644
index 00000000000..1e235eef4c4
--- /dev/null
+++ b/tests/wpt/meta/css/css-grid/masonry/tentative/abspos/row-masonry-out-of-flow-001.html.ini
@@ -0,0 +1,2 @@
+[row-masonry-out-of-flow-001.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-grid/masonry/tentative/abspos/row-masonry-out-of-flow-002.html.ini b/tests/wpt/meta/css/css-grid/masonry/tentative/abspos/row-masonry-out-of-flow-002.html.ini
new file mode 100644
index 00000000000..f043935f438
--- /dev/null
+++ b/tests/wpt/meta/css/css-grid/masonry/tentative/abspos/row-masonry-out-of-flow-002.html.ini
@@ -0,0 +1,2 @@
+[row-masonry-out-of-flow-002.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-grid/masonry/tentative/abspos/row-masonry-out-of-flow-003.html.ini b/tests/wpt/meta/css/css-grid/masonry/tentative/abspos/row-masonry-out-of-flow-003.html.ini
new file mode 100644
index 00000000000..ac8a76cc5f4
--- /dev/null
+++ b/tests/wpt/meta/css/css-grid/masonry/tentative/abspos/row-masonry-out-of-flow-003.html.ini
@@ -0,0 +1,2 @@
+[row-masonry-out-of-flow-003.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-mixins/contents-rule.html.ini b/tests/wpt/meta/css/css-mixins/contents-rule.html.ini
index fe585237013..28b69b3e00c 100644
--- a/tests/wpt/meta/css/css-mixins/contents-rule.html.ini
+++ b/tests/wpt/meta/css/css-mixins/contents-rule.html.ini
@@ -13,3 +13,6 @@
 
   [@contents is ignored if there is no @contents parameter]
     expected: FAIL
+
+  [Empty @contents block is allowed, but does nothing]
+    expected: FAIL
diff --git a/tests/wpt/meta/css/css-mixins/dashed-function-eval.html.ini b/tests/wpt/meta/css/css-mixins/dashed-function-eval.html.ini
index 7e17ca75e05..2ac423034eb 100644
--- a/tests/wpt/meta/css/css-mixins/dashed-function-eval.html.ini
+++ b/tests/wpt/meta/css/css-mixins/dashed-function-eval.html.ini
@@ -259,3 +259,9 @@
 
   [Can not return CSS-wide keyword as length]
     expected: FAIL
+
+  [Local with the revert-rule keyword]
+    expected: FAIL
+
+  [revert-rule keyword left unresolved on result descriptor]
+    expected: FAIL
diff --git a/tests/wpt/meta/css/css-nesting/nesting-revert-rule.tentative.html.ini b/tests/wpt/meta/css/css-nesting/nesting-revert-rule.tentative.html.ini
new file mode 100644
index 00000000000..5d68ada2d00
--- /dev/null
+++ b/tests/wpt/meta/css/css-nesting/nesting-revert-rule.tentative.html.ini
@@ -0,0 +1,12 @@
+[nesting-revert-rule.tentative.html]
+  [The revert-rule keyword can revert to a nested rule]
+    expected: FAIL
+
+  [The revert-rule keyword can revert to a CSSNestedDeclarationsRule]
+    expected: FAIL
+
+  [The revert-rule keyword can revert from a CSSNestedDeclarationsRule]
+    expected: FAIL
+
+  [The revert-rule keyword can revert to scoped declarations]
+    expected: FAIL
diff --git a/tests/wpt/meta/css/css-position/position-absolute-fit-content-auto-margin.html.ini b/tests/wpt/meta/css/css-position/position-absolute-fit-content-auto-margin.html.ini
new file mode 100644
index 00000000000..d5657626c37
--- /dev/null
+++ b/tests/wpt/meta/css/css-position/position-absolute-fit-content-auto-margin.html.ini
@@ -0,0 +1,36 @@
+[position-absolute-fit-content-auto-margin.html]
+  [#tests .abspos 28]
+    expected: FAIL
+
+  [#tests .abspos 29]
+    expected: FAIL
+
+  [#tests .abspos 31]
+    expected: FAIL
+
+  [#tests .abspos 32]
+    expected: FAIL
+
+  [#tests .abspos 34]
+    expected: FAIL
+
+  [#tests .abspos 35]
+    expected: FAIL
+
+  [#tests .abspos 37]
+    expected: FAIL
+
+  [#tests .abspos 38]
+    expected: FAIL
+
+  [#tests .abspos 40]
+    expected: FAIL
+
+  [#tests .abspos 41]
+    expected: FAIL
+
+  [#tests .abspos 43]
+    expected: FAIL
+
+  [#tests .abspos 44]
+    expected: FAIL
diff --git a/tests/wpt/meta/css/css-pseudo/before-as-flex-container.html.ini b/tests/wpt/meta/css/css-pseudo/before-as-flex-container.html.ini
new file mode 100644
index 00000000000..9a7cd4bca0a
--- /dev/null
+++ b/tests/wpt/meta/css/css-pseudo/before-as-flex-container.html.ini
@@ -0,0 +1,2 @@
+[before-as-flex-container.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-text-decor/parsing/text-decoration-trim-computed.html.ini b/tests/wpt/meta/css/css-text-decor/parsing/text-decoration-trim-computed.html.ini
new file mode 100644
index 00000000000..4e6214dba8b
--- /dev/null
+++ b/tests/wpt/meta/css/css-text-decor/parsing/text-decoration-trim-computed.html.ini
@@ -0,0 +1,30 @@
+[text-decoration-trim-computed.html]
+  [Property text-decoration-trim value '0px']
+    expected: FAIL
+
+  [Property text-decoration-trim value '0']
+    expected: FAIL
+
+  [Property text-decoration-trim value '0px 0px']
+    expected: FAIL
+
+  [Property text-decoration-trim value '0.5em']
+    expected: FAIL
+
+  [Property text-decoration-trim value '-1em']
+    expected: FAIL
+
+  [Property text-decoration-trim value '-1ch -1ch']
+    expected: FAIL
+
+  [Property text-decoration-trim value '1px 2px']
+    expected: FAIL
+
+  [Property text-decoration-trim value '1ch -1ch']
+    expected: FAIL
+
+  [Property text-decoration-trim value 'calc(1em / 4) calc(-1ch)']
+    expected: FAIL
+
+  [Property text-decoration-trim value 'auto']
+    expected: FAIL
diff --git a/tests/wpt/meta/css/css-text-decor/parsing/text-decoration-trim-valid.html.ini b/tests/wpt/meta/css/css-text-decor/parsing/text-decoration-trim-valid.html.ini
new file mode 100644
index 00000000000..a984fb653fa
--- /dev/null
+++ b/tests/wpt/meta/css/css-text-decor/parsing/text-decoration-trim-valid.html.ini
@@ -0,0 +1,30 @@
+[text-decoration-trim-valid.html]
+  [e.style['text-decoration-trim'\] = "0px" should set the property value]
+    expected: FAIL
+
+  [e.style['text-decoration-trim'\] = "0" should set the property value]
+    expected: FAIL
+
+  [e.style['text-decoration-trim'\] = "0px 0px" should set the property value]
+    expected: FAIL
+
+  [e.style['text-decoration-trim'\] = "0.5em" should set the property value]
+    expected: FAIL
+
+  [e.style['text-decoration-trim'\] = "-1em" should set the property value]
+    expected: FAIL
+
+  [e.style['text-decoration-trim'\] = "-1ch -1ch" should set the property value]
+    expected: FAIL
+
+  [e.style['text-decoration-trim'\] = "1px 2px" should set the property value]
+    expected: FAIL
+
+  [e.style['text-decoration-trim'\] = "1ch -1ch" should set the property value]
+    expected: FAIL
+
+  [e.style['text-decoration-trim'\] = "calc(1em / 4) calc(-1ch)" should set the property value]
+    expected: FAIL
+
+  [e.style['text-decoration-trim'\] = "auto" should set the property value]
+    expected: FAIL
diff --git a/tests/wpt/meta/css/css-text-decor/text-decoration-trim-001.html.ini b/tests/wpt/meta/css/css-text-decor/text-decoration-trim-001.html.ini
new file mode 100644
index 00000000000..bf3da669ce3
--- /dev/null
+++ b/tests/wpt/meta/css/css-text-decor/text-decoration-trim-001.html.ini
@@ -0,0 +1,2 @@
+[text-decoration-trim-001.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-text-decor/text-decoration-trim-002.html.ini b/tests/wpt/meta/css/css-text-decor/text-decoration-trim-002.html.ini
new file mode 100644
index 00000000000..828c8a04e66
--- /dev/null
+++ b/tests/wpt/meta/css/css-text-decor/text-decoration-trim-002.html.ini
@@ -0,0 +1,2 @@
+[text-decoration-trim-002.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-text-decor/text-decoration-trim-003.html.ini b/tests/wpt/meta/css/css-text-decor/text-decoration-trim-003.html.ini
new file mode 100644
index 00000000000..d952e267f89
--- /dev/null
+++ b/tests/wpt/meta/css/css-text-decor/text-decoration-trim-003.html.ini
@@ -0,0 +1,2 @@
+[text-decoration-trim-003.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-text-decor/text-decoration-trim-004.html.ini b/tests/wpt/meta/css/css-text-decor/text-decoration-trim-004.html.ini
new file mode 100644
index 00000000000..eb94f257587
--- /dev/null
+++ b/tests/wpt/meta/css/css-text-decor/text-decoration-trim-004.html.ini
@@ -0,0 +1,2 @@
+[text-decoration-trim-004.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-text-decor/text-decoration-trim-005.html.ini b/tests/wpt/meta/css/css-text-decor/text-decoration-trim-005.html.ini
new file mode 100644
index 00000000000..2e67d5514a8
--- /dev/null
+++ b/tests/wpt/meta/css/css-text-decor/text-decoration-trim-005.html.ini
@@ -0,0 +1,2 @@
+[text-decoration-trim-005.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-text-decor/text-decoration-trim-006.html.ini b/tests/wpt/meta/css/css-text-decor/text-decoration-trim-006.html.ini
new file mode 100644
index 00000000000..824e6e64794
--- /dev/null
+++ b/tests/wpt/meta/css/css-text-decor/text-decoration-trim-006.html.ini
@@ -0,0 +1,2 @@
+[text-decoration-trim-006.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-text-decor/text-decoration-trim-007.html.ini b/tests/wpt/meta/css/css-text-decor/text-decoration-trim-007.html.ini
new file mode 100644
index 00000000000..d5a68d4d83f
--- /dev/null
+++ b/tests/wpt/meta/css/css-text-decor/text-decoration-trim-007.html.ini
@@ -0,0 +1,2 @@
+[text-decoration-trim-007.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-text-decor/text-decoration-trim-008.html.ini b/tests/wpt/meta/css/css-text-decor/text-decoration-trim-008.html.ini
new file mode 100644
index 00000000000..c4204f785cc
--- /dev/null
+++ b/tests/wpt/meta/css/css-text-decor/text-decoration-trim-008.html.ini
@@ -0,0 +1,2 @@
+[text-decoration-trim-008.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-text-decor/text-decoration-trim-009.html.ini b/tests/wpt/meta/css/css-text-decor/text-decoration-trim-009.html.ini
new file mode 100644
index 00000000000..8ca2fb55477
--- /dev/null
+++ b/tests/wpt/meta/css/css-text-decor/text-decoration-trim-009.html.ini
@@ -0,0 +1,2 @@
+[text-decoration-trim-009.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-text-decor/text-decoration-trim-010.html.ini b/tests/wpt/meta/css/css-text-decor/text-decoration-trim-010.html.ini
new file mode 100644
index 00000000000..025af883538
--- /dev/null
+++ b/tests/wpt/meta/css/css-text-decor/text-decoration-trim-010.html.ini
@@ -0,0 +1,2 @@
+[text-decoration-trim-010.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-text-decor/text-decoration-trim-011.html.ini b/tests/wpt/meta/css/css-text-decor/text-decoration-trim-011.html.ini
new file mode 100644
index 00000000000..3c1f5690828
--- /dev/null
+++ b/tests/wpt/meta/css/css-text-decor/text-decoration-trim-011.html.ini
@@ -0,0 +1,2 @@
+[text-decoration-trim-011.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-text-decor/text-decoration-trim-012.html.ini b/tests/wpt/meta/css/css-text-decor/text-decoration-trim-012.html.ini
new file mode 100644
index 00000000000..6769fba45ce
--- /dev/null
+++ b/tests/wpt/meta/css/css-text-decor/text-decoration-trim-012.html.ini
@@ -0,0 +1,2 @@
+[text-decoration-trim-012.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-text-decor/text-decoration-trim-013.html.ini b/tests/wpt/meta/css/css-text-decor/text-decoration-trim-013.html.ini
new file mode 100644
index 00000000000..761caefc46d
--- /dev/null
+++ b/tests/wpt/meta/css/css-text-decor/text-decoration-trim-013.html.ini
@@ -0,0 +1,2 @@
+[text-decoration-trim-013.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-text-decor/text-decoration-trim-014.html.ini b/tests/wpt/meta/css/css-text-decor/text-decoration-trim-014.html.ini
new file mode 100644
index 00000000000..c43007597c2
--- /dev/null
+++ b/tests/wpt/meta/css/css-text-decor/text-decoration-trim-014.html.ini
@@ -0,0 +1,2 @@
+[text-decoration-trim-014.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-text-decor/text-decoration-trim-015.html.ini b/tests/wpt/meta/css/css-text-decor/text-decoration-trim-015.html.ini
new file mode 100644
index 00000000000..97df63b3f95
--- /dev/null
+++ b/tests/wpt/meta/css/css-text-decor/text-decoration-trim-015.html.ini
@@ -0,0 +1,2 @@
+[text-decoration-trim-015.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-text-decor/text-decoration-trim-016.html.ini b/tests/wpt/meta/css/css-text-decor/text-decoration-trim-016.html.ini
new file mode 100644
index 00000000000..288c46bdc9d
--- /dev/null
+++ b/tests/wpt/meta/css/css-text-decor/text-decoration-trim-016.html.ini
@@ -0,0 +1,2 @@
+[text-decoration-trim-016.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-text/text-indent/below-float3.html.ini b/tests/wpt/meta/css/css-text/text-indent/below-float3.html.ini
new file mode 100644
index 00000000000..f500e2a2191
--- /dev/null
+++ b/tests/wpt/meta/css/css-text/text-indent/below-float3.html.ini
@@ -0,0 +1,2 @@
+[below-float3.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-values/attr-all-types.html.ini b/tests/wpt/meta/css/css-values/attr-all-types.html.ini
index 4ff0064ac41..73d666fce7c 100644
--- a/tests/wpt/meta/css/css-values/attr-all-types.html.ini
+++ b/tests/wpt/meta/css/css-values/attr-all-types.html.ini
@@ -23,24 +23,12 @@
   [CSS Values and Units Test: attr 11]
     expected: FAIL
 
-  [CSS Values and Units Test: attr 13]
-    expected: FAIL
-
   [CSS Values and Units Test: attr 18]
     expected: FAIL
 
   [CSS Values and Units Test: attr 21]
     expected: FAIL
 
-  [CSS Values and Units Test: attr 12]
-    expected: FAIL
-
-  [CSS Values and Units Test: attr 17]
-    expected: FAIL
-
-  [CSS Values and Units Test: attr 20]
-    expected: FAIL
-
   [CSS Values and Units Test: attr 24]
     expected: FAIL
 
@@ -74,12 +62,6 @@
   [CSS Values and Units Test: attr 45]
     expected: FAIL
 
-  [CSS Values and Units Test: attr 46]
-    expected: FAIL
-
-  [CSS Values and Units Test: attr 47]
-    expected: FAIL
-
   [CSS Values and Units Test: attr 48]
     expected: FAIL
 
@@ -119,15 +101,9 @@
   [CSS Values and Units Test: attr 64]
     expected: FAIL
 
-  [CSS Values and Units Test: attr 65]
-    expected: FAIL
-
   [CSS Values and Units Test: attr 66]
     expected: FAIL
 
-  [CSS Values and Units Test: attr 67]
-    expected: FAIL
-
   [CSS Values and Units Test: attr 68]
     expected: FAIL
 
@@ -167,9 +143,6 @@
   [CSS Values and Units Test: attr 33]
     expected: FAIL
 
-  [CSS Values and Units Test: attr 49]
-    expected: FAIL
-
   [CSS Values and Units Test: attr 79]
     expected: FAIL
 
@@ -185,15 +158,6 @@
   [CSS Values and Units Test: attr 8]
     expected: FAIL
 
-  [CSS Values and Units Test: attr 19]
-    expected: FAIL
-
-  [CSS Values and Units Test: attr 34]
-    expected: FAIL
-
-  [CSS Values and Units Test: attr 37]
-    expected: FAIL
-
   [CSS Values and Units Test: attr 53]
     expected: FAIL
 
@@ -203,9 +167,6 @@
   [CSS Values and Units Test: attr 35]
     expected: FAIL
 
-  [CSS Values and Units Test: attr 36]
-    expected: FAIL
-
   [CSS Values and Units Test: attr 38]
     expected: FAIL
 
@@ -230,14 +191,71 @@
   [CSS Values and Units Test: attr 89]
     expected: FAIL
 
-  [CSS Values and Units Test: attr 98]
+  [CSS Values and Units Test: attr 9]
     expected: FAIL
 
-  [CSS Values and Units Test: attr 99]
+  [CSS Values and Units Test: attr 10]
     expected: FAIL
 
-  [CSS Values and Units Test: attr 100]
+  [CSS Values and Units Test: attr 14]
     expected: FAIL
 
-  [CSS Values and Units Test: attr 101]
+  [CSS Values and Units Test: attr 15]
+    expected: FAIL
+
+  [CSS Values and Units Test: attr 16]
+    expected: FAIL
+
+  [CSS Values and Units Test: attr 30]
+    expected: FAIL
+
+  [CSS Values and Units Test: attr 31]
+    expected: FAIL
+
+  [CSS Values and Units Test: attr 32]
+    expected: FAIL
+
+  [CSS Values and Units Test: attr 41]
+    expected: FAIL
+
+  [CSS Values and Units Test: attr 42]
+    expected: FAIL
+
+  [CSS Values and Units Test: attr 44]
+    expected: FAIL
+
+  [CSS Values and Units Test: attr 60]
+    expected: FAIL
+
+  [CSS Values and Units Test: attr 90]
+    expected: FAIL
+
+  [CSS Values and Units Test: attr 91]
+    expected: FAIL
+
+  [CSS Values and Units Test: attr 92]
+    expected: FAIL
+
+  [CSS Values and Units Test: attr 93]
+    expected: FAIL
+
+  [CSS Values and Units Test: attr 94]
+    expected: FAIL
+
+  [CSS Values and Units Test: attr 95]
+    expected: FAIL
+
+  [CSS Values and Units Test: attr 96]
+    expected: FAIL
+
+  [CSS Values and Units Test: attr 105]
+    expected: FAIL
+
+  [CSS Values and Units Test: attr 106]
+    expected: FAIL
+
+  [CSS Values and Units Test: attr 107]
+    expected: FAIL
+
+  [CSS Values and Units Test: attr 108]
     expected: FAIL
diff --git a/tests/wpt/meta/css/css-values/attr-revert-rule.tentative.html.ini b/tests/wpt/meta/css/css-values/attr-revert-rule.tentative.html.ini
new file mode 100644
index 00000000000..eadb91297d0
--- /dev/null
+++ b/tests/wpt/meta/css/css-values/attr-revert-rule.tentative.html.ini
@@ -0,0 +1,3 @@
+[attr-revert-rule.tentative.html]
+  [The revert-rule works in an attr() fallback]
+    expected: FAIL
diff --git a/tests/wpt/meta/css/css-values/if-function-revert-rule.tentative.html.ini b/tests/wpt/meta/css/css-values/if-function-revert-rule.tentative.html.ini
new file mode 100644
index 00000000000..ea488c1a677
--- /dev/null
+++ b/tests/wpt/meta/css/css-values/if-function-revert-rule.tentative.html.ini
@@ -0,0 +1,6 @@
+[if-function-revert-rule.tentative.html]
+  [The revert-rule works as a branch in if()]
+    expected: FAIL
+
+  [The revert-rule works as a branch in if(), earlier return]
+    expected: FAIL
diff --git a/tests/wpt/meta/css/css-variables/revert-rule-in-fallback.tentative.html.ini b/tests/wpt/meta/css/css-variables/revert-rule-in-fallback.tentative.html.ini
new file mode 100644
index 00000000000..6ddf16f1ff9
--- /dev/null
+++ b/tests/wpt/meta/css/css-variables/revert-rule-in-fallback.tentative.html.ini
@@ -0,0 +1,12 @@
+[revert-rule-in-fallback.tentative.html]
+  [var(--unknown, revert-rule) in custom property]
+    expected: FAIL
+
+  [var(--unknown, revert-rule) in shorthand]
+    expected: FAIL
+
+  [var(--unknown, revert-rule) in shorthand observed via longhand]
+    expected: FAIL
+
+  [var(--unknown, revert-rule) in longhand]
+    expected: FAIL
diff --git a/tests/wpt/meta/css/css-variables/revert-rule-to-var.tentative.html.ini b/tests/wpt/meta/css/css-variables/revert-rule-to-var.tentative.html.ini
new file mode 100644
index 00000000000..a47ba8dd494
--- /dev/null
+++ b/tests/wpt/meta/css/css-variables/revert-rule-to-var.tentative.html.ini
@@ -0,0 +1,3 @@
+[revert-rule-to-var.tentative.html]
+  [Using revert-rule to revert to a value containing var()]
+    expected: FAIL
diff --git a/tests/wpt/meta/css/mediaqueries/preferences-colorScheme.tentative.https.html.ini b/tests/wpt/meta/css/mediaqueries/preferences-colorScheme.tentative.https.html.ini
new file mode 100644
index 00000000000..55e4517deb5
--- /dev/null
+++ b/tests/wpt/meta/css/mediaqueries/preferences-colorScheme.tentative.https.html.ini
@@ -0,0 +1,40 @@
+[preferences-colorScheme.tentative.https.html]
+  expected: ERROR
+  [navigator.preferences.colorScheme supported]
+    expected: FAIL
+
+  [navigator.preferences.colorScheme.override supported]
+    expected: FAIL
+
+  [navigator.preferences.colorScheme.value supported]
+    expected: FAIL
+
+  [navigator.preferences.colorScheme.validValues supported]
+    expected: FAIL
+
+  [navigator.preferences.colorScheme.requestOverride() with invalid value throws]
+    expected: NOTRUN
+
+  [navigator.preferences.colorScheme.override returns override value]
+    expected: NOTRUN
+
+  [navigator.preferences.colorScheme.requestOverride(null) works like clearOverride()]
+    expected: NOTRUN
+
+  [navigator.preferences.colorScheme.requestOverride('') works like clearOverride()]
+    expected: NOTRUN
+
+  [navigator.preferences.colorScheme.requestOverride() updates (prefers-color-scheme)]
+    expected: NOTRUN
+
+  [navigator.preferences.colorScheme fires change event when requesting override]
+    expected: FAIL
+
+  [navigator.preferences.colorScheme fires change event when requesting override (without value change)]
+    expected: NOTRUN
+
+  [navigator.preferences.colorScheme fires change event when clearing override]
+    expected: NOTRUN
+
+  [navigator.preferences.colorScheme fires change event when clearing override (without value change)]
+    expected: NOTRUN
diff --git a/tests/wpt/meta/css/mediaqueries/preferences-contrast.tentative.https.html.ini b/tests/wpt/meta/css/mediaqueries/preferences-contrast.tentative.https.html.ini
new file mode 100644
index 00000000000..1e781f9b3cd
--- /dev/null
+++ b/tests/wpt/meta/css/mediaqueries/preferences-contrast.tentative.https.html.ini
@@ -0,0 +1,43 @@
+[preferences-contrast.tentative.https.html]
+  expected: ERROR
+  [navigator.preferences.contrast supported]
+    expected: FAIL
+
+  [navigator.preferences.contrast.override supported]
+    expected: FAIL
+
+  [navigator.preferences.contrast.value supported]
+    expected: FAIL
+
+  [navigator.preferences.contrast.validValues supported]
+    expected: FAIL
+
+  [navigator.preferences.contrast.requestOverride() with invalid value throws]
+    expected: NOTRUN
+
+  [navigator.preferences.contrast.requestOverride('custom') throws]
+    expected: NOTRUN
+
+  [navigator.preferences.contrast.clearOverride() works]
+    expected: NOTRUN
+
+  [navigator.preferences.contrast.requestOverride(null) works like clearOverride()]
+    expected: NOTRUN
+
+  [navigator.preferences.contrast.requestOverride('') works like clearOverride()]
+    expected: NOTRUN
+
+  [navigator.preferences.contrast.requestOverride() updates (prefers-contrast)]
+    expected: NOTRUN
+
+  [navigator.preferences.contrast fires change event when requesting override]
+    expected: FAIL
+
+  [navigator.preferences.contrast fires change event when requesting override (without value change)]
+    expected: NOTRUN
+
+  [navigator.preferences.contrast fires change event when clearing override]
+    expected: NOTRUN
+
+  [navigator.preferences.contrast fires change event when clearing override (without value change)]
+    expected: NOTRUN
diff --git a/tests/wpt/meta/css/mediaqueries/preferences-reducedData.tentative.https.html.ini b/tests/wpt/meta/css/mediaqueries/preferences-reducedData.tentative.https.html.ini
new file mode 100644
index 00000000000..9c464a67b47
--- /dev/null
+++ b/tests/wpt/meta/css/mediaqueries/preferences-reducedData.tentative.https.html.ini
@@ -0,0 +1,40 @@
+[preferences-reducedData.tentative.https.html]
+  expected: ERROR
+  [navigator.preferences.reducedData supported]
+    expected: FAIL
+
+  [navigator.preferences.reducedData.override supported]
+    expected: FAIL
+
+  [navigator.preferences.reducedData.value supported]
+    expected: FAIL
+
+  [navigator.preferences.reducedData.validValues supported]
+    expected: FAIL
+
+  [navigator.preferences.reducedData.requestOverride() with invalid value throws]
+    expected: NOTRUN
+
+  [navigator.preferences.reducedData.clearOverride() supported]
+    expected: NOTRUN
+
+  [navigator.preferences.reducedData.requestOverride(null) works like clearOverride()]
+    expected: NOTRUN
+
+  [navigator.preferences.reducedData.requestOverride('') works like clearOverride()]
+    expected: NOTRUN
+
+  [navigator.preferences.reducedData.requestOverride() updates (prefers-reduced-data)]
+    expected: NOTRUN
+
+  [navigator.preferences.reducedData fires change event when requesting override]
+    expected: FAIL
+
+  [navigator.preferences.reducedData fires change event when requesting override (without value change)]
+    expected: NOTRUN
+
+  [navigator.preferences.reducedData fires change event when clearing override]
+    expected: NOTRUN
+
+  [navigator.preferences.reducedData fires change event when clearing override (without value change)]
+    expected: NOTRUN
diff --git a/tests/wpt/meta/css/mediaqueries/preferences-reducedMotion.tentative.https.html.ini b/tests/wpt/meta/css/mediaqueries/preferences-reducedMotion.tentative.https.html.ini
new file mode 100644
index 00000000000..586dd1f8b42
--- /dev/null
+++ b/tests/wpt/meta/css/mediaqueries/preferences-reducedMotion.tentative.https.html.ini
@@ -0,0 +1,40 @@
+[preferences-reducedMotion.tentative.https.html]
+  expected: ERROR
+  [navigator.preferences.reducedMotion supported]
+    expected: FAIL
+
+  [navigator.preferences.reducedMotion.override supported]
+    expected: FAIL
+
+  [navigator.preferences.reducedMotion.value supported]
+    expected: FAIL
+
+  [navigator.preferences.reducedMotion.validValues supported]
+    expected: FAIL
+
+  [navigator.preferences.reducedMotion.requestOverride() with invalid value throws]
+    expected: NOTRUN
+
+  [navigator.preferences.reducedMotion.clearOverride() supported]
+    expected: NOTRUN
+
+  [navigator.preferences.reducedMotion.requestOverride(null) works like clearOverride()]
+    expected: NOTRUN
+
+  [navigator.preferences.reducedMotion.requestOverride('') works like clearOverride()]
+    expected: NOTRUN
+
+  [navigator.preferences.reducedMotion.requestOverride() updates (prefers-reduced-motion)]
+    expected: NOTRUN
+
+  [navigator.preferences.reducedMotion fires change event when requesting override]
+    expected: FAIL
+
+  [navigator.preferences.reducedMotion fires change event when requesting override (without value change)]
+    expected: NOTRUN
+
+  [navigator.preferences.reducedMotion fires change event when clearing override]
+    expected: NOTRUN
+
+  [navigator.preferences.reducedMotion fires change event when clearing override (without value change)]
+    expected: NOTRUN
diff --git a/tests/wpt/meta/css/mediaqueries/preferences-reducedTransparency.tentative.https.html.ini b/tests/wpt/meta/css/mediaqueries/preferences-reducedTransparency.tentative.https.html.ini
new file mode 100644
index 00000000000..01b11c141e1
--- /dev/null
+++ b/tests/wpt/meta/css/mediaqueries/preferences-reducedTransparency.tentative.https.html.ini
@@ -0,0 +1,40 @@
+[preferences-reducedTransparency.tentative.https.html]
+  expected: ERROR
+  [navigator.preferences.reducedTransparency supported]
+    expected: FAIL
+
+  [navigator.preferences.reducedTransparency.override supported]
+    expected: FAIL
+
+  [navigator.preferences.reducedTransparency.value supported]
+    expected: FAIL
+
+  [navigator.preferences.reducedTransparency.validValues supported]
+    expected: FAIL
+
+  [navigator.preferences.reducedTransparency.requestOverride() with invalid value throws]
+    expected: NOTRUN
+
+  [navigator.preferences.reducedTransparency.clearOverride() supported]
+    expected: NOTRUN
+
+  [navigator.preferences.reducedTransparency.requestOverride(null) works like clearOverride()]
+    expected: NOTRUN
+
+  [navigator.preferences.reducedTransparency.requestOverride('') works like clearOverride()]
+    expected: NOTRUN
+
+  [navigator.preferences.reducedTransparency.requestOverride() updates (prefers-reduced-transparency)]
+    expected: NOTRUN
+
+  [navigator.preferences.reducedTransparency fires change event when requesting override]
+    expected: FAIL
+
+  [navigator.preferences.reducedTransparency fires change event when requesting override (without value change)]
+    expected: NOTRUN
+
+  [navigator.preferences.reducedTransparency fires change event when clearing override]
+    expected: NOTRUN
+
+  [navigator.preferences.reducedTransparency fires change event when clearing override (without value change)]
+    expected: NOTRUN
diff --git a/tests/wpt/meta/dom/observable/tentative/observable-constructor.any.js.ini b/tests/wpt/meta/dom/observable/tentative/observable-constructor.any.js.ini
index f6fc12bc3a4..894b612d966 100644
--- a/tests/wpt/meta/dom/observable/tentative/observable-constructor.any.js.ini
+++ b/tests/wpt/meta/dom/observable/tentative/observable-constructor.any.js.ini
@@ -128,6 +128,9 @@
   [Teardown runs after last unsubscribe regardless of unsubscription order]
     expected: FAIL
 
+  [Subscriber iterates over a snapshot of its internal observers]
+    expected: FAIL
+
 
 [observable-constructor.any.html]
   [Observable constructor]
@@ -258,3 +261,6 @@
 
   [Teardown runs after last unsubscribe regardless of unsubscription order]
     expected: FAIL
+
+  [Subscriber iterates over a snapshot of its internal observers]
+    expected: FAIL
diff --git a/tests/wpt/meta/fetch/fetch-later/basic.tentative.https.window.js.ini b/tests/wpt/meta/fetch/fetch-later/basic.tentative.https.window.js.ini
index 3fa86d89b2d..5b94a641e8c 100644
--- a/tests/wpt/meta/fetch/fetch-later/basic.tentative.https.window.js.ini
+++ b/tests/wpt/meta/fetch/fetch-later/basic.tentative.https.window.js.ini
@@ -22,3 +22,54 @@
 
   [fetchLater() throws RangeError on negative activateAfter.]
     expected: FAIL
+
+  [fetchLater() with same-origin (https) URL does not throw.]
+    expected: FAIL
+
+  [fetchLater() with http://localhost URL does not throw.]
+    expected: FAIL
+
+  [fetchLater() with https://localhost URL does not throw.]
+    expected: FAIL
+
+  [fetchLater() with http://127.0.0.1 URL does not throw.]
+    expected: FAIL
+
+  [fetchLater() with https://127.0.0.1 URL does not throw.]
+    expected: FAIL
+
+  [fetchLater() with http://[::1\] URL does not throw.]
+    expected: FAIL
+
+  [fetchLater() with https://[::1\] URL does not throw.]
+    expected: FAIL
+
+  [fetchLater() with https://example.com URL does not throw.]
+    expected: FAIL
+
+  [fetchLater() throws SecurityError on non-trustworthy http URL.]
+    expected: FAIL
+
+  [fetchLater() throws TypeError on file:// scheme.]
+    expected: FAIL
+
+  [fetchLater() throws TypeError on ftp:// scheme.]
+    expected: FAIL
+
+  [fetchLater() throws TypeError on ssh:// scheme.]
+    expected: FAIL
+
+  [fetchLater() throws TypeError on wss:// scheme.]
+    expected: FAIL
+
+  [fetchLater() throws TypeError on about: scheme.]
+    expected: FAIL
+
+  [fetchLater() throws TypeError on javascript: scheme.]
+    expected: FAIL
+
+  [fetchLater() throws TypeError on data: scheme.]
+    expected: FAIL
+
+  [fetchLater() throws TypeError on blob: scheme.]
+    expected: FAIL
diff --git a/tests/wpt/meta/fetch/private-network-access/anchor.tentative.https.window.js.ini b/tests/wpt/meta/fetch/private-network-access/anchor.tentative.https.window.js.ini
deleted file mode 100644
index 5128f61c8b3..00000000000
--- a/tests/wpt/meta/fetch/private-network-access/anchor.tentative.https.window.js.ini
+++ /dev/null
@@ -1,51 +0,0 @@
-[anchor.tentative.https.window.html?include=from-treat-as-public]
-  [treat-as-public-address to local: success.]
-    expected: FAIL
-
-  [treat-as-public-address to private: success.]
-    expected: FAIL
-
-  [treat-as-public-address to local (same-origin): no preflight required.]
-    expected: FAIL
-
-  [treat-as-public-address to public: no preflight required.]
-    expected: FAIL
-
-
-[anchor.tentative.https.window.html?include=from-public]
-  [public to local: success.]
-    expected: FAIL
-
-  [public to private: success.]
-    expected: FAIL
-
-  [public to public redirected to private: missing CORS headers.]
-    expected: FAIL
-
-  [public to public to private: success.]
-    expected: FAIL
-
-  [public to public: no preflight required.]
-    expected: FAIL
-
-
-[anchor.tentative.https.window.html?include=from-local]
-  [local to local: no preflight required.]
-    expected: FAIL
-
-  [local to private: no preflight required.]
-    expected: FAIL
-
-  [local to public: no preflight required.]
-    expected: FAIL
-
-
-[anchor.tentative.https.window.html?include=from-private]
-  [private to local: success.]
-    expected: FAIL
-
-  [private to private: no preflight required.]
-    expected: FAIL
-
-  [private to public: no preflight required.]
-    expected: FAIL
diff --git a/tests/wpt/meta/fetch/private-network-access/anchor.tentative.window.js.ini b/tests/wpt/meta/fetch/private-network-access/anchor.tentative.window.js.ini
deleted file mode 100644
index 2514008bd5c..00000000000
--- a/tests/wpt/meta/fetch/private-network-access/anchor.tentative.window.js.ini
+++ /dev/null
@@ -1,21 +0,0 @@
-[anchor.tentative.window.html]
-  [local to local: no preflight required.]
-    expected: FAIL
-
-  [local to private: no preflight required.]
-    expected: FAIL
-
-  [local to public: no preflight required.]
-    expected: FAIL
-
-  [private to private: no preflight required.]
-    expected: FAIL
-
-  [private to public: no preflight required.]
-    expected: FAIL
-
-  [public to public: no preflight required.]
-    expected: FAIL
-
-  [treat-as-public-address to public: no preflight required.]
-    expected: FAIL
diff --git a/tests/wpt/meta/fetch/private-network-access/fetch-from-treat-as-public.tentative.https.window.js.ini b/tests/wpt/meta/fetch/private-network-access/fetch-from-treat-as-public.tentative.https.window.js.ini
deleted file mode 100644
index b9b3441c1a2..00000000000
--- a/tests/wpt/meta/fetch/private-network-access/fetch-from-treat-as-public.tentative.https.window.js.ini
+++ /dev/null
@@ -1,9 +0,0 @@
-[fetch-from-treat-as-public.tentative.https.window.html]
-  [treat-as-public-address to local: failed preflight.]
-    expected: FAIL
-
-  [treat-as-public-address to local: success.]
-    expected: FAIL
-
-  [treat-as-public-address to private: failed preflight.]
-    expected: FAIL
diff --git a/tests/wpt/meta/fetch/private-network-access/fetch.tentative.https.window.js.ini b/tests/wpt/meta/fetch/private-network-access/fetch.tentative.https.window.js.ini
deleted file mode 100644
index a2157380373..00000000000
--- a/tests/wpt/meta/fetch/private-network-access/fetch.tentative.https.window.js.ini
+++ /dev/null
@@ -1,81 +0,0 @@
-[fetch.tentative.https.window.html?include=baseline]
-  [local to public: PUT preflight failure.]
-    expected: FAIL
-
-
-[fetch.tentative.https.window.html?include=from-local]
-
-[fetch.tentative.https.window.html?include=from-private]
-  [private to local: failed preflight.]
-    expected: FAIL
-
-  [private to local: missing CORS headers on preflight response.]
-    expected: FAIL
-
-  [private to local: missing PNA header on preflight response.]
-    expected: FAIL
-
-  [private to local: missing CORS headers on final response.]
-    expected: FAIL
-
-  [private to local: success.]
-    expected: FAIL
-
-  [private to local: no-CORS mode failed preflight.]
-    expected: FAIL
-
-  [private to local: no-CORS mode missing CORS headers on preflight response.]
-    expected: FAIL
-
-  [private to local: no-CORS mode missing PNA header on preflight response.]
-    expected: FAIL
-
-
-[fetch.tentative.https.window.html?include=from-public]
-  [public to local: failed preflight.]
-    expected: FAIL
-
-  [public to local: missing CORS headers on preflight response.]
-    expected: FAIL
-
-  [public to local: missing PNA header on preflight response.]
-    expected: FAIL
-
-  [public to local: missing CORS headers on final response.]
-    expected: FAIL
-
-  [public to local: success.]
-    expected: FAIL
-
-  [public to local: no-CORS mode failed preflight.]
-    expected: FAIL
-
-  [public to local: no-CORS mode missing CORS headers on preflight response.]
-    expected: FAIL
-
-  [public to local: no-CORS mode missing PNA header on preflight response.]
-    expected: FAIL
-
-  [public to private: failed preflight.]
-    expected: FAIL
-
-  [public to private: missing CORS headers on preflight response.]
-    expected: FAIL
-
-  [public to private: missing PNA header on preflight response.]
-    expected: FAIL
-
-  [public to private: missing CORS headers on final response.]
-    expected: FAIL
-
-  [public to private: success.]
-    expected: FAIL
-
-  [public to private: no-CORS mode failed preflight.]
-    expected: FAIL
-
-  [public to private: no-CORS mode missing CORS headers on preflight response.]
-    expected: FAIL
-
-  [public to private: no-CORS mode missing PNA header on preflight response.]
-    expected: FAIL
diff --git a/tests/wpt/meta/fetch/private-network-access/fetch.tentative.window.js.ini b/tests/wpt/meta/fetch/private-network-access/fetch.tentative.window.js.ini
deleted file mode 100644
index 08facf481f6..00000000000
--- a/tests/wpt/meta/fetch/private-network-access/fetch.tentative.window.js.ini
+++ /dev/null
@@ -1,24 +0,0 @@
-[fetch.tentative.window.html]
-  [private to local: failure.]
-    expected: FAIL
-
-  [public to local: failure.]
-    expected: FAIL
-
-  [public to private: failure.]
-    expected: FAIL
-
-  [treat-as-public-address to local: failure.]
-    expected: FAIL
-
-  [treat-as-public-address to private: failure.]
-    expected: FAIL
-
-  [private https to local: failure.]
-    expected: FAIL
-
-  [public https to local: failure.]
-    expected: FAIL
-
-  [public https to private: failure.]
-    expected: FAIL
diff --git a/tests/wpt/meta/fetch/private-network-access/iframe.tentative.https.window.js.ini b/tests/wpt/meta/fetch/private-network-access/iframe.tentative.https.window.js.ini
deleted file mode 100644
index 3779f2ebdd6..00000000000
--- a/tests/wpt/meta/fetch/private-network-access/iframe.tentative.https.window.js.ini
+++ /dev/null
@@ -1,62 +0,0 @@
-[iframe.tentative.https.window.html?include=from-treat-as-public]
-  [treat-as-public-address to local: success.]
-    expected: FAIL
-
-  [treat-as-public-address to private: success.]
-    expected: FAIL
-
-  [treat-as-public-address to local (same-origin): no preflight required.]
-    expected: FAIL
-
-  [treat-as-public-address to public: no preflight required.]
-    expected: FAIL
-
-  [treat-as-public-address to local: optional preflight]
-    expected: FAIL
-
-
-[iframe.tentative.https.window.html?include=from-local]
-  [local to local: no preflight required.]
-    expected: FAIL
-
-  [local to private: no preflight required.]
-    expected: FAIL
-
-  [local to public: no preflight required.]
-    expected: FAIL
-
-
-[iframe.tentative.https.window.html?include=from-public]
-  [public to local: success.]
-    expected: FAIL
-
-  [public to private: success.]
-    expected: FAIL
-
-  [public to public: no preflight required.]
-    expected: FAIL
-
-
-[iframe.tentative.https.window.html?include=grandparent]
-  [public to local, grandparent navigates: failure.]
-    expected: FAIL
-
-  [public to local, grandparent navigates: success.]
-    expected: FAIL
-
-  [local to local, grandparent navigates: no preflight required.]
-    expected: FAIL
-
-  [local to local (same-origin), grandparent navigates: no preflight required.]
-    expected: FAIL
-
-
-[iframe.tentative.https.window.html?include=from-private]
-  [private to local: success.]
-    expected: FAIL
-
-  [private to private: no preflight required.]
-    expected: FAIL
-
-  [private to public: no preflight required.]
-    expected: FAIL
diff --git a/tests/wpt/meta/fetch/private-network-access/iframe.tentative.window.js.ini b/tests/wpt/meta/fetch/private-network-access/iframe.tentative.window.js.ini
deleted file mode 100644
index 5ee0ab9073a..00000000000
--- a/tests/wpt/meta/fetch/private-network-access/iframe.tentative.window.js.ini
+++ /dev/null
@@ -1,24 +0,0 @@
-[iframe.tentative.window.html]
-  [local to local: no preflight required.]
-    expected: FAIL
-
-  [local to private: no preflight required.]
-    expected: FAIL
-
-  [local to public: no preflight required.]
-    expected: FAIL
-
-  [private to private: no preflight required.]
-    expected: FAIL
-
-  [private to public: no preflight required.]
-    expected: FAIL
-
-  [public to public: no preflight required.]
-    expected: FAIL
-
-  [treat-as-public-address to public: no preflight required.]
-    expected: FAIL
-
-  [local to local, grandparent navigates: success.]
-    expected: FAIL
diff --git a/tests/wpt/meta/fetch/private-network-access/nested-worker.tentative.https.window.js.ini b/tests/wpt/meta/fetch/private-network-access/nested-worker.tentative.https.window.js.ini
deleted file mode 100644
index 334ebe21b84..00000000000
--- a/tests/wpt/meta/fetch/private-network-access/nested-worker.tentative.https.window.js.ini
+++ /dev/null
@@ -1,6 +0,0 @@
-[nested-worker.tentative.https.window.html]
-  [treat-as-public to local: failure.]
-    expected: FAIL
-
-  [treat-as-public to private: failure.]
-    expected: FAIL
diff --git a/tests/wpt/meta/fetch/private-network-access/nested-worker.tentative.window.js.ini b/tests/wpt/meta/fetch/private-network-access/nested-worker.tentative.window.js.ini
deleted file mode 100644
index 97774a3eaa7..00000000000
--- a/tests/wpt/meta/fetch/private-network-access/nested-worker.tentative.window.js.ini
+++ /dev/null
@@ -1,6 +0,0 @@
-[nested-worker.tentative.window.html]
-  [treat-as-public to local: failure.]
-    expected: FAIL
-
-  [treat-as-public to private: failure.]
-    expected: FAIL
diff --git a/tests/wpt/meta/fetch/private-network-access/preflight-cache.https.tentative.window.js.ini b/tests/wpt/meta/fetch/private-network-access/preflight-cache.https.tentative.window.js.ini
deleted file mode 100644
index dcc8ba02b9b..00000000000
--- a/tests/wpt/meta/fetch/private-network-access/preflight-cache.https.tentative.window.js.ini
+++ /dev/null
@@ -1,9 +0,0 @@
-[preflight-cache.https.tentative.window.html]
-  [private to local: success.]
-    expected: FAIL
-
-  [public to local: success.]
-    expected: FAIL
-
-  [public to private: success.]
-    expected: FAIL
diff --git a/tests/wpt/meta/fetch/private-network-access/redirect.tentative.https.window.js.ini b/tests/wpt/meta/fetch/private-network-access/redirect.tentative.https.window.js.ini
deleted file mode 100644
index a66d40295ad..00000000000
--- a/tests/wpt/meta/fetch/private-network-access/redirect.tentative.https.window.js.ini
+++ /dev/null
@@ -1,69 +0,0 @@
-[redirect.tentative.https.window.html]
-  [private to private to local: failed preflight.]
-    expected: FAIL
-
-  [private to private to local: success.]
-    expected: FAIL
-
-  [private to local to private: failed preflight.]
-    expected: FAIL
-
-  [private to local to private: success.]
-    expected: FAIL
-
-  [public to private to local: failed first preflight.]
-    expected: FAIL
-
-  [public to private to local: failed second preflight.]
-    expected: FAIL
-
-  [public to private to local: success.]
-    expected: FAIL
-
-  [treat-as-public to local to private: failed first preflight.]
-    expected: FAIL
-
-  [treat-as-public to local to private: failed second preflight.]
-    expected: FAIL
-
-  [treat-as-public to local to private: success.]
-    expected: FAIL
-
-  [treat-as-public to local to private: no-cors failed first preflight.]
-    expected: FAIL
-
-  [treat-as-public to local to private: no-cors failed second preflight.]
-    expected: FAIL
-
-  [treat-as-public to local (same-origin) to private: failed second preflight.]
-    expected: FAIL
-
-  [treat-as-public to local (same-origin) to private: success.]
-    expected: FAIL
-
-  [treat-as-public to local (same-origin) to private: no-cors failed second preflight.]
-    expected: FAIL
-
-  [treat-as-public to private to local: failed first preflight.]
-    expected: FAIL
-
-  [treat-as-public to private to local: failed second preflight.]
-    expected: FAIL
-
-  [treat-as-public to private to local: success.]
-    expected: FAIL
-
-  [treat-as-public to private to local: no-cors failed first preflight.]
-    expected: FAIL
-
-  [treat-as-public to private to local: no-cors failed second preflight.]
-    expected: FAIL
-
-  [treat-as-public to private to local (same-origin): failed first preflight.]
-    expected: FAIL
-
-  [treat-as-public to private to local (same-origin): success.]
-    expected: FAIL
-
-  [treat-as-public to private to local (same-origin): no-cors failed first preflight.]
-    expected: FAIL
diff --git a/tests/wpt/meta/fetch/private-network-access/service-worker-background-fetch.tentative.https.window.js.ini b/tests/wpt/meta/fetch/private-network-access/service-worker-background-fetch.tentative.https.window.js.ini
deleted file mode 100644
index 2005387aadd..00000000000
--- a/tests/wpt/meta/fetch/private-network-access/service-worker-background-fetch.tentative.https.window.js.ini
+++ /dev/null
@@ -1,27 +0,0 @@
-[service-worker-background-fetch.tentative.https.window.html]
-  [local to local: success.]
-    expected: FAIL
-
-  [private to local: success.]
-    expected: FAIL
-
-  [private to private: success.]
-    expected: FAIL
-
-  [public to local: success.]
-    expected: FAIL
-
-  [public to private: success.]
-    expected: FAIL
-
-  [public to public: success.]
-    expected: FAIL
-
-  [treat-as-public to local: success.]
-    expected: FAIL
-
-  [treat-as-public to private: success.]
-    expected: FAIL
-
-  [treat-as-public to public: success.]
-    expected: FAIL
diff --git a/tests/wpt/meta/fetch/private-network-access/service-worker-fetch-document-treat-as-public.tentative.https.window.js.ini b/tests/wpt/meta/fetch/private-network-access/service-worker-fetch-document-treat-as-public.tentative.https.window.js.ini
deleted file mode 100644
index f679ad1145e..00000000000
--- a/tests/wpt/meta/fetch/private-network-access/service-worker-fetch-document-treat-as-public.tentative.https.window.js.ini
+++ /dev/null
@@ -1,19 +0,0 @@
-[service-worker-fetch-document-treat-as-public.tentative.https.window.html]
-  expected: TIMEOUT
-  [treat-as-public to local: failed preflight.]
-    expected: TIMEOUT
-
-  [treat-as-public to local: success.]
-    expected: NOTRUN
-
-  [treat-as-public to local (same-origin): no preflight required.]
-    expected: NOTRUN
-
-  [treat-as-public to private: failed preflight.]
-    expected: NOTRUN
-
-  [treat-as-public to private: success.]
-    expected: NOTRUN
-
-  [treat-as-public to public: success.]
-    expected: NOTRUN
diff --git a/tests/wpt/meta/fetch/private-network-access/service-worker-fetch-document.tentative.https.window.js.ini b/tests/wpt/meta/fetch/private-network-access/service-worker-fetch-document.tentative.https.window.js.ini
deleted file mode 100644
index daa4ff7a6e7..00000000000
--- a/tests/wpt/meta/fetch/private-network-access/service-worker-fetch-document.tentative.https.window.js.ini
+++ /dev/null
@@ -1,28 +0,0 @@
-[service-worker-fetch-document.tentative.https.window.html]
-  expected: TIMEOUT
-  [local to local: success.]
-    expected: TIMEOUT
-
-  [private to local: failed preflight.]
-    expected: NOTRUN
-
-  [private to local: success.]
-    expected: NOTRUN
-
-  [private to private: success.]
-    expected: NOTRUN
-
-  [public to local: failed preflight.]
-    expected: NOTRUN
-
-  [public to local: success.]
-    expected: NOTRUN
-
-  [public to private: failed preflight.]
-    expected: NOTRUN
-
-  [public to private: success.]
-    expected: NOTRUN
-
-  [public to public: success.]
-    expected: NOTRUN
diff --git a/tests/wpt/meta/fetch/private-network-access/service-worker-fetch.tentative.https.window.js.ini b/tests/wpt/meta/fetch/private-network-access/service-worker-fetch.tentative.https.window.js.ini
deleted file mode 100644
index 9b3f5ac9503..00000000000
--- a/tests/wpt/meta/fetch/private-network-access/service-worker-fetch.tentative.https.window.js.ini
+++ /dev/null
@@ -1,49 +0,0 @@
-[service-worker-fetch.tentative.https.window.html?9-last]
-  expected: TIMEOUT
-  [public to public: success.]
-    expected: TIMEOUT
-
-  [treat-as-public to local: failed preflight.]
-    expected: NOTRUN
-
-  [treat-as-public to local: success.]
-    expected: NOTRUN
-
-  [treat-as-public to local (same-origin): no preflight required.]
-    expected: NOTRUN
-
-  [treat-as-public to private: failed preflight.]
-    expected: NOTRUN
-
-  [treat-as-public to private: success.]
-    expected: NOTRUN
-
-  [treat-as-public to public: success.]
-    expected: NOTRUN
-
-
-[service-worker-fetch.tentative.https.window.html?1-8]
-  expected: TIMEOUT
-  [local to local: success.]
-    expected: TIMEOUT
-
-  [private to local: failed preflight.]
-    expected: NOTRUN
-
-  [private to local: success.]
-    expected: NOTRUN
-
-  [private to private: success.]
-    expected: NOTRUN
-
-  [public to local: failed preflight.]
-    expected: NOTRUN
-
-  [public to local: success.]
-    expected: NOTRUN
-
-  [public to private: failed preflight.]
-    expected: NOTRUN
-
-  [public to private: success.]
-    expected: NOTRUN
diff --git a/tests/wpt/meta/fetch/private-network-access/service-worker-update.tentative.https.window.js.ini b/tests/wpt/meta/fetch/private-network-access/service-worker-update.tentative.https.window.js.ini
deleted file mode 100644
index 41f932a66c9..00000000000
--- a/tests/wpt/meta/fetch/private-network-access/service-worker-update.tentative.https.window.js.ini
+++ /dev/null
@@ -1,10 +0,0 @@
-[service-worker-update.tentative.https.window.html]
-  expected: TIMEOUT
-  [update public to local: success.]
-    expected: TIMEOUT
-
-  [update public to private: success.]
-    expected: NOTRUN
-
-  [update public to public: success.]
-    expected: NOTRUN
diff --git a/tests/wpt/meta/fetch/private-network-access/service-worker.tentative.https.window.js.ini b/tests/wpt/meta/fetch/private-network-access/service-worker.tentative.https.window.js.ini
deleted file mode 100644
index 56e39867a3e..00000000000
--- a/tests/wpt/meta/fetch/private-network-access/service-worker.tentative.https.window.js.ini
+++ /dev/null
@@ -1,9 +0,0 @@
-[service-worker.tentative.https.window.html]
-  [treat-as-public to local: success.]
-    expected: FAIL
-
-  [treat-as-public to private: success.]
-    expected: FAIL
-
-  [public to public: success.]
-    expected: FAIL
diff --git a/tests/wpt/meta/fetch/private-network-access/shared-worker-blob-fetch.tentative.https.window.js.ini b/tests/wpt/meta/fetch/private-network-access/shared-worker-blob-fetch.tentative.https.window.js.ini
deleted file mode 100644
index ec0c80cbb30..00000000000
--- a/tests/wpt/meta/fetch/private-network-access/shared-worker-blob-fetch.tentative.https.window.js.ini
+++ /dev/null
@@ -1,46 +0,0 @@
-[shared-worker-blob-fetch.tentative.https.window.html]
-  expected: TIMEOUT
-  [local to local: success.]
-    expected: TIMEOUT
-
-  [private to local: failed preflight.]
-    expected: NOTRUN
-
-  [private to local: success.]
-    expected: NOTRUN
-
-  [private to private: success.]
-    expected: NOTRUN
-
-  [public to local: failed preflight.]
-    expected: NOTRUN
-
-  [public to local: success.]
-    expected: NOTRUN
-
-  [public to private: failed preflight.]
-    expected: NOTRUN
-
-  [public to private: success.]
-    expected: NOTRUN
-
-  [public to public: success.]
-    expected: NOTRUN
-
-  [treat-as-public to local: failed preflight.]
-    expected: NOTRUN
-
-  [treat-as-public to local: success.]
-    expected: NOTRUN
-
-  [treat-as-public to local (same-origin): no preflight required.]
-    expected: NOTRUN
-
-  [treat-as-public to private: failed preflight.]
-    expected: NOTRUN
-
-  [treat-as-public to private: success.]
-    expected: NOTRUN
-
-  [treat-as-public to public: success.]
-    expected: NOTRUN
diff --git a/tests/wpt/meta/fetch/private-network-access/shared-worker-blob-fetch.tentative.window.js.ini b/tests/wpt/meta/fetch/private-network-access/shared-worker-blob-fetch.tentative.window.js.ini
deleted file mode 100644
index 1e376086dfe..00000000000
--- a/tests/wpt/meta/fetch/private-network-access/shared-worker-blob-fetch.tentative.window.js.ini
+++ /dev/null
@@ -1,46 +0,0 @@
-[shared-worker-blob-fetch.tentative.window.html]
-  expected: TIMEOUT
-  [local to local: success.]
-    expected: TIMEOUT
-
-  [private to local: failure.]
-    expected: NOTRUN
-
-  [private to private: success.]
-    expected: NOTRUN
-
-  [public to local: failure.]
-    expected: NOTRUN
-
-  [public to private: failure.]
-    expected: NOTRUN
-
-  [public to public: success.]
-    expected: NOTRUN
-
-  [treat-as-public to local: failure.]
-    expected: NOTRUN
-
-  [treat-as-public to private: failure.]
-    expected: NOTRUN
-
-  [treat-as-public to public: success.]
-    expected: NOTRUN
-
-  [local https to local: success.]
-    expected: NOTRUN
-
-  [private https to local: failure.]
-    expected: NOTRUN
-
-  [public https to local: failure.]
-    expected: NOTRUN
-
-  [local https to local https: success.]
-    expected: NOTRUN
-
-  [private https to local https: failure.]
-    expected: NOTRUN
-
-  [public https to local https: failure.]
-    expected: NOTRUN
diff --git a/tests/wpt/meta/fetch/private-network-access/shared-worker-fetch.tentative.https.window.js.ini b/tests/wpt/meta/fetch/private-network-access/shared-worker-fetch.tentative.https.window.js.ini
deleted file mode 100644
index 14b412221bd..00000000000
--- a/tests/wpt/meta/fetch/private-network-access/shared-worker-fetch.tentative.https.window.js.ini
+++ /dev/null
@@ -1,46 +0,0 @@
-[shared-worker-fetch.tentative.https.window.html]
-  expected: TIMEOUT
-  [local to local: success.]
-    expected: TIMEOUT
-
-  [private to local: failure.]
-    expected: NOTRUN
-
-  [private to local: success.]
-    expected: NOTRUN
-
-  [private to private: success.]
-    expected: NOTRUN
-
-  [public to local: failed preflight.]
-    expected: NOTRUN
-
-  [public to local: success.]
-    expected: NOTRUN
-
-  [public to private: failed preflight.]
-    expected: NOTRUN
-
-  [public to private: success.]
-    expected: NOTRUN
-
-  [public to public: success.]
-    expected: NOTRUN
-
-  [treat-as-public to local: failed preflight.]
-    expected: NOTRUN
-
-  [treat-as-public to local: success.]
-    expected: NOTRUN
-
-  [treat-as-public to local (same-origin): no preflight required.]
-    expected: NOTRUN
-
-  [treat-as-public to private: failed preflight.]
-    expected: NOTRUN
-
-  [treat-as-public to private: success.]
-    expected: NOTRUN
-
-  [treat-as-public to public: success.]
-    expected: NOTRUN
diff --git a/tests/wpt/meta/fetch/private-network-access/shared-worker-fetch.tentative.window.js.ini b/tests/wpt/meta/fetch/private-network-access/shared-worker-fetch.tentative.window.js.ini
deleted file mode 100644
index 81bef634058..00000000000
--- a/tests/wpt/meta/fetch/private-network-access/shared-worker-fetch.tentative.window.js.ini
+++ /dev/null
@@ -1,40 +0,0 @@
-[shared-worker-fetch.tentative.window.html]
-  expected: TIMEOUT
-  [local to local: success.]
-    expected: TIMEOUT
-
-  [private to local: failure.]
-    expected: NOTRUN
-
-  [private to private: success.]
-    expected: NOTRUN
-
-  [public to local: failure.]
-    expected: NOTRUN
-
-  [public to private: failure.]
-    expected: NOTRUN
-
-  [public to public: success.]
-    expected: NOTRUN
-
-  [treat-as-public to local: failure.]
-    expected: NOTRUN
-
-  [treat-as-public to private: failure.]
-    expected: NOTRUN
-
-  [treat-as-public to public: success.]
-    expected: NOTRUN
-
-  [local https to local: success.]
-    expected: NOTRUN
-
-  [private https to local: failure.]
-    expected: NOTRUN
-
-  [public https to local: failure.]
-    expected: NOTRUN
-
-  [public https to private: failure.]
-    expected: NOTRUN
diff --git a/tests/wpt/meta/fetch/private-network-access/shared-worker.tentative.https.window.js.ini b/tests/wpt/meta/fetch/private-network-access/shared-worker.tentative.https.window.js.ini
deleted file mode 100644
index b7b4cda5ea7..00000000000
--- a/tests/wpt/meta/fetch/private-network-access/shared-worker.tentative.https.window.js.ini
+++ /dev/null
@@ -1,10 +0,0 @@
-[shared-worker.tentative.https.window.html]
-  expected: TIMEOUT
-  [treat-as-public to local: success.]
-    expected: TIMEOUT
-
-  [treat-as-public to private: success.]
-    expected: NOTRUN
-
-  [public to public: success.]
-    expected: NOTRUN
diff --git a/tests/wpt/meta/fetch/private-network-access/shared-worker.tentative.window.js.ini b/tests/wpt/meta/fetch/private-network-access/shared-worker.tentative.window.js.ini
deleted file mode 100644
index 42032c1a1fa..00000000000
--- a/tests/wpt/meta/fetch/private-network-access/shared-worker.tentative.window.js.ini
+++ /dev/null
@@ -1,10 +0,0 @@
-[shared-worker.tentative.window.html]
-  expected: TIMEOUT
-  [treat-as-public to local: failure.]
-    expected: TIMEOUT
-
-  [treat-as-public to private: failure.]
-    expected: NOTRUN
-
-  [public to public: success.]
-    expected: NOTRUN
diff --git a/tests/wpt/meta/fetch/private-network-access/websocket.tentative.window.js.ini b/tests/wpt/meta/fetch/private-network-access/websocket.tentative.window.js.ini
deleted file mode 100644
index e91b1412767..00000000000
--- a/tests/wpt/meta/fetch/private-network-access/websocket.tentative.window.js.ini
+++ /dev/null
@@ -1,9 +0,0 @@
-[websocket.tentative.window.html]
-  [private to local: websocket failure.]
-    expected: FAIL
-
-  [public to local: websocket failure.]
-    expected: FAIL
-
-  [treat-as-public to local: websocket failure.]
-    expected: FAIL
diff --git a/tests/wpt/meta/fetch/private-network-access/window-open-existing.tentative.window.js.ini b/tests/wpt/meta/fetch/private-network-access/window-open-existing.tentative.window.js.ini
deleted file mode 100644
index 07c095b2caf..00000000000
--- a/tests/wpt/meta/fetch/private-network-access/window-open-existing.tentative.window.js.ini
+++ /dev/null
@@ -1,21 +0,0 @@
-[window-open-existing.tentative.window.html]
-  [local to local: no preflight required.]
-    expected: FAIL
-
-  [local to private: no preflight required.]
-    expected: FAIL
-
-  [local to public: no preflight required.]
-    expected: FAIL
-
-  [private to private: no preflight required.]
-    expected: FAIL
-
-  [private to public: no preflight required.]
-    expected: FAIL
-
-  [public to public: no preflight required.]
-    expected: FAIL
-
-  [treat-as-public-address to public: no preflight required.]
-    expected: FAIL
diff --git a/tests/wpt/meta/fetch/private-network-access/window-open.tentative.https.window.js.ini b/tests/wpt/meta/fetch/private-network-access/window-open.tentative.https.window.js.ini
deleted file mode 100644
index ec5bffcbbd2..00000000000
--- a/tests/wpt/meta/fetch/private-network-access/window-open.tentative.https.window.js.ini
+++ /dev/null
@@ -1,110 +0,0 @@
-[window-open.tentative.https.window.html]
-  [private to local: failed preflight.]
-    expected: FAIL
-
-  [private to local: missing CORS headers.]
-    expected: FAIL
-
-  [private to local: missing PNA header.]
-    expected: FAIL
-
-  [public to local: failed preflight.]
-    expected: FAIL
-
-  [public to local: missing CORS headers.]
-    expected: FAIL
-
-  [public to local: missing PNA header.]
-    expected: FAIL
-
-  [public to private: failed preflight.]
-    expected: FAIL
-
-  [public to private: missing CORS headers.]
-    expected: FAIL
-
-  [public to private: missing PNA header.]
-    expected: FAIL
-
-  [treat-as-public-address to local: failed preflight.]
-    expected: FAIL
-
-  [treat-as-public-address to local: missing CORS headers.]
-    expected: FAIL
-
-  [treat-as-public-address to local: missing PNA header.]
-    expected: FAIL
-
-  [treat-as-public-address to private: failed preflight.]
-    expected: FAIL
-
-  [treat-as-public-address to private: missing CORS headers.]
-    expected: FAIL
-
-  [treat-as-public-address to private: missing PNA header.]
-    expected: FAIL
-
-
-[window-open.tentative.https.window.html?include=from-local]
-  [local to local: no preflight required.]
-    expected: FAIL
-
-  [local to private: no preflight required.]
-    expected: FAIL
-
-  [local to public: no preflight required.]
-    expected: FAIL
-
-  [treat-as-public-address to local: optional preflight]
-    expected: FAIL
-
-
-[window-open.tentative.https.window.html?include=from-treat-as-public]
-  [treat-as-public-address to local: success.]
-    expected: FAIL
-
-  [treat-as-public-address to private: success.]
-    expected: FAIL
-
-  [treat-as-public-address to local (same-origin): no preflight required.]
-    expected: FAIL
-
-  [treat-as-public-address to public: no preflight required.]
-    expected: FAIL
-
-  [treat-as-public-address to local: optional preflight]
-    expected: FAIL
-
-
-[window-open.tentative.https.window.html?include=from-private]
-  [private to local: success.]
-    expected: FAIL
-
-  [private to private: no preflight required.]
-    expected: FAIL
-
-  [private to public: no preflight required.]
-    expected: FAIL
-
-  [treat-as-public-address to local: optional preflight]
-    expected: FAIL
-
-
-[window-open.tentative.https.window.html?include=from-public]
-  [public to local: success.]
-    expected: FAIL
-
-  [public to private: success.]
-    expected: FAIL
-
-  [public to public redirected to private: missing CORS headers.]
-    expected: FAIL
-
-  [public to public to private: success.]
-    expected: FAIL
-
-  [public to public: no preflight required.]
-    expected: FAIL
-
-  [treat-as-public-address to local: optional preflight]
-    expected: FAIL
diff --git a/tests/wpt/meta/fetch/private-network-access/window-open.tentative.window.js.ini b/tests/wpt/meta/fetch/private-network-access/window-open.tentative.window.js.ini
deleted file mode 100644
index bbac07846b9..00000000000
--- a/tests/wpt/meta/fetch/private-network-access/window-open.tentative.window.js.ini
+++ /dev/null
@@ -1,21 +0,0 @@
-[window-open.tentative.window.html]
-  [local to local: no preflight required.]
-    expected: FAIL
-
-  [local to private: no preflight required.]
-    expected: FAIL
-
-  [local to public: no preflight required.]
-    expected: FAIL
-
-  [private to private: no preflight required.]
-    expected: FAIL
-
-  [private to public: no preflight required.]
-    expected: FAIL
-
-  [public to public: no preflight required.]
-    expected: FAIL
-
-  [treat-as-public-address to public: no preflight required.]
-    expected: FAIL
diff --git a/tests/wpt/meta/fetch/private-network-access/worker-blob-fetch.tentative.window.js.ini b/tests/wpt/meta/fetch/private-network-access/worker-blob-fetch.tentative.window.js.ini
deleted file mode 100644
index 693520bc4e1..00000000000
--- a/tests/wpt/meta/fetch/private-network-access/worker-blob-fetch.tentative.window.js.ini
+++ /dev/null
@@ -1,39 +0,0 @@
-[worker-blob-fetch.tentative.window.html]
-  [local to local: success.]
-    expected: FAIL
-
-  [private to local: failure.]
-    expected: FAIL
-
-  [private to private: success.]
-    expected: FAIL
-
-  [public to local: failure.]
-    expected: FAIL
-
-  [public to private: failure.]
-    expected: FAIL
-
-  [public to public: success.]
-    expected: FAIL
-
-  [treat-as-public to local: failure.]
-    expected: FAIL
-
-  [treat-as-public to private: failure.]
-    expected: FAIL
-
-  [local https to local https: success.]
-    expected: FAIL
-
-  [private https to local https: failure.]
-    expected: FAIL
-
-  [public https to private https: failure.]
-    expected: FAIL
-
-  [public https to local https: failure.]
-    expected: FAIL
-
-  [treat-as-public to public: success.]
-    expected: FAIL
diff --git a/tests/wpt/meta/fetch/private-network-access/worker-fetch.tentative.https.window.js.ini b/tests/wpt/meta/fetch/private-network-access/worker-fetch.tentative.https.window.js.ini
deleted file mode 100644
index eabd42e67c5..00000000000
--- a/tests/wpt/meta/fetch/private-network-access/worker-fetch.tentative.https.window.js.ini
+++ /dev/null
@@ -1,27 +0,0 @@
-[worker-fetch.tentative.https.window.html]
-  [private to local: failed preflight.]
-    expected: FAIL
-
-  [private to local: success.]
-    expected: FAIL
-
-  [public to local: failed preflight.]
-    expected: FAIL
-
-  [public to local: success.]
-    expected: FAIL
-
-  [public to private: failed preflight.]
-    expected: FAIL
-
-  [public to private: success.]
-    expected: FAIL
-
-  [treat-as-public to local: failed preflight.]
-    expected: FAIL
-
-  [treat-as-public to private: failed preflight.]
-    expected: FAIL
-
-  [treat-as-public to private: success.]
-    expected: FAIL
diff --git a/tests/wpt/meta/fetch/private-network-access/worker-fetch.tentative.window.js.ini b/tests/wpt/meta/fetch/private-network-access/worker-fetch.tentative.window.js.ini
deleted file mode 100644
index 318f43e7897..00000000000
--- a/tests/wpt/meta/fetch/private-network-access/worker-fetch.tentative.window.js.ini
+++ /dev/null
@@ -1,24 +0,0 @@
-[worker-fetch.tentative.window.html]
-  [private to local: failure.]
-    expected: FAIL
-
-  [public to local: failure.]
-    expected: FAIL
-
-  [public to private: failure.]
-    expected: FAIL
-
-  [treat-as-public to local: failure.]
-    expected: FAIL
-
-  [treat-as-public to private: failure.]
-    expected: FAIL
-
-  [private https to local https: failure.]
-    expected: FAIL
-
-  [public https to private https: failure.]
-    expected: FAIL
-
-  [public https to local https: failure.]
-    expected: FAIL
diff --git a/tests/wpt/meta/fetch/private-network-access/worker.tentative.window.js.ini b/tests/wpt/meta/fetch/private-network-access/worker.tentative.window.js.ini
deleted file mode 100644
index ae034691c21..00000000000
--- a/tests/wpt/meta/fetch/private-network-access/worker.tentative.window.js.ini
+++ /dev/null
@@ -1,6 +0,0 @@
-[worker.tentative.window.html]
-  [treat-as-public to local: failure.]
-    expected: FAIL
-
-  [treat-as-public to private: failure.]
-    expected: FAIL
diff --git a/tests/wpt/meta/fetch/private-network-access/xhr-from-treat-as-public.tentative.https.window.js.ini b/tests/wpt/meta/fetch/private-network-access/xhr-from-treat-as-public.tentative.https.window.js.ini
deleted file mode 100644
index c39b8b12673..00000000000
--- a/tests/wpt/meta/fetch/private-network-access/xhr-from-treat-as-public.tentative.https.window.js.ini
+++ /dev/null
@@ -1,9 +0,0 @@
-[xhr-from-treat-as-public.tentative.https.window.html]
-  [treat-as-public to local: failed preflight.]
-    expected: FAIL
-
-  [treat-as-public to local: success.]
-    expected: FAIL
-
-  [treat-as-public to private: failed preflight.]
-    expected: FAIL
diff --git a/tests/wpt/meta/fetch/private-network-access/xhr.https.tentative.window.js.ini b/tests/wpt/meta/fetch/private-network-access/xhr.https.tentative.window.js.ini
deleted file mode 100644
index 99395cabdb6..00000000000
--- a/tests/wpt/meta/fetch/private-network-access/xhr.https.tentative.window.js.ini
+++ /dev/null
@@ -1,23 +0,0 @@
-[xhr.https.tentative.window.html?include=from-public]
-  [public to local: failed preflight.]
-    expected: FAIL
-
-  [public to local: success.]
-    expected: FAIL
-
-  [public to private: failed preflight.]
-    expected: FAIL
-
-  [public to private: success.]
-    expected: FAIL
-
-
-[xhr.https.tentative.window.html?include=from-private]
-  [private to local: failed preflight.]
-    expected: FAIL
-
-  [private to local: success.]
-    expected: FAIL
-
-
-[xhr.https.tentative.window.html?include=from-local]
diff --git a/tests/wpt/meta/fetch/private-network-access/xhr.tentative.window.js.ini b/tests/wpt/meta/fetch/private-network-access/xhr.tentative.window.js.ini
deleted file mode 100644
index 5af974d9581..00000000000
--- a/tests/wpt/meta/fetch/private-network-access/xhr.tentative.window.js.ini
+++ /dev/null
@@ -1,24 +0,0 @@
-[xhr.tentative.window.html]
-  [private to local: failure.]
-    expected: FAIL
-
-  [public to local: failure.]
-    expected: FAIL
-
-  [public to private: failure.]
-    expected: FAIL
-
-  [treat-as-public-address to local: failure.]
-    expected: FAIL
-
-  [treat-as-public-address to private: failure.]
-    expected: FAIL
-
-  [private https to local: failure.]
-    expected: FAIL
-
-  [public https to local: failure.]
-    expected: FAIL
-
-  [public https to private: failure.]
-    expected: FAIL
diff --git a/tests/wpt/meta/html/browsers/browsing-the-web/navigating-across-documents/009.html.ini b/tests/wpt/meta/html/browsers/browsing-the-web/navigating-across-documents/009.html.ini
new file mode 100644
index 00000000000..3fb21c9b2c6
--- /dev/null
+++ b/tests/wpt/meta/html/browsers/browsing-the-web/navigating-across-documents/009.html.ini
@@ -0,0 +1,3 @@
+[009.html]
+  [Link with onclick form submit to javascript url with document.write and href navigation ]
+    expected: FAIL
diff --git a/tests/wpt/meta/html/browsers/browsing-the-web/navigating-across-documents/empty-iframe-load-event.html.ini b/tests/wpt/meta/html/browsers/browsing-the-web/navigating-across-documents/empty-iframe-load-event.html.ini
deleted file mode 100644
index 3e07e6b7d1f..00000000000
--- a/tests/wpt/meta/html/browsers/browsing-the-web/navigating-across-documents/empty-iframe-load-event.html.ini
+++ /dev/null
@@ -1,6 +0,0 @@
-[empty-iframe-load-event.html]
-  [Check execution order from nested timeout]
-    expected: FAIL
-
-  [Check execution order on load handler]
-    expected: FAIL
diff --git a/tests/wpt/meta/html/browsers/browsing-the-web/navigating-across-documents/navigation-unload-cross-origin.sub.window.js.ini b/tests/wpt/meta/html/browsers/browsing-the-web/navigating-across-documents/navigation-unload-cross-origin.sub.window.js.ini
new file mode 100644
index 00000000000..4ecd6d9f753
--- /dev/null
+++ b/tests/wpt/meta/html/browsers/browsing-the-web/navigating-across-documents/navigation-unload-cross-origin.sub.window.js.ini
@@ -0,0 +1,3 @@
+[navigation-unload-cross-origin.sub.window.html]
+  [Cross-origin navigation started from unload handler must be ignored]
+    expected: FAIL
diff --git a/tests/wpt/meta/html/browsers/history/the-history-interface/traverse_the_history_2.html.ini b/tests/wpt/meta/html/browsers/history/the-history-interface/traverse_the_history_2.html.ini
new file mode 100644
index 00000000000..5d17a8e9419
--- /dev/null
+++ b/tests/wpt/meta/html/browsers/history/the-history-interface/traverse_the_history_2.html.ini
@@ -0,0 +1,3 @@
+[traverse_the_history_2.html]
+  [Multiple history traversals, last would be aborted]
+    expected: FAIL
diff --git a/tests/wpt/meta/html/browsers/history/the-history-interface/traverse_the_history_3.html.ini b/tests/wpt/meta/html/browsers/history/the-history-interface/traverse_the_history_3.html.ini
new file mode 100644
index 00000000000..a03a8322165
--- /dev/null
+++ b/tests/wpt/meta/html/browsers/history/the-history-interface/traverse_the_history_3.html.ini
@@ -0,0 +1,3 @@
+[traverse_the_history_3.html]
+  [Multiple history traversals, last would be aborted]
+    expected: FAIL
diff --git a/tests/wpt/meta/html/dom/access-key-label.html.ini b/tests/wpt/meta/html/dom/access-key-label.html.ini
new file mode 100644
index 00000000000..8526bccc2e0
--- /dev/null
+++ b/tests/wpt/meta/html/dom/access-key-label.html.ini
@@ -0,0 +1,3 @@
+[access-key-label.html]
+  [Returns empty string when accesskey is invalid]
+    expected: FAIL
diff --git a/tests/wpt/meta/html/interaction/focus/the-autofocus-attribute/autofocus-dialog.html.ini b/tests/wpt/meta/html/interaction/focus/the-autofocus-attribute/autofocus-dialog.html.ini
index 830aeb8ae48..fdc27d37788 100644
--- a/tests/wpt/meta/html/interaction/focus/the-autofocus-attribute/autofocus-dialog.html.ini
+++ b/tests/wpt/meta/html/interaction/focus/the-autofocus-attribute/autofocus-dialog.html.ini
@@ -1,7 +1,6 @@
 [autofocus-dialog.html]
-  expected: TIMEOUT
   [<dialog> can contain autofocus, without stopping page autofocus content from working]
     expected: FAIL
 
   [<dialog>-contained autofocus element gets focused when the dialog is shown]
-    expected: TIMEOUT
+    expected: FAIL
diff --git a/tests/wpt/meta/html/rendering/replaced-elements/attributes-for-embedded-content-and-images/video-default-object-height-constrained-by-max-width.html.ini b/tests/wpt/meta/html/rendering/replaced-elements/attributes-for-embedded-content-and-images/video-default-object-height-constrained-by-max-width.html.ini
new file mode 100644
index 00000000000..6df35ab17ba
--- /dev/null
+++ b/tests/wpt/meta/html/rendering/replaced-elements/attributes-for-embedded-content-and-images/video-default-object-height-constrained-by-max-width.html.ini
@@ -0,0 +1,2 @@
+[video-default-object-height-constrained-by-max-width.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/html/rendering/replaced-elements/attributes-for-embedded-content-and-images/video-default-object-width-constrained-by-max-height.html.ini b/tests/wpt/meta/html/rendering/replaced-elements/attributes-for-embedded-content-and-images/video-default-object-width-constrained-by-max-height.html.ini
new file mode 100644
index 00000000000..dc1a7638e8c
--- /dev/null
+++ b/tests/wpt/meta/html/rendering/replaced-elements/attributes-for-embedded-content-and-images/video-default-object-width-constrained-by-max-height.html.ini
@@ -0,0 +1,2 @@
+[video-default-object-width-constrained-by-max-height.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/html/semantics/forms/form-submission-0/text-plain.window.js.ini b/tests/wpt/meta/html/semantics/forms/form-submission-0/text-plain.window.js.ini
index 320f8cf856c..9ad31fef5b7 100644
--- a/tests/wpt/meta/html/semantics/forms/form-submission-0/text-plain.window.js.ini
+++ b/tests/wpt/meta/html/semantics/forms/form-submission-0/text-plain.window.js.ini
@@ -1,7 +1,4 @@
 [text-plain.window.html]
-  [text/plain: Basic test (normal form)]
-    expected: FAIL
-
   [text/plain: Basic File test (normal form)]
     expected: FAIL
 
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/border-rendering.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/border-rendering.html.ini
new file mode 100644
index 00000000000..e8f6cbd2970
--- /dev/null
+++ b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/border-rendering.html.ini
@@ -0,0 +1,2 @@
+[border-rendering.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/border-rendering.tentative.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/border-rendering.tentative.html.ini
deleted file mode 100644
index 64bbc4eb303..00000000000
--- a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/border-rendering.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[border-rendering.tentative.html]
-  expected: FAIL
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/focus-ring-rendering.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/focus-ring-rendering.html.ini
new file mode 100644
index 00000000000..bee911a3732
--- /dev/null
+++ b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/focus-ring-rendering.html.ini
@@ -0,0 +1,2 @@
+[focus-ring-rendering.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/focus-ring-rendering.tentative.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/focus-ring-rendering.tentative.html.ini
deleted file mode 100644
index 0244e4d1673..00000000000
--- a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/focus-ring-rendering.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[focus-ring-rendering.tentative.html]
-  expected: FAIL
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/option-list.tentative.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/option-list.html.ini
similarity index 79%
rename from tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/option-list.tentative.html.ini
rename to tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/option-list.html.ini
index ae439d86e7f..5f969f0d88f 100644
--- a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/option-list.tentative.html.ini
+++ b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/option-list.html.ini
@@ -1,3 +1,3 @@
-[option-list.tentative.html]
+[option-list.html]
   [select's option list should not include descendants of options, hrs, or nested optgroups.]
     expected: FAIL
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/picker-and-slotted.tentative.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/picker-and-slotted.tentative.html.ini
deleted file mode 100644
index dbe8d64d385..00000000000
--- a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/picker-and-slotted.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[picker-and-slotted.tentative.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-active.tentative.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-active.tentative.html.ini
deleted file mode 100644
index 494d822cfe8..00000000000
--- a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-active.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[select-appearance-active.tentative.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-custom-button.tentative.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-custom-button.tentative.html.ini
deleted file mode 100644
index 4206c7dda14..00000000000
--- a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-custom-button.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[select-appearance-custom-button.tentative.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-dark-mode.tentative.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-dark-mode.tentative.html.ini
deleted file mode 100644
index 5bc744af70b..00000000000
--- a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-dark-mode.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[select-appearance-dark-mode.tentative.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-default-button.tentative.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-default-button.tentative.html.ini
deleted file mode 100644
index 17fbd2f1fa9..00000000000
--- a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-default-button.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[select-appearance-default-button.tentative.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-disabled-option.tentative.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-disabled-option.tentative.html.ini
deleted file mode 100644
index f5634cbe0de..00000000000
--- a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-disabled-option.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[select-appearance-disabled-option.tentative.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-disabled.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-disabled.html.ini
new file mode 100644
index 00000000000..86a5e4b2a3c
--- /dev/null
+++ b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-disabled.html.ini
@@ -0,0 +1,2 @@
+[select-appearance-disabled.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-disabled.tentative.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-disabled.tentative.html.ini
deleted file mode 100644
index 6133e32a697..00000000000
--- a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-disabled.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[select-appearance-disabled.tentative.html]
-  expected: FAIL
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-bottom-left-scroller.tentative.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-bottom-left-scroller.tentative.html.ini
deleted file mode 100644
index c5ea7226a7c..00000000000
--- a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-bottom-left-scroller.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[select-appearance-fallback-bottom-left-scroller.tentative.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-bottom-left.tentative.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-bottom-left.tentative.html.ini
deleted file mode 100644
index bd857d4046b..00000000000
--- a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-bottom-left.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[select-appearance-fallback-bottom-left.tentative.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-bottom-right-scroller.tentative.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-bottom-right-scroller.tentative.html.ini
deleted file mode 100644
index a239ffd15f4..00000000000
--- a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-bottom-right-scroller.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[select-appearance-fallback-bottom-right-scroller.tentative.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-bottom-right.tentative.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-bottom-right.tentative.html.ini
deleted file mode 100644
index 89ec4867246..00000000000
--- a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-bottom-right.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[select-appearance-fallback-bottom-right.tentative.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-top-left-scroller.tentative.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-top-left-scroller.tentative.html.ini
deleted file mode 100644
index ed66a0ff78f..00000000000
--- a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-top-left-scroller.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[select-appearance-fallback-top-left-scroller.tentative.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-top-left.tentative.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-top-left.tentative.html.ini
deleted file mode 100644
index b897599014d..00000000000
--- a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-top-left.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[select-appearance-fallback-top-left.tentative.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-top-right-scroller.tentative.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-top-right-scroller.tentative.html.ini
deleted file mode 100644
index 9848bd0c399..00000000000
--- a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-top-right-scroller.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[select-appearance-fallback-top-right-scroller.tentative.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-top-right.tentative.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-top-right.tentative.html.ini
deleted file mode 100644
index 74a8afd39df..00000000000
--- a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-top-right.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[select-appearance-fallback-top-right.tentative.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-font-inheriting.tentative.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-font-inheriting.tentative.html.ini
deleted file mode 100644
index cd2e36f192d..00000000000
--- a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-font-inheriting.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[select-appearance-font-inheriting.tentative.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-hover.tentative.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-hover.tentative.html.ini
deleted file mode 100644
index 83715ddd2e7..00000000000
--- a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-hover.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[select-appearance-hover.tentative.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-optgroup-legend-and-label.tentative.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-optgroup-legend-and-label.tentative.html.ini
deleted file mode 100644
index a3fab59b45c..00000000000
--- a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-optgroup-legend-and-label.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[select-appearance-optgroup-legend-and-label.tentative.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-optgroup-legend.tentative.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-optgroup-legend.tentative.html.ini
deleted file mode 100644
index 4a258c7a347..00000000000
--- a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-optgroup-legend.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[select-appearance-optgroup-legend.tentative.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-optgroup-rendering.tentative.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-optgroup-rendering.tentative.html.ini
deleted file mode 100644
index e769240663b..00000000000
--- a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-optgroup-rendering.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[select-appearance-optgroup-rendering.tentative.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-option-with-label.tentative.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-option-with-label.tentative.html.ini
deleted file mode 100644
index 1e2849e7b73..00000000000
--- a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-option-with-label.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[select-appearance-option-with-label.tentative.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-picker-select-border.tentative.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-picker-select-border.tentative.html.ini
deleted file mode 100644
index a483dd09c43..00000000000
--- a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-picker-select-border.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[select-appearance-picker-select-border.tentative.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-switching-invalidation.tentative.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-switching-invalidation.tentative.html.ini
deleted file mode 100644
index b715815f1ff..00000000000
--- a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-switching-invalidation.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[select-appearance-switching-invalidation.tentative.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-writing-mode-vertical-lr.tentative.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-writing-mode-vertical-lr.tentative.html.ini
deleted file mode 100644
index 3b64ad3a46a..00000000000
--- a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-writing-mode-vertical-lr.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[select-appearance-writing-mode-vertical-lr.tentative.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-writing-mode-vertical-rl.tentative.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-writing-mode-vertical-rl.tentative.html.ini
deleted file mode 100644
index a3843b0849b..00000000000
--- a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-writing-mode-vertical-rl.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[select-appearance-writing-mode-vertical-rl.tentative.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-wrong-picker-argument.tentative.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-wrong-picker-argument.tentative.html.ini
deleted file mode 100644
index a445de32614..00000000000
--- a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-appearance-wrong-picker-argument.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[select-appearance-wrong-picker-argument.tentative.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-explicit-size.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-explicit-size.html.ini
new file mode 100644
index 00000000000..574504792b2
--- /dev/null
+++ b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-explicit-size.html.ini
@@ -0,0 +1,2 @@
+[select-explicit-size.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-explicit-size.tentative.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-explicit-size.tentative.html.ini
deleted file mode 100644
index 0ea3809ac7f..00000000000
--- a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-explicit-size.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[select-explicit-size.tentative.html]
-  expected: FAIL
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-font-size.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-font-size.html.ini
new file mode 100644
index 00000000000..992c7c1b35c
--- /dev/null
+++ b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-font-size.html.ini
@@ -0,0 +1,2 @@
+[select-font-size.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-font-size.tentative.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-font-size.tentative.html.ini
deleted file mode 100644
index 878d77cdc01..00000000000
--- a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-font-size.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[select-font-size.tentative.html]
-  expected: FAIL
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-icon-color.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-icon-color.html.ini
new file mode 100644
index 00000000000..dce05fc23b3
--- /dev/null
+++ b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-icon-color.html.ini
@@ -0,0 +1,2 @@
+[select-icon-color.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-icon-color.tentative.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-icon-color.tentative.html.ini
deleted file mode 100644
index 2369a8cf7cd..00000000000
--- a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-icon-color.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[select-icon-color.tentative.html]
-  expected: FAIL
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-only-button-opt-in.tentative.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-only-button-opt-in.tentative.html.ini
deleted file mode 100644
index 07cf3be2c1f..00000000000
--- a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-only-button-opt-in.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[select-only-button-opt-in.tentative.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-only-picker-opt-in.tentative.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-only-picker-opt-in.tentative.html.ini
deleted file mode 100644
index 8d26bd47133..00000000000
--- a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-only-picker-opt-in.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[select-only-picker-opt-in.tentative.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-open-invalidation.tentative.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-open-invalidation.tentative.html.ini
deleted file mode 100644
index cbc9fb2ddd5..00000000000
--- a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-open-invalidation.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[select-open-invalidation.tentative.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-option-images.tentative.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-option-images.tentative.html.ini
deleted file mode 100644
index 599cfa5f62a..00000000000
--- a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-option-images.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[select-option-images.tentative.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-datalist-options-idl.tentative.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-options-id.html.ini
similarity index 87%
rename from tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-datalist-options-idl.tentative.html.ini
rename to tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-options-id.html.ini
index 3a5e9a3d9dc..b51571fc7fa 100644
--- a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-datalist-options-idl.tentative.html.ini
+++ b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-options-id.html.ini
@@ -1,4 +1,4 @@
-[select-datalist-options-idl.tentative.html]
+[select-options-id.html]
   [Option elements should work if they are a descendant of a selects wrapper div.]
     expected: FAIL
 
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-parsing.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-parsing.html.ini
new file mode 100644
index 00000000000..05e4ff7710d
--- /dev/null
+++ b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-parsing.html.ini
@@ -0,0 +1,24 @@
+[select-parsing.html]
+  [<div>s, <button>s, and <datalist>s should be allowed in <select>]
+    expected: FAIL
+
+  [</select> should close <button>]
+    expected: FAIL
+
+  [</select> should close <datalist>]
+    expected: FAIL
+
+  [<select> in <button> in <select> should remove inner <select>]
+    expected: FAIL
+
+  [<select> in <select><button><div> should remove inner <select>]
+    expected: FAIL
+
+  [Divs and imgs should be allowed as direct children of select and within options without a datalist]
+    expected: FAIL
+
+  [textarea tags should parse inside select instead of closing the select]
+    expected: FAIL
+
+  [Input tags should parse inside select if nested in another tag]
+    expected: FAIL
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-parsing.tentative.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-parsing.tentative.html.ini
deleted file mode 100644
index 85f3d8d4da6..00000000000
--- a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-parsing.tentative.html.ini
+++ /dev/null
@@ -1,48 +0,0 @@
-[select-parsing.tentative.html]
-  [<div>s, <button>s, and <datalist>s should be allowed in <select>.]
-    expected: FAIL
-
-  [</select> should close <button>.]
-    expected: FAIL
-
-  [</select> should close <datalist>.]
-    expected: FAIL
-
-  [<select> in <button> in <select> should remove inner <select>.]
-    expected: FAIL
-
-  [<select> in <select><button><div> should remove inner <select>.]
-    expected: FAIL
-
-  [Divs and imgs should be allowed as direct children of select and within options without a datalist.]
-    expected: FAIL
-
-  [Input tags should parse inside select instead of closing the select.]
-    expected: FAIL
-
-  [<div>s, <button>s, and <datalist>s should be allowed in <select>]
-    expected: FAIL
-
-  [</select> should close <button>]
-    expected: FAIL
-
-  [</select> should close <datalist>]
-    expected: FAIL
-
-  [<select> in <button> in <select> should remove inner <select>]
-    expected: FAIL
-
-  [<select> in <select><button><div> should remove inner <select>]
-    expected: FAIL
-
-  [Divs and imgs should be allowed as direct children of select and within options without a datalist]
-    expected: FAIL
-
-  [Input tags should parse inside select instead of closing the select]
-    expected: FAIL
-
-  [textarea tags should parse inside select instead of closing the select]
-    expected: FAIL
-
-  [Input tags should parse inside select if nested in another tag]
-    expected: FAIL
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-popover-exit-animation.tentative.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-popover-exit-animation.tentative.html.ini
deleted file mode 100644
index bb49f449bc5..00000000000
--- a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-popover-exit-animation.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[select-popover-exit-animation.tentative.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-second-child-button.tentative.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-second-child-button.tentative.html.ini
deleted file mode 100644
index 6040839b9d1..00000000000
--- a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-second-child-button.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[select-second-child-button.tentative.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-selected-value-behavior.tentative.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-selected-value-behavior.tentative.html.ini
deleted file mode 100644
index aaa73a2c686..00000000000
--- a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-selected-value-behavior.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[select-selected-value-behavior.tentative.html]
-  expected: FAIL
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-text-only.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-text-only.html.ini
new file mode 100644
index 00000000000..4db5b62d3c0
--- /dev/null
+++ b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-text-only.html.ini
@@ -0,0 +1,2 @@
+[select-text-only.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-text-only.tentative.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-text-only.tentative.html.ini
deleted file mode 100644
index 86dfbe6c5d6..00000000000
--- a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-text-only.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[select-text-only.tentative.html]
-  expected: FAIL
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-value-selectedOption.tentative.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-value-selectedOption.html.ini
similarity index 95%
rename from tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-value-selectedOption.tentative.html.ini
rename to tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-value-selectedOption.html.ini
index f9e5610b209..fdfc89c142f 100644
--- a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-value-selectedOption.tentative.html.ini
+++ b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-value-selectedOption.html.ini
@@ -1,4 +1,4 @@
-[select-value-selectedOption.tentative.html]
+[select-value-selectedOption.html]
   [Test that HTMLselect with no options has empty string for value and null for selectedOption]
     expected: FAIL
 
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/selectedcontent-color.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/selectedcontent-color.html.ini
new file mode 100644
index 00000000000..3485a512e06
--- /dev/null
+++ b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/selectedcontent-color.html.ini
@@ -0,0 +1,2 @@
+[selectedcontent-color.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/selectedcontent-mutations.tentative.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/selectedcontent-mutations.html.ini
similarity index 69%
rename from tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/selectedcontent-mutations.tentative.html.ini
rename to tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/selectedcontent-mutations.html.ini
index 4f7b9917493..3516cbba4f4 100644
--- a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/selectedcontent-mutations.tentative.html.ini
+++ b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/selectedcontent-mutations.html.ini
@@ -1,3 +1,3 @@
-[selectedcontent-mutations.tentative.html]
+[selectedcontent-mutations.html]
   [MutationObserver records during parsing of <select> with <selectedcontent>]
     expected: FAIL
diff --git a/tests/wpt/meta/html/semantics/the-button-element/interest-for/idlharness.tentative.html.ini b/tests/wpt/meta/html/semantics/interestfor/idlharness.tentative.html.ini
similarity index 100%
rename from tests/wpt/meta/html/semantics/the-button-element/interest-for/idlharness.tentative.html.ini
rename to tests/wpt/meta/html/semantics/interestfor/idlharness.tentative.html.ini
diff --git a/tests/wpt/meta/html/semantics/the-button-element/interest-for/interestelement-interface.tentative.html.ini b/tests/wpt/meta/html/semantics/interestfor/interestelement-interface.tentative.html.ini
similarity index 100%
rename from tests/wpt/meta/html/semantics/the-button-element/interest-for/interestelement-interface.tentative.html.ini
rename to tests/wpt/meta/html/semantics/interestfor/interestelement-interface.tentative.html.ini
diff --git a/tests/wpt/meta/html/semantics/the-button-element/interest-for/interestfor-css-properties.tentative.html.ini b/tests/wpt/meta/html/semantics/interestfor/interestfor-css-properties.tentative.html.ini
similarity index 100%
rename from tests/wpt/meta/html/semantics/the-button-element/interest-for/interestfor-css-properties.tentative.html.ini
rename to tests/wpt/meta/html/semantics/interestfor/interestfor-css-properties.tentative.html.ini
diff --git a/tests/wpt/meta/html/semantics/the-button-element/interest-for/interestfor-css-shorthands.tentative.html.ini b/tests/wpt/meta/html/semantics/interestfor/interestfor-css-shorthands.tentative.html.ini
similarity index 100%
rename from tests/wpt/meta/html/semantics/the-button-element/interest-for/interestfor-css-shorthands.tentative.html.ini
rename to tests/wpt/meta/html/semantics/interestfor/interestfor-css-shorthands.tentative.html.ini
diff --git a/tests/wpt/meta/html/semantics/the-button-element/interest-for/interestfor-pseudo-element-appearance.tentative.html.ini b/tests/wpt/meta/html/semantics/interestfor/interestfor-pseudo-element-appearance.tentative.html.ini
similarity index 100%
rename from tests/wpt/meta/html/semantics/the-button-element/interest-for/interestfor-pseudo-element-appearance.tentative.html.ini
rename to tests/wpt/meta/html/semantics/interestfor/interestfor-pseudo-element-appearance.tentative.html.ini
diff --git a/tests/wpt/meta/html/semantics/scripting-1/the-script-element/module/modulepreload-cross-origin-referrerpolicy.sub.html.ini b/tests/wpt/meta/html/semantics/scripting-1/the-script-element/module/modulepreload-cross-origin-referrerpolicy.sub.html.ini
new file mode 100644
index 00000000000..05f340a0d5e
--- /dev/null
+++ b/tests/wpt/meta/html/semantics/scripting-1/the-script-element/module/modulepreload-cross-origin-referrerpolicy.sub.html.ini
@@ -0,0 +1,2 @@
+[modulepreload-cross-origin-referrerpolicy.sub.html]
+  expected: TIMEOUT
diff --git a/tests/wpt/meta/html/semantics/scripting-1/the-script-element/module/modulepreload-inline-referrerpolicy.html.ini b/tests/wpt/meta/html/semantics/scripting-1/the-script-element/module/modulepreload-inline-referrerpolicy.html.ini
new file mode 100644
index 00000000000..5909670ff86
--- /dev/null
+++ b/tests/wpt/meta/html/semantics/scripting-1/the-script-element/module/modulepreload-inline-referrerpolicy.html.ini
@@ -0,0 +1,3 @@
+[modulepreload-inline-referrerpolicy.html]
+  [Inline modulepreload elements should respect the referrerpolicy attribute]
+    expected: FAIL
diff --git a/tests/wpt/meta/html/semantics/scripting-1/the-script-element/module/modulepreload-referrer-check.html.ini b/tests/wpt/meta/html/semantics/scripting-1/the-script-element/module/modulepreload-referrer-check.html.ini
new file mode 100644
index 00000000000..40cc9718f09
--- /dev/null
+++ b/tests/wpt/meta/html/semantics/scripting-1/the-script-element/module/modulepreload-referrer-check.html.ini
@@ -0,0 +1,4 @@
+[modulepreload-referrer-check.html]
+  expected: TIMEOUT
+  [Modulepreload should send a referrer header]
+    expected: TIMEOUT
diff --git a/tests/wpt/meta/html/semantics/scripting-1/the-script-element/module/modulepreload-referrerpolicy.html.ini b/tests/wpt/meta/html/semantics/scripting-1/the-script-element/module/modulepreload-referrerpolicy.html.ini
new file mode 100644
index 00000000000..e4b412e6407
--- /dev/null
+++ b/tests/wpt/meta/html/semantics/scripting-1/the-script-element/module/modulepreload-referrerpolicy.html.ini
@@ -0,0 +1,22 @@
+[modulepreload-referrerpolicy.html]
+  expected: TIMEOUT
+  [Modulepreload should use default referrer policy]
+    expected: TIMEOUT
+
+  [Modulepreload with no-referrer policy should not send referrer]
+    expected: NOTRUN
+
+  [Modulepreload with origin policy should send origin-only referrer]
+    expected: NOTRUN
+
+  [Modulepreload with same-origin policy should send full referrer for same-origin requests]
+    expected: NOTRUN
+
+  [Modulepreload with strict-origin policy should send origin-only referrer]
+    expected: NOTRUN
+
+  [Modulepreload with strict-origin-when-cross-origin policy should send full referrer for same-origin requests]
+    expected: NOTRUN
+
+  [Modulepreload with unsafe-url policy should send full referrer]
+    expected: NOTRUN
diff --git a/tests/wpt/meta/html/semantics/the-button-element/command-and-commandfor/source-attribute-retargeting.tentative.html.ini b/tests/wpt/meta/html/semantics/the-button-element/command-and-commandfor/source-attribute-retargeting.html.ini
similarity index 88%
rename from tests/wpt/meta/html/semantics/the-button-element/command-and-commandfor/source-attribute-retargeting.tentative.html.ini
rename to tests/wpt/meta/html/semantics/the-button-element/command-and-commandfor/source-attribute-retargeting.html.ini
index c882098a91c..1c1b4b7381f 100644
--- a/tests/wpt/meta/html/semantics/the-button-element/command-and-commandfor/source-attribute-retargeting.tentative.html.ini
+++ b/tests/wpt/meta/html/semantics/the-button-element/command-and-commandfor/source-attribute-retargeting.html.ini
@@ -1,4 +1,4 @@
-[source-attribute-retargeting.tentative.html]
+[source-attribute-retargeting.html]
   [CommandEvent.source and ToggleEvent.source should be retargeted during and after event dispatch.]
     expected: FAIL
 
diff --git a/tests/wpt/meta/html/webappapis/scripting/events/event-handler-idl-attribute-realm.window.js.ini b/tests/wpt/meta/html/webappapis/scripting/events/event-handler-idl-attribute-realm.window.js.ini
new file mode 100644
index 00000000000..5ce0c325e81
--- /dev/null
+++ b/tests/wpt/meta/html/webappapis/scripting/events/event-handler-idl-attribute-realm.window.js.ini
@@ -0,0 +1,3 @@
+[event-handler-idl-attribute-realm.window.html]
+  [Event handler IDL attribute compilation errors must be fired on the element's document's global]
+    expected: FAIL
diff --git a/tests/wpt/meta/navigation-timing/test-navigation-type-reload.html.ini b/tests/wpt/meta/navigation-timing/test-navigation-type-reload.html.ini
index 816b087d78e..15bad29cb8c 100644
--- a/tests/wpt/meta/navigation-timing/test-navigation-type-reload.html.ini
+++ b/tests/wpt/meta/navigation-timing/test-navigation-type-reload.html.ini
@@ -19,3 +19,12 @@
 
   [Reload fetchStart > Original fetchStart]
     expected: FAIL
+
+  [Reload domComplete > Original domComplete]
+    expected: FAIL
+
+  [Reload loadEventEnd > Original loadEventEnd]
+    expected: FAIL
+
+  [Reload loadEventStart > Original loadEventStart]
+    expected: FAIL
diff --git a/tests/wpt/meta/preload/preload-error.sub.html.ini b/tests/wpt/meta/preload/preload-error.sub.html.ini
index d1f530471c8..205e9f38642 100644
--- a/tests/wpt/meta/preload/preload-error.sub.html.ini
+++ b/tests/wpt/meta/preload/preload-error.sub.html.ini
@@ -1,5 +1,4 @@
 [preload-error.sub.html]
-  expected: TIMEOUT
   [404 (image): main]
     expected: FAIL
 
diff --git a/tests/wpt/meta/preload/preload-resource-match.https.html.ini b/tests/wpt/meta/preload/preload-resource-match.https.html.ini
index 3aa7a6995a9..047c69efb94 100644
--- a/tests/wpt/meta/preload/preload-resource-match.https.html.ini
+++ b/tests/wpt/meta/preload/preload-resource-match.https.html.ini
@@ -24,41 +24,8 @@
   [Loading fetch (use-credentials) with link (anonymous) should discard the preloaded response]
     expected: FAIL
 
-  [Loading module (use-credentials) with link (no-cors) should discard the preloaded response]
-    expected: TIMEOUT
-
-  [Loading module (use-credentials) with link (anonymous) should discard the preloaded response]
-    expected: NOTRUN
-
-  [Loading module (use-credentials) with link (use-credentials) should reuse the preloaded response]
-    expected: NOTRUN
-
-  [Loading style (same-origin) with link (same-origin) should reuse the preloaded response]
-    expected: NOTRUN
-
-  [Loading style (no-cors) with link (no-cors) should reuse the preloaded response]
-    expected: NOTRUN
-
-  [Loading style (no-cors) with link (anonymous) should discard the preloaded response]
-    expected: NOTRUN
-
-  [Loading style (no-cors) with link (use-credentials) should discard the preloaded response]
-    expected: NOTRUN
-
-  [Loading style (anonymous) with link (no-cors) should discard the preloaded response]
-    expected: NOTRUN
-
-  [Loading style (anonymous) with link (anonymous) should reuse the preloaded response]
-    expected: NOTRUN
-
-  [Loading style (anonymous) with link (use-credentials) should discard the preloaded response]
-    expected: NOTRUN
-
-  [Loading style (use-credentials) with link (no-cors) should discard the preloaded response]
-    expected: NOTRUN
-
   [Loading style (use-credentials) with link (anonymous) should discard the preloaded response]
-    expected: NOTRUN
+    expected: TIMEOUT
 
   [Loading style (use-credentials) with link (use-credentials) should reuse the preloaded response]
     expected: NOTRUN
diff --git a/tests/wpt/meta/resource-timing/tentative/initiator-url/inline-document-write.html.ini b/tests/wpt/meta/resource-timing/tentative/initiator-url/inline-document-write.html.ini
new file mode 100644
index 00000000000..600dc2c85b5
--- /dev/null
+++ b/tests/wpt/meta/resource-timing/tentative/initiator-url/inline-document-write.html.ini
@@ -0,0 +1,9 @@
+[inline-document-write.html]
+  [The initiator Url for blue.png?inline-script-doc-write initiatorUrl from document-initiated must be 'http://web-platform.test:8000/resource-timing/tentative/initiator-url/inline-document-write.html']
+    expected: FAIL
+
+  [The initiator Url for empty_style.css?inline-script-doc-write initiatorUrl from document-initiated must be 'http://web-platform.test:8000/resource-timing/tentative/initiator-url/inline-document-write.html']
+    expected: FAIL
+
+  [The initiator Url for empty.js?doc-write initiatorUrl from document-initiated must be 'http://web-platform.test:8000/resource-timing/tentative/initiator-url/inline-document-write.html']
+    expected: FAIL
diff --git a/tests/wpt/meta/resource-timing/tentative/stylesheet-initiated.html.ini b/tests/wpt/meta/resource-timing/tentative/stylesheet-initiated.html.ini
index 495ce98da6a..b4af8bc760b 100644
--- a/tests/wpt/meta/resource-timing/tentative/stylesheet-initiated.html.ini
+++ b/tests/wpt/meta/resource-timing/tentative/stylesheet-initiated.html.ini
@@ -1,4 +1,4 @@
 [stylesheet-initiated.html]
-  expected: ERROR
+  expected: TIMEOUT
   [Ensure initiator Attribute matches with Stylesheet ResourceID]
     expected: TIMEOUT
diff --git a/tests/wpt/meta/shadow-dom/shadow-style-invalidation-vw-units.html.ini b/tests/wpt/meta/shadow-dom/shadow-style-invalidation-vw-units.html.ini
new file mode 100644
index 00000000000..d79a6a7d952
--- /dev/null
+++ b/tests/wpt/meta/shadow-dom/shadow-style-invalidation-vw-units.html.ini
@@ -0,0 +1,2 @@
+[shadow-style-invalidation-vw-units.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/trusted-types/trusted-types-navigation.html.ini b/tests/wpt/meta/trusted-types/trusted-types-navigation.html.ini
index 66133973a8c..23bae76e37e 100644
--- a/tests/wpt/meta/trusted-types/trusted-types-navigation.html.ini
+++ b/tests/wpt/meta/trusted-types/trusted-types-navigation.html.ini
@@ -50,7 +50,7 @@
 
 
 [trusted-types-navigation.html?31-35]
-  expected: CRASH
+  expected: TIMEOUT
   [Navigate a frame via form-submission with javascript:-urls w/ default policy in report-only mode.]
     expected: TIMEOUT
 
@@ -63,6 +63,9 @@
   [Navigate a window via form-submission with javascript:-urls w/ a default policy making the URL invalid in enforcing mode.]
     expected: NOTRUN
 
+  [Navigate a frame via form-submission with javascript:-urls in report-only mode.]
+    expected: FAIL
+
 
 [trusted-types-navigation.html?36-last]
   [Navigate a window via form-submission with javascript:-urls w/ a default policy making the URL invalid in report-only mode.]
@@ -70,9 +73,6 @@
 
 
 [trusted-types-navigation.html?26-30]
-  [Navigate a window via form-submission with javascript:-urls in report-only mode.]
-    expected: FAIL
-
   [Navigate a frame via form-submission with javascript:-urls in enforcing mode.]
     expected: FAIL
 
@@ -152,8 +152,5 @@
   [Navigate a window via anchor with javascript:-urls in enforcing mode.]
     expected: FAIL
 
-  [Navigate a window via anchor with javascript:-urls in report-only mode.]
-    expected: FAIL
-
   [Navigate a frame via anchor with javascript:-urls in enforcing mode.]
     expected: FAIL
diff --git a/tests/wpt/meta/webaudio/the-audio-api/the-scriptprocessornode-interface/simple-input-output.html.ini b/tests/wpt/meta/webaudio/the-audio-api/the-scriptprocessornode-interface/simple-input-output.html.ini
index 2c81bbf1e26..0d102599858 100644
--- a/tests/wpt/meta/webaudio/the-audio-api/the-scriptprocessornode-interface/simple-input-output.html.ini
+++ b/tests/wpt/meta/webaudio/the-audio-api/the-scriptprocessornode-interface/simple-input-output.html.ini
@@ -1,3 +1,6 @@
 [simple-input-output.html]
   [Executing "test"]
     expected: FAIL
+
+  [ScriptProcessor with stopped input source]
+    expected: FAIL
diff --git a/tests/wpt/meta/webaudio/the-audio-api/the-waveshapernode-interface/silent-inputs.html.ini b/tests/wpt/meta/webaudio/the-audio-api/the-waveshapernode-interface/silent-inputs.html.ini
index 22545f45570..3f19d61ada5 100644
--- a/tests/wpt/meta/webaudio/the-audio-api/the-waveshapernode-interface/silent-inputs.html.ini
+++ b/tests/wpt/meta/webaudio/the-audio-api/the-waveshapernode-interface/silent-inputs.html.ini
@@ -7,3 +7,12 @@
 
   [Executing "test-2"]
     expected: FAIL
+
+  [test-0: curve output is non-zero for silent inputs]
+    expected: FAIL
+
+  [test-1: 2x curve output is non-zero for silent inputs]
+    expected: FAIL
+
+  [test-2: curve output is non-zero for no inputs]
+    expected: FAIL
diff --git a/tests/wpt/meta/webdriver/tests/classic/perform_actions/navigation.py.ini b/tests/wpt/meta/webdriver/tests/classic/perform_actions/navigation.py.ini
new file mode 100644
index 00000000000..de6a7b8b5f8
--- /dev/null
+++ b/tests/wpt/meta/webdriver/tests/classic/perform_actions/navigation.py.ini
@@ -0,0 +1,2 @@
+[navigation.py]
+  expected: TIMEOUT
diff --git a/tests/wpt/meta/webxr/render_state_update.https.html.ini b/tests/wpt/meta/webxr/render_state_update.https.html.ini
deleted file mode 100644
index 0e57356683e..00000000000
--- a/tests/wpt/meta/webxr/render_state_update.https.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[render_state_update.https.html]
-  expected: ERROR
diff --git a/tests/wpt/meta/workers/constructors/Worker/Worker-constructor.html.ini b/tests/wpt/meta/workers/constructors/Worker/Worker-constructor.html.ini
deleted file mode 100644
index 80f9a4f15b8..00000000000
--- a/tests/wpt/meta/workers/constructors/Worker/Worker-constructor.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[Worker-constructor.html]
-  expected: ERROR
diff --git a/tests/wpt/tests/.github/workflows/safari_stable.yml b/tests/wpt/tests/.github/workflows/safari_stable.yml
index c0e8dedd260..ff8ffa8ed98 100644
--- a/tests/wpt/tests/.github/workflows/safari_stable.yml
+++ b/tests/wpt/tests/.github/workflows/safari_stable.yml
@@ -29,7 +29,7 @@ jobs:
     name: "All Tests: Safari (stable)"
     needs: check-workflow-run
     if: |
-      github.event_name != 'workflow_run' || fromJSON(needs.check-workflow-run.outputs.updated-refs)[0] != null
+      github.event_name != 'workflow_run' || fromJSON(needs.check-workflow-run.outputs.updated-refs)['refs/heads/epochs/daily'] != null
     uses: ./.github/workflows/safari-wptrunner.yml
     with:
       artifact-name: safari-results
@@ -37,3 +37,4 @@ jobs:
       safaridriver-diagnose: false
       matrix: '{"current-chunk": [1, 2, 3, 4, 5, 6, 7, 8], "total-chunks": [8]}'
       extra-options: --no-fail-on-unexpected
+      fetch-ref: ${{ fromJSON(needs.check-workflow-run.outputs.updated-refs || '{}')['refs/heads/epochs/daily'] }}
diff --git a/tests/wpt/tests/.github/workflows/safari_technology_preview.yml b/tests/wpt/tests/.github/workflows/safari_technology_preview.yml
index f024bb08ae2..c4c28ed87d0 100644
--- a/tests/wpt/tests/.github/workflows/safari_technology_preview.yml
+++ b/tests/wpt/tests/.github/workflows/safari_technology_preview.yml
@@ -29,7 +29,7 @@ jobs:
     name: "All Tests: Safari Technology Preview"
     needs: check-workflow-run
     if: |
-      github.event_name != 'workflow_run' || fromJSON(needs.check-workflow-run.outputs.updated-refs)[0] != null
+      github.event_name != 'workflow_run' || fromJSON(needs.check-workflow-run.outputs.updated-refs)['refs/heads/epochs/three_hourly'] != null
     uses: ./.github/workflows/safari-wptrunner.yml
     with:
       artifact-name: safari-technology-preview-results
@@ -37,3 +37,4 @@ jobs:
       safaridriver-diagnose: false
       matrix: '{"current-chunk": [1, 2, 3, 4, 5, 6, 7, 8], "total-chunks": [8]}'
       extra-options: --no-fail-on-unexpected
+      fetch-ref: ${{ fromJSON(needs.check-workflow-run.outputs.updated-refs || '{}')['refs/heads/epochs/three_hourly'] }}
diff --git a/tests/wpt/tests/.well-known/device-bound-sessions b/tests/wpt/tests/.well-known/device-bound-sessions
index 7944486181b..45686e0789f 100644
--- a/tests/wpt/tests/.well-known/device-bound-sessions
+++ b/tests/wpt/tests/.well-known/device-bound-sessions
@@ -1,8 +1,25 @@
 import json
 
 def main(request, response):
-    response_body = {
-        "registering_origins": ['https://www.' + request.headers.get('host').decode("utf-8")],
-    }
+    # Since the path to this file is .well-known, we can't use
+    # server-side substitution directly. Instead, get the value
+    # substitution would give us from `request`.
+    provider_domain = request.server.config.all_domains['']['']
+    relying_domain = request.server.config.all_domains['']['www']
+
+    provider_origin = f'https://{provider_domain}:{request.url_parts.port}'
+    relying_origin = f'https://{relying_domain}:{request.url_parts.port}'
+
+    host = request.headers.get('host').decode('utf-8')
+    response_body = None
+    if host.startswith(provider_domain):
+        response_body = {
+            "registering_origins": [relying_origin],
+            "relying_origins": [relying_origin],
+        }
+    elif host.startswith(relying_domain):
+        response_body = {
+            "provider_origin": provider_origin,
+        }
     return (200, [('Content-Type', 'application/json'), ('Set-Cookie', 'well_known_fetched=true; Path=/device-bound-session-credentials')],
             json.dumps(response_body))
diff --git a/tests/wpt/tests/accname/name/comp_name_from_pseudo_content_marker.tentative.html b/tests/wpt/tests/accname/name/comp_name_from_pseudo_content_marker.tentative.html
new file mode 100644
index 00000000000..8f6cb1a5a7d
--- /dev/null
+++ b/tests/wpt/tests/accname/name/comp_name_from_pseudo_content_marker.tentative.html
@@ -0,0 +1,142 @@
+<!doctype html>
+<html>
+<head>
+  <title>Name Comp: Name From Pseudo Content Marker</title>
+  <meta charset="utf-8">
+  <script src="/resources/testharness.js"></script>
+  <script src="/resources/testharnessreport.js"></script>
+  <script src="/resources/testdriver.js"></script>
+  <script src="/resources/testdriver-vendor.js"></script>
+  <script src="/resources/testdriver-actions.js"></script>
+  <script src="/wai-aria/scripts/aria-utils.js"></script>
+  <style type="text/css">
+
+    #ul-custom-ascii::marker {
+      content: "* ";
+    }
+
+    #ul-custom-emoji::marker {
+      content: "🚅 ";
+    }
+
+    #ul-custom-alted::marker {
+      content: "❧ " / "Bullet";
+    }
+
+    #ul-custom-empty::marker {
+      content: "🫥 " / "";
+    }
+
+    #ol-custom-ascii::marker {
+      content: "Two ";
+    }
+
+    #ol-custom-emoji::marker {
+      content: "🥉 ";
+    }
+
+    #ol-custom-alted::marker {
+      content: "🍀 " / "A four leaf clover ";
+    }
+
+    #ol-custom-empty::marker {
+      content: "⚄⚄ " / "";
+    }
+
+  </style>
+</head>
+<body>
+
+<p>Tests the <a href="https://w3c.github.io/accname/#comp_name_from_content_pseudo_element_marker">#comp_name_from_content_pseudo_element_marker</a> portions of the AccName <em>Name Computation</em> algorithm.</p>
+
+<ul>
+  <li id="ul-default">the Blue Sky</li>
+  <li id="ul-custom-ascii">might be announced as “asterisk”</li>
+  <li id="ul-custom-emoji">from Osaka to Kobe</li>
+  <li id="ul-custom-alted">that looks like a radish</li>
+  <li id="ul-custom-empty">Dodged a bullet</li>
+</ul>
+
+<ol>
+  <li id="ol-default">does not simply walk into Mordor</li>
+  <li id="ol-custom-ascii">to tango</li>
+  <li id="ol-custom-emoji">winner!</li>
+  <li id="ol-custom-alted">brings good luck</li>
+  <li id="ol-custom-empty">Puppy paws</li>
+</ol>
+
+<button
+  class="ex"
+  aria-labelledby="ul-default"
+  data-testname="name from ul > listitem with default ::marker"
+  data-expectedlabel="• the Blue Sky"
+>Label</button>
+
+<button
+  class="ex"
+  aria-labelledby="ul-custom-ascii"
+  data-testname="name from ul > listitem with custom ASCII ::marker"
+  data-expectedlabel="* might be announced as “asterisk”"
+>Label</button>
+
+<button
+  class="ex"
+  aria-labelledby="ul-custom-emoji"
+  data-testname="name from ul > listitem with custom emoji ::marker"
+  data-expectedlabel="🚅 from Osaka to Kobe"
+>Label</button>
+
+<button
+  class="ex"
+  aria-labelledby="ul-custom-alted"
+  data-testname="name from ul > listitem with custom ::marker with explicit alt text"
+  data-expectedlabel="Bullet that looks like a radish"
+>Label</button>
+
+<button
+  class="ex"
+  aria-labelledby="ul-custom-empty"
+  data-testname="name from ul > listitem with custom ::marker with explicit empty alt text"
+  data-expectedlabel="Dodged a bullet"
+>Label</button>
+
+<button
+  class="ex"
+  aria-labelledby="ol-default"
+  data-testname="name from ol > listitem with default ::marker"
+  data-expectedlabel="1. does not simply walk into Mordor"
+>Label</button>
+
+<button
+  class="ex"
+  aria-labelledby="ol-custom-ascii"
+  data-testname="name from ol > listitem with custom ASCII ::marker"
+  data-expectedlabel="Two to tango"
+>Label</button>
+
+<button
+  class="ex"
+  aria-labelledby="ol-custom-emoji"
+  data-testname="name from ol > listitem with custom emoji ::marker"
+  data-expectedlabel="🥉 winner!"
+>Label</button>
+
+<button
+  class="ex"
+  aria-labelledby="ol-custom-alted"
+  data-testname="name from ol > listitem with custom ::marker with explicit alt text"
+  data-expectedlabel="A four leaf clover brings good luck"
+>Label</button>
+
+<button
+  class="ex"
+  aria-labelledby="ol-custom-empty"
+  data-testname="name from ol > listitem with custom ::marker with empty alt text"
+  data-expectedlabel="Puppy paws"
+>Label</button>
+
+<script>
+AriaUtils.verifyLabelsBySelector(".ex");
+</script>
+</body>
+</html>
diff --git a/tests/wpt/tests/badging/resources/badge_iframe.html b/tests/wpt/tests/badging/resources/badge_iframe.html
new file mode 100644
index 00000000000..29e8b529012
--- /dev/null
+++ b/tests/wpt/tests/badging/resources/badge_iframe.html
@@ -0,0 +1,5 @@
+<!DOCTYPE html>
+<meta charset="utf-8" />
+<title>iframe to call badge methods</title>
+<script src="message-handler.js"></script>
+<h2>badge iframe</h2>
diff --git a/tests/wpt/tests/badging/resources/message-handler.js b/tests/wpt/tests/badging/resources/message-handler.js
new file mode 100644
index 00000000000..c308e6f432a
--- /dev/null
+++ b/tests/wpt/tests/badging/resources/message-handler.js
@@ -0,0 +1,18 @@
+"use strict";
+this.addEventListener("message", async (event) => {
+  const { method, value } = event.data;
+  const postMessageData = { method };
+  try {
+    await navigator[method](value);
+    postMessageData.status = "success";
+  } catch (e) {
+    postMessageData.status = "error";
+    postMessageData.exceptionType = e.name;
+    postMessageData.message = e.message;
+  } finally {
+    event.source.postMessage(postMessageData, "*");
+  }
+});
+
+const target = this.parent ? this.parent : this;
+target.postMessage("ready", "*");
diff --git a/tests/wpt/tests/badging/resources/setAppBadge_iframe.html b/tests/wpt/tests/badging/resources/setAppBadge_iframe.html
deleted file mode 100644
index 8738099658f..00000000000
--- a/tests/wpt/tests/badging/resources/setAppBadge_iframe.html
+++ /dev/null
@@ -1,33 +0,0 @@
-<!DOCTYPE html>
-<meta charset="utf-8" />
-<title>setAppBadge iframe</title>
-<script>
-  async function callSetAppBadge() {
-    const postMessageData = { message: "callSetAppBadge" };
-
-    try {
-      await navigator.setAppBadge();
-      postMessageData.status = "success";
-    } catch (e) {
-      if (e instanceof DOMException) {
-        postMessageData.status = "error";
-        postMessageData.exceptionType = e.name;
-      } else {
-        postMessageData.status = "unknown_error";
-        postMessageData.error = e.toString();
-      }
-    } finally {
-      window.parent.postMessage(postMessageData, "*");
-    }
-  }
-
-  window.addEventListener("message", async (event) => {
-    switch (event.data) {
-      case "callSetAppBadge":
-        await callSetAppBadge();
-        break;
-      default:
-        throw new Error(`Unexpected message: ${event.data}`);
-    }
-  });
-</script>
diff --git a/tests/wpt/tests/badging/setAppBadge_cross_origin.sub.https.html b/tests/wpt/tests/badging/setAppBadge_cross_origin.sub.https.html
index 7e548879bcb..55ca1e1758e 100644
--- a/tests/wpt/tests/badging/setAppBadge_cross_origin.sub.https.html
+++ b/tests/wpt/tests/badging/setAppBadge_cross_origin.sub.https.html
@@ -3,62 +3,166 @@
 <title>Test cross-origin and same-origin use of setAppBadge</title>
 <script src="/resources/testharness.js"></script>
 <script src="/resources/testharnessreport.js"></script>
-<iframe id="testIframe"></iframe>
+<body></body>
 <script>
-  const iframe = document.getElementById("testIframe");
-
-  function sendMessageToIframe(message) {
+  function callMethodThroughIframe(iframe, data) {
     return new Promise((resolve) => {
       window.addEventListener("message", function listener(event) {
-        const { messageId } = event.data;
-        if (event.data.message !== message) return;
+        if (event.data.method !== data.method) return;
         window.removeEventListener("message", listener);
         resolve(event);
       });
-      iframe.contentWindow.postMessage("callSetAppBadge", "*");
+      iframe.postMessage(data, "*");
     });
   }
 
   function loadIframe(src) {
+    const iframe = document.createElement("iframe");
     return new Promise((resolve) => {
-      iframe.addEventListener("load", resolve);
+      window.addEventListener("message", function readyListener(ev) {
+        if (ev.data === "ready") {
+          window.removeEventListener("message", readyListener);
+          resolve(iframe);
+        }
+      });
       iframe.src = src;
+      document.body.appendChild(iframe);
     });
   }
 
-  test(() => {
-    assert_true(
-      "setAppBadge" in navigator,
-      "navigator.setAppBadge should be available"
-    );
-  }, "Test that navigator.setAppBadge is available");
-
   promise_test(async () => {
-    await loadIframe(
-      `https://{{hosts[][]}}:{{ports[https][1]}}/badging/resources/setAppBadge_iframe.html`
-    );
-    const event = await sendMessageToIframe("callSetAppBadge");
-    const { exceptionType, status } = event.data;
-    assert_equals(
-      status,
-      "error",
-      "setAppBadge should have rejected with an error"
+    const iframe = await loadIframe(
+      `https://{{hosts[][]}}:{{ports[https][1]}}/badging/resources/badge_iframe.html`
     );
+
+    const event = await callMethodThroughIframe(iframe, {
+      method: "setAppBadge",
+      value: 1,
+    });
+
+    const { exceptionType } = event.data;
+
     assert_equals(
       exceptionType,
       "SecurityError",
       "setAppBadge should throw a SecurityError when called in a cross-origin iframe"
     );
+    iframe.remove();
   }, "Test that calling setAppBadge in a cross-origin iframe throws a SecurityError");
 
   promise_test(async () => {
-    await loadIframe("./resources/setAppBadge_iframe.html");
-    const event = await sendMessageToIframe("callSetAppBadge");
-    const { status } = event.data;
+    const iframe = await loadIframe(
+      `https://{{hosts[][]}}:{{ports[https][1]}}/badging/resources/badge_iframe.html`
+    );
+
+    const event = await callMethodThroughIframe(iframe, {
+      method: "clearAppBadge",
+    });
+
     assert_equals(
-      status,
+      event.data.exceptionType,
+      "SecurityError",
+      "clearAppBadge should throw a SecurityError when called in a cross-origin iframe"
+    );
+    iframe.remove();
+  }, "Test that calling clearAppBadge in a cross-origin iframe throws a SecurityError");
+
+  promise_test(async () => {
+    const iframe = await loadIframe("./resources/badge_iframe.html");
+    const event = await callMethodThroughIframe(iframe, {
+      method: "setAppBadge",
+      value: 1,
+    });
+
+    assert_equals(
+      event.data.status,
       "success",
       "setAppBadge should succeed when called in a same-origin iframe"
     );
+    iframe.remove();
   }, "Test that calling setAppBadge in a same-origin iframe succeeds");
+
+  promise_test(async () => {
+    const iframe = await loadIframe("./resources/badge_iframe.html");
+    const event = await callMethodThroughIframe(iframe, {
+      method: "clearAppBadge",
+    });
+
+    assert_equals(
+      event.data.status,
+      "success",
+      "clearAppBadge should succeed when called in a same-origin iframe"
+    );
+    iframe.remove();
+  }, "Test that calling clearAppBadge in a same-origin iframe succeeds");
+
+  promise_test(async () => {
+    // Set badge on top level frame
+    await navigator.setAppBadge(1);
+
+    // Load same-origin iframe
+    const iframe = await loadIframe("./resources/badge_iframe.html");
+
+    // Set badge in iframe
+    let event = await callMethodThroughIframe(iframe, {
+      method: "setAppBadge",
+      value: 1,
+    });
+    assert_equals(
+      event.data.status,
+      "success",
+      "setAppBadge should succeed when called in a same-origin iframe"
+    );
+
+    // Clear badge in iframe
+    event = await callMethodThroughIframe(iframe, {
+      method: "clearAppBadge",
+    });
+    assert_equals(
+      event.data.status,
+      "success",
+      "clearAppBadge should succeed when called in a same-origin iframe"
+    );
+    iframe.remove();
+  }, "Test calling setAppBadge and clearAppBadge in a same-origin iframe after setting badge on the top level frame");
+
+  promise_test(async () => {
+    // Load two same-origin iframes
+    const iframe1 = await loadIframe("./resources/badge_iframe.html");
+    const iframe2 = await loadIframe("./resources/badge_iframe.html");
+
+    // Set badge in the first iframe
+    let event1 = await callMethodThroughIframe(iframe1, {
+      method: "setAppBadge",
+      value: 1,
+    });
+    assert_equals(
+      event1.data.status,
+      "success",
+      "setAppBadge should succeed when called in the first same-origin iframe"
+    );
+
+    // Set badge in the second iframe
+    let event2 = await callMethodThroughIframe(iframe2, {
+      method: "setAppBadge",
+      value: 2,
+    });
+    assert_equals(
+      event2.data.status,
+      "success",
+      "setAppBadge should succeed when called in the second same-origin iframe"
+    );
+
+    // Clear badge in the first iframe
+    event1 = await callMethodThroughIframe(iframe1, {
+      method: "clearAppBadge",
+    });
+    assert_equals(
+      event1.data.status,
+      "success",
+      "clearAppBadge should succeed when called in the first same-origin iframe"
+    );
+    iframe1.remove();
+    iframe2.remove();
+  }, "Test badge behavior in multiple same-origin iframes");
 </script>
diff --git a/tests/wpt/tests/content-security-policy/reporting/report-multiple-violations-02.html b/tests/wpt/tests/content-security-policy/reporting/report-multiple-violations-02.html
index cc64f151a3b..b5b6bc55291 100644
--- a/tests/wpt/tests/content-security-policy/reporting/report-multiple-violations-02.html
+++ b/tests/wpt/tests/content-security-policy/reporting/report-multiple-violations-02.html
@@ -11,9 +11,11 @@
 </head>
 <body>
   <script>
-    for (var i = 0; i<5; i++)
-      setTimeout("document.body.innerHTML += ('<p>PASS: setTimeout #" + i + " executed.');", 0);
+    for (var i = 0; i<5; i++) {
+      setTimeout("document.body.innerHTML += ('<p>PASS: setTimeout executed.');", 0);
+    }
+    setTimeout("document.body.innerHTML += ('<p>PASS: different setTimeout executed.');", 0);
   </script>
-  <script async defer src='../support/checkReport.sub.js?reportField=violated-directive&reportValue=script-src%20%27unsafe-inline%27%20%27self%27&reportCount=1'></script>
+  <script async defer src='../support/checkReport.sub.js?reportField=violated-directive&reportValue=script-src%20%27unsafe-inline%27%20%27self%27&reportCount=2'></script>
 </body>
 </html>
diff --git a/tests/wpt/tests/content-security-policy/sandbox/form-submission-blocked-by-sandboxing.html b/tests/wpt/tests/content-security-policy/sandbox/form-submission-blocked-by-sandboxing.html
deleted file mode 100644
index 4c717a18fd8..00000000000
--- a/tests/wpt/tests/content-security-policy/sandbox/form-submission-blocked-by-sandboxing.html
+++ /dev/null
@@ -1,26 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head>
-  <link rel="help" href="https://html.spec.whatwg.org/multipage/#concept-form-submit">
-  <title>Test that form submission is blocked by a document's active sandboxing flags</title>
-  <script src="/resources/testharness.js"></script>
-  <script src="/resources/testharnessreport.js"></script>
-  </head>
-  <body>
-    <form id="f">
-      <input type="hidden" value="test" />
-    </form>
-    <script>
-      async_test((t) => {
-        var f = document.getElementById('f')
-
-        f.addEventListener('submit', t.unreached_func(
-          'form should not be submitted due to sandboxing flags'
-        ));
-
-        f.submit();
-        t.step_timeout(() => t.done(), 500);
-      }, 'csp-derived sandboxing flags prevent form submission.')
-    </script>
-  </body>
-</html>
diff --git a/tests/wpt/tests/content-security-policy/sandbox/form-submission-blocked-by-sandboxing.html.headers b/tests/wpt/tests/content-security-policy/sandbox/form-submission-blocked-by-sandboxing.html.headers
deleted file mode 100644
index 1efcf8c226f..00000000000
--- a/tests/wpt/tests/content-security-policy/sandbox/form-submission-blocked-by-sandboxing.html.headers
+++ /dev/null
@@ -1 +0,0 @@
-Content-Security-Policy: sandbox allow-scripts
diff --git a/tests/wpt/tests/content-security-policy/script-src/script-src-trusted_types_eval_DedicatedWorker.html b/tests/wpt/tests/content-security-policy/script-src/script-src-trusted_types_eval_DedicatedWorker.html
new file mode 100644
index 00000000000..026130b373e
--- /dev/null
+++ b/tests/wpt/tests/content-security-policy/script-src/script-src-trusted_types_eval_DedicatedWorker.html
@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id="log"></div>
+<script>
+  // WebKit test runner assumes the tests always run in the same order, so make
+  // sure fetch_tests_from_worker tests run sequentially.
+  setup({explicit_done: true});
+  (async function() {
+    await fetch_tests_from_worker(new Worker("support/script-src-trusted_types_eval_with_require_trusted_types_eval_DedicatedWorker.js"));
+    await fetch_tests_from_worker(new Worker("support/script-src-trusted_types_eval_without_require_trusted_types_eval_DedicatedWorker.js"));
+    await fetch_tests_from_worker(new Worker("support/script-src-trusted_types_eval_with_report_only_require_trusted_types_eval_DedicatedWorker.js"));
+    done();
+  })();
+</script>
diff --git a/tests/wpt/tests/content-security-policy/script-src/support/script-src-trusted_types_eval_with_report_only_require_trusted_types_eval_DedicatedWorker.js b/tests/wpt/tests/content-security-policy/script-src/support/script-src-trusted_types_eval_with_report_only_require_trusted_types_eval_DedicatedWorker.js
new file mode 100644
index 00000000000..61681fc4e08
--- /dev/null
+++ b/tests/wpt/tests/content-security-policy/script-src/support/script-src-trusted_types_eval_with_report_only_require_trusted_types_eval_DedicatedWorker.js
@@ -0,0 +1,28 @@
+const testSetupPolicy = trustedTypes.createPolicy("p", { createScriptURL: s => s });
+importScripts(testSetupPolicy.createScriptURL("/resources/testharness.js"));
+
+trustedTypes.createPolicy('default', {createScript: s => s});
+
+var evalScriptRan = false;
+
+async_test(function(t) {
+  var eventHandler = t.step_func_done(function(e) {
+    assert_false(evalScriptRan);
+    assert_equals(e.effectiveDirective, 'script-src');
+    assert_equals(e.blockedURI, 'eval');
+  });
+  self.addEventListener('securitypolicyviolation', eventHandler);
+  t.add_cleanup(() => {
+    self.removeEventListener('securitypolicyviolation', eventHandler);
+  });
+  assert_throws_js(Error,
+    function() {
+      try {
+        eval("evalScriptRan = true;");
+      } catch (e) {
+        throw new Error();
+    }
+  });
+}, "Scripts injected via direct `eval` are not allowed with `trusted-types-eval` when `require-trusted-types-for 'script'` is report only (Dedicated Worker).");
+
+done();
diff --git a/tests/wpt/tests/content-security-policy/script-src/support/script-src-trusted_types_eval_with_report_only_require_trusted_types_eval_DedicatedWorker.js.headers b/tests/wpt/tests/content-security-policy/script-src/support/script-src-trusted_types_eval_with_report_only_require_trusted_types_eval_DedicatedWorker.js.headers
new file mode 100644
index 00000000000..13688cefecd
--- /dev/null
+++ b/tests/wpt/tests/content-security-policy/script-src/support/script-src-trusted_types_eval_with_report_only_require_trusted_types_eval_DedicatedWorker.js.headers
@@ -0,0 +1,2 @@
+Content-Security-Policy: script-src 'self' 'trusted-types-eval';
+Content-Security-Policy-Report-Only: require-trusted-types-for 'script';
diff --git a/tests/wpt/tests/content-security-policy/script-src/support/script-src-trusted_types_eval_with_require_trusted_types_eval_DedicatedWorker.js b/tests/wpt/tests/content-security-policy/script-src/support/script-src-trusted_types_eval_with_require_trusted_types_eval_DedicatedWorker.js
new file mode 100644
index 00000000000..c4e52b2fc16
--- /dev/null
+++ b/tests/wpt/tests/content-security-policy/script-src/support/script-src-trusted_types_eval_with_require_trusted_types_eval_DedicatedWorker.js
@@ -0,0 +1,23 @@
+const testSetupPolicy = trustedTypes.createPolicy("p", { createScriptURL: s => s });
+importScripts(testSetupPolicy.createScriptURL("/resources/testharness.js"));
+
+trustedTypes.createPolicy('default', {createScript: s => s});
+
+var evalScriptRan = false;
+
+async_test(function(t) {
+  var eventHandler = t.unreached_func('No CSP violation report has fired.');
+  self.addEventListener('securitypolicyviolation', eventHandler);
+  t.add_cleanup(() => {
+    self.removeEventListener('securitypolicyviolation', eventHandler);
+  });
+  try {
+    eval("evalScriptRan = true;");
+  } catch (e) {
+    assert_unreached("`eval` should be allowed with `trusted-types-eval` and `require-trusted-types-for 'script'`.");
+  }
+  assert_true(evalScriptRan);
+  t.done();
+}, "Script injected via direct `eval` is allowed with `trusted-types-eval` and `require-trusted-types-for 'script'` (Dedicated Worker).");
+
+done();
diff --git a/tests/wpt/tests/content-security-policy/script-src/support/script-src-trusted_types_eval_with_require_trusted_types_eval_DedicatedWorker.js.headers b/tests/wpt/tests/content-security-policy/script-src/support/script-src-trusted_types_eval_with_require_trusted_types_eval_DedicatedWorker.js.headers
new file mode 100644
index 00000000000..7375add9996
--- /dev/null
+++ b/tests/wpt/tests/content-security-policy/script-src/support/script-src-trusted_types_eval_with_require_trusted_types_eval_DedicatedWorker.js.headers
@@ -0,0 +1 @@
+Content-Security-Policy: script-src 'self' 'trusted-types-eval'; require-trusted-types-for 'script';
diff --git a/tests/wpt/tests/content-security-policy/script-src/support/script-src-trusted_types_eval_without_require_trusted_types_eval_DedicatedWorker.js b/tests/wpt/tests/content-security-policy/script-src/support/script-src-trusted_types_eval_without_require_trusted_types_eval_DedicatedWorker.js
new file mode 100644
index 00000000000..d4cbd29b492
--- /dev/null
+++ b/tests/wpt/tests/content-security-policy/script-src/support/script-src-trusted_types_eval_without_require_trusted_types_eval_DedicatedWorker.js
@@ -0,0 +1,28 @@
+const testSetupPolicy = trustedTypes.createPolicy("p", { createScriptURL: s => s });
+importScripts(testSetupPolicy.createScriptURL("/resources/testharness.js"));
+
+trustedTypes.createPolicy('default', {createScript: s => s});
+
+var evalScriptRan = false;
+
+async_test(function(t) {
+  var eventHandler = t.step_func_done(function(e) {
+    assert_false(evalScriptRan);
+    assert_equals(e.effectiveDirective, 'script-src');
+    assert_equals(e.blockedURI, 'eval');
+  });
+  self.addEventListener('securitypolicyviolation', eventHandler);
+  t.add_cleanup(() => {
+    self.removeEventListener('securitypolicyviolation', eventHandler);
+  });
+  assert_throws_js(Error,
+    function() {
+      try {
+        eval("evalScriptRan = true;");
+      } catch (e) {
+        throw new Error();
+    }
+  });
+}, "Scripts injected via direct `eval` are not allowed with `trusted-types-eval` without `require-trusted-types-for 'script'` (DedicatedWorker).");
+
+done();
diff --git a/tests/wpt/tests/content-security-policy/script-src/support/script-src-trusted_types_eval_without_require_trusted_types_eval_DedicatedWorker.js.headers b/tests/wpt/tests/content-security-policy/script-src/support/script-src-trusted_types_eval_without_require_trusted_types_eval_DedicatedWorker.js.headers
new file mode 100644
index 00000000000..74266149879
--- /dev/null
+++ b/tests/wpt/tests/content-security-policy/script-src/support/script-src-trusted_types_eval_without_require_trusted_types_eval_DedicatedWorker.js.headers
@@ -0,0 +1 @@
+Content-Security-Policy: script-src 'self' 'trusted-types-eval';
diff --git a/tests/wpt/tests/css/CSS2/text/text-indent-intrinsic-003-ref.xht b/tests/wpt/tests/css/CSS2/text/text-indent-intrinsic-003-ref.xht
index 5c021eb8a58..34fafaa091b 100644
--- a/tests/wpt/tests/css/CSS2/text/text-indent-intrinsic-003-ref.xht
+++ b/tests/wpt/tests/css/CSS2/text/text-indent-intrinsic-003-ref.xht
@@ -15,10 +15,10 @@ body &gt; div, body &gt; pre {
 
 <div style="width: 0"></div>
 <div style="width: 2em"></div>
-<div style="width: 0"></div>
 <div style="width: 1em"></div>
 <div style="width: 3em"></div>
 <div style="width: 3em"></div>
+<div style="width: 3em"></div>
 <div style="width: 1em"></div>
 <div style="width: 2em"></div>
 <div style="width: 5em"></div>
@@ -26,4 +26,4 @@ body &gt; div, body &gt; pre {
 
 
 
-</body></html>
\ No newline at end of file
+</body></html>
diff --git a/tests/wpt/tests/css/CSS2/text/text-indent-intrinsic-004-ref.xht b/tests/wpt/tests/css/CSS2/text/text-indent-intrinsic-004-ref.xht
index 472fae81c9c..6e65edee78a 100644
--- a/tests/wpt/tests/css/CSS2/text/text-indent-intrinsic-004-ref.xht
+++ b/tests/wpt/tests/css/CSS2/text/text-indent-intrinsic-004-ref.xht
@@ -15,8 +15,8 @@ body &gt; div, body &gt; pre {
 
 <div style="width: 0"></div>
 <div style="width: 2em"></div>
-<div style="width: 0"></div>
 <div style="width: 1em"></div>
+<div style="width: 3em"></div>
 <div style="width: 4em"></div>
 <div style="width: 4em"></div>
 <div style="width: 1em"></div>
@@ -26,4 +26,4 @@ body &gt; div, body &gt; pre {
 
 
 
-</body></html>
\ No newline at end of file
+</body></html>
diff --git a/tests/wpt/tests/css/css-anchor-position/anchor-name-006.html b/tests/wpt/tests/css/css-anchor-position/anchor-name-006.html
new file mode 100644
index 00000000000..1ad784c3c87
--- /dev/null
+++ b/tests/wpt/tests/css/css-anchor-position/anchor-name-006.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<title>An anchor in nested fixedpos should be acceptable for an anchor-positioned element on the outside</title>
+<link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
+<link rel="help" href="https://issues.chromium.org/issues/428354426">
+<style>
+  #overlay {
+    position: fixed;
+    position-anchor: --a;
+    width: anchor-size(width);
+    height: anchor-size(height);
+    background: green;
+  }
+</style>
+<link rel="match" href="../reference/ref-filled-green-100px-square.xht">
+<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+<div style="position:fixed;">
+  <div style="position:fixed;">
+    <div style="anchor-name:--a; width:100px; height:100px; background:red;"></div>
+  </div>
+</div>
+<div id="overlay"></div>
diff --git a/tests/wpt/tests/css/css-anchor-position/anchor-name-007.html b/tests/wpt/tests/css/css-anchor-position/anchor-name-007.html
new file mode 100644
index 00000000000..27b7432b1af
--- /dev/null
+++ b/tests/wpt/tests/css/css-anchor-position/anchor-name-007.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<title>An anchor inside three fixedpos containers should be acceptable for an anchor-positioned element on the outside</title>
+<link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
+<link rel="help" href="https://issues.chromium.org/issues/428354426">
+<style>
+  #overlay {
+    position: fixed;
+    position-anchor: --a;
+    width: anchor-size(width);
+    height: anchor-size(height);
+    background: green;
+  }
+</style>
+<link rel="match" href="../reference/ref-filled-green-100px-square.xht">
+<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+<div style="position:fixed;">
+  <div style="position:fixed;">
+    <div style="position:fixed;">
+      <div style="anchor-name:--a; width:100px; height:100px; background:red;"></div>
+    </div>
+  </div>
+</div>
+<div id="overlay"></div>
diff --git a/tests/wpt/tests/css/css-anchor-position/container-queries/anchored-child-transition.html b/tests/wpt/tests/css/css-anchor-position/container-queries/anchored-child-transition.html
new file mode 100644
index 00000000000..f6a25609571
--- /dev/null
+++ b/tests/wpt/tests/css/css-anchor-position/container-queries/anchored-child-transition.html
@@ -0,0 +1,43 @@
+<!DOCTYPE html>
+<title>CSS Anchor Positioning Test: Transition on anchored element child with anchored() query</title>
+<link rel="help" href="https://drafts.csswg.org/css-anchor-position-2/#anchored-container-queries">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<style>
+  #anchor {
+    anchor-name: --a;
+  }
+  #container {
+    container-type: anchored;
+    position: absolute;
+    position-anchor: --a;
+    position-area: top;
+    position-try-fallbacks: flip-block;
+  }
+  #child {
+    scale: 1;
+  }
+  #child.large {
+    scale: 2;
+  }
+  @container anchored(fallback: flip-block) {
+    #child {
+      transition: scale 1000s steps(2, start);
+    }
+  }
+</style>
+<div id="anchor"></div>
+<div id="container">
+  <div id="child"></div>
+</div>
+<script>
+  test(() => {
+    assert_equals(getComputedStyle(child).scale, "1");
+  }, "Initial scale is 1");
+
+  test(() => {
+    container.style.height = "200px"; // Trigger fallback which sets the transition property
+    child.classList.toggle("large"); // Trigger scale transition
+    assert_equals(getComputedStyle(child).scale, "1.5");
+  }, "Start transition of scale property on anchored child");
+</script>
diff --git a/tests/wpt/tests/css/css-anchor-position/container-queries/anchored-fallback-basic.html b/tests/wpt/tests/css/css-anchor-position/container-queries/anchored-fallback-basic.html
new file mode 100644
index 00000000000..9973512b820
--- /dev/null
+++ b/tests/wpt/tests/css/css-anchor-position/container-queries/anchored-fallback-basic.html
@@ -0,0 +1,52 @@
+<!DOCTYPE html>
+<title>CSS Conditional Test: Basic @container anchored(fallback) support</title>
+<link rel="help" href="https://drafts.csswg.org/css-anchor-position-2/#anchored-container-queries">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/css-conditional/container-queries/support/cq-testcommon.js"></script>
+<style>
+  body { margin: 0; }
+  #anchor {
+    anchor-name: --a;
+    margin-top: 100px;
+    width: 100px;
+    height: 100px;
+  }
+  .anchored {
+    position: absolute;
+    position-anchor: --a;
+    position-area: top;
+    position-try-fallbacks: flip-block;
+    width: 100px;
+    height: 100px;
+    container-type: anchored;
+  }
+  .anchored + .anchored {
+    /* Too tall to fit over the anchor to trigger fallback */
+    height: 200px;
+  }
+  @container anchored(fallback: none) {
+    div { --fallback: no; }
+  }
+  @container anchored(fallback: flip-block) {
+    div { --fallback: yes; }
+  }
+</style>
+<div id="anchor"></div>
+<div class="anchored">
+  <div id="t1"></div>
+</div>
+<div class="anchored">
+  <div id="t2"></div>
+</div>
+<script>
+  test(() => {
+    assert_equals(document.querySelector(".anchored").offsetTop, 0);
+    assert_equals(getComputedStyle(t1).getPropertyValue("--fallback"), "no");
+  }, "@container anchored() without applied fallback");
+
+  test(() => {
+    assert_equals(document.querySelector(".anchored + .anchored").offsetTop, 200);
+    assert_equals(getComputedStyle(t2).getPropertyValue("--fallback"), "yes");
+  }, "@container anchored() with fallback applied");
+</script>
diff --git a/tests/wpt/tests/css/css-anchor-position/container-queries/anchored-fallback-color-change.html b/tests/wpt/tests/css/css-anchor-position/container-queries/anchored-fallback-color-change.html
new file mode 100644
index 00000000000..5437e3b9a28
--- /dev/null
+++ b/tests/wpt/tests/css/css-anchor-position/container-queries/anchored-fallback-color-change.html
@@ -0,0 +1,60 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>CSS Conditional Test: @container anchored(fallback) changes background-color</title>
+<link rel="help" href="https://drafts.csswg.org/css-anchor-position-2/#anchored-container-queries">
+<link rel="match" href="../../reference/ref-filled-green-100px-square-only.html">
+<script src="/common/reftest-wait.js"></script>
+<style>
+  #wrapper {
+    position: relative;
+    height: 200px;
+  }
+  #anchor {
+    position: relative;
+    anchor-name: --a;
+    width: 100px;
+    height: 100px;
+  }
+  #anchored {
+    position: absolute;
+    position-anchor: --a;
+    position-area: top;
+    position-try-fallbacks: flip-block;
+    width: 100px;
+    height: 100px;
+    container-type: anchored;
+    background-color: red;
+  }
+  #target {
+    position: absolute;
+    width: 100px;
+    height: 100px;
+    left: 100px;
+  }
+  @container anchored(fallback: none) {
+    #target {
+      background-color: green;
+      left: auto;
+    }
+  }
+  @container anchored(fallback: flip-block) {
+    #target {
+      background-color: red;
+    }
+  }
+</style>
+<p>Test passes if there is a filled green square.</p>
+<div id="wrapper">
+  <div id="anchor"></div>
+  <div id="anchored">
+    <div id="target"></div>
+  </div>
+</div>
+<script>
+  requestAnimationFrame(() => {
+    requestAnimationFrame(() => {
+      anchor.style.top = "100px";
+      takeScreenshot();
+    });
+  });
+</script>
diff --git a/tests/wpt/tests/css/css-anchor-position/container-queries/anchored-fallback-display-change.html b/tests/wpt/tests/css/css-anchor-position/container-queries/anchored-fallback-display-change.html
new file mode 100644
index 00000000000..7efc33e6a72
--- /dev/null
+++ b/tests/wpt/tests/css/css-anchor-position/container-queries/anchored-fallback-display-change.html
@@ -0,0 +1,47 @@
+<!DOCTYPE html>
+<title>CSS Conditional Test: @container anchored(fallback) changes display type</title>
+<link rel="help" href="https://drafts.csswg.org/css-anchor-position-2/#anchored-container-queries">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/css-conditional/container-queries/support/cq-testcommon.js"></script>
+<style>
+  body { margin: 0; }
+  #anchor {
+    anchor-name: --a;
+    margin-top: 100px;
+    width: 100px;
+    height: 100px;
+  }
+  #anchored {
+    position: absolute;
+    position-anchor: --a;
+    position-area: top;
+    position-try-fallbacks: flip-block;
+    width: 100px;
+    height: 100px;
+    container-type: anchored;
+  }
+  #t1 { height: 100%; }
+  @container anchored(fallback: none) {
+    #t1 { display: none; }
+  }
+  @container anchored(fallback: flip-block) {
+    #t1 { display: block; }
+  }
+</style>
+<div id="anchor"></div>
+<div id="anchored">
+  <span id="t1"></span>
+</div>
+<script>
+  test(() => {
+    assert_equals(anchored.offsetTop, 0, "Non-fallback rendering");
+    assert_equals(t1.offsetHeight, 0, "display:none - zero offsetHeight");
+  }, "@container anchored() without applied fallback");
+
+  test(() => {
+    anchor.style.marginTop = "50px"; // Trigger fallback
+    assert_equals(anchored.offsetTop, 150, "Anchored element rendered below anchor");
+      assert_equals(t1.offsetHeight, 100, "Fallback applies display:block");
+  }, "@container anchored() with fallback applied");
+</script>
diff --git a/tests/wpt/tests/css/css-anchor-position/container-queries/anchored-fallback-name.html b/tests/wpt/tests/css/css-anchor-position/container-queries/anchored-fallback-name.html
new file mode 100644
index 00000000000..405004c9b31
--- /dev/null
+++ b/tests/wpt/tests/css/css-anchor-position/container-queries/anchored-fallback-name.html
@@ -0,0 +1,57 @@
+<!DOCTYPE html>
+<title>CSS Conditional Test: @container anchored(fallback) matching &lt;custom-ident&gt;</title>
+<link rel="help" href="https://drafts.csswg.org/css-anchor-position-2/#anchored-container-queries">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/css-conditional/container-queries/support/cq-testcommon.js"></script>
+<style>
+  #anchor {
+    anchor-name: --a;
+    width: 100px;
+    height: 100px;
+  }
+  @position-try --foo {
+    position-area: bottom;
+  }
+  @position-try --bar {
+    position-area: top;
+  }
+  .anchored {
+    position: absolute;
+    position-anchor: --a;
+    position-area: top;
+    width: 100px;
+    /* Too tall to fit over the anchor to trigger fallback */
+    height: 100px;
+    container-type: anchored;
+  }
+  #a1 {
+    position-try-fallbacks: --foo;
+  }
+  #t1 {
+    @container anchored(fallback: --foo) { --pass: yes; }
+  }
+  #a2 {
+    position-try-fallbacks: --bar, --bar flip-block;
+  }
+  #t2 {
+    @container anchored(fallback: --bar flip-block) { --pass: yes; }
+    @container anchored(fallback: --bar) { --pass: no; }
+  }
+</style>
+<div id="anchor"></div>
+<div id="a1" class="anchored">
+  <div id="t1"></div>
+</div>
+<div id="a2" class="anchored">
+  <div id="t2"></div>
+</div>
+<script>
+  test(() => {
+    assert_equals(getComputedStyle(t1).getPropertyValue("--pass"), "yes");
+  }, "@container anchored(fallback) matching name");
+
+  test(() => {
+    assert_equals(getComputedStyle(t2).getPropertyValue("--pass"), "yes");
+  }, "@container anchored(fallback) matching name with tactics, but not name");
+</script>
diff --git a/tests/wpt/tests/css/css-anchor-position/container-queries/anchored-fallback-position-area-wm.html b/tests/wpt/tests/css/css-anchor-position/container-queries/anchored-fallback-position-area-wm.html
new file mode 100644
index 00000000000..ecd2e1af599
--- /dev/null
+++ b/tests/wpt/tests/css/css-anchor-position/container-queries/anchored-fallback-position-area-wm.html
@@ -0,0 +1,64 @@
+<!DOCTYPE html>
+<title>CSS Conditional Test: @container anchored(fallback) matching &lt;position-area&gt; - orthogonal writing modes</title>
+<link rel="help" href="https://drafts.csswg.org/css-anchor-position-2/#anchored-container-queries">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/css-conditional/container-queries/support/cq-testcommon.js"></script>
+<style>
+  #abs-container {
+    writing-mode: vertical-lr;
+    position: absolute;
+    width: 400px;
+    height: 400px;
+  }
+  #anchor {
+    direction: rtl;
+    anchor-name: --a;
+    width: 100px;
+    height: 100px;
+  }
+  .anchored {
+    container-type: anchored;
+    position: absolute;
+    writing-mode: horizontal-tb;
+    direction: rtl;
+    position-anchor: --a;
+    position-area: left;
+    /* Does not fit left of the anchor, triggers fallback */
+    width: 100px;
+    height: 100px;
+  }
+  #a1 { position-try-fallbacks: self-block-end self-inline-start; }
+  #a2 { position-try-fallbacks: block-end inline-end; }
+  #t1, #t2 {
+    /* Logical values are resolved against anchored / anchor container elements. */
+    @container anchored(fallback: bottom right) { --physical: yes; }
+    @container anchored(fallback: self-inline-start self-block-end) { --anchor: yes; }
+    @container anchored(fallback: inline-end block-end) { --abs-container: yes; }
+  }
+</style>
+<div id="abs-container">
+  <div id="anchor"></div>
+  <div id="a1" class="anchored">
+    <div id="t1"></div>
+  </div>
+  <div id="a2" class="anchored">
+    <div id="t2"></div>
+  </div>
+</div>
+<script>
+  test(() => {
+    const t1_style = getComputedStyle(t1);
+    assert_equals(t1_style.getPropertyValue("--physical"), "yes", "queried physical position-area");
+    assert_equals(t1_style.getPropertyValue("--anchor"), "yes", "queried logical self position-area");
+    assert_equals(t1_style.getPropertyValue("--abs-container"), "yes", "queried logical container position-area");
+  }, "@container anchored(fallback) with 'self-block-end self-inline-start' fallback applied");
+
+  test(() => {
+    const t2_style = getComputedStyle(t2);
+    assert_equals(t2_style.getPropertyValue("--physical"), "yes", "queried physical position-area");
+    assert_equals(t2_style.getPropertyValue("--anchor"), "yes", "queried logical self position-area");
+    assert_equals(t2_style.getPropertyValue("--abs-container"), "yes", "queried logical container position-area");
+  }, "@container anchored(fallback) with 'block-end inline-end' fallback applied");
+
+</script>
diff --git a/tests/wpt/tests/css/css-anchor-position/container-queries/anchored-fallback-position-area.html b/tests/wpt/tests/css/css-anchor-position/container-queries/anchored-fallback-position-area.html
new file mode 100644
index 00000000000..b6ab25137e0
--- /dev/null
+++ b/tests/wpt/tests/css/css-anchor-position/container-queries/anchored-fallback-position-area.html
@@ -0,0 +1,49 @@
+<!DOCTYPE html>
+<title>CSS Conditional Test: @container anchored(fallback) matching &lt;position-area&gt;</title>
+<link rel="help" href="https://drafts.csswg.org/css-anchor-position-2/#anchored-container-queries">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/css-conditional/container-queries/support/cq-testcommon.js"></script>
+<style>
+  #anchor {
+    anchor-name: --a;
+    width: 100px;
+    height: 100px;
+  }
+  #anchored {
+    position: absolute;
+    position-anchor: --a;
+    position-area: top;
+    position-try-fallbacks: bottom;
+    width: 100px;
+    /* Too tall to fit over the anchor to trigger fallback */
+    height: 100px;
+    container-type: anchored;
+  }
+  #target {
+    /* Logical values are resolved against anchored / anchor container elements.
+       Changing the writing-mode for the target should have no effect. */
+    writing-mode: vertical-lr;
+    @container anchored(fallback: bottom) { --bottom: yes; }
+    @container anchored(fallback: span-all bottom) { --span-all-bottom: yes; }
+    @container anchored(fallback: block-end) { --block-end: yes; }
+    @container anchored(fallback: block-end span-all) { --block-end-span-all: yes; }
+    @container anchored(fallback: self-block-end) { --self-block-end: yes; }
+    @container anchored(fallback: span-all self-block-end) { --span-all-self-block-end: yes; }
+  }
+</style>
+<div id="anchor"></div>
+<div id="anchored">
+  <div id="target"></div>
+</div>
+<script>
+  test(() => {
+    const style = getComputedStyle(target);
+    assert_equals(style.getPropertyValue("--bottom"), "yes");
+    assert_equals(style.getPropertyValue("--span-all-bottom"), "yes");
+    assert_equals(style.getPropertyValue("--block-end"), "yes");
+    assert_equals(style.getPropertyValue("--block-end-span-all"), "yes");
+    assert_equals(style.getPropertyValue("--self-block-end"), "yes");
+    assert_equals(style.getPropertyValue("--span-all-self-block-end"), "yes");
+  }, "@container anchored(fallback) with <position-area> fallback applied");
+</script>
diff --git a/tests/wpt/tests/css/css-anchor-position/container-queries/anchored-fallback-scroll.html b/tests/wpt/tests/css/css-anchor-position/container-queries/anchored-fallback-scroll.html
new file mode 100644
index 00000000000..480a1bd1e00
--- /dev/null
+++ b/tests/wpt/tests/css/css-anchor-position/container-queries/anchored-fallback-scroll.html
@@ -0,0 +1,51 @@
+<!DOCTYPE html>
+<title>CSS Conditional Test: @container anchored(fallback) changes on scroll</title>
+<link rel="help" href="https://drafts.csswg.org/css-anchor-position-2/#anchored-container-queries">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/css-conditional/container-queries/support/cq-testcommon.js"></script>
+<script src="/css/css-transitions/support/helper.js"></script>
+<style>
+  body { margin: 0; }
+  #anchor {
+    anchor-name: --a;
+    margin-top: 100px;
+    width: 100px;
+    height: 100px;
+  }
+  #anchored {
+    position: absolute;
+    position-anchor: --a;
+    position-area: top;
+    position-try-fallbacks: flip-block;
+    width: 100px;
+    height: 100px;
+    container-type: anchored;
+  }
+  @container anchored(fallback: none) {
+    #t1 { --fallback: no; }
+  }
+  @container anchored(fallback: flip-block) {
+    #t1 { --fallback: yes; }
+  }
+</style>
+<div id="anchor"></div>
+<div id="anchored">
+  <div id="t1"></div>
+</div>
+<div style="height:3000px">XXX</div>
+<script>
+  promise_test(async t => {
+    await waitForAnimationFrames(2);
+    assert_equals(anchored.offsetTop, 0);
+    assert_equals(document.documentElement.scrollTop, 0);
+    assert_equals(getComputedStyle(t1).getPropertyValue("--fallback"), "no");
+  }, "@container anchored() without applied fallback at initial scroll position");
+
+  promise_test(async t => {
+    document.documentElement.scrollTop = 100;
+    await waitForAnimationFrames(2);
+    assert_equals(anchored.offsetTop, 200);
+    assert_equals(getComputedStyle(t1).getPropertyValue("--fallback"), "yes");
+  }, "@container anchored() applies fallback after scrolling down");
+</script>
diff --git a/tests/wpt/tests/css/css-anchor-position/container-queries/anchored-fallback-style-containment-ref.html b/tests/wpt/tests/css/css-anchor-position/container-queries/anchored-fallback-style-containment-ref.html
new file mode 100644
index 00000000000..148c1cb21fb
--- /dev/null
+++ b/tests/wpt/tests/css/css-anchor-position/container-queries/anchored-fallback-style-containment-ref.html
@@ -0,0 +1,4 @@
+<!DOCTYPE html>
+<title>CSS Test Reference</title>
+<p>You should see the number 3 below:</p>
+<div>3</div>
diff --git a/tests/wpt/tests/css/css-anchor-position/container-queries/anchored-fallback-style-containment.html b/tests/wpt/tests/css/css-anchor-position/container-queries/anchored-fallback-style-containment.html
new file mode 100644
index 00000000000..14a16cc53b7
--- /dev/null
+++ b/tests/wpt/tests/css/css-anchor-position/container-queries/anchored-fallback-style-containment.html
@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<title>CSS Anchor Positioning Test: container-type:anchored contains style</title>
+<link rel="help" href="https://drafts.csswg.org/css-anchor-position-2/#anchored-container-queries">
+<link rel="match" href="anchored-fallback-style-containment-ref.html">
+<style>
+  #generate::before { content: counter(c); }
+</style>
+<p>You should see the number 3 below:</p>
+<div style="counter-reset: c 1"></div>
+<div style="container-type: anchored; counter-increment: c">
+  <div style="counter-increment: c"></div>
+</div>
+<div id="generate" style="counter-increment: c"></div>
diff --git a/tests/wpt/tests/css/css-anchor-position/container-queries/anchored-fallback-try-tactic.html b/tests/wpt/tests/css/css-anchor-position/container-queries/anchored-fallback-try-tactic.html
new file mode 100644
index 00000000000..49ed004370e
--- /dev/null
+++ b/tests/wpt/tests/css/css-anchor-position/container-queries/anchored-fallback-try-tactic.html
@@ -0,0 +1,62 @@
+<!DOCTYPE html>
+<title>CSS Conditional Test: @container anchored(fallback) matching &lt;try-tactic&gt;</title>
+<link rel="help" href="https://drafts.csswg.org/css-anchor-position-2/#anchored-container-queries">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/css-conditional/container-queries/support/cq-testcommon.js"></script>
+<style>
+  #anchor {
+    anchor-name: --a;
+    width: 100px;
+    height: 100px;
+  }
+  .anchored {
+    position: absolute;
+    position-anchor: --a;
+    position-area: top;
+    width: 100px;
+    /* Too tall to fit over the anchor to trigger fallback */
+    height: 100px;
+    container-type: anchored;
+  }
+  #a1 {
+    position-try-fallbacks: flip-block;
+  }
+  #a2 {
+    position-try-fallbacks: flip-inline flip-block;
+  }
+  #t1, #t2 {
+    --flip-block: no;
+    --flip-inline: no;
+    --flip-inline-block: no;
+    --flip-block-inline: no;
+    @container anchored(fallback: flip-block) { --flip-block: yes; }
+    @container anchored(fallback: flip-inline) { --flip-inline: yes; }
+    @container anchored(fallback: flip-inline flip-block) { --flip-inline-block: yes; }
+    @container anchored(fallback: flip-block flip-inline) { --flip-block-inline: yes; }
+  }
+</style>
+<div id="anchor"></div>
+<div id="a1" class="anchored">
+  <div id="t1"></div>
+</div>
+<div id="a2" class="anchored">
+  <div id="t2"></div>
+</div>
+<script>
+  test(() => {
+    const style = getComputedStyle(t1);
+    assert_equals(style.getPropertyValue("--flip-block"), "yes");
+    assert_equals(style.getPropertyValue("--flip-inline"), "no");
+    assert_equals(style.getPropertyValue("--flip-inline-block"), "no");
+    assert_equals(style.getPropertyValue("--flip-block-inline"), "no");
+  }, "@container anchored(fallback) matching flip-block");
+
+  test(() => {
+    const style = getComputedStyle(t2);
+    assert_equals(style.getPropertyValue("--flip-block"), "no");
+    assert_equals(style.getPropertyValue("--flip-inline"), "no");
+    assert_equals(style.getPropertyValue("--flip-inline-block"), "yes");
+    assert_equals(style.getPropertyValue("--flip-block-inline"), "no");
+  }, "@container anchored(fallback) matching flip-inline flip-block");
+</script>
diff --git a/tests/wpt/tests/css/css-anchor-position/container-queries/at-container-anchored-parsing.html b/tests/wpt/tests/css/css-anchor-position/container-queries/at-container-anchored-parsing.html
new file mode 100644
index 00000000000..62349827c2f
--- /dev/null
+++ b/tests/wpt/tests/css/css-anchor-position/container-queries/at-container-anchored-parsing.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<title>CSS Conditional Test: @container anchored query parsing</title>
+<link rel="help" href="https://drafts.csswg.org/css-anchor-position-2/#anchored-container-queries">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/css-conditional/container-queries/support/cq-testcommon.js"></script>
+<div style="container-name:name;container-type:anchored">
+  <main id="cq-main"></main>
+</div>
+<script>
+  test_cq_condition_known('anchored(fallback)');
+  test_cq_condition_known('anchored(fallback: none)');
+  test_cq_condition_known('(anchored(fallback: inline-start block-end))');
+  test_cq_condition_known('anchored(not ((fallback: --foo) or (fallback: --bar flip-inline)))');
+
+  test_cq_condition_unknown('anchored(fallback < none)');
+  test_cq_condition_unknown('anchored((fallback = none))');
+  test_cq_condition_unknown('anchored(fallback: 0)');
+  test_cq_condition_unknown('anchored(fallback: 1)');
+  test_cq_condition_unknown('anchored(style(fallback: top left))');
+  test_cq_condition_unknown('style(anchored(fallback: --foo))');
+  test_cq_condition_unknown('anchored(fallback:)');
+</script>
diff --git a/tests/wpt/tests/css/css-anchor-position/container-queries/at-container-anchored-serialization.html b/tests/wpt/tests/css/css-anchor-position/container-queries/at-container-anchored-serialization.html
new file mode 100644
index 00000000000..cfb8823cc34
--- /dev/null
+++ b/tests/wpt/tests/css/css-anchor-position/container-queries/at-container-anchored-serialization.html
@@ -0,0 +1,31 @@
+<!DOCTYPE html>
+<title>CSS Container Queries: anchored() conditionText serialization</title>
+<link rel="help" href="https://drafts.csswg.org/css-anchor-position-2/#anchored-container-queries">
+<link rel="help" href="https://drafts.csswg.org/cssom/#serialize-a-css-rule">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/css-conditional/container-queries/support/cq-testcommon.js"></script>
+<style id="testSheet">
+  @container anchored(        fallback:--foo) { }
+  @container ANChoreD(fallback:    ) { }
+  @container anchoRed(fallback) { }
+  @container  anchored(  ( fallback: flip-INLINE) OR ( FALLBACK : --bar  ) ) { }
+  @container anchored (fallback: top right) { }
+</style>
+<script>
+  setup(() => {
+    assert_equals(testSheet.sheet.cssRules.length, 5);
+  });
+
+  const tests = [
+      ["anchored(fallback: --foo)", "Normalize spaces"],
+      ["ANChoreD(fallback:    )", "No value - invalid, serializes as <general-enclosed>"],
+      ["anchored(fallback)", "Boolean context"],
+      ["anchored((fallback: flip-inline) or (fallback: --bar))", "Logical with 'or'"],
+      ["anchored (fallback: top right)", "Not an anchored() function with space before '('"]
+  ].map((e, i) => [testSheet.sheet.cssRules[i], ...e]);
+
+  tests.forEach((t) => {
+    test(() => assert_equals(t[0].conditionText, t[1]), t[2]);
+  });
+</script>
diff --git a/tests/wpt/tests/css/css-anchor-position/container-queries/container-type-anchored-computed.html b/tests/wpt/tests/css/css-anchor-position/container-queries/container-type-anchored-computed.html
new file mode 100644
index 00000000000..e36ce91878c
--- /dev/null
+++ b/tests/wpt/tests/css/css-anchor-position/container-queries/container-type-anchored-computed.html
@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<title>CSS Conditional Test: Computed values of container-type with 'anchored'</title>
+<link rel="help" href="https://drafts.csswg.org/css-anchor-position-2/#anchored-container-queries">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/computed-testcommon.js"></script>
+<script src="/css/css-conditional/container-queries/support/cq-testcommon.js"></script>
+<div id="target"></div>
+<script>
+  test_computed_value('container-type', 'anchored');
+  test_computed_value('container-type', 'anchored size', 'size anchored');
+  test_computed_value('container-type', 'inline-size anchored');
+</script>
diff --git a/tests/wpt/tests/css/css-anchor-position/container-queries/container-type-anchored-parsing.html b/tests/wpt/tests/css/css-anchor-position/container-queries/container-type-anchored-parsing.html
new file mode 100644
index 00000000000..f79a9ed5ee3
--- /dev/null
+++ b/tests/wpt/tests/css/css-anchor-position/container-queries/container-type-anchored-parsing.html
@@ -0,0 +1,16 @@
+<!DOCTYPE html>
+<title>CSS Conditional Test: Parsing of container-type with 'anchored'</title>
+<link rel="help" href="https://drafts.csswg.org/css-anchor-position-2/#anchored-container-queries">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/parsing-testcommon.js"></script>
+<script src="/css/css-conditional/container-queries/support/cq-testcommon.js"></script>
+<div id="target"></div>
+<script>
+  test_valid_value('container-type', 'anchored');
+  test_valid_value('container-type', 'size anchored');
+  test_valid_value('container-type', 'anchored inline-size', 'inline-size anchored');
+
+  test_invalid_value('container-type', 'anchored anchored');
+  test_invalid_value('container-type', 'normal anchored');
+</script>
diff --git a/tests/wpt/tests/css/css-anchor-position/last-successful-change-fallbacks-position-area.html b/tests/wpt/tests/css/css-anchor-position/last-successful-change-fallbacks-position-area.html
new file mode 100644
index 00000000000..456839dd448
--- /dev/null
+++ b/tests/wpt/tests/css/css-anchor-position/last-successful-change-fallbacks-position-area.html
@@ -0,0 +1,59 @@
+<!DOCTYPE html>
+<title>CSS Anchor Positioning: changing position-try-fallbacks to the same position-area value does not invalidate last successful position fallback</title>
+<link rel="author" title="Kiet Ho" href="mailto:kiet.ho@apple.com">
+<link rel="help" href="https://drafts.csswg.org/css-anchor-position/#last-successful-position-fallback">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="support/test-common.js"></script>
+<style>
+  #container {
+    position: relative;
+    width: 600px;
+    height: 300px;
+    background: teal;
+  }
+  #anchor {
+    position: relative;
+    top: 100px;
+    left: 100px;
+    width: 100px;
+    height: 100px;
+    background: red;
+    anchor-name: --a;
+  }
+  #anchored {
+    position-anchor: --a;
+    position-try-fallbacks: right center;
+    position: absolute;
+    width: 200px;
+    height: 100px;
+    position-area: left center;
+    background: lime;
+  }
+</style>
+<div id="container">
+  <div id="anchor"></div>
+  <div id="anchored"></div>
+</div>
+<script>
+  promise_test(async () => {
+    await waitUntilNextAnimationFrame();
+    await waitUntilNextAnimationFrame();
+    assert_equals(anchored.offsetLeft, 200);
+  }, "Starts rendering with fallback");
+
+  promise_test(async () => {
+    anchor.style.left = "300px";
+    anchored.style.positionTryFallbacks = "right center";
+    await waitUntilNextAnimationFrame();
+    await waitUntilNextAnimationFrame();
+    assert_equals(anchored.offsetLeft, 400);
+  }, "Both base and fallback works, position-try-fallbacks is set to the same value, keeps fallback");
+
+  promise_test(async () => {
+    anchored.style.positionTryFallbacks = "right top";
+    await waitUntilNextAnimationFrame();
+    await waitUntilNextAnimationFrame();
+    assert_equals(anchored.offsetLeft, 100);
+  }, "position-try-fallbacks is set to a different value, both base and fallback works, uses base because last successful position option is invalidated");
+</script>
\ No newline at end of file
diff --git a/tests/wpt/tests/css/css-animations/animate-font-size-with-margin-override-ref.html b/tests/wpt/tests/css/css-animations/animate-font-size-with-margin-override-ref.html
new file mode 100644
index 00000000000..934b8230855
--- /dev/null
+++ b/tests/wpt/tests/css/css-animations/animate-font-size-with-margin-override-ref.html
@@ -0,0 +1,12 @@
+<style>
+h2 {
+    margin: 0;
+    background-color: lightblue;
+    font-size: 30px;
+}
+div { border: 2px solid green; }
+</style>
+
+<div>
+<h2>This should not have any margins.</h2>
+</div>
diff --git a/tests/wpt/tests/css/css-animations/animate-font-size-with-margin-override.html b/tests/wpt/tests/css/css-animations/animate-font-size-with-margin-override.html
new file mode 100644
index 00000000000..730f10c530d
--- /dev/null
+++ b/tests/wpt/tests/css/css-animations/animate-font-size-with-margin-override.html
@@ -0,0 +1,18 @@
+<link rel="help" href="https://drafts.csswg.org/css-animations">
+<link rel="help" href="https://bugs.webkit.org/show_bug.cgi?id=284527">
+<link rel="match" href="animate-font-size-with-margin-override-ref.html">
+<style>
+@keyframes anim {
+    from, to { font-size: 30px; }
+}
+h2 {
+    margin: 0;
+    background-color: lightblue;
+    animation: anim both;
+}
+div { border: 2px solid green; }
+</style>
+
+<div>
+<h2>This should not have any margins.</h2>
+</div>
diff --git a/tests/wpt/tests/css/css-cascade/revert-rule-basic.tentative.html b/tests/wpt/tests/css/css-cascade/revert-rule-basic.tentative.html
new file mode 100644
index 00000000000..27d61ead9b2
--- /dev/null
+++ b/tests/wpt/tests/css/css-cascade/revert-rule-basic.tentative.html
@@ -0,0 +1,76 @@
+<!DOCTYPE html>
+<title>The revert-rule keyword: basic behavior</title>
+<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/10443">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+
+<style>
+  #test1 {
+    color: green;
+  }
+  #test1 {
+    color: red;
+    color: revert-rule;
+  }
+</style>
+<div id=test1></div>
+<script>
+  test(() => {
+    assert_true(CSS.supports('color:revert-rule'));
+    assert_equals(getComputedStyle(test1).color, 'rgb(0, 128, 0)')
+  }, 'The revert-rule keyword rolls back to the previous rule');
+</script>
+
+
+<style>
+  #test2 { /* Specificity: (0, 0, 1) */
+    color: red;
+  }
+  #test2#test2#test2 { /* Specificity: (0, 0, 3) */
+    color: red;
+    color: revert-rule;
+  }
+  #test2#test2 { /* Specificity: (0, 0, 2) */
+    color: green;
+  }
+</style>
+<div id=test2></div>
+<script>
+  test(() => {
+    assert_true(CSS.supports('color:revert-rule'));
+    assert_equals(getComputedStyle(test2).color, 'rgb(0, 128, 0)')
+  }, 'Cascade order determines the previous rule, not order of appearance');
+</script>
+
+
+<style>
+  #test3 {
+    color: red;
+  }
+  #test3 {
+    color: green;
+  }
+</style>
+<div id=test3 style="color:red; color:revert-rule"></div>
+<script>
+  test(() => {
+    assert_true(CSS.supports('color:revert-rule'));
+    assert_equals(getComputedStyle(test3).color, 'rgb(0, 128, 0)')
+  }, 'Reverting from style attribute reverts to regular rules');
+</script>
+
+
+<style>
+  #test4 {              z-index: 1; }
+  #test4 {              z-index: 2; }
+  #test4 { z-index: -1; z-index: revert-rule; }
+  #test4 { z-index: -1; z-index: revert-rule; }
+  #test4 { z-index: -1; z-index: revert-rule; }
+</style>
+<div id=test4></div>
+<script>
+  test(() => {
+    assert_true(CSS.supports('z-index:revert-rule'));
+    assert_equals(getComputedStyle(test4).zIndex, '2')
+  }, 'A chain of revert-rule works');
+</script>
diff --git a/tests/wpt/tests/css/css-cascade/revert-rule-layer.tentative.html b/tests/wpt/tests/css/css-cascade/revert-rule-layer.tentative.html
new file mode 100644
index 00000000000..17b2826718f
--- /dev/null
+++ b/tests/wpt/tests/css/css-cascade/revert-rule-layer.tentative.html
@@ -0,0 +1,51 @@
+<!DOCTYPE html>
+<title>The revert-rule keyword: interaction with @layer</title>
+<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/10443">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+
+<style>
+  @layer {
+    #test1 {
+      color: green;
+    }
+  }
+  @layer {
+    #test1 {
+      color: red;
+      color: revert-rule;
+    }
+  }
+</style>
+<div id=test1></div>
+<script>
+  test(() => {
+    assert_true(CSS.supports('color:revert-rule'));
+    assert_equals(getComputedStyle(test1).color, 'rgb(0, 128, 0)')
+  }, 'The revert-rule keyword can cross layers');
+</script>
+
+
+<style>
+  @layer {
+    #test2 {
+      color: red;
+    }
+  }
+  @layer {
+    #test2 {
+      color: green;
+    }
+    #test2 {
+      color: red;
+      color: revert-rule;
+    }
+  }
+</style>
+<div id=test2></div>
+<script>
+  test(() => {
+    assert_true(CSS.supports('color:revert-rule'));
+    assert_equals(getComputedStyle(test2).color, 'rgb(0, 128, 0)')
+  }, 'The revert-rule does not unconditionally cross layers');
+</script>
\ No newline at end of file
diff --git a/tests/wpt/tests/css/css-color/display-p3-linear-001.html b/tests/wpt/tests/css/css-color/display-p3-linear-001.html
new file mode 100644
index 00000000000..4ae7149ed6e
--- /dev/null
+++ b/tests/wpt/tests/css/css-color/display-p3-linear-001.html
@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Color 4: display-p3-linear</title>
+<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org">
+<link rel="help" href="https://drafts.csswg.org/css-color-4/#valdef-color-display-p3-linear">
+<link rel="match" href="greensquare-ref.html">
+<meta name="assert" content="display-p3-linear with no alpha">
+<style>
+    .test { background-color: red; width: 12em; height: 12em; }
+    .test { background-color: color(display-p3-linear 0.0383 0.2087 0.0156); } /* green (sRGB #008000) converted to display-p3-linear */
+</style>
+<body>
+    <p>Test passes if you see a green square, and no red.</p>
+    <div class="test"></div>
+</body>
diff --git a/tests/wpt/tests/css/css-color/display-p3-linear-002.html b/tests/wpt/tests/css/css-color/display-p3-linear-002.html
new file mode 100644
index 00000000000..982550f8743
--- /dev/null
+++ b/tests/wpt/tests/css/css-color/display-p3-linear-002.html
@@ -0,0 +1,16 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Color 4: display-p3-linear</title>
+<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org">
+<link rel="help" href="https://drafts.csswg.org/css-color-4/#valdef-color-display-p3-linear">
+<link rel="help" href="https://drafts.csswg.org/css-color-4/#predefined-to-predefined">
+<link rel="match" href="blacksquare-ref.html">
+<meta name="assert" content="display-p3-linear with no alpha">
+<style>
+    .test { background-color: red; width: 12em; height: 12em; }
+    .test { background-color: color(display-p3-linear 0 0 0); } /* black (sRGB #000000) converted to display-p3-linear */
+</style>
+<body>
+    <p>Test passes if you see a black square, and no red.</p>
+    <div class="test"></div>
+</body>
diff --git a/tests/wpt/tests/css/css-color/display-p3-linear-003.html b/tests/wpt/tests/css/css-color/display-p3-linear-003.html
new file mode 100644
index 00000000000..222e51e291c
--- /dev/null
+++ b/tests/wpt/tests/css/css-color/display-p3-linear-003.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Color 4: display-p3-linear</title>
+<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org">
+<link rel="help" href="https://drafts.csswg.org/css-color-4/#valdef-color-display-p3-linear">
+<link rel="help" href="https://drafts.csswg.org/css-color-4/#predefined-to-predefined">
+<link rel="match" href="./whitesquare-ref.html">
+<meta name="assert" content="display-p3-linear with no alpha">
+<style>
+    body { background-color: grey; }
+    .test { background-color: red; width: 12em; height: 6em; margin-top: 0; }
+    .ref { background-color: rgb(100% 100% 100%); width: 12em; height: 6em; margin-bottom: 0; } /* color(display-p3-linear 1 1 1) converted to sRGB */
+    .test { background-color: color(display-p3-linear 1 1 1); }
+</style>
+<body>
+    <p>Test passes if you see a white square, and no red.</p>
+    <div class="ref"></div>
+    <div class="test"></div>
+</body>
diff --git a/tests/wpt/tests/css/css-color/display-p3-linear-004-ref.html b/tests/wpt/tests/css/css-color/display-p3-linear-004-ref.html
new file mode 100644
index 00000000000..8cf6103ea01
--- /dev/null
+++ b/tests/wpt/tests/css/css-color/display-p3-linear-004-ref.html
@@ -0,0 +1,10 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Color 4:display-p3-linear</title>
+<style>
+    .test { background-color: lab(86.61399% -106.539 102.871); width: 12em; height: 12em; } /* color(display-p3-linear 0 1 0) converted to Lab */
+</style>
+<body>
+    <p>Test passes if you see a single square, and not two rectangles of different colors.</p>
+    <div class="test"></div>
+</body>
diff --git a/tests/wpt/tests/css/css-color/display-p3-linear-004.html b/tests/wpt/tests/css/css-color/display-p3-linear-004.html
new file mode 100644
index 00000000000..395e24be3b0
--- /dev/null
+++ b/tests/wpt/tests/css/css-color/display-p3-linear-004.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Color 4: display-p3-linear</title>
+<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org">
+<link rel="help" href="https://drafts.csswg.org/css-color-4/#valdef-color-display-p3-linear">
+<link rel="help" href="https://drafts.csswg.org/css-color-4/#specifying-lab-lch">
+<link rel="help" href="https://drafts.csswg.org/css-color-4/#predefined-to-lab-oklab">
+<link rel="match" href="display-p3-linear-004-ref.html">
+<meta name="assert" content="display-p3-linear with no alpha">
+<style>
+    .test { background-color: red; width: 12em; height: 6em; margin-top: 0; }
+    .ref { background-color: lab(86.61399% -106.539 102.871); width: 12em; height: 6em; margin-bottom: 0; } /* color(display-p3-linear 0 1 0) converted to Lab */
+    .test { background-color: color(display-p3-linear 0 1 0); }
+</style>
+<body>
+    <p>Test passes if you see a single square, and not two rectangles of different colors.</p>
+    <div class="ref"></div>
+    <div class="test"></div>
+</body>
diff --git a/tests/wpt/tests/css/css-color/display-p3-linear-005.html b/tests/wpt/tests/css/css-color/display-p3-linear-005.html
new file mode 100644
index 00000000000..1456c7c8395
--- /dev/null
+++ b/tests/wpt/tests/css/css-color/display-p3-linear-005.html
@@ -0,0 +1,20 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Color 4: display-p3-linear</title>
+<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org">
+<link rel="help" href="https://drafts.csswg.org/css-color-4/#valdef-color-display-p3-linear">
+<link rel="help" href="https://drafts.csswg.org/css-color-4/#predefined-to-predefined">
+<link rel="match" href="./yellowsquare-ref.html">
+<meta name="assert" content="display-p3-linear with no alpha">
+<style>
+    body { background-color: grey; }
+    .test { background-color: red; width: 12em; height: 6em; margin-top: 0; }
+    .ref { background-color: yellow; width: 12em; height: 6em; margin-bottom: 0; }
+    /* sRGB yellow converted to display-p3-linear */
+    .test { background-color: color(display-p3-linear 1 1 0.0895); }
+</style>
+<body>
+    <p>Test passes if you see a yellow square, and no red.</p>
+    <div class="ref"></div>
+    <div class="test"></div>
+</body>
diff --git a/tests/wpt/tests/css/css-color/display-p3-linear-006.html b/tests/wpt/tests/css/css-color/display-p3-linear-006.html
new file mode 100644
index 00000000000..8a3ea45d187
--- /dev/null
+++ b/tests/wpt/tests/css/css-color/display-p3-linear-006.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Color 4: display-p3-linear and sRGB with medium chroma</title>
+<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org">
+<link rel="help" href="https://drafts.csswg.org/css-color-4/#valdef-color-display-p3-linear">
+<link rel="help" href="https://drafts.csswg.org/css-color-4/#predefined-sRGB">
+<link rel="help" href="https://drafts.csswg.org/css-color-4/#oklab-lab-to-predefined">
+<link rel="match" href="mossgreensquare-ref.html">
+<meta name="assert" content="display-p3-linear with no alpha">
+<style>
+    .test, .test2 { background-color: red; width: 12em; height: 4em; }
+    .ref {background-color: rgb(44.8436% 53.537% 28.8112%); width: 12em; height: 4em; }
+        /* lch(54% 35 118) converted to legacy sRGB */
+    .test { background-color: color(display-p3-linear 0.183382 0.245634 0.082317); }
+        /* lch(54% 35 118) converted to display-p3-linear */
+    .test2 {background-color: color(srgb 0.448436 0.53537 0.288113); }
+        /* lch(54% 35 118) converted to color(sRGB) */
+</style>
+<body>
+    <p>Test passes if you see a moss green square, and no red.</p>
+    <div class="test"></div>
+    <div class="ref"></div>
+    <div class="test2"></div>
+</body>
diff --git a/tests/wpt/tests/css/css-color/parsing/color-computed-color-function.html b/tests/wpt/tests/css/css-color/parsing/color-computed-color-function.html
index c5488171cfc..bb4d1c66967 100644
--- a/tests/wpt/tests/css/css-color/parsing/color-computed-color-function.html
+++ b/tests/wpt/tests/css/css-color/parsing/color-computed-color-function.html
@@ -18,7 +18,7 @@
   }
 </style>
 <script>
-for (const colorSpace of [ "srgb", "srgb-linear", "a98-rgb", "rec2020", "prophoto-rgb", "display-p3" ]) {
+for (const colorSpace of [ "srgb", "srgb-linear", "a98-rgb", "rec2020", "prophoto-rgb", "display-p3", "display-p3-linear" ]) {
     test_computed_value("color", `color(${colorSpace} 0% 0% 0%)`, `color(${colorSpace} 0 0 0)`);
     test_computed_value("color", `color(${colorSpace} 10% 10% 10%)`, `color(${colorSpace} 0.1 0.1 0.1)`);
     test_computed_value("color", `color(${colorSpace} .2 .2 25%)`, `color(${colorSpace} 0.2 0.2 0.25)`);
@@ -149,6 +149,26 @@ test_computed_value("color", "color(display-p3 1.00 none 0.2 / none)", "color(di
 test_computed_value("color", "color(display-p3 100% none 20% / 30%)", "color(display-p3 1 none 0.2 / 0.3)", "[Display P3 with alpha, percent and none]");
 test_computed_value("color", "color(display-p3 100% none 0.2 / 23.7%)", "color(display-p3 1 none 0.2 / 0.237)", "[Display P3 with alpha, number, percent and none]");
 
+// Opaque Display P3 Linear in color()
+test_computed_value("color", "color(display-p3-linear 1.00 0.50 0.200)", "color(display-p3-linear 1 0.5 0.2)", "[Display P3 Linear all numbers]");
+test_computed_value("color", "color(display-p3-linear 100% 50% 20%)", "color(display-p3-linear 1 0.5 0.2)", "[Display P3 Linear all percent]");
+test_computed_value("color", "color(display-p3-linear 100% 0.5 20%)", "color(display-p3-linear 1 0.5 0.2)", "[Display P3 Linear mixed number and percent]");
+test_computed_value("color", "color(display-p3-linear 1.00 50% 0.2)", "color(display-p3-linear 1 0.5 0.2)", "[Display P3 Linear mixed number and percent 2]");
+test_computed_value("color", "color(display-p3-linear none none none)", "color(display-p3-linear none none none)", "[Display P3 Linear all none]");
+test_computed_value("color", "color(display-p3-linear 1.00 none 0.2)", "color(display-p3-linear 1 none 0.2)", "[Display P3 Linear number and none]");
+test_computed_value("color", "color(display-p3-linear 100% none 20%)", "color(display-p3-linear 1 none 0.2)", "[Display P3 Linear percent and none]");
+test_computed_value("color", "color(display-p3-linear 100% none 0.2)", "color(display-p3-linear 1 none 0.2)", "[Display P3 Linear number, percent and none]");
+
+// non-unity alpha, Display P3 Linear in  color()
+test_computed_value("color", "color(display-p3-linear 1.00 0.50 0.200 / 0.6)", "color(display-p3-linear 1 0.5 0.2 / 0.6)", "[Display P3 Linear with alpha, all numbers]");
+test_computed_value("color", "color(display-p3-linear 100% 50% 20% / 60%)", "color(display-p3-linear 1 0.5 0.2 / 0.6)", "[Display P3 Linear with alpha, all percent]");
+test_computed_value("color", "color(display-p3-linear 100% 0.5 20% / 0.6)", "color(display-p3-linear 1 0.5 0.2 / 0.6)", "[Display P3 Linear with alpha, mixed number and percent]");
+test_computed_value("color", "color(display-p3-linear 1.00 50% 0.2 / 60%)", "color(display-p3-linear 1 0.5 0.2 / 0.6)", "[Display P3 Linear with alpha, mixed number and percent 2]");
+test_computed_value("color", "color(display-p3-linear none none none / none)", "color(display-p3-linear none none none / none)", "[Display P3 Linear with alpha, all none]");
+test_computed_value("color", "color(display-p3-linear 1.00 none 0.2 / none)", "color(display-p3-linear 1 none 0.2 / none)", "[Display P3 Linear with alpha, number and none]");
+test_computed_value("color", "color(display-p3-linear 100% none 20% / 30%)", "color(display-p3-linear 1 none 0.2 / 0.3)", "[Display P3 Linear with alpha, percent and none]");
+test_computed_value("color", "color(display-p3-linear 100% none 0.2 / 23.7%)", "color(display-p3-linear 1 none 0.2 / 0.237)", "[Display P3 Linear with alpha, number, percent and none]");
+
 // Opaque A98 RGB in color()
 test_computed_value("color", "color(a98-rgb 1.00 0.50 0.200)", "color(a98-rgb 1 0.5 0.2)", "[A98 RGB all numbers]");
 test_computed_value("color", "color(a98-rgb 100% 50% 20%)", "color(a98-rgb 1 0.5 0.2)", "[A98 RGB all percent]");
diff --git a/tests/wpt/tests/css/css-color/parsing/color-computed-color-mix-function.html b/tests/wpt/tests/css/css-color/parsing/color-computed-color-mix-function.html
index ede3e3db86f..28e574aa85e 100644
--- a/tests/wpt/tests/css/css-color/parsing/color-computed-color-mix-function.html
+++ b/tests/wpt/tests/css/css-color/parsing/color-computed-color-mix-function.html
@@ -489,7 +489,7 @@
     fuzzy_test_computed_color(`color-mix(in oklab, oklab(0.1 0.2 0.3 / 25%) 0%, oklab(none none none / 0.5))`, `oklab(0.1 0.2 0.3 / 0.5)`);
     fuzzy_test_computed_color(`color-mix(in oklab, oklab(0.1 0.2 0.3 / 25%) 0%, oklab(0.5 none none / 0.5))`, `oklab(0.5 0.2 0.3 / 0.5)`);
 
-    for (const colorSpace of [ "srgb", "srgb-linear", "display-p3", "a98-rgb", "prophoto-rgb", "rec2020", "xyz", "xyz-d50", "xyz-d65" ]) {
+    for (const colorSpace of [ "srgb", "srgb-linear", "display-p3", "display-p3-linear", "a98-rgb", "prophoto-rgb", "rec2020", "xyz", "xyz-d50", "xyz-d65" ]) {
         const resultColorSpace = colorSpace == "xyz" ? "xyz-d65" : colorSpace;
 
         fuzzy_test_computed_color(`color-mix(in ${colorSpace}, color(${colorSpace} .1 .2 .3), color(${colorSpace} .5 .6 .7))`, `color(${resultColorSpace} 0.3 0.4 0.5)`);
diff --git a/tests/wpt/tests/css/css-color/parsing/color-computed-relative-color.html b/tests/wpt/tests/css/css-color/parsing/color-computed-relative-color.html
index 83259ebe2df..b8842508801 100644
--- a/tests/wpt/tests/css/css-color/parsing/color-computed-relative-color.html
+++ b/tests/wpt/tests/css/css-color/parsing/color-computed-relative-color.html
@@ -641,7 +641,7 @@
   fuzzy_test_computed_color(`color-mix(in oklch, oklch(from oklch(0.7 0.45 30) l c none), oklch(0.7 0.45 30))`, `oklch(0.7 0.45 30)`);
   fuzzy_test_computed_color(`oklch(from color-mix(in oklch, oklch(0.7 0.45 30), oklch(0.7 0.45 30)) l c h / alpha)`, `oklch(0.7 0.45 30)`);
 
-  for (const colorSpace of [ "srgb", "srgb-linear", "a98-rgb", "rec2020", "prophoto-rgb", "display-p3" ]) {
+  for (const colorSpace of [ "srgb", "srgb-linear", "a98-rgb", "rec2020", "prophoto-rgb", "display-p3", "display-p3-linear" ]) {
       // Testing no modifications.
       fuzzy_test_computed_color(`color(from color(${colorSpace} 0.7 0.5 0.3) ${colorSpace} r g b)`,                              `color(${colorSpace} 0.7 0.5 0.3)`);
       fuzzy_test_computed_color(`color(from color(${colorSpace} 0.7 0.5 0.3) ${colorSpace} r g b / alpha)`,                      `color(${colorSpace} 0.7 0.5 0.3)`);
diff --git a/tests/wpt/tests/css/css-color/parsing/color-invalid-color-mix-function.html b/tests/wpt/tests/css/css-color/parsing/color-invalid-color-mix-function.html
index 2f815f81400..f73f2515d85 100644
--- a/tests/wpt/tests/css/css-color/parsing/color-invalid-color-mix-function.html
+++ b/tests/wpt/tests/css/css-color/parsing/color-invalid-color-mix-function.html
@@ -74,7 +74,7 @@
         test_invalid_value(`color`, `color-mix(${colorSpace}(10% 20 30), ${colorSpace}(50% 60 70))`); // Missing interpolation method.
     }
 
-    for (const colorSpace of [ "srgb", "srgb-linear", "display-p3", "a98-rgb", "prophoto-rgb", "rec2020", "xyz", "xyz-d50", "xyz-d65" ]) {
+    for (const colorSpace of [ "srgb", "srgb-linear", "display-p3", "display-p3-linear", "a98-rgb", "prophoto-rgb", "rec2020", "xyz", "xyz-d50", "xyz-d65" ]) {
         test_invalid_value(`color`, `color-mix(in ${colorSpace}, color(${colorSpace} .1 .2 .3) -10%, color(${colorSpace} .5 .6 .7))`); // Percentages less than 0 are not valid.
         test_invalid_value(`color`, `color-mix(in ${colorSpace}, color(${colorSpace} .1 .2 .3) 150%, color(${colorSpace} .5 .6 .7))`); // Percentages greater than 100 are not valid.
         test_invalid_value(`color`, `color-mix(in ${colorSpace}, color(${colorSpace} .1 .2 .3) 0%, color(${colorSpace} .5 .6 .7) 0%)`); // Sum of percengates cannot be 0%.
diff --git a/tests/wpt/tests/css/css-color/parsing/color-invalid-relative-color.html b/tests/wpt/tests/css/css-color/parsing/color-invalid-relative-color.html
index c6f1370abdc..55993695a8c 100644
--- a/tests/wpt/tests/css/css-color/parsing/color-invalid-relative-color.html
+++ b/tests/wpt/tests/css/css-color/parsing/color-invalid-relative-color.html
@@ -109,7 +109,7 @@
         test_invalid_value(`color`, `${colorSpace}(from ${colorSpace}(.70 45 30) l c calc(h + 1deg))`);
     }
 
-    for (const colorSpace of [ "srgb", "srgb-linear", "a98-rgb", "rec2020", "prophoto-rgb", "display-p3" ]) {
+    for (const colorSpace of [ "srgb", "srgb-linear", "a98-rgb", "rec2020", "prophoto-rgb", "display-p3", "display-p3-linear" ]) {
         // Testing invalid values.
         test_invalid_value(`color`, `color(from color(${colorSpace} 0.7 0.5 0.3) ${colorSpace} 10deg g b)`);
         test_invalid_value(`color`, `color(from color(${colorSpace} 0.7 0.5 0.3) ${colorSpace} r 10deg b)`);
diff --git a/tests/wpt/tests/css/css-color/parsing/color-valid-color-function.html b/tests/wpt/tests/css/css-color/parsing/color-valid-color-function.html
index bfc932104e5..779eba53a88 100644
--- a/tests/wpt/tests/css/css-color/parsing/color-valid-color-function.html
+++ b/tests/wpt/tests/css/css-color/parsing/color-valid-color-function.html
@@ -12,7 +12,7 @@
 </head>
 <body>
 <script>
-for (const colorSpace of [ "srgb", "srgb-linear", "a98-rgb", "rec2020", "prophoto-rgb", "display-p3", "xyz", "xyz-d50", "xyz-d65" ]) {
+for (const colorSpace of [ "srgb", "srgb-linear", "a98-rgb", "rec2020", "prophoto-rgb", "display-p3", "display-p3-linear", "xyz", "xyz-d50", "xyz-d65" ]) {
     const resultColorSpace = colorSpace == "xyz" ? "xyz-d65" : colorSpace;
 
     test_valid_value("color", `color(${colorSpace} 0% 0% 0%)`, `color(${resultColorSpace} 0 0 0)`);
diff --git a/tests/wpt/tests/css/css-color/parsing/color-valid-color-mix-function.html b/tests/wpt/tests/css/css-color/parsing/color-valid-color-mix-function.html
index cf61f731f22..d9ae70afa28 100644
--- a/tests/wpt/tests/css/css-color/parsing/color-valid-color-mix-function.html
+++ b/tests/wpt/tests/css/css-color/parsing/color-valid-color-mix-function.html
@@ -389,7 +389,7 @@
     fuzzy_test_valid_color(`color-mix(in oklab, oklab(0.1 0.2 0.3 / none), oklab(0.5 0.6 0.7 / 0.5))`, `color-mix(in oklab, oklab(0.1 0.2 0.3 / none), oklab(0.5 0.6 0.7 / 0.5))`);
     fuzzy_test_valid_color(`color-mix(in oklab, oklab(0.1 0.2 0.3 / none), oklab(0.5 0.6 0.7 / none))`, `color-mix(in oklab, oklab(0.1 0.2 0.3 / none), oklab(0.5 0.6 0.7 / none))`);
 
-    for (const colorSpace of [ "srgb", "srgb-linear", "display-p3", "a98-rgb", "prophoto-rgb", "rec2020", "xyz", "xyz-d50", "xyz-d65" ]) {
+    for (const colorSpace of [ "srgb", "srgb-linear", "display-p3", "display-p3-linear", "a98-rgb", "prophoto-rgb", "rec2020", "xyz", "xyz-d50", "xyz-d65" ]) {
       const resultColorSpace = colorSpace == "xyz" ? "xyz-d65" : colorSpace;
 
       fuzzy_test_valid_color(`color-mix(in ${colorSpace}, color(${colorSpace} .1 .2 .3), color(${colorSpace} .5 .6 .7))`, `color-mix(in ${resultColorSpace}, color(${resultColorSpace} 0.1 0.2 0.3), color(${resultColorSpace} 0.5 0.6 0.7))`);
diff --git a/tests/wpt/tests/css/css-color/parsing/color-valid-relative-color.html b/tests/wpt/tests/css/css-color/parsing/color-valid-relative-color.html
index 142f96bcf9b..1290b7dc125 100644
--- a/tests/wpt/tests/css/css-color/parsing/color-valid-relative-color.html
+++ b/tests/wpt/tests/css/css-color/parsing/color-valid-relative-color.html
@@ -582,7 +582,7 @@
     // color-mix
     fuzzy_test_valid_color(`oklch(from color-mix(in oklch, oklch(0.7 0.45 30), oklch(0.7 0.45 30)) l c h / alpha)`);
 
-    for (const colorSpace of [ "srgb", "srgb-linear", "a98-rgb", "rec2020", "prophoto-rgb", "display-p3" ]) {
+    for (const colorSpace of [ "srgb", "srgb-linear", "a98-rgb", "rec2020", "prophoto-rgb", "display-p3", "display-p3-linear" ]) {
         // Testing no modifications.
         fuzzy_test_valid_color(`color(from color(${colorSpace} 0.7 0.5 0.3) ${colorSpace} r g b)`);
         fuzzy_test_valid_color(`color(from color(${colorSpace} 0.7 0.5 0.3) ${colorSpace} r g b / alpha)`);
diff --git a/tests/wpt/tests/css/css-conditional/container-queries/container-name-tree-scoped.html b/tests/wpt/tests/css/css-conditional/container-queries/container-name-tree-scoped.html
index c2962ffa8d8..48e5ab03f4e 100644
--- a/tests/wpt/tests/css/css-conditional/container-queries/container-name-tree-scoped.html
+++ b/tests/wpt/tests/css/css-conditional/container-queries/container-name-tree-scoped.html
@@ -1,6 +1,6 @@
 <!doctype html>
 <meta charset="utf-8">
-<title>CSS Container Queries Test: Tree scoped container-name</title>
+<title>CSS Container Queries Test: Container names are not tree-scoped</title>
 <link rel="help" href="https://drafts.csswg.org/css-conditional-5/#query-container">
 <link rel="help" href="https://drafts.csswg.org/css-scoping-1/#shadow-names">
 <script src="/resources/testharness.js"></script>
@@ -21,9 +21,9 @@
     #container-name-host > div {
       container-type: inline-size;
     }
-    #t1 { color: green; }
+    #t1 { color: red; }
     @container foo (width > 0px) {
-      #t1 { color: red; }
+      #t1 { color: green; }
     }
   </style>
 </div>
@@ -46,9 +46,9 @@
     #container-name-slotted > div > div {
       container-type: inline-size;
     }
-    #t2 { color: green; }
+    #t2 { color: red; }
     @container foo (width > 0px) {
-      #t2 { color: red; }
+      #t2 { color: green; }
     }
   </style>
 
@@ -95,11 +95,11 @@
 
   test(() => {
     assert_equals(getComputedStyle(t1).color, green);
-  }, "Outer scope query should not match container-name set by :host rule in shadow tree");
+  }, "Outer scope query should match container-name set by :host rule in shadow tree");
 
   test(() => {
     assert_equals(getComputedStyle(t2).color, green);
-  }, "Outer scope query should not match container-name set by ::slotted rule in shadow tree");
+  }, "Outer scope query should match container-name set by ::slotted rule in shadow tree");
 
   test(() => {
     assert_equals(getComputedStyle(t3host.shadowRoot.querySelector('#t3')).color, green);
diff --git a/tests/wpt/tests/css/css-counter-styles/japanese-formal/counter-japanese-formal-extended-ref.html b/tests/wpt/tests/css/css-counter-styles/japanese-formal/counter-japanese-formal-extended-ref.html
index e7dc0f5a02d..6940d9a5122 100644
--- a/tests/wpt/tests/css/css-counter-styles/japanese-formal/counter-japanese-formal-extended-ref.html
+++ b/tests/wpt/tests/css/css-counter-styles/japanese-formal/counter-japanese-formal-extended-ref.html
@@ -25,15 +25,14 @@
 <div>&#x58f1;&#x5104;&#x58f1;</div>
 <div>&#x58f1;&#x5104;&#x58f1;&#x842c;</div>
 <div>&#x58f1;&#x5104;&#x58f1;&#x62fe;&#x842c;</div>
-<div>&#x58f1;&#x5104;&#x58f1;&#x62fe;&#x842c;</div>
+<div>&#x58f1;&#x5104;&#x58f1;&#x767e;&#x842c;</div>
 <div>&#x58f1;&#x5104;&#x58f1;&#x9621;&#x842c;</div>
 
 <!-- Test fourth group marker (兆) - trillions group -->
 <div>&#x58f1;&#x5146;</div>
 <div>&#x5f10;&#x5146;</div>
 <div>&#x4f0d;&#x5146;</div>
-<div>&#x4e5d;&#x9621;&#x4e5d;&#x767e;&#x4e5d;&#x62fe;&#x4e5d;&#x5146;&#x4e5d;&#x9621;&#x4e5d;&#x767e;&#x4e5d;&#x62fe;&#x4e5d;&#x5104;&#x4e5d;&#x9621;&#x4e5d;&#x767e;&#x4e5d;&#x62fe;&#x4e5d;&#x842c;&#x4e5d;&#x9621;&#x4e5d;&#x767e;&#x4e5d;&#x62fe;&#x4e5d;</div>
-
+<div>&#x4e5d;&#x5146;&#x4e5d;&#x9621;&#x4e5d;&#x767e;&#x4e5d;&#x62fe;&#x4e5d;&#x5104;&#x4e5d;&#x9621;&#x4e5d;&#x767e;&#x4e5d;&#x62fe;&#x4e5d;&#x842C;&#x4e5d;&#x9621;&#x4e5d;&#x767e;&#x4e5d;&#x62fe;&#x4e5d;</div>
 <!-- Test extended ranges (algorithm step 3: group markers up to 10^16) -->
 <!-- Test 10^13 range (ten-trillions) -->
 <div>&#x58f1;&#x62fe;&#x5146;</div>
@@ -46,23 +45,23 @@
 <div>&#x4e5d;&#x767e;&#x4e5d;&#x62fe;&#x4e5d;&#x5146;&#x4e5d;&#x9621;&#x4e5d;&#x767e;&#x4e5d;&#x62fe;&#x4e5d;&#x5104;&#x4e5d;&#x9621;&#x4e5d;&#x767e;&#x4e5d;&#x62fe;&#x4e5d;&#x842c;&#x4e5d;&#x9621;&#x4e5d;&#x767e;&#x4e5d;&#x62fe;&#x4e5d;</div>
 
 <!-- Test complex patterns in trillions group (step 5: drop ones, step 6: drop zeros) -->
-<div>&#x58f1;&#x9621;&#x5f10;&#x767e;&#x53c2;&#x62fe;&#x56db;&#x5146;&#x4f0d;&#x767e;&#x516d;&#x62fe;&#x4e03;&#x5104;&#x516b;&#x9621;&#x4e5d;&#x842c;&#x58f1;&#x767e;&#x5f10;&#x62fe;&#x53c2;</div>
+<div>&#x58f1;&#x5146;&#x5f10;&#x9621;&#x53c2;&#x767e;&#x56db;&#x62Fe;&#x4f0d;&#x5104;&#x516d;&#x9621;&#x4e03;&#x767E;&#x516b;&#x62FE;&#x4e5d;&#x842c;&#x58f1;&#x767e;&#x5f10;&#x62fe;&#x53c2;</div>
 <div>&#x58f1;&#x5146;&#x58f1;</div>
 <div>&#x58f1;&#x5146;&#x58f1;&#x842c;</div>
+<div>&#x58f1;&#x5146;&#x58f1;&#x767e;&#x842C;</div>
 <div>&#x58f1;&#x5146;&#x58f1;&#x5104;</div>
 <div>&#x58f1;&#x5146;&#x58f1;&#x767e;&#x5104;</div>
-<div>&#x58f1;&#x5146;&#x58f1;&#x62fe;&#x5104;</div>
 <div>&#x58f1;&#x5146;&#x58f1;&#x9621;&#x5104;</div>
 
 <!-- Test interaction between multiple groups -->
-<div>&#x58f1;&#x9621;&#x58f1;&#x5146;&#x58f1;&#x9621;&#x58f1;&#x5104;&#x58f1;&#x9621;&#x58f1;&#x842c;&#x58f1;&#x9621;&#x58f1;</div>
-<div>&#x58f1;&#x9621;&#x58f1;&#x62fe;&#x5146;&#x58f1;&#x767e;&#x58f1;&#x62fe;&#x5104;&#x58f1;&#x9621;&#x58f1;&#x62fe;&#x842c;&#x58f1;&#x767e;&#x58f1;</div>
-<div>&#x58f1;&#x9621;&#x58f1;&#x767e;&#x58f1;&#x842c;&#x58f1;</div>
-<div>&#x4f0d;&#x9621;&#x4f0d;&#x5146;&#x4f0d;&#x9621;&#x4f0d;&#x5104;&#x4f0d;&#x9621;&#x4f0d;&#x842c;&#x4f0d;&#x9621;&#x4f0d;</div>
+<div>&#x58f1;&#x5146;&#x58f1;&#x62FE;&#x5104;&#x58f1;&#x767e;&#x842c;&#x58f1;&#x9621;&#x58f1;</div>
+<div>&#x58f1;&#x5146;&#x58f1;&#x767e;&#x58f1;&#x5104;&#x58f1;&#x767e;&#x58f1;&#x842c;&#x58f1;&#x767e;&#x58f1;</div>
+<div>&#x58f1;&#x5146;&#x58f1;&#x5104;&#x58f1;&#x842c;&#x58f1;</div>
+<div>&#x4f0d;&#x5146;&#x4f0d;&#x62fe;&#x5104;&#x4f0d;&#x767e;&#x842c;&#x4f0d;&#x9621;&#x4f0d;</div>
 
 <!-- Test zero dropping behavior across different groups -->
 <div>&#x58f1;&#x5146;</div>
-<div>&#x58f1;&#x5104;</div>
+<div>&#x58F1;&#x62FE;&#x5104;</div>
 <div>&#x58f1;&#x767e;&#x842c;</div>
 <div>&#x58f1;&#x9621;</div>
 <div>&#x58f1;&#x62fe;&#x5146;</div>
diff --git a/tests/wpt/tests/css/css-counter-styles/japanese-informal/counter-japanese-informal-extended-ref.html b/tests/wpt/tests/css/css-counter-styles/japanese-informal/counter-japanese-informal-extended-ref.html
index 5957cd240a5..39979c4c8e6 100644
--- a/tests/wpt/tests/css/css-counter-styles/japanese-informal/counter-japanese-informal-extended-ref.html
+++ b/tests/wpt/tests/css/css-counter-styles/japanese-informal/counter-japanese-informal-extended-ref.html
@@ -11,8 +11,8 @@
 <div>&#x4e00;&#x4e07;&#x4e8c;&#x5343;&#x4e09;&#x767e;&#x56db;&#x5341;&#x4e94;</div>
 <div>&#x4e00;&#x4e07;&#x4e00;</div>
 <div>&#x4e00;&#x4e07;&#x5341;</div>
-<div>&#x4e00;&#x4e07;&#x4e00;&#x767e;</div>
-<div>&#x4e00;&#x4e07;&#x4e00;&#x5343;</div>
+<div>&#x4e00;&#x4e07;&#x767e;</div>
+<div>&#x4e00;&#x4e07;&#x5343;</div>
 
 <!-- Test third group marker (億) - hundred-millions group -->
 <div>&#x4e00;&#x5104;</div>
@@ -25,48 +25,48 @@
 <div>&#x4e00;&#x5104;&#x4e00;</div>
 <div>&#x4e00;&#x5104;&#x4e00;&#x4e07;</div>
 <div>&#x4e00;&#x5104;&#x5341;&#x4e07;</div>
-<div>&#x4e00;&#x5104;&#x5341;&#x4e07;</div>
-<div>&#x4e00;&#x5104;&#x4e00;&#x5343;&#x4e07;</div>
+<div>&#x4e00;&#x5104;&#x767e;&#x4e07;</div>
+<div>&#x4e00;&#x5104;&#x5343;&#x4e07;</div>
 
 <!-- Test fourth group marker (兆) - trillions group -->
 <div>&#x4e00;&#x5146;</div>
 <div>&#x4e8c;&#x5146;</div>
 <div>&#x4e94;&#x5146;</div>
-<div>&#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x5146;&#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x5104;&#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x4e07;&#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;</div>
+<div>&#x4e5d;&#x5146;&#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x5104;&#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x4e07;&#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;</div>
 
 <!-- Test extended ranges (algorithm step 3: group markers up to 10^16) -->
 <!-- Test 10^13 range (ten-trillions) -->
-<div>&#x4e00;&#x5341;&#x5146;</div>
+<div>&#x5341;&#x5146;</div>
 <div>&#x4e94;&#x5341;&#x5146;</div>
 <div>&#x4e5d;&#x5341;&#x4e5d;&#x5146;&#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x5104;&#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x4e07;&#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;</div>
 
 <!-- Test 10^15 range (hundred-trillions) -->
-<div>&#x4e00;&#x767e;&#x5146;</div>
+<div>&#x767e;&#x5146;</div>
 <div>&#x4e94;&#x767e;&#x5146;</div>
 <div>&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x5146;&#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x5104;&#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x4e07;&#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;</div>
 
 <!-- Test complex patterns in trillions group (step 5: drop ones, step 6: drop zeros) -->
-<div>&#x4e00;&#x5343;&#x4e8c;&#x767e;&#x4e09;&#x5341;&#x56db;&#x5146;&#x4e94;&#x767e;&#x516d;&#x5341;&#x4e03;&#x5104;&#x516b;&#x5343;&#x4e5d;&#x4e07;&#x4e00;&#x767e;&#x4e8c;&#x5341;&#x4e09;</div>
+<div>&#x4e00;&#x5146;&#x4e8c;&#x5343;&#x4e09;&#x767e;&#x56db;&#x5341;&#x4e94;&#x5104;&#x516d;&#x5343;&#x4e03;&#x767e;&#x516b;&#x5341;&#x4e5d;&#x4e07;&#x767e;&#x4e8c;&#x5341;&#x4e09;</div>
 <div>&#x4e00;&#x5146;&#x4e00;</div>
 <div>&#x4e00;&#x5146;&#x4e00;&#x4e07;</div>
+<div>&#x4e00;&#x5146;&#x767e;&#x4e07;</div>
 <div>&#x4e00;&#x5146;&#x4e00;&#x5104;</div>
-<div>&#x4e00;&#x5146;&#x4e00;&#x767e;&#x5104;</div>
-<div>&#x4e00;&#x5146;&#x5341;&#x5104;</div>
-<div>&#x4e00;&#x5146;&#x4e00;&#x5343;&#x5104;</div>
+<div>&#x4e00;&#x5146;&#x767e;&#x5104;</div>
+<div>&#x4e00;&#x5146;&#x5343;&#x5104;</div>
 
 <!-- Test interaction between multiple groups -->
-<div>&#x4e00;&#x5343;&#x4e00;&#x5146;&#x4e00;&#x5343;&#x4e00;&#x5104;&#x4e00;&#x5343;&#x4e00;&#x4e07;&#x4e00;&#x5343;&#x4e00;</div>
-<div>&#x4e00;&#x5343;&#x5341;&#x5146;&#x4e00;&#x767e;&#x5341;&#x5104;&#x4e00;&#x5343;&#x5341;&#x4e07;&#x4e00;&#x767e;&#x4e00;</div>
-<div>&#x4e00;&#x5343;&#x767e;&#x4e07;&#x4e00;</div>
-<div>&#x4e94;&#x5343;&#x4e94;&#x5146;&#x4e94;&#x5343;&#x4e94;&#x5104;&#x4e94;&#x5343;&#x4e94;&#x4e07;&#x4e94;&#x5343;&#x4e94;</div>
+<div>&#x4e00;&#x5146;&#x5341;&#x5104;&#x767e;&#x4e07;&#x5343;&#x4e00;</div>
+<div>&#x4e00;&#x5146;&#x767e;&#x4e00;&#x5104;&#x767e;&#x4e00;&#x4e07;&#x767e;&#x4e00;</div>
+<div>&#x4e00;&#x5146;&#x4e00;&#x5104;&#x4e00;&#x4e07;&#x4e00;</div>
+<div>&#x4e94;&#x5146;&#x4e94;&#x5341;&#x5104;&#x4e94;&#x767e;&#x4e07;&#x4e94;&#x5343;&#x4e94;</div>
 
 <!-- Test zero dropping behavior across different groups -->
 <div>&#x4e00;&#x5146;</div>
-<div>&#x4e00;&#x5104;</div>
-<div>&#x4e00;&#x767e;&#x4e07;</div>
-<div>&#x4e00;&#x5343;</div>
+<div>&#x5341;&#x5104;</div>
+<div>&#x767e;&#x4e07;</div>
+<div>&#x5343;</div>
 <div>&#x5341;&#x5146;</div>
-<div>&#x4e00;&#x767e;&#x5146;</div>
+<div>&#x767e;&#x5146;</div>
 
 <!-- Test boundary values at the edge of range (-10^16+1 to 10^16-1) -->
 <div>&#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x5146;&#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x5104;&#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x4e07;&#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;</div>
diff --git a/tests/wpt/tests/css/css-counter-styles/korean-hangul-formal/counter-korean-hangul-formal-extended-ref.html b/tests/wpt/tests/css/css-counter-styles/korean-hangul-formal/counter-korean-hangul-formal-extended-ref.html
index 3adaa814ab8..525b1c9f73f 100644
--- a/tests/wpt/tests/css/css-counter-styles/korean-hangul-formal/counter-korean-hangul-formal-extended-ref.html
+++ b/tests/wpt/tests/css/css-counter-styles/korean-hangul-formal/counter-korean-hangul-formal-extended-ref.html
@@ -11,9 +11,9 @@
 <!-- Test complex patterns within ten-thousands group (algorithm step 4: digit markers) -->
 <div>&#xc77c;&#xb9cc; &#xc774;&#xcc9c;&#xc0bc;&#xbc31;&#xc0ac;&#xc2ed;&#xc624;</div>
 <div>&#xc77c;&#xb9cc; &#xc77c;</div>
-<div>&#xc77c;&#xb9cc; &#xc2ed;</div>
-<div>&#xc77c;&#xb9cc; &#xbc31;</div>
-<div>&#xc77c;&#xb9cc; &#xcc9c;</div>
+<div>&#xc77c;&#xb9cc; &#xc77c;&#xc2ed;</div>
+<div>&#xc77c;&#xb9cc; &#xc77c;&#xbc31;</div>
+<div>&#xc77c;&#xb9cc; &#xc77c;&#xcc9c;</div>
 
 <!-- Test third group marker (억) - hundred-millions group -->
 <div>&#xc77c;&#xc5b5;</div>
@@ -25,9 +25,9 @@
 <div>&#xc77c;&#xc5b5; &#xc774;&#xcc9c;&#xc0bc;&#xbc31;&#xc0ac;&#xc2ed;&#xc624;&#xb9cc; &#xc721;&#xcc9c;&#xce60;&#xbc31;&#xd314;&#xc2ed;&#xad6c;</div>
 <div>&#xc77c;&#xc5b5; &#xc77c;</div>
 <div>&#xc77c;&#xc5b5; &#xc77c;&#xb9cc;</div>
-<div>&#xc77c;&#xc5b5; &#xc2ed;&#xb9cc;</div>
-<div>&#xc77c;&#xc5b5; &#xbc31;&#xb9cc;</div>
-<div>&#xc77c;&#xc5b5; &#xcc9c;&#xb9cc;</div>
+<div>&#xc77c;&#xc5b5; &#xc77c;&#xc2ed;&#xb9cc;</div>
+<div>&#xc77c;&#xc5b5; &#xc77c;&#xbc31;&#xb9cc;</div>
+<div>&#xc77c;&#xc5b5; &#xc77c;&#xcc9c;&#xb9cc;</div>
 
 <!-- Test fourth group marker (조) - trillions group -->
 <div>&#xc77c;&#xc870;</div>
@@ -37,37 +37,37 @@
 
 <!-- Test extended ranges (algorithm step 3: group markers up to 10^16) -->
 <!-- Test 10^13 range (ten-trillions) -->
-<div>&#xc2ed;&#xc870;</div>
+<div>&#xc77c;&#xc2ed;&#xc870;</div>
 <div>&#xc624;&#xc2ed;&#xc870;</div>
 <div>&#xad6c;&#xc2ed;&#xad6c;&#xc870; &#xad6c;&#xcc9c;&#xad6c;&#xbc31;&#xad6c;&#xc2ed;&#xad6c;&#xc5b5; &#xad6c;&#xcc9c;&#xad6c;&#xbc31;&#xad6c;&#xc2ed;&#xad6c;&#xb9cc; &#xad6c;&#xcc9c;&#xad6c;&#xbc31;&#xad6c;&#xc2ed;&#xad6c;</div>
 
 <!-- Test 10^15 range (hundred-trillions) -->
-<div>&#xbc31;&#xc870;</div>
+<div>&#xc77c;&#xbc31;&#xc870;</div>
 <div>&#xc624;&#xbc31;&#xc870;</div>
 <div>&#xad6c;&#xbc31;&#xad6c;&#xc2ed;&#xad6c;&#xc870; &#xad6c;&#xcc9c;&#xad6c;&#xbc31;&#xad6c;&#xc2ed;&#xad6c;&#xc5b5; &#xad6c;&#xcc9c;&#xad6c;&#xbc31;&#xad6c;&#xc2ed;&#xad6c;&#xb9cc; &#xad6c;&#xcc9c;&#xad6c;&#xbc31;&#xad6c;&#xc2ed;&#xad6c;</div>
 
 <!-- Test complex patterns in trillions group (step 5: drop ones, step 6: drop zeros) -->
-<div>&#xc77c;&#xc870; &#xc774;&#xcc9c;&#xc0bc;&#xbc31;&#xc0ac;&#xc2ed;&#xc624;&#xc5b5; &#xc721;&#xcc9c;&#xce60;&#xbc31;&#xd314;&#xc2ed;&#xad6c;&#xb9cc; &#xbc31;&#xc774;&#xc2ed;&#xc0bc;</div>
+<div>&#xc77c;&#xc870; &#xc774;&#xcc9c;&#xc0bc;&#xbc31;&#xc0ac;&#xc2ed;&#xc624;&#xc5b5; &#xc721;&#xcc9c;&#xce60;&#xbc31;&#xd314;&#xc2ed;&#xad6c;&#xb9cc; &#xc77c;&#xbc31;&#xc774;&#xc2ed;&#xc0bc;</div>
 <div>&#xc77c;&#xc870; &#xc77c;</div>
 <div>&#xc77c;&#xc870; &#xc77c;&#xb9cc;</div>
-<div>&#xc77c;&#xc870; &#xbc31;&#xb9cc;</div>
-<div>&#xc77c;&#xc870; &#xcc9c;&#xb9cc;</div>
-<div>&#xc77c;&#xc870; &#xcc9c;&#xc5b5;</div>
-<div>&#xc77c;&#xc870; &#xcc9c;&#xc77c;&#xc5b5;</div>
+<div>&#xc77c;&#xc870; &#xc77c;&#xbc31;&#xb9cc;</div>
+<div>&#xc77c;&#xc870; &#xc77c;&#xc5b5;</div>
+<div>&#xc77c;&#xc870; &#xc77c;&#xbc31;&#xc5b5;</div>
+<div>&#xc77c;&#xc870; &#xc77c;&#xcc9c;&#xc5b5;</div>
 
 <!-- Test interaction between multiple groups -->
-<div>&#xc77c;&#xc870; &#xcc9c;&#xc77c;&#xc5b5; &#xbc31;&#xc77c;&#xb9cc; &#xcc9c;&#xc77c;</div>
-<div>&#xc77c;&#xc870; &#xcc9c;&#xc2ed;&#xc5b5; &#xcc9c;&#xc2ed;&#xb9cc; &#xcc9c;&#xc2ed;&#xc77c;</div>
-<div>&#xc77c;&#xc870; &#xcc9c;&#xc5b5; &#xc2ed;&#xb9cc; &#xc77c;</div>
-<div>&#xc624;&#xc870; &#xc624;&#xcc9c;&#xc624;&#xc5b5; &#xc624;&#xbc31;&#xc624;&#xb9cc; &#xc624;&#xcc9c;&#xc624;</div>
+<div>&#xc77c;&#xc870; &#xc77c;&#xc2ed;&#xc5b5; &#xc77c;&#xbc31;&#xb9cc; &#xc77c;&#xcc9c;&#xc77c;</div>
+<div>&#xc77c;&#xc870; &#xc77c;&#xbc31;&#xc77c;&#xc5b5; &#xc77c;&#xbc31;&#xc77c;&#xb9cc; &#xc77c;&#xbc31;&#xc77c;</div>
+<div>&#xc77c;&#xc870; &#xc77c;&#xc5b5; &#xc77c;&#xb9cc; &#xc77c;</div>
+<div>&#xc624;&#xc870; &#xc624;&#xc2ed;&#xc5b5; &#xc624;&#xbc31;&#xb9cc; &#xc624;&#xcc9c;&#xc624;</div>
 
 <!-- Test zero dropping behavior across different groups -->
 <div>&#xc77c;&#xc870;</div>
-<div>&#xc2ed;&#xc5b5;</div>
-<div>&#xbc31;&#xb9cc;</div>
-<div>&#xcc9c;</div>
-<div>&#xc2ed;&#xc870;</div>
-<div>&#xbc31;&#xc870;</div>
+<div>&#xc77c;&#xc2ed;&#xc5b5;</div>
+<div>&#xc77c;&#xbc31;&#xb9cc;</div>
+<div>&#xc77c;&#xcc9c;</div>
+<div>&#xc77c;&#xc2ed;&#xc870;</div>
+<div>&#xc77c;&#xbc31;&#xc870;</div>
 
 <!-- Test boundary values at the edge of range (-10^16+1 to 10^16-1) -->
 <div>&#xad6c;&#xcc9c;&#xad6c;&#xbc31;&#xad6c;&#xc2ed;&#xad6c;&#xc870; &#xad6c;&#xcc9c;&#xad6c;&#xbc31;&#xad6c;&#xc2ed;&#xad6c;&#xc5b5; &#xad6c;&#xcc9c;&#xad6c;&#xbc31;&#xad6c;&#xc2ed;&#xad6c;&#xb9cc; &#xad6c;&#xcc9c;&#xad6c;&#xbc31;&#xad6c;&#xc2ed;&#xad6c;</div>
diff --git a/tests/wpt/tests/css/css-counter-styles/korean-hanja-formal/counter-korean-hanja-formal-extended-ref.html b/tests/wpt/tests/css/css-counter-styles/korean-hanja-formal/counter-korean-hanja-formal-extended-ref.html
index a5b55ccd19e..c410f2b8ef5 100644
--- a/tests/wpt/tests/css/css-counter-styles/korean-hanja-formal/counter-korean-hanja-formal-extended-ref.html
+++ b/tests/wpt/tests/css/css-counter-styles/korean-hanja-formal/counter-korean-hanja-formal-extended-ref.html
@@ -5,72 +5,72 @@
 <!-- Test second group marker (萬) - ten-thousands group -->
 <div>&#x58f9;&#x842c;</div>
 <div>&#x8cb3;&#x842c;</div>
-<div>&#x4f0d;&#x842c;</div>
-<div>&#x7396;&#x842c; &#x7396;&#x4edf;&#x7396;&#x4f70;&#x7396;&#x62fe;&#x7396;</div>
+<div>&#x4e94;&#x842c;</div>
+<div>&#x4e5d;&#x842c; &#x4e5d;&#x4edf;&#x4e5d;&#x767E;&#x4e5d;&#x62fe;&#x4e5d;</div>
 
 <!-- Test complex patterns within ten-thousands group (algorithm step 4: digit markers) -->
-<div>&#x58f9;&#x842c; &#x8cb3;&#x4edf;&#x53c3;&#x4f70;&#x8086;&#x62fe;&#x4f0d;</div>
+<div>&#x58f9;&#x842c; &#x8cb3;&#x4edf;&#x53c3;&#x767E;&#x56db;&#x62fe;&#x4e94;</div>
 <div>&#x58f9;&#x842c; &#x58f9;</div>
-<div>&#x58f9;&#x842c; &#x62fe;</div>
-<div>&#x58f9;&#x842c; &#x58f9;&#x4f70;</div>
+<div>&#x58f9;&#x842c; &#x58f9;&#x62fe;</div>
+<div>&#x58f9;&#x842c; &#x58f9;&#x767E;</div>
 <div>&#x58f9;&#x842c; &#x58f9;&#x4edf;</div>
 
 <!-- Test third group marker (億) - hundred-millions group -->
 <div>&#x58f9;&#x5104;</div>
 <div>&#x8cb3;&#x5104;</div>
-<div>&#x4f0d;&#x5104;</div>
-<div>&#x7396;&#x5104; &#x7396;&#x4edf;&#x7396;&#x4f70;&#x7396;&#x62fe;&#x7396;&#x842c; &#x7396;&#x4edf;&#x7396;&#x4f70;&#x7396;&#x62fe;&#x7396;</div>
+<div>&#x4e94;&#x5104;</div>
+<div>&#x4e5d;&#x5104; &#x4e5d;&#x4edf;&#x4e5d;&#x767E;&#x4e5d;&#x62fe;&#x4e5d;&#x842c; &#x4e5d;&#x4edf;&#x4e5d;&#x767E;&#x4e5d;&#x62fe;&#x4e5d;</div>
 
 <!-- Test complex patterns within hundred-millions group (algorithm step 6: zero dropping) -->
-<div>&#x58f9;&#x5104; &#x8cb3;&#x4edf;&#x53c3;&#x4f70;&#x8086;&#x62fe;&#x4f0d;&#x842c; &#x9678;&#x4edf;&#x67d2;&#x4f70;&#x634c;&#x62fe;&#x7396;</div>
+<div>&#x58f9;&#x5104; &#x8cb3;&#x4edf;&#x53c3;&#x767E;&#x56db;&#x62fe;&#x4e94;&#x842c; &#x516d;&#x4edf;&#x4e03;&#x767E;&#x516b;&#x62fe;&#x4e5d;</div>
 <div>&#x58f9;&#x5104; &#x58f9;</div>
 <div>&#x58f9;&#x5104; &#x58f9;&#x842c;</div>
-<div>&#x58f9;&#x5104; &#x62fe;&#x842c;</div>
-<div>&#x58f9;&#x5104; &#x58f9;&#x4f70;&#x842c;</div>
+<div>&#x58f9;&#x5104; &#x58f9;&#x62fe;&#x842c;</div>
+<div>&#x58f9;&#x5104; &#x58f9;&#x767E;&#x842c;</div>
 <div>&#x58f9;&#x5104; &#x58f9;&#x4edf;&#x842c;</div>
 
 <!-- Test fourth group marker (兆) - trillions group -->
 <div>&#x58f9;&#x5146;</div>
 <div>&#x8cb3;&#x5146;</div>
-<div>&#x4f0d;&#x5146;</div>
-<div>&#x7396;&#x5146; &#x7396;&#x4edf;&#x7396;&#x4f70;&#x7396;&#x62fe;&#x7396;&#x5104; &#x7396;&#x4edf;&#x7396;&#x4f70;&#x7396;&#x62fe;&#x7396;&#x842c; &#x7396;&#x4edf;&#x7396;&#x4f70;&#x7396;&#x62fe;&#x7396;</div>
+<div>&#x4e94;&#x5146;</div>
+<div>&#x4e5d;&#x5146; &#x4e5d;&#x4edf;&#x4e5d;&#x767E;&#x4e5d;&#x62fe;&#x4e5d;&#x5104; &#x4e5d;&#x4edf;&#x4e5d;&#x767E;&#x4e5d;&#x62fe;&#x4e5d;&#x842c; &#x4e5d;&#x4edf;&#x4e5d;&#x767E;&#x4e5d;&#x62fe;&#x4e5d;</div>
 
 <!-- Test extended ranges (algorithm step 3: group markers up to 10^16) -->
 <!-- Test 10^13 range (ten-trillions) -->
-<div>&#x62fe;&#x5146;</div>
-<div>&#x4f0d;&#x62fe;&#x5146;</div>
-<div>&#x7396;&#x62fe;&#x7396;&#x5146; &#x7396;&#x4edf;&#x7396;&#x4f70;&#x7396;&#x62fe;&#x7396;&#x5104; &#x7396;&#x4edf;&#x7396;&#x4f70;&#x7396;&#x62fe;&#x7396;&#x842c; &#x7396;&#x4edf;&#x7396;&#x4f70;&#x7396;&#x62fe;&#x7396;</div>
+<div>&#x58f9;&#x62fe;&#x5146;</div>
+<div>&#x4e94;&#x62fe;&#x5146;</div>
+<div>&#x4e5d;&#x62fe;&#x4e5d;&#x5146; &#x4e5d;&#x4edf;&#x4e5d;&#x767E;&#x4e5d;&#x62fe;&#x4e5d;&#x5104; &#x4e5d;&#x4edf;&#x4e5d;&#x767E;&#x4e5d;&#x62fe;&#x4e5d;&#x842c; &#x4e5d;&#x4edf;&#x4e5d;&#x767E;&#x4e5d;&#x62fe;&#x4e5d;</div>
 
 <!-- Test 10^15 range (hundred-trillions) -->
-<div>&#x58f9;&#x4f70;&#x5146;</div>
-<div>&#x4f0d;&#x4f70;&#x5146;</div>
-<div>&#x7396;&#x4f70;&#x7396;&#x62fe;&#x7396;&#x5146; &#x7396;&#x4edf;&#x7396;&#x4f70;&#x7396;&#x62fe;&#x7396;&#x5104; &#x7396;&#x4edf;&#x7396;&#x4f70;&#x7396;&#x62fe;&#x7396;&#x842c; &#x7396;&#x4edf;&#x7396;&#x4f70;&#x7396;&#x62fe;&#x7396;</div>
+<div>&#x58f9;&#x767E;&#x5146;</div>
+<div>&#x4e94;&#x767E;&#x5146;</div>
+<div>&#x4e5d;&#x767E;&#x4e5d;&#x62fe;&#x4e5d;&#x5146; &#x4e5d;&#x4edf;&#x4e5d;&#x767E;&#x4e5d;&#x62fe;&#x4e5d;&#x5104; &#x4e5d;&#x4edf;&#x4e5d;&#x767E;&#x4e5d;&#x62fe;&#x4e5d;&#x842c; &#x4e5d;&#x4edf;&#x4e5d;&#x767E;&#x4e5d;&#x62fe;&#x4e5d;</div>
 
 <!-- Test complex patterns in trillions group (step 5: drop ones, step 6: drop zeros) -->
-<div>&#x58f9;&#x5146; &#x8cb3;&#x4edf;&#x53c3;&#x4f70;&#x8086;&#x62fe;&#x4f0d;&#x5104; &#x9678;&#x4edf;&#x67d2;&#x4f70;&#x634c;&#x62fe;&#x7396;&#x842c; &#x58f9;&#x4f70;&#x8cb3;&#x62fe;&#x53c3;</div>
+<div>&#x58f9;&#x5146; &#x8cb3;&#x4edf;&#x53c3;&#x767E;&#x56db;&#x62fe;&#x4e94;&#x5104; &#x516d;&#x4edf;&#x4e03;&#x767E;&#x516b;&#x62fe;&#x4e5d;&#x842c; &#x58f9;&#x767E;&#x8cb3;&#x62fe;&#x53c3;</div>
 <div>&#x58f9;&#x5146; &#x58f9;</div>
 <div>&#x58f9;&#x5146; &#x58f9;&#x842c;</div>
-<div>&#x58f9;&#x5146; &#x58f9;&#x4f70;&#x842c;</div>
-<div>&#x58f9;&#x5146; &#x58f9;&#x4edf;&#x842c;</div>
+<div>&#x58f9;&#x5146; &#x58f9;&#x767E;&#x842c;</div>
+<div>&#x58f9;&#x5146; &#x58f9;&#x5104;</div>
+<div>&#x58f9;&#x5146; &#x58f9;&#x767e;&#x5104;</div>
 <div>&#x58f9;&#x5146; &#x58f9;&#x4edf;&#x5104;</div>
-<div>&#x58f9;&#x5146; &#x58f9;&#x4edf;&#x58f9;&#x4f70;&#x5104;</div>
 
 <!-- Test interaction between multiple groups -->
-<div>&#x58f9;&#x5146; &#x58f9;&#x4edf;&#x58f9;&#x5104; &#x58f9;&#x4edf;&#x58f9;&#x842c; &#x58f9;&#x4edf;&#x58f9;</div>
-<div>&#x58f9;&#x5146; &#x62fe;&#x5104; &#x62fe;&#x842c; &#x62fe;&#x58f9;</div>
-<div>&#x58f9;&#x5146; &#x58f9;&#x4f70;&#x5104; &#x62fe;&#x842c; &#x58f9;</div>
-<div>&#x4f0d;&#x5146; &#x4f0d;&#x4edf;&#x4f0d;&#x5104; &#x4f0d;&#x4f70;&#x4f0d;&#x842c; &#x4f0d;&#x4edf;&#x4f0d;</div>
+<div>&#x58f9;&#x5146; &#x58f9;&#x62Fe;&#x5104; &#x58f9;&#x767e;&#x842c; &#x58f9;&#x4edf;&#x58f9;</div>
+<div>&#x58f9;&#x5146; &#x58f9;&#x767e;&#x58f9;&#x5104; &#x58f9;&#x767e;&#x58f9;&#x842c; &#x58f9;&#x767e;&#x58f9;</div>
+<div>&#x58f9;&#x5146; &#x58f9;&#x5104; &#x58f9;&#x842c; &#x58f9;</div>
+<div>&#x4e94;&#x5146; &#x4e94;&#x62Fe;&#x5104; &#x4e94;&#x767e;&#x842c; &#x4e94;&#x4edf;&#x4e94;</div>
 
 <!-- Test zero dropping behavior across different groups -->
 <div>&#x58f9;&#x5146;</div>
-<div>&#x62fe;&#x5104;</div>
-<div>&#x58f9;&#x4f70;&#x842c;</div>
+<div>&#x58f9;&#x62fe;&#x5104;</div>
+<div>&#x58f9;&#x767e;&#x842c;</div>
 <div>&#x58f9;&#x4edf;</div>
-<div>&#x62fe;&#x5146;</div>
-<div>&#x58f9;&#x4f70;&#x5146;</div>
+<div>&#x58f9;&#x62fe;&#x5146;</div>
+<div>&#x58f9;&#x767e;&#x5146;</div>
 
 <!-- Test boundary values at the edge of range (-10^16+1 to 10^16-1) -->
-<div>&#x7396;&#x4edf;&#x7396;&#x4f70;&#x7396;&#x62fe;&#x7396;&#x5146; &#x7396;&#x4edf;&#x7396;&#x4f70;&#x7396;&#x62fe;&#x7396;&#x5104; &#x7396;&#x4edf;&#x7396;&#x4f70;&#x7396;&#x62fe;&#x7396;&#x842c; &#x7396;&#x4edf;&#x7396;&#x4f70;&#x7396;&#x62fe;&#x7396;</div>
+<div>&#x4e5d;&#x4edf;&#x4e5d;&#x767e;&#x4e5d;&#x62fe;&#x4e5d;&#x5146; &#x4e5d;&#x4edf;&#x4e5d;&#x767e;&#x4e5d;&#x62fe;&#x4e5d;&#x5104; &#x4e5d;&#x4edf;&#x4e5d;&#x767e;&#x4e5d;&#x62fe;&#x4e5d;&#x842c; &#x4e5d;&#x4edf;&#x4e5d;&#x767e;&#x4e5d;&#x62fe;&#x4e5d;</div>
 <div>&#x58f9;&#x4edf;&#x5146;</div>
 
 <!-- Test out-of-range values (should fallback to cjk-decimal) -->
@@ -80,6 +80,5 @@
 <div>&#xb9c8;&#xc774;&#xb108;&#xc2a4; &#x58f9;&#x842c;</div>
 <div>&#xb9c8;&#xc774;&#xb108;&#xc2a4; &#x58f9;&#x5104;</div>
 <div>&#xb9c8;&#xc774;&#xb108;&#xc2a4; &#x58f9;&#x5146;</div>
-<div>&#xb9c8;&#xc774;&#xb108;&#xc2a4; &#x7396;&#x4edf;&#x7396;&#x4f70;&#x7396;&#x62fe;&#x7396;&#x5146; &#x7396;&#x4edf;&#x7396;&#x4f70;&#x7396;&#x62fe;&#x7396;&#x5104; &#x7396;&#x4edf;&#x7396;&#x4f70;&#x7396;&#x62fe;&#x7396;&#x842c; &#x7396;&#x4edf;&#x7396;&#x4f70;&#x7396;&#x62fe;&#x7396;</div>
-
+<div>&#xb9c8;&#xc774;&#xb108;&#xc2a4; &#x4e5d;&#x4edf;&#x4e5d;&#x767e;&#x4e5d;&#x62fe;&#x4e5d;&#x5146; &#x4e5d;&#x4edf;&#x4e5d;&#x767e;&#x4e5d;&#x62fe;&#x4e5d;&#x5104; &#x4e5d;&#x4edf;&#x4e5d;&#x767e;&#x4e5d;&#x62fe;&#x4e5d;&#x842c; &#x4e5d;&#x4edf;&#x4e5d;&#x767e;&#x4e5d;&#x62fe;&#x4e5d;</div>
 <div>&#xb9c8;&#xc774;&#xb108;&#xc2a4; &#x58f9;</div>
diff --git a/tests/wpt/tests/css/css-counter-styles/korean-hanja-informal/counter-korean-hanja-informal-extended-ref.html b/tests/wpt/tests/css/css-counter-styles/korean-hanja-informal/counter-korean-hanja-informal-extended-ref.html
index 18e6114d662..6091b35e539 100644
--- a/tests/wpt/tests/css/css-counter-styles/korean-hanja-informal/counter-korean-hanja-informal-extended-ref.html
+++ b/tests/wpt/tests/css/css-counter-styles/korean-hanja-informal/counter-korean-hanja-informal-extended-ref.html
@@ -2,84 +2,84 @@
 <link rel="help" href="https://drafts.csswg.org/css-counter-styles/#limited-korean">
 
 <!-- Extended range implementation tests (algorithm step 2: split into 4-digit groups) -->
-<!-- Test second group marker (万) - ten-thousands group -->
-<div>&#x4e00;&#x4e07;</div>
-<div>&#x4e8c;&#x4e07;</div>
-<div>&#x4e94;&#x4e07;</div>
-<div>&#x4e5d;&#x4e07; &#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;</div>
+<!-- Test second group marker (萬) - ten-thousands group -->
+<div>&#x842c;</div>
+<div>&#x4e8c;&#x842c;</div>
+<div>&#x4e94;&#x842c;</div>
+<div>&#x4e5d;&#x842c; &#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;</div>
 
 <!-- Test complex patterns within ten-thousands group (algorithm step 4: digit markers) -->
-<div>&#x4e00;&#x4e07; &#x4e8c;&#x5343;&#x4e09;&#x767e;&#x56db;&#x5341;&#x4e94;</div>
-<div>&#x4e00;&#x4e07; &#x4e00;</div>
-<div>&#x4e00;&#x4e07; &#x5341;</div>
-<div>&#x4e00;&#x4e07; &#x767e;</div>
-<div>&#x4e00;&#x4e07; &#x4e00;&#x5343;</div>
+<div>&#x842c; &#x4e8c;&#x5343;&#x4e09;&#x767e;&#x56db;&#x5341;&#x4e94;</div>
+<div>&#x842c; &#x4e00;</div>
+<div>&#x842c; &#x5341;</div>
+<div>&#x842c; &#x767e;</div>
+<div>&#x842c; &#x5343;</div>
 
 <!-- Test third group marker (億) - hundred-millions group -->
 <div>&#x4e00;&#x5104;</div>
 <div>&#x4e8c;&#x5104;</div>
 <div>&#x4e94;&#x5104;</div>
-<div>&#x4e5d;&#x5104; &#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x4e07; &#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;</div>
+<div>&#x4e5d;&#x5104; &#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x842c; &#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;</div>
 
 <!-- Test complex patterns within hundred-millions group (algorithm step 6: zero dropping) -->
-<div>&#x4e00;&#x5104; &#x4e8c;&#x5343;&#x4e09;&#x767e;&#x56db;&#x5341;&#x4e94;&#x4e07; &#x516d;&#x5343;&#x4e03;&#x767e;&#x516b;&#x5341;&#x4e5d;</div>
+<div>&#x4e00;&#x5104; &#x4e8c;&#x5343;&#x4e09;&#x767e;&#x56db;&#x5341;&#x4e94;&#x842c; &#x516d;&#x5343;&#x4e03;&#x767e;&#x516b;&#x5341;&#x4e5d;</div>
 <div>&#x4e00;&#x5104; &#x4e00;</div>
-<div>&#x4e00;&#x5104; &#x4e00;&#x4e07;</div>
-<div>&#x4e00;&#x5104; &#x5341;&#x4e07;</div>
-<div>&#x4e00;&#x5104; &#x767e;&#x4e07;</div>
-<div>&#x4e00;&#x5104; &#x4e00;&#x5343;&#x4e07;</div>
+<div>&#x4e00;&#x5104; &#x842c;</div>
+<div>&#x4e00;&#x5104; &#x5341;&#x842c;</div>
+<div>&#x4e00;&#x5104; &#x767e;&#x842c;</div>
+<div>&#x4e00;&#x5104; &#x5343;&#x842c;</div>
 
 <!-- Test fourth group marker (兆) - trillions group -->
 <div>&#x4e00;&#x5146;</div>
 <div>&#x4e8c;&#x5146;</div>
 <div>&#x4e94;&#x5146;</div>
-<div>&#x4e5d;&#x5146; &#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x5104; &#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x4e07; &#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;</div>
+<div>&#x4e5d;&#x5146; &#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x5104; &#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x842c; &#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;</div>
 
 <!-- Test extended ranges (algorithm step 3: group markers up to 10^16) -->
 <!-- Test 10^13 range (ten-trillions) -->
 <div>&#x5341;&#x5146;</div>
 <div>&#x4e94;&#x5341;&#x5146;</div>
-<div>&#x4e5d;&#x5341;&#x4e5d;&#x5146; &#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x5104; &#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x4e07; &#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;</div>
+<div>&#x4e5d;&#x5341;&#x4e5d;&#x5146; &#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x5104; &#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x842c; &#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;</div>
 
 <!-- Test 10^15 range (hundred-trillions) -->
 <div>&#x767e;&#x5146;</div>
 <div>&#x4e94;&#x767e;&#x5146;</div>
-<div>&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x5146; &#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x5104; &#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x4e07; &#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;</div>
+<div>&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x5146; &#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x5104; &#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x842c; &#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;</div>
 
 <!-- Test complex patterns in trillions group (step 5: drop ones, step 6: drop zeros) -->
-<div>&#x4e00;&#x5146; &#x4e8c;&#x5343;&#x4e09;&#x767e;&#x56db;&#x5341;&#x4e94;&#x5104; &#x516d;&#x5343;&#x4e03;&#x767e;&#x516b;&#x5341;&#x4e5d;&#x4e07; &#x767e;&#x4e8c;&#x5341;&#x4e09;</div>
+<div>&#x4e00;&#x5146; &#x4e8c;&#x5343;&#x4e09;&#x767e;&#x56db;&#x5341;&#x4e94;&#x5104; &#x516d;&#x5343;&#x4e03;&#x767e;&#x516b;&#x5341;&#x4e5d;&#x842c; &#x767e;&#x4e8c;&#x5341;&#x4e09;</div>
 <div>&#x4e00;&#x5146; &#x4e00;</div>
-<div>&#x4e00;&#x5146; &#x4e00;&#x4e07;</div>
-<div>&#x4e00;&#x5146; &#x767e;&#x4e07;</div>
-<div>&#x4e00;&#x5146; &#x4e00;&#x5343;&#x4e07;</div>
-<div>&#x4e00;&#x5146; &#x4e00;&#x5343;&#x5104;</div>
-<div>&#x4e00;&#x5146; &#x4e00;&#x5343;&#x4e00;&#x767e;&#x5104;</div>
+<div>&#x4e00;&#x5146; &#x842c;</div>
+<div>&#x4e00;&#x5146; &#x767e;&#x842c;</div>
+<div>&#x4e00;&#x5146; &#x4e00;&#x5104;</div>
+<div>&#x4e00;&#x5146; &#x767e;&#x5104;</div>
+<div>&#x4e00;&#x5146; &#x5343;&#x5104;</div>
 
 <!-- Test interaction between multiple groups -->
-<div>&#x4e00;&#x5146; &#x4e00;&#x5343;&#x4e00;&#x5104; &#x4e00;&#x5343;&#x4e00;&#x4e07; &#x4e00;&#x5343;&#x4e00;</div>
-<div>&#x4e00;&#x5146; &#x5341;&#x5104; &#x5341;&#x4e07; &#x5341;&#x4e00;</div>
-<div>&#x4e00;&#x5146; &#x767e;&#x5104; &#x5341;&#x4e07; &#x4e00;</div>
-<div>&#x4e94;&#x5146; &#x4e94;&#x5343;&#x4e94;&#x5104; &#x4e94;&#x767e;&#x4e94;&#x4e07; &#x4e94;&#x5343;&#x4e94;</div>
+<div>&#x4e00;&#x5146; &#x5341;&#x5104; &#x767E;&#x842C; &#x5343;&#x4e00;</div>
+<div>&#x4e00;&#x5146; &#x767E;&#x4e00;&#x5104; &#x767E;&#x4e00;&#x842c; &#x767E;&#x4e00;</div>
+<div>&#x4e00;&#x5146; &#x4e00;&#x5104; &#x842c; &#x4e00;</div>
+<div>&#x4e94;&#x5146; &#x4e94;&#x5341;&#x5104; &#x4e94;&#x767e;&#x842c; &#x4e94;&#x5343;&#x4e94;</div>
 
 <!-- Test zero dropping behavior across different groups -->
 <div>&#x4e00;&#x5146;</div>
 <div>&#x5341;&#x5104;</div>
-<div>&#x767e;&#x4e07;</div>
+<div>&#x767e;&#x842c;</div>
 <div>&#x5343;</div>
 <div>&#x5341;&#x5146;</div>
 <div>&#x767e;&#x5146;</div>
 
 <!-- Test boundary values at the edge of range (-10^16+1 to 10^16-1) -->
-<div>&#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x5146; &#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x5104; &#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x4e07; &#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;</div>
+<div>&#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x5146; &#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x5104; &#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x842c; &#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;</div>
 <div>&#x5343;&#x5146;</div>
 
 <!-- Test out-of-range values (should fallback to cjk-decimal) -->
 <div>&#x4e00;&#x3007;&#x3007;&#x3007;&#x3007;&#x3007;&#x3007;&#x3007;&#x3007;&#x3007;&#x3007;&#x3007;&#x3007;&#x3007;&#x3007;&#x3007;&#x3007;</div>
 
 <!-- Test negative numbers (algorithm step 8: negative sign handling) -->
-<div>&#xb9c8;&#xc774;&#xb108;&#xc2a4; &#xc77c;&#xb9cc;</div>
-<div>&#xb9c8;&#xc774;&#xb108;&#xc2a4; &#xc77c;&#xc5b5;</div>
-<div>&#xb9c8;&#xc774;&#xb108;&#xc2a4; &#xc77c;&#xc870;</div>
-<div>&#xb9c8;&#xc774;&#xb108;&#xc2a4; &#xad6c;&#xcc9c;&#xad6c;&#xbc31;&#xad6c;&#xc2ed;&#xad6c;&#xc870; &#xad6c;&#xcc9c;&#xad6c;&#xbc31;&#xad6c;&#xc2ed;&#xad6c;&#xc5b5; &#xad6c;&#xcc9c;&#xad6c;&#xbc31;&#xad6c;&#xc2ed;&#xad6c;&#xb9cc; &#xad6c;&#xcc9c;&#xad6c;&#xbc31;&#xad6c;&#xc2ed;&#xad6c;</div>
+<div>&#xb9c8;&#xc774;&#xb108;&#xc2a4; &#x842C;</div>
+<div>&#xb9c8;&#xc774;&#xb108;&#xc2a4; &#x4e00;&#x5104;</div>
+<div>&#xb9c8;&#xc774;&#xb108;&#xc2a4; &#x4e00;&#x5146;</div>
+<div>&#xb9c8;&#xc774;&#xb108;&#xc2a4; &#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x5146; &#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x5104; &#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x842c; &#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;</div>
 
-<div>&#xb9c8;&#xc774;&#xb108;&#xc2a4; &#xc77c;</div>
+<div>&#xb9c8;&#xc774;&#xb108;&#xc2a4; &#x4e00;</div>
diff --git a/tests/wpt/tests/css/css-counter-styles/simp-chinese-formal/counter-simp-chinese-formal-ref.html b/tests/wpt/tests/css/css-counter-styles/simp-chinese-formal/counter-simp-chinese-formal-ref.html
index 4a3b7f25568..f16ac78fe5c 100644
--- a/tests/wpt/tests/css/css-counter-styles/simp-chinese-formal/counter-simp-chinese-formal-ref.html
+++ b/tests/wpt/tests/css/css-counter-styles/simp-chinese-formal/counter-simp-chinese-formal-ref.html
@@ -29,7 +29,7 @@
 <!-- Test complex patterns within ten-thousands group (algorithm step 4: digit markers) -->
 <div>&#x58f9;&#x4e07;&#x8d30;&#x4edf;&#x53c1;&#x4f70;&#x8086;&#x62fe;&#x4f0d;</div>
 <div>&#x58f9;&#x4e07;&#x96f6;&#x58f9;</div>
-<div>&#x58f9;&#x4e07;&#x96f6;&#x62fe;</div>
+<div>&#x58f9;&#x4e07;&#x96f6;&#x58f9;&#x62fe;</div>
 <div>&#x58f9;&#x4e07;&#x96f6;&#x58f9;&#x4f70;</div>
 <div>&#x58f9;&#x4e07;&#x58f9;&#x4edf;</div>
 
@@ -43,7 +43,7 @@
 <div>&#x58f9;&#x4ebf;&#x8d30;&#x4edf;&#x53c1;&#x4f70;&#x8086;&#x62fe;&#x4f0d;&#x4e07;&#x9646;&#x4edf;&#x67d2;&#x4f70;&#x634c;&#x62fe;&#x7396;</div>
 <div>&#x58f9;&#x4ebf;&#x96f6;&#x58f9;</div>
 <div>&#x58f9;&#x4ebf;&#x96f6;&#x58f9;&#x4e07;</div>
-<div>&#x58f9;&#x4ebf;&#x96f6;&#x62fe;&#x4e07;</div>
+<div>&#x58f9;&#x4ebf;&#x96f6;&#x58f9;&#x62fe;&#x4e07;</div>
 <div>&#x58f9;&#x4ebf;&#x96f6;&#x58f9;&#x4f70;&#x4e07;</div>
 <div>&#x58f9;&#x4ebf;&#x58f9;&#x4edf;&#x4e07;</div>
 
@@ -51,40 +51,40 @@
 <div>&#x58f9;&#x4e07;&#x4ebf;</div>
 <div>&#x8d30;&#x4e07;&#x4ebf;</div>
 <div>&#x4f0d;&#x4e07;&#x4ebf;</div>
-<div>&#x7396;&#x4e07;&#x7396;&#x4edf;&#x7396;&#x4f70;&#x7396;&#x62fe;&#x7396;&#x4e07;&#x4ebf;&#x7396;&#x4edf;&#x7396;&#x4f70;&#x7396;&#x62fe;&#x7396;&#x4e07;&#x7396;&#x4edf;&#x7396;&#x4f70;&#x7396;&#x62fe;&#x7396;</div>
+<div>&#x7396;&#x4e07;&#x4ebf;&#x7396;&#x4edf;&#x7396;&#x4f70;&#x7396;&#x62fe;&#x7396;&#x4ebf;&#x7396;&#x4edf;&#x7396;&#x4f70;&#x7396;&#x62fe;&#x7396;&#x4e07;&#x7396;&#x4edf;&#x7396;&#x4f70;&#x7396;&#x62fe;&#x7396;</div>
 
 <!-- Test extended ranges (algorithm step 3: group markers up to 10^16) -->
 <!-- Test 10^13 range (ten-trillions) -->
-<div>&#x62fe;&#x4e07;&#x4ebf;</div>
+<div>&#x58f9;&#x62fe;&#x4e07;&#x4ebf;</div>
 <div>&#x4f0d;&#x62fe;&#x4e07;&#x4ebf;</div>
-<div>&#x7396;&#x62fe;&#x7396;&#x4e07;&#x7396;&#x4edf;&#x7396;&#x4f70;&#x7396;&#x62fe;&#x7396;&#x4e07;&#x4ebf;&#x7396;&#x4edf;&#x7396;&#x4f70;&#x7396;&#x62fe;&#x7396;&#x4e07;&#x7396;&#x4edf;&#x7396;&#x4f70;&#x7396;&#x62fe;&#x7396;</div>
+<div>&#x7396;&#x62fe;&#x7396;&#x4e07;&#x4ebf;&#x7396;&#x4edf;&#x7396;&#x4f70;&#x7396;&#x62fe;&#x7396;&#x4ebf;&#x7396;&#x4edf;&#x7396;&#x4f70;&#x7396;&#x62fe;&#x7396;&#x4e07;&#x7396;&#x4edf;&#x7396;&#x4f70;&#x7396;&#x62fe;&#x7396;</div>
 
 <!-- Test 10^15 range (hundred-trillions) -->
 <div>&#x58f9;&#x4f70;&#x4e07;&#x4ebf;</div>
 <div>&#x4f0d;&#x4f70;&#x4e07;&#x4ebf;</div>
-<div>&#x7396;&#x4f70;&#x7396;&#x62fe;&#x7396;&#x4e07;&#x7396;&#x4edf;&#x7396;&#x4f70;&#x7396;&#x62fe;&#x7396;&#x4e07;&#x4ebf;&#x7396;&#x4edf;&#x7396;&#x4f70;&#x7396;&#x62fe;&#x7396;&#x4e07;&#x7396;&#x4edf;&#x7396;&#x4f70;&#x7396;&#x62fe;&#x7396;</div>
+<div>&#x7396;&#x4f70;&#x7396;&#x62fe;&#x7396;&#x4e07;&#x4ebf;&#x7396;&#x4edf;&#x7396;&#x4f70;&#x7396;&#x62fe;&#x7396;&#x4ebf;&#x7396;&#x4edf;&#x7396;&#x4f70;&#x7396;&#x62fe;&#x7396;&#x4e07;&#x7396;&#x4edf;&#x7396;&#x4f70;&#x7396;&#x62fe;&#x7396;</div>
 
 <!-- Test complex patterns in trillions group (step 5: drop ones, step 6: drop zeros) -->
-<div>&#x58f9;&#x4e07;&#x8d30;&#x4edf;&#x53c1;&#x4f70;&#x8086;&#x62fe;&#x4f0d;&#x4e07;&#x4ebf;&#x9646;&#x4edf;&#x67d2;&#x4f70;&#x634c;&#x62fe;&#x7396;&#x4e07;&#x96f6;&#x58f9;&#x4f70;&#x8d30;&#x62fe;&#x53c1;</div>
+<div>&#x58f9;&#x4e07;&#x4ebf;&#x8d30;&#x4edf;&#x53c1;&#x4f70;&#x8086;&#x62fe;&#x4f0d;&#x4ebf;&#x9646;&#x4edf;&#x67d2;&#x4f70;&#x634c;&#x62fe;&#x7396;&#x4e07;&#x96f6;&#x58f9;&#x4f70;&#x8d30;&#x62fe;&#x53c1;</div>
 <div>&#x58f9;&#x4e07;&#x4ebf;&#x96f6;&#x58f9;</div>
 <div>&#x58f9;&#x4e07;&#x4ebf;&#x96f6;&#x58f9;&#x4e07;</div>
 <div>&#x58f9;&#x4e07;&#x4ebf;&#x96f6;&#x58f9;&#x4f70;&#x4e07;</div>
-<div>&#x58f9;&#x4e07;&#x4ebf;&#x96f6;&#x58f9;&#x4edf;&#x4e07;</div>
+<div>&#x58f9;&#x4e07;&#x4ebf;&#x96f6;&#x58f9;&#x4ebf;</div>
+<div>&#x58f9;&#x4e07;&#x4ebf;&#x96f6;&#x58f9;&#x4f70;&#x4ebf;</div>
 <div>&#x58f9;&#x4e07;&#x4ebf;&#x58f9;&#x4edf;&#x4ebf;</div>
-<div>&#x58f9;&#x4e07;&#x4ebf;&#x58f9;&#x4edf;&#x58f9;&#x4f70;&#x4ebf;</div>
 
 <!-- Test interaction between multiple groups -->
-<div>&#x58f9;&#x4e07;&#x96f6;&#x58f9;&#x4e07;&#x4ebf;&#x58f9;&#x4edf;&#x96f6;&#x58f9;&#x4e07;&#x58f9;&#x4edf;&#x96f6;&#x58f9;</div>
-<div>&#x58f9;&#x4e07;&#x96f6;&#x62fe;&#x4e07;&#x4ebf;&#x58f9;&#x4edf;&#x96f6;&#x62fe;&#x4e07;&#x58f9;&#x4edf;&#x96f6;&#x62fe;&#x58f9;</div>
-<div>&#x58f9;&#x4e07;&#x4ebf;&#x58f9;&#x4edf;&#x4ebf;&#x96f6;&#x62fe;&#x4e07;&#x96f6;&#x58f9;</div>
-<div>&#x4f0d;&#x4e07;&#x96f6;&#x4f0d;&#x4e07;&#x4ebf;&#x4f0d;&#x4edf;&#x96f6;&#x4f0d;&#x4e07;&#x4f0d;&#x4edf;&#x96f6;&#x4f0d;</div>
+<div>&#x58f9;&#x4e07;&#x4ebf;&#x96f6;&#x58f9;&#x62fe;&#x4ebf;&#x96f6;&#x58f9;&#x4f70;&#x4e07;&#x58f9;&#x4edf;&#x96f6;&#x58f9;</div>
+<div>&#x58f9;&#x4e07;&#x4ebf;&#x96f6;&#x58f9;&#x4f70;&#x96f6;&#x58f9;&#x4ebf;&#x96f6;&#x58f9;&#x4f70;&#x96f6;&#x58f9;&#x4e07;&#x96f6;&#x58f9;&#x4f70;&#x96f6;&#x58f9;</div>
+<div>&#x58f9;&#x4e07;&#x4ebf;&#x96f6;&#x58f9;&#x4ebf;&#x96f6;&#x58f9;&#x4e07;&#x96f6;&#x58f9;</div>
+<div>&#x4f0d;&#x4e07;&#x4ebf;&#x96f6;&#x4f0d;&#x62fe;&#x4ebf;&#x96f6;&#x4f0d;&#x4f70;&#x4e07;&#x4f0d;&#x4edf;&#x96f6;&#x4f0d;</div>
 
 <!-- Test zero dropping behavior across different groups -->
 <div>&#x58f9;&#x4e07;&#x4ebf;</div>
-<div>&#x62fe;&#x4ebf;</div>
+<div>&#x58f9;&#x62fe;&#x4ebf;</div>
 <div>&#x58f9;&#x4f70;&#x4e07;</div>
 <div>&#x58f9;&#x4edf;</div>
-<div>&#x62fe;&#x4e07;&#x4ebf;</div>
+<div>&#x58f9;&#x62fe;&#x4e07;&#x4ebf;</div>
 <div>&#x58f9;&#x4f70;&#x4e07;&#x4ebf;</div>
 
 <!-- Test boundary values at the edge of range (-10^16+1 to 10^16-1) -->
diff --git a/tests/wpt/tests/css/css-counter-styles/simp-chinese-informal/counter-simp-chinese-informal-ref.html b/tests/wpt/tests/css/css-counter-styles/simp-chinese-informal/counter-simp-chinese-informal-ref.html
index e2272c69923..c601eb41356 100644
--- a/tests/wpt/tests/css/css-counter-styles/simp-chinese-informal/counter-simp-chinese-informal-ref.html
+++ b/tests/wpt/tests/css/css-counter-styles/simp-chinese-informal/counter-simp-chinese-informal-ref.html
@@ -51,33 +51,33 @@
 <div>&#x4e00;&#x4e07;&#x4ebf;</div>
 <div>&#x4e8c;&#x4e07;&#x4ebf;</div>
 <div>&#x4e94;&#x4e07;&#x4ebf;</div>
-<div>&#x4e5d;&#x4e07;&#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x4e07;&#x4ebf;&#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x4e07;&#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;</div>
+<div>&#x4e5d;&#x4e07;&#x4ebf;&#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x4ebf;&#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x4e07;&#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;</div>
 
 <!-- Test extended ranges (algorithm step 3: group markers up to 10^16) -->
 <!-- Test 10^13 range (ten-trillions) -->
 <div>&#x5341;&#x4e07;&#x4ebf;</div>
 <div>&#x4e94;&#x5341;&#x4e07;&#x4ebf;</div>
-<div>&#x4e5d;&#x5341;&#x4e5d;&#x4e07;&#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x4e07;&#x4ebf;&#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x4e07;&#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;</div>
+<div>&#x4e5d;&#x5341;&#x4e5d;&#x4e07;&#x4ebf;&#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x4ebf;&#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x4e07;&#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;</div>
 
 <!-- Test 10^15 range (hundred-trillions) -->
 <div>&#x4e00;&#x767e;&#x4e07;&#x4ebf;</div>
 <div>&#x4e94;&#x767e;&#x4e07;&#x4ebf;</div>
-<div>&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x4e07;&#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x4e07;&#x4ebf;&#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x4e07;&#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;</div>
+<div>&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x4e07;&#x4ebf;&#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x4ebf;&#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;&#x4e07;&#x4e5d;&#x5343;&#x4e5d;&#x767e;&#x4e5d;&#x5341;&#x4e5d;</div>
 
 <!-- Test complex patterns in trillions group (step 5: drop ones, step 6: drop zeros) -->
-<div>&#x4e00;&#x4e07;&#x4e8c;&#x5343;&#x4e09;&#x767e;&#x56db;&#x5341;&#x4e94;&#x4e07;&#x4ebf;&#x516d;&#x5343;&#x4e03;&#x767e;&#x516b;&#x5341;&#x4e5d;&#x4e07;&#x96f6;&#x4e00;&#x767e;&#x4e8c;&#x5341;&#x4e09;</div>
+<div>&#x4e00;&#x4e07;&#x4ebf;&#x4e8c;&#x5343;&#x4e09;&#x767e;&#x56db;&#x5341;&#x4e94;&#x4ebf;&#x516d;&#x5343;&#x4e03;&#x767e;&#x516b;&#x5341;&#x4e5d;&#x4e07;&#x96f6;&#x4e00;&#x767e;&#x4e8c;&#x5341;&#x4e09;</div>
 <div>&#x4e00;&#x4e07;&#x4ebf;&#x96f6;&#x4e00;</div>
 <div>&#x4e00;&#x4e07;&#x4ebf;&#x96f6;&#x4e00;&#x4e07;</div>
 <div>&#x4e00;&#x4e07;&#x4ebf;&#x96f6;&#x4e00;&#x767e;&#x4e07;</div>
-<div>&#x4e00;&#x4e07;&#x4ebf;&#x96f6;&#x4e00;&#x5343;&#x4e07;</div>
+<div>&#x4e00;&#x4e07;&#x4ebf;&#x96f6;&#x4e00;&#x4ebf;</div>
+<div>&#x4e00;&#x4e07;&#x4ebf;&#x96f6;&#x4e00;&#x767e;&#x4ebf;</div>
 <div>&#x4e00;&#x4e07;&#x4ebf;&#x4e00;&#x5343;&#x4ebf;</div>
-<div>&#x4e00;&#x4e07;&#x4ebf;&#x4e00;&#x5343;&#x4e00;&#x767e;&#x4ebf;</div>
 
 <!-- Test interaction between multiple groups -->
-<div>&#x4e00;&#x4e07;&#x96f6;&#x4e00;&#x4e07;&#x4ebf;&#x4e00;&#x5343;&#x96f6;&#x4e00;&#x4e07;&#x4e00;&#x5343;&#x96f6;&#x4e00;</div>
-<div>&#x4e00;&#x4e07;&#x96f6;&#x5341;&#x4e07;&#x4ebf;&#x4e00;&#x5343;&#x96f6;&#x5341;&#x4e07;&#x4e00;&#x5343;&#x96f6;&#x5341;&#x4e00;</div>
-<div>&#x4e00;&#x4e07;&#x4ebf;&#x4e00;&#x5343;&#x4ebf;&#x96f6;&#x5341;&#x4e07;&#x96f6;&#x4e00;</div>
-<div>&#x4e94;&#x4e07;&#x96f6;&#x4e94;&#x4e07;&#x4ebf;&#x4e94;&#x5343;&#x96f6;&#x4e94;&#x4e07;&#x4e94;&#x5343;&#x96f6;&#x4e94;</div>
+<div>&#x4e00;&#x4e07;&#x4ebf;&#x96f6;&#x5341;&#x4ebf;&#x96f6;&#x4e00;&#x767e;&#x4e07;&#x4e00;&#x5343;&#x96f6;&#x4e00;</div>
+<div>&#x4e00;&#x4e07;&#x4ebf;&#x96f6;&#x4e00;&#x767e;&#x96f6;&#x4e00;&#x4ebf;&#x96f6;&#x4e00;&#x767e;&#x96f6;&#x4e00;&#x4e07;&#x96f6;&#x4e00;&#x767e;&#x96f6;&#x4e00;</div>
+<div>&#x4e00;&#x4e07;&#x4ebf;&#x96f6;&#x4e00;&#x4ebf;&#x96f6;&#x4e00;&#x4e07;&#x96f6;&#x4e00;</div>
+<div>&#x4e94;&#x4e07;&#x4ebf;&#x96f6;&#x4e94;&#x5341;&#x4ebf;&#x96f6;&#x4e94;&#x767e;&#x4e07;&#x4e94;&#x5343;&#x96f6;&#x4e94;</div>
 
 <!-- Test zero dropping behavior across different groups -->
 <div>&#x4e00;&#x4e07;&#x4ebf;</div>
diff --git a/tests/wpt/tests/css/css-counter-styles/trad-chinese-formal/counter-trad-chinese-formal-ref.html b/tests/wpt/tests/css/css-counter-styles/trad-chinese-formal/counter-trad-chinese-formal-ref.html
index d903809f6a0..b39f1cadb6f 100644
--- a/tests/wpt/tests/css/css-counter-styles/trad-chinese-formal/counter-trad-chinese-formal-ref.html
+++ b/tests/wpt/tests/css/css-counter-styles/trad-chinese-formal/counter-trad-chinese-formal-ref.html
@@ -29,7 +29,7 @@
 <!-- Test complex patterns within ten-thousands group (algorithm step 4: digit markers) -->
 <div>&#x58f9;&#x842c;&#x8cb3;&#x4edf;&#x53c3;&#x4f70;&#x8086;&#x62fe;&#x4f0d;</div>
 <div>&#x58f9;&#x842c;&#x96f6;&#x58f9;</div>
-<div>&#x58f9;&#x842c;&#x96f6;&#x62fe;</div>
+<div>&#x58f9;&#x842c;&#x96f6;&#x58f9;&#x62fe;</div>
 <div>&#x58f9;&#x842c;&#x96f6;&#x58f9;&#x4f70;</div>
 <div>&#x58f9;&#x842c;&#x58f9;&#x4edf;</div>
 
@@ -43,7 +43,7 @@
 <div>&#x58f9;&#x5104;&#x8cb3;&#x4edf;&#x53c3;&#x4f70;&#x8086;&#x62fe;&#x4f0d;&#x842c;&#x9678;&#x4edf;&#x67d2;&#x4f70;&#x634c;&#x62fe;&#x7396;</div>
 <div>&#x58f9;&#x5104;&#x96f6;&#x58f9;</div>
 <div>&#x58f9;&#x5104;&#x96f6;&#x58f9;&#x842c;</div>
-<div>&#x58f9;&#x5104;&#x96f6;&#x62fe;&#x842c;</div>
+<div>&#x58f9;&#x5104;&#x96f6;&#x58f9;&#x62fe;&#x842c;</div>
 <div>&#x58f9;&#x5104;&#x96f6;&#x58f9;&#x4f70;&#x842c;</div>
 <div>&#x58f9;&#x5104;&#x58f9;&#x4edf;&#x842c;</div>
 
@@ -55,7 +55,7 @@
 
 <!-- Test extended ranges (algorithm step 3: group markers up to 10^16) -->
 <!-- Test 10^13 range (ten-trillions) -->
-<div>&#x62fe;&#x5146;</div>
+<div>&#x58f9;&#x62fe;&#x5146;</div>
 <div>&#x4f0d;&#x62fe;&#x5146;</div>
 <div>&#x7396;&#x62fe;&#x7396;&#x5146;&#x7396;&#x4edf;&#x7396;&#x4f70;&#x7396;&#x62fe;&#x7396;&#x5104;&#x7396;&#x4edf;&#x7396;&#x4f70;&#x7396;&#x62fe;&#x7396;&#x842c;&#x7396;&#x4edf;&#x7396;&#x4f70;&#x7396;&#x62fe;&#x7396;</div>
 
@@ -69,22 +69,22 @@
 <div>&#x58f9;&#x5146;&#x96f6;&#x58f9;</div>
 <div>&#x58f9;&#x5146;&#x96f6;&#x58f9;&#x842c;</div>
 <div>&#x58f9;&#x5146;&#x96f6;&#x58f9;&#x4f70;&#x842c;</div>
-<div>&#x58f9;&#x5146;&#x96f6;&#x58f9;&#x4edf;&#x842c;</div>
+<div>&#x58f9;&#x5146;&#x96f6;&#x58f9;&#x5104;</div>
+<div>&#x58f9;&#x5146;&#x96f6;&#x58f9;&#x4f70;&#x5104;</div>
 <div>&#x58f9;&#x5146;&#x58f9;&#x4edf;&#x5104;</div>
-<div>&#x58f9;&#x5146;&#x58f9;&#x4edf;&#x58f9;&#x4f70;&#x5104;</div>
 
 <!-- Test interaction between multiple groups -->
-<div>&#x58f9;&#x5146;&#x96f6;&#x58f9;&#x5104;&#x58f9;&#x4edf;&#x96f6;&#x58f9;&#x842c;&#x58f9;&#x4edf;&#x96f6;&#x58f9;</div>
-<div>&#x58f9;&#x5146;&#x96f6;&#x62fe;&#x5104;&#x58f9;&#x4edf;&#x96f6;&#x62fe;&#x842c;&#x58f9;&#x4edf;&#x96f6;&#x62fe;&#x58f9;</div>
-<div>&#x58f9;&#x5146;&#x58f9;&#x4edf;&#x5104;&#x96f6;&#x62fe;&#x842c;&#x96f6;&#x58f9;</div>
-<div>&#x4f0d;&#x5146;&#x96f6;&#x4f0d;&#x5104;&#x4f0d;&#x4edf;&#x96f6;&#x4f0d;&#x842c;&#x4f0d;&#x4edf;&#x96f6;&#x4f0d;</div>
+<div>&#x58f9;&#x5146;&#x96f6;&#x58f9;&#x62fe;&#x5104;&#x96f6;&#x58f9;&#x4f70;&#x842c;&#x58f9;&#x4edf;&#x96f6;&#x58f9;</div>
+<div>&#x58f9;&#x5146;&#x96f6;&#x58f9;&#x4f70;&#x96f6;&#x58f9;&#x5104;&#x96f6;&#x58f9;&#x4f70;&#x96f6;&#x58f9;&#x842c;&#x96f6;&#x58f9;&#x4f70;&#x96f6;&#x58f9;</div>
+<div>&#x58f9;&#x5146;&#x96f6;&#x58f9;&#x5104;&#x96f6;&#x58f9;&#x842c;&#x96f6;&#x58f9;</div>
+<div>&#x4f0d;&#x5146;&#x96f6;&#x4f0d;&#x62fe;&#x5104;&#x96f6;&#x4f0d;&#x4f70;&#x842c;&#x4f0d;&#x4edf;&#x96f6;&#x4f0d;</div>
 
 <!-- Test zero dropping behavior across different groups -->
 <div>&#x58f9;&#x5146;</div>
-<div>&#x62fe;&#x5104;</div>
+<div>&#x58f9;&#x62fe;&#x5104;</div>
 <div>&#x58f9;&#x4f70;&#x842c;</div>
 <div>&#x58f9;&#x4edf;</div>
-<div>&#x62fe;&#x5146;</div>
+<div>&#x58f9;&#x62fe;&#x5146;</div>
 <div>&#x58f9;&#x4f70;&#x5146;</div>
 
 <!-- Test boundary values at the edge of range (-10^16+1 to 10^16-1) -->
diff --git a/tests/wpt/tests/css/css-counter-styles/trad-chinese-informal/counter-trad-chinese-informal-ref.html b/tests/wpt/tests/css/css-counter-styles/trad-chinese-informal/counter-trad-chinese-informal-ref.html
index e8f11fcd6d8..7ddeb5a1662 100644
--- a/tests/wpt/tests/css/css-counter-styles/trad-chinese-informal/counter-trad-chinese-informal-ref.html
+++ b/tests/wpt/tests/css/css-counter-styles/trad-chinese-informal/counter-trad-chinese-informal-ref.html
@@ -69,15 +69,15 @@
 <div>&#x4e00;&#x5146;&#x96f6;&#x4e00;</div>
 <div>&#x4e00;&#x5146;&#x96f6;&#x4e00;&#x842c;</div>
 <div>&#x4e00;&#x5146;&#x96f6;&#x4e00;&#x767e;&#x842c;</div>
-<div>&#x4e00;&#x5146;&#x96f6;&#x4e00;&#x5343;&#x842c;</div>
+<div>&#x4e00;&#x5146;&#x96f6;&#x4e00;&#x5104;</div>
+<div>&#x4e00;&#x5146;&#x96f6;&#x4e00;&#x767e;&#x5104;</div>
 <div>&#x4e00;&#x5146;&#x4e00;&#x5343;&#x5104;</div>
-<div>&#x4e00;&#x5146;&#x4e00;&#x5343;&#x4e00;&#x767e;&#x5104;</div>
 
 <!-- Test interaction between multiple groups -->
-<div>&#x4e00;&#x5146;&#x96f6;&#x4e00;&#x5104;&#x4e00;&#x5343;&#x96f6;&#x4e00;&#x842c;&#x4e00;&#x5343;&#x96f6;&#x4e00;</div>
-<div>&#x4e00;&#x5146;&#x96f6;&#x5341;&#x5104;&#x4e00;&#x5343;&#x96f6;&#x5341;&#x842c;&#x4e00;&#x5343;&#x96f6;&#x5341;&#x4e00;</div>
-<div>&#x4e00;&#x5146;&#x4e00;&#x5343;&#x5104;&#x96f6;&#x5341;&#x842c;&#x96f6;&#x4e00;</div>
-<div>&#x4e94;&#x5146;&#x96f6;&#x4e94;&#x5104;&#x4e94;&#x5343;&#x96f6;&#x4e94;&#x842c;&#x4e94;&#x5343;&#x96f6;&#x4e94;</div>
+<div>&#x4e00;&#x5146;&#x96f6;&#x5341;&#x5104;&#x96f6;&#x4e00;&#x767e;&#x842c;&#x4e00;&#x5343;&#x96f6;&#x4e00;</div>
+<div>&#x4e00;&#x5146;&#x96f6;&#x4e00;&#x767e;&#x96f6;&#x4e00;&#x5104;&#x96f6;&#x4e00;&#x767e;&#x96f6;&#x4e00;&#x842c;&#x96f6;&#x4e00;&#x767e;&#x96f6;&#x4e00;</div>
+<div>&#x4e00;&#x5146;&#x96f6;&#x4e00;&#x5104;&#x96f6;&#x4e00;&#x842c;&#x96f6;&#x4e00;</div>
+<div>&#x4e94;&#x5146;&#x96f6;&#x4e94;&#x5341;&#x5104;&#x96f6;&#x4e94;&#x767e;&#x842c;&#x4e94;&#x5343;&#x96f6;&#x4e94;</div>
 
 <!-- Test zero dropping behavior across different groups -->
 <div>&#x4e00;&#x5146;</div>
diff --git a/tests/wpt/tests/css/css-env/env-revert-rule.tentative.html b/tests/wpt/tests/css/css-env/env-revert-rule.tentative.html
new file mode 100644
index 00000000000..96eacbd9750
--- /dev/null
+++ b/tests/wpt/tests/css/css-env/env-revert-rule.tentative.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<title>The revert-rule keyword: interaction with env()</title>
+<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/10443">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+
+<style>
+  #test1 {
+    color: green;
+  }
+  #test1 {
+    color: red;
+    color: env(unknown-env, revert-rule);
+  }
+</style>
+<div id=test1></div>
+<script>
+  test(() => {
+    assert_true(CSS.supports('color:revert-rule'));
+    assert_equals(getComputedStyle(test1).color, 'rgb(0, 128, 0)')
+  }, 'The revert-rule works in an env() fallback');
+</script>
diff --git a/tests/wpt/tests/css/css-gaps/grid/grid-gap-decorations-003-ref.html b/tests/wpt/tests/css/css-gaps/grid/grid-gap-decorations-003-ref.html
index 15fc305633d..050da884eda 100644
--- a/tests/wpt/tests/css/css-gaps/grid/grid-gap-decorations-003-ref.html
+++ b/tests/wpt/tests/css/css-gaps/grid/grid-gap-decorations-003-ref.html
@@ -7,17 +7,17 @@
   }
 
   .container {
-    width: 110px;
     height: 110px;
-    column-count: 2;
+    width: 110px;
+
+    display: grid;
+    grid-template-columns: repeat(2, 1fr);
+
     column-gap: 10px;
-    column-rule-color: pink;
-    column-rule-style: dotted;
-    column-rule-width: 10px;
-    overflow: hidden;
-    position: relative;
+    row-gap: 10px;
   }
 
+
   .item {
     background: skyblue;
     height: 50px;
@@ -25,10 +25,19 @@
     margin: 0;
   }
 
-  /* For 2x2 grid-like layout, add a 10px bottom margin to
-    odd children(#1 & #3) to simulate a horizontal row gap.*/
-  .item:nth-child(odd) {
-    margin-bottom: 10px;
+  .col-rule {
+    margin: 0px;
+    padding: 0px;
+    width: 0px;
+
+
+    height: 110px;
+    border-right: 10px dotted;
+    border-color: pink;
+    position: absolute;
+    left: 50px;
+    top: 0px;
+
   }
 
   .row-rule {
@@ -42,7 +51,6 @@
     position: absolute;
     top: 50px;
   }
-
 </style>
 <div class="container">
   <div class="item"></div>
@@ -50,5 +58,5 @@
   <div class="item"></div>
   <div class="item"></div>
 </div>
-<div class="row-rule">
-</div>
\ No newline at end of file
+<div class="col-rule"></div>
+<div class="row-rule"></div>
diff --git a/tests/wpt/tests/css/css-gaps/grid/grid-gap-decorations-004-ref.html b/tests/wpt/tests/css/css-gaps/grid/grid-gap-decorations-004-ref.html
index e4e6b8b458f..5d51b09c81c 100644
--- a/tests/wpt/tests/css/css-gaps/grid/grid-gap-decorations-004-ref.html
+++ b/tests/wpt/tests/css/css-gaps/grid/grid-gap-decorations-004-ref.html
@@ -6,51 +6,54 @@
     margin: 0px;
   }
 
-  .container {
-    width: 108px;
+  .grid-container {
     height: 108px;
-    background: green;
-
-    column-count: 2;
+    width: 108px;
+    display: grid;
+    grid-template-columns: repeat(2, 1fr);
     column-gap: 12px;
+    row-gap: 12px;
+    background-color: green;
 
-    column-rule-color: pink;
-    column-rule-style: double;
-    column-rule-width: 12px;
-
-    overflow: hidden;
   }
 
-  .item {
+  .grid-item {
     background: skyblue;
-    height: 48px;
-    width: 100%;
-    margin: 0;
   }
 
-  /* For 2x2 grid-like layout, add a 10px bottom margin to
-    odd children(#1 & #3) to simulate a horizontal row gap.*/
-  .item:nth-child(odd) {
-    margin-bottom: 12px;
-  }
-
-  .row-gap {
+  .col-rule {
     margin: 0px;
     padding: 0px;
-    height: 4px;
-    background: pink;
-    width: 108px;
+    width: 0px;
+
+
+    height: 108px;
+    border-right: 12px double;
+    border-color: pink;
     position: absolute;
+    left: 48px;
+    top: 0px;
+
   }
 
+  .row-rule {
+    margin: 0px;
+    padding: 0px;
+    height: 0px;
+
+    width: 108px;
+    border-bottom: 12px double;
+    border-color: pink;
+    position: absolute;
+    top: 48px;
+  }
 </style>
-<div class="container">
-  <div class="item"></div>
-  <div class="item"></div>
-  <div class="item"></div>
-  <div class="item"></div>
+<div class="grid-container">
+  <div class="grid-item"></div>
+  <div class="grid-item"></div>
+  <div class="grid-item"></div>
+  <div class="grid-item"></div>
 </div>
 
-<!-- Two horizontal bars to simulate row gaps with style double -->
-<div id="horizontal1" class="row-gap" style="top: 48px;"></div>
-<div id="horizontal2" class="row-gap" style="top: 56px;"></div>
\ No newline at end of file
+<div class="row-rule"> </div>
+<div class="col-rule"> </div>
diff --git a/tests/wpt/tests/css/css-gaps/grid/grid-gap-decorations-005-ref.html b/tests/wpt/tests/css/css-gaps/grid/grid-gap-decorations-005-ref.html
index aebfba5a20e..edca2b1a90b 100644
--- a/tests/wpt/tests/css/css-gaps/grid/grid-gap-decorations-005-ref.html
+++ b/tests/wpt/tests/css/css-gaps/grid/grid-gap-decorations-005-ref.html
@@ -1,3 +1,4 @@
+
 <!DOCTYPE html>
 <link rel="help" href="https://drafts.csswg.org/css-gaps-1/">
 <link rel="author" title="Sam Davis Omekara Jr." href="mailto:samomekarajr@microsoft.com">
@@ -5,58 +6,48 @@
   body {
     margin: 0px;
   }
-
   .container {
-    width: 110px;
     height: 110px;
-    background: green;
-
-    column-count: 2;
+    width: 110px;
+    display: grid;
+    grid-template-columns: repeat(2, 1fr);
     column-gap: 10px;
-
-    column-rule-color: pink;
-    column-rule-style: double;
-    column-rule-width: 5px;
-
-    overflow: hidden;
+    row-gap: 10px;
+    background: green;
   }
-
   .item {
     background: skyblue;
     height: 50px;
     width: 100%;
     margin: 0;
   }
-
-  .double {
+  .col-rule {
+    margin: 0px;
+    padding: 0px;
+    width: 0px;
+    height: 110px;
+    border-right: 5px double;
+    border-color: pink;
+    position: absolute;
+    left: 52.5px;
+    top: 0px;
+  }
+  .row-rule {
     margin: 0px;
     padding: 0px;
     height: 0px;
-
     width: 110px;
     border-bottom: 5px double;
     border-color: pink;
     position: absolute;
-    /*
-      The top position of the double border is set to 52.5px
-      to account for 10px gap and 5px height of the double border,
-      in order to center it in the gap.
-    */
     top: 52.5px;
   }
-
-  /* For 2x2 grid-like layout, add a 10px bottom margin to
-    odd children(#1 & #3) to simulate a horizontal row gap.*/
-  .item:nth-child(odd) {
-    margin-bottom: 10px;
-  }
 </style>
 <div class="container">
-    <div class="item"></div>
-    <div class="item"></div>
-    <div class="item"></div>
-    <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
 </div>
-
-<div class="double">
-</div>
\ No newline at end of file
+<div class="col-rule"></div>
+<div class="row-rule"></div>
diff --git a/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/column-masonry-alignment-ref.html b/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/column-masonry-alignment-ref.html
new file mode 100644
index 00000000000..2565ced24f2
--- /dev/null
+++ b/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/column-masonry-alignment-ref.html
@@ -0,0 +1,144 @@
+<!DOCTYPE html>
+<html>
+<head>
+    <meta charset="utf-8">
+    <style>
+      html,body {
+          color:black;
+          background-color:white;
+          font:15px/1 monospace;
+      }
+
+      .container {
+          width: 850px;
+          height: 800px;
+          border: 2px solid black;
+          margin: 20px;
+      }
+
+      .grid {
+          display: grid;
+          grid-template-columns: repeat(5, 150px);
+          grid-auto-rows: auto;
+          position: relative;
+          padding: 20px;
+          gap: 15px;
+          border: 1px dashed #999;
+          height: 700px;
+      }
+
+      .item {
+          background: lightblue;
+          padding: 10px;
+          border: 1px solid blue;
+          height: 80px;
+      }
+
+      .abspos {
+          position: absolute;
+          width: 60px;
+          height: 40px;
+          border: 2px solid black;
+          font-size: 10px;
+          display: flex;
+          align-items: center;
+          justify-content: center;
+          text-align: center;
+      }
+
+      .align-self {
+          grid-column: 2 / 3;
+          grid-row: 1 / 2;
+      }
+
+      .align-start {
+          align-self: start;
+          background: lightcoral;
+      }
+
+      .align-end {
+          align-self: end;
+          background: lightgreen;
+      }
+
+      .align-center {
+          align-self: center;
+          background: lightblue;
+      }
+
+      .justify-self {
+          grid-column: 4 / 5;
+          grid-row: 1 / 2;
+      }
+
+      .justify-start {
+          justify-self: start;
+          background: gold;
+      }
+
+      .justify-end {
+          justify-self: end;
+          background: silver;
+      }
+
+      .justify-center {
+          justify-self: center;
+          background: tan;
+      }
+
+      .combo-center-center {
+          grid-column: 3 / 4;
+          grid-row: 1 / 2;
+          align-self: center;
+          justify-self: center;
+          background: hotpink;
+      }
+
+      .safe-align {
+          position: absolute;
+          background: orange;
+          border: 1px solid darkorange;
+          grid-column: 1 / 2;
+          grid-row: 1 / 2;
+          width: 170px;
+          height: 30px;
+          justify-self: safe end;
+          align-self: center;
+          font-size: 10px;
+      }
+
+    .unsafe-align {
+          position: absolute;
+          background: purple;
+          border: 1px solid darkmagenta;
+          grid-column: 5 / 6;
+          grid-row: 1 / 2;
+          width: 170px;
+          height: 30px;
+          justify-self: unsafe end;
+          align-self: center;
+          font-size: 10px;
+      }
+    </style>
+</head>
+<body>
+<div class="container">
+  <div class="grid">
+    <div class="item">Item 1</div>
+    <div class="item">Item 2</div>
+    <div class="item">Item 3</div>
+    <div class="abspos align-self align-start">align-self: start</div>
+    <div class="abspos align-self align-end">align-self: end</div>
+    <div class="abspos align-self align-center">align-self: center</div>
+    <div class="item">Item 4</div>
+    <div class="item">Item 5</div>
+    <div class="abspos justify-self justify-start">justify-self: start</div>
+    <div class="abspos justify-self justify-end">justify-self: end</div>
+    <div class="abspos justify-self justify-center">justify-self: center</div>
+    <div class="abspos combo-center-center">center + center</div>
+    <div class="safe-align">justify-self: safe end</div>
+    <div class="unsafe-align">justify-self: unsafe end</div>
+  </div>
+</div>
+</body>
+</html>
diff --git a/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/column-masonry-alignment.html b/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/column-masonry-alignment.html
new file mode 100644
index 00000000000..1baa113856c
--- /dev/null
+++ b/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/column-masonry-alignment.html
@@ -0,0 +1,142 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>CSS Masonry Test: Masonry layout alignment properties for absolutely positioned elements</title>
+  <link rel="author" title="Yanling Wang" href="mailto:yanlingwang@microsoft.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid-3/#abspos">
+  <link rel="match" href="column-masonry-alignment-ref.html">
+  <style>
+    html,body {
+        color:black;
+        background-color:white;
+        font:15px/1 monospace;
+    }
+
+    .container {
+        width: 850px;
+        height: 800px;
+        border: 2px solid black;
+        margin: 20px;
+    }
+
+    .masonry {
+        display: masonry;
+        grid-template-columns: repeat(5, 150px);
+        position: relative;
+        padding: 20px;
+        gap: 15px;
+        border: 1px dashed #999;
+        height: 700px;
+    }
+
+    .item {
+        background: lightblue;
+        padding: 10px;
+        border: 1px solid blue;
+        height: 80px;
+    }
+
+    .abspos {
+        position: absolute;
+        width: 60px;
+        height: 40px;
+        border: 2px solid black;
+        font-size: 10px;
+        display: flex;
+        align-items: center;
+        justify-content: center;
+        text-align: center;
+    }
+
+    .align-self {
+        grid-column: 2 / 3;
+    }
+
+    .align-start {
+        align-self: start;
+        background: lightcoral;
+    }
+
+    .align-end {
+        align-self: end;
+        background: lightgreen;
+    }
+
+    .align-center {
+        align-self: center;
+        background: lightblue;
+    }
+
+    .justify-self {
+        grid-column: 4 / 5;
+    }
+
+    .justify-start {
+        justify-self: start;
+        background: gold;
+    }
+
+    .justify-end {
+        justify-self: end;
+        background: silver;
+    }
+
+    .justify-center {
+        justify-self: center;
+        background: tan;
+    }
+
+    .combo-center-center {
+        grid-column: 3 / 4;
+        align-self: center;
+        justify-self: center;
+        background: hotpink;
+    }
+
+    .safe-align {
+        position: absolute;
+        background: orange;
+        border: 1px solid darkorange;
+        grid-column: 1 / 2;
+        width: 170px;
+        height: 30px;
+        justify-self: safe end;
+        align-self: center;
+        font-size: 10px;
+    }
+
+    .unsafe-align {
+        position: absolute;
+        background: purple;
+        border: 1px solid darkmagenta;
+        grid-column: 5 / 6;
+        width: 170px;
+        height: 30px;
+        justify-self: unsafe end;
+        align-self: center;
+        font-size: 10px;
+    }
+  </style>
+</head>
+<body>
+<div class="container">
+  <div class="masonry">
+    <div class="item">Item 1</div>
+    <div class="item">Item 2</div>
+    <div class="item">Item 3</div>
+    <div class="abspos align-self align-start">align-self: start</div>
+    <div class="abspos align-self align-end">align-self: end</div>
+    <div class="abspos align-self align-center">align-self: center</div>
+    <div class="item">Item 4</div>
+    <div class="item">Item 5</div>
+    <div class="abspos justify-self justify-start">justify-self: start</div>
+    <div class="abspos justify-self justify-end">justify-self: end</div>
+    <div class="abspos justify-self justify-center">justify-self: center</div>
+    <div class="abspos combo-center-center">center + center</div>
+    <div class="safe-align">justify-self: safe end</div>
+    <div class="unsafe-align">justify-self: unsafe end</div>
+  </div>
+</div>
+</body>
+</html>
diff --git a/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/column-masonry-intrinsic-sizing-oof-ref.html b/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/column-masonry-intrinsic-sizing-oof-ref.html
new file mode 100644
index 00000000000..db9300ad9b4
--- /dev/null
+++ b/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/column-masonry-intrinsic-sizing-oof-ref.html
@@ -0,0 +1,51 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="utf-8">
+  <style>
+    .container {
+        border: 2px solid black;
+        margin: 10px;
+        width: 300px;
+        position: relative;
+    }
+
+    .grid {
+        display: grid;
+        grid-template-columns: repeat(3, auto);
+        grid-template-rows: auto;
+        border: 2px solid blue;
+    }
+
+    .oof-item {
+        position: absolute;
+        background: red;
+        color: white;
+        padding: 5px;
+        border: 1px solid darkred;
+    }
+
+    .oof-1 {
+        top: 50px;
+        left: 50px;
+        width: 60px;
+        height: 40px;
+    }
+
+    .oof-2 {
+        top: 100px;
+        left: 150px;
+        width: 70px;
+        height: 50px;
+    }
+  </style>
+</head>
+<body>
+<div class="container">
+  <div class="grid">
+    <div class="oof-item oof-1"></div>
+    <div class="oof-item oof-2"></div>
+  </div>
+</div>
+</body>
+</html>
diff --git a/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/column-masonry-intrinsic-sizing-oof.html b/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/column-masonry-intrinsic-sizing-oof.html
new file mode 100644
index 00000000000..b0be4bff0ae
--- /dev/null
+++ b/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/column-masonry-intrinsic-sizing-oof.html
@@ -0,0 +1,55 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>CSS Masonry Test: Masonry layout intrinsic size with only OOF children</title>
+  <link rel="author" title="Yanling Wang" href="mailto:yanlingwang@microsoft.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid-3/#track-sizing">
+  <link rel="help" href="https://drafts.csswg.org/css-grid-3/#abspos">
+  <link rel="match" href="column-masonry-intrinsic-sizing-oof-ref.html">
+  <style>
+    .container {
+        border: 2px solid black;
+        margin: 10px;
+        width: 300px;
+        position: relative;
+    }
+
+    .masonry {
+        display: masonry;
+        grid-template-columns: repeat(3, auto);
+        border: 2px solid blue;
+    }
+
+    .oof-item {
+        position: absolute;
+        background: red;
+        color: white;
+        padding: 5px;
+        border: 1px solid darkred;
+    }
+
+    .oof-1 {
+        top: 50px;
+        left: 50px;
+        width: 60px;
+        height: 40px;
+    }
+
+    .oof-2 {
+        top: 100px;
+        left: 150px;
+        width: 70px;
+        height: 50px;
+    }
+  </style>
+</head>
+<body>
+<div class="container">
+  <div class="masonry">
+    <div class="oof-item oof-1"></div>
+    <div class="oof-item oof-2"></div>
+  </div>
+</div>
+</body>
+</html>
diff --git a/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/column-masonry-out-of-flow-001-ref.html b/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/column-masonry-out-of-flow-001-ref.html
new file mode 100644
index 00000000000..9bf28dea91d
--- /dev/null
+++ b/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/column-masonry-out-of-flow-001-ref.html
@@ -0,0 +1,87 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="utf-8">
+  <style>
+    .container {
+        width: 900px;
+        height: 900px;
+        border: 2px solid black;
+        margin: 20px;
+    }
+
+    .grid {
+        display: grid;
+        grid-template-columns: repeat(4, 10rem);
+        grid-template-rows: 800px;
+        justify-content: center;
+        position: relative;
+        height: 800px;
+        width: 40rem;
+        padding: 20px;
+        gap: 10px;
+        border: 1px dashed #999;
+    }
+
+    .abspos-first {
+        grid-row: 1 / 2;
+        grid-column: span 2;
+        position: absolute;
+        top: 70px;
+        bottom: 440px;
+        left: 80px;
+        right: 30px;
+        background: blue;
+    }
+
+    .abspos-second {
+        grid-row: 1 / 2;
+        grid-column: 4 / 5;
+        position: absolute;
+        top: 10px;
+        left: 10px;
+        background: red;
+    }
+
+    .abspos-third {
+        grid-row: 1 / 2;
+        grid-column: 4 / 5;
+        position: absolute;
+        width: 50px;
+        height: 60px;
+        background: yellow;
+        align-self: end;
+    }
+
+    .fixedpos {
+        position: fixed;
+        top: 50%;
+        right: 0;
+        background: green;
+        width: 60px;
+        height: 60px;
+    }
+
+    .static-span-two {
+        position: absolute;
+        width: 120px;
+        height: 30px;
+        background: lightcoral;
+        border: 2px solid red;
+        grid-column: span 2;
+        grid-row: 1 / 2;
+    }
+  </style>
+</head>
+<body>
+<div class="container">
+  <div class="grid">
+    <div class="abspos-first"></div>
+    <div class="abspos-second"></div>
+    <div class="abspos-third"></div>
+    <div class="fixedpos"></div>
+    <div class="static-span-two"></div>
+  </div>
+</div>
+</body>
+</html>
diff --git a/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/column-masonry-out-of-flow-001.html b/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/column-masonry-out-of-flow-001.html
new file mode 100644
index 00000000000..3eb9b27937f
--- /dev/null
+++ b/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/column-masonry-out-of-flow-001.html
@@ -0,0 +1,86 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>CSS Masonry Test: Masonry layout out-of-flow positioning</title>
+  <link rel="author" title="Yanling Wang" href="mailto:yanlingwang@microsoft.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid-3/#abspos">
+  <link rel="match" href="column-masonry-out-of-flow-001-ref.html">
+  <style>
+    .container {
+        width: 900px;
+        height: 900px;
+        border: 2px solid black;
+        margin: 20px;
+    }
+
+    .masonry {
+        display: masonry;
+        grid-template-columns: repeat(4, 10rem);
+        justify-content: center;
+        position: relative;
+        height: 800px;
+        width: 40rem;
+        padding: 20px;
+        gap: 10px;
+        border: 1px dashed #999;
+    }
+
+    .abspos-first {
+        grid-column: span 2;
+        position: absolute;
+        top: 70px;
+        bottom: 440px;
+        left: 80px;
+        right: 30px;
+        background: blue;
+    }
+
+    .abspos-second {
+        grid-column: 4 / 5;
+        position: absolute;
+        top: 10px;
+        left: 10px;
+        background: red;
+    }
+
+    .abspos-third {
+        grid-column: 4 / 5;
+        position: absolute;
+        width: 50px;
+        height: 60px;
+        background: yellow;
+        align-self: end;
+    }
+
+    .fixedpos {
+        position: fixed;
+        top: 50%;
+        right: 0;
+        background: green;
+        width: 60px;
+        height: 60px;
+    }
+
+    .static-span-two {
+        position: absolute;
+        width: 120px;
+        height: 30px;
+        background: lightcoral;
+        border: 2px solid red;
+        grid-column: span 2;
+    }
+  </style>
+</head>
+<body>
+<div class="container">
+  <div class="masonry">
+    <div class="abspos-first"></div>
+    <div class="abspos-second"></div>
+    <div class="abspos-third"></div>
+    <div class="fixedpos"></div>
+    <div class="static-span-two"></div>
+  </div>
+</div>
+</body>
+</html>
diff --git a/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/column-masonry-out-of-flow-002-ref.html b/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/column-masonry-out-of-flow-002-ref.html
new file mode 100644
index 00000000000..498c307e060
--- /dev/null
+++ b/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/column-masonry-out-of-flow-002-ref.html
@@ -0,0 +1,83 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="utf-8">
+  <style>
+    .container {
+        width: 300px;
+        height: 150px;
+        border: 2px solid black;
+        margin: 20px;
+    }
+
+    .grid {
+        display: grid;
+        grid-template-columns: repeat(4, 60px);
+        grid-template-rows: auto;
+        border: 1px solid blue;
+        padding: 10px;
+        gap: 5px;
+        position: relative;
+    }
+
+    .item {
+        background: lightblue;
+        padding: 5px;
+        height: 100px;
+    }
+
+    .wrapper {
+        background: lightgreen;
+        padding: 5px;
+        height: 60px;
+        border: 1px dashed green;
+    }
+
+    .absolute {
+        position: absolute;
+        grid-column: 1 / 2;
+        grid-row: 1 / 2;
+        background: red;
+        top: 30px;
+        width: 20px;
+        height: 20px;
+    }
+
+    .static-pos-with-grid-column {
+        position: absolute;
+        background: yellow;
+        grid-row: 1 / 2;
+        grid-column: 2 / 3;
+        width: 10px;
+        height: 10px;
+    }
+
+    .static-pos {
+        position: absolute;
+        background: orange;
+        width: 10px;
+        height: 10px;
+    }
+  </style>
+</head>
+<body>
+<div class="container">
+  <div class="grid">
+    <div class="item">
+      <div class="wrapper">
+        <div class="absolute"></div>
+      </div>
+    </div>
+    <div class="item">
+      <div class="wrapper">
+        <div class="static-pos-with-grid-column"></div>
+      </div>
+    </div>
+    <div class="item">
+      <div class="static-pos"></div>
+    </div>
+    <div class="item"></div>
+  </div>
+</div>
+</body>
+</html>
diff --git a/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/column-masonry-out-of-flow-002.html b/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/column-masonry-out-of-flow-002.html
new file mode 100644
index 00000000000..c24b64dc555
--- /dev/null
+++ b/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/column-masonry-out-of-flow-002.html
@@ -0,0 +1,84 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>CSS Masonry Test: Masonry layout out-of-flow positioning</title>
+  <link rel="author" title="Yanling Wang" href="mailto:yanlingwang@microsoft.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid-3/#abspos">
+  <link rel="match" href="column-masonry-out-of-flow-002-ref.html">
+  <style>
+    .container {
+        width: 300px;
+        height: 150px;
+        border: 2px solid black;
+        margin: 20px;
+    }
+
+    .masonry {
+        display: masonry;
+        grid-template-columns: repeat(4, 60px);
+        border: 1px solid blue;
+        padding: 10px;
+        gap: 5px;
+        position: relative;
+    }
+
+    .item {
+        background: lightblue;
+        padding: 5px;
+        height: 100px;
+    }
+
+    .wrapper {
+        background: lightgreen;
+        padding: 5px;
+        height: 60px;
+        border: 1px dashed green;
+    }
+
+    .absolute {
+        position: absolute;
+        background: red;
+        grid-column: 1 / 2;
+        top: 30px;
+        width: 20px;
+        height: 20px;
+    }
+
+    .static-pos-with-grid-column {
+        position: absolute;
+        background: yellow;
+        grid-column: 2 / 3;
+        width: 10px;
+        height: 10px;
+    }
+
+    .static-pos {
+        position: absolute;
+        background: orange;
+        width: 10px;
+        height: 10px;
+    }
+  </style>
+</head>
+<body>
+<div class="container">
+  <div class="masonry">
+    <div class="item">
+      <div class="wrapper">
+        <div class="absolute"></div>
+      </div>
+    </div>
+    <div class="item">
+      <div class="wrapper">
+        <div class="static-pos-with-grid-column"></div>
+      </div>
+    </div>
+    <div class="item">
+      <div class="static-pos"></div>
+    </div>
+    <div class="item"></div>
+  </div>
+</div>
+</body>
+</html>
diff --git a/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/column-masonry-out-of-flow-003-ref.html b/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/column-masonry-out-of-flow-003-ref.html
new file mode 100644
index 00000000000..a9218014ca0
--- /dev/null
+++ b/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/column-masonry-out-of-flow-003-ref.html
@@ -0,0 +1,68 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="utf-8">
+  <style>
+    .container {
+        width: 500px;
+        height: 400px;
+        position: relative;
+        border: 2px solid black;
+        margin: 20px;
+    }
+
+    .grid {
+        display: grid;
+        grid-template-columns: 50px 100px 150px;
+        grid-template-rows: auto;
+        border: 5px solid blue;
+        margin: 20px 30px;
+        padding: 5px 15px;
+        gap: 10px;
+    }
+
+    .grid-item {
+        background: lightgray;
+        padding: 10px;
+        height: 200px;
+    }
+
+    .nested-container {
+        background: lightgreen;
+        padding: 5px;
+        border: 1px solid green;
+    }
+
+    .absolute {
+        position: absolute;
+        background: red;
+        width: 60px;
+        height: 40px;
+        top: 50px;
+        left: 100px;
+        border: 1px solid darkred;
+    }
+
+    .static-pos {
+        position: absolute;
+        background: orange;
+        width: 10px;
+        height: 10px;
+    }
+  </style>
+</head>
+<body>
+<div class="container">
+  <div class="grid">
+    <div class="grid-item">
+      <div class="nested-container">
+        <div class="absolute"></div>
+      </div>
+    </div>
+    <div class="grid-item"></div>
+    <div class="grid-item"></div>
+    <div class="static-pos"></div>
+  </div>
+</div>
+</body>
+</html>
diff --git a/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/column-masonry-out-of-flow-003.html b/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/column-masonry-out-of-flow-003.html
new file mode 100644
index 00000000000..7dcd5f8eca0
--- /dev/null
+++ b/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/column-masonry-out-of-flow-003.html
@@ -0,0 +1,71 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>CSS Masonry Test: Masonry layout out-of-flow positioning</title>
+  <link rel="author" title="Yanling Wang" href="mailto:yanlingwang@microsoft.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid-3/#abspos">
+  <link rel="match" href="column-masonry-out-of-flow-003-ref.html">
+  <style>
+    .container {
+        width: 500px;
+        height: 400px;
+        position: relative;
+        border: 2px solid black;
+        margin: 20px;
+    }
+
+    .masonry {
+        display: masonry;
+        grid-template-columns: 50px 100px 150px;
+        border: 5px solid blue;
+        margin: 20px 30px;
+        padding: 5px 15px;
+        gap: 10px;
+    }
+
+    .masonry-item {
+        background: lightgray;
+        padding: 10px;
+        height: 200px;
+    }
+
+    .nested-container {
+        background: lightgreen;
+        padding: 5px;
+        border: 1px solid green;
+    }
+
+    .absolute {
+        position: absolute;
+        background: red;
+        width: 60px;
+        height: 40px;
+        top: 50px;
+        left: 100px;
+        border: 1px solid darkred;
+    }
+
+    .static-pos {
+        position: absolute;
+        background: orange;
+        width: 10px;
+        height: 10px;
+    }
+  </style>
+</head>
+<body>
+<div class="container">
+  <div class="masonry">
+    <div class="masonry-item">
+      <div class="nested-container">
+        <div class="absolute"></div>
+      </div>
+    </div>
+    <div class="masonry-item"></div>
+    <div class="masonry-item"></div>
+    <div class="static-pos"></div>
+  </div>
+</div>
+</body>
+</html>
diff --git a/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/column-masonry-positioned-item-dynamic-change-ref.html b/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/column-masonry-positioned-item-dynamic-change-ref.html
new file mode 100644
index 00000000000..ab7661d01af
--- /dev/null
+++ b/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/column-masonry-positioned-item-dynamic-change-ref.html
@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="utf-8">
+  <style>
+    .reference {
+        display: grid;
+        background: green;
+        width: 100px;
+        height: 50px;
+    }
+  </style>
+</head>
+<body>
+<div class="reference">
+</div>
+</body>
+</html>
diff --git a/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/column-masonry-positioned-item-dynamic-change.html b/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/column-masonry-positioned-item-dynamic-change.html
new file mode 100644
index 00000000000..d31621e9c82
--- /dev/null
+++ b/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/column-masonry-positioned-item-dynamic-change.html
@@ -0,0 +1,39 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>CSS Masonry Layout Test: Masonry positioned item dynamic change.</title>
+  <link rel="author" title="Yanling Wang" href="mailto:yanlingwang@microsoft.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid-3/#abspos">
+  <link rel="match" href="column-masonry-positioned-item-dynamic-change-ref.html">
+  <style>
+    .masonry {
+        display: masonry;
+        grid-template-columns: 75px 25px;
+        position: relative;
+    }
+
+    .absolute {
+        background: green;
+        position: absolute;
+        grid-column: 2 / 3;
+        top: 0;
+        bottom: 0;
+        right: 0;
+        left: 0;
+    }
+  </style>
+</head>
+<body>
+<div class="masonry">
+  <div id="target" style="background: green; width: 100%; height: 25px;"></div>
+  <div style="background: red; width: 100%; height: 25px;"></div>
+  <div class="absolute"></div>
+</div>
+<script>
+  document.body.offsetTop;
+  document.getElementById('target').style.height = '50px';
+  document.documentElement.classList.remove('reftest-wait');
+</script>
+</body>
+</html>
diff --git a/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/row-masonry-alignment-ref.html b/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/row-masonry-alignment-ref.html
new file mode 100644
index 00000000000..b89eb293056
--- /dev/null
+++ b/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/row-masonry-alignment-ref.html
@@ -0,0 +1,144 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="utf-8">
+  <style>
+    html,body {
+        color:black;
+        background-color:white;
+        font:15px/1 monospace;
+    }
+
+    .container {
+        width: 800px;
+        height: 850px;
+        border: 2px solid black;
+        margin: 20px;
+    }
+
+    .grid {
+        display: grid;
+        grid-template-rows: repeat(5, 150px);
+        grid-auto-columns: auto;
+        position: relative;
+        padding: 20px;
+        gap: 15px;
+        border: 1px dashed #999;
+        width: 700px;
+    }
+
+    .item {
+        background: lightblue;
+        padding: 10px;
+        border: 1px solid blue;
+        width: 80px;
+    }
+
+    .abspos {
+        position: absolute;
+        width: 40px;
+        height: 60px;
+        border: 2px solid black;
+        font-size: 10px;
+        display: flex;
+        align-items: center;
+        justify-content: center;
+        text-align: center;
+    }
+
+    .align-self {
+        grid-row: 2 / 3;
+        grid-column: 1 / 2;
+    }
+
+    .align-start {
+        align-self: start;
+        background: lightcoral;
+    }
+
+    .align-end {
+        align-self: end;
+        background: lightgreen;
+    }
+
+    .align-center {
+        align-self: center;
+        background: lightblue;
+    }
+
+    .justify-self {
+        grid-row: 4 / 5;
+        grid-column: 1 / 2;
+    }
+
+    .justify-start {
+        justify-self: start;
+        background: gold;
+    }
+
+    .justify-end {
+        justify-self: end;
+        background: silver;
+    }
+
+    .justify-center {
+        justify-self: center;
+        background: tan;
+    }
+
+    .combo-center-center {
+        grid-row: 3 / 4;
+        grid-column: 1 / 2;
+        align-self: center;
+        justify-self: center;
+        background: hotpink;
+    }
+
+    .safe-align {
+        position: absolute;
+        background: orange;
+        border: 1px solid darkorange;
+        grid-row: 1 / 2;
+        grid-column: 1 / 2;
+        height: 170px;
+        width: 30px;
+        align-self: safe end;
+        justify-self: center;
+        font-size: 10px;
+    }
+
+    .unsafe-align {
+        position: absolute;
+        background: purple;
+        border: 1px solid darkmagenta;
+        grid-row: 5 / 6;
+        grid-column: 1 / 2;
+        height: 170px;
+        width: 30px;
+        align-self: unsafe end;
+        justify-self: center;
+        font-size: 10px;
+    }
+  </style>
+</head>
+<body>
+<div class="container">
+  <div class="grid">
+    <div class="item">Item 1</div>
+    <div class="item">Item 2</div>
+    <div class="item">Item 3</div>
+    <div class="abspos align-self align-start">align-self: start</div>
+    <div class="abspos align-self align-end">align-self: end</div>
+    <div class="abspos align-self align-center">align-self: center</div>
+    <div class="item">Item 4</div>
+    <div class="item">Item 5</div>
+    <div class="abspos justify-self justify-start">justify-self: start</div>
+    <div class="abspos justify-self justify-end">justify-self: end</div>
+    <div class="abspos justify-self justify-center">justify-self: center</div>
+    <div class="abspos combo-center-center">center + center</div>
+    <div class="safe-align">align-self: safe end</div>
+    <div class="unsafe-align">align-self: unsafe end</div>
+  </div>
+</div>
+</body>
+</html>
diff --git a/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/row-masonry-alignment.html b/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/row-masonry-alignment.html
new file mode 100644
index 00000000000..5fb9b4b133e
--- /dev/null
+++ b/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/row-masonry-alignment.html
@@ -0,0 +1,143 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>CSS Masonry Test: Masonry layout alignment properties for absolutely positioned elements</title>
+  <link rel="author" title="Yanling Wang" href="mailto:yanlingwang@microsoft.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid-3/#abspos">
+  <link rel="match" href="row-masonry-alignment-ref.html">
+  <style>
+    html,body {
+        color:black;
+        background-color:white;
+        font:15px/1 monospace;
+    }
+
+    .container {
+        width: 800px;
+        height: 850px;
+        border: 2px solid black;
+        margin: 20px;
+    }
+
+    .masonry {
+        display: masonry;
+        masonry-direction: row;
+        grid-template-rows: repeat(5, 150px);
+        position: relative;
+        padding: 20px;
+        gap: 15px;
+        border: 1px dashed #999;
+        width: 700px;
+    }
+
+    .item {
+        background: lightblue;
+        padding: 10px;
+        border: 1px solid blue;
+        width: 80px;
+    }
+
+    .abspos {
+        position: absolute;
+        width: 40px;
+        height: 60px;
+        border: 2px solid black;
+        font-size: 10px;
+        display: flex;
+        align-items: center;
+        justify-content: center;
+        text-align: center;
+    }
+
+    .align-self {
+        grid-row: 2 / 3;
+    }
+
+    .align-start {
+        align-self: start;
+        background: lightcoral;
+    }
+
+    .align-end {
+        align-self: end;
+        background: lightgreen;
+    }
+
+    .align-center {
+        align-self: center;
+        background: lightblue;
+    }
+
+    .justify-self {
+        grid-row: 4 / 5;
+    }
+
+    .justify-start {
+        justify-self: start;
+        background: gold;
+    }
+
+    .justify-end {
+        justify-self: end;
+        background: silver;
+    }
+
+    .justify-center {
+        justify-self: center;
+        background: tan;
+    }
+
+    .combo-center-center {
+        grid-row: 3 / 4;
+        align-self: center;
+        justify-self: center;
+        background: hotpink;
+    }
+
+    .safe-align {
+        position: absolute;
+        background: orange;
+        border: 1px solid darkorange;
+        grid-row: 1 / 2;
+        height: 170px;
+        width: 30px;
+        align-self: safe end;
+        justify-self: center;
+        font-size: 10px;
+    }
+
+    .unsafe-align {
+        position: absolute;
+        background: purple;
+        border: 1px solid darkmagenta;
+        grid-row: 5 / 6;
+        height: 170px;
+        width: 30px;
+        align-self: unsafe end;
+        justify-self: center;
+        font-size: 10px;
+    }
+  </style>
+</head>
+<body>
+<div class="container">
+  <div class="masonry">
+    <div class="item">Item 1</div>
+    <div class="item">Item 2</div>
+    <div class="item">Item 3</div>
+    <div class="abspos align-self align-start">align-self: start</div>
+    <div class="abspos align-self align-end">align-self: end</div>
+    <div class="abspos align-self align-center">align-self: center</div>
+    <div class="item">Item 4</div>
+    <div class="item">Item 5</div>
+    <div class="abspos justify-self justify-start">justify-self: start</div>
+    <div class="abspos justify-self justify-end">justify-self: end</div>
+    <div class="abspos justify-self justify-center">justify-self: center</div>
+    <div class="abspos combo-center-center">center + center</div>
+    <div class="safe-align">align-self: safe end</div>
+    <div class="unsafe-align">align-self: unsafe end</div>
+  </div>
+</div>
+</body>
+</html>
diff --git a/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/row-masonry-intrinsic-sizing-oof-ref.html b/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/row-masonry-intrinsic-sizing-oof-ref.html
new file mode 100644
index 00000000000..b418cbfb5ea
--- /dev/null
+++ b/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/row-masonry-intrinsic-sizing-oof-ref.html
@@ -0,0 +1,52 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="utf-8">
+  <style>
+    .container {
+        border: 2px solid black;
+        margin: 10px;
+        height: 300px;
+        position: relative;
+    }
+
+    .grid {
+        display: grid;
+        border: 2px solid blue;
+        padding: 5px;
+        grid-template-columns: auto;
+        grid-template-rows: repeat(3, auto);
+    }
+
+    .oof-item {
+        position: absolute;
+        background: red;
+        color: white;
+        padding: 5px;
+        border: 1px solid darkred;
+    }
+
+    .oof-1 {
+        top: 50px;
+        left: 50px;
+        width: 60px;
+        height: 40px;
+    }
+
+    .oof-2 {
+        top: 150px;
+        left: 100px;
+        width: 70px;
+        height: 50px;
+    }
+  </style>
+</head>
+<body>
+<div class="container">
+  <div class="grid">
+    <div class="oof-item oof-1"></div>
+    <div class="oof-item oof-2"></div>
+  </div>
+</div>
+</body>
+</html>
diff --git a/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/row-masonry-intrinsic-sizing-oof.html b/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/row-masonry-intrinsic-sizing-oof.html
new file mode 100644
index 00000000000..c9d0582d60b
--- /dev/null
+++ b/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/row-masonry-intrinsic-sizing-oof.html
@@ -0,0 +1,57 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>CSS Masonry Test: Masonry layout intrinsic size with only OOF children</title>
+  <link rel="author" title="Yanling Wang" href="mailto:yanlingwang@microsoft.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid-3/#track-sizing">
+  <link rel="help" href="https://drafts.csswg.org/css-grid-3/#abspos">
+  <link rel="match" href="row-masonry-intrinsic-sizing-oof-ref.html">
+  <style>
+    .container {
+        border: 2px solid black;
+        margin: 10px;
+        height: 300px;
+        position: relative;
+    }
+
+    .masonry {
+        display: masonry;
+        masonry-direction: row;
+        grid-template-rows: repeat(3, auto);
+        border: 2px solid blue;
+        padding: 5px;
+    }
+
+    .oof-item {
+        position: absolute;
+        background: red;
+        color: white;
+        padding: 5px;
+        border: 1px solid darkred;
+    }
+
+    .oof-1 {
+        top: 50px;
+        left: 50px;
+        width: 60px;
+        height: 40px;
+    }
+
+    .oof-2 {
+        top: 150px;
+        left: 100px;
+        width: 70px;
+        height: 50px;
+    }
+  </style>
+</head>
+<body>
+<div class="container">
+  <div class="masonry">
+    <div class="oof-item oof-1"></div>
+    <div class="oof-item oof-2"></div>
+  </div>
+</div>
+</body>
+</html>
diff --git a/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/row-masonry-out-of-flow-001-ref.html b/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/row-masonry-out-of-flow-001-ref.html
new file mode 100644
index 00000000000..49fe1967bae
--- /dev/null
+++ b/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/row-masonry-out-of-flow-001-ref.html
@@ -0,0 +1,88 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="utf-8">
+  <style>
+    .container {
+        width: 900px;
+        height: 600px;
+        border: 2px solid black;
+        margin: 20px;
+    }
+
+    .grid {
+        display: grid;
+        grid-template-rows: repeat(4, 8rem);
+        grid-template-columns: 800px;
+        align-content: center;
+        position: relative;
+        height: 32rem;
+        width: 800px;
+        padding: 20px;
+        gap: 10px;
+    }
+
+    .abspos-first {
+        grid-row: span 2;
+        grid-column: 1 / 2;
+        position: absolute;
+        top: 80px;
+        bottom: 30px;
+        left: 70px;
+        right: 440px;
+        background: blue;
+    }
+
+    .abspos-second {
+        grid-row: 4 / 5;
+        grid-column: 1 / 2;
+        position: absolute;
+        top: 10px;
+        left: 10px;
+        width: 100px;
+        height: 60px;
+        background: red;
+    }
+
+    .abspos-third {
+        grid-row: 4 / 5;
+        grid-column: 1 / 2;
+        position: absolute;
+        width: 50px;
+        height: 60px;
+        background: yellow;
+        align-self: end;
+    }
+
+    .fixedpos {
+        position: fixed;
+        left: 50%;
+        bottom: 0;
+        width: 80px;
+        height: 40px;
+        background: green;
+    }
+
+    .static-span-two {
+        position: absolute;
+        width: 120px;
+        height: 30px;
+        background: lightcoral;
+        border: 2px solid red;
+        grid-row: span 2;
+        grid-column: 1 / 2;
+    }
+  </style>
+</head>
+<body>
+<div class="container">
+  <div class="grid">
+    <div class="abspos-first"></div>
+    <div class="abspos-second"></div>
+    <div class="abspos-third"></div>
+    <div class="fixedpos"></div>
+    <div class="static-span-two"></div>
+  </div>
+</div>
+</body>
+</html>
diff --git a/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/row-masonry-out-of-flow-001.html b/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/row-masonry-out-of-flow-001.html
new file mode 100644
index 00000000000..4d5ecb65154
--- /dev/null
+++ b/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/row-masonry-out-of-flow-001.html
@@ -0,0 +1,88 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>CSS Masonry Test: Masonry layout out-of-flow positioning</title>
+  <link rel="author" title="Yanling Wang" href="mailto:yanlingwang@microsoft.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid-3/#abspos">
+  <link rel="match" href="row-masonry-out-of-flow-001-ref.html">
+  <style>
+    .container {
+        width: 900px;
+        height: 600px;
+        border: 2px solid black;
+        margin: 20px;
+    }
+
+    .masonry {
+        display: masonry;
+        masonry-direction: row;
+        grid-template-rows: repeat(4, 8rem);
+        align-content: center;
+        position: relative;
+        height: 32rem;
+        width: 800px;
+        padding: 20px;
+        gap: 10px;
+    }
+
+    .abspos-first {
+        grid-row: span 2;
+        position: absolute;
+        top: 80px;
+        bottom: 30px;
+        left: 70px;
+        right: 440px;
+        background: blue;
+    }
+
+    .abspos-second {
+        grid-row: 4 / 5;
+        position: absolute;
+        top: 10px;
+        left: 10px;
+        width: 100px;
+        height: 60px;
+        background: red;
+    }
+
+    .abspos-third {
+        grid-row: 4 / 5;
+        position: absolute;
+        width: 50px;
+        height: 60px;
+        background: yellow;
+        align-self: end;
+    }
+
+    .fixedpos {
+        position: fixed;
+        left: 50%;
+        bottom: 0;
+        width: 80px;
+        height: 40px;
+        background: green;
+    }
+
+    .static-span-two {
+        position: absolute;
+        width: 120px;
+        height: 30px;
+        background: lightcoral;
+        border: 2px solid red;
+        grid-row: span 2;
+    }
+  </style>
+</head>
+<body>
+<div class="container">
+  <div class="masonry">
+    <div class="abspos-first"></div>
+    <div class="abspos-second"></div>
+    <div class="abspos-third"></div>
+    <div class="fixedpos"></div>
+    <div class="static-span-two"></div>
+  </div>
+</div>
+</body>
+</html>
diff --git a/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/row-masonry-out-of-flow-002-ref.html b/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/row-masonry-out-of-flow-002-ref.html
new file mode 100644
index 00000000000..3efc256ec34
--- /dev/null
+++ b/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/row-masonry-out-of-flow-002-ref.html
@@ -0,0 +1,84 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="utf-8">
+  <style>
+    .container {
+        width: 150px;
+        height: 300px;
+        border: 2px solid black;
+        margin: 20px;
+    }
+
+    .grid {
+        display: grid;
+        grid-template-rows: repeat(4, 60px);
+        grid-template-columns: auto;
+        border: 1px solid blue;
+        padding: 10px;
+        gap: 5px;
+        position: relative;
+    }
+
+    .item {
+        background: lightblue;
+        padding: 5px;
+        width: 40px;
+    }
+
+    .wrapper {
+        background: lightgreen;
+        padding: 5px;
+        width: 30px;
+        height: 30px;
+        border: 1px dashed green;
+    }
+
+    .absolute {
+        position: absolute;
+        grid-row: 1 / 2;
+        grid-column: 1 / 2;
+        background: red;
+        left: 20px;
+        width: 20px;
+        height: 20px;
+    }
+
+    .static-pos-with-grid-row {
+        position: absolute;
+        background: yellow;
+        grid-row: 2 / 3;
+        grid-column: 1 / 2;
+        width: 10px;
+        height: 10px;
+    }
+
+    .static-pos {
+        position: absolute;
+        background: orange;
+        width: 10px;
+        height: 10px;
+    }
+  </style>
+</head>
+<body>
+<div class="container">
+  <div class="grid">
+    <div class="item">
+      <div class="wrapper">
+        <div class="absolute"></div>
+      </div>
+    </div>
+    <div class="item">
+      <div class="wrapper">
+        <div class="static-pos-with-grid-row"></div>
+      </div>
+    </div>
+    <div class="item">
+      <div class="static-pos"></div>
+    </div>
+    <div class="item"></div>
+  </div>
+</div>
+</body>
+</html>
diff --git a/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/row-masonry-out-of-flow-002.html b/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/row-masonry-out-of-flow-002.html
new file mode 100644
index 00000000000..c93b9c2f60d
--- /dev/null
+++ b/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/row-masonry-out-of-flow-002.html
@@ -0,0 +1,86 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>CSS Masonry Test: Masonry layout out-of-flow positioning</title>
+  <link rel="author" title="Yanling Wang" href="mailto:yanlingwang@microsoft.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid-3/#abspos">
+  <link rel="match" href="row-masonry-out-of-flow-002-ref.html">
+  <style>
+    .container {
+        width: 150px;
+        height: 300px;
+        border: 2px solid black;
+        margin: 20px;
+    }
+
+    .masonry {
+        display: masonry;
+        masonry-direction: row;
+        grid-template-rows: repeat(4, 60px);
+        border: 1px solid blue;
+        padding: 10px;
+        gap: 5px;
+        position: relative;
+    }
+
+    .item {
+        background: lightblue;
+        padding: 5px;
+        width: 40px;
+    }
+
+    .wrapper {
+        background: lightgreen;
+        padding: 5px;
+        width: 30px;
+        height: 30px;
+        border: 1px dashed green;
+    }
+
+    .absolute {
+        position: absolute;
+        background: red;
+        grid-row: 1 / 2;
+        left: 20px;
+        width: 20px;
+        height: 20px;
+    }
+
+    .static-pos-with-grid-row {
+        position: absolute;
+        background: yellow;
+        grid-row: 2 / 3;
+        width: 10px;
+        height: 10px;
+    }
+
+    .static-pos {
+        position: absolute;
+        background: orange;
+        width: 10px;
+        height: 10px;
+    }
+  </style>
+</head>
+<body>
+<div class="container">
+  <div class="masonry">
+    <div class="item">
+      <div class="wrapper">
+        <div class="absolute"></div>
+      </div>
+    </div>
+    <div class="item">
+      <div class="wrapper">
+        <div class="static-pos-with-grid-row"></div>
+      </div>
+    </div>
+    <div class="item">
+      <div class="static-pos"></div>
+    </div>
+    <div class="item"></div>
+  </div>
+</div>
+</body>
+</html>
diff --git a/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/row-masonry-out-of-flow-003-ref.html b/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/row-masonry-out-of-flow-003-ref.html
new file mode 100644
index 00000000000..23391b5f4aa
--- /dev/null
+++ b/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/row-masonry-out-of-flow-003-ref.html
@@ -0,0 +1,68 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="utf-8">
+  <style>
+    .container {
+        width: 400px;
+        height: 500px;
+        position: relative;
+        border: 2px solid black;
+        margin: 20px;
+    }
+
+    .grid {
+        display: grid;
+        grid-template-rows: 50px 100px 150px;
+        grid-template-columns: auto;
+        border: 5px solid blue;
+        margin: 30px 20px;
+        padding: 15px 5px;
+        gap: 10px;
+    }
+
+    .grid-item {
+        background: lightgray;
+        padding: 10px;
+        width: 200px;
+    }
+
+    .nested-container {
+        background: lightgreen;
+        padding: 5px;
+        border: 1px solid green;
+    }
+
+    .absolute {
+        position: absolute;
+        background: red;
+        width: 60px;
+        height: 40px;
+        top: 50px;
+        left: 100px;
+        border: 1px solid darkred;
+    }
+
+    .static-pos {
+        position: absolute;
+        background: orange;
+        width: 10px;
+        height: 10px;
+    }
+  </style>
+</head>
+<body>
+<div class="container">
+  <div class="grid">
+    <div class="grid-item">
+      <div class="nested-container">
+        <div class="absolute"></div>
+      </div>
+    </div>
+    <div class="grid-item"></div>
+    <div class="grid-item"></div>
+    <div class="static-pos"></div>
+  </div>
+</div>
+</body>
+</html>
diff --git a/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/row-masonry-out-of-flow-003.html b/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/row-masonry-out-of-flow-003.html
new file mode 100644
index 00000000000..1706939bae9
--- /dev/null
+++ b/tests/wpt/tests/css/css-grid/masonry/tentative/abspos/row-masonry-out-of-flow-003.html
@@ -0,0 +1,72 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>CSS Masonry Test: Masonry layout out-of-flow positioning</title>
+  <link rel="author" title="Yanling Wang" href="mailto:yanlingwang@microsoft.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid-3/#abspos">
+  <link rel="match" href="row-masonry-out-of-flow-003-ref.html">
+  <style>
+    .container {
+        width: 400px;
+        height: 500px;
+        position: relative;
+        border: 2px solid black;
+        margin: 20px;
+    }
+
+    .masonry {
+        display: masonry;
+        masonry-direction: row;
+        grid-template-rows: 50px 100px 150px;
+        border: 5px solid blue;
+        margin: 30px 20px;
+        padding: 15px 5px;
+        gap: 10px;
+    }
+
+    .masonry-item {
+        background: lightgray;
+        padding: 10px;
+        width: 200px;
+    }
+
+    .nested-container {
+        background: lightgreen;
+        padding: 5px;
+        border: 1px solid green;
+    }
+
+    .absolute {
+        position: absolute;
+        background: red;
+        width: 60px;
+        height: 40px;
+        top: 50px;
+        left: 100px;
+        border: 1px solid darkred;
+    }
+
+    .static-pos {
+        position: absolute;
+        background: orange;
+        width: 10px;
+        height: 10px;
+    }
+  </style>
+</head>
+<body>
+<div class="container">
+  <div class="masonry">
+    <div class="masonry-item">
+      <div class="nested-container">
+        <div class="absolute"></div>
+      </div>
+    </div>
+    <div class="masonry-item"></div>
+    <div class="masonry-item"></div>
+    <div class="static-pos"></div>
+  </div>
+</div>
+</body>
+</html>
diff --git a/tests/wpt/tests/css/css-masking/clip-path/clip-path-borderBox-1b.html b/tests/wpt/tests/css/css-masking/clip-path/clip-path-borderBox-1b.html
index c253c3c9db1..b206842ace5 100644
--- a/tests/wpt/tests/css/css-masking/clip-path/clip-path-borderBox-1b.html
+++ b/tests/wpt/tests/css/css-masking/clip-path/clip-path-borderBox-1b.html
@@ -8,7 +8,7 @@
     <link rel="help" href="https://www.w3.org/TR/css-masking-1/#the-clip-path">
     <link rel="match" href="clip-path-geometryBox-1-ref.html">
     <meta name="assert" content="Test checks whether clip-path border-box works correctly or not. This test is for clip-path applied to an SVG element.">
-    <meta name="fuzzy" content="maxDifference=0-60; totalPixels=0-394">
+    <meta name="fuzzy" content="maxDifference=0-70; totalPixels=0-500">
   </head>
   <body>
     <svg width="200" height="200" style="position: absolute; left: 15px; top: 10px;">
diff --git a/tests/wpt/tests/css/css-masking/clip-path/clip-path-circle-001.html b/tests/wpt/tests/css/css-masking/clip-path/clip-path-circle-001.html
index e40cdb103a9..355f48eb2fa 100644
--- a/tests/wpt/tests/css/css-masking/clip-path/clip-path-circle-001.html
+++ b/tests/wpt/tests/css/css-masking/clip-path/clip-path-circle-001.html
@@ -12,6 +12,7 @@
     <meta name="assert" content="The clip-path property takes the basic shape
     'circle' for clipping. Test absolute values for arguments. On pass you
     should see a green circle and no red.">
+    <meta name="fuzzy" content="maxDifference=0-60; totalPixels=0-900">
 </head>
 <body>
     <p>The test passes if there is a full green circle.</p>
diff --git a/tests/wpt/tests/css/css-masking/clip-path/clip-path-circle-002.html b/tests/wpt/tests/css/css-masking/clip-path/clip-path-circle-002.html
index deb199a5b66..751167f1743 100644
--- a/tests/wpt/tests/css/css-masking/clip-path/clip-path-circle-002.html
+++ b/tests/wpt/tests/css/css-masking/clip-path/clip-path-circle-002.html
@@ -11,6 +11,7 @@
     'circle' for clipping. Test percentage values for arguments. If no
     reference box was specified, percentage is relative to border-box. On pass
     there should be a green circle.">
+    <meta name="fuzzy" content="maxDifference=0-60; totalPixels=0-900">
 </head>
 <body>
     <p>The test passes if there is a full green circle.</p>
diff --git a/tests/wpt/tests/css/css-masking/clip-path/clip-path-circle-003.html b/tests/wpt/tests/css/css-masking/clip-path/clip-path-circle-003.html
index 24b3f31f61b..ff2e699233b 100644
--- a/tests/wpt/tests/css/css-masking/clip-path/clip-path-circle-003.html
+++ b/tests/wpt/tests/css/css-masking/clip-path/clip-path-circle-003.html
@@ -11,6 +11,7 @@
     'circle' for clipping. Test percentage value as argument for radius and no
     position arguments. The circle should be in the center of the element. On
     pass there should be a green circle.">
+    <meta name="fuzzy" content="maxDifference=0-60; totalPixels=0-900">
 </head>
 <body>
     <p>The test passes if there is a full green circle.</p>
diff --git a/tests/wpt/tests/css/css-masking/clip-path/clip-path-circle-004.html b/tests/wpt/tests/css/css-masking/clip-path/clip-path-circle-004.html
index ddbccf0336d..03fb139c74e 100644
--- a/tests/wpt/tests/css/css-masking/clip-path/clip-path-circle-004.html
+++ b/tests/wpt/tests/css/css-masking/clip-path/clip-path-circle-004.html
@@ -11,6 +11,7 @@
     'circle' for clipping. Test percentage value as argument for position and
     no radius argument. The circle must behave like it has a radius of
     'closest-side'. On pass there should be a green circle.">
+    <meta name="fuzzy" content="maxDifference=0-60; totalPixels=0-900">
 </head>
 <body>
     <p>The test passes if there is a full green circle.</p>
diff --git a/tests/wpt/tests/css/css-masking/clip-path/clip-path-circle-005.html b/tests/wpt/tests/css/css-masking/clip-path/clip-path-circle-005.html
index 3a25ce5fff7..b508b9f66af 100644
--- a/tests/wpt/tests/css/css-masking/clip-path/clip-path-circle-005.html
+++ b/tests/wpt/tests/css/css-masking/clip-path/clip-path-circle-005.html
@@ -11,6 +11,7 @@
     'circle' for clipping. The circle has a radius of 'closest-side'. This test
     has a squred div-box. Therefore, 'closest-side', 50% and 'farthest-side'
     show the same behavior. On pass there should be a green circle.">
+    <meta name="fuzzy" content="maxDifference=0-60; totalPixels=0-900">
 </head>
 <body>
     <p>The test passes if there is a full green circle.</p>
diff --git a/tests/wpt/tests/css/css-masking/clip-path/clip-path-circle-006.html b/tests/wpt/tests/css/css-masking/clip-path/clip-path-circle-006.html
index 8434edd2160..4bfc63595aa 100644
--- a/tests/wpt/tests/css/css-masking/clip-path/clip-path-circle-006.html
+++ b/tests/wpt/tests/css/css-masking/clip-path/clip-path-circle-006.html
@@ -12,6 +12,7 @@
     test has a squred div-box. Therefore, 'closest-side', 50% and
     'farthest-side' show the same behavior. On pass there should be a green
     circle.">
+    <meta name="fuzzy" content="maxDifference=0-60; totalPixels=0-900">
 </head>
 <body>
     <p>The test passes if there is a full green circle.</p>
diff --git a/tests/wpt/tests/css/css-masking/clip-path/clip-path-circle-007.html b/tests/wpt/tests/css/css-masking/clip-path/clip-path-circle-007.html
index 60c5cd52e32..39efa785003 100644
--- a/tests/wpt/tests/css/css-masking/clip-path/clip-path-circle-007.html
+++ b/tests/wpt/tests/css/css-masking/clip-path/clip-path-circle-007.html
@@ -10,6 +10,7 @@
     <meta name="assert" content="The clip-path property takes the basic shape
     'circle' for clipping. The clipped div box is twice as wide as it is
     height. With 'closest-side', there should be a full green circle.">
+    <meta name="fuzzy" content="maxDifference=0-60; totalPixels=0-900">
     <style type="text/css">
     body, div {
         padding: 0;
diff --git a/tests/wpt/tests/css/css-masking/clip-path/clip-path-circle-008.html b/tests/wpt/tests/css/css-masking/clip-path/clip-path-circle-008.html
index a931d3e319e..fe6fa940bdf 100644
--- a/tests/wpt/tests/css/css-masking/clip-path/clip-path-circle-008.html
+++ b/tests/wpt/tests/css/css-masking/clip-path/clip-path-circle-008.html
@@ -10,6 +10,7 @@
     <meta name="assert" content="The clip-path property takes the basic shape
     'circle' for clipping. The clipped div box is twice as high as it is
     wide. With 'closest-side', there should be a full green circle.">
+    <meta name="fuzzy" content="maxDifference=0-60; totalPixels=0-900">
     <style type="text/css">
     body, div {
         padding: 0;
diff --git a/tests/wpt/tests/css/css-masking/clip-path/clip-path-ellipse-001.html b/tests/wpt/tests/css/css-masking/clip-path/clip-path-ellipse-001.html
index f48b197137c..28ae0c82556 100644
--- a/tests/wpt/tests/css/css-masking/clip-path/clip-path-ellipse-001.html
+++ b/tests/wpt/tests/css/css-masking/clip-path/clip-path-ellipse-001.html
@@ -10,6 +10,7 @@
 	<meta name="assert" content="The clip-path property takes the basic shape
 	'ellipse' for clipping. Test absolute values for radii and position
 	arguments. On pass you should see a green ellipse.">
+	<meta name="fuzzy" content="maxDifference=0-59; totalPixels=0-600">
 </head>
 <body>
 	<p>The test passes if there is a full green ellipse.</p>
diff --git a/tests/wpt/tests/css/css-masking/clip-path/clip-path-ellipse-002.html b/tests/wpt/tests/css/css-masking/clip-path/clip-path-ellipse-002.html
index ecc5ca090f7..b5e46c5e53d 100644
--- a/tests/wpt/tests/css/css-masking/clip-path/clip-path-ellipse-002.html
+++ b/tests/wpt/tests/css/css-masking/clip-path/clip-path-ellipse-002.html
@@ -12,6 +12,7 @@
 	arguments. Percentage values are relative to a reference box. If no
 	reference box was specified, percentage values are relative to border-box.
 	On pass you should see a green ellipse.">
+	<meta name="fuzzy" content="maxDifference=0-59; totalPixels=0-600">
 </head>
 <body>
 	<p>The test passes if there is a full green ellipse.</p>
diff --git a/tests/wpt/tests/css/css-masking/clip-path/clip-path-ellipse-003.html b/tests/wpt/tests/css/css-masking/clip-path/clip-path-ellipse-003.html
index eff287614b1..691ed2e8a5f 100644
--- a/tests/wpt/tests/css/css-masking/clip-path/clip-path-ellipse-003.html
+++ b/tests/wpt/tests/css/css-masking/clip-path/clip-path-ellipse-003.html
@@ -12,6 +12,7 @@
 	arguments. Percentage values are relative to a reference box. If no
 	reference box was specified, percentage values are relative to border-box.
 	On pass there should be a full green circle.">
+	<meta name="fuzzy" content="maxDifference=0-60; totalPixels=0-900">
 </head>
 <body>
 	<p>The test passes if there is a full green circle.</p>
diff --git a/tests/wpt/tests/css/css-masking/clip-path/clip-path-ellipse-004.html b/tests/wpt/tests/css/css-masking/clip-path/clip-path-ellipse-004.html
index 3988840943c..69ab486248c 100644
--- a/tests/wpt/tests/css/css-masking/clip-path/clip-path-ellipse-004.html
+++ b/tests/wpt/tests/css/css-masking/clip-path/clip-path-ellipse-004.html
@@ -10,6 +10,7 @@
 	<meta name="assert" content="The clip-path property takes the basic shape
 	'ellipse' for clipping. Test absolute values for arguments. On pass you
 	should see a green ellipse.">
+	<meta name="fuzzy" content="maxDifference=0-59; totalPixels=0-600">
 </head>
 <body>
 	<p>The test passes if there is a full green ellipse.</p>
diff --git a/tests/wpt/tests/css/css-masking/clip-path/clip-path-ellipse-005.html b/tests/wpt/tests/css/css-masking/clip-path/clip-path-ellipse-005.html
index c7107d26171..5a547f94708 100644
--- a/tests/wpt/tests/css/css-masking/clip-path/clip-path-ellipse-005.html
+++ b/tests/wpt/tests/css/css-masking/clip-path/clip-path-ellipse-005.html
@@ -13,6 +13,7 @@
 	reference box was specified, percentage values are relative to border-box.
 	Different values for getting an ellipse from a square. On pass you should
 	see a green ellipse.">
+	<meta name="fuzzy" content="maxDifference=0-59; totalPixels=0-600">
 </head>
 <body>
 	<p>The test passes if there is a full green ellipse.</p>
diff --git a/tests/wpt/tests/css/css-masking/clip-path/clip-path-ellipse-006.html b/tests/wpt/tests/css/css-masking/clip-path/clip-path-ellipse-006.html
index d0b4efafebf..3f40f6052bf 100644
--- a/tests/wpt/tests/css/css-masking/clip-path/clip-path-ellipse-006.html
+++ b/tests/wpt/tests/css/css-masking/clip-path/clip-path-ellipse-006.html
@@ -10,6 +10,7 @@
 	<meta name="assert" content="The clip-path property takes the basic shape
 	'ellipse' for clipping. Test absolute values for radii and position
 	arguments. On pass you should see a green circle.">
+	<meta name="fuzzy" content="maxDifference=0-59; totalPixels=0-600">
 </head>
 <body>
 	<p>The test passes if there is a full green ellipse.</p>
diff --git a/tests/wpt/tests/css/css-masking/clip-path/clip-path-ellipse-007.html b/tests/wpt/tests/css/css-masking/clip-path/clip-path-ellipse-007.html
index 2105b36df37..a9ff5e5505b 100644
--- a/tests/wpt/tests/css/css-masking/clip-path/clip-path-ellipse-007.html
+++ b/tests/wpt/tests/css/css-masking/clip-path/clip-path-ellipse-007.html
@@ -11,6 +11,7 @@
 	'ellipse' for clipping. If no further arguments were specified, the radii
 	are 'closest-side' each. The position is initialised to the center of the
 	element. On pass there is a full green ellipse.">
+	<meta name="fuzzy" content="maxDifference=0-59; totalPixels=0-600">
 </head>
 <body>
 	<p>The test passes if there is a full green ellipse.</p>
diff --git a/tests/wpt/tests/css/css-masking/clip-path/clip-path-ellipse-008.html b/tests/wpt/tests/css/css-masking/clip-path/clip-path-ellipse-008.html
index 4e4ac518429..827291d3b03 100644
--- a/tests/wpt/tests/css/css-masking/clip-path/clip-path-ellipse-008.html
+++ b/tests/wpt/tests/css/css-masking/clip-path/clip-path-ellipse-008.html
@@ -14,6 +14,7 @@
 	Both radii are specified with percentage values. The position is
 	initialised to the center of the element. On pass there is a full green
 	ellipse.">
+	<meta name="fuzzy" content="maxDifference=0-59; totalPixels=0-600">
 </head>
 <body>
 	<p>The test passes if there is a full green ellipse.</p>
diff --git a/tests/wpt/tests/css/css-mixins/contents-rule.html b/tests/wpt/tests/css/css-mixins/contents-rule.html
index abd380e14e4..9d63cd56118 100644
--- a/tests/wpt/tests/css/css-mixins/contents-rule.html
+++ b/tests/wpt/tests/css/css-mixins/contents-rule.html
@@ -46,9 +46,17 @@
         @contents { color: red !important; }
         color: green;
       }
-      #e4 {
+      #e5 {
         @apply --m5 { color: red !important; }
       }
+
+      @mixin --m6(@contents) {
+        @contents { }
+        color: green;
+      }
+      #e6 {
+        @apply --m6;
+      }
     </style>
   </head>
   <body>
@@ -57,6 +65,7 @@
     <div class="a b" id="e3">This text should be green.</div>
     <div class="c d" id="e4">This text should be green.</div>
     <div id="e5">This text should be green.</div>
+    <div id="e6">This text should be green.</div>
   <script>
     test(() => {
       let target = document.getElementById('e1');
@@ -82,6 +91,11 @@
       let target = document.getElementById('e5');
       assert_equals(getComputedStyle(target).color, 'rgb(0, 128, 0)');
     }, '@contents is ignored if there is no @contents parameter');
+
+    test(() => {
+      let target = document.getElementById('e6');
+      assert_equals(getComputedStyle(target).color, 'rgb(0, 128, 0)');
+    }, 'Empty @contents block is allowed, but does nothing');
   </script>
   </body>
 </html>
diff --git a/tests/wpt/tests/css/css-mixins/dashed-function-eval.html b/tests/wpt/tests/css/css-mixins/dashed-function-eval.html
index 872180d8997..a2ac2ec8674 100644
--- a/tests/wpt/tests/css/css-mixins/dashed-function-eval.html
+++ b/tests/wpt/tests/css/css-mixins/dashed-function-eval.html
@@ -1161,6 +1161,20 @@
   </style>
 </template>
 
+<!-- https://github.com/w3c/csswg-drafts/issues/10443 -->
+<template data-name="Local with the revert-rule keyword">
+  <style>
+    @function --f() {
+      --x: revert-rule;
+      result: var(--x, PASS);
+    }
+    #target {
+      --actual: --f();
+      --expected: PASS;
+    }
+  </style>
+</template>
+
 <!-- Keywords in 'result' descriptor -->
 
 <template data-name="initial keyword left unresolved on result descriptor">
@@ -1244,6 +1258,23 @@
   </style>
 </template>
 
+<!-- https://github.com/w3c/csswg-drafts/issues/10443 -->
+<template data-name="revert-rule keyword left unresolved on result descriptor">
+  <style>
+    @function --f() {
+      result: revert-rule;
+    }
+    #target {
+      --tmp: PASS;
+    }
+    #target {
+      --tmp: --f();
+      --actual: var(--tmp, FAIL);
+      --expected: PASS;
+    }
+  </style>
+</template>
+
 <template data-name="Keyword can be returned from function into local variable">
   <style>
     @function --f() {
diff --git a/tests/wpt/tests/css/css-mixins/function-shadow-container.html b/tests/wpt/tests/css/css-mixins/function-shadow-container.html
index 6d32126cf6e..ee01897aea4 100644
--- a/tests/wpt/tests/css/css-mixins/function-shadow-container.html
+++ b/tests/wpt/tests/css/css-mixins/function-shadow-container.html
@@ -28,7 +28,7 @@
   </template>
 </div>
 
-<div data-name="::part() can not see inner named containers">
+<div data-name="::part() can see inner named containers">
   <template shadowrootmode=open>
     <style>
       @function --b() {
@@ -41,7 +41,7 @@
       }
       ::part(target) {
         --actual: --b();
-        --expected: 10px;
+        --expected: 5px;
       }
       .container {
         container: --cont / size;
@@ -104,7 +104,7 @@
           }
           ::slotted(#target) {
             --actual: --b() --c();
-            --expected: 10px 5px;
+            --expected: 5px 5px;
           }
         </style>
         <div class=container>
diff --git a/tests/wpt/tests/css/css-nesting/nesting-revert-rule.tentative.html b/tests/wpt/tests/css/css-nesting/nesting-revert-rule.tentative.html
new file mode 100644
index 00000000000..b78c0810e0c
--- /dev/null
+++ b/tests/wpt/tests/css/css-nesting/nesting-revert-rule.tentative.html
@@ -0,0 +1,90 @@
+<!DOCTYPE html>
+<title>The revert-rule keyword: interaction with nesting</title>
+<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/10443">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+
+<style>
+  :root {
+    #test1 {
+      color: green;
+    }
+    #test1 {
+      color: red;
+      color: revert-rule;
+    }
+  }
+</style>
+<div id=test1></div>
+<script>
+  test(() => {
+    assert_true(CSS.supports('color:revert-rule'));
+    assert_equals(getComputedStyle(test1).color, 'rgb(0, 128, 0)')
+  }, 'The revert-rule keyword can revert to a nested rule');
+</script>
+
+
+<style>
+  :root {
+    #test2 {
+      /* CSSNestedDeclarationsRule { */
+        color: green;
+      /* } */
+      & {
+        color: red;
+        color: revert-rule;
+      }
+    }
+  }
+</style>
+<div id=test2></div>
+<script>
+  test(() => {
+    assert_true(CSS.supports('color:revert-rule'));
+    assert_equals(getComputedStyle(test2).color, 'rgb(0, 128, 0)')
+  }, 'The revert-rule keyword can revert to a CSSNestedDeclarationsRule');
+</script>
+
+
+<style>
+  :root {
+    #test3 {
+      /* CSSNestedDeclarationsRule { */
+        color: green;
+      /* } */
+      .something {}
+      /* CSSNestedDeclarationsRule { */
+        color: red;
+        color: revert-rule;
+      /* } */
+    }
+  }
+</style>
+<div id=test3></div>
+<script>
+  test(() => {
+    assert_true(CSS.supports('color:revert-rule'));
+    assert_equals(getComputedStyle(test3).color, 'rgb(0, 128, 0)')
+  }, 'The revert-rule keyword can revert from a CSSNestedDeclarationsRule');
+</script>
+
+
+<style>
+  @scope (#test4) {
+    /* CSSNestedDeclarationsRule { */
+      color: green;
+    /* } */
+  }
+
+  #test4 {
+    color: red;
+    color: revert-rule;
+  }
+</style>
+<div id=test4></div>
+<script>
+  test(() => {
+    assert_true(CSS.supports('color:revert-rule'));
+    assert_equals(getComputedStyle(test4).color, 'rgb(0, 128, 0)')
+  }, 'The revert-rule keyword can revert to scoped declarations');
+</script>
diff --git a/tests/wpt/tests/css/css-position/position-absolute-fit-content-auto-margin.html b/tests/wpt/tests/css/css-position/position-absolute-fit-content-auto-margin.html
new file mode 100644
index 00000000000..081d79eb765
--- /dev/null
+++ b/tests/wpt/tests/css/css-position/position-absolute-fit-content-auto-margin.html
@@ -0,0 +1,96 @@
+<!DOCTYPE html>
+<link rel="author" title="David Shin" href="mailto:dshin@mozilla.com">
+<link rel="help" href="https://drafts.csswg.org/css-position-3/#abspos-auto-size">
+<link rel="help" href="https://drafts.csswg.org/css-position-3/#abspos-margins">
+<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1983756">
+<meta name="assert" content="Checks that automatic margins are computed correctly for size auto abspos boxes.">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/resources/check-layout-th.js"></script>
+<style>
+.container {
+  width: 40px;
+  height: 40px;
+  border: 1px solid;
+  position: relative;
+}
+
+.abspos {
+  inset: 0;
+  margin: auto;
+  background: orange;
+  position: absolute;
+}
+
+:is(.vrl, .vlr) .abspos {
+  writing-mode: horizontal-tb;
+}
+
+.vrl {
+  writing-mode: vertical-rl;
+}
+
+.vlr {
+  writing-mode: vertical-lr;
+}
+
+.content {
+  width: 20px;
+  height: 20px;
+}
+</style>
+<!-- Tests with .container's writing-mode: horizontal-tb. -->
+<template id=outerHtb>
+  <div class=container>
+    <div class=abspos style="align-self: start;" data-offset-y=10 data-expected-height=20><div class=content></div></div>
+    <div class=abspos style="justify-self: start;" data-offset-x=10 data-expected-width=20><div class=content></div></div>
+    <div class=abspos style="display: table;" data-offset-y=10 data-expected-height=20><div class=content></div></div>
+  </div>
+  <div class=container>
+    <div class=abspos style="margin-top: 0; align-self: start;" data-offset-y=0 data-expected-height=20><div class=content></div></div>
+    <div class=abspos style="margin-left: 0; justify-self: start;" data-offset-x=0 data-expected-width=20><div class=content></div></div>
+    <div class=abspos style="margin-top: 0; margin-left: 0; display: table;" data-offset-y=0 data-expected-height=20><div class=content></div></div>
+  </div>
+  <div class=container>
+    <div class=abspos style="margin-bottom: 0; align-self: start;" data-offset-y=20 data-expected-height=20><div class=content></div></div>
+    <div class=abspos style="margin-right: 0; justify-self: start;" data-offset-x=20 data-expected-width=20><div class=content></div></div>
+    <div class=abspos style="margin-bottom: 0; margin-right: 0; display: table;" data-offset-y=20 data-expected-height=20><div class=content></div></div>
+  </div>
+</template>
+<!-- Tests with .abspos' writing-mode: horizontal-tb. -->
+<template id=innerHtb>
+  <div class=container>
+    <div class=abspos style="align-self: start;" data-offset-y=0 data-expected-width=20><div class=content></div></div>
+    <div class=abspos style="justify-self: start;" data-offset-x=0 data-expected-height=20><div class=content></div></div>
+    <div class=abspos style="display: table;" data-offset-y=10 data-expected-width=20><div class=content></div></div>
+  </div>
+  <div class=container>
+    <div class=abspos style="margin-top: 0; align-self: start;" data-offset-y=0 data-expected-width=20><div class=content></div></div>
+    <div class=abspos style="margin-left: 0; justify-self: start;" data-offset-x=0 data-expected-height=20><div class=content></div></div>
+    <div class=abspos style="margin-top: 0; margin-left: 0; display: table;" data-offset-y=0 data-expected-width=20><div class=content></div></div>
+  </div>
+  <div class=container>
+    <div class=abspos style="margin-bottom: 0; align-self: start;" data-offset-y=0 data-expected-width=20><div class=content></div></div>
+    <div class=abspos style="margin-right: 0; justify-self: start;" data-offset-x=0 data-expected-height=20><div class=content></div></div>
+    <div class=abspos style="margin-bottom: 0; margin-right: 0; display: table;" data-offset-y=20 data-expected-width=20><div class=content></div></div>
+  </div>
+</template>
+<div id=tests></div>
+<div id=log></div>
+</body>
+<script>
+function add_tests(template, query, for_each_queried) {
+  const t = template.content.cloneNode(true);
+  for(const q of t.querySelectorAll(query)) {
+    for_each_queried(q);
+  }
+  tests.append(t);
+}
+add_tests(outerHtb, '.abspos', a => {});
+add_tests(outerHtb, '.abspos', a => a.classList.add('vlr'));
+add_tests(outerHtb, '.abspos', a => a.classList.add('vrl'));
+add_tests(innerHtb, '.container', a => a.classList.add('vlr'));
+add_tests(innerHtb, '.container', a => a.classList.add('vrl'));
+document.body.offsetTop;
+checkLayout('#tests .abspos')
+</script>
diff --git a/tests/wpt/tests/css/css-pseudo/before-as-flex-container-ref.html b/tests/wpt/tests/css/css-pseudo/before-as-flex-container-ref.html
new file mode 100644
index 00000000000..8b8fd28b3f3
--- /dev/null
+++ b/tests/wpt/tests/css/css-pseudo/before-as-flex-container-ref.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<html>
+<head><meta charset="utf-8">
+<meta name="viewport" content="width=device-width">
+<title>CSS Test: ::before pseudo-element as a flex container - Reference</title>
+<link rel="author" title="Deepith N" href="mailto:deepithdeekshith@gmail.com">
+
+<style>
+  div {
+    width: 200px;
+    height: 100px;
+    background: green;
+    display: flex;
+    justify-content: space-between;
+  }
+</style>
+</head>
+<body>
+<div>
+  <span>A</span>
+  <span>B</span>
+</div>
+</body>
+</html>
\ No newline at end of file
diff --git a/tests/wpt/tests/css/css-pseudo/before-as-flex-container.html b/tests/wpt/tests/css/css-pseudo/before-as-flex-container.html
new file mode 100644
index 00000000000..d4cd4dd43a3
--- /dev/null
+++ b/tests/wpt/tests/css/css-pseudo/before-as-flex-container.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<html lang="en">
+<title>CSS Test: ::before pseudo-element as a flex container</title>
+<link rel="author" title="Deepith N" href="mailto:deekshithdeepith@gmail.com">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+<link rel="help" href="https://www.w3.org/TR/css-pseudo-4/#generated-content">
+<link rel="match" href="before-as-flex-container-ref.html">
+
+<style>
+  div {
+    width: 200px;
+    height: 100px;
+    background: red; /* This will show up if the test fails */
+  }
+
+  div::before {
+    content: "A B"; /* Two "words" to become flex items */
+    display: flex;
+    justify-content: space-between; /* Pushes "A" and "B" to the edges */
+    width: 200px;
+    height: 100px;
+    background: green; /* This should cover the red background */
+  }
+</style>
+
+<div></div>
\ No newline at end of file
diff --git a/tests/wpt/tests/css/css-pseudo/reference/svg-text-selection-ref.html b/tests/wpt/tests/css/css-pseudo/reference/svg-text-selection-ref.html
new file mode 100644
index 00000000000..440a789f546
--- /dev/null
+++ b/tests/wpt/tests/css/css-pseudo/reference/svg-text-selection-ref.html
@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<title>CSS Pseudo-Elements Test: ::selection transparent background for SVG ref</title>
+<link rel="author" title="Stephen Chenney" href="mailto:schenney@chromium.org">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+  div {
+    font: 16px Ahem;
+  }
+  text {
+    fill: lightgreen;
+    stroke: darkgreen;
+  }
+</style>
+<div>
+  <svg width="100" height="60">
+    <text x="20" y="20">Text</text>
+  </svg>
+</div>
diff --git a/tests/wpt/tests/css/css-pseudo/reference/svg-text-selection-shadow-ref.html b/tests/wpt/tests/css/css-pseudo/reference/svg-text-selection-shadow-ref.html
new file mode 100644
index 00000000000..f69752a94bb
--- /dev/null
+++ b/tests/wpt/tests/css/css-pseudo/reference/svg-text-selection-shadow-ref.html
@@ -0,0 +1,17 @@
+<!DOCTYPE html>
+<title>CSS Pseudo-Elements Test: ::selection transparent background for SVG ref</title>
+<link rel="author" title="Stephen Chenney" href="mailto:schenney@chromium.org">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+  div {
+    font: 16px Ahem;
+  }
+  text {
+    text-shadow: 5px 5px 0px green, 3px 3px 0px blue;
+  }
+</style>
+<div>
+  <svg width="100" height="60">
+    <text x="20" y="20">Text</text>
+  </svg>
+</div>
diff --git a/tests/wpt/tests/css/css-pseudo/svg-text-selection-fill-only.html b/tests/wpt/tests/css/css-pseudo/svg-text-selection-fill-only.html
new file mode 100644
index 00000000000..719e7bd6362
--- /dev/null
+++ b/tests/wpt/tests/css/css-pseudo/svg-text-selection-fill-only.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<title>CSS Pseudo-Elements Test: ::selection with fill only for SVG </title>
+<link rel="author" title="Stephen Chenney" href="mailto:schenney@chromium.org">
+<link rel="help" href="https://drafts.csswg.org/css-pseudo/#selectordef-selection">
+<meta name="assert" content="Verify that ::selection with only fill specified uses selection fill and originating stroke.">
+<link rel="match" href="reference/svg-text-selection-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<script src="support/selections.js"></script>
+<style>
+  div {
+    font: 16px Ahem;
+  }
+  text {
+    fill: red;
+    stroke: darkgreen;
+  }
+  ::selection {
+    background-color: transparent; /* Avoid default background color. */
+    fill: lightgreen;
+  }
+</style>
+<div>
+  <svg width="100" height="60">
+    <text x="20" y="20">Text to select</text>
+  </svg>
+</div>
+<script>selectNodeContents(document.querySelector("div"));</script>
\ No newline at end of file
diff --git a/tests/wpt/tests/css/css-pseudo/svg-text-selection-shadow.html b/tests/wpt/tests/css/css-pseudo/svg-text-selection-shadow.html
new file mode 100644
index 00000000000..8e2622efeda
--- /dev/null
+++ b/tests/wpt/tests/css/css-pseudo/svg-text-selection-shadow.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<title>CSS Pseudo-Elements Test: ::selection with shadows for SVG </title>
+<link rel="author" title="Stephen Chenney" href="mailto:schenney@chromium.org">
+<link rel="help" href="https://drafts.csswg.org/css-pseudo/#selectordef-selection">
+<meta name="assert" content="Verify that ::selection with shadow paints behind originating shadow in SVG text.">
+<link rel="match" href="reference/svg-text-selection-shadow-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<script src="support/selections.js"></script>
+<style>
+  div {
+    font: 16px Ahem;
+  }
+  text {
+    text-shadow: 5px 5px 0px green;
+  }
+  ::selection {
+    background-color: transparent;
+    text-shadow: 3px 3px 0px blue;
+  }
+</style>
+<div>
+  <svg width="100" height="60">
+    <text x="20" y="20">Text to select</text>
+  </svg>
+</div>
+<script>selectNodeContents(document.querySelector("div"));</script>
\ No newline at end of file
diff --git a/tests/wpt/tests/css/css-pseudo/svg-text-selection-stroke-only.html b/tests/wpt/tests/css/css-pseudo/svg-text-selection-stroke-only.html
new file mode 100644
index 00000000000..2d73fa45c94
--- /dev/null
+++ b/tests/wpt/tests/css/css-pseudo/svg-text-selection-stroke-only.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<title>CSS Pseudo-Elements Test: ::selection with stroke only for SVG </title>
+<link rel="author" title="Stephen Chenney" href="mailto:schenney@chromium.org">
+<link rel="help" href="https://drafts.csswg.org/css-pseudo/#selectordef-selection">
+<meta name="assert" content="Verify that ::selection with only stroke specified uses selection stroke and originating fill.">
+<link rel="match" href="reference/svg-text-selection-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<script src="support/selections.js"></script>
+<style>
+  div {
+    font: 16px Ahem;
+  }
+  text {
+    fill: lightgreen;
+    stroke: red;
+  }
+  ::selection {
+    background-color: transparent; /* Avoid default background color. */
+    stroke: darkgreen;
+  }
+</style>
+<div>
+  <svg width="100" height="60">
+    <text x="20" y="20">Text to select</text>
+  </svg>
+</div>
+<script>selectNodeContents(document.querySelector("div"));</script>
\ No newline at end of file
diff --git a/tests/wpt/tests/css/css-pseudo/svg-text-selection-transparent-background.html b/tests/wpt/tests/css/css-pseudo/svg-text-selection-transparent-background.html
new file mode 100644
index 00000000000..992be58e772
--- /dev/null
+++ b/tests/wpt/tests/css/css-pseudo/svg-text-selection-transparent-background.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<title>CSS Pseudo-Elements Test: ::selection transparent background for SVG </title>
+<link rel="author" title="Stephen Chenney" href="mailto:schenney@chromium.org">
+<link rel="help" href="https://drafts.csswg.org/css-pseudo/#selectordef-selection">
+<meta name="assert" content="Verify that ::selection with transparent background color does not modify the foreground in SVG text.">
+<link rel="match" href="reference/svg-text-selection-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<script src="support/selections.js"></script>
+<style>
+  div {
+    font: 16px Ahem;
+  }
+  text {
+    fill: lightgreen;
+    stroke: darkgreen;
+  }
+  ::selection {
+    background-color: transparent;
+  }
+</style>
+<div>
+  <svg width="100" height="60">
+    <text x="20" y="20">Text to select</text>
+  </svg>
+</div>
+<script>selectNodeContents(document.querySelector("div"));</script>
\ No newline at end of file
diff --git a/tests/wpt/tests/css/css-text-decor/parsing/text-decoration-trim-computed.html b/tests/wpt/tests/css/css-text-decor/parsing/text-decoration-trim-computed.html
new file mode 100644
index 00000000000..4d4094d4553
--- /dev/null
+++ b/tests/wpt/tests/css/css-text-decor/parsing/text-decoration-trim-computed.html
@@ -0,0 +1,32 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Text Decoration Test: Computed value of text-decoration-trim</title>
+<link rel="author" title="Jonathan Kew" href="mailto:jkew@mozilla.com">
+<link rel="help" href="https://drafts.csswg.org/css-text-decor-4/#propdef-text-decoration-trim">
+<meta name="assert" content="text-decoration-trim supports the full grammar '<length>{1,2} | auto'.">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/computed-testcommon.js"></script>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+#target { font: 20px Ahem; }
+</style>
+<body>
+<div id="target"></div>
+<script>
+// Ensure Ahem is loaded so that the 'ch' unit resolves as expected;
+// without this the load may be asynchronous, and the value will initially
+// resolve against the default font instead.
+document.fonts.load("20px Ahem").then(() => {
+  test_computed_value("text-decoration-trim", "0px");
+  test_computed_value("text-decoration-trim", "0", "0px");
+  test_computed_value("text-decoration-trim", "0px 0px", "0px");
+  test_computed_value("text-decoration-trim", "0.5em", "10px");
+  test_computed_value("text-decoration-trim", "-1em", "-20px");
+  test_computed_value("text-decoration-trim", "-1ch -1ch", "-20px");
+  test_computed_value("text-decoration-trim", "1px 2px");
+  test_computed_value("text-decoration-trim", "1ch -1ch", "20px -20px");
+  test_computed_value("text-decoration-trim", "calc(1em / 4) calc(-1ch)", "5px -20px");
+  test_computed_value("text-decoration-trim", "auto");
+});
+</script>
diff --git a/tests/wpt/tests/css/css-text-decor/parsing/text-decoration-trim-invalid.html b/tests/wpt/tests/css/css-text-decor/parsing/text-decoration-trim-invalid.html
new file mode 100644
index 00000000000..8038fe334e9
--- /dev/null
+++ b/tests/wpt/tests/css/css-text-decor/parsing/text-decoration-trim-invalid.html
@@ -0,0 +1,20 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Text Decoration Test: Parsing text-decoration-trim with invalid values</title>
+<link rel="author" title="Jonathan Kew" href="mailto:jkew@mozilla.com">
+<link rel="help" href="https://drafts.csswg.org/css-text-decor-4/#propdef-text-decoration-trim">
+<meta name="assert" content="text-decoration-trim supports the full grammar '<length>{1,2} | auto'.">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/parsing-testcommon.js"></script>
+<script>
+test_invalid_value("text-decoration-trim", "none");
+test_invalid_value("text-decoration-trim", "normal");
+test_invalid_value("text-decoration-trim", "auto auto");
+test_invalid_value("text-decoration-trim", "0 auto");
+test_invalid_value("text-decoration-trim", "auto none");
+test_invalid_value("text-decoration-trim", "1px auto");
+test_invalid_value("text-decoration-trim", "auto -1px");
+test_invalid_value("text-decoration-trim", "10%");
+test_invalid_value("text-decoration-trim", "45deg");
+</script>
diff --git a/tests/wpt/tests/css/css-text-decor/parsing/text-decoration-trim-valid.html b/tests/wpt/tests/css/css-text-decor/parsing/text-decoration-trim-valid.html
new file mode 100644
index 00000000000..1f730192612
--- /dev/null
+++ b/tests/wpt/tests/css/css-text-decor/parsing/text-decoration-trim-valid.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Text Decoration Test: Parsing text-decoration-trim with valid values</title>
+<link rel="author" title="Jonathan Kew" href="mailto:jkew@mozilla.com">
+<link rel="help" href="https://drafts.csswg.org/css-text-decor-4/#propdef-text-decoration-trim">
+<meta name="assert" content="text-decoration-trim supports the full grammar '<length>{1,2} | auto'.">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/parsing-testcommon.js"></script>
+<script>
+test_valid_value("text-decoration-trim", "0px");
+test_valid_value("text-decoration-trim", "0", "0px");
+test_valid_value("text-decoration-trim", "0px 0px", "0px");
+test_valid_value("text-decoration-trim", "0.5em");
+test_valid_value("text-decoration-trim", "-1em");
+test_valid_value("text-decoration-trim", "-1ch -1ch", "-1ch");
+test_valid_value("text-decoration-trim", "1px 2px");
+test_valid_value("text-decoration-trim", "1ch -1ch");
+test_valid_value("text-decoration-trim", "calc(1em / 4) calc(-1ch)", "calc(0.25em) calc(-1ch)");
+test_valid_value("text-decoration-trim", "auto");
+</script>
diff --git a/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-001-ref.html b/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-001-ref.html
new file mode 100644
index 00000000000..61f512fd3de
--- /dev/null
+++ b/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-001-ref.html
@@ -0,0 +1,34 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+
+<title>CSS Text Decoration 4: text-decoration-trim</title>
+
+<link rel="help" href="https://drafts.csswg.org/css-text-decor-4/#propdef-text-decoration-trim">
+<link rel="author" title="Jonathan Kew" href="mailto:jkew@mozilla.com">
+
+<style>
+body {
+  background: white;
+  color: black;
+}
+div {
+  position: relative;
+}
+h1 {
+  position: absolute;
+}
+u {
+  text-decoration-color: black;
+}
+</style>
+
+<p>The underline for "brown" should be offset by 10px to the right:</p>
+
+<div>
+  <h1>
+    the quick brown fox
+  </h1>
+  <h1 style="left: 10px; color: transparent">
+    the quick <u>brown</u> fox
+  </h1>
+</div>
diff --git a/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-002-ref.html b/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-002-ref.html
new file mode 100644
index 00000000000..982c5c3bd7b
--- /dev/null
+++ b/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-002-ref.html
@@ -0,0 +1,37 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+
+<title>CSS Text Decoration 4: text-decoration-trim</title>
+
+<link rel="help" href="https://drafts.csswg.org/css-text-decor-4/#propdef-text-decoration-trim">
+<link rel="author" title="Jonathan Kew" href="mailto:jkew@mozilla.com">
+
+<style>
+body {
+  background: white;
+  color: black;
+}
+div {
+  position: relative;
+}
+h1 {
+  position: absolute;
+}
+u {
+  text-decoration-color: black;
+}
+</style>
+
+<p>The underline for "brown" should be extended by 0.5em at each end:</p>
+
+<div>
+  <h1>
+    the quick brown fox
+  </h1>
+  <h1 style="left: .5em; color: transparent">
+    the quick <u>brown</u> fox
+  </h1>
+  <h1 style="left: -.5em; color: transparent">
+    the quick <u>brown</u> fox
+  </h1>
+</div>
diff --git a/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-003-ref.html b/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-003-ref.html
new file mode 100644
index 00000000000..04041b9dc45
--- /dev/null
+++ b/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-003-ref.html
@@ -0,0 +1,42 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+
+<title>CSS Text Decoration 4: text-decoration-trim</title>
+
+<link rel="help" href="https://drafts.csswg.org/css-text-decor-4/#propdef-text-decoration-trim">
+<link rel="author" title="Jonathan Kew" href="mailto:jkew@mozilla.com">
+
+<style>
+body {
+  background: white;
+  color: black;
+}
+div {
+  position: relative;
+}
+h1 {
+  position: absolute;
+}
+span {
+  display: inline-block;
+  position: relative;
+}
+u {
+  display: inline-block;
+  position: absolute;
+  text-decoration-color: black;
+  width: calc(100% - 0.5em);
+  overflow: clip;
+}
+</style>
+
+<p>The underline for "brown" should be trimmed by 0.25em at each end:</p>
+
+<div>
+  <h1>
+    the quick brown fox
+  </h1>
+  <h1 style="left: .25em; color: transparent">
+    the quick <span><u>brown</u>brown</span> fox
+  </h1>
+</div>
diff --git a/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-004-ref.html b/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-004-ref.html
new file mode 100644
index 00000000000..031f1ba48ac
--- /dev/null
+++ b/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-004-ref.html
@@ -0,0 +1,40 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+
+<title>CSS Text Decoration 4: text-decoration-trim</title>
+
+<link rel="help" href="https://drafts.csswg.org/css-text-decor-4/#propdef-text-decoration-trim">
+<link rel="author" title="Jonathan Kew" href="mailto:jkew@mozilla.com">
+
+<style>
+body {
+  background: white;
+  color: black;
+}
+div {
+  position: relative;
+}
+h1 {
+  position: absolute;
+}
+u {
+  text-decoration-color: black;
+}
+h1 {
+  width: 15ch;
+}
+</style>
+
+<p>The underline for "ultra-quick brown" should be extended by .25em at each end, but not at the line-break:</p>
+
+<div>
+  <h1>
+    the <u>ultra-quick brown</u> fox
+  </h1>
+  <h1 style="left: -.25em; color: transparent">
+    the <u>ultra</u>-quick brown fox
+  </h1>
+  <h1 style="left: .25em; color: transparent">
+    the ultra-quick <u>brown</u> fox
+  </h1>
+</div>
diff --git a/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-005-ref.html b/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-005-ref.html
new file mode 100644
index 00000000000..6ce19dce5d5
--- /dev/null
+++ b/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-005-ref.html
@@ -0,0 +1,38 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+
+<title>CSS Text Decoration 4: text-decoration-trim</title>
+
+<link rel="help" href="https://drafts.csswg.org/css-text-decor-4/#propdef-text-decoration-trim">
+<link rel="author" title="Jonathan Kew" href="mailto:jkew@mozilla.com">
+
+<style>
+body {
+  background: white;
+  color: black;
+}
+div {
+  position: relative;
+}
+h1 {
+  position: absolute;
+}
+u {
+  text-decoration-color: black;
+}
+</style>
+
+<p>The underline for "ultra-quick brown" should be extended by .25em at each end;
+super- and sub-scripts should be unaffected:</p>
+
+<div>
+  <h1>
+    the <u>ultra-<sup>quick</sup> b<sub>row</sub>n</u> fox
+  </h1>
+  <h1 style="left: -.25em; color: transparent">
+    the <u>ultra</u>-<sup>quick</sup> b<sub>row</sub>n fox
+  </h1>
+  <h1 style="left: .25em; color: transparent">
+    the ultra-<sup>quick</sup> b<sub>row</sub><u>n</u> fox
+  </h1>
+</div>
diff --git a/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-006-ref.html b/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-006-ref.html
new file mode 100644
index 00000000000..dcc1d29d61d
--- /dev/null
+++ b/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-006-ref.html
@@ -0,0 +1,38 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+
+<title>CSS Text Decoration 4: text-decoration-trim</title>
+
+<link rel="help" href="https://drafts.csswg.org/css-text-decor-4/#propdef-text-decoration-trim">
+<link rel="author" title="Jonathan Kew" href="mailto:jkew@mozilla.com">
+
+<style>
+body {
+  background: white;
+  color: black;
+}
+div {
+  position: relative;
+}
+h1 {
+  position: absolute;
+}
+u {
+  text-decoration-color: black;
+}
+</style>
+
+<p>The underline for "ultra-quick brown" should be trimmed by .25em at each end;
+super- and sub-scripts should be unaffected:</p>
+
+<div>
+  <h1>
+    the u<u>ltra-<sup>quick</sup> b<sub>ro</sub>w</u>n fox
+  </h1>
+  <h1 style="left: .25em; color: transparent">
+    the <u>ultra</u>-<sup>quick</sup> b<sub>ro</sub>wn fox
+  </h1>
+  <h1 style="left: -.25em; color: transparent">
+    the ultra-<sup>quick</sup> b<sub>ro</sub>w<u>n</u> fox
+  </h1>
+</div>
diff --git a/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-007-ref.html b/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-007-ref.html
new file mode 100644
index 00000000000..1b58278a58e
--- /dev/null
+++ b/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-007-ref.html
@@ -0,0 +1,35 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+
+<title>CSS Text Decoration 4: text-decoration-trim</title>
+
+<link rel="help" href="https://drafts.csswg.org/css-text-decor-4/#propdef-text-decoration-trim">
+<link rel="author" title="Jonathan Kew" href="mailto:jkew@mozilla.com">
+
+<style>
+body {
+  background: white;
+  color: black;
+  font-family: times new roman, serif;
+}
+div {
+  position: relative;
+}
+h1 {
+  position: absolute;
+}
+u {
+  text-decoration-color: black;
+}
+</style>
+
+<p>The underline for "جلدي  brown" should be offset by 10px to the right, and not interrupted at the direction boundary:</p>
+
+<div>
+  <h1 style="text-underline-offset: 10px;">
+    the جلدي brown fox
+  </h1>
+  <h1 style="left: 10px; color: transparent; text-underline-offset: 10px;">
+    the <u>جلدي brown</u> fox
+  </h1>
+</div>
diff --git a/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-008-ref.html b/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-008-ref.html
new file mode 100644
index 00000000000..7d6d9268fe7
--- /dev/null
+++ b/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-008-ref.html
@@ -0,0 +1,45 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+
+<title>CSS Text Decoration 4: text-decoration-trim</title>
+
+<link rel="help" href="https://drafts.csswg.org/css-text-decor-4/#propdef-text-decoration-trim">
+<link rel="author" title="Jonathan Kew" href="mailto:jkew@mozilla.com">
+
+<style>
+body {
+  background: white;
+  color: black;
+  font-family: times new roman, serif;
+}
+div {
+  position: relative;
+}
+h1 {
+  position: absolute;
+}
+span {
+  display: inline-block;
+  position: relative;
+}
+u {
+  display: inline-block;
+  position: absolute;
+  text-decoration-color: black;
+  text-underline-offset: 10px;
+  width: calc(100% - 20px);
+  text-wrap-mode: nowrap;
+  overflow-x: clip;
+}
+</style>
+
+<p>The underline for "quick براؤن" should be trimmed by 10px at each end, and not interrupted at the direction boundary:</p>
+
+<div>
+  <h1>
+    the quick براؤن fox
+  </h1>
+  <h1 style="left: 10px; color: transparent">
+    the <span><u>quick براؤن</u>quick براؤن</span> fox
+  </h1>
+</div>
diff --git a/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-009-ref.html b/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-009-ref.html
new file mode 100644
index 00000000000..22ee9ff3aef
--- /dev/null
+++ b/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-009-ref.html
@@ -0,0 +1,51 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+
+<title>CSS Text Decoration 4: text-decoration-trim</title>
+
+<link rel="help" href="https://drafts.csswg.org/css-text-decor-4/#propdef-text-decoration-trim">
+<link rel="author" title="Jonathan Kew" href="mailto:jkew@mozilla.com">
+
+<style>
+body {
+  background: white;
+  color: black;
+}
+div {
+  position: relative;
+}
+h1 {
+  position: absolute;
+}
+u {
+  text-decoration-color: black;
+}
+u.green {
+  text-decoration-color: green;
+  text-underline-offset: 10px;
+}
+</style>
+
+<p>The underline for "ultra-quick brown" should be trimmed by .25em at each end;
+the additional green underline for "quick" should be extended by .5em at each end:</p>
+
+<div>
+  <h1>
+    the ultra<u>-quick</u> brown fox
+  </h1>
+  <h1 style="left: .25em; color: transparent">
+    the <u>ultra</u>-quick brown fox
+  </h1>
+  <h1 style="left: -.25em; color: transparent">
+    the ultra-quick<u> brown</u> fox
+  </h1>
+  <h1 style="color: transparent">
+    the ultra-<u class="green">quick</u> brown fox
+  </h1>
+  <h1 style="left: -.5em; color: transparent">
+    the ultra-<u class="green">quick</u> brown fox
+  </h1>
+  <h1 style="left: .5em; color: transparent">
+    the ultra-<u class="green">quick</u> brown fox
+  </h1>
+</div>
diff --git a/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-010-notref.html b/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-010-notref.html
new file mode 100644
index 00000000000..aa8cf5a02c7
--- /dev/null
+++ b/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-010-notref.html
@@ -0,0 +1,33 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+
+<title>CSS Text Decoration 4: text-decoration-trim</title>
+
+<link rel="help" href="https://drafts.csswg.org/css-text-decor-4/#propdef-text-decoration-trim">
+<link rel="author" title="Jonathan Kew" href="mailto:jkew@mozilla.com">
+
+<style>
+body {
+  background: white;
+  color: black;
+}
+div {
+  position: relative;
+}
+h1 {
+  position: absolute;
+}
+u {
+  text-decoration-color: blue;
+  text-decoration-trim: auto;
+  text-underline-position: under;
+}
+</style>
+
+<p>The underlines for "石井" and for "艾俐俐" should be visibly separate:</p>
+
+<div>
+  <h1 lang="zh">
+    <u>石井艾俐俐</u>
+  </h1>
+</div>
diff --git a/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-011-ref.html b/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-011-ref.html
new file mode 100644
index 00000000000..9809e6e80a3
--- /dev/null
+++ b/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-011-ref.html
@@ -0,0 +1,64 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+
+<title>CSS Text Decoration 4: text-decoration-trim</title>
+
+<link rel="help" href="https://drafts.csswg.org/css-text-decor-4/#propdef-text-decoration-trim">
+<link rel="author" title="Jonathan Kew" href="mailto:jkew@mozilla.com">
+
+<style>
+body {
+  background: white;
+  color: black;
+  font-family: times new roman, serif;
+}
+div {
+  position: relative;
+  margin-left: 10px;
+}
+h1 {
+  position: absolute;
+  line-height: 2;
+  width: 10em;
+}
+u.a {
+  text-decoration-color: blue;
+  text-underline-offset: 20px;
+}
+u.b {
+  text-decoration-color: green;
+  text-underline-offset: 20px;
+}
+span {
+  display: inline-block;
+  position: relative;
+}
+span u.a, span u.b {
+  display: inline-block;
+  width: calc(100% - 10px);
+  overflow-x: clip;
+  position: absolute;
+  left: 0;
+}
+span u.a2 {
+  left: auto;
+  right: 0;
+}
+span u.b2 {
+  width: 100%;
+}
+span u.b3 {
+  width: 100%;
+  left: -10px;
+}
+</style>
+
+<p>The underline of the first phrase should be trimmed by 10px at both ends;
+the underline of the second should be offset by 10px to the left at both start and end:</p>
+
+<div lang="ar">
+  <h1 dir="rtl">صِف<u class="a"> خَلقَ خَودِ كَمِثلِ الشَمسِ إِذ </u>بَزَغَت —<br> يَحظى<u class="b"> الضَجيعُ بِها نَجلاءَ </u>مِعطارِ</h1>
+  <h1 dir="rtl" style="color: transparent"><span><u class="a">صِف</u>صِف</span> خَلقَ خَودِ كَمِثلِ الشَمسِ إِذ <span><u class="a a2">بَزَغَت</u>بَزَغَت</span></h1>
+  <h1 dir="rtl" style="color: transparent">صِف خَلقَ خَودِ كَمِثلِ الشَمسِ إِذ بَزَغَت —<br>
+    <span><u class="b">يَحظى</u>يَحظى</span> الضَجيعُ بِها نَجلاءَ <span><u class="b b2">مِعطارِ</u><u class="b b3">مِعطارِ</u>مِعطارِ</span></h1>
+</div>
diff --git a/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-012-ref.html b/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-012-ref.html
new file mode 100644
index 00000000000..a2d50023449
--- /dev/null
+++ b/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-012-ref.html
@@ -0,0 +1,37 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+
+<title>CSS Text Decoration 4: text-decoration-trim</title>
+
+<link rel="help" href="https://drafts.csswg.org/css-text-decor-4/#propdef-text-decoration-trim">
+<link rel="author" title="Jonathan Kew" href="mailto:jkew@mozilla.com">
+
+<style>
+body {
+  background: white;
+  color: black;
+}
+div {
+  position: relative;
+  width: 10em;
+  height: 20em;
+  writing-mode: vertical-rl;
+}
+h1 {
+  position: absolute;
+}
+u {
+  text-decoration-color: black;
+}
+</style>
+
+<p>The underline for "brown" should be offset by 10px downwards:</p>
+
+<div>
+  <h1>
+    the quick brown fox
+  </h1>
+  <h1 style="top: 10px; color: transparent">
+    the quick <u>brown</u> fox
+  </h1>
+</div>
diff --git a/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-013-ref.html b/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-013-ref.html
new file mode 100644
index 00000000000..bc92022bf1b
--- /dev/null
+++ b/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-013-ref.html
@@ -0,0 +1,37 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+
+<title>CSS Text Decoration 4: text-decoration-trim</title>
+
+<link rel="help" href="https://drafts.csswg.org/css-text-decor-4/#propdef-text-decoration-trim">
+<link rel="author" title="Jonathan Kew" href="mailto:jkew@mozilla.com">
+
+<style>
+body {
+  background: white;
+  color: black;
+}
+div {
+  position: relative;
+  width: 10em;
+  height: 20em;
+  writing-mode: sideways-lr;
+}
+h1 {
+  position: absolute;
+}
+u {
+  text-decoration-color: black;
+}
+</style>
+
+<p>The underline for "brown" should be offset by 10px upwards:</p>
+
+<div>
+  <h1>
+    the quick brown fox
+  </h1>
+  <h1 style="bottom: 10px; color: transparent">
+    the quick <u>brown</u> fox
+  </h1>
+</div>
diff --git a/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-014-ref.html b/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-014-ref.html
new file mode 100644
index 00000000000..e7977155101
--- /dev/null
+++ b/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-014-ref.html
@@ -0,0 +1,45 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+
+<title>CSS Text Decoration 4: text-decoration-trim</title>
+
+<link rel="help" href="https://drafts.csswg.org/css-text-decor-4/#propdef-text-decoration-trim">
+<link rel="author" title="Jonathan Kew" href="mailto:jkew@mozilla.com">
+
+<style>
+body {
+  background: white;
+  color: black;
+}
+div {
+  position: relative;
+}
+h1 {
+  position: absolute;
+  font-family: monospace;
+  width: 16ch;
+}
+u {
+  text-decoration-color: black;
+}
+</style>
+
+<p>The underline for "ultra-quick brown" should be extended by 0.5ch at each end of each fragment:</p>
+
+<div>
+  <h1>
+    the <u>ultra-quick brown</u> fox
+  </h1>
+  <h1 style="left: -.5ch; color: transparent">
+    the <u>ul</u>tra-quick brown fox
+  </h1>
+  <h1 style="left: .5ch; color: transparent">
+    the ultra-qui<u>ck</u> brown fox
+  </h1>
+  <h1 style="left: -.5ch; color: transparent">
+    the ultra-quick <u>brown</u> fox
+  </h1>
+  <h1 style="left: .5ch; color: transparent">
+    the ultra-quick <u>brown</u> fox
+  </h1>
+</div>
diff --git a/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-015-ref.html b/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-015-ref.html
new file mode 100644
index 00000000000..e2a146c3abc
--- /dev/null
+++ b/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-015-ref.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+
+<title>CSS Text Decoration 4: text-decoration-trim</title>
+
+<link rel="help" href="https://drafts.csswg.org/css-text-decor-4/#propdef-text-decoration-trim">
+<link rel="author" title="Jonathan Kew" href="mailto:jkew@mozilla.com">
+
+<style>
+body {
+  background: white;
+  color: black;
+}
+div {
+  position: relative;
+}
+h1 {
+  position: absolute;
+}
+</style>
+
+<p>The underline for "brown" should be entirely trimmed away:</p>
+
+<div>
+  <h1>
+    the quick brown fox
+  </h1>
+</div>
diff --git a/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-016-ref.html b/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-016-ref.html
new file mode 100644
index 00000000000..13228ba7dba
--- /dev/null
+++ b/tests/wpt/tests/css/css-text-decor/reference/text-decoration-trim-016-ref.html
@@ -0,0 +1,37 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+
+<title>CSS Text Decoration 4: text-decoration-trim</title>
+
+<link rel="help" href="https://drafts.csswg.org/css-text-decor-4/#propdef-text-decoration-trim">
+<link rel="author" title="Jonathan Kew" href="mailto:jkew@mozilla.com">
+
+<style>
+body {
+  background: white;
+  color: black;
+}
+div {
+  position: relative;
+}
+h1 {
+  position: absolute;
+}
+u {
+  text-decoration-color: black;
+}
+</style>
+
+<p>The underline for "brown" should be offset by 10em to the right, and lengthened by 2em:</p>
+
+<div>
+  <h1>
+    the quick brown fox
+  </h1>
+  <h1 style="left: 10em; color: transparent">
+    the quick <u>brown</u> fox
+  </h1>
+  <h1 style="left: 12em; color: transparent">
+    the quick <u>brown</u> fox
+  </h1>
+</div>
diff --git a/tests/wpt/tests/css/css-text-decor/text-decoration-trim-001.html b/tests/wpt/tests/css/css-text-decor/text-decoration-trim-001.html
new file mode 100644
index 00000000000..4ffc0ad7d92
--- /dev/null
+++ b/tests/wpt/tests/css/css-text-decor/text-decoration-trim-001.html
@@ -0,0 +1,34 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+
+<title>CSS Text Decoration 4: text-decoration-trim</title>
+
+<link rel="help" href="https://drafts.csswg.org/css-text-decor-4/#propdef-text-decoration-trim">
+<link rel="author" title="Jonathan Kew" href="mailto:jkew@mozilla.com">
+
+<link rel="match" href="reference/text-decoration-trim-001-ref.html">
+
+<style>
+body {
+  background: white;
+  color: black;
+}
+div {
+  position: relative;
+}
+h1 {
+  position: absolute;
+}
+u {
+  text-decoration-color: black;
+  text-decoration-trim: 10px -10px;
+}
+</style>
+
+<p>The underline for "brown" should be offset by 10px to the right:</p>
+
+<div>
+  <h1>
+    the quick <u>brown</u> fox
+  </h1>
+</div>
diff --git a/tests/wpt/tests/css/css-text-decor/text-decoration-trim-002.html b/tests/wpt/tests/css/css-text-decor/text-decoration-trim-002.html
new file mode 100644
index 00000000000..b24fb02d364
--- /dev/null
+++ b/tests/wpt/tests/css/css-text-decor/text-decoration-trim-002.html
@@ -0,0 +1,34 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+
+<title>CSS Text Decoration 4: text-decoration-trim</title>
+
+<link rel="help" href="https://drafts.csswg.org/css-text-decor-4/#propdef-text-decoration-trim">
+<link rel="author" title="Jonathan Kew" href="mailto:jkew@mozilla.com">
+
+<link rel="match" href="reference/text-decoration-trim-002-ref.html">
+
+<style>
+body {
+  background: white;
+  color: black;
+}
+div {
+  position: relative;
+}
+h1 {
+  position: absolute;
+}
+u {
+  text-decoration-color: black;
+  text-decoration-trim: -0.5em;
+}
+</style>
+
+<p>The underline for "brown" should be extended by 0.5em at each end:</p>
+
+<div>
+  <h1>
+    the quick <u>brown</u> fox
+  </h1>
+</div>
diff --git a/tests/wpt/tests/css/css-text-decor/text-decoration-trim-003.html b/tests/wpt/tests/css/css-text-decor/text-decoration-trim-003.html
new file mode 100644
index 00000000000..b09b1d41a4e
--- /dev/null
+++ b/tests/wpt/tests/css/css-text-decor/text-decoration-trim-003.html
@@ -0,0 +1,34 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+
+<title>CSS Text Decoration 4: text-decoration-trim</title>
+
+<link rel="help" href="https://drafts.csswg.org/css-text-decor-4/#propdef-text-decoration-trim">
+<link rel="author" title="Jonathan Kew" href="mailto:jkew@mozilla.com">
+
+<link rel="match" href="reference/text-decoration-trim-003-ref.html">
+
+<style>
+body {
+  background: white;
+  color: black;
+}
+div {
+  position: relative;
+}
+h1 {
+  position: absolute;
+}
+u {
+  text-decoration-color: black;
+  text-decoration-trim: 0.25em;
+}
+</style>
+
+<p>The underline for "brown" should be trimmed by 0.25em at each end:</p>
+
+<div>
+  <h1>
+    the quick <u>brown</u> fox
+  </h1>
+</div>
diff --git a/tests/wpt/tests/css/css-text-decor/text-decoration-trim-004.html b/tests/wpt/tests/css/css-text-decor/text-decoration-trim-004.html
new file mode 100644
index 00000000000..76e09c9a40e
--- /dev/null
+++ b/tests/wpt/tests/css/css-text-decor/text-decoration-trim-004.html
@@ -0,0 +1,35 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+
+<title>CSS Text Decoration 4: text-decoration-trim</title>
+
+<link rel="help" href="https://drafts.csswg.org/css-text-decor-4/#propdef-text-decoration-trim">
+<link rel="author" title="Jonathan Kew" href="mailto:jkew@mozilla.com">
+
+<link rel="match" href="reference/text-decoration-trim-004-ref.html">
+
+<style>
+body {
+  background: white;
+  color: black;
+}
+div {
+  position: relative;
+}
+h1 {
+  position: absolute;
+  width: 15ch;
+}
+u {
+  text-decoration-color: black;
+  text-decoration-trim: -0.25em;
+}
+</style>
+
+<p>The underline for "ultra-quick brown" should be extended by .25em at each end, but not at the line-break:</p>
+
+<div>
+  <h1>
+    the <u>ultra-quick brown</u> fox
+  </h1>
+</div>
diff --git a/tests/wpt/tests/css/css-text-decor/text-decoration-trim-005.html b/tests/wpt/tests/css/css-text-decor/text-decoration-trim-005.html
new file mode 100644
index 00000000000..5909ee10b55
--- /dev/null
+++ b/tests/wpt/tests/css/css-text-decor/text-decoration-trim-005.html
@@ -0,0 +1,35 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+
+<title>CSS Text Decoration 4: text-decoration-trim</title>
+
+<link rel="help" href="https://drafts.csswg.org/css-text-decor-4/#propdef-text-decoration-trim">
+<link rel="author" title="Jonathan Kew" href="mailto:jkew@mozilla.com">
+
+<link rel="match" href="reference/text-decoration-trim-005-ref.html">
+
+<style>
+body {
+  background: white;
+  color: black;
+}
+div {
+  position: relative;
+}
+h1 {
+  position: absolute;
+}
+u {
+  text-decoration-color: black;
+  text-decoration-trim: -0.25em;
+}
+</style>
+
+<p>The underline for "ultra-quick brown" should be extended by .25em at each end;
+super- and sub-scripts should be unaffected:</p>
+
+<div>
+  <h1>
+    the <u>ultra-<sup>quick</sup> b<sub>row</sub>n</u> fox
+  </h1>
+</div>
diff --git a/tests/wpt/tests/css/css-text-decor/text-decoration-trim-006.html b/tests/wpt/tests/css/css-text-decor/text-decoration-trim-006.html
new file mode 100644
index 00000000000..ce325a554cd
--- /dev/null
+++ b/tests/wpt/tests/css/css-text-decor/text-decoration-trim-006.html
@@ -0,0 +1,35 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+
+<title>CSS Text Decoration 4: text-decoration-trim</title>
+
+<link rel="help" href="https://drafts.csswg.org/css-text-decor-4/#propdef-text-decoration-trim">
+<link rel="author" title="Jonathan Kew" href="mailto:jkew@mozilla.com">
+
+<link rel="match" href="reference/text-decoration-trim-006-ref.html">
+
+<style>
+body {
+  background: white;
+  color: black;
+}
+div {
+  position: relative;
+}
+h1 {
+  position: absolute;
+}
+u {
+  text-decoration-color: black;
+  text-decoration-trim: 0.25em;
+}
+</style>
+
+<p>The underline for "ultra-quick brown" should be trimmed by .25em at each end;
+super- and sub-scripts should be unaffected:</p>
+
+<div>
+  <h1>
+    the <u>ultra-<sup>quick</sup> b<sub>ro</sub>wn</u> fox
+  </h1>
+</div>
diff --git a/tests/wpt/tests/css/css-text-decor/text-decoration-trim-007.html b/tests/wpt/tests/css/css-text-decor/text-decoration-trim-007.html
new file mode 100644
index 00000000000..9c8cc2956cf
--- /dev/null
+++ b/tests/wpt/tests/css/css-text-decor/text-decoration-trim-007.html
@@ -0,0 +1,36 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+
+<title>CSS Text Decoration 4: text-decoration-trim</title>
+
+<link rel="help" href="https://drafts.csswg.org/css-text-decor-4/#propdef-text-decoration-trim">
+<link rel="author" title="Jonathan Kew" href="mailto:jkew@mozilla.com">
+
+<link rel="match" href="reference/text-decoration-trim-007-ref.html">
+
+<style>
+body {
+  background: white;
+  color: black;
+  font-family: times new roman, serif;
+}
+div {
+  position: relative;
+}
+h1 {
+  position: absolute;
+}
+u {
+  text-decoration-color: black;
+  text-decoration-trim: 10px -10px;
+  text-underline-offset: 10px;
+}
+</style>
+
+<p>The underline for "جلدي  brown" should be offset by 10px to the right, and not interrupted at the direction boundary:</p>
+
+<div>
+  <h1>
+    the <u>جلدي brown</u> fox
+  </h1>
+</div>
diff --git a/tests/wpt/tests/css/css-text-decor/text-decoration-trim-008.html b/tests/wpt/tests/css/css-text-decor/text-decoration-trim-008.html
new file mode 100644
index 00000000000..bc73c115d8a
--- /dev/null
+++ b/tests/wpt/tests/css/css-text-decor/text-decoration-trim-008.html
@@ -0,0 +1,40 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+
+<title>CSS Text Decoration 4: text-decoration-trim</title>
+
+<link rel="help" href="https://drafts.csswg.org/css-text-decor-4/#propdef-text-decoration-trim">
+<link rel="author" title="Jonathan Kew" href="mailto:jkew@mozilla.com">
+
+<link rel="match" href="reference/text-decoration-trim-008-ref.html">
+
+<style>
+body {
+  background: white;
+  color: black;
+  font-family: times new roman, serif;
+}
+div {
+  position: relative;
+}
+h1 {
+  position: absolute;
+}
+span {
+  display: inline-block;
+  position: relative;
+}
+u {
+  text-decoration-color: black;
+  text-decoration-trim: 10px;
+  text-underline-offset: 10px;
+}
+</style>
+
+<p>The underline for "quick براؤن" should be trimmed by 10px at each end, and not interrupted at the direction boundary:</p>
+
+<div>
+  <h1>
+    the <u>quick براؤن</u> fox
+  </h1>
+</div>
diff --git a/tests/wpt/tests/css/css-text-decor/text-decoration-trim-009.html b/tests/wpt/tests/css/css-text-decor/text-decoration-trim-009.html
new file mode 100644
index 00000000000..4676847389a
--- /dev/null
+++ b/tests/wpt/tests/css/css-text-decor/text-decoration-trim-009.html
@@ -0,0 +1,40 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+
+<title>CSS Text Decoration 4: text-decoration-trim</title>
+
+<link rel="help" href="https://drafts.csswg.org/css-text-decor-4/#propdef-text-decoration-trim">
+<link rel="author" title="Jonathan Kew" href="mailto:jkew@mozilla.com">
+
+<link rel="match" href="reference/text-decoration-trim-009-ref.html">
+
+<style>
+body {
+  background: white;
+  color: black;
+}
+div {
+  position: relative;
+}
+h1 {
+  position: absolute;
+}
+u {
+  text-decoration-color: black;
+  text-decoration-trim: 0.25em;
+}
+u.green {
+  text-decoration-color: green;
+  text-underline-offset: 10px;
+  text-decoration-trim: -0.5em;
+}
+</style>
+
+<p>The underline for "ultra-quick brown" should be trimmed by .25em at each end;
+the additional green underline for "quick" should be extended by .5em at each end:</p>
+
+<div>
+  <h1>
+    the <u>ultra-<u class="green">quick</u> brown</u> fox
+  </h1>
+</div>
diff --git a/tests/wpt/tests/css/css-text-decor/text-decoration-trim-010.html b/tests/wpt/tests/css/css-text-decor/text-decoration-trim-010.html
new file mode 100644
index 00000000000..9733ef959de
--- /dev/null
+++ b/tests/wpt/tests/css/css-text-decor/text-decoration-trim-010.html
@@ -0,0 +1,35 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+
+<title>CSS Text Decoration 4: text-decoration-trim</title>
+
+<link rel="help" href="https://drafts.csswg.org/css-text-decor-4/#propdef-text-decoration-trim">
+<link rel="author" title="Jonathan Kew" href="mailto:jkew@mozilla.com">
+
+<link rel="mismatch" href="reference/text-decoration-trim-010-notref.html">
+
+<style>
+body {
+  background: white;
+  color: black;
+}
+div {
+  position: relative;
+}
+h1 {
+  position: absolute;
+}
+u {
+  text-decoration-color: blue;
+  text-decoration-trim: auto;
+  text-underline-position: under;
+}
+</style>
+
+<p>The underlines for "石井" and for "艾俐俐" should be visibly separate:</p>
+
+<div>
+  <h1 lang="zh">
+    <u>石井</u><u>艾俐俐</u>
+  </h1>
+</div>
diff --git a/tests/wpt/tests/css/css-text-decor/text-decoration-trim-011.html b/tests/wpt/tests/css/css-text-decor/text-decoration-trim-011.html
new file mode 100644
index 00000000000..98f8829113b
--- /dev/null
+++ b/tests/wpt/tests/css/css-text-decor/text-decoration-trim-011.html
@@ -0,0 +1,45 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+
+<title>CSS Text Decoration 4: text-decoration-trim</title>
+
+<link rel="help" href="https://drafts.csswg.org/css-text-decor-4/#propdef-text-decoration-trim">
+<link rel="author" title="Jonathan Kew" href="mailto:jkew@mozilla.com">
+
+<link rel="match" href="reference/text-decoration-trim-011-ref.html">
+
+<style>
+body {
+  background: white;
+  color: black;
+  font-family: times new roman, serif;
+}
+div {
+  position: relative;
+  margin-left: 10px;
+}
+h1 {
+  position: absolute;
+  line-height: 2;
+  width: 10em;
+}
+u.a {
+  text-decoration-color: blue;
+  text-underline-offset: 20px;
+  text-decoration-trim: 10px;
+}
+u.b {
+  text-decoration-color: green;
+  text-underline-offset: 20px;
+  text-decoration-trim: 10px -10px;
+}
+</style>
+
+<p>The underline of the first phrase should be trimmed by 10px at both ends;
+the underline of the second should be offset by 10px to the left at both start and end:</p>
+
+<div lang="ar">
+  <h1 dir="rtl">
+    <u class="a">صِف خَلقَ خَودِ كَمِثلِ الشَمسِ إِذ بَزَغَت</u> —<br> <u class="b">يَحظى الضَجيعُ بِها نَجلاءَ مِعطارِ</u>
+  </h1>
+</div>
diff --git a/tests/wpt/tests/css/css-text-decor/text-decoration-trim-012.html b/tests/wpt/tests/css/css-text-decor/text-decoration-trim-012.html
new file mode 100644
index 00000000000..9fec5e0cdd0
--- /dev/null
+++ b/tests/wpt/tests/css/css-text-decor/text-decoration-trim-012.html
@@ -0,0 +1,37 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+
+<title>CSS Text Decoration 4: text-decoration-trim</title>
+
+<link rel="help" href="https://drafts.csswg.org/css-text-decor-4/#propdef-text-decoration-trim">
+<link rel="author" title="Jonathan Kew" href="mailto:jkew@mozilla.com">
+
+<link rel="match" href="reference/text-decoration-trim-012-ref.html">
+
+<style>
+body {
+  background: white;
+  color: black;
+}
+div {
+  position: relative;
+  width: 10em;
+  height: 20em;
+  writing-mode: vertical-rl;
+}
+h1 {
+  position: absolute;
+}
+u {
+  text-decoration-color: black;
+  text-decoration-trim: 10px -10px;
+}
+</style>
+
+<p>The underline for "brown" should be offset by 10px downwards:</p>
+
+<div>
+  <h1>
+    the quick <u>brown</u> fox
+  </h1>
+</div>
diff --git a/tests/wpt/tests/css/css-text-decor/text-decoration-trim-013.html b/tests/wpt/tests/css/css-text-decor/text-decoration-trim-013.html
new file mode 100644
index 00000000000..b20ba4671a9
--- /dev/null
+++ b/tests/wpt/tests/css/css-text-decor/text-decoration-trim-013.html
@@ -0,0 +1,37 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+
+<title>CSS Text Decoration 4: text-decoration-trim</title>
+
+<link rel="help" href="https://drafts.csswg.org/css-text-decor-4/#propdef-text-decoration-trim">
+<link rel="author" title="Jonathan Kew" href="mailto:jkew@mozilla.com">
+
+<link rel="match" href="reference/text-decoration-trim-013-ref.html">
+
+<style>
+body {
+  background: white;
+  color: black;
+}
+div {
+  position: relative;
+  width: 10em;
+  height: 20em;
+  writing-mode: sideways-lr;
+}
+h1 {
+  position: absolute;
+}
+u {
+  text-decoration-color: black;
+  text-decoration-trim: 10px -10px;
+}
+</style>
+
+<p>The underline for "brown" should be offset by 10px upwards:</p>
+
+<div>
+  <h1>
+    the quick <u>brown</u> fox
+  </h1>
+</div>
diff --git a/tests/wpt/tests/css/css-text-decor/text-decoration-trim-014.html b/tests/wpt/tests/css/css-text-decor/text-decoration-trim-014.html
new file mode 100644
index 00000000000..51b6c9f342a
--- /dev/null
+++ b/tests/wpt/tests/css/css-text-decor/text-decoration-trim-014.html
@@ -0,0 +1,37 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+
+<title>CSS Text Decoration 4: text-decoration-trim</title>
+
+<link rel="help" href="https://drafts.csswg.org/css-text-decor-4/#propdef-text-decoration-trim">
+<link rel="author" title="Jonathan Kew" href="mailto:jkew@mozilla.com">
+
+<link rel="match" href="reference/text-decoration-trim-014-ref.html">
+
+<style>
+body {
+  background: white;
+  color: black;
+}
+div {
+  position: relative;
+}
+h1 {
+  position: absolute;
+  font-family: monospace;
+  width: 16ch;
+}
+u {
+  text-decoration-color: black;
+  text-decoration-trim: -0.5ch;
+  box-decoration-break: clone;
+}
+</style>
+
+<p>The underline for "ultra-quick brown" should be extended by 0.5ch at each end of each fragment:</p>
+
+<div>
+  <h1>
+    the <u>ultra-quick brown</u> fox
+  </h1>
+</div>
diff --git a/tests/wpt/tests/css/css-text-decor/text-decoration-trim-015.html b/tests/wpt/tests/css/css-text-decor/text-decoration-trim-015.html
new file mode 100644
index 00000000000..da8979fd7e0
--- /dev/null
+++ b/tests/wpt/tests/css/css-text-decor/text-decoration-trim-015.html
@@ -0,0 +1,34 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+
+<title>CSS Text Decoration 4: text-decoration-trim</title>
+
+<link rel="help" href="https://drafts.csswg.org/css-text-decor-4/#propdef-text-decoration-trim">
+<link rel="author" title="Jonathan Kew" href="mailto:jkew@mozilla.com">
+
+<link rel="match" href="reference/text-decoration-trim-015-ref.html">
+
+<style>
+body {
+  background: white;
+  color: black;
+}
+div {
+  position: relative;
+}
+h1 {
+  position: absolute;
+}
+u {
+  text-decoration-color: black;
+  text-decoration-trim: 3em;
+}
+</style>
+
+<p>The underline for "brown" should be entirely trimmed away:</p>
+
+<div>
+  <h1>
+    the quick <u>brown</u> fox
+  </h1>
+</div>
diff --git a/tests/wpt/tests/css/css-text-decor/text-decoration-trim-016.html b/tests/wpt/tests/css/css-text-decor/text-decoration-trim-016.html
new file mode 100644
index 00000000000..5ce46b55dff
--- /dev/null
+++ b/tests/wpt/tests/css/css-text-decor/text-decoration-trim-016.html
@@ -0,0 +1,34 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+
+<title>CSS Text Decoration 4: text-decoration-trim</title>
+
+<link rel="help" href="https://drafts.csswg.org/css-text-decor-4/#propdef-text-decoration-trim">
+<link rel="author" title="Jonathan Kew" href="mailto:jkew@mozilla.com">
+
+<link rel="match" href="reference/text-decoration-trim-001-ref.html">
+
+<style>
+body {
+  background: white;
+  color: black;
+}
+div {
+  position: relative;
+}
+h1 {
+  position: absolute;
+}
+u {
+  text-decoration-color: black;
+  text-decoration-trim: 10em -12em;
+}
+</style>
+
+<p>The underline for "brown" should be offset by 10em to the right, and lengthened by 2em:</p>
+
+<div>
+  <h1>
+    the quick <u>brown</u> fox
+  </h1>
+</div>
diff --git a/tests/wpt/tests/css/css-text/text-autospace/text-autospace-vs-001-ref.html b/tests/wpt/tests/css/css-text/text-autospace/text-autospace-vs-001-ref.html
index b02b4f7a20d..b998c9e405c 100644
--- a/tests/wpt/tests/css/css-text/text-autospace/text-autospace-vs-001-ref.html
+++ b/tests/wpt/tests/css/css-text/text-autospace/text-autospace-vs-001-ref.html
@@ -20,4 +20,5 @@
   <div class="test">国&#xE0100;国</div>
   <div class="test">国&#xE0100;<span>A</span></div>
   <div class="test">A&#xE0100;<span>国</span></div>
+  <div class="test">“&#xFE01;国</div>
 </div>
diff --git a/tests/wpt/tests/css/css-text/text-autospace/text-autospace-vs-001.html b/tests/wpt/tests/css/css-text/text-autospace/text-autospace-vs-001.html
index 18e42402c4d..ee838214eda 100644
--- a/tests/wpt/tests/css/css-text/text-autospace/text-autospace-vs-001.html
+++ b/tests/wpt/tests/css/css-text/text-autospace/text-autospace-vs-001.html
@@ -17,4 +17,5 @@
   <div class="test">国&#xE0100;国</div>
   <div class="test">国&#xE0100;A</div>
   <div class="test">A&#xE0100;国</div>
+  <div class="test">“&#xFE01;国</div>
 </div>
diff --git a/tests/wpt/tests/css/css-text/text-indent/below-float2.html b/tests/wpt/tests/css/css-text/text-indent/below-float2.html
new file mode 100644
index 00000000000..c8734352e42
--- /dev/null
+++ b/tests/wpt/tests/css/css-text/text-indent/below-float2.html
@@ -0,0 +1,36 @@
+<!DOCTYPE html>
+<link rel="help" href="https://www.w3.org/TR/css-text-4/#text-indent-property">
+<meta name="assert" content="Floats are not part of lines, so if a float is too wide to fit any inline content beside it, the first formatted line goes below it">
+<link rel="match" href="../../reference/ref-filled-green-100px-square.xht">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
+<style>
+.container {
+  position: relative;
+  width: 100px;
+  height: 100px;
+  font: 50px/50px Ahem;
+  text-indent: 50px;
+  color: green;
+  background-color: red;
+}
+
+.abs_pos {
+  position: absolute;
+  top: 50px;
+  width: 50px;
+  height: 50px;
+  background-color: green;
+}
+
+.float_box {
+  float: left;
+  width: 100px;
+  height: 50px;
+  background-color: green;
+}
+</style>
+<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+<div class=container>
+  <div class=abs_pos></div>
+  <div class=float_box></div>x
+</div>
diff --git a/tests/wpt/tests/css/css-text/text-indent/below-float3.html b/tests/wpt/tests/css/css-text/text-indent/below-float3.html
new file mode 100644
index 00000000000..02ad6c3a008
--- /dev/null
+++ b/tests/wpt/tests/css/css-text/text-indent/below-float3.html
@@ -0,0 +1,41 @@
+<!DOCTYPE html>
+<link rel="help" href="https://www.w3.org/TR/css-text-4/#text-indent-property">
+<meta name="assert" content="Floats are not part of lines, so if a float is too wide to fit any inline content beside it, the first formatted line goes below it">
+<link rel="match" href="../../reference/ref-filled-green-100px-square.xht">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
+<style>
+.container {
+  position: relative;
+  width: 100px;
+  height: 100px;
+  font-family: Ahem;
+  line-height: 50px;
+  text-indent: 50px;
+  color: green;
+  background-color: red;
+}
+
+.abs_pos {
+  position: absolute;
+  top: 50px;
+  width: 50px;
+  height: 50px;
+  background-color: green;
+}
+
+.float_box {
+  float: left;
+  width: 100px;
+  height: 50px;
+  background-color: green;
+}
+
+.container::first-line {
+  font-size: 50px;
+}
+</style>
+<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+<div class=container>
+  <div class=abs_pos></div>
+  <div class=float_box></div>x
+</div>
diff --git a/tests/wpt/tests/css/css-text/word-spacing/word-spacing-003-ref.html b/tests/wpt/tests/css/css-text/word-spacing/word-spacing-003-ref.html
new file mode 100644
index 00000000000..58daef83ca7
--- /dev/null
+++ b/tests/wpt/tests/css/css-text/word-spacing/word-spacing-003-ref.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<title>CSS Text Reference: Word Spacing</title>
+<link rel="author" title="Minseong Kim" href="mailto:jja08111@gmail.com">
+<link rel="stylesheet" href="/fonts/ahem.css">
+<meta name="flags" content="ahem">
+<style>
+@font-face {
+  font-family: Ahem;
+  src: url(/fonts/Ahem.ttf);
+}
+/* We use Ahem to avoid very minor differences between the test and the
+   reference that occur with certain font+platform combinations. */
+div { font-family: Ahem, monospace; font-size: 20px; white-space: pre; }
+</style>
+<body>
+  <p>Test passes if there is the one rectangle</p>
+  <div>  a</div>
+  <div>  a</div>
+</body>
diff --git a/tests/wpt/tests/css/css-text/word-spacing/word-spacing-003.html b/tests/wpt/tests/css/css-text/word-spacing/word-spacing-003.html
new file mode 100644
index 00000000000..e3e184ae17d
--- /dev/null
+++ b/tests/wpt/tests/css/css-text/word-spacing/word-spacing-003.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<title>CSS Text Test: Word Spacing</title>
+<link rel="author" title="Minseong Kim" href="mailto:jja08111@gmail.com">
+<link rel="help" href="http://www.w3.org/TR/css-text-3/#word-spacing">
+<link rel="stylesheet" href="/fonts/ahem.css">
+<link rel="match" href="word-spacing-003-ref.html">
+<meta name="flags" content="ahem">
+<meta name="assert" content="The leading space characters contain word-spacing when white-space: pre.">
+<style>
+@font-face {
+  font-family: Ahem;
+  src: url(/fonts/Ahem.ttf);
+}
+/* We use Ahem to avoid very minor differences between the test and the
+   reference that occur with certain font+platform combinations. */
+div    { font-family: Ahem, monospace; font-size: 20px; white-space: pre; }
+div.ws { word-spacing: 1ch; }
+</style>
+<body>
+  <p>Test passes if there is the one rectangle</p>
+  <div class="ws"> a</div>
+  <div>  a</div>
+</body>
diff --git a/tests/wpt/tests/css/css-values/attr-all-types.html b/tests/wpt/tests/css/css-values/attr-all-types.html
index e2a20bab55b..cc34eb3cbb4 100644
--- a/tests/wpt/tests/css/css-values/attr-all-types.html
+++ b/tests/wpt/tests/css/css-values/attr-all-types.html
@@ -94,6 +94,9 @@
     test_invalid_attr('content', 'attr(data-foo string)', 'abc');
     test_valid_attr('content', 'attr(data-foo raw-string)', 'abc', '"abc"');
     test_valid_attr('content', 'attr(data-foo,)', 'abc', '"abc"');
+    test_valid_attr('content', 'attr(data-foo, 3)', 'attr(', '"attr("');
+    test_valid_attr('content', 'attr(data-foo)', 'attr(', '"attr("');
+    test_valid_attr('content', 'attr(data-foo raw-string)', 'attr(', '"attr("');
 
     test_valid_attr('content', 'attr(data-foo type(<string>))', '"abc"', '"abc"');
     test_valid_attr('content', 'attr(data-foo type(<string>),)', '"abc"', '"abc"');
@@ -107,6 +110,7 @@
     test_valid_attr('animation-name', 'attr(data-foo type(<custom-ident>), anim-fallback)', '"anim"', 'anim-fallback');
     test_valid_attr('animation-name', 'attr(data-foo type(<custom-ident>), anim-fallback)', 'initial', 'anim-fallback');
     test_valid_attr('animation-name', 'attr(data-foo type(<custom-ident>))', 'var(', '');
+    test_valid_attr('animation-name', 'attr(data-foo type(<custom-ident>), anim)', 'var(', 'anim');
     test_valid_attr('animation-name', 'attr(data-foo type(<custom-ident>))', 'var(--x fallback)', '');
     test_valid_attr('animation-name', 'attr(data-foo type(<custom-ident>))', 'attr(data-bar type(number))', '');
 
@@ -125,6 +129,7 @@
     test_valid_attr('font-weight', 'attr(data-foo type(<number>))', 'calc(3 + 3)', '6');
     test_valid_attr('font-weight', 'attr(data-foo type(<number>), calc(10 + 20))', '10px', '30');
     test_valid_attr('font-weight', 'attr(data-foo type(<number>))', 'attr(', '');
+    test_valid_attr('font-weight', 'attr(data-foo type(<number>), 10)', 'attr(', '10');
     test_valid_attr('font-weight', 'attr(data-foo type(<number>))', 'attr(data-bar type(number))', '');
     test_valid_attr('font-weight', 'attr(data-foo type(<number>))', 'attr(data-bar type(<number>) 3)', '');
 
@@ -163,6 +168,8 @@
     test_valid_attr('--y', 'attr(data-foo type(*))', 'attr(data-bar type(<number>), 11)', '3');
     test_valid_attr('width', 'attr(data-foo type(*))', 'attr(data-bar type(<number>), 11)', '3');
     test_valid_attr('--y', 'attr(data-foo type(*))', 'attr(data-bar type(<number>), 11) var(--length, 3px)', '3 10px');
+    test_valid_attr('animation-name', 'attr(data-foo type(*))', 'attr(', '');
+    test_valid_attr('animation-name', 'attr(data-foo type(*), anim)', 'attr(', 'anim');
 
     test_dimension_types_and_units();
 
diff --git a/tests/wpt/tests/css/css-values/attr-revert-rule.tentative.html b/tests/wpt/tests/css/css-values/attr-revert-rule.tentative.html
new file mode 100644
index 00000000000..c1274bb185c
--- /dev/null
+++ b/tests/wpt/tests/css/css-values/attr-revert-rule.tentative.html
@@ -0,0 +1,25 @@
+<!DOCTYPE html>
+<title>The revert-rule keyword: interaction with attr()</title>
+<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/10443">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+
+<style>
+  :root {
+    #test1 {
+      color: green;
+    }
+    #test1 {
+      color: red;
+      color: attr(data-unknown, revert-rule);
+    }
+  }
+</style>
+<div id=test1></div>
+<script>
+  test(() => {
+    assert_true(CSS.supports('color:revert-rule'));
+    assert_true(CSS.supports('color:attr(data-unknown, revert-rule)'));
+    assert_equals(getComputedStyle(test1).color, 'rgb(0, 128, 0)')
+  }, 'The revert-rule works in an attr() fallback');
+</script>
diff --git a/tests/wpt/tests/css/css-values/if-function-revert-rule.tentative.html b/tests/wpt/tests/css/css-values/if-function-revert-rule.tentative.html
new file mode 100644
index 00000000000..3f6460808f4
--- /dev/null
+++ b/tests/wpt/tests/css/css-values/if-function-revert-rule.tentative.html
@@ -0,0 +1,42 @@
+<!DOCTYPE html>
+<title>The revert-rule keyword: interaction with if()</title>
+<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/10443">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+
+<style>
+  #test1 {
+    color: green;
+  }
+  #test1 {
+    color: red;
+    --x: 3;
+    color: if(style(--x:1000):red; else:revert-rule);
+  }
+</style>
+<div id=test1></div>
+<script>
+  test(() => {
+    assert_true(CSS.supports('color:revert-rule'));
+    assert_equals(getComputedStyle(test1).color, 'rgb(0, 128, 0)')
+  }, 'The revert-rule works as a branch in if()');
+</script>
+
+
+<style>
+  #test2 {
+    color: green;
+  }
+  #test2 {
+    color: red;
+    --x: 1000;
+    color: if(style(--x:1000):revert-rule; else:red);
+  }
+</style>
+<div id=test2></div>
+<script>
+  test(() => {
+    assert_true(CSS.supports('color:revert-rule'));
+    assert_equals(getComputedStyle(test2).color, 'rgb(0, 128, 0)')
+  }, 'The revert-rule works as a branch in if(), earlier return');
+</script>
diff --git a/tests/wpt/tests/css/css-variables/revert-rule-in-fallback.tentative.html b/tests/wpt/tests/css/css-variables/revert-rule-in-fallback.tentative.html
new file mode 100644
index 00000000000..a23adab41cb
--- /dev/null
+++ b/tests/wpt/tests/css/css-variables/revert-rule-in-fallback.tentative.html
@@ -0,0 +1,50 @@
+<!DOCTYPE html>
+<title>CSS Custom Properties: Using revert-rule in fallbacks</title>
+<link rel="help" href="https://drafts.csswg.org/css-variables/#substitute-a-var">
+<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/10443">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<style>
+  #child {
+    --x:PASS;
+    margin: 1px;
+    padding-left: 1px;
+  }
+  #parent {
+    --x:FAIL;
+    margin: -1px;
+    padding-left: -1px;
+  }
+  #child {
+    --x: var(--unknown, revert-rule);
+    margin: var(--unknown, revert-rule);
+    padding-left: var(--unknown, revert-rule);
+  }
+</style>
+<div id=parent>
+  <div id=child>
+  </div>
+</div>
+<pre id=out>
+</pre>
+<script>
+  test((x) => {
+    assert_true(CSS.supports('--x:revert-rule'));
+    assert_equals(getComputedStyle(child).getPropertyValue('--x'), 'PASS');
+  }, 'var(--unknown, revert-rule) in custom property');
+
+  test((x) => {
+    assert_true(CSS.supports('margin:revert-rule'));
+    assert_equals(getComputedStyle(child).getPropertyValue('margin'), '1px');
+  }, 'var(--unknown, revert-rule) in shorthand');
+
+  test((x) => {
+    assert_true(CSS.supports('margin-left:revert-rule'));
+    assert_equals(getComputedStyle(child).getPropertyValue('margin-left'), '1px');
+  }, 'var(--unknown, revert-rule) in shorthand observed via longhand');
+
+  test((x) => {
+    assert_true(CSS.supports('padding-left:revert-rule'));
+    assert_equals(getComputedStyle(child).getPropertyValue('padding-left'), '1px');
+  }, 'var(--unknown, revert-rule) in longhand');
+</script>
diff --git a/tests/wpt/tests/css/css-variables/revert-rule-to-var.tentative.html b/tests/wpt/tests/css/css-variables/revert-rule-to-var.tentative.html
new file mode 100644
index 00000000000..9a53ed12d5a
--- /dev/null
+++ b/tests/wpt/tests/css/css-variables/revert-rule-to-var.tentative.html
@@ -0,0 +1,25 @@
+<!DOCTYPE html>
+<title>CSS Custom Properties: Using revert-rule to revert to a var()</title>
+<link rel="help" href="https://drafts.csswg.org/css-variables/#substitute-a-var">
+<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/10443">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<style>
+  #target {
+    --green: green;
+    color: var(--green);
+  }
+  #target {
+    color: red;
+    color: revert-rule;
+  }
+</style>
+<div id=target>
+</div>
+<script>
+  test((x) => {
+    assert_true(CSS.supports('color:revert-rule'));
+    assert_equals(getComputedStyle(target).color, 'rgb(0, 128, 0)');
+  }, 'Using revert-rule to revert to a value containing var()');
+
+</script>
diff --git a/tests/wpt/tests/css/css-view-transitions/idlharness.html b/tests/wpt/tests/css/css-view-transitions/idlharness.html
index 97380b73882..a16330fcddd 100644
--- a/tests/wpt/tests/css/css-view-transitions/idlharness.html
+++ b/tests/wpt/tests/css/css-view-transitions/idlharness.html
@@ -17,7 +17,7 @@
 'use strict';
 
 idl_test(
-  ['css-view-transitions', 'css-view-transitions-2'],
+  ['css-view-transitions'],
   ['dom', 'html', 'cssom'],
   idl_array => {
     idl_array.add_objects({
diff --git a/tests/wpt/tests/css/css-view-transitions/nested/green-rect-ref.html b/tests/wpt/tests/css/css-view-transitions/nested/green-rect-ref.html
new file mode 100644
index 00000000000..6d73024b615
--- /dev/null
+++ b/tests/wpt/tests/css/css-view-transitions/nested/green-rect-ref.html
@@ -0,0 +1,15 @@
+<!doctype html>
+<html>
+<title>Nested View Transitions: green rect (ref)</title>
+<link rel="help" href="https://drafts.csswg.org/css-view-transitions-2/">
+
+<style>
+div {
+  width: 100px;
+  height: 100px;
+  background: green;
+}
+</style>
+
+<div></div>
+</html>
diff --git a/tests/wpt/tests/css/css-view-transitions/nested/nested-parent-changes-transform-twice.html b/tests/wpt/tests/css/css-view-transitions/nested/nested-parent-changes-transform-twice.html
new file mode 100644
index 00000000000..f4dbcb24a15
--- /dev/null
+++ b/tests/wpt/tests/css/css-view-transitions/nested/nested-parent-changes-transform-twice.html
@@ -0,0 +1,76 @@
+<!doctype html>
+<html class=reftest-wait>
+<title>Nested View Transitions: child only has old and parent changes transform (twice)</title>
+<link rel="help" href="https://drafts.csswg.org/css-view-transitions-2/">
+<link rel="match" href="green-rect-ref.html">
+<script src="/common/reftest-wait.js"></script>
+<script src="resources/compute-test.js"></script>
+<script src="/dom/events/scrolling/scroll_support.js"></script>
+
+<style>
+:root { view-transition-name: none; }
+
+.container {
+  width: 100px;
+  height: 100px;
+  position: relative;
+  background: red;
+
+  view-transition-name: container;
+  view-transition-group: contain;
+}
+
+.container.shifted {
+  top: 150px;
+}
+.container.shifted_again {
+  left: 150px;
+}
+
+.contained {
+  width: 100px;
+  height: 100px;
+  background: green;
+
+  view-transition-name: contained;
+}
+
+.hidden {
+  display: none;
+}
+
+::view-transition-group(*) {
+  animation-play-state: paused;
+}
+
+::view-transition-old(*) {
+  animation: unset;
+  opacity: 1;
+}
+
+::view-transition-new(*) {
+  animation: unset;
+  opacity: 0;
+}
+
+</style>
+
+<div id=container class=container>
+  <div id=contained class=contained></div>
+</div>
+
+<script>
+function runTest() {
+  const transition = document.startViewTransition(() => {
+    container.classList.add("shifted");
+    contained.classList.add("hidden");
+  });
+
+  transition.ready.then(() => requestAnimationFrame(() => requestAnimationFrame(() => {
+    container.classList.add("shifted_again");
+    requestAnimationFrame(takeScreenshot);
+  })));
+}
+
+onload = () => waitForCompositorReady().then(runTest);
+</script>
diff --git a/tests/wpt/tests/css/css-view-transitions/nested/nested-parent-changes-transform.html b/tests/wpt/tests/css/css-view-transitions/nested/nested-parent-changes-transform.html
new file mode 100644
index 00000000000..153449bb014
--- /dev/null
+++ b/tests/wpt/tests/css/css-view-transitions/nested/nested-parent-changes-transform.html
@@ -0,0 +1,68 @@
+<!doctype html>
+<html class=reftest-wait>
+<title>Nested View Transitions: child only has old and parent changes transform</title>
+<link rel="help" href="https://drafts.csswg.org/css-view-transitions-2/">
+<link rel="match" href="green-rect-ref.html">
+<script src="/common/reftest-wait.js"></script>
+<script src="resources/compute-test.js"></script>
+<script src="/dom/events/scrolling/scroll_support.js"></script>
+
+<style>
+:root { view-transition-name: none; }
+
+.container {
+  width: 100px;
+  height: 100px;
+  position: relative;
+  background: red;
+
+  view-transition-name: container;
+  view-transition-group: contain;
+}
+
+.container.shifted {
+  top: 150px;
+}
+
+.contained {
+  width: 100px;
+  height: 100px;
+  background: green;
+
+  view-transition-name: contained;
+}
+
+.hidden {
+  display: none;
+}
+
+::view-transition-group(*) {
+  animation-play-state: paused;
+}
+
+::view-transition-old(*) {
+  animation: unset;
+  opacity: 1;
+}
+
+::view-transition-new(*) {
+  animation: unset;
+  opacity: 0;
+}
+
+</style>
+
+<div id=container class=container>
+  <div id=contained class=contained></div>
+</div>
+
+<script>
+function runTest() {
+  document.startViewTransition(() => {
+    container.classList.add("shifted");
+    contained.classList.add("hidden");
+  }).ready.then(takeScreenshot);
+}
+
+onload = () => waitForCompositorReady().then(runTest);
+</script>
diff --git a/tests/wpt/tests/css/css-view-transitions/table-caption-ref.html b/tests/wpt/tests/css/css-view-transitions/table-caption-ref.html
new file mode 100644
index 00000000000..a4ad0c0471f
--- /dev/null
+++ b/tests/wpt/tests/css/css-view-transitions/table-caption-ref.html
@@ -0,0 +1,16 @@
+<!doctype html>
+<style>
+  table {
+    view-transition-name: table;
+  }
+
+  :root {
+    background: pink;
+  }
+</style>
+<table>
+  <caption>Caption</caption>
+  <tr>
+    <td>Some row</td>
+  </tr>
+</table>
diff --git a/tests/wpt/tests/css/css-view-transitions/table-caption.html b/tests/wpt/tests/css/css-view-transitions/table-caption.html
new file mode 100644
index 00000000000..36b1e15e489
--- /dev/null
+++ b/tests/wpt/tests/css/css-view-transitions/table-caption.html
@@ -0,0 +1,43 @@
+<!doctype html>
+<html class="reftest-wait">
+<meta charset="utf-8">
+<title>View Transitions: Table with captions</title>
+<link rel="help" href="https://drafts.csswg.org/css-view-transitions-1/">
+<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1985924">
+<link rel="author" href="mailto:emilio@crisal.io" title="Emilio Cobos Álvarez">
+<link rel="author" href="https://mozilla.org" title="Mozilla">
+<link rel="match" href="table-caption-ref.html">
+<style>
+  table {
+    view-transition-name: table;
+  }
+
+  :root::view-transition-group(root) {
+    opacity: 0;
+  }
+
+  :root::view-transition-group(*) {
+    animation-play-state: paused;
+  }
+
+  :root::view-transition {
+    background: pink;
+  }
+</style>
+<table>
+  <caption>Caption</caption>
+  <tr>
+    <td>Some row</td>
+  </tr>
+</table>
+<script>
+onload = () => {
+  requestAnimationFrame(() => {
+    requestAnimationFrame(() => {
+      document.startViewTransition().ready.then(() => {
+        document.documentElement.classList = "";
+      });
+    })
+  });
+}
+</script>
diff --git a/tests/wpt/tests/css/css-view-transitions/table-caption.html.ini b/tests/wpt/tests/css/css-view-transitions/table-caption.html.ini
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/tests/wpt/tests/css/mediaqueries/preferences-colorScheme.tentative.https.html b/tests/wpt/tests/css/mediaqueries/preferences-colorScheme.tentative.https.html
new file mode 100644
index 00000000000..ae1655ab23b
--- /dev/null
+++ b/tests/wpt/tests/css/mediaqueries/preferences-colorScheme.tentative.https.html
@@ -0,0 +1,115 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="utf-8" />
+    <title>WebPreferences Test: colorScheme attribute tests</title>
+    <link rel="author" title="Luke Warlow" href="mailto:lwarlow@igalia.com" />
+    <link rel="help" href="https://drafts.csswg.org/mediaqueries-5/#auto-pref%E2%91%A0" />
+    <script src="/resources/testharness.js"></script>
+    <script src="/resources/testharnessreport.js"></script>
+    <script src=./resources/preferences-helper.js></script>
+  </head>
+  <body>
+    <script>
+      test(() => {
+        assert_true('preferences' in navigator, 'navigator.preferences defined');
+        assert_true('colorScheme' in navigator.preferences, 'navigator.preferences.colorScheme defined');
+      }, "navigator.preferences.colorScheme supported");
+      test(() => {
+        assert_true('override' in navigator.preferences.colorScheme, 'navigator.preferences.colorScheme.override defined');
+        assert_equals(navigator.preferences.colorScheme.override, null);
+      }, "navigator.preferences.colorScheme.override supported");
+      test(() => {
+        assert_true('value' in navigator.preferences.colorScheme, 'navigator.preferences.colorScheme.value defined');
+        assert_equals(navigator.preferences.colorScheme.value, 'light');
+      }, "navigator.preferences.colorScheme.value supported");
+      test(() => {
+        assert_true('validValues' in navigator.preferences.colorScheme, 'navigator.preferences.colorScheme.validValues defined');
+        assert_true(navigator.preferences.colorScheme.validValues.includes('light'), 'navigator.preferences.colorScheme.validValues includes "light"');
+        assert_true(navigator.preferences.colorScheme.validValues.includes('dark'), 'navigator.preferences.colorScheme.validValues includes "dark"');
+      }, "navigator.preferences.colorScheme.validValues supported");
+      promise_test((t) => {
+        assert_true('requestOverride' in navigator.preferences.colorScheme, 'navigator.preferences.colorScheme.requestOverride() defined');
+        return navigator.preferences.colorScheme.requestOverride('this-is-an-invalid-value')
+          .then(() => {
+            assert_not_reached('requestOverride with invalid value should not resolve');
+          })
+          .catch((e) => {
+            assert_true(e instanceof DOMException);
+            assert_equals(null, navigator.preferences.colorScheme.override);
+            t.done();
+          });
+      }, "navigator.preferences.colorScheme.requestOverride() with invalid value throws");
+      promise_test(async (t) => {
+        assert_true('clearOverride' in navigator.preferences.colorScheme, 'navigator.preferences.colorScheme.clearOverride() defined');
+        await navigator.preferences.colorScheme.requestOverride('light');
+        assert_equals(navigator.preferences.colorScheme.override, 'light');
+        navigator.preferences.colorScheme.clearOverride();
+        assert_equals(navigator.preferences.colorScheme.override, null);
+        t.done();
+      }, "navigator.preferences.colorScheme.override returns override value");
+      promise_test(async (t) => {
+        await navigator.preferences.colorScheme.requestOverride('light');
+        assert_equals(navigator.preferences.colorScheme.override, 'light');
+        await navigator.preferences.colorScheme.requestOverride(null);
+        assert_equals(navigator.preferences.colorScheme.override, null);
+        t.done();
+      }, "navigator.preferences.colorScheme.requestOverride(null) works like clearOverride()");
+      promise_test(async (t) => {
+        await navigator.preferences.colorScheme.requestOverride('light');
+        assert_equals(navigator.preferences.colorScheme.override, 'light');
+        await navigator.preferences.colorScheme.requestOverride('');
+        assert_equals(navigator.preferences.colorScheme.override, null);
+        t.done();
+      }, "navigator.preferences.colorScheme.requestOverride('') works like clearOverride()");
+      promise_test(async (t) => {
+        await navigator.preferences.colorScheme.requestOverride('light');
+        assert_true(window.matchMedia('(prefers-color-scheme: light)').matches, '(prefers-color-scheme: light) matches');
+        assert_equals(navigator.preferences.colorScheme.value, 'light');
+        await navigator.preferences.colorScheme.requestOverride('dark');
+        assert_true(window.matchMedia('(prefers-color-scheme: dark)').matches, '(prefers-color-scheme: dark) matches');
+        assert_equals(navigator.preferences.colorScheme.value, 'dark');
+        navigator.preferences.colorScheme.clearOverride();
+        assert_true(window.matchMedia('(prefers-color-scheme: light)').matches);
+        assert_equals(navigator.preferences.colorScheme.value, 'light');
+        t.done();
+      }, "navigator.preferences.colorScheme.requestOverride() updates (prefers-color-scheme)");
+      async_test((t) => {
+        t.add_cleanup(() => {
+          navigator.preferences.colorScheme.clearOverride();
+          navigator.preferences.colorScheme.onchange = null;
+        });
+        navigator.preferences.colorScheme.onchange = t.step_func_done();
+        navigator.preferences.colorScheme.requestOverride('dark');
+      }, "navigator.preferences.colorScheme fires change event when requesting override");
+      async_test((t) => {
+        t.add_cleanup(() => {
+          navigator.preferences.colorScheme.clearOverride();
+          navigator.preferences.colorScheme.onchange = null;
+        });
+        navigator.preferences.colorScheme.onchange = t.step_func_done();
+        navigator.preferences.colorScheme.requestOverride('light');
+      }, "navigator.preferences.colorScheme fires change event when requesting override (without value change)");
+      promise_test(async (t) => {
+        t.add_cleanup(() => {
+          navigator.preferences.colorScheme.clearOverride();
+          navigator.preferences.colorScheme.onchange = null;
+        });
+        await navigator.preferences.colorScheme.requestOverride('dark');
+        const eventPromise = changeEventPromise("colorScheme", t);
+        await navigator.preferences.colorScheme.clearOverride();
+        await eventPromise;
+      }, "navigator.preferences.colorScheme fires change event when clearing override");
+      promise_test(async (t) => {
+        t.add_cleanup(() => {
+          navigator.preferences.colorScheme.clearOverride();
+          navigator.preferences.colorScheme.onchange = null;
+        });
+        await navigator.preferences.colorScheme.requestOverride('light');
+        const eventPromise = changeEventPromise("colorScheme", t);
+        await navigator.preferences.colorScheme.clearOverride();
+        await eventPromise;
+      }, "navigator.preferences.colorScheme fires change event when clearing override (without value change)");
+    </script>
+  </body>
+</html>
diff --git a/tests/wpt/tests/css/mediaqueries/preferences-contrast.tentative.https.html b/tests/wpt/tests/css/mediaqueries/preferences-contrast.tentative.https.html
new file mode 100644
index 00000000000..51c4d278349
--- /dev/null
+++ b/tests/wpt/tests/css/mediaqueries/preferences-contrast.tentative.https.html
@@ -0,0 +1,131 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="utf-8" />
+    <title>WebPreferences Test: contrast attribute tests</title>
+    <link rel="author" title="Luke Warlow" href="mailto:lwarlow@igalia.com" />
+    <link rel="help" href="https://drafts.csswg.org/mediaqueries-5/#auto-pref%E2%91%A0" />
+    <script src="/resources/testharness.js"></script>
+    <script src="/resources/testharnessreport.js"></script>
+    <script src=./resources/preferences-helper.js></script>
+  </head>
+  <body>
+    <script>
+      test(() => {
+        assert_true('preferences' in navigator, 'navigator.preferences defined');
+        assert_true('contrast' in navigator.preferences, 'navigator.preferences.contrast defined');
+      }, "navigator.preferences.contrast supported");
+      test(() => {
+        assert_true('override' in navigator.preferences.contrast, 'navigator.preferences.contrast.override defined');
+        assert_equals(navigator.preferences.contrast.override, null);
+      }, "navigator.preferences.contrast.override supported");
+      test(() => {
+        assert_true('value' in navigator.preferences.contrast, 'navigator.preferences.contrast.value defined');
+        assert_equals(navigator.preferences.contrast.value, 'no-preference');
+      }, "navigator.preferences.contrast.value supported");
+      test(() => {
+        assert_true('validValues' in navigator.preferences.contrast, 'navigator.preferences.contrast.validValues defined');
+        assert_true(navigator.preferences.contrast.validValues.includes('more'), 'navigator.preferences.contrast.validValues includes "more"');
+        assert_true(navigator.preferences.contrast.validValues.includes('less'), 'navigator.preferences.contrast.validValues includes "less"');
+        assert_true(navigator.preferences.contrast.validValues.includes('no-preference'), 'navigator.preferences.contrast.validValues includes "no-preference"');
+        assert_false(navigator.preferences.contrast.validValues.includes('custom'), 'navigator.preferences.contrast.validValues excludes "custom"');
+      }, "navigator.preferences.contrast.validValues supported");
+      promise_test((t) => {
+        assert_true('requestOverride' in navigator.preferences.contrast, 'navigator.preferences.contrast.requestOverride() defined');
+        return navigator.preferences.contrast.requestOverride('this-is-an-invalid-value')
+          .then(() => {
+            assert_not_reached('requestOverride with invalid value should not resolve');
+          })
+          .catch((e) => {
+            assert_true(e instanceof DOMException);
+            assert_equals(navigator.preferences.contrast.override, null);
+            t.done();
+          });
+      }, "navigator.preferences.contrast.requestOverride() with invalid value throws");
+      promise_test((t) => {
+        return navigator.preferences.contrast.requestOverride('custom')
+          .then(() => {
+            assert_not_reached('requestOverride with invalid value should not resolve');
+          })
+          .catch((e) => {
+            assert_true(e instanceof DOMException);
+            assert_equals(navigator.preferences.contrast.override, null);
+            t.done();
+          });
+      }, "navigator.preferences.contrast.requestOverride('custom') throws");
+      promise_test(async (t) => {
+        assert_true('clearOverride' in navigator.preferences.contrast, 'navigator.preferences.contrast.clearOverride() defined');
+        await navigator.preferences.contrast.requestOverride('more');
+        assert_equals(navigator.preferences.contrast.override, 'more');
+        navigator.preferences.contrast.clearOverride();
+        assert_equals(navigator.preferences.contrast.override, null);
+        t.done();
+      }, "navigator.preferences.contrast.clearOverride() works");
+      promise_test(async (t) => {
+        await navigator.preferences.contrast.requestOverride('more');
+        assert_equals(navigator.preferences.contrast.override, 'more');
+        await navigator.preferences.contrast.requestOverride(null);
+        assert_equals(navigator.preferences.contrast.override, null);
+        t.done();
+      }, "navigator.preferences.contrast.requestOverride(null) works like clearOverride()");
+      promise_test(async (t) => {
+        await navigator.preferences.contrast.requestOverride('more');
+        assert_equals(navigator.preferences.contrast.override, 'more');
+        await navigator.preferences.contrast.requestOverride('');
+        assert_equals(navigator.preferences.contrast.override, null);
+        t.done();
+      }, "navigator.preferences.contrast.requestOverride('') works like clearOverride()");
+      promise_test(async (t) => {
+        await navigator.preferences.contrast.requestOverride('more');
+        assert_true(window.matchMedia('(prefers-contrast: more)').matches, '(prefers-contrast: more) matches');
+        assert_equals(navigator.preferences.contrast.value, 'more');
+        await navigator.preferences.contrast.requestOverride('no-preference');
+        assert_true(window.matchMedia('(prefers-contrast: no-preference)').matches, '(prefers-contrast: no-preference) matches');
+        assert_equals(navigator.preferences.contrast.value, 'no-preference');
+        await navigator.preferences.contrast.requestOverride('less');
+        assert_true(window.matchMedia('(prefers-contrast: less)').matches, '(prefers-contrast: less) matches');
+        assert_equals(navigator.preferences.contrast.value, 'less');
+        navigator.preferences.contrast.clearOverride();
+        assert_true(window.matchMedia('(prefers-contrast: no-preference)').matches);
+        assert_equals(navigator.preferences.contrast.value, 'no-preference');
+        t.done();
+      }, "navigator.preferences.contrast.requestOverride() updates (prefers-contrast)");
+      async_test((t) => {
+        t.add_cleanup(() => {
+          navigator.preferences.contrast.clearOverride();
+          navigator.preferences.contrast.onchange = null;
+        });
+        navigator.preferences.contrast.onchange = t.step_func_done();
+        navigator.preferences.contrast.requestOverride('less');
+      }, "navigator.preferences.contrast fires change event when requesting override");
+      async_test((t) => {
+        t.add_cleanup(() => {
+          navigator.preferences.contrast.clearOverride();
+          navigator.preferences.contrast.onchange = null;
+        });
+        navigator.preferences.contrast.onchange = t.step_func_done();
+        navigator.preferences.contrast.requestOverride('no-preference');
+      }, "navigator.preferences.contrast fires change event when requesting override (without value change)");
+      promise_test(async (t) => {
+        t.add_cleanup(() => {
+          navigator.preferences.contrast.clearOverride();
+          navigator.preferences.contrast.onchange = null;
+        });
+        await navigator.preferences.contrast.requestOverride('less');
+        const eventPromise = changeEventPromise("contrast", t);
+        await navigator.preferences.contrast.clearOverride();
+        await eventPromise;
+      }, "navigator.preferences.contrast fires change event when clearing override");
+      promise_test(async (t) => {
+        t.add_cleanup(() => {
+          navigator.preferences.contrast.clearOverride();
+          navigator.preferences.contrast.onchange = null;
+        });
+        await navigator.preferences.contrast.requestOverride('no-preference');
+        const eventPromise = changeEventPromise("contrast", t);
+        await navigator.preferences.contrast.clearOverride();
+        await eventPromise;
+      }, "navigator.preferences.contrast fires change event when clearing override (without value change)");
+    </script>
+  </body>
+</html>
diff --git a/tests/wpt/tests/css/mediaqueries/preferences-reducedData.tentative.https.html b/tests/wpt/tests/css/mediaqueries/preferences-reducedData.tentative.https.html
new file mode 100644
index 00000000000..5fe50ef2405
--- /dev/null
+++ b/tests/wpt/tests/css/mediaqueries/preferences-reducedData.tentative.https.html
@@ -0,0 +1,115 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="utf-8" />
+    <title>WebPreferences Test: reducedData attribute tests</title>
+    <link rel="author" title="Luke Warlow" href="mailto:lwarlow@igalia.com" />
+    <link rel="help" href="https://drafts.csswg.org/mediaqueries-5/#auto-pref%E2%91%A0" />
+    <script src="/resources/testharness.js"></script>
+    <script src="/resources/testharnessreport.js"></script>
+    <script src=./resources/preferences-helper.js></script>
+  </head>
+  <body>
+    <script>
+      test(() => {
+        assert_true('preferences' in navigator, 'navigator.preferences defined');
+        assert_true('reducedData' in navigator.preferences, 'navigator.preferences.reducedData defined');
+      }, "navigator.preferences.reducedData supported");
+      test(() => {
+        assert_true('override' in navigator.preferences.reducedData, 'navigator.preferences.reducedData.override defined');
+        assert_equals(navigator.preferences.reducedData.override, null);
+      }, "navigator.preferences.reducedData.override supported");
+      test(() => {
+        assert_true('value' in navigator.preferences.reducedData, 'navigator.preferences.reducedData.value defined');
+        assert_equals(navigator.preferences.reducedData.value, 'no-preference');
+      }, "navigator.preferences.reducedData.value supported");
+      test(() => {
+        assert_true('validValues' in navigator.preferences.reducedData, 'navigator.preferences.reducedData.validValues defined');
+        assert_true(navigator.preferences.reducedData.validValues.includes('reduce'), 'navigator.preferences.reducedData.validValues includes "reduce"');
+        assert_true(navigator.preferences.reducedData.validValues.includes('no-preference'), 'navigator.preferences.reducedData.validValues includes "no-preference"');
+      }, "navigator.preferences.reducedData.validValues supported");
+      promise_test((t) => {
+        assert_true('requestOverride' in navigator.preferences.reducedData, 'navigator.preferences.reducedData.requestOverride() defined');
+        return navigator.preferences.reducedData.requestOverride('this-is-an-invalid-value')
+          .then(() => {
+            assert_not_reached('requestOverride with invalid value should not resolve');
+          })
+          .catch((e) => {
+            assert_true(e instanceof DOMException);
+            assert_equals(navigator.preferences.reducedData.override, null);
+            t.done();
+          });
+      }, "navigator.preferences.reducedData.requestOverride() with invalid value throws");
+      promise_test(async (t) => {
+        assert_true('clearOverride' in navigator.preferences.reducedData, 'navigator.preferences.reducedData.clearOverride() defined');
+        await navigator.preferences.reducedData.requestOverride('reduce');
+        assert_equals(navigator.preferences.reducedData.override, 'reduce');
+        navigator.preferences.reducedData.clearOverride();
+        assert_equals(navigator.preferences.reducedData.override, null);
+        t.done();
+      }, "navigator.preferences.reducedData.clearOverride() supported");
+      promise_test(async (t) => {
+        await navigator.preferences.reducedData.requestOverride('reduce');
+        assert_equals(navigator.preferences.reducedData.override, 'reduce');
+        await navigator.preferences.reducedData.requestOverride(null);
+        assert_equals(navigator.preferences.reducedData.override, null);
+        t.done();
+      }, "navigator.preferences.reducedData.requestOverride(null) works like clearOverride()");
+      promise_test(async (t) => {
+        await navigator.preferences.reducedData.requestOverride('reduce');
+        assert_equals(navigator.preferences.reducedData.override, 'reduce');
+        await navigator.preferences.reducedData.requestOverride('');
+        assert_equals(navigator.preferences.reducedData.override, null);
+        t.done();
+      }, "navigator.preferences.reducedData.requestOverride('') works like clearOverride()");
+      promise_test(async (t) => {
+        await navigator.preferences.reducedData.requestOverride('no-preference');
+        assert_true(window.matchMedia('(prefers-reduced-data: no-preference)').matches, '(prefers-reduced-data: no-preference) matches');
+        assert_equals(navigator.preferences.reducedData.value, 'no-preference');
+        await navigator.preferences.reducedData.requestOverride('reduce');
+        assert_true(window.matchMedia('(prefers-reduced-data: reduce)').matches, '(prefers-reduced-data: reduce) matches');
+        assert_equals(navigator.preferences.reducedData.value, 'reduce');
+        navigator.preferences.reducedData.clearOverride();
+        assert_true(window.matchMedia('(prefers-reduced-data: no-preference)').matches);
+        assert_equals(navigator.preferences.reducedData.value, 'no-preference');
+        t.done();
+      }, "navigator.preferences.reducedData.requestOverride() updates (prefers-reduced-data)");
+      async_test((t) => {
+        t.add_cleanup(() => {
+          navigator.preferences.reducedData.clearOverride();
+          navigator.preferences.reducedData.onchange = null;
+        });
+        navigator.preferences.reducedData.onchange = t.step_func_done();
+        navigator.preferences.reducedData.requestOverride('reduce');
+      }, "navigator.preferences.reducedData fires change event when requesting override");
+      async_test((t) => {
+        t.add_cleanup(() => {
+          navigator.preferences.reducedData.clearOverride();
+          navigator.preferences.reducedData.onchange = null;
+        });
+        navigator.preferences.reducedData.onchange = t.step_func_done();
+        navigator.preferences.reducedData.requestOverride('no-preference');
+      }, "navigator.preferences.reducedData fires change event when requesting override (without value change)");
+      promise_test(async (t) => {
+        t.add_cleanup(() => {
+          navigator.preferences.reducedData.clearOverride();
+          navigator.preferences.reducedData.onchange = null;
+        });
+        await navigator.preferences.reducedData.requestOverride('reduce');
+        const eventPromise = changeEventPromise("reducedData", t);
+        await navigator.preferences.reducedData.clearOverride();
+        await eventPromise;
+      }, "navigator.preferences.reducedData fires change event when clearing override");
+      promise_test(async (t) => {
+        t.add_cleanup(() => {
+          navigator.preferences.reducedData.clearOverride();
+          navigator.preferences.reducedData.onchange = null;
+        });
+        await navigator.preferences.reducedData.requestOverride('no-preference');
+        const eventPromise = changeEventPromise("reducedData", t);
+        await navigator.preferences.reducedData.clearOverride();
+        await eventPromise;
+      }, "navigator.preferences.reducedData fires change event when clearing override (without value change)");
+    </script>
+  </body>
+</html>
diff --git a/tests/wpt/tests/css/mediaqueries/preferences-reducedMotion.tentative.https.html b/tests/wpt/tests/css/mediaqueries/preferences-reducedMotion.tentative.https.html
new file mode 100644
index 00000000000..2f2f7a40857
--- /dev/null
+++ b/tests/wpt/tests/css/mediaqueries/preferences-reducedMotion.tentative.https.html
@@ -0,0 +1,115 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="utf-8" />
+    <title>WebPreferences Test: reducedMotion attribute tests</title>
+    <link rel="author" title="Luke Warlow" href="mailto:lwarlow@igalia.com" />
+    <link rel="help" href="https://drafts.csswg.org/mediaqueries-5/#auto-pref%E2%91%A0" />
+    <script src="/resources/testharness.js"></script>
+    <script src="/resources/testharnessreport.js"></script>
+    <script src=./resources/preferences-helper.js></script>
+  </head>
+  <body>
+    <script>
+      test(() => {
+        assert_true('preferences' in navigator, 'navigator.preferences defined');
+        assert_true('reducedMotion' in navigator.preferences, 'navigator.preferences.reducedMotion defined');
+      }, "navigator.preferences.reducedMotion supported");
+      test(() => {
+        assert_true('override' in navigator.preferences.reducedMotion, 'navigator.preferences.reducedMotion.override defined');
+        assert_equals(navigator.preferences.reducedMotion.override, null);
+      }, "navigator.preferences.reducedMotion.override supported");
+      test(() => {
+        assert_true('value' in navigator.preferences.reducedMotion, 'navigator.preferences.reducedMotion.value defined');
+        assert_equals(navigator.preferences.reducedMotion.value, 'no-preference');
+      }, "navigator.preferences.reducedMotion.value supported");
+      test(() => {
+        assert_true('validValues' in navigator.preferences.reducedMotion, 'navigator.preferences.reducedMotion.validValues defined');
+        assert_true(navigator.preferences.reducedMotion.validValues.includes('reduce'), 'navigator.preferences.reducedMotion.validValues includes "reduce"');
+        assert_true(navigator.preferences.reducedMotion.validValues.includes('no-preference'), 'navigator.preferences.reducedMotion.validValues includes "no-preference"');
+      }, "navigator.preferences.reducedMotion.validValues supported");
+      promise_test((t) => {
+        assert_true('requestOverride' in navigator.preferences.reducedMotion, 'navigator.preferences.reducedMotion.requestOverride() defined');
+        return navigator.preferences.reducedMotion.requestOverride('this-is-an-invalid-value')
+          .then(() => {
+            assert_not_reached('requestOverride with invalid value should not resolve');
+          })
+          .catch((e) => {
+            assert_true(e instanceof DOMException);
+            assert_equals(navigator.preferences.reducedMotion.override, null);
+            t.done();
+          });
+      }, "navigator.preferences.reducedMotion.requestOverride() with invalid value throws");
+      promise_test(async (t) => {
+        assert_true('clearOverride' in navigator.preferences.reducedMotion, 'navigator.preferences.reducedMotion.clearOverride() defined');
+        await navigator.preferences.reducedMotion.requestOverride('reduce');
+        assert_equals(navigator.preferences.reducedMotion.override, 'reduce');
+        navigator.preferences.reducedMotion.clearOverride();
+        assert_equals(navigator.preferences.reducedMotion.override, null);
+        t.done();
+      }, "navigator.preferences.reducedMotion.clearOverride() supported");
+      promise_test(async (t) => {
+        await navigator.preferences.reducedMotion.requestOverride('reduce');
+        assert_equals(navigator.preferences.reducedMotion.override, 'reduce');
+        await navigator.preferences.reducedMotion.requestOverride(null);
+        assert_equals(navigator.preferences.reducedMotion.override, null);
+        t.done();
+      }, "navigator.preferences.reducedMotion.requestOverride(null) works like clearOverride()");
+      promise_test(async (t) => {
+        await navigator.preferences.reducedMotion.requestOverride('reduce');
+        assert_equals(navigator.preferences.reducedMotion.override, 'reduce');
+        await navigator.preferences.reducedMotion.requestOverride('');
+        assert_equals(navigator.preferences.reducedMotion.override, null);
+        t.done();
+      }, "navigator.preferences.reducedMotion.requestOverride('') works like clearOverride()");
+      promise_test(async (t) => {
+        await navigator.preferences.reducedMotion.requestOverride('no-preference');
+        assert_true(window.matchMedia('(prefers-reduced-motion: no-preference)').matches, '(prefers-reduced-motion: no-preference) matches');
+        assert_equals(navigator.preferences.reducedMotion.value, 'no-preference');
+        await navigator.preferences.reducedMotion.requestOverride('reduce');
+        assert_true(window.matchMedia('(prefers-reduced-motion: reduce)').matches, '(prefers-reduced-motion: reduce) matches');
+        assert_equals(navigator.preferences.reducedMotion.value, 'reduce');
+        navigator.preferences.reducedMotion.clearOverride();
+        assert_true(window.matchMedia('(prefers-reduced-motion: no-preference)').matches);
+        assert_equals(navigator.preferences.reducedMotion.value, 'no-preference');
+        t.done();
+      }, "navigator.preferences.reducedMotion.requestOverride() updates (prefers-reduced-motion)");
+      async_test((t) => {
+        t.add_cleanup(() => {
+          navigator.preferences.reducedMotion.clearOverride();
+          navigator.preferences.reducedMotion.onchange = null;
+        });
+        navigator.preferences.reducedMotion.onchange = t.step_func_done();
+        navigator.preferences.reducedMotion.requestOverride('reduce');
+      }, "navigator.preferences.reducedMotion fires change event when requesting override");
+      async_test((t) => {
+        t.add_cleanup(() => {
+          navigator.preferences.reducedMotion.clearOverride();
+          navigator.preferences.reducedMotion.onchange = null;
+        });
+        navigator.preferences.reducedMotion.onchange = t.step_func_done();
+        navigator.preferences.reducedMotion.requestOverride('no-preference');
+      }, "navigator.preferences.reducedMotion fires change event when requesting override (without value change)");
+      promise_test(async (t) => {
+        t.add_cleanup(() => {
+          navigator.preferences.reducedMotion.clearOverride();
+          navigator.preferences.reducedMotion.onchange = null;
+        });
+        await navigator.preferences.reducedMotion.requestOverride('reduce');
+        const eventPromise = changeEventPromise("reducedMotion", t);
+        await navigator.preferences.reducedMotion.clearOverride();
+        await eventPromise;
+      }, "navigator.preferences.reducedMotion fires change event when clearing override");
+      promise_test(async (t) => {
+        t.add_cleanup(() => {
+          navigator.preferences.reducedMotion.clearOverride();
+          navigator.preferences.reducedMotion.onchange = null;
+        });
+        await navigator.preferences.reducedMotion.requestOverride('no-preference');
+        const eventPromise = changeEventPromise("reducedMotion", t);
+        await navigator.preferences.reducedMotion.clearOverride();
+        await eventPromise;
+      }, "navigator.preferences.reducedMotion fires change event when clearing override (without value change)");
+    </script>
+  </body>
+</html>
diff --git a/tests/wpt/tests/css/mediaqueries/preferences-reducedTransparency.tentative.https.html b/tests/wpt/tests/css/mediaqueries/preferences-reducedTransparency.tentative.https.html
new file mode 100644
index 00000000000..73900069abc
--- /dev/null
+++ b/tests/wpt/tests/css/mediaqueries/preferences-reducedTransparency.tentative.https.html
@@ -0,0 +1,115 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="utf-8" />
+    <title>WebPreferences Test: reducedTransparency attribute tests</title>
+    <link rel="author" title="Luke Warlow" href="mailto:lwarlow@igalia.com" />
+    <link rel="help" href="https://drafts.csswg.org/mediaqueries-5/#auto-pref%E2%91%A0" />
+    <script src="/resources/testharness.js"></script>
+    <script src="/resources/testharnessreport.js"></script>
+    <script src=./resources/preferences-helper.js></script>
+  </head>
+  <body>
+    <script>
+      test(() => {
+        assert_true('preferences' in navigator, 'navigator.preferences defined');
+        assert_true('reducedTransparency' in navigator.preferences, 'navigator.preferences.reducedTransparency defined');
+      }, "navigator.preferences.reducedTransparency supported");
+      test(() => {
+        assert_true('override' in navigator.preferences.reducedTransparency, 'navigator.preferences.reducedTransparency.override defined');
+        assert_equals(navigator.preferences.reducedTransparency.override, null);
+      }, "navigator.preferences.reducedTransparency.override supported");
+      test(() => {
+        assert_true('value' in navigator.preferences.reducedTransparency, 'navigator.preferences.reducedTransparency.value defined');
+        assert_equals(navigator.preferences.reducedTransparency.value, 'no-preference');
+      }, "navigator.preferences.reducedTransparency.value supported");
+      test(() => {
+        assert_true('validValues' in navigator.preferences.reducedTransparency, 'navigator.preferences.reducedTransparency.validValues defined');
+        assert_true(navigator.preferences.reducedTransparency.validValues.includes('reduce'), 'navigator.preferences.reducedTransparency.validValues includes "reduce"');
+        assert_true(navigator.preferences.reducedTransparency.validValues.includes('no-preference'), 'navigator.preferences.reducedTransparency.validValues includes "no-preference"');
+      }, "navigator.preferences.reducedTransparency.validValues supported");
+      promise_test((t) => {
+        assert_true('requestOverride' in navigator.preferences.reducedTransparency, 'navigator.preferences.reducedTransparency.requestOverride defined');
+        return navigator.preferences.reducedTransparency.requestOverride('this-is-an-invalid-value')
+          .then(() => {
+            assert_not_reached('requestOverride with invalid value should not resolve');
+          })
+          .catch((e) => {
+            assert_true(e instanceof DOMException);
+            assert_equals(navigator.preferences.reducedTransparency.override, null);
+            t.done();
+          });
+      }, "navigator.preferences.reducedTransparency.requestOverride() with invalid value throws");
+      promise_test(async (t) => {
+        assert_true('clearOverride' in navigator.preferences.reducedTransparency, 'navigator.preferences.reducedTransparency.clearOverride() defined');
+        await navigator.preferences.reducedTransparency.requestOverride('reduce');
+        assert_equals(navigator.preferences.reducedTransparency.override, 'reduce');
+        navigator.preferences.reducedTransparency.clearOverride();
+        assert_equals(navigator.preferences.reducedTransparency.override, null);
+        t.done();
+      }, "navigator.preferences.reducedTransparency.clearOverride() supported");
+      promise_test(async (t) => {
+        await navigator.preferences.reducedTransparency.requestOverride('reduce');
+        assert_equals(navigator.preferences.reducedTransparency.override, 'reduce');
+        await navigator.preferences.reducedTransparency.requestOverride(null);
+        assert_equals(navigator.preferences.reducedTransparency.override, null);
+        t.done();
+      }, "navigator.preferences.reducedTransparency.requestOverride(null) works like clearOverride()");
+      promise_test(async (t) => {
+        await navigator.preferences.reducedTransparency.requestOverride('reduce');
+        assert_equals(navigator.preferences.reducedTransparency.override, 'reduce');
+        await navigator.preferences.reducedTransparency.requestOverride('');
+        assert_equals(navigator.preferences.reducedTransparency.override, null);
+        t.done();
+      }, "navigator.preferences.reducedTransparency.requestOverride('') works like clearOverride()");
+      promise_test(async (t) => {
+        await navigator.preferences.reducedTransparency.requestOverride('no-preference');
+        assert_true(window.matchMedia('(prefers-reduced-transparency: no-preference)').matches, '(prefers-reduced-transparency: no-preference) matches');
+        assert_equals(navigator.preferences.reducedTransparency.value, 'no-preference');
+        await navigator.preferences.reducedTransparency.requestOverride('reduce');
+        assert_true(window.matchMedia('(prefers-reduced-transparency: reduce)').matches, '(prefers-reduced-transparency: reduce) matches');
+        assert_equals(navigator.preferences.reducedTransparency.value, 'reduce');
+        navigator.preferences.reducedTransparency.clearOverride();
+        assert_true(window.matchMedia('(prefers-reduced-transparency: no-preference)').matches);
+        assert_equals(navigator.preferences.reducedTransparency.value, 'no-preference');
+        t.done();
+      }, "navigator.preferences.reducedTransparency.requestOverride() updates (prefers-reduced-transparency)");
+      async_test((t) => {
+        t.add_cleanup(() => {
+          navigator.preferences.reducedTransparency.clearOverride();
+          navigator.preferences.reducedTransparency.onchange = null;
+        });
+        navigator.preferences.reducedTransparency.onchange = t.step_func_done();
+        navigator.preferences.reducedTransparency.requestOverride('reduce');
+      }, "navigator.preferences.reducedTransparency fires change event when requesting override");
+      async_test((t) => {
+        t.add_cleanup(() => {
+          navigator.preferences.reducedTransparency.clearOverride();
+          navigator.preferences.reducedTransparency.onchange = null;
+        });
+        navigator.preferences.reducedTransparency.onchange = t.step_func_done();
+        navigator.preferences.reducedTransparency.requestOverride('no-preference');
+      }, "navigator.preferences.reducedTransparency fires change event when requesting override (without value change)");
+      promise_test(async (t) => {
+        t.add_cleanup(() => {
+          navigator.preferences.reducedTransparency.clearOverride();
+          navigator.preferences.reducedTransparency.onchange = null;
+        });
+        await navigator.preferences.reducedTransparency.requestOverride('reduce');
+        const eventPromise = changeEventPromise("reducedTransparency", t);
+        await navigator.preferences.reducedTransparency.clearOverride();
+        await eventPromise;
+      }, "navigator.preferences.reducedTransparency fires change event when clearing override");
+      promise_test(async (t) => {
+        t.add_cleanup(() => {
+          navigator.preferences.reducedTransparency.clearOverride();
+          navigator.preferences.reducedTransparency.onchange = null;
+        });
+        await navigator.preferences.reducedTransparency.requestOverride('no-preference');
+        const eventPromise = changeEventPromise("reducedTransparency", t);
+        await navigator.preferences.reducedTransparency.clearOverride();
+        await eventPromise;
+      }, "navigator.preferences.reducedTransparency fires change event when clearing override (without value change)");
+    </script>
+  </body>
+</html>
diff --git a/tests/wpt/tests/css/mediaqueries/resources/preferences-helper.js b/tests/wpt/tests/css/mediaqueries/resources/preferences-helper.js
new file mode 100644
index 00000000000..35097abad24
--- /dev/null
+++ b/tests/wpt/tests/css/mediaqueries/resources/preferences-helper.js
@@ -0,0 +1,12 @@
+window.changeEventPromise = function changeEventPromise(preference, t) {
+    return Promise.race([
+        new Promise(resolve => {
+            navigator.preferences[preference].onchange = resolve;
+        }),
+        new Promise((resolve, reject) => {
+            t.step_timeout(() => {
+                reject(`Change event for ${preference} preference not fired.`);
+            }, 500);
+        })
+    ]);
+}
\ No newline at end of file
diff --git a/tests/wpt/tests/device-bound-session-credentials/federated-session.https.html b/tests/wpt/tests/device-bound-session-credentials/federated-session.https.html
new file mode 100644
index 00000000000..06feb4241ff
--- /dev/null
+++ b/tests/wpt/tests/device-bound-session-credentials/federated-session.https.html
@@ -0,0 +1,139 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/device-bound-session-credentials/helper.js" type="module"></script>
+
+<script type="module">
+  import {
+    addCookieAndSessionCleanup,
+    configureServer,
+    documentHasCookie,
+    expireCookie,
+    setupShardedServerState,
+    waitForCookie
+  } from "/device-bound-session-credentials/helper.js";
+
+  async function registerProviderSession(t) {
+    const expectedCookieAndValue = "auth_cookie=abcdef0123";
+    const expectedCookieAndAttributes = `${expectedCookieAndValue};Domain=${location.hostname};Path=/device-bound-session-credentials`;
+
+    // Prompt starting a session, and wait until registration completes.
+    const loginResponse = await fetch('login.py');
+    assert_equals(loginResponse.status, 200);
+    await waitForCookie(expectedCookieAndValue, /*expectCookie=*/true);
+  }
+
+  async function getKey(id) {
+    const keyResponse = await fetch(`get_key.py?${id}`);
+    assert_equals(keyResponse.status, 200);
+    return keyResponse.text();
+  }
+
+  async function getSessionIds() {
+    const response = await fetch('get_session_ids.py');
+    assert_equals(response.status, 200);
+    return response.json();
+  }
+
+  async function registerRelyingSession(t, host, sessionId, key, expectSuccess) {
+    const expectedCookieAndValue = "relying_auth_cookie=abcdef0123";
+    const expectedCookieAttributes = `Domain=${location.hostname};Path=/device-bound-session-credentials`;
+    const expectedCookieAndAttributes = `${expectedCookieAndValue};${expectedCookieAttributes}`;
+
+    // Despite registration happening on a subdomain, make the session
+    // visible on the parent domain. This makes it easier to test for
+    // its presence.
+    await configureServer({
+      cookieDetails: [
+        {
+          nameAndValue: expectedCookieAndValue,
+          attributes: expectedCookieAttributes,
+        }
+      ],
+      scopeOrigin: location.origin,
+      providerUrl: location.origin + "/",
+      providerSessionId: sessionId,
+      providerKey: key
+    });
+
+    // Prompt starting a session, and wait until registration completes.
+    const loginResponse = await fetch(`https://${host}/device-bound-session-credentials/login.py`, {credentials: "include"});
+    assert_equals(loginResponse.status, 200);
+    await waitForCookie(expectedCookieAndValue, /*expectCookie=*/expectSuccess);
+
+    if (!expectSuccess) {
+      return;
+    }
+
+    // Confirm that expiring the cookie still leads to a request with the cookie set (refresh occurs).
+    expireCookie(expectedCookieAndAttributes);
+    assert_false(documentHasCookie(expectedCookieAndValue));
+    const authResponse = await fetch('verify_authenticated.py', {
+      method: 'POST',
+      body: expectedCookieAndValue
+    });
+    assert_equals(authResponse.status, 200);
+    assert_true(documentHasCookie(expectedCookieAndValue));
+
+    // Confirm that the relying session shares keys
+    const sessionIds = await getSessionIds();
+    const relyingSessionIds = sessionIds.filter(id => id !== sessionId);
+    assert_equals(relyingSessionIds.length, 1);
+    const relyingSessionId = relyingSessionIds[0];
+
+    const newKey = await getKey(relyingSessionId);
+    assert_equals(key, newKey);
+  }
+
+  promise_test(async t => {
+    addCookieAndSessionCleanup(t);
+
+    await setupShardedServerState();
+
+    await registerProviderSession(t);
+    const sessionIds = await getSessionIds();
+    assert_equals(sessionIds.length, 1);
+
+    const keyThumbprint = await getKey(sessionIds[0]);
+    await registerRelyingSession(t, "www." + location.host, sessionIds[0], keyThumbprint, /*expect_success=*/true);
+  }, "Successful federated session registration");
+
+  promise_test(async t => {
+    addCookieAndSessionCleanup(t);
+
+    await setupShardedServerState();
+
+    await registerProviderSession(t);
+    const sessionIds = await getSessionIds();
+    assert_equals(sessionIds.length, 1);
+
+    await registerRelyingSession(t, "www." + location.host, sessionIds[0], "not-the-thumbprint", /*expect_success=*/false);
+  }, "Invalid thumbprint")
+
+  promise_test(async t => {
+    addCookieAndSessionCleanup(t);
+
+    await setupShardedServerState();
+
+    await registerProviderSession(t);
+    const sessionIds = await getSessionIds();
+    assert_equals(sessionIds.length, 1);
+
+    const keyThumbprint = await getKey(sessionIds[0]);
+    await registerRelyingSession(t, "www." + location.host, "not-the-session-id", keyThumbprint, /*expect_success=*/false);
+  }, "Invalid provider session id");
+
+  promise_test(async t => {
+    addCookieAndSessionCleanup(t);
+
+    await setupShardedServerState();
+
+    await registerProviderSession(t);
+    const sessionIds = await getSessionIds();
+    assert_equals(sessionIds.length, 1);
+
+    const keyThumbprint = await getKey(sessionIds[0]);
+    await registerRelyingSession(t, "www1." + location.host, sessionIds[0], keyThumbprint, /*expect_success=*/false);
+  }, "Not authorized by .well-known");
+</script>
diff --git a/tests/wpt/tests/device-bound-session-credentials/get_key.py b/tests/wpt/tests/device-bound-session-credentials/get_key.py
new file mode 100644
index 00000000000..e01683843a2
--- /dev/null
+++ b/tests/wpt/tests/device-bound-session-credentials/get_key.py
@@ -0,0 +1,10 @@
+import importlib
+import json
+jwt_helper = importlib.import_module('device-bound-session-credentials.jwt_helper')
+session_manager = importlib.import_module('device-bound-session-credentials.session_manager')
+
+def main(request, response):
+    test_session_manager = session_manager.find_for_request(request)
+    key = test_session_manager.get_session_key(int(request.url_parts.query))
+    return (200, [], jwt_helper.thumbprint_for_jwk(key))
+
diff --git a/tests/wpt/tests/device-bound-session-credentials/get_session_ids.py b/tests/wpt/tests/device-bound-session-credentials/get_session_ids.py
new file mode 100644
index 00000000000..6a9f3f14ef1
--- /dev/null
+++ b/tests/wpt/tests/device-bound-session-credentials/get_session_ids.py
@@ -0,0 +1,9 @@
+import importlib
+import json
+jwt_helper = importlib.import_module('device-bound-session-credentials.jwt_helper')
+session_manager = importlib.import_module('device-bound-session-credentials.session_manager')
+
+def main(request, response):
+    test_session_manager = session_manager.find_for_request(request)
+    session_ids = test_session_manager.get_session_ids()
+    return (200, [], json.dumps(session_ids))
diff --git a/tests/wpt/tests/device-bound-session-credentials/jwt_helper.py b/tests/wpt/tests/device-bound-session-credentials/jwt_helper.py
index 53f8a364fcd..4edcddb1962 100644
--- a/tests/wpt/tests/device-bound-session-credentials/jwt_helper.py
+++ b/tests/wpt/tests/device-bound-session-credentials/jwt_helper.py
@@ -74,3 +74,27 @@ def decode_base64(encoded_data):
 
 def decode_base64_json(encoded_data):
     return json.loads(decode_base64(encoded_data))
+
+def thumbprint_for_jwk(jwk):
+    filtered_jwk = None
+    if jwk['kty'] == 'RSA':
+        filtered_jwk = dict()
+        filtered_jwk['kty'] = jwk['kty']
+        filtered_jwk['n'] = jwk['n']
+        filtered_jwk['e'] = jwk['e']
+    elif jwk['kty'] == 'EC':
+        filtered_jwk = dict()
+        filtered_jwk['kty'] = jwk['kty']
+        filtered_jwk['crv'] = jwk['crv']
+        filtered_jwk['x'] = jwk['x']
+        filtered_jwk['y'] = jwk['y']
+    else:
+        return None
+
+    serialized_jwk = json.dumps(filtered_jwk, sort_keys=True, separators=(',',':'))
+
+    digest = hashes.Hash(hashes.SHA256())
+    digest.update(serialized_jwk.encode("utf-8"))
+
+    thumbprint_base64 = base64.b64encode(digest.finalize(), altchars=b"-_").rstrip(b"=")
+    return thumbprint_base64.decode('ascii')
diff --git a/tests/wpt/tests/device-bound-session-credentials/login.py b/tests/wpt/tests/device-bound-session-credentials/login.py
index 8c77d31ed47..22b0beeaf3e 100644
--- a/tests/wpt/tests/device-bound-session-credentials/login.py
+++ b/tests/wpt/tests/device-bound-session-credentials/login.py
@@ -19,14 +19,25 @@ def main(request, response):
         if maybe_registration_url is not None:
             registration_url = maybe_registration_url
 
-    authorization_value = session_manager.find_for_request(request).get_authorization_value()
-    authorization_header = ""
+    test_session_manager = session_manager.find_for_request(request)
+
+    header_items = ["(RS256)",'challenge="login_challenge_value"',f'path="{registration_url}"']
+    authorization_value = test_session_manager.get_authorization_value()
     if authorization_value is not None:
-        authorization_header = f';authorization="{authorization_value}"'
+        header_items.append(f'authorization="{authorization_value}"')
+    provider_session_id = test_session_manager.get_provider_session_id()
+    if provider_session_id is not None:
+        header_items.append(f'provider_session_id="{provider_session_id}"')
+    provider_url = test_session_manager.get_provider_url()
+    if provider_url is not None:
+        header_items.append(f'provider_url="{provider_url}"')
+    provider_key = test_session_manager.get_provider_key()
+    if provider_key is not None:
+        header_items.append(f'provider_key="{provider_key}"')
 
     registrations = []
     for i in range(num_sessions):
-        registrations.append(('Sec-Session-Registration', f'(RS256);challenge="login_challenge_value";path="{registration_url}"{authorization_header}'))
+        registrations.append(('Sec-Session-Registration', ";".join(header_items)))
 
     headers = []
     if request.headers.get(b"origin") is not None:
diff --git a/tests/wpt/tests/device-bound-session-credentials/session_manager.py b/tests/wpt/tests/device-bound-session-credentials/session_manager.py
index 779d1435ac7..ac43c929025 100644
--- a/tests/wpt/tests/device-bound-session-credentials/session_manager.py
+++ b/tests/wpt/tests/device-bound-session-credentials/session_manager.py
@@ -47,6 +47,9 @@ class SessionManager:
         self.refresh_endpoint_unavailable = False
         self.response_session_id_override = None
         self.allowed_refresh_initiators = ["*"]
+        self.provider_session_id = None
+        self.provider_url = None
+        self.provider_key = None
 
     def next_session_id(self):
         return len(self.session_to_key_map)
@@ -132,6 +135,18 @@ class SessionManager:
         if allowed_refresh_initiators is not None:
             self.allowed_refresh_initiators = allowed_refresh_initiators
 
+        provider_session_id = configuration.get("providerSessionId")
+        if provider_session_id is not None:
+            self.provider_session_id = provider_session_id
+
+        provider_url = configuration.get("providerUrl")
+        if provider_url is not None:
+            self.provider_url = provider_url
+
+        provider_key = configuration.get("providerKey")
+        if provider_key is not None:
+            self.provider_key = provider_key
+
     def get_should_refresh_end_session(self):
         return self.should_refresh_end_session
 
@@ -215,3 +230,12 @@ class SessionManager:
 
     def get_refresh_endpoint_unavailable(self):
         return self.refresh_endpoint_unavailable
+
+    def get_provider_session_id(self):
+        return self.provider_session_id
+
+    def get_provider_url(self):
+        return self.provider_url
+
+    def get_provider_key(self):
+        return self.provider_key
diff --git a/tests/wpt/tests/dom/observable/tentative/observable-constructor.any.js b/tests/wpt/tests/dom/observable/tentative/observable-constructor.any.js
index d065c7f0443..a080e0201c4 100644
--- a/tests/wpt/tests/dom/observable/tentative/observable-constructor.any.js
+++ b/tests/wpt/tests/dom/observable/tentative/observable-constructor.any.js
@@ -1199,3 +1199,33 @@ test(() => {
     'after final abort'
   ]);
 }, "Teardown runs after last unsubscribe regardless of unsubscription order");
+
+test(() => {
+  const results = [];
+  const source = new Observable(subscriber => {
+    subscriber.next(1);
+    subscriber.next(2);
+    subscriber.complete();
+  });
+
+  source.subscribe(v => {
+    results.push(`${v}-first-sub`);
+    if (v === 1) {
+      // This new subscription adds a new internal observer to the subscriber's
+      // internal observer list, but it does not get the value `1` that the
+      // subscriber is currently pushing. This is because the Subscriber
+      // iterates over a snapshot of its internal observers to push values to.
+      // The first value that this new subscription will see is `2`.
+      //
+      // See https://github.com/WICG/observable/pull/214.
+      source.subscribe(v => results.push(`${v}-second-sub`));
+    }
+  });
+
+  assert_array_equals(results, [
+    "1-first-sub",
+
+    "2-first-sub",
+    "2-second-sub",
+  ]);
+}, "Subscriber iterates over a snapshot of its internal observers");
diff --git a/tests/wpt/tests/editing/crashtests/collapse-selection-into-textarea-and-createLink.html b/tests/wpt/tests/editing/crashtests/collapse-selection-into-textarea-and-createLink.html
new file mode 100644
index 00000000000..f3f0a85a5d9
--- /dev/null
+++ b/tests/wpt/tests/editing/crashtests/collapse-selection-into-textarea-and-createLink.html
@@ -0,0 +1,31 @@
+<!doctype html>
+<html>
+<head>
+<meta charset="utf-8">
+<script>
+"use strict";
+
+function editingHostOnFocus() {
+  document.execCommand("selectAll", false)
+}
+function imgOnError() {
+  document.designMode = "on"
+}
+function unknownElementOnFocus() {
+  document.designMode = "off"
+  getSelection().setPosition(document.querySelector("textarea"));
+  document.execCommand("createLink", false, "x")
+}
+</script>
+</head>
+<body>
+<tt onfocusin="editingHostOnFocus()" contenteditable="true">
+<iframe></iframe>
+<textarea></textarea>
+<content onfocusout="unknownElementOnFocus()">
+<input autofocus="">
+<img onerror="imgOnError()" src="x">
+</content>
+</tt>
+</body>
+</html>
diff --git a/tests/wpt/tests/fedcm/fedcm-flexible-token/basic.https.html b/tests/wpt/tests/fedcm/fedcm-flexible-token/basic.https.html
new file mode 100644
index 00000000000..cbbe0b8abe2
--- /dev/null
+++ b/tests/wpt/tests/fedcm/fedcm-flexible-token/basic.https.html
@@ -0,0 +1,68 @@
+<!DOCTYPE html>
+<title>FedCM Flexible Token Formats - Basic Types</title>
+<meta name="timeout" content="long">
+<link rel="help" href="https://fedidcg.github.io/FedCM">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/resources/testdriver.js"></script>
+<script src="/resources/testdriver-vendor.js"></script>
+
+<script type="module">
+import {fedcm_test,
+        fedcm_get_flexible_tokens_credential} from '../support/fedcm-helper.sub.js';
+
+fedcm_test(async t => {
+  const credential = await fedcm_get_flexible_tokens_credential(t, 'string');
+  assert_true(credential instanceof IdentityCredential);
+  assert_equals(typeof credential.token, 'string');
+  assert_equals(credential.token, 'simple_string_token');
+}, 'FedCM should accept string tokens');
+
+fedcm_test(async t => {
+  const credential = await fedcm_get_flexible_tokens_credential(t, 'positive-number');
+  assert_true(credential instanceof IdentityCredential);
+  assert_equals(typeof credential.token, 'number');
+  assert_equals(credential.token, 12345);
+}, 'FedCM should accept number tokens');
+
+fedcm_test(async t => {
+  const credential = await fedcm_get_flexible_tokens_credential(t, 'negative-number');
+  assert_true(credential instanceof IdentityCredential);
+  assert_equals(typeof credential.token, 'number');
+  assert_equals(credential.token, -42);
+}, 'FedCM should accept negative number tokens');
+
+fedcm_test(async t => {
+  const credential = await fedcm_get_flexible_tokens_credential(t, 'boolean-true');
+  assert_true(credential instanceof IdentityCredential);
+  assert_equals(typeof credential.token, 'boolean');
+  assert_equals(credential.token, true);
+}, 'FedCM should accept boolean tokens (true)');
+
+fedcm_test(async t => {
+  const credential = await fedcm_get_flexible_tokens_credential(t, 'boolean-false');
+  assert_equals(typeof credential.token, 'boolean');
+  assert_equals(credential.token, false);
+}, 'FedCM should accept boolean tokens (false)');
+
+fedcm_test(async t => {
+  const credential = await fedcm_get_flexible_tokens_credential(t, 'null');
+  assert_true(credential instanceof IdentityCredential);
+  assert_equals(credential.token, null);
+}, 'FedCM should accept null tokens');
+
+fedcm_test(async t => {
+  const credential = await fedcm_get_flexible_tokens_credential(t, 'zero');
+  assert_true(credential instanceof IdentityCredential);
+  assert_equals(typeof credential.token, 'number');
+  assert_equals(credential.token, 0);
+}, 'FedCM should accept zero as token value');
+
+fedcm_test(async t => {
+  const credential = await fedcm_get_flexible_tokens_credential(t, 'float');
+  assert_true(credential instanceof IdentityCredential);
+  assert_equals(typeof credential.token, 'number');
+  assert_approx_equals(credential.token, 3.14159, 0.00001);
+}, 'FedCM should accept floating point number tokens');
+
+</script>
\ No newline at end of file
diff --git a/tests/wpt/tests/fedcm/fedcm-flexible-token/complex.https.html b/tests/wpt/tests/fedcm/fedcm-flexible-token/complex.https.html
new file mode 100644
index 00000000000..47369f3a9bb
--- /dev/null
+++ b/tests/wpt/tests/fedcm/fedcm-flexible-token/complex.https.html
@@ -0,0 +1,67 @@
+<!DOCTYPE html>
+<title>FedCM Flexible Token Formats - Complex Types</title>
+<meta name="timeout" content="long">
+<link rel="help" href="https://fedidcg.github.io/FedCM">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/resources/testdriver.js"></script>
+<script src="/resources/testdriver-vendor.js"></script>
+
+<script type="module">
+import {fedcm_test,
+        fedcm_get_flexible_tokens_credential} from '../support/fedcm-helper.sub.js';
+
+fedcm_test(async t => {
+  const credential = await fedcm_get_flexible_tokens_credential(t, 'array');
+  assert_true(credential instanceof IdentityCredential);
+  assert_true(Array.isArray(credential.token));
+  assert_array_equals(credential.token, ['token1', 'token2', 'token3']);
+}, 'FedCM should accept array tokens');
+
+fedcm_test(async t => {
+  const credential = await fedcm_get_flexible_tokens_credential(t, 'empty-array');
+  assert_true(credential instanceof IdentityCredential);
+  assert_true(Array.isArray(credential.token));
+  assert_equals(credential.token.length, 0);
+}, 'FedCM should accept empty array tokens');
+
+fedcm_test(async t => {
+  const credential = await fedcm_get_flexible_tokens_credential(t, 'mixed-array');
+  assert_true(credential instanceof IdentityCredential);
+  assert_true(Array.isArray(credential.token));
+  assert_equals(credential.token.length, 5);
+  assert_equals(credential.token[0], 'string');
+  assert_equals(credential.token[1], 123);
+  assert_equals(credential.token[2], true);
+  assert_equals(credential.token[3], null);
+  assert_equals(typeof credential.token[4], 'object');
+}, 'FedCM should accept mixed-type array tokens');
+
+fedcm_test(async t => {
+  const credential = await fedcm_get_flexible_tokens_credential(t, 'object');
+  assert_true(credential instanceof IdentityCredential);
+  assert_equals(typeof credential.token, 'object');
+  assert_not_equals(credential.token, null);
+  assert_equals(credential.token.access_token, 'abc123');
+  assert_equals(credential.token.token_type, 'Bearer');
+  assert_equals(credential.token.expires_in, 3600);
+}, 'FedCM should accept object tokens');
+
+fedcm_test(async t => {
+  const credential = await fedcm_get_flexible_tokens_credential(t, 'empty-object');
+  assert_true(credential instanceof IdentityCredential);
+  assert_equals(typeof credential.token, 'object');
+  assert_not_equals(credential.token, null);
+  assert_array_equals(Object.keys(credential.token), []);
+}, 'FedCM should accept empty object tokens');
+
+fedcm_test(async t => {
+  const credential = await fedcm_get_flexible_tokens_credential(t, 'nested-object');
+  assert_true(credential instanceof IdentityCredential);
+  assert_equals(typeof credential.token, 'object');
+  assert_equals(credential.token.user.id, '123');
+  assert_equals(credential.token.user.profile.name, 'Test User');
+  assert_equals(credential.token.user.profile.preferences.theme, 'dark');
+}, 'FedCM should accept nested object tokens');
+
+</script>
\ No newline at end of file
diff --git a/tests/wpt/tests/fedcm/support/fedcm-helper.sub.js b/tests/wpt/tests/fedcm/support/fedcm-helper.sub.js
index 466b362a944..915eed6f226 100644
--- a/tests/wpt/tests/fedcm/support/fedcm-helper.sub.js
+++ b/tests/wpt/tests/fedcm/support/fedcm-helper.sub.js
@@ -355,3 +355,12 @@ fedcm/support/${manifest_filename}`;
       accountHint: accountHint
   };
 }
+
+export async function fedcm_get_flexible_tokens_credential(t, type) {
+  const options = request_options_with_mediation_required(`manifest_flexible_tokens.json`);
+  options.identity.providers[0].params = {
+      "token_type": type
+  };
+  await select_manifest(t, options);
+  return await fedcm_get_and_select_first_account(t, options);
+}
diff --git a/tests/wpt/tests/fedcm/support/flexible_tokens.py b/tests/wpt/tests/fedcm/support/flexible_tokens.py
new file mode 100644
index 00000000000..72971fa71f1
--- /dev/null
+++ b/tests/wpt/tests/fedcm/support/flexible_tokens.py
@@ -0,0 +1,39 @@
+import importlib
+import json
+error_checker = importlib.import_module("fedcm.support.request-params-check")
+
+# Pre-computed token responses
+TOKEN_RESPONSES = {
+  'string': '{"token": "simple_string_token"}',
+  'positive-number': '{"token": 12345}',
+  'negative-number': '{"token": -42}',
+  'boolean-true': '{"token": true}',
+  'boolean-false': '{"token": false}',
+  'null': '{"token": null}',
+  'zero': '{"token": 0}',
+  'float': '{"token": 3.14159}',
+  'array': '{"token": ["token1", "token2", "token3"]}',
+  'empty-array': '{"token": []}',
+  'mixed-array': '{"token": ["string", 123, true, null, {"key": "value"}]}',
+  'object': '{"token": {"access_token": "abc123", "token_type": "Bearer", "expires_in": 3600}}',
+  'empty-object': '{"token": {}}',
+  'nested-object': '{"token": {"user": {"id": "123", "profile": {"name": "Test User", "preferences": {"theme": "dark"}}}}}',
+}
+
+def main(request, response):
+  request_error = error_checker.tokenCheck(request)
+  if request_error:
+    return request_error
+
+  response.headers.set(b"Content-Type", b"application/json")
+  response.headers.set(b"Access-Control-Allow-Origin", request.headers.get(b"Origin"))
+  response.headers.set(b"Access-Control-Allow-Credentials", "true")
+
+  token_type = 'string'  # default
+
+  param_string = request.POST.get(b"params").decode("utf-8")
+  param_obj = json.loads(param_string)
+  if 'token_type' in param_obj:
+    token_type = param_obj['token_type']
+
+  return TOKEN_RESPONSES.get(token_type, TOKEN_RESPONSES['string'])
\ No newline at end of file
diff --git a/tests/wpt/tests/fedcm/support/manifest_flexible_tokens.json b/tests/wpt/tests/fedcm/support/manifest_flexible_tokens.json
new file mode 100644
index 00000000000..917ddf6365c
--- /dev/null
+++ b/tests/wpt/tests/fedcm/support/manifest_flexible_tokens.json
@@ -0,0 +1,7 @@
+{
+  "accounts_endpoint": "accounts_no_approved_clients.py",
+  "client_metadata_endpoint": "client_metadata.py",
+  "id_assertion_endpoint": "flexible_tokens.py",
+  "disconnect_endpoint": "disconnect.py",
+  "login_url": "login.html"
+}
\ No newline at end of file
diff --git a/tests/wpt/tests/fenced-frame/disallowed-navigation-to-blob.https.html b/tests/wpt/tests/fenced-frame/disallowed-navigation-to-blob.https.html
index 37226094107..9b299cd5e1e 100644
--- a/tests/wpt/tests/fenced-frame/disallowed-navigation-to-blob.https.html
+++ b/tests/wpt/tests/fenced-frame/disallowed-navigation-to-blob.https.html
@@ -5,7 +5,7 @@
 <script src="/resources/testharnessreport.js"></script>
 <script src="/common/utils.js"></script>
 <script src="resources/utils.js"></script>
-<script src="/fetch/private-network-access/resources/support.sub.js"></script>
+<script src="/fetch/local-network-access/resources/support.sub.js"></script>
 
 <body>
 <script>
diff --git a/tests/wpt/tests/fenced-frame/disallowed-navigation-to-data.https.html b/tests/wpt/tests/fenced-frame/disallowed-navigation-to-data.https.html
index 99c2e05bee3..7ab8edc7e11 100644
--- a/tests/wpt/tests/fenced-frame/disallowed-navigation-to-data.https.html
+++ b/tests/wpt/tests/fenced-frame/disallowed-navigation-to-data.https.html
@@ -5,7 +5,7 @@
 <script src="/resources/testharnessreport.js"></script>
 <script src="/common/utils.js"></script>
 <script src="resources/utils.js"></script>
-<script src="/fetch/private-network-access/resources/support.sub.js"></script>
+<script src="/fetch/local-network-access/resources/support.sub.js"></script>
 
 <body>
 <script>
diff --git a/tests/wpt/tests/fenced-frame/disallowed-navigations-dangling-markup-urn.https.html b/tests/wpt/tests/fenced-frame/disallowed-navigations-dangling-markup-urn.https.html
index a36f98f9755..8302edc6e9f 100644
--- a/tests/wpt/tests/fenced-frame/disallowed-navigations-dangling-markup-urn.https.html
+++ b/tests/wpt/tests/fenced-frame/disallowed-navigations-dangling-markup-urn.https.html
@@ -7,7 +7,7 @@
 <script src="/common/get-host-info.sub.js"></script>
 <script src="/common/utils.js"></script>
 <script src="resources/utils.js"></script>
-<script src="/fetch/private-network-access/resources/support.sub.js"></script>
+<script src="/fetch/local-network-access/resources/support.sub.js"></script>
 <script src="resources/dangling-markup-helper.js"></script>
 
 <body>
diff --git a/tests/wpt/tests/fenced-frame/disallowed-navigations.https.html b/tests/wpt/tests/fenced-frame/disallowed-navigations.https.html
index 54fa95f16f4..5cde50d4201 100644
--- a/tests/wpt/tests/fenced-frame/disallowed-navigations.https.html
+++ b/tests/wpt/tests/fenced-frame/disallowed-navigations.https.html
@@ -7,7 +7,7 @@
 <script src="/common/get-host-info.sub.js"></script>
 <script src="/common/utils.js"></script>
 <script src="resources/utils.js"></script>
-<script src="/fetch/private-network-access/resources/support.sub.js"></script>
+<script src="/fetch/local-network-access/resources/support.sub.js"></script>
 
 <body>
 
diff --git a/tests/wpt/tests/fetch/fetch-later/basic.tentative.https.window.js b/tests/wpt/tests/fetch/fetch-later/basic.tentative.https.window.js
index 37f72ab89e5..f3ed42fe35a 100644
--- a/tests/wpt/tests/fetch/fetch-later/basic.tentative.https.window.js
+++ b/tests/wpt/tests/fetch/fetch-later/basic.tentative.https.window.js
@@ -5,13 +5,91 @@ test(() => {
 }, `fetchLater() cannot be called without request.`);
 
 test(() => {
-  assert_throws_js(TypeError, () => fetchLater('http://www.google.com'));
+  const result = fetchLater('/');
+  assert_false(result.activated, `result.activated should be false for '/'`);
+}, `fetchLater() with same-origin (https) URL does not throw.`);
+
+test(() => {
+  const url = 'http://localhost';
+  const result = fetchLater(url);
+  assert_false(result.activated, `result.activated should be false for ${url}`);
+}, `fetchLater() with http://localhost URL does not throw.`);
+
+test(() => {
+  const url = 'https://localhost';
+  const result = fetchLater(url);
+  assert_false(result.activated, `result.activated should be false for ${url}`);
+}, `fetchLater() with https://localhost URL does not throw.`);
+
+test(() => {
+  const url = 'http://127.0.0.1';
+  const result = fetchLater(url);
+  assert_false(result.activated, `result.activated should be false for ${url}`);
+}, `fetchLater() with http://127.0.0.1 URL does not throw.`);
+
+test(() => {
+  const url = 'https://127.0.0.1';
+  const result = fetchLater(url);
+  assert_false(result.activated, `result.activated should be false for ${url}`);
+}, `fetchLater() with https://127.0.0.1 URL does not throw.`);
+
+test(() => {
+  const url = 'http://[::1]';
+  const result = fetchLater(url);
+  assert_false(result.activated, `result.activated should be false for ${url}`);
+}, `fetchLater() with http://[::1] URL does not throw.`);
+
+test(() => {
+  const url = 'https://[::1]';
+  const result = fetchLater(url);
+  assert_false(result.activated, `result.activated should be false for ${url}`);
+}, `fetchLater() with https://[::1] URL does not throw.`);
+
+test(() => {
+  const url = 'https://example.com';
+  const result = fetchLater(url);
+  assert_false(result.activated, `result.activated should be false for ${url}`);
+}, `fetchLater() with https://example.com URL does not throw.`);
+
+test(() => {
+  const httpUrl = 'http://example.com';
+  assert_throws_dom(
+      'SecurityError', () => fetchLater(httpUrl),
+      `should throw SecurityError for insecure http url ${httpUrl}`);
+}, `fetchLater() throws SecurityError on non-trustworthy http URL.`);
+
+test(() => {
   assert_throws_js(TypeError, () => fetchLater('file://tmp'));
+}, `fetchLater() throws TypeError on file:// scheme.`);
+
+test(() => {
+  assert_throws_js(TypeError, () => fetchLater('ftp://example.com'));
+}, `fetchLater() throws TypeError on ftp:// scheme.`);
+
+test(() => {
   assert_throws_js(TypeError, () => fetchLater('ssh://example.com'));
+}, `fetchLater() throws TypeError on ssh:// scheme.`);
+
+test(() => {
   assert_throws_js(TypeError, () => fetchLater('wss://example.com'));
+}, `fetchLater() throws TypeError on wss:// scheme.`);
+
+test(() => {
   assert_throws_js(TypeError, () => fetchLater('about:blank'));
+}, `fetchLater() throws TypeError on about: scheme.`);
+
+test(() => {
   assert_throws_js(TypeError, () => fetchLater(`javascript:alert('');`));
-}, `fetchLater() throws TypeError on non-HTTPS URL.`);
+}, `fetchLater() throws TypeError on javascript: scheme.`);
+
+test(() => {
+  assert_throws_js(TypeError, () => fetchLater('data:text/plain,Hello'));
+}, `fetchLater() throws TypeError on data: scheme.`);
+
+test(() => {
+  assert_throws_js(
+      TypeError, () => fetchLater('blob:https://example.com/some-uuid'));
+}, `fetchLater() throws TypeError on blob: scheme.`);
 
 test(() => {
   assert_throws_js(
diff --git a/tests/wpt/tests/fetch/private-network-access/META.yml b/tests/wpt/tests/fetch/private-network-access/META.yml
deleted file mode 100644
index 944ce6f14a1..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/META.yml
+++ /dev/null
@@ -1,7 +0,0 @@
-spec: https://wicg.github.io/private-network-access/
-suggested_reviewers:
-  - letitz
-  - lyf
-  - hemeryar
-  - camillelamy
-  - mikewest
diff --git a/tests/wpt/tests/fetch/private-network-access/README.md b/tests/wpt/tests/fetch/private-network-access/README.md
deleted file mode 100644
index cbb5b85b74d..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/README.md
+++ /dev/null
@@ -1,13 +0,0 @@
-# Private Network Access tests
-
-This directory contains tests for Private Network Access' integration with
-the Fetch specification.
-
-See also:
-
-* [The specification](https://wicg.github.io/private-network-access/)
-* [The repository](https://github.com/WICG/private-network-access/)
-* [Open issues](https://github.com/WICG/private-network-access/issues/)
-
-Private Network Access is deprecated and will eventually be replaced by [Local
-Network Access](https://github.com/explainers-by-googlers/local-network-access).
diff --git a/tests/wpt/tests/fetch/private-network-access/anchor.tentative.https.window.js b/tests/wpt/tests/fetch/private-network-access/anchor.tentative.https.window.js
deleted file mode 100644
index 4e860ad381d..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/anchor.tentative.https.window.js
+++ /dev/null
@@ -1,191 +0,0 @@
-// META: script=/common/subset-tests-by-key.js
-// META: script=/common/dispatcher/dispatcher.js
-// META: script=/common/utils.js
-// META: script=resources/support.sub.js
-// META: timeout=long
-// META: variant=?include=from-local
-// META: variant=?include=from-private
-// META: variant=?include=from-public
-// META: variant=?include=from-treat-as-public
-//
-// These tests verify that secure contexts can navigate to less-public address
-// spaces via an anchor link iff the target server responds affirmatively to
-// preflight requests.
-
-setup(() => {
-  assert_true(window.isSecureContext);
-});
-
-// Source: secure local context.
-//
-// All fetches unaffected by Private Network Access.
-
-subsetTestByKey("from-local", promise_test_parallel, t => anchorTest(t, {
-  source: { server: Server.HTTPS_LOCAL },
-  target: { server: Server.HTTPS_LOCAL },
-  expected: NavigationTestResult.SUCCESS,
-}), "local to local: no preflight required.");
-
-subsetTestByKey("from-local", promise_test_parallel, t => anchorTest(t, {
-  source: { server: Server.HTTPS_LOCAL },
-  target: { server: Server.HTTPS_PRIVATE },
-  expected: NavigationTestResult.SUCCESS,
-}), "local to private: no preflight required.");
-
-subsetTestByKey("from-local", promise_test_parallel, t => anchorTest(t, {
-  source: { server: Server.HTTPS_LOCAL },
-  target: { server: Server.HTTPS_PUBLIC },
-  expected: NavigationTestResult.SUCCESS,
-}), "local to public: no preflight required.");
-
-// Generates tests of preflight behavior for a single (source, target) pair.
-//
-// Scenarios:
-//
-//   - preflight response has non-2xx HTTP code
-//   - preflight response is missing CORS headers
-//   - preflight response is missing the PNA-specific `Access-Control` header
-//   - success
-//
-function makePreflightTests({
-  key,
-  sourceName,
-  sourceServer,
-  sourceTreatAsPublic,
-  targetName,
-  targetServer,
-}) {
-  const prefix =
-      `${sourceName} to ${targetName}: `;
-
-  const source = {
-    server: sourceServer,
-    treatAsPublic: sourceTreatAsPublic,
-  };
-
-  promise_test_parallel(t => anchorTest(t, {
-    source,
-    target: {
-      server: targetServer,
-      behavior: { preflight: PreflightBehavior.failure() },
-    },
-    expected: NavigationTestResult.FAILURE,
-  }), prefix + "failed preflight.");
-
-  promise_test_parallel(t => anchorTest(t, {
-    source,
-    target: {
-      server: targetServer,
-      behavior: { preflight: PreflightBehavior.noCorsHeader(token()) },
-    },
-    expected: NavigationTestResult.FAILURE,
-  }), prefix + "missing CORS headers.");
-
-  promise_test_parallel(t => anchorTest(t, {
-    source,
-    target: {
-      server: targetServer,
-      behavior: { preflight: PreflightBehavior.noPnaHeader(token()) },
-    },
-    expected: NavigationTestResult.FAILURE,
-  }), prefix + "missing PNA header.");
-
-  promise_test_parallel(t => anchorTest(t, {
-    source,
-    target: {
-      server: targetServer,
-      behavior: { preflight: PreflightBehavior.navigation(token()) },
-    },
-    expected: NavigationTestResult.SUCCESS,
-  }), prefix + "success.");
-}
-
-// Source: private secure context.
-//
-// Fetches to the local address space require a successful preflight response
-// carrying a PNA-specific header.
-
-subsetTestByKey('from-private', makePreflightTests, {
-  sourceServer: Server.HTTPS_PRIVATE,
-  sourceName: 'private',
-  targetServer: Server.HTTPS_LOCAL,
-  targetName: 'local',
-});
-
-subsetTestByKey("from-private", promise_test_parallel, t => anchorTest(t, {
-  source: { server: Server.HTTPS_PRIVATE },
-  target: { server: Server.HTTPS_PRIVATE },
-  expected: NavigationTestResult.SUCCESS,
-}), "private to private: no preflight required.");
-
-subsetTestByKey("from-private", promise_test_parallel, t => anchorTest(t, {
-  source: { server: Server.HTTPS_PRIVATE },
-  target: { server: Server.HTTPS_PUBLIC },
-  expected: NavigationTestResult.SUCCESS,
-}), "private to public: no preflight required.");
-
-// Source: public secure context.
-//
-// Fetches to the local and private address spaces require a successful
-// preflight response carrying a PNA-specific header.
-
-subsetTestByKey('from-public', makePreflightTests, {
-  sourceServer: Server.HTTPS_PUBLIC,
-  sourceName: "public",
-  targetServer: Server.HTTPS_LOCAL,
-  targetName: "local",
-});
-
-subsetTestByKey('from-public', makePreflightTests, {
-  sourceServer: Server.HTTPS_PUBLIC,
-  sourceName: "public",
-  targetServer: Server.HTTPS_PRIVATE,
-  targetName: "private",
-});
-
-subsetTestByKey("from-public", promise_test_parallel, t => anchorTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: { server: Server.HTTPS_PUBLIC },
-  expected: NavigationTestResult.SUCCESS,
-}), "public to public: no preflight required.");
-
-// The following tests verify that `CSP: treat-as-public-address` makes
-// documents behave as if they had been served from a public IP address.
-
-subsetTestByKey('from-treat-as-public', makePreflightTests, {
-  sourceServer: Server.HTTPS_LOCAL,
-  sourceTreatAsPublic: true,
-  sourceName: "treat-as-public-address",
-  targetServer: Server.OTHER_HTTPS_LOCAL,
-  targetName: "local",
-});
-
-subsetTestByKey("from-treat-as-public", promise_test_parallel,
-    t => anchorTest(t, {
-      source: {
-        server: Server.HTTPS_LOCAL,
-        treatAsPublic: true,
-      },
-      target: {server: Server.HTTPS_LOCAL},
-      expected: NavigationTestResult.SUCCESS,
-    }),
-    'treat-as-public-address to local (same-origin): no preflight required.');
-
-subsetTestByKey('from-treat-as-public', makePreflightTests, {
-  sourceServer: Server.HTTPS_LOCAL,
-  sourceTreatAsPublic: true,
-  sourceName: 'treat-as-public-address',
-  targetServer: Server.HTTPS_PRIVATE,
-  targetName: 'private',
-});
-
-subsetTestByKey("from-treat-as-public", promise_test_parallel,
-    t => anchorTest(t, {
-      source: {
-        server: Server.HTTPS_LOCAL,
-        treatAsPublic: true,
-      },
-      target: {server: Server.HTTPS_PUBLIC},
-      expected: NavigationTestResult.SUCCESS,
-    }),
-    'treat-as-public-address to public: no preflight required.');
diff --git a/tests/wpt/tests/fetch/private-network-access/anchor.tentative.window.js b/tests/wpt/tests/fetch/private-network-access/anchor.tentative.window.js
deleted file mode 100644
index cb538658081..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/anchor.tentative.window.js
+++ /dev/null
@@ -1,95 +0,0 @@
-// META: script=/common/dispatcher/dispatcher.js
-// META: script=/common/utils.js
-// META: script=resources/support.sub.js
-// META: timeout=long
-//
-// Spec: https://wicg.github.io/private-network-access/
-//
-// These tests verify that non-secure contexts cannot open a new window via an
-// anchor link to less-public address spaces.
-
-setup(() => {
-  // Making sure we are in a non secure context, as expected.
-  assert_false(window.isSecureContext);
-});
-
-promise_test_parallel(t => anchorTest(t, {
-  source: { server: Server.HTTP_LOCAL },
-  target: { server: Server.HTTP_LOCAL },
-  expected: NavigationTestResult.SUCCESS,
-}), "local to local: no preflight required.");
-
-promise_test_parallel(t => anchorTest(t, {
-  source: { server: Server.HTTP_LOCAL },
-  target: { server: Server.HTTP_PRIVATE },
-  expected: NavigationTestResult.SUCCESS,
-}), "local to private: no preflight required.");
-
-promise_test_parallel(t => anchorTest(t, {
-  source: { server: Server.HTTP_LOCAL },
-  target: { server: Server.HTTP_PUBLIC },
-  expected: NavigationTestResult.SUCCESS,
-}), "local to public: no preflight required.");
-
-promise_test_parallel(t => anchorTest(t, {
-  source: { server: Server.HTTP_PRIVATE },
-  target: { server: Server.HTTP_LOCAL },
-  expected: NavigationTestResult.FAILURE,
-}), "private to local: failure.");
-
-promise_test_parallel(t => anchorTest(t, {
-  source: { server: Server.HTTP_PRIVATE },
-  target: { server: Server.HTTP_PRIVATE },
-  expected: NavigationTestResult.SUCCESS,
-}), "private to private: no preflight required.");
-
-promise_test_parallel(t => anchorTest(t, {
-  source: { server: Server.HTTP_PRIVATE },
-  target: { server: Server.HTTP_PUBLIC },
-  expected: NavigationTestResult.SUCCESS,
-}), "private to public: no preflight required.");
-
-promise_test_parallel(t => anchorTest(t, {
-  source: { server: Server.HTTP_PUBLIC },
-  target: { server: Server.HTTP_LOCAL },
-  expected: NavigationTestResult.FAILURE,
-}), "public to local: failure.");
-
-promise_test_parallel(t => anchorTest(t, {
-  source: { server: Server.HTTP_PUBLIC },
-  target: { server: Server.HTTP_PRIVATE },
-  expected: NavigationTestResult.FAILURE,
-}), "public to private: failure.");
-
-promise_test_parallel(t => anchorTest(t, {
-  source: { server: Server.HTTP_PUBLIC },
-  target: { server: Server.HTTP_PUBLIC },
-  expected: NavigationTestResult.SUCCESS,
-}), "public to public: no preflight required.");
-
-promise_test_parallel(t => anchorTest(t, {
-  source: {
-    server: Server.HTTP_LOCAL,
-    treatAsPublic: true,
-  },
-  target: { server: Server.HTTP_LOCAL },
-  expected: NavigationTestResult.FAILURE,
-}), "treat-as-public-address to local: failure.");
-
-promise_test_parallel(t => anchorTest(t, {
-  source: {
-    server: Server.HTTP_LOCAL,
-    treatAsPublic: true,
-  },
-  target: { server: Server.HTTP_PRIVATE },
-  expected: NavigationTestResult.FAILURE,
-}), "treat-as-public-address to private: failure.");
-
-promise_test_parallel(t => anchorTest(t, {
-  source: {
-    server: Server.HTTP_LOCAL,
-    treatAsPublic: true,
-  },
-  target: { server: Server.HTTP_PUBLIC },
-  expected: NavigationTestResult.SUCCESS,
-}), "treat-as-public-address to public: no preflight required.");
diff --git a/tests/wpt/tests/fetch/private-network-access/fetch-from-treat-as-public.tentative.https.window.js b/tests/wpt/tests/fetch/private-network-access/fetch-from-treat-as-public.tentative.https.window.js
deleted file mode 100644
index 084e03282f4..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/fetch-from-treat-as-public.tentative.https.window.js
+++ /dev/null
@@ -1,80 +0,0 @@
-// META: script=/common/utils.js
-// META: script=resources/support.sub.js
-//
-// Spec: https://wicg.github.io/private-network-access/#integration-fetch
-//
-// These tests verify that documents fetched from the `local` or `private`
-// address space yet carrying the `treat-as-public-address` CSP directive are
-// treated as if they had been fetched from the `public` address space.
-
-promise_test(t => fetchTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.OTHER_HTTPS_LOCAL,
-    preflight: PreflightBehavior.noPnaHeader(token()),
-  },
-  expected: FetchTestResult.FAILURE,
-}), "treat-as-public-address to local: failed preflight.");
-
-promise_test(t => fetchTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.OTHER_HTTPS_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: FetchTestResult.SUCCESS,
-}), "treat-as-public-address to local: success.");
-
-promise_test(t => fetchTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: { server: Server.HTTPS_LOCAL },
-  expected: FetchTestResult.SUCCESS,
-}), "treat-as-public-address to local (same-origin): no preflight required.");
-
-promise_test(t => fetchTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: { server: Server.HTTPS_PRIVATE },
-  expected: FetchTestResult.FAILURE,
-}), "treat-as-public-address to private: failed preflight.");
-
-promise_test(t => fetchTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: {
-      preflight: PreflightBehavior.optionalSuccess(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: FetchTestResult.SUCCESS,
-}), "treat-as-public-address to private: success.");
-
-promise_test(t => fetchTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTPS_PUBLIC,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: FetchTestResult.SUCCESS,
-}), "treat-as-public-address to public: no preflight required.");
diff --git a/tests/wpt/tests/fetch/private-network-access/fetch.tentative.https.window.js b/tests/wpt/tests/fetch/private-network-access/fetch.tentative.https.window.js
deleted file mode 100644
index 606443dc14d..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/fetch.tentative.https.window.js
+++ /dev/null
@@ -1,271 +0,0 @@
-// META: script=/common/subset-tests-by-key.js
-// META: script=/common/utils.js
-// META: script=resources/support.sub.js
-// META: variant=?include=baseline
-// META: variant=?include=from-local
-// META: variant=?include=from-private
-// META: variant=?include=from-public
-//
-// Spec: https://wicg.github.io/private-network-access/#integration-fetch
-//
-// These tests verify that secure contexts can fetch subresources from all
-// address spaces, provided that the target server, if more private than the
-// initiator, respond affirmatively to preflight requests.
-//
-// This file covers only those tests that must execute in a secure context.
-// Other tests are defined in: fetch.window.js
-
-setup(() => {
-  // Making sure we are in a secure context, as expected.
-  assert_true(window.isSecureContext);
-});
-
-// Source: secure local context.
-//
-// All fetches unaffected by Private Network Access.
-
-subsetTestByKey("from-local", promise_test, t => fetchTest(t, {
-  source: { server: Server.HTTPS_LOCAL },
-  target: { server: Server.HTTPS_LOCAL },
-  expected: FetchTestResult.SUCCESS,
-}), "local to local: no preflight required.");
-
-subsetTestByKey("from-local", promise_test, t => fetchTest(t, {
-  source: { server: Server.HTTPS_LOCAL },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: FetchTestResult.SUCCESS,
-}), "local to private: no preflight required.");
-
-
-subsetTestByKey("from-local", promise_test, t => fetchTest(t, {
-  source: { server: Server.HTTPS_LOCAL },
-  target: {
-    server: Server.HTTPS_PUBLIC,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: FetchTestResult.SUCCESS,
-}), "local to public: no preflight required.");
-
-// Strictly speaking, the following two tests do not exercise PNA-specific
-// logic, but they serve as a baseline for comparison, ensuring that non-PNA
-// preflight requests are sent and handled as expected.
-
-subsetTestByKey("baseline", promise_test, t => fetchTest(t, {
-  source: { server: Server.HTTPS_LOCAL },
-  target: {
-    server: Server.HTTPS_PUBLIC,
-    behavior: {
-      preflight: PreflightBehavior.failure(),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  fetchOptions: { method: "PUT" },
-  expected: FetchTestResult.FAILURE,
-}), "local to public: PUT preflight failure.");
-
-subsetTestByKey("baseline", promise_test, t => fetchTest(t, {
-  source: { server: Server.HTTPS_LOCAL },
-  target: {
-    server: Server.HTTPS_PUBLIC,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    }
-  },
-  fetchOptions: { method: "PUT" },
-  expected: FetchTestResult.SUCCESS,
-}), "local to public: PUT preflight success.");
-
-// Generates tests of preflight behavior for a single (source, target) pair.
-//
-// Scenarios:
-//
-//  - cors mode:
-//    - preflight response has non-2xx HTTP code
-//    - preflight response is missing CORS headers
-//    - preflight response is missing the PNA-specific `Access-Control` header
-//    - final response is missing CORS headers
-//    - success
-//    - success with PUT method (non-"simple" request)
-//  - no-cors mode:
-//    - preflight response has non-2xx HTTP code
-//    - preflight response is missing CORS headers
-//    - preflight response is missing the PNA-specific `Access-Control` header
-//    - success
-//
-function makePreflightTests({
-  subsetKey,
-  source,
-  sourceDescription,
-  targetServer,
-  targetDescription,
-}) {
-  const prefix =
-      `${sourceDescription} to ${targetDescription}: `;
-
-  subsetTestByKey(subsetKey, promise_test, t => fetchTest(t, {
-    source,
-    target: {
-      server: targetServer,
-      behavior: {
-        preflight: PreflightBehavior.failure(),
-        response: ResponseBehavior.allowCrossOrigin(),
-      },
-    },
-    expected: FetchTestResult.FAILURE,
-  }), prefix + "failed preflight.");
-
-  subsetTestByKey(subsetKey, promise_test, t => fetchTest(t, {
-    source,
-    target: {
-      server: targetServer,
-      behavior: {
-        preflight: PreflightBehavior.noCorsHeader(token()),
-        response: ResponseBehavior.allowCrossOrigin(),
-      },
-    },
-    expected: FetchTestResult.FAILURE,
-  }), prefix + "missing CORS headers on preflight response.");
-
-  subsetTestByKey(subsetKey, promise_test, t => fetchTest(t, {
-    source,
-    target: {
-      server: targetServer,
-      behavior: {
-        preflight: PreflightBehavior.noPnaHeader(token()),
-        response: ResponseBehavior.allowCrossOrigin(),
-      },
-    },
-    expected: FetchTestResult.FAILURE,
-  }), prefix + "missing PNA header on preflight response.");
-
-  subsetTestByKey(subsetKey, promise_test, t => fetchTest(t, {
-    source,
-    target: {
-      server: targetServer,
-      behavior: { preflight: PreflightBehavior.success(token()) },
-    },
-    expected: FetchTestResult.FAILURE,
-  }), prefix + "missing CORS headers on final response.");
-
-  subsetTestByKey(subsetKey, promise_test, t => fetchTest(t, {
-    source,
-    target: {
-      server: targetServer,
-      behavior: {
-        preflight: PreflightBehavior.success(token()),
-        response: ResponseBehavior.allowCrossOrigin(),
-      },
-    },
-    expected: FetchTestResult.SUCCESS,
-  }), prefix + "success.");
-
-  subsetTestByKey(subsetKey, promise_test, t => fetchTest(t, {
-    source,
-    target: {
-      server: targetServer,
-      behavior: {
-        preflight: PreflightBehavior.success(token()),
-        response: ResponseBehavior.allowCrossOrigin(),
-      },
-    },
-    fetchOptions: { method: "PUT" },
-    expected: FetchTestResult.SUCCESS,
-  }), prefix + "PUT success.");
-
-  subsetTestByKey(subsetKey, promise_test, t => fetchTest(t, {
-    source,
-    target: { server: targetServer },
-    fetchOptions: { mode: "no-cors" },
-    expected: FetchTestResult.FAILURE,
-  }), prefix + "no-CORS mode failed preflight.");
-
-  subsetTestByKey(subsetKey, promise_test, t => fetchTest(t, {
-    source,
-    target: {
-      server: targetServer,
-      behavior: { preflight: PreflightBehavior.noCorsHeader(token()) },
-    },
-    fetchOptions: { mode: "no-cors" },
-    expected: FetchTestResult.FAILURE,
-  }), prefix + "no-CORS mode missing CORS headers on preflight response.");
-
-  subsetTestByKey(subsetKey, promise_test, t => fetchTest(t, {
-    source,
-    target: {
-      server: targetServer,
-      behavior: { preflight: PreflightBehavior.noPnaHeader(token()) },
-    },
-    fetchOptions: { mode: "no-cors" },
-    expected: FetchTestResult.FAILURE,
-  }), prefix + "no-CORS mode missing PNA header on preflight response.");
-
-  subsetTestByKey(subsetKey, promise_test, t => fetchTest(t, {
-    source,
-    target: {
-      server: targetServer,
-      behavior: { preflight: PreflightBehavior.success(token()) },
-    },
-    fetchOptions: { mode: "no-cors" },
-    expected: FetchTestResult.OPAQUE,
-  }), prefix + "no-CORS mode success.");
-}
-
-// Source: private secure context.
-//
-// Fetches to the local address space require a successful preflight response
-// carrying a PNA-specific header.
-
-makePreflightTests({
-  subsetKey: "from-private",
-  source: { server: Server.HTTPS_PRIVATE },
-  sourceDescription: "private",
-  targetServer: Server.HTTPS_LOCAL,
-  targetDescription: "local",
-});
-
-subsetTestByKey("from-private", promise_test, t => fetchTest(t, {
-  source: { server: Server.HTTPS_PRIVATE },
-  target: { server: Server.HTTPS_PRIVATE },
-  expected: FetchTestResult.SUCCESS,
-}), "private to private: no preflight required.");
-
-subsetTestByKey("from-private", promise_test, t => fetchTest(t, {
-  source: { server: Server.HTTPS_PRIVATE },
-  target: {
-    server: Server.HTTPS_PUBLIC,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: FetchTestResult.SUCCESS,
-}), "private to public: no preflight required.");
-
-// Source: public secure context.
-//
-// Fetches to the local and private address spaces require a successful
-// preflight response carrying a PNA-specific header.
-
-makePreflightTests({
-  subsetKey: "from-public",
-  source: { server: Server.HTTPS_PUBLIC },
-  sourceDescription: "public",
-  targetServer: Server.HTTPS_LOCAL,
-  targetDescription: "local",
-});
-
-makePreflightTests({
-  subsetKey: "from-public",
-  source: { server: Server.HTTPS_PUBLIC },
-  sourceDescription: "public",
-  targetServer: Server.HTTPS_PRIVATE,
-  targetDescription: "private",
-});
-
-subsetTestByKey("from-public", promise_test, t => fetchTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: { server: Server.HTTPS_PUBLIC },
-  expected: FetchTestResult.SUCCESS,
-}), "public to public: no preflight required.");
-
diff --git a/tests/wpt/tests/fetch/private-network-access/fetch.tentative.window.js b/tests/wpt/tests/fetch/private-network-access/fetch.tentative.window.js
deleted file mode 100644
index 8ee54c90562..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/fetch.tentative.window.js
+++ /dev/null
@@ -1,183 +0,0 @@
-// META: script=/common/utils.js
-// META: script=resources/support.sub.js
-//
-// Spec: https://wicg.github.io/private-network-access/#integration-fetch
-//
-// These tests verify that non-secure contexts cannot fetch subresources from
-// less-public address spaces, and can fetch them otherwise.
-//
-// This file covers only those tests that must execute in a non secure context.
-// Other tests are defined in: fetch.https.window.js
-
-setup(() => {
-  // Making sure we are in a non secure context, as expected.
-  assert_false(window.isSecureContext);
-});
-
-promise_test(t => fetchTest(t, {
-  source: { server: Server.HTTP_LOCAL },
-  target: { server: Server.HTTP_LOCAL },
-  expected: FetchTestResult.SUCCESS,
-}), "local to local: no preflight required.");
-
-promise_test(t => fetchTest(t, {
-  source: { server: Server.HTTP_LOCAL },
-  target: {
-    server: Server.HTTP_PRIVATE,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: FetchTestResult.SUCCESS,
-}), "local to private: no preflight required.");
-
-promise_test(t => fetchTest(t, {
-  source: { server: Server.HTTP_LOCAL },
-  target: {
-    server: Server.HTTP_PUBLIC,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: FetchTestResult.SUCCESS,
-}), "local to public: no preflight required.");
-
-promise_test(t => fetchTest(t, {
-  source: { server: Server.HTTP_PRIVATE },
-  target: {
-    server: Server.HTTP_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.optionalSuccess(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: FetchTestResult.FAILURE,
-}), "private to local: failure.");
-
-promise_test(t => fetchTest(t, {
-  source: { server: Server.HTTP_PRIVATE },
-  target: { server: Server.HTTP_PRIVATE },
-  expected: FetchTestResult.SUCCESS,
-}), "private to private: no preflight required.");
-
-promise_test(t => fetchTest(t, {
-  source: { server: Server.HTTP_PRIVATE },
-  target: {
-    server: Server.HTTP_PUBLIC,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: FetchTestResult.SUCCESS,
-}), "private to public: no preflight required.");
-
-promise_test(t => fetchTest(t, {
-  source: { server: Server.HTTP_PUBLIC },
-  target: {
-    server: Server.HTTP_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.optionalSuccess(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: FetchTestResult.FAILURE,
-}), "public to local: failure.");
-
-promise_test(t => fetchTest(t, {
-  source: { server: Server.HTTP_PUBLIC },
-  target: {
-    server: Server.HTTP_PRIVATE,
-    behavior: {
-      preflight: PreflightBehavior.optionalSuccess(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: FetchTestResult.FAILURE,
-}), "public to private: failure.");
-
-promise_test(t => fetchTest(t, {
-  source: { server: Server.HTTP_PUBLIC },
-  target: { server: Server.HTTP_PUBLIC },
-  expected: FetchTestResult.SUCCESS,
-}), "public to public: no preflight required.");
-
-// These tests verify that documents fetched from the `local` address space yet
-// carrying the `treat-as-public-address` CSP directive are treated as if they
-// had been fetched from the `public` address space.
-
-promise_test(t => fetchTest(t, {
-  source: {
-    server: Server.HTTP_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTP_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: FetchTestResult.FAILURE,
-}), "treat-as-public-address to local: failure.");
-
-promise_test(t => fetchTest(t, {
-  source: {
-    server: Server.HTTP_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTP_PRIVATE,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: FetchTestResult.FAILURE,
-}), "treat-as-public-address to private: failure.");
-
-promise_test(t => fetchTest(t, {
-  source: {
-    server: Server.HTTP_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTP_PUBLIC,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: FetchTestResult.SUCCESS,
-}), "treat-as-public-address to public: no preflight required.");
-
-// These tests verify that HTTPS iframes embedded in an HTTP top-level document
-// cannot fetch subresources from less-public address spaces. Indeed, even
-// though the iframes have HTTPS origins, they are non-secure contexts because
-// their parent is a non-secure context.
-
-promise_test(t => fetchTest(t, {
-  source: { server: Server.HTTPS_PRIVATE },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: FetchTestResult.FAILURE,
-}), "private https to local: failure.");
-
-promise_test(t => fetchTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: FetchTestResult.FAILURE,
-}), "public https to local: failure.");
-
-promise_test(t => fetchTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: FetchTestResult.FAILURE,
-}), "public https to private: failure.");
diff --git a/tests/wpt/tests/fetch/private-network-access/iframe.tentative.https.window.js b/tests/wpt/tests/fetch/private-network-access/iframe.tentative.https.window.js
deleted file mode 100644
index 1e00c0af41a..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/iframe.tentative.https.window.js
+++ /dev/null
@@ -1,267 +0,0 @@
-// META: script=/common/subset-tests-by-key.js
-// META: script=/common/dispatcher/dispatcher.js
-// META: script=/common/utils.js
-// META: script=resources/support.sub.js
-// META: timeout=long
-// META: variant=?include=from-local
-// META: variant=?include=from-private
-// META: variant=?include=from-public
-// META: variant=?include=from-treat-as-public
-// META: variant=?include=grandparent
-//
-// Spec: https://wicg.github.io/private-network-access/#integration-fetch
-//
-// These tests verify that secure contexts can navigate iframes to less-public
-// address spaces iff the target server responds affirmatively to preflight
-// requests.
-//
-// This file covers only those tests that must execute in a secure context.
-// Other tests are defined in: iframe.tentative.window.js
-
-setup(() => {
-  assert_true(window.isSecureContext);
-});
-
-// Source: secure local context.
-//
-// All fetches unaffected by Private Network Access.
-
-subsetTestByKey("from-local", promise_test_parallel, t => iframeTest(t, {
-  source: { server: Server.HTTPS_LOCAL },
-  target: { server: Server.HTTPS_LOCAL },
-  expected: FrameTestResult.SUCCESS,
-}), "local to local: no preflight required.");
-
-subsetTestByKey("from-local", promise_test_parallel, t => iframeTest(t, {
-  source: { server: Server.HTTPS_LOCAL },
-  target: { server: Server.HTTPS_PRIVATE },
-  expected: FrameTestResult.SUCCESS,
-}), "local to private: no preflight required.");
-
-subsetTestByKey("from-local", promise_test_parallel, t => iframeTest(t, {
-  source: { server: Server.HTTPS_LOCAL },
-  target: { server: Server.HTTPS_PUBLIC },
-  expected: FrameTestResult.SUCCESS,
-}), "local to public: no preflight required.");
-
-// Generates tests of preflight behavior for a single (source, target) pair.
-//
-// Scenarios:
-//
-// - parent navigates child:
-//   - preflight response has non-2xx HTTP code
-//   - preflight response is missing CORS headers
-//   - preflight response is missing the PNA-specific `Access-Control` header
-//   - success
-//
-function makePreflightTests({
-  key,
-  sourceName,
-  sourceServer,
-  sourceTreatAsPublic,
-  targetName,
-  targetServer,
-}) {
-  const prefix =
-      `${sourceName} to ${targetName}: `;
-
-  const source = {
-    server: sourceServer,
-    treatAsPublic: sourceTreatAsPublic,
-  };
-
-  promise_test_parallel(t => iframeTest(t, {
-    source,
-    target: {
-      server: targetServer,
-      behavior: { preflight: PreflightBehavior.failure() },
-    },
-    expected: FrameTestResult.FAILURE,
-  }), prefix + "failed preflight.");
-
-  promise_test_parallel(t => iframeTest(t, {
-    source,
-    target: {
-      server: targetServer,
-      behavior: { preflight: PreflightBehavior.noCorsHeader(token()) },
-    },
-    expected: FrameTestResult.FAILURE,
-  }), prefix + "missing CORS headers.");
-
-  promise_test_parallel(t => iframeTest(t, {
-    source,
-    target: {
-      server: targetServer,
-      behavior: { preflight: PreflightBehavior.noPnaHeader(token()) },
-    },
-    expected: FrameTestResult.FAILURE,
-  }), prefix + "missing PNA header.");
-
-  promise_test_parallel(t => iframeTest(t, {
-    source,
-    target: {
-      server: targetServer,
-      behavior: { preflight: PreflightBehavior.navigation(token()) },
-    },
-    expected: FrameTestResult.SUCCESS,
-  }), prefix + "success.");
-}
-
-// Source: private secure context.
-//
-// Fetches to the local address space require a successful preflight response
-// carrying a PNA-specific header.
-
-subsetTestByKey('from-private', makePreflightTests, {
-  sourceServer: Server.HTTPS_PRIVATE,
-  sourceName: 'private',
-  targetServer: Server.HTTPS_LOCAL,
-  targetName: 'local',
-});
-
-subsetTestByKey("from-private", promise_test_parallel, t => iframeTest(t, {
-  source: { server: Server.HTTPS_PRIVATE },
-  target: { server: Server.HTTPS_PRIVATE },
-  expected: FrameTestResult.SUCCESS,
-}), "private to private: no preflight required.");
-
-subsetTestByKey("from-private", promise_test_parallel, t => iframeTest(t, {
-  source: { server: Server.HTTPS_PRIVATE },
-  target: { server: Server.HTTPS_PUBLIC },
-  expected: FrameTestResult.SUCCESS,
-}), "private to public: no preflight required.");
-
-// Source: public secure context.
-//
-// Fetches to the local and private address spaces require a successful
-// preflight response carrying a PNA-specific header.
-
-subsetTestByKey('from-public', makePreflightTests, {
-  sourceServer: Server.HTTPS_PUBLIC,
-  sourceName: "public",
-  targetServer: Server.HTTPS_LOCAL,
-  targetName: "local",
-});
-
-subsetTestByKey('from-public', makePreflightTests, {
-  sourceServer: Server.HTTPS_PUBLIC,
-  sourceName: "public",
-  targetServer: Server.HTTPS_PRIVATE,
-  targetName: "private",
-});
-
-subsetTestByKey("from-public", promise_test_parallel, t => iframeTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: { server: Server.HTTPS_PUBLIC },
-  expected: FrameTestResult.SUCCESS,
-}), "public to public: no preflight required.");
-
-// The following tests verify that `CSP: treat-as-public-address` makes
-// documents behave as if they had been served from a public IP address.
-
-subsetTestByKey('from-treat-as-public', makePreflightTests, {
-  sourceServer: Server.HTTPS_LOCAL,
-  sourceTreatAsPublic: true,
-  sourceName: "treat-as-public-address",
-  targetServer: Server.OTHER_HTTPS_LOCAL,
-  targetName: "local",
-});
-
-subsetTestByKey(
-  'from-treat-as-public', promise_test_parallel,
-  t => iframeTest(t, {
-    source: {
-      server: Server.HTTPS_LOCAL,
-      treatAsPublic: true,
-    },
-    target: {server: Server.HTTPS_LOCAL},
-    expected: FrameTestResult.SUCCESS,
-  }),
-  'treat-as-public-address to local (same-origin): no preflight required.'
-);
-
-subsetTestByKey('from-treat-as-public', makePreflightTests, {
-  sourceServer: Server.HTTPS_LOCAL,
-  sourceTreatAsPublic: true,
-  sourceName: "treat-as-public-address",
-  targetServer: Server.HTTPS_PRIVATE,
-  targetName: "private",
-});
-
-subsetTestByKey(
-  'from-treat-as-public', promise_test_parallel,
-  t => iframeTest(t, {
-    source: {
-      server: Server.HTTPS_LOCAL,
-      treatAsPublic: true,
-    },
-    target: {server: Server.HTTPS_PUBLIC},
-    expected: FrameTestResult.SUCCESS,
-  }),
-  'treat-as-public-address to public: no preflight required.'
-);
-
-subsetTestByKey(
-  'from-treat-as-public', promise_test_parallel,
-  t => iframeTest(t, {
-    source: {
-      server: Server.HTTPS_LOCAL,
-      treatAsPublic: true,
-    },
-    target: {
-      server: Server.HTTPS_PUBLIC,
-      behavior: {preflight: PreflightBehavior.optionalSuccess(token())}
-    },
-    expected: FrameTestResult.SUCCESS,
-  }),
-  'treat-as-public-address to local: optional preflight'
-);
-
-// The following tests verify that when a grandparent frame navigates its
-// grandchild, the IP address space of the grandparent is compared against the
-// IP address space of the response. Indeed, the navigation initiator in this
-// case is the grandparent, not the parent.
-
-subsetTestByKey('grandparent', iframeGrandparentTest, {
-  name: 'local to local, grandparent navigates: no preflight required.',
-  grandparentServer: Server.HTTPS_LOCAL,
-  child: {server: Server.HTTPS_PUBLIC},
-  grandchild: {server: Server.OTHER_HTTPS_LOCAL},
-  expected: FrameTestResult.SUCCESS,
-});
-
-subsetTestByKey('grandparent', iframeGrandparentTest, {
-  name: "local to local (same-origin), grandparent navigates: no preflight required.",
-  grandparentServer: Server.HTTPS_LOCAL,
-  child: { server: Server.HTTPS_PUBLIC },
-  grandchild: { server: Server.HTTPS_LOCAL },
-  expected: FrameTestResult.SUCCESS,
-});
-
-subsetTestByKey('grandparent', iframeGrandparentTest, {
-  name: "public to local, grandparent navigates: failure.",
-  grandparentServer: Server.HTTPS_PUBLIC,
-  child: {
-    server: Server.HTTPS_LOCAL,
-    behavior: { preflight: PreflightBehavior.navigation(token()) },
-  },
-  grandchild: {
-    server: Server.HTTPS_LOCAL,
-    behavior: { preflight: PreflightBehavior.failure() },
-  },
-  expected: FrameTestResult.FAILURE,
-});
-
-subsetTestByKey('grandparent', iframeGrandparentTest, {
-  name: "public to local, grandparent navigates: success.",
-  grandparentServer: Server.HTTPS_PUBLIC,
-  child: {
-    server: Server.HTTPS_LOCAL,
-    behavior: { preflight: PreflightBehavior.navigation(token()) },
-  },
-  grandchild: {
-    server: Server.HTTPS_LOCAL,
-    behavior: { preflight: PreflightBehavior.navigation(token()) },
-  },
-  expected: FrameTestResult.SUCCESS,
-});
diff --git a/tests/wpt/tests/fetch/private-network-access/iframe.tentative.window.js b/tests/wpt/tests/fetch/private-network-access/iframe.tentative.window.js
deleted file mode 100644
index 441e0884d27..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/iframe.tentative.window.js
+++ /dev/null
@@ -1,110 +0,0 @@
-// META: script=/common/dispatcher/dispatcher.js
-// META: script=/common/utils.js
-// META: script=resources/support.sub.js
-//
-// Spec: https://wicg.github.io/private-network-access/#integration-fetch
-//
-// These tests verify that non-secure contexts cannot navigate iframes to
-// less-public address spaces, and can navigate them otherwise.
-//
-// This file covers only those tests that must execute in a non secure context.
-// Other tests are defined in: iframe.tentative.https.window.js
-
-setup(() => {
-  // Making sure we are in a non secure context, as expected.
-  assert_false(window.isSecureContext);
-});
-
-promise_test_parallel(t => iframeTest(t, {
-  source: { server: Server.HTTP_LOCAL },
-  target: { server: Server.HTTP_LOCAL },
-  expected: FrameTestResult.SUCCESS,
-}), "local to local: no preflight required.");
-
-promise_test_parallel(t => iframeTest(t, {
-  source: { server: Server.HTTP_LOCAL },
-  target: { server: Server.HTTP_PRIVATE },
-  expected: FrameTestResult.SUCCESS,
-}), "local to private: no preflight required.");
-
-promise_test_parallel(t => iframeTest(t, {
-  source: { server: Server.HTTP_LOCAL },
-  target: { server: Server.HTTP_PUBLIC },
-  expected: FrameTestResult.SUCCESS,
-}), "local to public: no preflight required.");
-
-promise_test_parallel(t => iframeTest(t, {
-  source: { server: Server.HTTP_PRIVATE },
-  target: { server: Server.HTTP_LOCAL },
-  expected: FrameTestResult.FAILURE,
-}), "private to local: failure.");
-
-promise_test_parallel(t => iframeTest(t, {
-  source: { server: Server.HTTP_PRIVATE },
-  target: { server: Server.HTTP_PRIVATE },
-  expected: FrameTestResult.SUCCESS,
-}), "private to private: no preflight required.");
-
-promise_test_parallel(t => iframeTest(t, {
-  source: { server: Server.HTTP_PRIVATE },
-  target: { server: Server.HTTP_PUBLIC },
-  expected: FrameTestResult.SUCCESS,
-}), "private to public: no preflight required.");
-
-promise_test_parallel(t => iframeTest(t, {
-  source: { server: Server.HTTP_PUBLIC },
-  target: { server: Server.HTTP_LOCAL },
-  expected: FrameTestResult.FAILURE,
-}), "public to local: failure.");
-
-promise_test_parallel(t => iframeTest(t, {
-  source: { server: Server.HTTP_PUBLIC },
-  target: { server: Server.HTTP_PRIVATE },
-  expected: FrameTestResult.FAILURE,
-}), "public to private: failure.");
-
-promise_test_parallel(t => iframeTest(t, {
-  source: { server: Server.HTTP_PUBLIC },
-  target: { server: Server.HTTP_PUBLIC },
-  expected: FrameTestResult.SUCCESS,
-}), "public to public: no preflight required.");
-
-promise_test_parallel(t => iframeTest(t, {
-  source: {
-    server: Server.HTTP_LOCAL,
-    treatAsPublic: true,
-  },
-  target: { server: Server.HTTP_LOCAL },
-  expected: FrameTestResult.FAILURE,
-}), "treat-as-public-address to local: failure.");
-
-promise_test_parallel(t => iframeTest(t, {
-  source: {
-    server: Server.HTTP_LOCAL,
-    treatAsPublic: true,
-  },
-  target: { server: Server.HTTP_PRIVATE },
-  expected: FrameTestResult.FAILURE,
-}), "treat-as-public-address to private: failure.");
-
-promise_test_parallel(t => iframeTest(t, {
-  source: {
-    server: Server.HTTP_LOCAL,
-    treatAsPublic: true,
-  },
-  target: { server: Server.HTTP_PUBLIC },
-  expected: FrameTestResult.SUCCESS,
-}), "treat-as-public-address to public: no preflight required.");
-
-// The following test verifies that when a grandparent frame navigates its
-// grandchild, the IP address space of the grandparent is compared against the
-// IP address space of the response. Indeed, the navigation initiator in this
-// case is the grandparent, not the parent.
-
-iframeGrandparentTest({
-  name: "local to local, grandparent navigates: success.",
-  grandparentServer: Server.HTTP_LOCAL,
-  child: { server: Server.HTTP_PUBLIC },
-  grandchild: { server: Server.HTTP_LOCAL },
-  expected: FrameTestResult.SUCCESS,
-});
diff --git a/tests/wpt/tests/fetch/private-network-access/nested-worker.tentative.https.window.js b/tests/wpt/tests/fetch/private-network-access/nested-worker.tentative.https.window.js
deleted file mode 100644
index 3eeb435badb..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/nested-worker.tentative.https.window.js
+++ /dev/null
@@ -1,36 +0,0 @@
-// META: script=/common/utils.js
-// META: script=resources/support.sub.js
-//
-// Spec: https://wicg.github.io/private-network-access/#integration-fetch
-//
-// These tests check that initial `Worker` script fetches from within worker
-// scopes are subject to Private Network Access checks, just like a worker
-// script fetches from within document scopes (for non-nested workers). The
-// latter are tested in: worker.https.window.js
-//
-// This file covers only those tests that must execute in a secure context.
-// Other tests are defined in: nested-worker.window.js
-
-promise_test(t => nestedWorkerScriptTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: { server: Server.HTTPS_LOCAL },
-  expected: WorkerScriptTestResult.FAILURE,
-}), "treat-as-public to local: failure.");
-
-promise_test(t => nestedWorkerScriptTest(t, {
-  source: {
-    server: Server.HTTPS_PRIVATE,
-    treatAsPublic: true,
-  },
-  target: { server: Server.HTTPS_PRIVATE },
-  expected: WorkerScriptTestResult.FAILURE,
-}), "treat-as-public to private: failure.");
-
-promise_test(t => nestedWorkerScriptTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: { server: Server.HTTPS_PUBLIC },
-  expected: WorkerScriptTestResult.SUCCESS,
-}), "public to public: success.");
diff --git a/tests/wpt/tests/fetch/private-network-access/nested-worker.tentative.window.js b/tests/wpt/tests/fetch/private-network-access/nested-worker.tentative.window.js
deleted file mode 100644
index 6d246e1c76d..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/nested-worker.tentative.window.js
+++ /dev/null
@@ -1,36 +0,0 @@
-// META: script=/common/utils.js
-// META: script=resources/support.sub.js
-//
-// Spec: https://wicg.github.io/private-network-access/#integration-fetch
-//
-// These tests check that initial `Worker` script fetches from within worker
-// scopes are subject to Private Network Access checks, just like a worker
-// script fetches from within document scopes (for non-nested workers). The
-// latter are tested in: worker.window.js
-//
-// This file covers only those tests that must execute in a non secure context.
-// Other tests are defined in: nested-worker.https.window.js
-
-promise_test(t => nestedWorkerScriptTest(t, {
-  source: {
-    server: Server.HTTP_LOCAL,
-    treatAsPublic: true,
-  },
-  target: { server: Server.HTTP_LOCAL },
-  expected: WorkerScriptTestResult.FAILURE,
-}), "treat-as-public to local: failure.");
-
-promise_test(t => nestedWorkerScriptTest(t, {
-  source: {
-    server: Server.HTTP_PRIVATE,
-    treatAsPublic: true,
-  },
-  target: { server: Server.HTTP_PRIVATE },
-  expected: WorkerScriptTestResult.FAILURE,
-}), "treat-as-public to private: failure.");
-
-promise_test(t => nestedWorkerScriptTest(t, {
-  source: { server: Server.HTTP_PUBLIC },
-  target: { server: Server.HTTP_PUBLIC },
-  expected: WorkerScriptTestResult.SUCCESS,
-}), "public to public: success.");
diff --git a/tests/wpt/tests/fetch/private-network-access/preflight-cache.https.tentative.window.js b/tests/wpt/tests/fetch/private-network-access/preflight-cache.https.tentative.window.js
deleted file mode 100644
index 87dbf501f62..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/preflight-cache.https.tentative.window.js
+++ /dev/null
@@ -1,88 +0,0 @@
-// META: script=/common/utils.js
-// META: script=resources/support.sub.js
-//
-// Spec: https://wicg.github.io/private-network-access/#cors-preflight
-//
-// These tests verify that PNA preflight responses are cached.
-//
-// TODO(https://crbug.com/1268312): We cannot currently test that cache
-// entries are keyed by target IP address space because that requires
-// loading the same URL from different IP address spaces, and the WPT
-// framework does not allow that.
-promise_test(async t => {
-  let uuid = token();
-  await fetchTest(t, {
-    source: { server: Server.HTTPS_PRIVATE },
-    target: {
-      server: Server.HTTPS_LOCAL,
-      behavior: {
-        preflight: PreflightBehavior.singlePreflight(uuid),
-        response: ResponseBehavior.allowCrossOrigin(),
-      },
-    },
-    expected: FetchTestResult.SUCCESS,
-  });
-  await fetchTest(t, {
-    source: { server: Server.HTTPS_PRIVATE },
-    target: {
-      server: Server.HTTPS_LOCAL,
-      behavior: {
-        preflight: PreflightBehavior.singlePreflight(uuid),
-        response: ResponseBehavior.allowCrossOrigin(),
-      },
-    },
-    expected: FetchTestResult.SUCCESS,
-  });
-}, "private to local: success.");
-
-promise_test(async t => {
-  let uuid = token();
-  await fetchTest(t, {
-    source: { server: Server.HTTPS_PUBLIC },
-    target: {
-      server: Server.HTTPS_LOCAL,
-      behavior: {
-        preflight: PreflightBehavior.singlePreflight(uuid),
-        response: ResponseBehavior.allowCrossOrigin(),
-      },
-    },
-    expected: FetchTestResult.SUCCESS,
-  });
-  await fetchTest(t, {
-    source: { server: Server.HTTPS_PUBLIC },
-    target: {
-      server: Server.HTTPS_LOCAL,
-      behavior: {
-        preflight: PreflightBehavior.singlePreflight(uuid),
-        response: ResponseBehavior.allowCrossOrigin(),
-      },
-    },
-    expected: FetchTestResult.SUCCESS,
-  });
-}, "public to local: success.");
-
-promise_test(async t => {
-  let uuid = token();
-  await fetchTest(t, {
-    source: { server: Server.HTTPS_PUBLIC },
-    target: {
-      server: Server.HTTPS_PRIVATE,
-      behavior: {
-        preflight: PreflightBehavior.singlePreflight(uuid),
-        response: ResponseBehavior.allowCrossOrigin(),
-      },
-    },
-    expected: FetchTestResult.SUCCESS,
-  });
-  await fetchTest(t, {
-    source: { server: Server.HTTPS_PUBLIC },
-    target: {
-      server: Server.HTTPS_PRIVATE,
-      behavior: {
-        preflight: PreflightBehavior.singlePreflight(uuid),
-        response: ResponseBehavior.allowCrossOrigin(),
-      },
-    },
-    expected: FetchTestResult.SUCCESS,
-  });
-}, "public to private: success.");
\ No newline at end of file
diff --git a/tests/wpt/tests/fetch/private-network-access/redirect.tentative.https.window.js b/tests/wpt/tests/fetch/private-network-access/redirect.tentative.https.window.js
deleted file mode 100644
index efbd8f31f93..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/redirect.tentative.https.window.js
+++ /dev/null
@@ -1,640 +0,0 @@
-// META: script=/common/utils.js
-// META: script=resources/support.sub.js
-//
-// Spec: https://wicg.github.io/private-network-access/#integration-fetch
-//
-// This test verifies that Private Network Access checks are applied to all
-// the endpoints in a redirect chain, relative to the same client context.
-
-// local -> private -> public
-//
-// Request 1 (local -> private): no preflight.
-// Request 2 (local -> public): no preflight.
-
-promise_test(t => fetchTest(t, {
-  source: { server: Server.HTTPS_LOCAL },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: {
-      response: ResponseBehavior.allowCrossOrigin(),
-      redirect: preflightUrl({
-        server: Server.HTTPS_PUBLIC,
-        behavior: { response: ResponseBehavior.allowCrossOrigin() },
-      }),
-    }
-  },
-  expected: FetchTestResult.SUCCESS,
-}), "local to private to public: success.");
-
-// local -> private -> local
-//
-// Request 1 (local -> private): no preflight.
-// Request 2 (local -> local): no preflight.
-//
-// This checks that the client for the second request is still the initial
-// context, not the redirector.
-
-promise_test(t => fetchTest(t, {
-  source: { server: Server.HTTPS_LOCAL },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: {
-      response: ResponseBehavior.allowCrossOrigin(),
-      redirect: preflightUrl({
-        server: Server.HTTPS_LOCAL,
-        behavior: { response: ResponseBehavior.allowCrossOrigin() },
-      }),
-    }
-  },
-  expected: FetchTestResult.SUCCESS,
-}), "local to private to local: success.");
-
-// private -> private -> local
-//
-// Request 1 (private -> private): no preflight.
-// Request 2 (private -> local): preflight required.
-//
-// This verifies that PNA checks are applied after redirects.
-
-promise_test(t => fetchTest(t, {
-  source: { server: Server.HTTPS_PRIVATE },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: {
-      redirect: preflightUrl({
-        server: Server.HTTPS_LOCAL,
-        behavior: { response: ResponseBehavior.allowCrossOrigin() },
-      }),
-    }
-  },
-  expected: FetchTestResult.FAILURE,
-}), "private to private to local: failed preflight.");
-
-promise_test(t => fetchTest(t, {
-  source: { server: Server.HTTPS_PRIVATE },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: {
-      redirect: preflightUrl({
-        server: Server.HTTPS_LOCAL,
-        behavior: {
-          preflight: PreflightBehavior.success(token()),
-          response: ResponseBehavior.allowCrossOrigin(),
-        },
-      }),
-    }
-  },
-  expected: FetchTestResult.SUCCESS,
-}), "private to private to local: success.");
-
-promise_test(t => fetchTest(t, {
-  source: { server: Server.HTTPS_PRIVATE },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: {
-      redirect: preflightUrl({
-        server: Server.HTTPS_LOCAL,
-        behavior: { preflight: PreflightBehavior.success(token()) },
-      }),
-    }
-  },
-  fetchOptions: { mode: "no-cors" },
-  expected: FetchTestResult.OPAQUE,
-}), "private to private to local: no-cors success.");
-
-// private -> local -> private
-//
-// Request 1 (private -> local): preflight required.
-// Request 2 (private -> private): no preflight.
-//
-// This verifies that PNA checks are applied independently to every step in a
-// redirect chain.
-
-promise_test(t => fetchTest(t, {
-  source: { server: Server.HTTPS_PRIVATE },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: {
-      response: ResponseBehavior.allowCrossOrigin(),
-      redirect: preflightUrl({
-        server: Server.HTTPS_PRIVATE,
-      }),
-    }
-  },
-  expected: FetchTestResult.FAILURE,
-}), "private to local to private: failed preflight.");
-
-promise_test(t => fetchTest(t, {
-  source: { server: Server.HTTPS_PRIVATE },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-      redirect: preflightUrl({
-        server: Server.HTTPS_PRIVATE,
-        behavior: { response: ResponseBehavior.allowCrossOrigin() },
-      }),
-    }
-  },
-  expected: FetchTestResult.SUCCESS,
-}), "private to local to private: success.");
-
-promise_test(t => fetchTest(t, {
-  source: { server: Server.HTTPS_PRIVATE },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      redirect: preflightUrl({ server: Server.HTTPS_PRIVATE }),
-    }
-  },
-  fetchOptions: { mode: "no-cors" },
-  expected: FetchTestResult.OPAQUE,
-}), "private to local to private: no-cors success.");
-
-// public -> private -> local
-//
-// Request 1 (public -> private): preflight required.
-// Request 2 (public -> local): preflight required.
-//
-// This verifies that PNA checks are applied to every step in a redirect chain.
-
-promise_test(t => fetchTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: {
-      response: ResponseBehavior.allowCrossOrigin(),
-      redirect: preflightUrl({
-        server: Server.HTTPS_LOCAL,
-        behavior: {
-          preflight: PreflightBehavior.success(token()),
-          response: ResponseBehavior.allowCrossOrigin(),
-        },
-      }),
-    }
-  },
-  expected: FetchTestResult.FAILURE,
-}), "public to private to local: failed first preflight.");
-
-promise_test(t => fetchTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-      redirect: preflightUrl({
-        server: Server.HTTPS_LOCAL,
-        behavior: {
-          response: ResponseBehavior.allowCrossOrigin(),
-        },
-      }),
-    }
-  },
-  expected: FetchTestResult.FAILURE,
-}), "public to private to local: failed second preflight.");
-
-promise_test(t => fetchTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-      redirect: preflightUrl({
-        server: Server.HTTPS_LOCAL,
-        behavior: {
-          preflight: PreflightBehavior.success(token()),
-          response: ResponseBehavior.allowCrossOrigin(),
-        },
-      }),
-    }
-  },
-  expected: FetchTestResult.SUCCESS,
-}), "public to private to local: success.");
-
-promise_test(t => fetchTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      redirect: preflightUrl({
-        server: Server.HTTPS_LOCAL,
-        behavior: { preflight: PreflightBehavior.success(token()) },
-      }),
-    }
-  },
-  fetchOptions: { mode: "no-cors" },
-  expected: FetchTestResult.OPAQUE,
-}), "public to private to local: no-cors success.");
-
-// treat-as-public -> local -> private
-
-// Request 1 (treat-as-public -> local): preflight required.
-// Request 2 (treat-as-public -> private): preflight required.
-
-// This verifies that PNA checks are applied to every step in a redirect chain.
-
-promise_test(t => fetchTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.OTHER_HTTPS_LOCAL,
-    behavior: {
-      redirect: preflightUrl({
-        server: Server.HTTPS_PRIVATE,
-        behavior: {
-          preflight: PreflightBehavior.success(token()),
-          response: ResponseBehavior.allowCrossOrigin(),
-        },
-      }),
-      response: ResponseBehavior.allowCrossOrigin(),
-    }
-  },
-  expected: FetchTestResult.FAILURE,
-}), "treat-as-public to local to private: failed first preflight.");
-
-promise_test(t => fetchTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.OTHER_HTTPS_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      redirect: preflightUrl({
-        server: Server.HTTPS_PRIVATE,
-        behavior: {
-          preflight: PreflightBehavior.noPnaHeader(token()),
-          response: ResponseBehavior.allowCrossOrigin(),
-        },
-      }),
-      response: ResponseBehavior.allowCrossOrigin(),
-    }
-  },
-  expected: FetchTestResult.FAILURE,
-}), "treat-as-public to local to private: failed second preflight.");
-
-promise_test(t => fetchTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.OTHER_HTTPS_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      redirect: preflightUrl({
-        server: Server.HTTPS_PRIVATE,
-        behavior: {
-          preflight: PreflightBehavior.success(token()),
-          response: ResponseBehavior.allowCrossOrigin(),
-        },
-      }),
-      response: ResponseBehavior.allowCrossOrigin(),
-    }
-  },
-  expected: FetchTestResult.SUCCESS,
-}), "treat-as-public to local to private: success.");
-
-promise_test(t => fetchTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.OTHER_HTTPS_LOCAL,
-    behavior: {
-      redirect: preflightUrl({
-        server: Server.HTTPS_PRIVATE,
-        behavior: { preflight: PreflightBehavior.success(token()) },
-      }),
-    }
-  },
-  fetchOptions: { mode: "no-cors" },
-  expected: FetchTestResult.FAILURE,
-}), "treat-as-public to local to private: no-cors failed first preflight.");
-
-promise_test(t => fetchTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.OTHER_HTTPS_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      redirect: preflightUrl({ server: Server.HTTPS_PRIVATE }),
-    }
-  },
-  fetchOptions: { mode: "no-cors" },
-  expected: FetchTestResult.FAILURE,
-}), "treat-as-public to local to private: no-cors failed second preflight.");
-
-promise_test(t => fetchTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.OTHER_HTTPS_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      redirect: preflightUrl({
-        server: Server.HTTPS_PRIVATE,
-        behavior: { preflight: PreflightBehavior.success(token()) },
-      }),
-    }
-  },
-  fetchOptions: { mode: "no-cors" },
-  expected: FetchTestResult.OPAQUE,
-}), "treat-as-public to local to private: no-cors success.");
-
-// treat-as-public -> local (same-origin) -> private
-
-// Request 1 (treat-as-public -> local (same-origin)): no preflight required.
-// Request 2 (treat-as-public -> private): preflight required.
-
-// This verifies that PNA checks are applied only to the second step in a
-// redirect chain if the first step is same-origin and the origin is potentially
-// trustworthy.
-
-promise_test(t => fetchTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: {
-      redirect: preflightUrl({
-        server: Server.HTTPS_PRIVATE,
-        behavior: {
-          preflight: PreflightBehavior.noPnaHeader(token()),
-          response: ResponseBehavior.allowCrossOrigin(),
-        },
-      }),
-    }
-  },
-  expected: FetchTestResult.FAILURE,
-}), "treat-as-public to local (same-origin) to private: failed second preflight.");
-
-promise_test(t => fetchTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: {
-      redirect: preflightUrl({
-        server: Server.HTTPS_PRIVATE,
-        behavior: {
-          preflight: PreflightBehavior.success(token()),
-          response: ResponseBehavior.allowCrossOrigin(),
-        },
-      }),
-    }
-  },
-  expected: FetchTestResult.SUCCESS,
-}), "treat-as-public to local (same-origin) to private: success.");
-
-promise_test(t => fetchTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: {
-      redirect: preflightUrl({ server: Server.HTTPS_PRIVATE }),
-    }
-  },
-  fetchOptions: { mode: "no-cors" },
-  expected: FetchTestResult.FAILURE,
-}), "treat-as-public to local (same-origin) to private: no-cors failed second preflight.");
-
-promise_test(t => fetchTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: {
-      redirect: preflightUrl({
-        server: Server.HTTPS_PRIVATE,
-        behavior: { preflight: PreflightBehavior.success(token()) },
-      }),
-    }
-  },
-  fetchOptions: { mode: "no-cors" },
-  expected: FetchTestResult.OPAQUE,
-}), "treat-as-public to local (same-origin) to private: no-cors success.");
-
-// treat-as-public -> private -> local
-
-// Request 1 (treat-as-public -> private): preflight required.
-// Request 2 (treat-as-public -> local): preflight required.
-
-// This verifies that PNA checks are applied to every step in a redirect chain.
-
-promise_test(t => fetchTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: {
-      preflight: PreflightBehavior.noPnaHeader(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-      redirect: preflightUrl({
-        server: Server.OTHER_HTTPS_LOCAL,
-        behavior: {
-          preflight: PreflightBehavior.success(token()),
-          response: ResponseBehavior.allowCrossOrigin(),
-        },
-      }),
-    }
-  },
-  expected: FetchTestResult.FAILURE,
-}), "treat-as-public to private to local: failed first preflight.");
-
-promise_test(t => fetchTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-      redirect: preflightUrl({
-        server: Server.OTHER_HTTPS_LOCAL,
-        behavior: { response: ResponseBehavior.allowCrossOrigin() },
-      }),
-    }
-  },
-  expected: FetchTestResult.FAILURE,
-}), "treat-as-public to private to local: failed second preflight.");
-
-promise_test(t => fetchTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-      redirect: preflightUrl({
-        server: Server.OTHER_HTTPS_LOCAL,
-        behavior: {
-          preflight: PreflightBehavior.success(token()),
-          response: ResponseBehavior.allowCrossOrigin(),
-        },
-      }),
-    }
-  },
-  expected: FetchTestResult.SUCCESS,
-}), "treat-as-public to private to local: success.");
-
-promise_test(t => fetchTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: {
-      redirect: preflightUrl({
-        server: Server.OTHER_HTTPS_LOCAL,
-        behavior: { preflight: PreflightBehavior.success(token()) },
-      }),
-    }
-  },
-  fetchOptions: { mode: "no-cors" },
-  expected: FetchTestResult.FAILURE,
-}), "treat-as-public to private to local: no-cors failed first preflight.");
-
-promise_test(t => fetchTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      redirect: preflightUrl({ server: Server.OTHER_HTTPS_LOCAL }),
-    }
-  },
-  fetchOptions: { mode: "no-cors" },
-  expected: FetchTestResult.FAILURE,
-}), "treat-as-public to private to local: no-cors failed second preflight.");
-
-promise_test(t => fetchTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      redirect: preflightUrl({
-        server: Server.OTHER_HTTPS_LOCAL,
-        behavior: { preflight: PreflightBehavior.success(token()) },
-      }),
-    }
-  },
-  fetchOptions: { mode: "no-cors" },
-  expected: FetchTestResult.OPAQUE,
-}), "treat-as-public to private to local: no-cors success.");
-
-// treat-as-public -> private -> local (same-origin)
-
-// Request 1 (treat-as-public -> private): preflight required.
-// Request 2 (treat-as-public -> local (same-origin)): no preflight required.
-
-// This verifies that PNA checks are only applied to the first step in a
-// redirect chain if the second step is same-origin and the origin is
-// potentially trustworthy.
-
-promise_test(t => fetchTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: {
-      preflight: PreflightBehavior.noPnaHeader(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-      redirect: preflightUrl({
-        server: Server.HTTPS_LOCAL,
-        behavior: { response: ResponseBehavior.allowCrossOrigin() },
-      }),
-    }
-  },
-  expected: FetchTestResult.FAILURE,
-}), "treat-as-public to private to local (same-origin): failed first preflight.");
-
-promise_test(t => fetchTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-      redirect: preflightUrl({
-        server: Server.HTTPS_LOCAL,
-        behavior: { response: ResponseBehavior.allowCrossOrigin() },
-      }),
-    }
-  },
-  expected: FetchTestResult.SUCCESS,
-}), "treat-as-public to private to local (same-origin): success.");
-
-promise_test(t => fetchTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: {
-      redirect: preflightUrl({ server: Server.HTTPS_LOCAL }),
-    }
-  },
-  fetchOptions: { mode: "no-cors" },
-  expected: FetchTestResult.FAILURE,
-}), "treat-as-public to private to local (same-origin): no-cors failed first preflight.");
-
-promise_test(t => fetchTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      redirect: preflightUrl({ server: Server.HTTPS_LOCAL }),
-    }
-  },
-  fetchOptions: { mode: "no-cors" },
-  expected: FetchTestResult.OPAQUE,
-}), "treat-as-public to private to local (same-origin): no-cors success.");
diff --git a/tests/wpt/tests/fetch/private-network-access/resources/anchor.html b/tests/wpt/tests/fetch/private-network-access/resources/anchor.html
deleted file mode 100644
index 0780b3fa502..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/resources/anchor.html
+++ /dev/null
@@ -1,16 +0,0 @@
-<!DOCTYPE html>
-<meta charset="utf-8">
-<title>Anchor</title>
-<body></body>
-<script>
-  window.onmessage = (event) => {
-    window.onmessage = (event) => parent.postMessage(event.data, "*");
-    const { url } = event.data;
-    const anchor = document.createElement('a');
-    anchor.href = url;
-    anchor.rel = 'opener';
-    anchor.target = '_blank';
-    document.body.appendChild(anchor);
-    anchor.click();
-  };
-</script>
diff --git a/tests/wpt/tests/fetch/private-network-access/resources/executor.html b/tests/wpt/tests/fetch/private-network-access/resources/executor.html
deleted file mode 100644
index d71212951cb..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/resources/executor.html
+++ /dev/null
@@ -1,9 +0,0 @@
-<!DOCTYPE html>
-<meta charset="utf-8">
-<title>Executor</title>
-<body></body>
-<script src="/common/dispatcher/dispatcher.js"></script>
-<script>
-  const uuid = new URL(window.location).searchParams.get("executor-uuid");
-  const executor = new Executor(uuid);
-</script>
diff --git a/tests/wpt/tests/fetch/private-network-access/resources/fenced-frame-fetcher.https.html b/tests/wpt/tests/fetch/private-network-access/resources/fenced-frame-fetcher.https.html
deleted file mode 100644
index b14601dba51..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/resources/fenced-frame-fetcher.https.html
+++ /dev/null
@@ -1,25 +0,0 @@
-<!DOCTYPE html>
-<meta charset="utf-8">
-<script src="../../../fenced-frame/resources/utils.js"></script>
-<title>Fetcher</title>
-<script>
-  const url = new URL(location.href).searchParams.get("url");
-  const mode = new URL(location.href).searchParams.get("mode");
-  const method = new URL(location.href).searchParams.get("method");
-  const [error_token, ok_token, body_token, type_token] = parseKeylist();
-
-  fetch(url, {mode: mode, method: method})
-      .then(async function(response) {
-        const body = await response.text();
-        writeValueToServer(ok_token, response.ok);
-        writeValueToServer(body_token, body);
-        writeValueToServer(type_token, response.type);
-        writeValueToServer(error_token, "");
-      })
-      .catch(error => {
-        writeValueToServer(ok_token, "");
-        writeValueToServer(body_token, "");
-        writeValueToServer(type_token, "");
-        writeValueToServer(error_token, error.toString());
-      });
-</script>
\ No newline at end of file
diff --git a/tests/wpt/tests/fetch/private-network-access/resources/fenced-frame-fetcher.https.html.headers b/tests/wpt/tests/fetch/private-network-access/resources/fenced-frame-fetcher.https.html.headers
deleted file mode 100644
index 6247f6d6321..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/resources/fenced-frame-fetcher.https.html.headers
+++ /dev/null
@@ -1 +0,0 @@
-Supports-Loading-Mode: fenced-frame
\ No newline at end of file
diff --git a/tests/wpt/tests/fetch/private-network-access/resources/fenced-frame-private-network-access-target.https.html b/tests/wpt/tests/fetch/private-network-access/resources/fenced-frame-private-network-access-target.https.html
deleted file mode 100644
index 2b55e056f39..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/resources/fenced-frame-private-network-access-target.https.html
+++ /dev/null
@@ -1,8 +0,0 @@
-<!DOCTYPE html>
-<meta charset="utf-8">
-<script src="../../../fenced-frame/resources/utils.js"></script>
-<title>Fenced frame target</title>
-<script>
-  const [frame_loaded_key] = parseKeylist();
-  writeValueToServer(frame_loaded_key, 'loaded');
-</script>
diff --git a/tests/wpt/tests/fetch/private-network-access/resources/fenced-frame-private-network-access.https.html b/tests/wpt/tests/fetch/private-network-access/resources/fenced-frame-private-network-access.https.html
deleted file mode 100644
index 98f118432e0..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/resources/fenced-frame-private-network-access.https.html
+++ /dev/null
@@ -1,14 +0,0 @@
-<!DOCTYPE html>
-<meta charset="utf-8">
-<script src="/resources/testharness.js"></script>
-<script src="../../../fenced-frame/resources/utils.js"></script>
-<script src="/common/utils.js"></script>
-<title>Fenced frame</title>
-<body></body>
-<script>
-(async () => {
-  const target = new URL(location.href).searchParams.get("fenced_frame_url");
-  const urn = await runSelectURL(target);
-  attachFencedFrame(urn);
-})();
-</script>
diff --git a/tests/wpt/tests/fetch/private-network-access/resources/fenced-frame-private-network-access.https.html.headers b/tests/wpt/tests/fetch/private-network-access/resources/fenced-frame-private-network-access.https.html.headers
deleted file mode 100644
index 6247f6d6321..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/resources/fenced-frame-private-network-access.https.html.headers
+++ /dev/null
@@ -1 +0,0 @@
-Supports-Loading-Mode: fenced-frame
\ No newline at end of file
diff --git a/tests/wpt/tests/fetch/private-network-access/resources/fetcher.html b/tests/wpt/tests/fetch/private-network-access/resources/fetcher.html
deleted file mode 100644
index 000a5cc25bb..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/resources/fetcher.html
+++ /dev/null
@@ -1,21 +0,0 @@
-<!DOCTYPE html>
-<meta charset="utf-8">
-<title>Fetcher</title>
-<script>
-  window.addEventListener("message", function (event) {
-    const { url, options } = event.data;
-    fetch(url, options)
-        .then(async function(response) {
-          const body = await response.text();
-          const message = {
-            ok: response.ok,
-            type: response.type,
-            body: body,
-          };
-          parent.postMessage(message, "*");
-        })
-        .catch(error => {
-          parent.postMessage({ error: error.toString() }, "*");
-        });
-  });
-</script>
diff --git a/tests/wpt/tests/fetch/private-network-access/resources/fetcher.js b/tests/wpt/tests/fetch/private-network-access/resources/fetcher.js
deleted file mode 100644
index 3a1859876d4..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/resources/fetcher.js
+++ /dev/null
@@ -1,20 +0,0 @@
-async function doFetch(url) {
-  const response = await fetch(url);
-  const body = await response.text();
-  return {
-    status: response.status,
-    body,
-  };
-}
-
-async function fetchAndPost(url) {
-  try {
-    const message = await doFetch(url);
-    self.postMessage(message);
-  } catch(e) {
-    self.postMessage({ error: e.name });
-  }
-}
-
-const url = new URL(self.location.href).searchParams.get("url");
-fetchAndPost(url);
diff --git a/tests/wpt/tests/fetch/private-network-access/resources/iframed-no-preflight-received.html b/tests/wpt/tests/fetch/private-network-access/resources/iframed-no-preflight-received.html
deleted file mode 100644
index 20b5150d44a..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/resources/iframed-no-preflight-received.html
+++ /dev/null
@@ -1,7 +0,0 @@
-<!DOCTYPE html>
-<meta charset="utf-8">
-<title>Iframed</title>
-<script>
-  const uuid = new URL(window.location).searchParams.get("iframe-uuid");
-  top.postMessage({ uuid, message: "no preflight received" }, "*");
-</script>
diff --git a/tests/wpt/tests/fetch/private-network-access/resources/iframed.html b/tests/wpt/tests/fetch/private-network-access/resources/iframed.html
deleted file mode 100644
index c889c2882a4..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/resources/iframed.html
+++ /dev/null
@@ -1,7 +0,0 @@
-<!DOCTYPE html>
-<meta charset="utf-8">
-<title>Iframed</title>
-<script>
-  const uuid = new URL(window.location).searchParams.get("iframe-uuid");
-  top.postMessage({ uuid, message: "loaded" }, "*");
-</script>
diff --git a/tests/wpt/tests/fetch/private-network-access/resources/iframer.html b/tests/wpt/tests/fetch/private-network-access/resources/iframer.html
deleted file mode 100644
index 304cc54ae44..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/resources/iframer.html
+++ /dev/null
@@ -1,9 +0,0 @@
-<!DOCTYPE html>
-<meta charset="utf-8">
-<title>Iframer</title>
-<body></body>
-<script>
-  const child = document.createElement("iframe");
-  child.src = new URL(window.location).searchParams.get("url");
-  document.body.appendChild(child);
-</script>
diff --git a/tests/wpt/tests/fetch/private-network-access/resources/no-preflight-received.html b/tests/wpt/tests/fetch/private-network-access/resources/no-preflight-received.html
deleted file mode 100644
index 5ee533e1820..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/resources/no-preflight-received.html
+++ /dev/null
@@ -1,6 +0,0 @@
-<!DOCTYPE html>
-<meta charset="utf-8">
-<title>No preflight received</title>
-<script>
-  if (window.opener) window.opener.postMessage("no preflight received", "*");
-</script>
diff --git a/tests/wpt/tests/fetch/private-network-access/resources/open-to-existing-window.html b/tests/wpt/tests/fetch/private-network-access/resources/open-to-existing-window.html
deleted file mode 100644
index 6460024bc80..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/resources/open-to-existing-window.html
+++ /dev/null
@@ -1,12 +0,0 @@
-<!DOCTYPE html>
-<meta charset="utf-8">
-<title>Opener to an existing window</title>
-<body></body>
-<script>
-  window.onmessage = (event) => {
-    window.onmessage = (event) => parent.postMessage(event.data, "*");
-    const { url, token } = event.data;
-    window.open('', token);
-    window.open(url, token);
-  };
-</script>
diff --git a/tests/wpt/tests/fetch/private-network-access/resources/openee.html b/tests/wpt/tests/fetch/private-network-access/resources/openee.html
deleted file mode 100644
index 8f0a859cb32..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/resources/openee.html
+++ /dev/null
@@ -1,8 +0,0 @@
-<!DOCTYPE html>
-<meta charset="utf-8">
-<title>Openee</title>
-<script>
-  if (window.opener) {
-    window.opener.postMessage("success", "*");
-  }
-</script>
diff --git a/tests/wpt/tests/fetch/private-network-access/resources/opener.html b/tests/wpt/tests/fetch/private-network-access/resources/opener.html
deleted file mode 100644
index 78b66c6db7b..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/resources/opener.html
+++ /dev/null
@@ -1,11 +0,0 @@
-<!DOCTYPE html>
-<meta charset="utf-8">
-<title>Opener</title>
-<body></body>
-<script>
-  window.onmessage = (event) => {
-    window.onmessage = (event) => parent.postMessage(event.data, "*");
-    const { url } = event.data;
-    window.open(url);
-  };
-</script>
diff --git a/tests/wpt/tests/fetch/private-network-access/resources/preflight.py b/tests/wpt/tests/fetch/private-network-access/resources/preflight.py
deleted file mode 100644
index 44676632394..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/resources/preflight.py
+++ /dev/null
@@ -1,191 +0,0 @@
-# This endpoint responds to both preflight requests and the subsequent requests.
-#
-# Its behavior can be configured with various search/GET parameters, all of
-# which are optional:
-#
-# - treat-as-public-once: Must be a valid UUID if set.
-#   If set, then this endpoint expects to receive a non-preflight request first,
-#   for which it sets the `Content-Security-Policy: treat-as-public-address`
-#   response header. This allows testing "DNS rebinding", where a URL first
-#   resolves to the public IP address space, then a non-public IP address space.
-# - preflight-uuid: Must be a valid UUID if set, distinct from the value of the
-#   `treat-as-public-once` parameter if both are set.
-#   If set, then this endpoint expects to receive a preflight request first
-#   followed by a regular request, as in the regular CORS protocol. If the
-#   `treat-as-public-once` header is also set, it takes precedence: this
-#   endpoint expects to receive a non-preflight request first, then a preflight
-#   request, then finally a regular request.
-#   If unset, then this endpoint expects to receive no preflight request, only
-#   a regular (non-OPTIONS) request.
-# - preflight-headers: Valid values are:
-#   - cors: this endpoint responds with valid CORS headers to preflights. These
-#     should be sufficient for non-PNA preflight requests to succeed, but not
-#     for PNA-specific preflight requests.
-#   - cors+pna: this endpoint responds with valid CORS and PNA headers to
-#     preflights. These should be sufficient for both non-PNA preflight
-#     requests and PNA-specific preflight requests to succeed.
-#   - cors+pna+sw: this endpoint responds with valid CORS and PNA headers and
-#     "Access-Control-Allow-Headers: Service-Worker" to preflights. These should
-#     be sufficient for both non-PNA preflight requests and PNA-specific
-#     preflight requests to succeed. This allows the main request to fetch a
-#     service worker script.
-#   - unspecified, or any other value: this endpoint responds with no CORS or
-#     PNA headers. Preflight requests should fail.
-# - final-headers: Valid values are:
-#   - cors: this endpoint responds with valid CORS headers to CORS-enabled
-#     non-preflight requests. These should be sufficient for non-preflighted
-#     CORS-enabled requests to succeed.
-#   - unspecified: this endpoint responds with no CORS headers to non-preflight
-#     requests. This should fail CORS-enabled requests, but be sufficient for
-#     no-CORS requests.
-#
-# The following parameters only affect non-preflight responses:
-#
-# - redirect: If set, the response code is set to 301 and the `Location`
-#   response header is set to this value.
-# - mime-type: If set, the `Content-Type` response header is set to this value.
-# - file: Specifies a path (relative to this file's directory) to a file. If
-#   set, the response body is copied from this file.
-# - random-js-prefix: If set to any value, the response body is prefixed with
-#   a Javascript comment line containing a random value. This is useful in
-#   service worker tests, since service workers are only updated if the new
-#   script is not byte-for-byte identical with the old script.
-# - body: If set and `file` is not, the response body is set to this value.
-#
-
-import os
-import random
-
-from wptserve.utils import isomorphic_encode
-
-_ACAO = ("Access-Control-Allow-Origin", "*")
-_ACAPN = ("Access-Control-Allow-Private-Network", "true")
-_ACAH = ("Access-Control-Allow-Headers", "Service-Worker")
-
-def _get_response_headers(method, mode, origin):
-  acam = ("Access-Control-Allow-Methods", method)
-
-  if mode == b"cors":
-    return [acam, _ACAO]
-
-  if mode == b"cors+pna":
-    return [acam, _ACAO, _ACAPN]
-
-  if mode == b"cors+pna+sw":
-    return [acam, _ACAO, _ACAPN, _ACAH]
-
-  if mode == b"navigation":
-    return [
-        acam,
-        ("Access-Control-Allow-Origin", origin),
-        ("Access-Control-Allow-Credentials", "true"),
-        _ACAPN,
-    ]
-
-  return []
-
-def _get_expect_single_preflight(request):
-  return request.GET.get(b"expect-single-preflight")
-
-def _is_preflight_optional(request):
-  return request.GET.get(b"is-preflight-optional") or \
-         request.GET.get(b"file-if-no-preflight-received")
-
-def _get_preflight_uuid(request):
-  return request.GET.get(b"preflight-uuid")
-
-def _is_loaded_in_fenced_frame(request):
-  return request.GET.get(b"is-loaded-in-fenced-frame")
-
-def _should_treat_as_public_once(request):
-  uuid = request.GET.get(b"treat-as-public-once")
-  if uuid is None:
-    # If the search parameter is not given, never treat as public.
-    return False
-
-  # If the parameter is given, we treat the request as public only if the UUID
-  # has never been seen and stashed.
-  result = request.server.stash.take(uuid) is None
-  request.server.stash.put(uuid, "")
-  return result
-
-def _handle_preflight_request(request, response):
-  if _should_treat_as_public_once(request):
-    return (400, [], "received preflight for first treat-as-public request")
-
-  uuid = _get_preflight_uuid(request)
-  if uuid is None:
-    return (400, [], "missing `preflight-uuid` param from preflight URL")
-
-  value = request.server.stash.take(uuid)
-  request.server.stash.put(uuid, "preflight")
-  if _get_expect_single_preflight(request) and value is not None:
-    return (400, [], "received duplicated preflight")
-
-  method = request.headers.get("Access-Control-Request-Method")
-  mode = request.GET.get(b"preflight-headers")
-  origin = request.headers.get("Origin")
-  headers = _get_response_headers(method, mode, origin)
-
-  return (headers, "preflight")
-
-def _final_response_body(request, missing_preflight):
-  file_name = None
-  if missing_preflight and not request.GET.get(b"is-preflight-optional"):
-    file_name = request.GET.get(b"file-if-no-preflight-received")
-  if file_name is None:
-    file_name = request.GET.get(b"file")
-  if file_name is None:
-    return request.GET.get(b"body") or "success"
-
-  prefix = b""
-  if request.GET.get(b"random-js-prefix"):
-    value = random.randint(0, 1000000000)
-    prefix = isomorphic_encode("// Random value: {}\n\n".format(value))
-
-  path = os.path.join(os.path.dirname(isomorphic_encode(__file__)), file_name)
-  with open(path, 'rb') as f:
-    contents = f.read()
-
-  return prefix + contents
-
-def _handle_final_request(request, response):
-  missing_preflight = False
-  if _should_treat_as_public_once(request):
-    headers = [("Content-Security-Policy", "treat-as-public-address"),]
-  else:
-    uuid = _get_preflight_uuid(request)
-    if uuid is not None:
-      missing_preflight = request.server.stash.take(uuid) is None
-      if missing_preflight and not _is_preflight_optional(request):
-        return (405, [], "no preflight received")
-      request.server.stash.put(uuid, "final")
-
-    mode = request.GET.get(b"final-headers")
-    origin = request.headers.get("Origin")
-    headers = _get_response_headers(request.method, mode, origin)
-
-  redirect = request.GET.get(b"redirect")
-  if redirect is not None:
-    headers.append(("Location", redirect))
-    return (301, headers, b"")
-
-  mime_type = request.GET.get(b"mime-type")
-  if mime_type is not None:
-    headers.append(("Content-Type", mime_type),)
-
-  if _is_loaded_in_fenced_frame(request):
-    headers.append(("Supports-Loading-Mode", "fenced-frame"))
-
-  body = _final_response_body(request, missing_preflight)
-  return (headers, body)
-
-def main(request, response):
-  try:
-    if request.method == "OPTIONS":
-      return _handle_preflight_request(request, response)
-    else:
-      return _handle_final_request(request, response)
-  except BaseException as e:
-    # Surface exceptions to the client, where they show up as assertion errors.
-    return (500, [("X-exception", str(e))], "exception: {}".format(e))
diff --git a/tests/wpt/tests/fetch/private-network-access/resources/service-worker-bridge.html b/tests/wpt/tests/fetch/private-network-access/resources/service-worker-bridge.html
deleted file mode 100644
index 816de535fea..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/resources/service-worker-bridge.html
+++ /dev/null
@@ -1,155 +0,0 @@
-<!DOCTYPE html>
-<meta charset="utf-8">
-<title>ServiceWorker Bridge</title>
-<script src="/resources/testdriver.js"></script>
-<script src="/resources/testdriver-vendor.js"></script>
-<script>
-  // This bridge document exists to perform service worker commands on behalf
-  // of a test page. It lives within the same scope (including origin) as the
-  // service worker script, allowing it to be controlled by the service worker.
-
-  async function register({ url, options }) {
-    await navigator.serviceWorker.register(url, options);
-    return { loaded: true };
-  }
-
-  async function unregister({ scope }) {
-    const registration = await navigator.serviceWorker.getRegistration(scope);
-    if (!registration) {
-      return { unregistered: false, error: "no registration" };
-    }
-
-    const unregistered = await registration.unregister();
-    return { unregistered };
-  }
-
-  async function update({ scope }) {
-    const registration = await navigator.serviceWorker.getRegistration(scope);
-    if (!registration) {
-      return { updated: false, error: "no registration" };
-    }
-
-    const newRegistration = await registration.update();
-    return { updated: true };
-  }
-
-  // Total number of `controllerchange` events since document creation.
-  let totalNumControllerChanges = 0;
-  navigator.serviceWorker.addEventListener("controllerchange", () => {
-    totalNumControllerChanges++;
-  });
-
-  // Using `navigator.serviceWorker.ready` does not allow noticing new
-  // controllers after an update, so we count `controllerchange` events instead.
-  // This has the added benefit of ensuring that subsequent fetches are handled
-  // by the service worker, whereas `ready` does not guarantee that.
-  async function wait({ numControllerChanges }) {
-    if (totalNumControllerChanges >= numControllerChanges) {
-      return {
-        controlled: !!navigator.serviceWorker.controller,
-        numControllerChanges: totalNumControllerChanges,
-      };
-    }
-
-    let remaining = numControllerChanges - totalNumControllerChanges;
-    await new Promise((resolve) => {
-      navigator.serviceWorker.addEventListener("controllerchange", () => {
-        remaining--;
-        if (remaining == 0) {
-          resolve();
-        }
-      });
-    });
-
-    return {
-      controlled: !!navigator.serviceWorker.controller,
-      numControllerChanges,
-    };
-  }
-
-  async function doFetch({ url, options }) {
-    const response = await fetch(url, options);
-    const body = await response.text();
-    return {
-      ok: response.ok,
-      body,
-    };
-  }
-
-  async function setPermission({ name, state }) {
-    await test_driver.set_permission({ name }, state);
-
-    // Double-check, just to be sure.
-    // See the comment in `../service-worker-background-fetch.js`.
-    const permissionStatus = await navigator.permissions.query({ name });
-    return { state: permissionStatus.state };
-  }
-
-  async function backgroundFetch({ scope, url }) {
-    const registration = await navigator.serviceWorker.getRegistration(scope);
-    if (!registration) {
-      return { error: "no registration" };
-    }
-
-    const fetchRegistration =
-        await registration.backgroundFetch.fetch("test", url);
-    const resultReady = new Promise((resolve) => {
-      fetchRegistration.addEventListener("progress", () => {
-        if (fetchRegistration.result) {
-          resolve();
-        }
-      });
-    });
-
-    let ok;
-    let body;
-    const record = await fetchRegistration.match(url);
-    if (record) {
-      const response = await record.responseReady;
-      body = await response.text();
-      ok = response.ok;
-    }
-
-    // Wait for the result after getting the response. If the steps are
-    // inverted, then sometimes the response is not found due to an
-    // `UnknownError`.
-    await resultReady;
-
-    return {
-      result: fetchRegistration.result,
-      failureReason: fetchRegistration.failureReason,
-      ok,
-      body,
-    };
-  }
-
-  function getAction(action) {
-    switch (action) {
-      case "register":
-        return register;
-      case "unregister":
-        return unregister;
-      case "wait":
-        return wait;
-      case "update":
-        return update;
-      case "fetch":
-        return doFetch;
-      case "set-permission":
-        return setPermission;
-      case "background-fetch":
-        return backgroundFetch;
-    }
-  }
-
-  window.addEventListener("message", async (evt) => {
-    let message;
-    try {
-      const action = getAction(evt.data.action);
-      message = await action(evt.data);
-    } catch(e) {
-      message = { error: e.name };
-    }
-    parent.postMessage(message, "*");
-  });
-</script>
diff --git a/tests/wpt/tests/fetch/private-network-access/resources/service-worker-fetch-all.js b/tests/wpt/tests/fetch/private-network-access/resources/service-worker-fetch-all.js
deleted file mode 100644
index 78ac8d1576b..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/resources/service-worker-fetch-all.js
+++ /dev/null
@@ -1,20 +0,0 @@
-self.addEventListener("install", () => {
-    // Skip waiting before replacing the previously-active service worker, if any.
-    // This allows the bridge script to notice the controller change and query
-    // the install time via fetch.
-    self.skipWaiting();
-});
-
-self.addEventListener("activate", (event) => {
-    // Claim all clients so that the bridge script notices the activation.
-    event.waitUntil(self.clients.claim());
-});
-
-self.addEventListener("fetch", (event) => {
-  const url = new URL(event.request.url).searchParams.get("proxied-url");
-  if (url) {
-    event.respondWith(fetch(url));
-  } else {
-    event.respondWith(fetch(event.request));
-  }
-});
diff --git a/tests/wpt/tests/fetch/private-network-access/resources/service-worker.js b/tests/wpt/tests/fetch/private-network-access/resources/service-worker.js
deleted file mode 100644
index bca71ad910c..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/resources/service-worker.js
+++ /dev/null
@@ -1,18 +0,0 @@
-self.addEventListener("install", () => {
-  // Skip waiting before replacing the previously-active service worker, if any.
-  // This allows the bridge script to notice the controller change and query
-  // the install time via fetch.
-  self.skipWaiting();
-});
-
-self.addEventListener("activate", (event) => {
-  // Claim all clients so that the bridge script notices the activation.
-  event.waitUntil(self.clients.claim());
-});
-
-self.addEventListener("fetch", (event) => {
-  const url = new URL(event.request.url).searchParams.get("proxied-url");
-  if (url) {
-    event.respondWith(fetch(url));
-  }
-});
diff --git a/tests/wpt/tests/fetch/private-network-access/resources/shared-fetcher.js b/tests/wpt/tests/fetch/private-network-access/resources/shared-fetcher.js
deleted file mode 100644
index 30bde1e0542..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/resources/shared-fetcher.js
+++ /dev/null
@@ -1,23 +0,0 @@
-async function doFetch(url) {
-  const response = await fetch(url);
-  const body = await response.text();
-  return {
-    status: response.status,
-    body,
-  };
-}
-
-async function fetchAndPost(url, port) {
-  try {
-    const message = await doFetch(url);
-    port.postMessage(message);
-  } catch(e) {
-    port.postMessage({ error: e.name });
-  }
-}
-
-const url = new URL(self.location.href).searchParams.get("url");
-
-self.addEventListener("connect", async (evt) => {
-  await fetchAndPost(url, evt.ports[0]);
-});
diff --git a/tests/wpt/tests/fetch/private-network-access/resources/shared-worker-blob-fetcher.html b/tests/wpt/tests/fetch/private-network-access/resources/shared-worker-blob-fetcher.html
deleted file mode 100644
index a79869b2f96..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/resources/shared-worker-blob-fetcher.html
+++ /dev/null
@@ -1,50 +0,0 @@
-<!DOCTYPE html>
-<meta charset="utf-8">
-<title>SharedWorker Blob Fetcher</title>
-<script>
-  window.addEventListener("message", function (evt) {
-    let { url } = evt.data;
-
-    const workerScriptContent = `
-      async function doFetch(url) {
-        const response = await fetch(url);
-        const body = await response.text();
-        return {
-          status: response.status,
-          body,
-        };
-      }
-
-      async function fetchAndPost(url, port) {
-        try {
-          const message = await doFetch(url);
-          port.postMessage(message);
-        } catch(e) {
-          port.postMessage({ error: e.name });
-        }
-      }
-
-      const url = "${url}";
-
-      self.addEventListener("connect", async (evt) => {
-        await fetchAndPost(url, evt.ports[0]);
-      });
-    `;
-    const blob =
-        new Blob([workerScriptContent], {type: 'application/javascript'});
-    const workerScriptUrl = URL.createObjectURL(blob);
-
-    const worker = new SharedWorker(workerScriptUrl);
-
-    URL.revokeObjectURL(workerScriptUrl);
-
-    worker.onerror = (evt) => {
-      parent.postMessage({ error: evt.message || "unknown error" }, "*");
-    };
-
-    worker.port.addEventListener("message", (evt) => {
-      parent.postMessage(evt.data, "*");
-    });
-    worker.port.start();
-  });
-</script>
diff --git a/tests/wpt/tests/fetch/private-network-access/resources/shared-worker-fetcher.html b/tests/wpt/tests/fetch/private-network-access/resources/shared-worker-fetcher.html
deleted file mode 100644
index 4af4b1f2395..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/resources/shared-worker-fetcher.html
+++ /dev/null
@@ -1,19 +0,0 @@
-<!DOCTYPE html>
-<meta charset="utf-8">
-<title>SharedWorker Fetcher</title>
-<script>
-  window.addEventListener("message", function (evt) {
-    let { url } = evt.data;
-
-    const worker = new SharedWorker(url);
-
-    worker.onerror = (evt) => {
-      parent.postMessage({ error: evt.message || "unknown error" }, "*");
-    };
-
-    worker.port.addEventListener("message", (evt) => {
-      parent.postMessage(evt.data, "*");
-    });
-    worker.port.start();
-  });
-</script>
diff --git a/tests/wpt/tests/fetch/private-network-access/resources/socket-opener.html b/tests/wpt/tests/fetch/private-network-access/resources/socket-opener.html
deleted file mode 100644
index 48d27216bed..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/resources/socket-opener.html
+++ /dev/null
@@ -1,15 +0,0 @@
-<!DOCTYPE html>
-<meta charset="utf-8">
-<title>WebSocket Opener</title>
-<script>
-  window.addEventListener("message", function (event) {
-    const socket = new WebSocket(event.data);
-
-    socket.onopen = () => {
-      parent.postMessage("open", "*");
-    };
-    socket.onclose = (evt) => {
-      parent.postMessage(`close: code ${evt.code}`, "*");
-    };
-  });
-</script>
diff --git a/tests/wpt/tests/fetch/private-network-access/resources/support.sub.js b/tests/wpt/tests/fetch/private-network-access/resources/support.sub.js
deleted file mode 100644
index 6d0743e0f8f..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/resources/support.sub.js
+++ /dev/null
@@ -1,920 +0,0 @@
-// Creates a new iframe in `doc`, calls `func` on it and appends it as a child
-// of `doc`.
-// Returns a promise that resolves to the iframe once loaded (successfully or
-// not).
-// The iframe is removed from `doc` once test `t` is done running.
-//
-// NOTE: There exists no interoperable way to check whether an iframe failed to
-// load, so this should only be used when the iframe is expected to load. It
-// also means we cannot wire the iframe's `error` event to a promise
-// rejection. See: https://github.com/whatwg/html/issues/125
-function appendIframeWith(t, doc, func) {
-  return new Promise(resolve => {
-      const child = doc.createElement("iframe");
-      t.add_cleanup(() => child.remove());
-
-      child.addEventListener("load", () => resolve(child), { once: true });
-      func(child);
-      doc.body.appendChild(child);
-    });
-}
-
-// Appends a child iframe to `doc` sourced from `src`.
-//
-// See `appendIframeWith()` for more details.
-function appendIframe(t, doc, src) {
-  return appendIframeWith(t, doc, child => { child.src = src; });
-}
-
-// Registers an event listener that will resolve this promise when this
-// window receives a message posted to it.
-//
-// `options` has the following shape:
-//
-//  {
-//    source: If specified, this function waits for the first message from the
-//      given source only, ignoring other messages.
-//
-//    filter: If specified, this function calls `filter` on each incoming
-//      message, and resolves iff it returns true.
-//  }
-//
-function futureMessage(options) {
-  return new Promise(resolve => {
-    window.addEventListener("message", (e) => {
-      if (options?.source && options.source !== e.source) {
-        return;
-      }
-
-      if (options?.filter && !options.filter(e.data)) {
-        return;
-      }
-
-      resolve(e.data);
-    });
-  });
-};
-
-// Like `promise_test()`, but executes tests in parallel like `async_test()`.
-//
-// Cribbed from COEP tests.
-function promise_test_parallel(promise, description) {
-  async_test(test => {
-    promise(test)
-        .then(() => test.done())
-        .catch(test.step_func(error => { throw error; }));
-  }, description);
-};
-
-async function postMessageAndAwaitReply(target, message) {
-  const reply = futureMessage({ source: target });
-  target.postMessage(message, "*");
-  return await reply;
-}
-
-// Maps protocol (without the trailing colon) and address space to port.
-const SERVER_PORTS = {
-  "http": {
-    "local": {{ports[http][0]}},
-    "private": {{ports[http-local][0]}},
-    "public": {{ports[http-public][0]}},
-  },
-  "https": {
-    "local": {{ports[https][0]}},
-    "other-local": {{ports[https][1]}},
-    "private": {{ports[https-local][0]}},
-    "public": {{ports[https-public][0]}},
-  },
-  "ws": {
-    "local": {{ports[ws][0]}},
-  },
-  "wss": {
-    "local": {{ports[wss][0]}},
-  },
-};
-
-// A `Server` is a web server accessible by tests. It has the following shape:
-//
-// {
-//   addressSpace: the IP address space of the server ("local", "private" or
-//     "public"),
-//   name: a human-readable name for the server,
-//   port: the port on which the server listens for connections,
-//   protocol: the protocol (including trailing colon) spoken by the server,
-// }
-//
-// Constants below define the available servers, which can also be accessed
-// programmatically with `get()`.
-class Server {
-  // Maps the given `protocol` (without a trailing colon) and `addressSpace` to
-  // a server. Returns null if no such server exists.
-  static get(protocol, addressSpace) {
-    const ports = SERVER_PORTS[protocol];
-    if (ports === undefined) {
-      return null;
-    }
-
-    const port = ports[addressSpace];
-    if (port === undefined) {
-      return null;
-    }
-
-    return {
-      addressSpace,
-      name: `${protocol}-${addressSpace}`,
-      port,
-      protocol: protocol + ':',
-    };
-  }
-
-  static HTTP_LOCAL = Server.get("http", "local");
-  static HTTP_PRIVATE = Server.get("http", "private");
-  static HTTP_PUBLIC = Server.get("http", "public");
-  static HTTPS_LOCAL = Server.get("https", "local");
-  static OTHER_HTTPS_LOCAL = Server.get("https", "other-local");
-  static HTTPS_PRIVATE = Server.get("https", "private");
-  static HTTPS_PUBLIC = Server.get("https", "public");
-  static WS_LOCAL = Server.get("ws", "local");
-  static WSS_LOCAL = Server.get("wss", "local");
-};
-
-// Resolves a URL relative to the current location, returning an absolute URL.
-//
-// `url` specifies the relative URL, e.g. "foo.html" or "http://foo.example".
-// `options`, if defined, should have the following shape:
-//
-//   {
-//     // Optional. Overrides the protocol of the returned URL.
-//     protocol,
-//
-//     // Optional. Overrides the port of the returned URL.
-//     port,
-//
-//     // Extra headers.
-//     headers,
-//
-//     // Extra search params.
-//     searchParams,
-//   }
-//
-function resolveUrl(url, options) {
-  const result = new URL(url, window.location);
-  if (options === undefined) {
-    return result;
-  }
-
-  const { port, protocol, headers, searchParams } = options;
-  if (port !== undefined) {
-    result.port = port;
-  }
-  if (protocol !== undefined) {
-    result.protocol = protocol;
-  }
-  if (headers !== undefined) {
-    const pipes = [];
-    for (key in headers) {
-      pipes.push(`header(${key},${headers[key]})`);
-    }
-    result.searchParams.append("pipe", pipes.join("|"));
-  }
-  if (searchParams !== undefined) {
-    for (key in searchParams) {
-      result.searchParams.append(key, searchParams[key]);
-    }
-  }
-
-  return result;
-}
-
-// Computes options to pass to `resolveUrl()` for a source document's URL.
-//
-// `server` identifies the server from which to load the document.
-// `treatAsPublic`, if set to true, specifies that the source document should
-// be artificially placed in the `public` address space using CSP.
-function sourceResolveOptions({ server, treatAsPublic }) {
-  const options = {...server};
-  if (treatAsPublic) {
-    options.headers = { "Content-Security-Policy": "treat-as-public-address" };
-  }
-  return options;
-}
-
-// Computes the URL of a preflight handler configured with the given options.
-//
-// `server` identifies the server from which to load the resource.
-// `behavior` specifies the behavior of the target server. It may contain:
-//   - `preflight`: The result of calling one of `PreflightBehavior`'s methods.
-//   - `response`: The result of calling one of `ResponseBehavior`'s methods.
-//   - `redirect`: A URL to which the target should redirect GET requests.
-function preflightUrl({ server, behavior }) {
-  assert_not_equals(server, undefined, 'server');
-  const options = {...server};
-  if (behavior) {
-    const { preflight, response, redirect } = behavior;
-    options.searchParams = {
-      ...preflight,
-      ...response,
-    };
-    if (redirect !== undefined) {
-      options.searchParams.redirect = redirect;
-    }
-  }
-
-  return resolveUrl("resources/preflight.py", options);
-}
-
-// Methods generate behavior specifications for how `resources/preflight.py`
-// should behave upon receiving a preflight request.
-const PreflightBehavior = {
-  // The preflight response should fail with a non-2xx code.
-  failure: () => ({}),
-
-  // The preflight response should be missing CORS headers.
-  // `uuid` should be a UUID that uniquely identifies the preflight request.
-  noCorsHeader: (uuid) => ({
-    "preflight-uuid": uuid,
-  }),
-
-  // The preflight response should be missing PNA headers.
-  // `uuid` should be a UUID that uniquely identifies the preflight request.
-  noPnaHeader: (uuid) => ({
-    "preflight-uuid": uuid,
-    "preflight-headers": "cors",
-  }),
-
-  // The preflight response should succeed.
-  // `uuid` should be a UUID that uniquely identifies the preflight request.
-  success: (uuid) => ({
-    "preflight-uuid": uuid,
-    "preflight-headers": "cors+pna",
-  }),
-
-  optionalSuccess: (uuid) => ({
-    "preflight-uuid": uuid,
-    "preflight-headers": "cors+pna",
-    "is-preflight-optional": true,
-  }),
-
-  // The preflight response should succeed and allow service-worker header.
-  // `uuid` should be a UUID that uniquely identifies the preflight request.
-  serviceWorkerSuccess: (uuid) => ({
-    "preflight-uuid": uuid,
-    "preflight-headers": "cors+pna+sw",
-  }),
-
-  // The preflight response should succeed only if it is the first preflight.
-  // `uuid` should be a UUID that uniquely identifies the preflight request.
-  singlePreflight: (uuid) => ({
-    "preflight-uuid": uuid,
-    "preflight-headers": "cors+pna",
-    "expect-single-preflight": true,
-  }),
-
-  // The preflight response should succeed and allow origins and headers for
-  // navigations.
-  navigation: (uuid) => ({
-    "preflight-uuid": uuid,
-    "preflight-headers": "navigation",
-  }),
-};
-
-// Methods generate behavior specifications for how `resources/preflight.py`
-// should behave upon receiving a regular (non-preflight) request.
-const ResponseBehavior = {
-  // The response should succeed without CORS headers.
-  default: () => ({}),
-
-  // The response should succeed with CORS headers.
-  allowCrossOrigin: () => ({ "final-headers": "cors" }),
-};
-
-const FetchTestResult = {
-  SUCCESS: {
-    ok: true,
-    body: "success",
-  },
-  OPAQUE: {
-    ok: false,
-    type: "opaque",
-    body: "",
-  },
-  FAILURE: {
-    error: "TypeError: Failed to fetch",
-  },
-};
-
-// Runs a fetch test. Tries to fetch a given subresource from a given document.
-//
-// Main argument shape:
-//
-//   {
-//     // Optional. Passed to `sourceResolveOptions()`.
-//     source,
-//
-//     // Optional. Passed to `preflightUrl()`.
-//     target,
-//
-//     // Optional. Passed to `fetch()`.
-//     fetchOptions,
-//
-//     // Required. One of the values in `FetchTestResult`.
-//     expected,
-//   }
-//
-async function fetchTest(t, { source, target, fetchOptions, expected }) {
-  const sourceUrl =
-      resolveUrl("resources/fetcher.html", sourceResolveOptions(source));
-
-  const targetUrl = preflightUrl(target);
-
-  const iframe = await appendIframe(t, document, sourceUrl);
-  const reply = futureMessage({ source: iframe.contentWindow });
-
-  const message = {
-    url: targetUrl.href,
-    options: fetchOptions,
-  };
-  iframe.contentWindow.postMessage(message, "*");
-
-  const { error, ok, type, body } = await reply;
-
-  assert_equals(error, expected.error, "error");
-
-  assert_equals(ok, expected.ok, "response ok");
-  assert_equals(body, expected.body, "response body");
-
-  if (expected.type !== undefined) {
-    assert_equals(type, expected.type, "response type");
-  }
-}
-
-// Similar to `fetchTest`, but replaced iframes with fenced frames.
-async function fencedFrameFetchTest(t, { source, target, fetchOptions, expected }) {
-  const fetcher_url =
-      resolveUrl("resources/fenced-frame-fetcher.https.html", sourceResolveOptions(source));
-
-  const target_url = preflightUrl(target);
-  target_url.searchParams.set("is-loaded-in-fenced-frame", true);
-
-  fetcher_url.searchParams.set("mode", fetchOptions.mode);
-  fetcher_url.searchParams.set("method", fetchOptions.method);
-  fetcher_url.searchParams.set("url", target_url);
-
-  const error_token = token();
-  const ok_token = token();
-  const body_token = token();
-  const type_token = token();
-  const source_url = generateURL(fetcher_url, [error_token, ok_token, body_token, type_token]);
-
-  const urn = await generateURNFromFledge(source_url, []);
-  attachFencedFrame(urn);
-
-  const error = await nextValueFromServer(error_token);
-  const ok = await nextValueFromServer(ok_token);
-  const body = await nextValueFromServer(body_token);
-  const type = await nextValueFromServer(type_token);
-
-  assert_equals(error, expected.error || "" , "error");
-  assert_equals(body, expected.body || "", "response body");
-  assert_equals(ok, expected.ok !== undefined ? expected.ok.toString() : "", "response ok");
-  if (expected.type !== undefined) {
-    assert_equals(type, expected.type, "response type");
-  }
-}
-
-const XhrTestResult = {
-  SUCCESS: {
-    loaded: true,
-    status: 200,
-    body: "success",
-  },
-  FAILURE: {
-    loaded: false,
-    status: 0,
-  },
-};
-
-// Runs an XHR test. Tries to fetch a given subresource from a given document.
-//
-// Main argument shape:
-//
-//   {
-//     // Optional. Passed to `sourceResolveOptions()`.
-//     source,
-//
-//     // Optional. Passed to `preflightUrl()`.
-//     target,
-//
-//     // Optional. Method to use when sending the request. Defaults to "GET".
-//     method,
-//
-//     // Required. One of the values in `XhrTestResult`.
-//     expected,
-//   }
-//
-async function xhrTest(t, { source, target, method, expected }) {
-  const sourceUrl =
-      resolveUrl("resources/xhr-sender.html", sourceResolveOptions(source));
-
-  const targetUrl = preflightUrl(target);
-
-  const iframe = await appendIframe(t, document, sourceUrl);
-  const reply = futureMessage();
-
-  const message = {
-    url: targetUrl.href,
-    method: method,
-  };
-  iframe.contentWindow.postMessage(message, "*");
-
-  const { loaded, status, body } = await reply;
-
-  assert_equals(loaded, expected.loaded, "response loaded");
-  assert_equals(status, expected.status, "response status");
-  assert_equals(body, expected.body, "response body");
-}
-
-const FrameTestResult = {
-  SUCCESS: "loaded",
-  FAILURE: "timeout",
-};
-
-async function iframeTest(t, { source, target, expected }) {
-  // Allows running tests in parallel.
-  const uuid = token();
-
-  const targetUrl = preflightUrl(target);
-  targetUrl.searchParams.set("file", "iframed.html");
-  targetUrl.searchParams.set("iframe-uuid", uuid);
-  targetUrl.searchParams.set(
-    "file-if-no-preflight-received",
-    "iframed-no-preflight-received.html",
-  );
-
-  const sourceUrl =
-      resolveUrl("resources/iframer.html", sourceResolveOptions(source));
-  sourceUrl.searchParams.set("url", targetUrl);
-
-  const messagePromise = futureMessage({
-    filter: (data) => data.uuid === uuid,
-  });
-  const iframe = await appendIframe(t, document, sourceUrl);
-
-  // The grandchild frame posts a message iff it loads successfully.
-  // There exists no interoperable way to check whether an iframe failed to
-  // load, so we use a timeout.
-  // See: https://github.com/whatwg/html/issues/125
-  const result = await Promise.race([
-      messagePromise.then((data) => data.message),
-      new Promise((resolve) => {
-        t.step_timeout(() => resolve("timeout"), 2000 /* ms */);
-      }),
-  ]);
-
-  assert_equals(result, expected);
-}
-
-const NavigationTestResult = {
-  SUCCESS: "success",
-  FAILURE: "timeout",
-};
-
-async function windowOpenTest(t, { source, target, expected }) {
-  const targetUrl = preflightUrl(target);
-  targetUrl.searchParams.set("file", "openee.html");
-  targetUrl.searchParams.set(
-    "file-if-no-preflight-received",
-    "no-preflight-received.html",
-  );
-
-  const sourceUrl =
-      resolveUrl("resources/opener.html", sourceResolveOptions(source));
-  sourceUrl.searchParams.set("url", targetUrl);
-
-  const iframe = await appendIframe(t, document, sourceUrl);
-  const reply = futureMessage({ source: iframe.contentWindow });
-
-  iframe.contentWindow.postMessage({ url: targetUrl.href }, "*");
-
-  const result = await Promise.race([
-      reply,
-      new Promise((resolve) => {
-        t.step_timeout(() => resolve("timeout"), 10000 /* ms */);
-      }),
-  ]);
-
-  assert_equals(result, expected);
-}
-
-async function windowOpenExistingTest(t, { source, target, expected }) {
-  const targetUrl = preflightUrl(target);
-  targetUrl.searchParams.set("file", "openee.html");
-  targetUrl.searchParams.set(
-    "file-if-no-preflight-received",
-    "no-preflight-received.html",
-  );
-
-  const sourceUrl = resolveUrl(
-      'resources/open-to-existing-window.html', sourceResolveOptions(source));
-  sourceUrl.searchParams.set("url", targetUrl);
-  sourceUrl.searchParams.set("token", token());
-
-  const iframe = await appendIframe(t, document, sourceUrl);
-  const reply = futureMessage({ source: iframe.contentWindow });
-
-  iframe.contentWindow.postMessage({ url: targetUrl.href }, "*");
-
-  const result = await Promise.race([
-      reply,
-      new Promise((resolve) => {
-        t.step_timeout(() => resolve("timeout"), 10000 /* ms */);
-      }),
-  ]);
-
-  assert_equals(result, expected);
-}
-
-async function anchorTest(t, { source, target, expected }) {
-  const targetUrl = preflightUrl(target);
-  targetUrl.searchParams.set("file", "openee.html");
-  targetUrl.searchParams.set(
-    "file-if-no-preflight-received",
-    "no-preflight-received.html",
-  );
-
-  const sourceUrl =
-      resolveUrl("resources/anchor.html", sourceResolveOptions(source));
-  sourceUrl.searchParams.set("url", targetUrl);
-
-  const iframe = await appendIframe(t, document, sourceUrl);
-  const reply = futureMessage({ source: iframe.contentWindow });
-
-  iframe.contentWindow.postMessage({ url: targetUrl.href }, "*");
-
-  const result = await Promise.race([
-      reply,
-      new Promise((resolve) => {
-        t.step_timeout(() => resolve("timeout"), 10000 /* ms */);
-      }),
-  ]);
-
-  assert_equals(result, expected);
-}
-
-// Similar to `iframeTest`, but replaced iframes with fenced frames.
-async function fencedFrameTest(t, { source, target, expected }) {
-  // Allows running tests in parallel.
-  const target_url = preflightUrl(target);
-  target_url.searchParams.set("file", "fenced-frame-private-network-access-target.https.html");
-  target_url.searchParams.set("is-loaded-in-fenced-frame", true);
-
-  const frame_loaded_key = token();
-  const child_frame_target = generateURL(target_url, [frame_loaded_key]);
-
-  const source_url =
-      resolveUrl("resources/fenced-frame-private-network-access.https.html", sourceResolveOptions(source));
-  source_url.searchParams.set("fenced_frame_url", child_frame_target);
-
-  const urn = await generateURNFromFledge(source_url, []);
-  attachFencedFrame(urn);
-
-  // The grandchild fenced frame writes a value to the server iff it loads
-  // successfully.
-  const result = (expected == FrameTestResult.SUCCESS) ?
-    await nextValueFromServer(frame_loaded_key) :
-    await Promise.race([
-      nextValueFromServer(frame_loaded_key),
-      new Promise((resolve) => {
-        t.step_timeout(() => resolve("timeout"), 10000 /* ms */);
-      }),
-    ]);
-
-  assert_equals(result, expected);
-}
-
-const iframeGrandparentTest = ({
-  name,
-  grandparentServer,
-  child,
-  grandchild,
-  expected,
-}) => promise_test_parallel(async (t) => {
-  // Allows running tests in parallel.
-  const grandparentUuid = token();
-  const childUuid = token();
-  const grandchildUuid = token();
-
-  const grandparentUrl =
-      resolveUrl("resources/executor.html", grandparentServer);
-  grandparentUrl.searchParams.set("executor-uuid", grandparentUuid);
-
-  const childUrl = preflightUrl(child);
-  childUrl.searchParams.set("file", "executor.html");
-  childUrl.searchParams.set("executor-uuid", childUuid);
-
-  const grandchildUrl = preflightUrl(grandchild);
-  grandchildUrl.searchParams.set("file", "iframed.html");
-  grandchildUrl.searchParams.set("iframe-uuid", grandchildUuid);
-
-  const iframe = await appendIframe(t, document, grandparentUrl);
-
-  const addChild = (url) => new Promise((resolve) => {
-    const child = document.createElement("iframe");
-    child.src = url;
-    child.addEventListener("load", () => resolve(), { once: true });
-    document.body.appendChild(child);
-  });
-
-  const grandparentCtx = new RemoteContext(grandparentUuid);
-  await grandparentCtx.execute_script(addChild, [childUrl]);
-
-  // Add a blank grandchild frame inside the child.
-  // Apply a timeout to this step so that failures at this step do not block the
-  // execution of other tests.
-  const childCtx = new RemoteContext(childUuid);
-  await Promise.race([
-      childCtx.execute_script(addChild, ["about:blank"]),
-      new Promise((resolve, reject) => t.step_timeout(
-          () => reject("timeout adding grandchild"),
-          2000 /* ms */
-      )),
-  ]);
-
-  const messagePromise = futureMessage({
-    filter: (data) => data.uuid === grandchildUuid,
-  });
-  await grandparentCtx.execute_script((url) => {
-    const child = window.frames[0];
-    const grandchild = child.frames[0];
-    grandchild.location = url;
-  }, [grandchildUrl]);
-
-  // The great-grandchild frame posts a message iff it loads successfully.
-  // There exists no interoperable way to check whether an iframe failed to
-  // load, so we use a timeout.
-  // See: https://github.com/whatwg/html/issues/125
-  const result = await Promise.race([
-      messagePromise.then((data) => data.message),
-      new Promise((resolve) => {
-        t.step_timeout(() => resolve("timeout"), 2000 /* ms */);
-      }),
-  ]);
-
-  assert_equals(result, expected);
-}, name);
-
-const WebsocketTestResult = {
-  SUCCESS: "open",
-
-  // The code is a best guess. It is not yet entirely specified, so it may need
-  // to be changed in the future based on implementation experience.
-  FAILURE: "close: code 1006",
-};
-
-// Runs a websocket test. Attempts to open a websocket from `source` (in an
-// iframe) to `target`, then checks that the result is as `expected`.
-//
-// Argument shape:
-//
-// {
-//   // Required. Passed to `sourceResolveOptions()`.
-//   source,
-//
-//   // Required.
-//   target: {
-//     // Required. Target server.
-//     server,
-//   }
-//
-//   // Required. Should be one of the values in `WebsocketTestResult`.
-//   expected,
-// }
-//
-async function websocketTest(t, { source, target, expected }) {
-  const sourceUrl =
-      resolveUrl("resources/socket-opener.html", sourceResolveOptions(source));
-
-  const targetUrl = resolveUrl("/echo", target.server);
-
-  const iframe = await appendIframe(t, document, sourceUrl);
-
-  const reply = futureMessage();
-  iframe.contentWindow.postMessage(targetUrl.href, "*");
-
-  assert_equals(await reply, expected);
-}
-
-const WorkerScriptTestResult = {
-  SUCCESS: { loaded: true },
-  FAILURE: { error: "unknown error" },
-};
-
-function workerScriptUrl(target) {
-  const url = preflightUrl(target);
-
-  url.searchParams.append("body", "postMessage({ loaded: true })")
-  url.searchParams.append("mime-type", "application/javascript")
-
-  return url;
-}
-
-async function workerScriptTest(t, { source, target, expected }) {
-  const sourceUrl =
-      resolveUrl("resources/worker-fetcher.html", sourceResolveOptions(source));
-
-  const targetUrl = workerScriptUrl(target);
-
-  const iframe = await appendIframe(t, document, sourceUrl);
-  const reply = futureMessage();
-
-  iframe.contentWindow.postMessage({ url: targetUrl.href }, "*");
-
-  const { error, loaded } = await reply;
-
-  assert_equals(error, expected.error, "worker error");
-  assert_equals(loaded, expected.loaded, "response loaded");
-}
-
-async function nestedWorkerScriptTest(t, { source, target, expected }) {
-  const targetUrl = workerScriptUrl(target);
-
-  const sourceUrl = resolveUrl(
-      "resources/worker-fetcher.js", sourceResolveOptions(source));
-  sourceUrl.searchParams.append("url", targetUrl);
-
-  // Iframe must be same-origin with the parent worker.
-  const iframeUrl = new URL("worker-fetcher.html", sourceUrl);
-
-  const iframe = await appendIframe(t, document, iframeUrl);
-  const reply = futureMessage();
-
-  iframe.contentWindow.postMessage({ url: sourceUrl.href }, "*");
-
-  const { error, loaded } = await reply;
-
-  assert_equals(error, expected.error, "worker error");
-  assert_equals(loaded, expected.loaded, "response loaded");
-}
-
-async function sharedWorkerScriptTest(t, { source, target, expected }) {
-  const sourceUrl = resolveUrl("resources/shared-worker-fetcher.html",
-                               sourceResolveOptions(source));
-  const targetUrl = preflightUrl(target);
-  targetUrl.searchParams.append(
-      "body", "onconnect = (e) => e.ports[0].postMessage({ loaded: true })")
-  targetUrl.searchParams.append("mime-type", "application/javascript")
-
-  const iframe = await appendIframe(t, document, sourceUrl);
-  const reply = futureMessage();
-
-  iframe.contentWindow.postMessage({ url: targetUrl.href }, "*");
-
-  const { error, loaded } = await reply;
-
-  assert_equals(error, expected.error, "worker error");
-  assert_equals(loaded, expected.loaded, "response loaded");
-}
-
-// Results that may be expected in tests.
-const WorkerFetchTestResult = {
-  SUCCESS: { status: 200, body: "success" },
-  FAILURE: { error: "TypeError" },
-};
-
-async function workerFetchTest(t, { source, target, expected }) {
-  const targetUrl = preflightUrl(target);
-
-  const sourceUrl =
-      resolveUrl("resources/fetcher.js", sourceResolveOptions(source));
-  sourceUrl.searchParams.append("url", targetUrl.href);
-
-  const fetcherUrl = new URL("worker-fetcher.html", sourceUrl);
-
-  const reply = futureMessage();
-  const iframe = await appendIframe(t, document, fetcherUrl);
-
-  iframe.contentWindow.postMessage({ url: sourceUrl.href }, "*");
-
-  const { error, status, body } = await reply;
-  assert_equals(error, expected.error, "fetch error");
-  assert_equals(status, expected.status, "response status");
-  assert_equals(body, expected.body, "response body");
-}
-
-async function workerBlobFetchTest(t, { source, target, expected }) {
-  const targetUrl = preflightUrl(target);
-
-  const fetcherUrl = resolveUrl(
-      'resources/worker-blob-fetcher.html', sourceResolveOptions(source));
-
-  const reply = futureMessage();
-  const iframe = await appendIframe(t, document, fetcherUrl);
-
-  iframe.contentWindow.postMessage({ url: targetUrl.href }, "*");
-
-  const { error, status, body } = await reply;
-  assert_equals(error, expected.error, "fetch error");
-  assert_equals(status, expected.status, "response status");
-  assert_equals(body, expected.body, "response body");
-}
-
-async function sharedWorkerFetchTest(t, { source, target, expected }) {
-  const targetUrl = preflightUrl(target);
-
-  const sourceUrl =
-      resolveUrl("resources/shared-fetcher.js", sourceResolveOptions(source));
-  sourceUrl.searchParams.append("url", targetUrl.href);
-
-  const fetcherUrl = new URL("shared-worker-fetcher.html", sourceUrl);
-
-  const reply = futureMessage();
-  const iframe = await appendIframe(t, document, fetcherUrl);
-
-  iframe.contentWindow.postMessage({ url: sourceUrl.href }, "*");
-
-  const { error, status, body } = await reply;
-  assert_equals(error, expected.error, "fetch error");
-  assert_equals(status, expected.status, "response status");
-  assert_equals(body, expected.body, "response body");
-}
-
-async function sharedWorkerBlobFetchTest(t, { source, target, expected }) {
-  const targetUrl = preflightUrl(target);
-
-  const fetcherUrl = resolveUrl(
-      'resources/shared-worker-blob-fetcher.html',
-      sourceResolveOptions(source));
-
-  const reply = futureMessage();
-  const iframe = await appendIframe(t, document, fetcherUrl);
-
-  iframe.contentWindow.postMessage({ url: targetUrl.href }, "*");
-
-  const { error, status, body } = await reply;
-  assert_equals(error, expected.error, "fetch error");
-  assert_equals(status, expected.status, "response status");
-  assert_equals(body, expected.body, "response body");
-}
-
-async function makeServiceWorkerTest(t, { source, target, expected, fetch_document=false }) {
-  const bridgeUrl = resolveUrl(
-      "resources/service-worker-bridge.html",
-      sourceResolveOptions({ server: source.server }));
-
-  const scriptUrl = fetch_document?
-      resolveUrl("resources/service-worker-fetch-all.js", sourceResolveOptions(source)):
-      resolveUrl("resources/service-worker.js", sourceResolveOptions(source));
-
-  const realTargetUrl = preflightUrl(target);
-
-  // Fetch a URL within the service worker's scope, but tell it which URL to
-  // really fetch.
-  const targetUrl = new URL("service-worker-proxy", scriptUrl);
-  targetUrl.searchParams.append("proxied-url", realTargetUrl.href);
-
-  const iframe = await appendIframe(t, document, bridgeUrl);
-
-  const request = (message) => {
-    const reply = futureMessage();
-    iframe.contentWindow.postMessage(message, "*");
-    return reply;
-  };
-
-  {
-    const { error, loaded } = await request({
-      action: "register",
-      url: scriptUrl.href,
-    });
-
-    assert_equals(error, undefined, "register error");
-    assert_true(loaded, "response loaded");
-  }
-
-  try {
-    const { controlled, numControllerChanges } = await request({
-      action: "wait",
-      numControllerChanges: 1,
-    });
-
-    assert_equals(numControllerChanges, 1, "controller change");
-    assert_true(controlled, "bridge script is controlled");
-
-    const { error, ok, body } = await request({
-      action: "fetch",
-      url: targetUrl.href,
-    });
-
-    assert_equals(error, expected.error, "fetch error");
-    assert_equals(ok, expected.ok, "response ok");
-    assert_equals(body, expected.body, "response body");
-  } finally {
-    // Always unregister the service worker.
-    const { error, unregistered } = await request({
-      action: "unregister",
-      scope: new URL("./", scriptUrl).href,
-    });
-
-    assert_equals(error, undefined, "unregister error");
-    assert_true(unregistered, "unregistered");
-  }
-}
diff --git a/tests/wpt/tests/fetch/private-network-access/resources/worker-blob-fetcher.html b/tests/wpt/tests/fetch/private-network-access/resources/worker-blob-fetcher.html
deleted file mode 100644
index 5a50271e11b..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/resources/worker-blob-fetcher.html
+++ /dev/null
@@ -1,45 +0,0 @@
-<!DOCTYPE html>
-<meta charset="utf-8">
-<title>Worker Blob Fetcher</title>
-<script>
-  window.addEventListener("message", function (evt) {
-    const { url } = evt.data;
-
-    const workerScriptContent = `
-      async function doFetch(url) {
-        const response = await fetch(url);
-        const body = await response.text();
-        return {
-          status: response.status,
-          body,
-        };
-      }
-
-      async function fetchAndPost(url) {
-        try {
-          const message = await doFetch(url);
-          self.postMessage(message);
-        } catch(e) {
-          self.postMessage({ error: e.name });
-        }
-      }
-
-      fetchAndPost("${url}");
-    `;
-    const blob =
-        new Blob([workerScriptContent], {type: 'application/javascript'});
-    const workerScriptUrl = URL.createObjectURL(blob);
-
-    const worker = new Worker(workerScriptUrl);
-
-    URL.revokeObjectURL(workerScriptUrl);
-
-    worker.addEventListener("message", (evt) => {
-      parent.postMessage(evt.data, "*");
-    });
-
-    worker.addEventListener("error", (evt) => {
-      parent.postMessage({ error: evt.message || "unknown error" }, "*");
-    });
-  });
-</script>
diff --git a/tests/wpt/tests/fetch/private-network-access/resources/worker-fetcher.html b/tests/wpt/tests/fetch/private-network-access/resources/worker-fetcher.html
deleted file mode 100644
index bd155a532bd..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/resources/worker-fetcher.html
+++ /dev/null
@@ -1,18 +0,0 @@
-<!DOCTYPE html>
-<meta charset="utf-8">
-<title>Worker Fetcher</title>
-<script>
-  window.addEventListener("message", function (evt) {
-    let { url } = evt.data;
-
-    const worker = new Worker(url);
-
-    worker.addEventListener("message", (evt) => {
-      parent.postMessage(evt.data, "*");
-    });
-
-    worker.addEventListener("error", (evt) => {
-      parent.postMessage({ error: evt.message || "unknown error" }, "*");
-    });
-  });
-</script>
diff --git a/tests/wpt/tests/fetch/private-network-access/resources/worker-fetcher.js b/tests/wpt/tests/fetch/private-network-access/resources/worker-fetcher.js
deleted file mode 100644
index aab49afe6f4..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/resources/worker-fetcher.js
+++ /dev/null
@@ -1,11 +0,0 @@
-const url = new URL(self.location).searchParams.get("url");
-const worker = new Worker(url);
-
-// Relay messages from the worker to the parent frame.
-worker.addEventListener("message", (evt) => {
-  self.postMessage(evt.data);
-});
-
-worker.addEventListener("error", (evt) => {
-  self.postMessage({ error: evt.message || "unknown error" });
-});
diff --git a/tests/wpt/tests/fetch/private-network-access/resources/xhr-sender.html b/tests/wpt/tests/fetch/private-network-access/resources/xhr-sender.html
deleted file mode 100644
index b131fa41f9a..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/resources/xhr-sender.html
+++ /dev/null
@@ -1,33 +0,0 @@
-<!DOCTYPE html>
-<meta charset="utf-8">
-<title>XHR Sender</title>
-<script>
-  window.addEventListener("message", function (event) {
-    let { url, method } = event.data;
-    if (!method) {
-      method = "GET";
-    }
-
-    const xhr = new XMLHttpRequest;
-
-    xhr.addEventListener("load", (evt) => {
-      const message = {
-        loaded: true,
-        status: xhr.status,
-        body: xhr.responseText,
-      };
-      parent.postMessage(message, "*");
-    });
-
-    xhr.addEventListener("error", (evt) => {
-      const message = {
-        loaded: false,
-        status: xhr.status,
-      };
-      parent.postMessage(message, "*");
-    });
-
-    xhr.open(method, url);
-    xhr.send();
-  });
-</script>
diff --git a/tests/wpt/tests/fetch/private-network-access/service-worker-background-fetch.tentative.https.window.js b/tests/wpt/tests/fetch/private-network-access/service-worker-background-fetch.tentative.https.window.js
deleted file mode 100644
index 8d1028cc5ee..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/service-worker-background-fetch.tentative.https.window.js
+++ /dev/null
@@ -1,143 +0,0 @@
-// META: script=/common/utils.js
-// META: script=resources/support.sub.js
-// META: timeout=long
-//
-// Spec: https://wicg.github.io/private-network-access/#integration-fetch
-// Spec: https://wicg.github.io/background-fetch/
-//
-// These tests check that background fetches from within `ServiceWorker` scripts
-// are not subject to Private Network Access checks.
-
-// Results that may be expected in tests.
-const TestResult = {
-  SUCCESS: { ok: true, body: "success", result: "success", failureReason: "" },
-};
-
-async function makeTest(t, { source, target, expected }) {
-  const scriptUrl =
-      resolveUrl("resources/service-worker.js", sourceResolveOptions(source));
-
-  const bridgeUrl = new URL("service-worker-bridge.html", scriptUrl);
-
-  const targetUrl = preflightUrl(target);
-
-  const iframe = await appendIframe(t, document, bridgeUrl);
-
-  const request = (message) => {
-    const reply = futureMessage();
-    iframe.contentWindow.postMessage(message, "*");
-    return reply;
-  };
-
-  {
-    const { error, loaded } = await request({
-      action: "register",
-      url: scriptUrl.href,
-    });
-
-    assert_equals(error, undefined, "register error");
-    assert_true(loaded, "response loaded");
-  }
-
-  {
-    const { error, state } = await request({
-      action: "set-permission",
-      name: "background-fetch",
-      state: "granted",
-    });
-
-    assert_equals(error, undefined, "set permission error");
-    assert_equals(state, "granted", "permission state");
-  }
-
-  {
-    const { error, result, failureReason, ok, body } = await request({
-      action: "background-fetch",
-      url: targetUrl.href,
-    });
-
-    assert_equals(error, expected.error, "error");
-    assert_equals(failureReason, expected.failureReason, "fetch failure reason");
-    assert_equals(result, expected.result, "fetch result");
-    assert_equals(ok, expected.ok, "response ok");
-    assert_equals(body, expected.body, "response body");
-  }
-}
-
-promise_test(t => makeTest(t, {
-  source: { server: Server.HTTPS_LOCAL },
-  target: { server: Server.HTTPS_LOCAL },
-  expected: TestResult.SUCCESS,
-}), "local to local: success.");
-
-promise_test(t => makeTest(t, {
-  source: { server: Server.HTTPS_PRIVATE },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: TestResult.SUCCESS,
-}), "private to local: success.");
-
-promise_test(t => makeTest(t, {
-  source: { server: Server.HTTPS_PRIVATE },
-  target: { server: Server.HTTPS_PRIVATE },
-  expected: TestResult.SUCCESS,
-}), "private to private: success.");
-
-promise_test(t => makeTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: TestResult.SUCCESS,
-}), "public to local: success.");
-
-promise_test(t => makeTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: TestResult.SUCCESS,
-}), "public to private: success.");
-
-promise_test(t => makeTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: { server: Server.HTTPS_PUBLIC },
-  expected: TestResult.SUCCESS,
-}), "public to public: success.");
-
-promise_test(t => makeTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: { server: Server.HTTPS_LOCAL },
-  expected: TestResult.SUCCESS,
-}), "treat-as-public to local: success.");
-
-promise_test(t => makeTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: TestResult.SUCCESS,
-}), "treat-as-public to private: success.");
-
-promise_test(t => makeTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTPS_PUBLIC,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: TestResult.SUCCESS,
-}), "treat-as-public to public: success.");
diff --git a/tests/wpt/tests/fetch/private-network-access/service-worker-fetch-document-treat-as-public.tentative.https.window.js b/tests/wpt/tests/fetch/private-network-access/service-worker-fetch-document-treat-as-public.tentative.https.window.js
deleted file mode 100644
index 6fc29ce4725..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/service-worker-fetch-document-treat-as-public.tentative.https.window.js
+++ /dev/null
@@ -1,101 +0,0 @@
-// META: script=/common/utils.js
-// META: script=resources/support.sub.js
-//
-// Spec: https://wicg.github.io/private-network-access/#integration-fetch
-//
-// These tests check that fetches from within `ServiceWorker` scripts are
-// subject to Private Network Access checks, just like fetches from within
-// documents.
-
-// Results that may be expected in tests.
-const TestResult = {
-    SUCCESS: { ok: true, body: "success" },
-    FAILURE: { error: "TypeError" },
-};
-
-promise_test(t => makeServiceWorkerTest(t, {
-    source: {
-      server: Server.HTTPS_LOCAL,
-      treatAsPublic: true,
-    },
-    target: {
-      server: Server.OTHER_HTTPS_LOCAL,
-      behavior: {
-        preflight: PreflightBehavior.failure(),
-        response: ResponseBehavior.allowCrossOrigin()
-      },
-    },
-    expected: TestResult.FAILURE,
-    fetch_document: true,
-}), "treat-as-public to local: failed preflight.");
-
-promise_test(t => makeServiceWorkerTest(t, {
-    source: {
-      server: Server.HTTPS_LOCAL,
-      treatAsPublic: true,
-    },
-    target: {
-      server: Server.OTHER_HTTPS_LOCAL,
-      behavior: {
-        preflight: PreflightBehavior.success(token()),
-        response: ResponseBehavior.allowCrossOrigin(),
-      },
-    },
-    expected: TestResult.SUCCESS,
-    fetch_document: true,
-}), "treat-as-public to local: success.");
-
-promise_test(t => makeServiceWorkerTest(t, {
-    source: {
-      server: Server.HTTPS_LOCAL,
-      treatAsPublic: true,
-    },
-    target: { server: Server.HTTPS_LOCAL },
-    expected: TestResult.SUCCESS,
-    fetch_document: true,
-}), "treat-as-public to local (same-origin): no preflight required.");
-
-promise_test(t => makeServiceWorkerTest(t, {
-    source: {
-      server: Server.HTTPS_LOCAL,
-      treatAsPublic: true,
-    },
-    target: {
-      server: Server.HTTPS_PRIVATE,
-      behavior: {
-        preflight: PreflightBehavior.failure(),
-        response: ResponseBehavior.allowCrossOrigin()
-      },
-    },
-    expected: TestResult.FAILURE,
-    fetch_document: true,
-}), "treat-as-public to private: failed preflight.");
-
-promise_test(t => makeServiceWorkerTest(t, {
-    source: {
-      server: Server.HTTPS_LOCAL,
-      treatAsPublic: true,
-    },
-    target: {
-      server: Server.HTTPS_PRIVATE,
-      behavior: {
-        preflight: PreflightBehavior.success(token()),
-        response: ResponseBehavior.allowCrossOrigin(),
-      },
-    },
-    expected: TestResult.SUCCESS,
-    fetch_document: true,
-}), "treat-as-public to private: success.");
-
-promise_test(t => makeServiceWorkerTest(t, {
-    source: {
-      server: Server.HTTPS_LOCAL,
-      treatAsPublic: true,
-    },
-    target: {
-      server: Server.HTTPS_PUBLIC,
-      behavior: { response: ResponseBehavior.allowCrossOrigin() },
-    },
-    expected: TestResult.SUCCESS,
-    fetch_document: true,
-}), "treat-as-public to public: success.");
diff --git a/tests/wpt/tests/fetch/private-network-access/service-worker-fetch-document.tentative.https.window.js b/tests/wpt/tests/fetch/private-network-access/service-worker-fetch-document.tentative.https.window.js
deleted file mode 100644
index ec380555a80..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/service-worker-fetch-document.tentative.https.window.js
+++ /dev/null
@@ -1,114 +0,0 @@
-// META: script=/common/utils.js
-// META: script=resources/support.sub.js
-//
-// Spec: https://wicg.github.io/private-network-access/#integration-fetch
-//
-// These tests check that fetches from within `ServiceWorker` scripts are
-// subject to Private Network Access checks, just like fetches from within
-// documents.
-
-// Results that may be expected in tests.
-const TestResult = {
-    SUCCESS: { ok: true, body: "success" },
-    FAILURE: { error: "TypeError" },
-};
-
-promise_test(t => makeServiceWorkerTest(t, {
-  source: { server: Server.HTTPS_LOCAL },
-  target: { server: Server.HTTPS_LOCAL },
-  expected: TestResult.SUCCESS,
-  fetch_document: true,
-}), "local to local: success.");
-
-promise_test(t => makeServiceWorkerTest(t, {
-  source: { server: Server.HTTPS_PRIVATE },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.failure(),
-      response: ResponseBehavior.allowCrossOrigin()
-    },
-  },
-  expected: TestResult.FAILURE,
-  fetch_document: true,
-}), "private to local: failed preflight.");
-
-promise_test(t => makeServiceWorkerTest(t, {
-  source: { server: Server.HTTPS_PRIVATE },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: TestResult.SUCCESS,
-  fetch_document: true,
-}), "private to local: success.");
-
-promise_test(t => makeServiceWorkerTest(t, {
-  source: { server: Server.HTTPS_PRIVATE },
-  target: { server: Server.HTTPS_PRIVATE },
-  expected: TestResult.SUCCESS,
-  fetch_document: true,
-}), "private to private: success.");
-
-promise_test(t => makeServiceWorkerTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.failure(),
-      response: ResponseBehavior.allowCrossOrigin()
-    },
-  },
-  expected: TestResult.FAILURE,
-  fetch_document: true,
-}), "public to local: failed preflight.");
-
-promise_test(t => makeServiceWorkerTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: TestResult.SUCCESS,
-  fetch_document: true,
-}), "public to local: success.");
-
-promise_test(t => makeServiceWorkerTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: {
-      preflight: PreflightBehavior.failure(),
-      response: ResponseBehavior.allowCrossOrigin()
-    },
-  },
-  expected: TestResult.FAILURE,
-  fetch_document: true,
-}), "public to private: failed preflight.");
-
-promise_test(t => makeServiceWorkerTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: TestResult.SUCCESS,
-  fetch_document: true,
-}), "public to private: success.");
-
-promise_test(t => makeServiceWorkerTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: { server: Server.HTTPS_PUBLIC },
-  expected: TestResult.SUCCESS,
-  fetch_document: true,
-}), "public to public: success.");
-
diff --git a/tests/wpt/tests/fetch/private-network-access/service-worker-fetch.tentative.https.window.js b/tests/wpt/tests/fetch/private-network-access/service-worker-fetch.tentative.https.window.js
deleted file mode 100644
index 5fc5800ba04..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/service-worker-fetch.tentative.https.window.js
+++ /dev/null
@@ -1,188 +0,0 @@
-// META: script=/common/utils.js
-// META: script=resources/support.sub.js
-// META: script=/common/subset-tests.js
-// META: variant=?1-8
-// META: variant=?9-last
-//
-// Spec: https://wicg.github.io/private-network-access/#integration-fetch
-//
-// These tests check that fetches from within `ServiceWorker` scripts are
-// subject to Private Network Access checks, just like fetches from within
-// documents.
-
-// Results that may be expected in tests.
-const TestResult = {
-  SUCCESS: { ok: true, body: "success" },
-  FAILURE: { error: "TypeError" },
-};
-
-subsetTest(promise_test, t => makeServiceWorkerTest(t, {
-  source: { server: Server.HTTPS_LOCAL },
-  target: { server: Server.HTTPS_LOCAL },
-  expected: TestResult.SUCCESS,
-}), "local to local: success.");
-
-subsetTest(promise_test, t => makeServiceWorkerTest(t, {
-  source: { server: Server.HTTPS_PRIVATE },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.failure(),
-      response: ResponseBehavior.allowCrossOrigin()
-    },
-  },
-  expected: TestResult.FAILURE,
-}), "private to local: failed preflight.");
-
-subsetTest(promise_test, t => makeServiceWorkerTest(t, {
-  source: { server: Server.HTTPS_PRIVATE },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: TestResult.SUCCESS,
-}), "private to local: success.");
-
-subsetTest(promise_test, t => makeServiceWorkerTest(t, {
-  source: { server: Server.HTTPS_PRIVATE },
-  target: { server: Server.HTTPS_PRIVATE },
-  expected: TestResult.SUCCESS,
-}), "private to private: success.");
-
-subsetTest(promise_test, t => makeServiceWorkerTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.failure(),
-      response: ResponseBehavior.allowCrossOrigin()
-    },
-  },
-  expected: TestResult.FAILURE,
-}), "public to local: failed preflight.");
-
-subsetTest(promise_test, t => makeServiceWorkerTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: TestResult.SUCCESS,
-}), "public to local: success.");
-
-subsetTest(promise_test, t => makeServiceWorkerTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: {
-      preflight: PreflightBehavior.failure(),
-      response: ResponseBehavior.allowCrossOrigin()
-    },
-  },
-  expected: TestResult.FAILURE,
-}), "public to private: failed preflight.");
-
-subsetTest(promise_test, t => makeServiceWorkerTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: TestResult.SUCCESS,
-}), "public to private: success.");
-
-subsetTest(promise_test, t => makeServiceWorkerTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: { server: Server.HTTPS_PUBLIC },
-  expected: TestResult.SUCCESS,
-}), "public to public: success.");
-
-subsetTest(promise_test, t => makeServiceWorkerTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.OTHER_HTTPS_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.failure(),
-      response: ResponseBehavior.allowCrossOrigin()
-    },
-  },
-  expected: TestResult.FAILURE,
-}), "treat-as-public to local: failed preflight.");
-
-subsetTest(promise_test, t => makeServiceWorkerTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.OTHER_HTTPS_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: TestResult.SUCCESS,
-}), "treat-as-public to local: success.");
-
-subsetTest(promise_test, t => makeServiceWorkerTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: { server: Server.HTTPS_LOCAL },
-  expected: TestResult.SUCCESS,
-}), "treat-as-public to local (same-origin): no preflight required.");
-
-subsetTest(promise_test, t => makeServiceWorkerTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: {
-      preflight: PreflightBehavior.failure(),
-      response: ResponseBehavior.allowCrossOrigin()
-    },
-  },
-  expected: TestResult.FAILURE,
-}), "treat-as-public to private: failed preflight.");
-
-subsetTest(promise_test, t => makeServiceWorkerTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: TestResult.SUCCESS,
-}), "treat-as-public to private: success.");
-
-subsetTest(promise_test, t => makeServiceWorkerTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTPS_PUBLIC,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: TestResult.SUCCESS,
-}), "treat-as-public to public: success.");
diff --git a/tests/wpt/tests/fetch/private-network-access/service-worker-update.tentative.https.window.js b/tests/wpt/tests/fetch/private-network-access/service-worker-update.tentative.https.window.js
deleted file mode 100644
index 4882d235bb0..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/service-worker-update.tentative.https.window.js
+++ /dev/null
@@ -1,106 +0,0 @@
-// META: script=/common/utils.js
-// META: script=resources/support.sub.js
-//
-// Spec: https://wicg.github.io/private-network-access/#integration-fetch
-//
-// These tests check that `ServiceWorker` script update fetches are exempt from
-// Private Network Access checks because they are always same-origin and the
-// origin is potentially trustworthy. The client of the fetch, for PNA purposes,
-// is taken to be the previous script.
-//
-// The tests is carried out by instantiating a service worker from a resource
-// that carries the `Content-Security-Policy: treat-as-public-address` header,
-// such that the registration is placed in the public IP address space. When
-// the script is fetched for an update, the client is thus considered public,
-// yet the same-origin fetch observes that the server's IP endpoint is not
-// necessarily in the public IP address space.
-//
-// See also: worker.https.window.js
-
-// Results that may be expected in tests.
-const TestResult = {
-  SUCCESS: { updated: true },
-  FAILURE: { error: "TypeError" },
-};
-
-async function makeTest(t, { target, expected }) {
-  // The bridge must be same-origin with the service worker script.
-  const bridgeUrl = resolveUrl(
-      "resources/service-worker-bridge.html",
-      sourceResolveOptions({ server: target.server }));
-
-  const scriptUrl = preflightUrl(target);
-  scriptUrl.searchParams.append("treat-as-public-once", token());
-  scriptUrl.searchParams.append("mime-type", "application/javascript");
-  scriptUrl.searchParams.append("file", "service-worker.js");
-  scriptUrl.searchParams.append("random-js-prefix", true);
-
-  const iframe = await appendIframe(t, document, bridgeUrl);
-
-  const request = (message) => {
-    const reply = futureMessage();
-    iframe.contentWindow.postMessage(message, "*");
-    return reply;
-  };
-
-  {
-    const { error, loaded } = await request({
-      action: "register",
-      url: scriptUrl.href,
-    });
-
-    assert_equals(error, undefined, "register error");
-    assert_true(loaded, "response loaded");
-  }
-
-  try {
-    let { controlled, numControllerChanges } = await request({
-      action: "wait",
-      numControllerChanges: 1,
-    });
-
-    assert_equals(numControllerChanges, 1, "controller change");
-    assert_true(controlled, "bridge script is controlled");
-
-    const { error, updated } = await request({ action: "update" });
-
-    assert_equals(error, expected.error, "update error");
-    assert_equals(updated, expected.updated, "registration updated");
-
-    // Stop here if we do not expect the update to succeed.
-    if (!expected.updated) {
-      return;
-    }
-
-    ({ controlled, numControllerChanges } = await request({
-      action: "wait",
-      numControllerChanges: 2,
-    }));
-
-    assert_equals(numControllerChanges, 2, "controller change");
-    assert_true(controlled, "bridge script still controlled");
-  } finally {
-    const { error, unregistered } = await request({
-      action: "unregister",
-      scope: new URL("./", scriptUrl).href,
-    });
-
-    assert_equals(error, undefined, "unregister error");
-    assert_true(unregistered, "unregistered");
-  }
-}
-
-promise_test(t => makeTest(t, {
-  target: { server: Server.HTTPS_LOCAL },
-  expected: TestResult.SUCCESS,
-}), "update public to local: success.");
-
-promise_test(t => makeTest(t, {
-  target: { server: Server.HTTPS_PRIVATE },
-  expected: TestResult.SUCCESS,
-}), "update public to private: success.");
-
-promise_test(t => makeTest(t, {
-  target: { server: Server.HTTPS_PUBLIC },
-  expected: TestResult.SUCCESS,
-}), "update public to public: success.");
diff --git a/tests/wpt/tests/fetch/private-network-access/service-worker.tentative.https.window.js b/tests/wpt/tests/fetch/private-network-access/service-worker.tentative.https.window.js
deleted file mode 100644
index 046f662a127..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/service-worker.tentative.https.window.js
+++ /dev/null
@@ -1,84 +0,0 @@
-// META: script=/common/utils.js
-// META: script=resources/support.sub.js
-//
-// Spec: https://wicg.github.io/private-network-access/#integration-fetch
-//
-// These tests check that initial `ServiceWorker` script fetches are exempt from
-// Private Network Access checks because they are always same-origin and the
-// origin is potentially trustworthy.
-//
-// See also: worker.https.window.js
-
-// Results that may be expected in tests.
-const TestResult = {
-  SUCCESS: {
-    register: { loaded: true },
-    unregister: { unregistered: true },
-  },
-  FAILURE: {
-    register: { error: "TypeError" },
-    unregister: { unregistered: false, error: "no registration" },
-  },
-};
-
-async function makeTest(t, { source, target, expected }) {
-  const sourceUrl = resolveUrl("resources/service-worker-bridge.html",
-                               sourceResolveOptions(source));
-
-  const targetUrl = preflightUrl(target);
-  targetUrl.searchParams.append("body", "undefined");
-  targetUrl.searchParams.append("mime-type", "application/javascript");
-
-  const scope = resolveUrl(`resources/${token()}`, {...target.server}).href;
-
-  const iframe = await appendIframe(t, document, sourceUrl);
-
-  {
-    const reply = futureMessage();
-    const message = {
-      action: "register",
-      url: targetUrl.href,
-      options: { scope },
-    };
-    iframe.contentWindow.postMessage(message, "*");
-
-    const { error, loaded } = await reply;
-
-    assert_equals(error, expected.register.error, "register error");
-    assert_equals(loaded, expected.register.loaded, "response loaded");
-  }
-
-  {
-    const reply = futureMessage();
-    iframe.contentWindow.postMessage({ action: "unregister", scope }, "*");
-
-    const { error, unregistered } = await reply;
-    assert_equals(error, expected.unregister.error, "unregister error");
-    assert_equals(
-        unregistered, expected.unregister.unregistered, "worker unregistered");
-  }
-}
-
-promise_test(t => makeTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: { server: Server.HTTPS_LOCAL },
-  expected: TestResult.SUCCESS,
-}), "treat-as-public to local: success.");
-
-promise_test(t => makeTest(t, {
-  source: {
-    server: Server.HTTPS_PRIVATE,
-    treatAsPublic: true,
-  },
-  target: { server: Server.HTTPS_PRIVATE },
-  expected: TestResult.SUCCESS,
-}), "treat-as-public to private: success.");
-
-promise_test(t => makeTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: { server: Server.HTTPS_PUBLIC },
-  expected: TestResult.SUCCESS,
-}), "public to public: success.");
diff --git a/tests/wpt/tests/fetch/private-network-access/shared-worker-blob-fetch.tentative.https.window.js b/tests/wpt/tests/fetch/private-network-access/shared-worker-blob-fetch.tentative.https.window.js
deleted file mode 100644
index 269abb7edc4..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/shared-worker-blob-fetch.tentative.https.window.js
+++ /dev/null
@@ -1,168 +0,0 @@
-// META: script=/common/utils.js
-// META: script=resources/support.sub.js
-//
-// Spec: https://wicg.github.io/private-network-access/#integration-fetch
-//
-// These tests check that fetches from within `SharedWorker` scripts that are
-// loaded from blob URLs are subject to Private Network Access checks, just like
-// fetches from within documents.
-//
-// This file covers only those tests that must execute in a secure context.
-// Other tests are defined in: shared-worker-blob-fetch.window.js
-
-promise_test(t => sharedWorkerBlobFetchTest(t, {
-  source: { server: Server.HTTPS_LOCAL },
-  target: { server: Server.HTTPS_LOCAL },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "local to local: success.");
-
-promise_test(t => sharedWorkerBlobFetchTest(t, {
-  source: { server: Server.HTTPS_PRIVATE },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "private to local: failed preflight.");
-
-promise_test(t => sharedWorkerBlobFetchTest(t, {
-  source: { server: Server.HTTPS_PRIVATE },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "private to local: success.");
-
-promise_test(t => sharedWorkerBlobFetchTest(t, {
-  source: { server: Server.HTTPS_PRIVATE },
-  target: { server: Server.HTTPS_PRIVATE },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "private to private: success.");
-
-promise_test(t => sharedWorkerBlobFetchTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "public to local: failed preflight.");
-
-promise_test(t => sharedWorkerBlobFetchTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "public to local: success.");
-
-promise_test(t => sharedWorkerBlobFetchTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "public to private: failed preflight.");
-
-promise_test(t => sharedWorkerBlobFetchTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "public to private: success.");
-
-promise_test(t => sharedWorkerBlobFetchTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: { server: Server.HTTPS_PUBLIC },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "public to public: success.");
-
-promise_test(t => sharedWorkerBlobFetchTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.OTHER_HTTPS_LOCAL,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "treat-as-public to local: failed preflight.");
-
-promise_test(t => sharedWorkerBlobFetchTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.OTHER_HTTPS_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "treat-as-public to local: success.");
-
-promise_test(t => sharedWorkerBlobFetchTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: { server: Server.HTTPS_LOCAL },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "treat-as-public to local (same-origin): no preflight required.");
-
-promise_test(t => sharedWorkerBlobFetchTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "treat-as-public to private: failed preflight.");
-
-promise_test(t => sharedWorkerBlobFetchTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "treat-as-public to private: success.");
-
-promise_test(t => sharedWorkerBlobFetchTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTPS_PUBLIC,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "treat-as-public to public: success.");
-
diff --git a/tests/wpt/tests/fetch/private-network-access/shared-worker-blob-fetch.tentative.window.js b/tests/wpt/tests/fetch/private-network-access/shared-worker-blob-fetch.tentative.window.js
deleted file mode 100644
index d430ea73837..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/shared-worker-blob-fetch.tentative.window.js
+++ /dev/null
@@ -1,173 +0,0 @@
-// META: script=/common/utils.js
-// META: script=resources/support.sub.js
-//
-// Spec: https://wicg.github.io/private-network-access/#integration-fetch
-//
-// These tests check that fetches from within `SharedWorker` scripts that are
-// loaded from blob URLs are subject to Private Network Access checks, just like
-// fetches from within documents.
-//
-// This file covers only those tests that must execute in a non-secure context.
-// Other tests are defined in: shared-worker-blob-fetch.https.window.js
-
-promise_test(t => sharedWorkerBlobFetchTest(t, {
-  source: { server: Server.HTTP_LOCAL },
-  target: { server: Server.HTTP_LOCAL },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "local to local: success.");
-
-promise_test(t => sharedWorkerBlobFetchTest(t, {
-  source: { server: Server.HTTP_PRIVATE },
-  target: {
-    server: Server.HTTP_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.optionalSuccess(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "private to local: failure.");
-
-promise_test(t => sharedWorkerBlobFetchTest(t, {
-  source: { server: Server.HTTP_PRIVATE },
-  target: { server: Server.HTTP_PRIVATE },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "private to private: success.");
-
-promise_test(t => sharedWorkerBlobFetchTest(t, {
-  source: { server: Server.HTTP_PUBLIC },
-  target: {
-    server: Server.HTTP_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.optionalSuccess(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "public to local: failure.");
-
-promise_test(t => sharedWorkerBlobFetchTest(t, {
-  source: { server: Server.HTTP_PUBLIC },
-  target: {
-    server: Server.HTTP_PRIVATE,
-    behavior: {
-      preflight: PreflightBehavior.optionalSuccess(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "public to private: failure.");
-
-promise_test(t => sharedWorkerBlobFetchTest(t, {
-  source: { server: Server.HTTP_PUBLIC },
-  target: { server: Server.HTTP_PUBLIC },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "public to public: success.");
-
-promise_test(t => sharedWorkerBlobFetchTest(t, {
-  source: {
-    server: Server.HTTP_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTP_LOCAL,
-    behavior: { preflight: PreflightBehavior.optionalSuccess(token()) },
-  },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "treat-as-public to local: failure.");
-
-promise_test(t => sharedWorkerBlobFetchTest(t, {
-  source: {
-    server: Server.HTTP_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTP_PRIVATE,
-    behavior: {
-      preflight: PreflightBehavior.optionalSuccess(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "treat-as-public to private: failure.");
-
-promise_test(t => sharedWorkerBlobFetchTest(t, {
-  source: {
-    server: Server.HTTP_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTP_PUBLIC,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "treat-as-public to public: success.");
-
-// The following tests verify that workers served over HTTPS are not allowed to
-// make private network requests because they are not secure contexts.
-
-promise_test(t => sharedWorkerBlobFetchTest(t, {
-  source: { server: Server.HTTPS_LOCAL },
-  target: {
-    server: Server.HTTP_LOCAL,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "local https to local: success.");
-
-promise_test(t => sharedWorkerBlobFetchTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: {
-    server: Server.HTTP_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.optionalSuccess(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "private https to local: failure.");
-
-promise_test(t => sharedWorkerBlobFetchTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: {
-    server: Server.HTTP_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.optionalSuccess(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "public https to local: failure.");
-
-promise_test(t => sharedWorkerBlobFetchTest(t, {
-  source: { server: Server.HTTPS_LOCAL },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "local https to local https: success.");
-
-promise_test(t => sharedWorkerBlobFetchTest(t, {
-  source: { server: Server.HTTPS_PRIVATE },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.optionalSuccess(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "private https to local https: failure.");
-
-promise_test(t => sharedWorkerBlobFetchTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.optionalSuccess(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "public https to local https: failure.");
diff --git a/tests/wpt/tests/fetch/private-network-access/shared-worker-fetch.tentative.https.window.js b/tests/wpt/tests/fetch/private-network-access/shared-worker-fetch.tentative.https.window.js
deleted file mode 100644
index e5f2b949202..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/shared-worker-fetch.tentative.https.window.js
+++ /dev/null
@@ -1,167 +0,0 @@
-// META: script=/common/utils.js
-// META: script=resources/support.sub.js
-//
-// Spec: https://wicg.github.io/private-network-access/#integration-fetch
-//
-// These tests check that fetches from within `SharedWorker` scripts are subject
-// to Private Network Access checks, just like fetches from within documents.
-//
-// This file covers only those tests that must execute in a secure context.
-// Other tests are defined in: shared-worker-fetch.window.js
-
-promise_test(t => sharedWorkerFetchTest(t, {
-  source: { server: Server.HTTPS_LOCAL },
-  target: { server: Server.HTTPS_LOCAL },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "local to local: success.");
-
-promise_test(t => sharedWorkerFetchTest(t, {
-  source: { server: Server.HTTPS_PRIVATE },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "private to local: failure.");
-
-promise_test(t => sharedWorkerFetchTest(t, {
-  source: { server: Server.HTTPS_PRIVATE },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "private to local: success.");
-
-promise_test(t => sharedWorkerFetchTest(t, {
-  source: { server: Server.HTTPS_PRIVATE },
-  target: { server: Server.HTTPS_PRIVATE },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "private to private: success.");
-
-promise_test(t => sharedWorkerFetchTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "public to local: failed preflight.");
-
-promise_test(t => sharedWorkerFetchTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "public to local: success.");
-
-promise_test(t => sharedWorkerFetchTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "public to private: failed preflight.");
-
-promise_test(t => sharedWorkerFetchTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "public to private: success.");
-
-promise_test(t => sharedWorkerFetchTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: { server: Server.HTTPS_PUBLIC },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "public to public: success.");
-
-promise_test(t => sharedWorkerFetchTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.OTHER_HTTPS_LOCAL,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "treat-as-public to local: failed preflight.");
-
-promise_test(t => sharedWorkerFetchTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.OTHER_HTTPS_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "treat-as-public to local: success.");
-
-promise_test(t => sharedWorkerFetchTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: { server: Server.HTTPS_LOCAL },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "treat-as-public to local (same-origin): no preflight required.");
-
-promise_test(t => sharedWorkerFetchTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "treat-as-public to private: failed preflight.");
-
-promise_test(t => sharedWorkerFetchTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "treat-as-public to private: success.");
-
-promise_test(t => sharedWorkerFetchTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTPS_PUBLIC,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "treat-as-public to public: success.");
-
diff --git a/tests/wpt/tests/fetch/private-network-access/shared-worker-fetch.tentative.window.js b/tests/wpt/tests/fetch/private-network-access/shared-worker-fetch.tentative.window.js
deleted file mode 100644
index 9bc1a89bead..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/shared-worker-fetch.tentative.window.js
+++ /dev/null
@@ -1,154 +0,0 @@
-// META: script=/common/utils.js
-// META: script=resources/support.sub.js
-//
-// Spec: https://wicg.github.io/private-network-access/#integration-fetch
-//
-// These tests check that fetches from within `SharedWorker` scripts are subject
-// to Private Network Access checks, just like fetches from within documents.
-//
-// This file covers only those tests that must execute in a non-secure context.
-// Other tests are defined in: shared-worker-fetch.https.window.js
-
-promise_test(t => sharedWorkerFetchTest(t, {
-  source: { server: Server.HTTP_LOCAL },
-  target: { server: Server.HTTP_LOCAL },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "local to local: success.");
-
-promise_test(t => sharedWorkerFetchTest(t, {
-  source: { server: Server.HTTP_PRIVATE },
-  target: {
-    server: Server.HTTP_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.optionalSuccess(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "private to local: failure.");
-
-promise_test(t => sharedWorkerFetchTest(t, {
-  source: { server: Server.HTTP_PRIVATE },
-  target: { server: Server.HTTP_PRIVATE },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "private to private: success.");
-
-promise_test(t => sharedWorkerFetchTest(t, {
-  source: { server: Server.HTTP_PUBLIC },
-  target: {
-    server: Server.HTTP_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.optionalSuccess(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "public to local: failure.");
-
-promise_test(t => sharedWorkerFetchTest(t, {
-  source: { server: Server.HTTP_PUBLIC },
-  target: {
-    server: Server.HTTP_PRIVATE,
-    behavior: {
-      preflight: PreflightBehavior.optionalSuccess(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "public to private: failure.");
-
-promise_test(t => sharedWorkerFetchTest(t, {
-  source: { server: Server.HTTP_PUBLIC },
-  target: { server: Server.HTTP_PUBLIC },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "public to public: success.");
-
-promise_test(t => sharedWorkerFetchTest(t, {
-  source: {
-    server: Server.HTTP_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTP_LOCAL,
-    behavior: { preflight: PreflightBehavior.optionalSuccess(token()) },
-  },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "treat-as-public to local: failure.");
-
-promise_test(t => sharedWorkerFetchTest(t, {
-  source: {
-    server: Server.HTTP_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTP_PRIVATE,
-    behavior: {
-      preflight: PreflightBehavior.optionalSuccess(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "treat-as-public to private: failure.");
-
-promise_test(t => sharedWorkerFetchTest(t, {
-  source: {
-    server: Server.HTTP_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTP_PUBLIC,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "treat-as-public to public: success.");
-
-// The following tests verify that workers served over HTTPS are not allowed to
-// make private network requests because they are not secure contexts.
-
-promise_test(t => sharedWorkerFetchTest(t, {
-  source: { server: Server.HTTPS_LOCAL },
-  target: {
-    server: Server.HTTP_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.optionalSuccess(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "local https to local: success.");
-
-promise_test(t => sharedWorkerFetchTest(t, {
-  source: { server: Server.HTTPS_PRIVATE },
-  target: {
-    server: Server.HTTP_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.optionalSuccess(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "private https to local: failure.");
-
-promise_test(t => sharedWorkerFetchTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: {
-    server: Server.HTTP_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.optionalSuccess(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "public https to local: failure.");
-
-promise_test(t => sharedWorkerFetchTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: {
-    server: Server.HTTP_PRIVATE,
-    behavior: {
-      preflight: PreflightBehavior.optionalSuccess(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "public https to private: failure.");
diff --git a/tests/wpt/tests/fetch/private-network-access/shared-worker.tentative.https.window.js b/tests/wpt/tests/fetch/private-network-access/shared-worker.tentative.https.window.js
deleted file mode 100644
index 24ae1087828..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/shared-worker.tentative.https.window.js
+++ /dev/null
@@ -1,34 +0,0 @@
-// META: script=/common/utils.js
-// META: script=resources/support.sub.js
-//
-// Spec: https://wicg.github.io/private-network-access/#integration-fetch
-//
-// These tests mirror `Worker` tests, except using `SharedWorker`.
-// See also: worker.https.window.js
-//
-// This file covers only those tests that must execute in a secure context.
-// Other tests are defined in: shared-worker.window.js
-
-promise_test(t => sharedWorkerScriptTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: { server: Server.HTTPS_LOCAL },
-  expected: WorkerScriptTestResult.SUCCESS,
-}), "treat-as-public to local: success.");
-
-promise_test(t => sharedWorkerScriptTest(t, {
-  source: {
-    server: Server.HTTPS_PRIVATE,
-    treatAsPublic: true,
-  },
-  target: { server: Server.HTTPS_PRIVATE },
-  expected: WorkerScriptTestResult.SUCCESS,
-}), "treat-as-public to private: success.");
-
-promise_test(t => sharedWorkerScriptTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: { server: Server.HTTPS_PUBLIC },
-  expected: WorkerScriptTestResult.SUCCESS,
-}), "public to public: success.");
diff --git a/tests/wpt/tests/fetch/private-network-access/shared-worker.tentative.window.js b/tests/wpt/tests/fetch/private-network-access/shared-worker.tentative.window.js
deleted file mode 100644
index ffa8a360c70..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/shared-worker.tentative.window.js
+++ /dev/null
@@ -1,34 +0,0 @@
-// META: script=/common/utils.js
-// META: script=resources/support.sub.js
-//
-// Spec: https://wicg.github.io/private-network-access/#integration-fetch
-//
-// These tests mirror `Worker` tests, except using `SharedWorker`.
-// See also: shared-worker.window.js
-//
-// This file covers only those tests that must execute in a non secure context.
-// Other tests are defined in: shared-worker.https.window.js
-
-promise_test(t => sharedWorkerScriptTest(t, {
-  source: {
-    server: Server.HTTP_LOCAL,
-    treatAsPublic: true,
-  },
-  target: { server: Server.HTTP_LOCAL },
-  expected: WorkerScriptTestResult.FAILURE,
-}), "treat-as-public to local: failure.");
-
-promise_test(t => sharedWorkerScriptTest(t, {
-  source: {
-    server: Server.HTTP_PRIVATE,
-    treatAsPublic: true,
-  },
-  target: { server: Server.HTTP_PRIVATE },
-  expected: WorkerScriptTestResult.FAILURE,
-}), "treat-as-public to private: failure.");
-
-promise_test(t => sharedWorkerScriptTest(t, {
-  source: { server: Server.HTTP_PUBLIC },
-  target: { server: Server.HTTP_PUBLIC },
-  expected: WorkerScriptTestResult.SUCCESS,
-}), "public to public: success.");
diff --git a/tests/wpt/tests/fetch/private-network-access/websocket.tentative.https.window.js b/tests/wpt/tests/fetch/private-network-access/websocket.tentative.https.window.js
deleted file mode 100644
index 0731896098b..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/websocket.tentative.https.window.js
+++ /dev/null
@@ -1,40 +0,0 @@
-// META: script=resources/support.sub.js
-//
-// Spec: https://wicg.github.io/private-network-access/#integration-fetch
-//
-// These tests verify that websocket connections behave similarly to fetches.
-//
-// This file covers only those tests that must execute in a secure context.
-// Other tests are defined in: websocket.https.window.js
-
-setup(() => {
-  // Making sure we are in a secure context, as expected.
-  assert_true(window.isSecureContext);
-});
-
-promise_test(t => websocketTest(t, {
-  source: { server: Server.HTTPS_LOCAL },
-  target: { server: Server.WSS_LOCAL },
-  expected: WebsocketTestResult.SUCCESS,
-}), "local to local: websocket success.");
-
-promise_test(t => websocketTest(t, {
-  source: { server: Server.HTTPS_PRIVATE },
-  target: { server: Server.WSS_LOCAL },
-  expected: WebsocketTestResult.SUCCESS,
-}), "private to local: websocket success.");
-
-promise_test(t => websocketTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: { server: Server.WSS_LOCAL },
-  expected: WebsocketTestResult.SUCCESS,
-}), "public to local: websocket success.");
-
-promise_test(t => websocketTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: { server: Server.WSS_LOCAL },
-  expected: WebsocketTestResult.SUCCESS,
-}), "treat-as-public to local: websocket success.");
diff --git a/tests/wpt/tests/fetch/private-network-access/websocket.tentative.window.js b/tests/wpt/tests/fetch/private-network-access/websocket.tentative.window.js
deleted file mode 100644
index a44cfaedec7..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/websocket.tentative.window.js
+++ /dev/null
@@ -1,40 +0,0 @@
-// META: script=resources/support.sub.js
-//
-// Spec: https://wicg.github.io/private-network-access/#integration-fetch
-
-// These tests verify that websocket connections behave similarly to fetches.
-//
-// This file covers only those tests that must execute in a non secure context.
-// Other tests are defined in: websocket.https.window.js
-
-setup(() => {
-  // Making sure we are in a non secure context, as expected.
-  assert_false(window.isSecureContext);
-});
-
-promise_test(t => websocketTest(t, {
-  source: { server: Server.HTTP_LOCAL },
-  target: { server: Server.WS_LOCAL },
-  expected: WebsocketTestResult.SUCCESS,
-}), "local to local: websocket success.");
-
-promise_test(t => websocketTest(t, {
-  source: { server: Server.HTTP_PRIVATE },
-  target: { server: Server.WS_LOCAL },
-  expected: WebsocketTestResult.FAILURE,
-}), "private to local: websocket failure.");
-
-promise_test(t => websocketTest(t, {
-  source: { server: Server.HTTP_PUBLIC },
-  target: { server: Server.WS_LOCAL },
-  expected: WebsocketTestResult.FAILURE,
-}), "public to local: websocket failure.");
-
-promise_test(t => websocketTest(t, {
-  source: {
-    server: Server.HTTP_LOCAL,
-    treatAsPublic: true,
-  },
-  target: { server: Server.WS_LOCAL },
-  expected: WebsocketTestResult.FAILURE,
-}), "treat-as-public to local: websocket failure.");
diff --git a/tests/wpt/tests/fetch/private-network-access/window-open-existing.tentative.window.js b/tests/wpt/tests/fetch/private-network-access/window-open-existing.tentative.window.js
deleted file mode 100644
index 5a6cd4c5cfd..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/window-open-existing.tentative.window.js
+++ /dev/null
@@ -1,95 +0,0 @@
-// META: script=/common/dispatcher/dispatcher.js
-// META: script=/common/utils.js
-// META: script=resources/support.sub.js
-// META: timeout=long
-//
-// Spec: https://wicg.github.io/private-network-access/
-//
-// These tests verify that non-secure contexts cannot navigate to less-public
-// address spaces via window.open to an existing window.
-
-setup(() => {
-  // Making sure we are in a non secure context, as expected.
-  assert_false(window.isSecureContext);
-});
-
-promise_test_parallel(t => windowOpenExistingTest(t, {
-  source: { server: Server.HTTP_LOCAL },
-  target: { server: Server.HTTP_LOCAL },
-  expected: NavigationTestResult.SUCCESS,
-}), "local to local: no preflight required.");
-
-promise_test_parallel(t => windowOpenExistingTest(t, {
-  source: { server: Server.HTTP_LOCAL },
-  target: { server: Server.HTTP_PRIVATE },
-  expected: NavigationTestResult.SUCCESS,
-}), "local to private: no preflight required.");
-
-promise_test_parallel(t => windowOpenExistingTest(t, {
-  source: { server: Server.HTTP_LOCAL },
-  target: { server: Server.HTTP_PUBLIC },
-  expected: NavigationTestResult.SUCCESS,
-}), "local to public: no preflight required.");
-
-promise_test_parallel(t => windowOpenExistingTest(t, {
-  source: { server: Server.HTTP_PRIVATE },
-  target: { server: Server.HTTP_LOCAL },
-  expected: NavigationTestResult.FAILURE,
-}), "private to local: failure.");
-
-promise_test_parallel(t => windowOpenExistingTest(t, {
-  source: { server: Server.HTTP_PRIVATE },
-  target: { server: Server.HTTP_PRIVATE },
-  expected: NavigationTestResult.SUCCESS,
-}), "private to private: no preflight required.");
-
-promise_test_parallel(t => windowOpenExistingTest(t, {
-  source: { server: Server.HTTP_PRIVATE },
-  target: { server: Server.HTTP_PUBLIC },
-  expected: NavigationTestResult.SUCCESS,
-}), "private to public: no preflight required.");
-
-promise_test_parallel(t => windowOpenExistingTest(t, {
-  source: { server: Server.HTTP_PUBLIC },
-  target: { server: Server.HTTP_LOCAL },
-  expected: NavigationTestResult.FAILURE,
-}), "public to local: failure.");
-
-promise_test_parallel(t => windowOpenExistingTest(t, {
-  source: { server: Server.HTTP_PUBLIC },
-  target: { server: Server.HTTP_PRIVATE },
-  expected: NavigationTestResult.FAILURE,
-}), "public to private: failure.");
-
-promise_test_parallel(t => windowOpenExistingTest(t, {
-  source: { server: Server.HTTP_PUBLIC },
-  target: { server: Server.HTTP_PUBLIC },
-  expected: NavigationTestResult.SUCCESS,
-}), "public to public: no preflight required.");
-
-promise_test_parallel(t => windowOpenExistingTest(t, {
-  source: {
-    server: Server.HTTP_LOCAL,
-    treatAsPublic: true,
-  },
-  target: { server: Server.HTTP_LOCAL },
-  expected: NavigationTestResult.FAILURE,
-}), "treat-as-public-address to local: failure.");
-
-promise_test_parallel(t => windowOpenExistingTest(t, {
-  source: {
-    server: Server.HTTP_LOCAL,
-    treatAsPublic: true,
-  },
-  target: { server: Server.HTTP_PRIVATE },
-  expected: NavigationTestResult.FAILURE,
-}), "treat-as-public-address to private: failure.");
-
-promise_test_parallel(t => windowOpenExistingTest(t, {
-  source: {
-    server: Server.HTTP_LOCAL,
-    treatAsPublic: true,
-  },
-  target: { server: Server.HTTP_PUBLIC },
-  expected: NavigationTestResult.SUCCESS,
-}), "treat-as-public-address to public: no preflight required.");
diff --git a/tests/wpt/tests/fetch/private-network-access/window-open.tentative.https.window.js b/tests/wpt/tests/fetch/private-network-access/window-open.tentative.https.window.js
deleted file mode 100644
index 6793d1f3b4d..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/window-open.tentative.https.window.js
+++ /dev/null
@@ -1,205 +0,0 @@
-// META: script=/common/subset-tests-by-key.js
-// META: script=/common/dispatcher/dispatcher.js
-// META: script=/common/utils.js
-// META: script=resources/support.sub.js
-// META: timeout=long
-// META: variant=?include=from-local
-// META: variant=?include=from-private
-// META: variant=?include=from-public
-// META: variant=?include=from-treat-as-public
-//
-// These tests verify that secure contexts can navigate to less-public address
-// spaces via window.open iff the target server responds affirmatively to
-// preflight requests.
-
-setup(() => {
-  assert_true(window.isSecureContext);
-});
-
-// Source: secure local context.
-//
-// All fetches unaffected by Private Network Access.
-
-subsetTestByKey("from-local", promise_test_parallel, t => windowOpenTest(t, {
-  source: { server: Server.HTTPS_LOCAL },
-  target: { server: Server.HTTPS_LOCAL },
-  expected: NavigationTestResult.SUCCESS,
-}), "local to local: no preflight required.");
-
-subsetTestByKey("from-local", promise_test_parallel, t => windowOpenTest(t, {
-  source: { server: Server.HTTPS_LOCAL },
-  target: { server: Server.HTTPS_PRIVATE },
-  expected: NavigationTestResult.SUCCESS,
-}), "local to private: no preflight required.");
-
-subsetTestByKey("from-local", promise_test_parallel, t => windowOpenTest(t, {
-  source: { server: Server.HTTPS_LOCAL },
-  target: { server: Server.HTTPS_PUBLIC },
-  expected: NavigationTestResult.SUCCESS,
-}), "local to public: no preflight required.");
-
-// Generates tests of preflight behavior for a single (source, target) pair.
-//
-// Scenarios:
-//
-//   - preflight response has non-2xx HTTP code
-//   - preflight response is missing CORS headers
-//   - preflight response is missing the PNA-specific `Access-Control` header
-//   - success
-//
-function makePreflightTests({
-  key,
-  sourceName,
-  sourceServer,
-  sourceTreatAsPublic,
-  targetName,
-  targetServer,
-}) {
-  const prefix =
-      `${sourceName} to ${targetName}: `;
-
-  const source = {
-    server: sourceServer,
-    treatAsPublic: sourceTreatAsPublic,
-  };
-
-  promise_test_parallel(t => windowOpenTest(t, {
-    source,
-    target: {
-      server: targetServer,
-      behavior: { preflight: PreflightBehavior.failure() },
-    },
-    expected: NavigationTestResult.FAILURE,
-  }), prefix + "failed preflight.");
-
-  promise_test_parallel(t => windowOpenTest(t, {
-    source,
-    target: {
-      server: targetServer,
-      behavior: { preflight: PreflightBehavior.noCorsHeader(token()) },
-    },
-    expected: NavigationTestResult.FAILURE,
-  }), prefix + "missing CORS headers.");
-
-  promise_test_parallel(t => windowOpenTest(t, {
-    source,
-    target: {
-      server: targetServer,
-      behavior: { preflight: PreflightBehavior.noPnaHeader(token()) },
-    },
-    expected: NavigationTestResult.FAILURE,
-  }), prefix + "missing PNA header.");
-
-  promise_test_parallel(t => windowOpenTest(t, {
-    source,
-    target: {
-      server: targetServer,
-      behavior: { preflight: PreflightBehavior.navigation(token()) },
-    },
-    expected: NavigationTestResult.SUCCESS,
-  }), prefix + "success.");
-}
-
-// Source: private secure context.
-//
-// Fetches to the local address space require a successful preflight response
-// carrying a PNA-specific header.
-
-subsetTestByKey('from-private', makePreflightTests, {
-  sourceServer: Server.HTTPS_PRIVATE,
-  sourceName: 'private',
-  targetServer: Server.HTTPS_LOCAL,
-  targetName: 'local',
-});
-
-subsetTestByKey("from-private", promise_test_parallel, t => windowOpenTest(t, {
-  source: { server: Server.HTTPS_PRIVATE },
-  target: { server: Server.HTTPS_PRIVATE },
-  expected: NavigationTestResult.SUCCESS,
-}), "private to private: no preflight required.");
-
-subsetTestByKey("from-private", promise_test_parallel, t => windowOpenTest(t, {
-  source: { server: Server.HTTPS_PRIVATE },
-  target: { server: Server.HTTPS_PUBLIC },
-  expected: NavigationTestResult.SUCCESS,
-}), "private to public: no preflight required.");
-
-// Source: public secure context.
-//
-// Fetches to the local and private address spaces require a successful
-// preflight response carrying a PNA-specific header.
-
-subsetTestByKey('from-public', makePreflightTests, {
-  sourceServer: Server.HTTPS_PUBLIC,
-  sourceName: "public",
-  targetServer: Server.HTTPS_LOCAL,
-  targetName: "local",
-});
-
-subsetTestByKey('from-public', makePreflightTests, {
-  sourceServer: Server.HTTPS_PUBLIC,
-  sourceName: "public",
-  targetServer: Server.HTTPS_PRIVATE,
-  targetName: "private",
-});
-
-subsetTestByKey("from-public", promise_test_parallel, t => windowOpenTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: { server: Server.HTTPS_PUBLIC },
-  expected: NavigationTestResult.SUCCESS,
-}), "public to public: no preflight required.");
-
-// The following tests verify that `CSP: treat-as-public-address` makes
-// documents behave as if they had been served from a public IP address.
-
-subsetTestByKey('from-treat-as-public', makePreflightTests, {
-  sourceServer: Server.HTTPS_LOCAL,
-  sourceTreatAsPublic: true,
-  sourceName: "treat-as-public-address",
-  targetServer: Server.OTHER_HTTPS_LOCAL,
-  targetName: "local",
-});
-
-subsetTestByKey("from-treat-as-public", promise_test_parallel,
-    t => windowOpenTest(t, {
-      source: {
-        server: Server.HTTPS_LOCAL,
-        treatAsPublic: true,
-      },
-      target: {server: Server.HTTPS_LOCAL},
-      expected: NavigationTestResult.SUCCESS,
-    }),
-    'treat-as-public-address to local (same-origin): no preflight required.');
-
-subsetTestByKey('from-treat-as-public', makePreflightTests, {
-  sourceServer: Server.HTTPS_LOCAL,
-  sourceTreatAsPublic: true,
-  sourceName: 'treat-as-public-address',
-  targetServer: Server.HTTPS_PRIVATE,
-  targetName: 'private',
-});
-
-subsetTestByKey("from-treat-as-public", promise_test_parallel,
-    t => windowOpenTest(t, {
-      source: {
-        server: Server.HTTPS_LOCAL,
-        treatAsPublic: true,
-      },
-      target: {server: Server.HTTPS_PUBLIC},
-      expected: NavigationTestResult.SUCCESS,
-    }),
-    'treat-as-public-address to public: no preflight required.');
-
-promise_test_parallel(
-    t => windowOpenTest(t, {
-      source: {
-        server: Server.HTTPS_LOCAL,
-        treatAsPublic: true,
-      },
-      target: {
-        server: Server.HTTPS_PUBLIC,
-        behavior: {preflight: PreflightBehavior.optionalSuccess(token())}
-      },
-      expected: NavigationTestResult.SUCCESS,
-    }),
-    'treat-as-public-address to local: optional preflight');
diff --git a/tests/wpt/tests/fetch/private-network-access/window-open.tentative.window.js b/tests/wpt/tests/fetch/private-network-access/window-open.tentative.window.js
deleted file mode 100644
index 5e2313d60a2..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/window-open.tentative.window.js
+++ /dev/null
@@ -1,95 +0,0 @@
-// META: script=/common/dispatcher/dispatcher.js
-// META: script=/common/utils.js
-// META: script=resources/support.sub.js
-// META: timeout=long
-//
-// Spec: https://wicg.github.io/private-network-access/
-//
-// These tests verify that non-secure contexts cannot open a new window to
-// less-public address spaces.
-
-setup(() => {
-  // Making sure we are in a non secure context, as expected.
-  assert_false(window.isSecureContext);
-});
-
-promise_test_parallel(t => windowOpenTest(t, {
-  source: { server: Server.HTTP_LOCAL },
-  target: { server: Server.HTTP_LOCAL },
-  expected: NavigationTestResult.SUCCESS,
-}), "local to local: no preflight required.");
-
-promise_test_parallel(t => windowOpenTest(t, {
-  source: { server: Server.HTTP_LOCAL },
-  target: { server: Server.HTTP_PRIVATE },
-  expected: NavigationTestResult.SUCCESS,
-}), "local to private: no preflight required.");
-
-promise_test_parallel(t => windowOpenTest(t, {
-  source: { server: Server.HTTP_LOCAL },
-  target: { server: Server.HTTP_PUBLIC },
-  expected: NavigationTestResult.SUCCESS,
-}), "local to public: no preflight required.");
-
-promise_test_parallel(t => windowOpenTest(t, {
-  source: { server: Server.HTTP_PRIVATE },
-  target: { server: Server.HTTP_LOCAL },
-  expected: NavigationTestResult.FAILURE,
-}), "private to local: failure.");
-
-promise_test_parallel(t => windowOpenTest(t, {
-  source: { server: Server.HTTP_PRIVATE },
-  target: { server: Server.HTTP_PRIVATE },
-  expected: NavigationTestResult.SUCCESS,
-}), "private to private: no preflight required.");
-
-promise_test_parallel(t => windowOpenTest(t, {
-  source: { server: Server.HTTP_PRIVATE },
-  target: { server: Server.HTTP_PUBLIC },
-  expected: NavigationTestResult.SUCCESS,
-}), "private to public: no preflight required.");
-
-promise_test_parallel(t => windowOpenTest(t, {
-  source: { server: Server.HTTP_PUBLIC },
-  target: { server: Server.HTTP_LOCAL },
-  expected: NavigationTestResult.FAILURE,
-}), "public to local: failure.");
-
-promise_test_parallel(t => windowOpenTest(t, {
-  source: { server: Server.HTTP_PUBLIC },
-  target: { server: Server.HTTP_PRIVATE },
-  expected: NavigationTestResult.FAILURE,
-}), "public to private: failure.");
-
-promise_test_parallel(t => windowOpenTest(t, {
-  source: { server: Server.HTTP_PUBLIC },
-  target: { server: Server.HTTP_PUBLIC },
-  expected: NavigationTestResult.SUCCESS,
-}), "public to public: no preflight required.");
-
-promise_test_parallel(t => windowOpenTest(t, {
-  source: {
-    server: Server.HTTP_LOCAL,
-    treatAsPublic: true,
-  },
-  target: { server: Server.HTTP_LOCAL },
-  expected: NavigationTestResult.FAILURE,
-}), "treat-as-public-address to local: failure.");
-
-promise_test_parallel(t => windowOpenTest(t, {
-  source: {
-    server: Server.HTTP_LOCAL,
-    treatAsPublic: true,
-  },
-  target: { server: Server.HTTP_PRIVATE },
-  expected: NavigationTestResult.FAILURE,
-}), "treat-as-public-address to private: failure.");
-
-promise_test_parallel(t => windowOpenTest(t, {
-  source: {
-    server: Server.HTTP_LOCAL,
-    treatAsPublic: true,
-  },
-  target: { server: Server.HTTP_PUBLIC },
-  expected: NavigationTestResult.SUCCESS,
-}), "treat-as-public-address to public: no preflight required.");
diff --git a/tests/wpt/tests/fetch/private-network-access/worker-blob-fetch.tentative.window.js b/tests/wpt/tests/fetch/private-network-access/worker-blob-fetch.tentative.window.js
deleted file mode 100644
index e119746b8a6..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/worker-blob-fetch.tentative.window.js
+++ /dev/null
@@ -1,155 +0,0 @@
-// META: script=/common/utils.js
-// META: script=resources/support.sub.js
-//
-// Spec: https://wicg.github.io/private-network-access/#integration-fetch
-//
-// These tests check that fetches from within `Worker` scripts loaded from blob
-// URLs are subject to Private Network Access checks, just like fetches from
-// within documents.
-//
-// This file covers only those tests that must execute in a non-secure context.
-// Other tests are defined in: worker-blob-fetch.https.window.js
-
-promise_test(t => workerBlobFetchTest(t, {
-  source: { server: Server.HTTP_LOCAL },
-  target: { server: Server.HTTP_LOCAL },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "local to local: success.");
-
-promise_test(t => workerBlobFetchTest(t, {
-  source: { server: Server.HTTP_PRIVATE },
-  target: {
-    server: Server.HTTP_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.optionalSuccess(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "private to local: failure.");
-
-promise_test(t => workerBlobFetchTest(t, {
-  source: { server: Server.HTTP_PRIVATE },
-  target: { server: Server.HTTP_PRIVATE },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "private to private: success.");
-
-promise_test(t => workerBlobFetchTest(t, {
-  source: { server: Server.HTTP_PUBLIC },
-  target: {
-    server: Server.HTTP_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.optionalSuccess(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "public to local: failure.");
-
-promise_test(t => workerBlobFetchTest(t, {
-  source: { server: Server.HTTP_PUBLIC },
-  target: {
-    server: Server.HTTP_PRIVATE,
-    behavior: {
-      preflight: PreflightBehavior.optionalSuccess(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "public to private: failure.");
-
-promise_test(t => workerBlobFetchTest(t, {
-  source: { server: Server.HTTP_PUBLIC },
-  target: { server: Server.HTTP_PUBLIC },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "public to public: success.");
-
-promise_test(t => workerBlobFetchTest(t, {
-  source: {
-    server: Server.HTTP_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTP_LOCAL,
-    behavior: { preflight: PreflightBehavior.optionalSuccess(token()) },
-  },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "treat-as-public to local: failure.");
-
-promise_test(t => workerBlobFetchTest(t, {
-  source: {
-    server: Server.HTTP_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTP_PRIVATE,
-    behavior: {
-      preflight: PreflightBehavior.optionalSuccess(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "treat-as-public to private: failure.");
-
-promise_test(t => workerBlobFetchTest(t, {
-  source: {
-    server: Server.HTTP_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTP_PUBLIC,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "treat-as-public to public: success.");
-
-// The following tests verify that workers served over HTTPS are not allowed to
-// make private network requests because they are not secure contexts.
-
-promise_test(t => workerBlobFetchTest(t, {
-  source: { server: Server.HTTPS_LOCAL },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.optionalSuccess(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "local https to local https: success.");
-
-promise_test(t => workerBlobFetchTest(t, {
-  source: { server: Server.HTTPS_PRIVATE },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.optionalSuccess(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "private https to local https: failure.");
-
-promise_test(t => workerBlobFetchTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: {
-      preflight: PreflightBehavior.optionalSuccess(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "public https to private https: failure.");
-
-promise_test(t => workerBlobFetchTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.optionalSuccess(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "public https to local https: failure.");
diff --git a/tests/wpt/tests/fetch/private-network-access/worker-fetch.tentative.https.window.js b/tests/wpt/tests/fetch/private-network-access/worker-fetch.tentative.https.window.js
deleted file mode 100644
index 89e0c3cf1f3..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/worker-fetch.tentative.https.window.js
+++ /dev/null
@@ -1,151 +0,0 @@
-// META: script=/common/utils.js
-// META: script=resources/support.sub.js
-//
-// Spec: https://wicg.github.io/private-network-access/#integration-fetch
-//
-// These tests check that fetches from within `Worker` scripts are subject to
-// Private Network Access checks, just like fetches from within documents.
-//
-// This file covers only those tests that must execute in a secure context.
-// Other tests are defined in: worker-fetch.window.js
-
-promise_test(t => workerFetchTest(t, {
-  source: { server: Server.HTTPS_LOCAL },
-  target: { server: Server.HTTPS_LOCAL },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "local to local: success.");
-
-promise_test(t => workerFetchTest(t, {
-  source: { server: Server.HTTPS_PRIVATE },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "private to local: failed preflight.");
-
-promise_test(t => workerFetchTest(t, {
-  source: { server: Server.HTTPS_PRIVATE },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "private to local: success.");
-
-promise_test(t => workerFetchTest(t, {
-  source: { server: Server.HTTPS_PRIVATE },
-  target: { server: Server.HTTPS_PRIVATE },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "private to private: success.");
-
-promise_test(t => workerFetchTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "public to local: failed preflight.");
-
-promise_test(t => workerFetchTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "public to local: success.");
-
-promise_test(t => workerFetchTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "public to private: failed preflight.");
-
-promise_test(t => workerFetchTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "public to private: success.");
-
-promise_test(t => workerFetchTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: { server: Server.HTTPS_PUBLIC },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "public to public: success.");
-
-promise_test(t => workerFetchTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: { server: Server.HTTPS_LOCAL },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "treat-as-public to local: failed preflight.");
-
-promise_test(t => workerFetchTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: { preflight: PreflightBehavior.optionalSuccess(token()) },
-  },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "treat-as-public to local: success.");
-
-promise_test(t => workerFetchTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "treat-as-public to private: failed preflight.");
-
-promise_test(t => workerFetchTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "treat-as-public to private: success.");
-
-promise_test(t => workerFetchTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTPS_PUBLIC,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "treat-as-public to public: success.");
diff --git a/tests/wpt/tests/fetch/private-network-access/worker-fetch.tentative.window.js b/tests/wpt/tests/fetch/private-network-access/worker-fetch.tentative.window.js
deleted file mode 100644
index 4d6b12f0671..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/worker-fetch.tentative.window.js
+++ /dev/null
@@ -1,154 +0,0 @@
-// META: script=/common/utils.js
-// META: script=resources/support.sub.js
-//
-// Spec: https://wicg.github.io/private-network-access/#integration-fetch
-//
-// These tests check that fetches from within `Worker` scripts are subject to
-// Private Network Access checks, just like fetches from within documents.
-//
-// This file covers only those tests that must execute in a non-secure context.
-// Other tests are defined in: worker-fetch.https.window.js
-
-promise_test(t => workerFetchTest(t, {
-  source: { server: Server.HTTP_LOCAL },
-  target: { server: Server.HTTP_LOCAL },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "local to local: success.");
-
-promise_test(t => workerFetchTest(t, {
-  source: { server: Server.HTTP_PRIVATE },
-  target: {
-    server: Server.HTTP_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.optionalSuccess(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "private to local: failure.");
-
-promise_test(t => workerFetchTest(t, {
-  source: { server: Server.HTTP_PRIVATE },
-  target: { server: Server.HTTP_PRIVATE },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "private to private: success.");
-
-promise_test(t => workerFetchTest(t, {
-  source: { server: Server.HTTP_PUBLIC },
-  target: {
-    server: Server.HTTP_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.optionalSuccess(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "public to local: failure.");
-
-promise_test(t => workerFetchTest(t, {
-  source: { server: Server.HTTP_PUBLIC },
-  target: {
-    server: Server.HTTP_PRIVATE,
-    behavior: {
-      preflight: PreflightBehavior.optionalSuccess(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "public to private: failure.");
-
-promise_test(t => workerFetchTest(t, {
-  source: { server: Server.HTTP_PUBLIC },
-  target: { server: Server.HTTP_PUBLIC },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "public to public: success.");
-
-promise_test(t => workerFetchTest(t, {
-  source: {
-    server: Server.HTTP_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTP_LOCAL,
-    behavior: { preflight: PreflightBehavior.optionalSuccess(token()) },
-  },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "treat-as-public to local: failure.");
-
-promise_test(t => workerFetchTest(t, {
-  source: {
-    server: Server.HTTP_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTP_PRIVATE,
-    behavior: {
-      preflight: PreflightBehavior.optionalSuccess(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "treat-as-public to private: failure.");
-
-promise_test(t => workerFetchTest(t, {
-  source: {
-    server: Server.HTTP_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTP_PUBLIC,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "treat-as-public to public: success.");
-
-// The following tests verify that workers served over HTTPS are not allowed to
-// make private network requests because they are not secure contexts.
-
-promise_test(t => workerFetchTest(t, {
-  source: { server: Server.HTTPS_LOCAL },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.optionalSuccess(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: WorkerFetchTestResult.SUCCESS,
-}), "local https to local https: success.");
-
-promise_test(t => workerFetchTest(t, {
-  source: { server: Server.HTTPS_PRIVATE },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.optionalSuccess(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "private https to local https: failure.");
-
-promise_test(t => workerFetchTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: {
-      preflight: PreflightBehavior.optionalSuccess(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "public https to private https: failure.");
-
-promise_test(t => workerFetchTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.optionalSuccess(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: WorkerFetchTestResult.FAILURE,
-}), "public https to local https: failure.");
diff --git a/tests/wpt/tests/fetch/private-network-access/worker.tentative.https.window.js b/tests/wpt/tests/fetch/private-network-access/worker.tentative.https.window.js
deleted file mode 100644
index a0f19314ee3..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/worker.tentative.https.window.js
+++ /dev/null
@@ -1,37 +0,0 @@
-// META: script=/common/utils.js
-// META: script=resources/support.sub.js
-//
-// Spec: https://wicg.github.io/private-network-access/#integration-fetch
-//
-// These tests check that initial `Worker` script fetches in secure contexts are
-// exempt from Private Network Access checks because workers can only be fetched
-// same-origin and the origin is potentially trustworthy. The only way to test
-// this is using the `treat-as-public` CSP directive to artificially place the
-// parent document in the `public` IP address space.
-//
-// This file covers only those tests that must execute in a secure context.
-// Other tests are defined in: worker.window.js
-
-promise_test(t => workerScriptTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: { server: Server.HTTPS_LOCAL },
-  expected: WorkerScriptTestResult.SUCCESS,
-}), "treat-as-public to local: success.");
-
-promise_test(t => workerScriptTest(t, {
-  source: {
-    server: Server.HTTPS_PRIVATE,
-    treatAsPublic: true,
-  },
-  target: { server: Server.HTTPS_PRIVATE },
-  expected: WorkerScriptTestResult.SUCCESS,
-}), "treat-as-public to private: success.");
-
-promise_test(t => workerScriptTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: { server: Server.HTTPS_PUBLIC },
-  expected: WorkerScriptTestResult.SUCCESS,
-}), "public to public: success.");
diff --git a/tests/wpt/tests/fetch/private-network-access/worker.tentative.window.js b/tests/wpt/tests/fetch/private-network-access/worker.tentative.window.js
deleted file mode 100644
index 118c0992544..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/worker.tentative.window.js
+++ /dev/null
@@ -1,37 +0,0 @@
-// META: script=/common/utils.js
-// META: script=resources/support.sub.js
-//
-// Spec: https://wicg.github.io/private-network-access/#integration-fetch
-//
-// These tests check that initial `Worker` script fetches are subject to Private
-// Network Access checks, just like a regular `fetch()`. The main difference is
-// that workers can only be fetched same-origin, so the only way to test this
-// is using the `treat-as-public` CSP directive to artificially place the parent
-// document in the `public` IP address space.
-//
-// This file covers only those tests that must execute in a non secure context.
-// Other tests are defined in: worker.https.window.js
-
-promise_test(t => workerScriptTest(t, {
-  source: {
-    server: Server.HTTP_LOCAL,
-    treatAsPublic: true,
-  },
-  target: { server: Server.HTTP_LOCAL },
-  expected: WorkerScriptTestResult.FAILURE,
-}), "treat-as-public to local: failure.");
-
-promise_test(t => workerScriptTest(t, {
-  source: {
-    server: Server.HTTP_PRIVATE,
-    treatAsPublic: true,
-  },
-  target: { server: Server.HTTP_PRIVATE },
-  expected: WorkerScriptTestResult.FAILURE,
-}), "treat-as-public to private: failure.");
-
-promise_test(t => workerScriptTest(t, {
-  source: { server: Server.HTTP_PUBLIC },
-  target: { server: Server.HTTP_PUBLIC },
-  expected: WorkerScriptTestResult.SUCCESS,
-}), "public to public: success.");
diff --git a/tests/wpt/tests/fetch/private-network-access/xhr-from-treat-as-public.tentative.https.window.js b/tests/wpt/tests/fetch/private-network-access/xhr-from-treat-as-public.tentative.https.window.js
deleted file mode 100644
index 3aae3050d97..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/xhr-from-treat-as-public.tentative.https.window.js
+++ /dev/null
@@ -1,83 +0,0 @@
-// META: script=/common/utils.js
-// META: script=resources/support.sub.js
-//
-// Spec: https://wicg.github.io/private-network-access/#integration-fetch
-//
-// These tests verify that documents fetched from the `local` address space yet
-// carrying the `treat-as-public-address` CSP directive are treated as if they
-// had been fetched from the `public` address space.
-
-promise_test(t => xhrTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.OTHER_HTTPS_LOCAL,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: XhrTestResult.FAILURE,
-}), "treat-as-public to local: failed preflight.");
-
-promise_test(t => xhrTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.OTHER_HTTPS_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: XhrTestResult.SUCCESS,
-}), "treat-as-public to local: success.");
-
-promise_test(t => xhrTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: { server: Server.HTTPS_LOCAL },
-  expected: XhrTestResult.SUCCESS,
-}), "treat-as-public to local (same-origin): no preflight required.");
-
-promise_test(t => xhrTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: XhrTestResult.FAILURE,
-}), "treat-as-public to private: failed preflight.");
-
-promise_test(t => xhrTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: {
-      preflight: PreflightBehavior.optionalSuccess(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: XhrTestResult.SUCCESS,
-}), "treat-as-public to private: success.");
-
-promise_test(t => xhrTest(t, {
-  source: {
-    server: Server.HTTPS_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTPS_PUBLIC,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: XhrTestResult.SUCCESS,
-}), "treat-as-public to public: no preflight required.");
diff --git a/tests/wpt/tests/fetch/private-network-access/xhr.https.tentative.window.js b/tests/wpt/tests/fetch/private-network-access/xhr.https.tentative.window.js
deleted file mode 100644
index 4dc5da9912f..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/xhr.https.tentative.window.js
+++ /dev/null
@@ -1,142 +0,0 @@
-// META: script=/common/subset-tests-by-key.js
-// META: script=/common/utils.js
-// META: script=resources/support.sub.js
-// META: variant=?include=from-local
-// META: variant=?include=from-private
-// META: variant=?include=from-public
-//
-// Spec: https://wicg.github.io/private-network-access/#integration-fetch
-//
-// These tests mirror fetch.https.window.js, but use `XmlHttpRequest` instead of
-// `fetch()` to perform subresource fetches. Preflights are tested less
-// extensively due to coverage being already provided by `fetch()`.
-//
-// This file covers only those tests that must execute in a secure context.
-// Other tests are defined in: xhr.window.js
-
-setup(() => {
-  // Making sure we are in a secure context, as expected.
-  assert_true(window.isSecureContext);
-});
-
-// Source: secure local context.
-//
-// All fetches unaffected by Private Network Access.
-
-subsetTestByKey("from-local", promise_test, t => xhrTest(t, {
-  source: { server: Server.HTTPS_LOCAL },
-  target: { server: Server.HTTPS_LOCAL },
-  expected: XhrTestResult.SUCCESS,
-}), "local to local: no preflight required.");
-
-subsetTestByKey("from-local", promise_test, t => xhrTest(t, {
-  source: { server: Server.HTTPS_LOCAL },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: XhrTestResult.SUCCESS,
-}), "local to private: no preflight required.");
-
-subsetTestByKey("from-local", promise_test, t => xhrTest(t, {
-  source: { server: Server.HTTPS_LOCAL },
-  target: {
-    server: Server.HTTPS_PUBLIC,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: XhrTestResult.SUCCESS,
-}), "local to public: no preflight required.");
-
-// Source: private secure context.
-//
-// Fetches to the local address space require a successful preflight response
-// carrying a PNA-specific header.
-
-subsetTestByKey("from-private", promise_test, t => xhrTest(t, {
-  source: { server: Server.HTTPS_PRIVATE },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: XhrTestResult.FAILURE,
-}), "private to local: failed preflight.");
-
-subsetTestByKey("from-private", promise_test, t => xhrTest(t, {
-  source: { server: Server.HTTPS_PRIVATE },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: XhrTestResult.SUCCESS,
-}), "private to local: success.");
-
-subsetTestByKey("from-private", promise_test, t => xhrTest(t, {
-  source: { server: Server.HTTPS_PRIVATE },
-  target: { server: Server.HTTPS_PRIVATE },
-  expected: XhrTestResult.SUCCESS,
-}), "private to private: no preflight required.");
-
-subsetTestByKey("from-private", promise_test, t => xhrTest(t, {
-  source: { server: Server.HTTPS_PRIVATE },
-  target: {
-    server: Server.HTTPS_PUBLIC,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: XhrTestResult.SUCCESS,
-}), "private to public: no preflight required.");
-
-// Source: public secure context.
-//
-// Fetches to the local and private address spaces require a successful
-// preflight response carrying a PNA-specific header.
-
-subsetTestByKey("from-public", promise_test, t => xhrTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: XhrTestResult.FAILURE,
-}), "public to local: failed preflight.");
-
-subsetTestByKey("from-public", promise_test, t => xhrTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: XhrTestResult.SUCCESS,
-}), "public to local: success.");
-
-subsetTestByKey("from-public", promise_test, t => xhrTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: XhrTestResult.FAILURE,
-}), "public to private: failed preflight.");
-
-subsetTestByKey("from-public", promise_test, t => xhrTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: {
-      preflight: PreflightBehavior.success(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: XhrTestResult.SUCCESS,
-}), "public to private: success.");
-
-subsetTestByKey("from-public", promise_test, t => xhrTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: { server: Server.HTTPS_PUBLIC },
-  expected: XhrTestResult.SUCCESS,
-}), "public to public: no preflight required.");
diff --git a/tests/wpt/tests/fetch/private-network-access/xhr.tentative.window.js b/tests/wpt/tests/fetch/private-network-access/xhr.tentative.window.js
deleted file mode 100644
index fa307dc559a..00000000000
--- a/tests/wpt/tests/fetch/private-network-access/xhr.tentative.window.js
+++ /dev/null
@@ -1,195 +0,0 @@
-// META: script=/common/utils.js
-// META: script=resources/support.sub.js
-//
-// Spec: https://wicg.github.io/private-network-access/#integration-fetch
-//
-// These tests mirror fetch.window.js, but use `XmlHttpRequest` instead of
-// `fetch()` to perform subresource fetches.
-//
-// This file covers only those tests that must execute in a non secure context.
-// Other tests are defined in: xhr.https.window.js
-
-setup(() => {
-  // Making sure we are in a non secure context, as expected.
-  assert_false(window.isSecureContext);
-});
-
-promise_test(t => xhrTest(t, {
-  source: { server: Server.HTTP_LOCAL },
-  target: { server: Server.HTTP_LOCAL },
-  expected: XhrTestResult.SUCCESS,
-}), "local to local: no preflight required.");
-
-promise_test(t => xhrTest(t, {
-  source: { server: Server.HTTP_LOCAL },
-  target: {
-    server: Server.HTTP_PRIVATE,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: XhrTestResult.SUCCESS,
-}), "local to private: no preflight required.");
-
-promise_test(t => xhrTest(t, {
-  source: { server: Server.HTTP_LOCAL },
-  target: {
-    server: Server.HTTP_PUBLIC,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: XhrTestResult.SUCCESS,
-}), "local to public: no preflight required.");
-
-promise_test(t => xhrTest(t, {
-  source: { server: Server.HTTP_PRIVATE },
-  target: {
-    server: Server.HTTP_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.optionalSuccess(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: XhrTestResult.FAILURE,
-}), "private to local: failure.");
-
-promise_test(t => xhrTest(t, {
-  source: { server: Server.HTTP_PRIVATE },
-  target: { server: Server.HTTP_PRIVATE },
-  expected: XhrTestResult.SUCCESS,
-}), "private to private: no preflight required.");
-
-promise_test(t => xhrTest(t, {
-  source: { server: Server.HTTP_PRIVATE },
-  target: {
-    server: Server.HTTP_PUBLIC,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: XhrTestResult.SUCCESS,
-}), "private to public: no preflight required.");
-
-promise_test(t => xhrTest(t, {
-  source: { server: Server.HTTP_PUBLIC },
-  target: {
-    server: Server.HTTP_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.optionalSuccess(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: XhrTestResult.FAILURE,
-}), "public to local: failure.");
-
-promise_test(t => xhrTest(t, {
-  source: { server: Server.HTTP_PUBLIC },
-  target: {
-    server: Server.HTTP_PRIVATE,
-    behavior: {
-      preflight: PreflightBehavior.optionalSuccess(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: XhrTestResult.FAILURE,
-}), "public to private: failure.");
-
-promise_test(t => xhrTest(t, {
-  source: { server: Server.HTTP_PUBLIC },
-  target: { server: Server.HTTP_PUBLIC },
-  expected: XhrTestResult.SUCCESS,
-}), "public to public: no preflight required.");
-
-// These tests verify that documents fetched from the `local` address space yet
-// carrying the `treat-as-public-address` CSP directive are treated as if they
-// had been fetched from the `public` address space.
-
-promise_test(t => xhrTest(t, {
-  source: {
-    server: Server.HTTP_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTP_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.optionalSuccess(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: XhrTestResult.FAILURE,
-}), "treat-as-public-address to local: failure.");
-
-promise_test(t => xhrTest(t, {
-  source: {
-    server: Server.HTTP_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTP_PRIVATE,
-    behavior: {
-      preflight: PreflightBehavior.optionalSuccess(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: XhrTestResult.FAILURE,
-}), "treat-as-public-address to private: failure.");
-
-promise_test(t => xhrTest(t, {
-  source: {
-    server: Server.HTTP_LOCAL,
-    treatAsPublic: true,
-  },
-  target: {
-    server: Server.HTTP_PUBLIC,
-    behavior: { response: ResponseBehavior.allowCrossOrigin() },
-  },
-  expected: XhrTestResult.SUCCESS,
-}), "treat-as-public-address to public: no preflight required.");
-
-// These tests verify that HTTPS iframes embedded in an HTTP top-level document
-// cannot fetch subresources from less-public address spaces. Indeed, even
-// though the iframes have HTTPS origins, they are non-secure contexts because
-// their parent is a non-secure context.
-
-promise_test(t => xhrTest(t, {
-  source: { server: Server.HTTPS_LOCAL },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.optionalSuccess(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: XhrTestResult.SUCCESS,
-}), "local https to local: success.");
-
-promise_test(t => xhrTest(t, {
-  source: { server: Server.HTTPS_PRIVATE },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.optionalSuccess(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: XhrTestResult.FAILURE,
-}), "private https to local: failure.");
-
-promise_test(t => xhrTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: {
-    server: Server.HTTPS_LOCAL,
-    behavior: {
-      preflight: PreflightBehavior.optionalSuccess(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: XhrTestResult.FAILURE,
-}), "public https to local: failure.");
-
-promise_test(t => xhrTest(t, {
-  source: { server: Server.HTTPS_PUBLIC },
-  target: {
-    server: Server.HTTPS_PRIVATE,
-    behavior: {
-      preflight: PreflightBehavior.optionalSuccess(token()),
-      response: ResponseBehavior.allowCrossOrigin(),
-    },
-  },
-  expected: XhrTestResult.FAILURE,
-}), "public https to private: failure.");
diff --git a/tests/wpt/tests/fonts/math/largeop-displayoperatorminheight1250.woff b/tests/wpt/tests/fonts/math/largeop-displayoperatorminheight1250.woff
new file mode 100644
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HcmV?d00001

diff --git a/tests/wpt/tests/hsts/only-top-level-navigation-hsts-upgrade.tentative.sub.html b/tests/wpt/tests/hsts/only-top-level-navigation-hsts-upgrade.tentative.sub.html
deleted file mode 100644
index be891d05c01..00000000000
--- a/tests/wpt/tests/hsts/only-top-level-navigation-hsts-upgrade.tentative.sub.html
+++ /dev/null
@@ -1,76 +0,0 @@
-<!DOCTYPE html>
-<meta charset=utf-8>
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<body>
-<script type="module">
-  // Check HSTS upgrades only apply to top-level (outermost) frame navigations.
-  // Note that this test must be run on an insecure origin because it relies on
-  // insecure iframes being loadable. If it's instead run on a secure origin
-  // then mixed content blocking will prevent HSTS from working.
-
-  // 0) Confirm that insecure iframes can be loaded.
-  // 1) Pin the alt hostname to the HSTS via hsts.html
-  // 2) Attempt to load an iframe via http. This should fail because
-  //    http://{{hosts[alt][]}}:{{ports[https][0]}} is an invalid origin *and*
-  //    HSTS should not upgrade the iframe navigation to https.
-  // 3) Open a new window and navigate it to the same http origin. This should
-  //    successfully be upgraded to https, load, and then postMessage its origin.
-
-  promise_test(async() => {
-
-    function onMessageWithTimeout(name) {
-      return new Promise((resolve, reject) => {
-
-      const timeoutID = step_timeout(() => {
-        reject(new Error("Timeout: Didn't receive message for " + name));
-        onmessage = null;
-      }, 3000);
-
-      onmessage = (event) => {
-        clearTimeout(timeoutID);
-        resolve(event);
-      };
-    });
-    };
-
-    // Step 0.
-    const iframeLoadable = document.createElement('iframe');
-    const iframeLoadablePromise = onMessageWithTimeout("Step 0");
-
-    iframeLoadable.src = "http://{{hosts[][]}}:{{ports[http][0]}}/hsts/resources/hsts.html";
-    document.body.appendChild(iframeLoadable);
-    await iframeLoadablePromise;
-
-    // Step 1.
-    // Add HSTS pin for domain.
-    await fetch("https://{{hosts[alt][]}}:{{ports[https][0]}}/hsts/resources/hsts.html?as-fetch");
-
-    // Step 2.
-    // Note: HTTP, not HTTPS:
-    const hstsIframe = document.createElement('iframe');
-    const hstsIframePromise = onMessageWithTimeout("Step 2")
-    .then(resolve => assert_false(true, "HSTS iframe unexpectedly loaded"),
-                                  reject => {/*frame didn't load, as expected */});
-
-    hstsIframe.src = "http://{{hosts[alt][]}}:{{ports[https][0]}}/hsts/resources/hsts.html";
-    document.body.appendChild(hstsIframe);
-    await hstsIframePromise;
-
-    // Step 3.
-    const hstsWindowPromise = onMessageWithTimeout("Step 3")
-    .then((event) =>
-      assert_equals(event.data.origin,
-                    "https://{{hosts[alt][]}}:{{ports[https][0]}}"));
-
-    const w = window.open("http://{{hosts[alt][]}}:{{ports[https][0]}}/hsts/resources/post-origin-to-opener.html", "_blank");
-    if(!w) {
-      assert_false(true, "Window didn't open. Is there a popup blocker?");
-    }
-
-    await hstsWindowPromise;
-}, "HSTS only navigates top-level");
-
-</script>
-</body>
-</html>
\ No newline at end of file
diff --git a/tests/wpt/tests/hsts/third-party-subframe-hsts-upgrade.tentative.sub.html b/tests/wpt/tests/hsts/third-party-subframe-hsts-upgrade.tentative.sub.html
new file mode 100644
index 00000000000..7619709706a
--- /dev/null
+++ b/tests/wpt/tests/hsts/third-party-subframe-hsts-upgrade.tentative.sub.html
@@ -0,0 +1,95 @@
+<!DOCTYPE html>
+<meta charset=utf-8>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<body>
+<script>
+  // Check HSTS tracking prevention functionality that is common to all major
+  // browsers. Note that this test must be run on an insecure origin because it
+  // relies on insecure iframes being loadable. If it's instead run on a secure
+  // origin then mixed content blocking will prevent HSTS from working.
+
+  // 0) Confirm that insecure iframes can be loaded and that the page's
+  //    window.location.host corresponds to {{hosts[][]}}:{{ports[http][0]}}.
+  // 1) Pin the alt hostname to the HSTS via hsts.html
+  // 2) Attempt to load an iframe via http. This should fail because the WPT
+  //    server only accepts HTTPS requests on the specified HTTPS port in
+  //    http://{{hosts[alt][]}}:{{ports[https][0]}} *and*
+  //    HSTS should not upgrade the iframe navigation to https.
+  //    This is true for all major browsers as part of their tracking protection
+  //    mitigations such as not allowing third-party loads to set HSTS state
+  //    or not performing HSTS upgrades for anything but top-level navigations.
+  // 3) Pin the hostname to the HSTS via hsts.html
+  // 4) Open a new window and navigate it to the same http origin. This should
+  //    successfully be upgraded to https, load, and then postMessage its origin
+  //    since it is top level and also not third party it should pass for all
+  //    the browsers.
+
+  const CURRENT_HOST_HTTP_PORT = "{{hosts[][]}}:{{ports[http][0]}}";
+  const CURRENT_HOST_HTTPS_PORT = "{{hosts[][]}}:{{ports[https][0]}}";
+  const ALTERNATE_HOST_HTTPS_PORT = "{{hosts[alt][]}}:{{ports[https][0]}}";
+
+  promise_test(async() => {
+
+    function onMessageWithTimeout(name) {
+      return new Promise((resolve, reject) => {
+
+      const timeoutID = step_timeout(() => {
+        reject(new Error("Timeout: Didn't receive message for " + name));
+        onmessage = null;
+      }, 3000);
+
+      onmessage = (event) => {
+        clearTimeout(timeoutID);
+        resolve(event);
+      };
+    });
+    };
+
+    // Step 0.
+    const iframeLoadable = document.createElement('iframe');
+    const iframeLoadablePromise = onMessageWithTimeout("Step 0");
+    assert_equals(window.location.host, CURRENT_HOST_HTTP_PORT,
+    "this test assumes that the page's window.location.host corresponds to " +
+    "hosts[][]");
+
+    iframeLoadable.src = `http://${CURRENT_HOST_HTTP_PORT}/hsts/resources/hsts.html`;
+    document.body.appendChild(iframeLoadable);
+    await iframeLoadablePromise;
+
+    // Step 1.
+    // Add HSTS pin for domain.
+    await fetch(`https://${ALTERNATE_HOST_HTTPS_PORT}/hsts/resources/hsts.html?as-fetch`);
+
+    // Step 2.
+    // Note: HTTP, not HTTPS:
+    const hstsIframe = document.createElement('iframe');
+    const hstsIframePromise = onMessageWithTimeout("Step 2")
+    .then(resolve => assert_false(true, "HSTS iframe unexpectedly loaded"),
+                                  reject => {/*frame didn't load, as expected */});
+
+    hstsIframe.src = `http://${ALTERNATE_HOST_HTTPS_PORT}/hsts/resources/hsts.html`;
+    document.body.appendChild(hstsIframe);
+    await hstsIframePromise;
+
+    // Step 3.
+    // Add HSTS pin for current domain.
+    await fetch(`https://${CURRENT_HOST_HTTPS_PORT}/hsts/resources/hsts.html?as-fetch`);
+
+    // Step 4.
+    const hstsWindowPromise = onMessageWithTimeout("Step 3")
+    .then((event) =>
+      assert_equals(event.data.origin,
+                    `https://${CURRENT_HOST_HTTPS_PORT}`));
+
+    const w = window.open(`http://${CURRENT_HOST_HTTPS_PORT}/hsts/resources/post-origin-to-opener.html`, "_blank");
+    if(!w) {
+      assert_false(true, "Window didn't open. Is there a popup blocker?");
+    }
+
+    await hstsWindowPromise;
+}, "Third-party subframe navigations don't result in HSTS upgrade");
+
+</script>
+</body>
+</html>
\ No newline at end of file
diff --git a/tests/wpt/tests/html/dom/access-key-label.html b/tests/wpt/tests/html/dom/access-key-label.html
new file mode 100644
index 00000000000..8f09032d8b1
--- /dev/null
+++ b/tests/wpt/tests/html/dom/access-key-label.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>accessKeyLabel attribute</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<body>
+<script>
+function createButtonWithAccessKey(accessKey) {
+    const button = document.createElement('button');
+    button.setAttribute('accesskey', accessKey);
+    return button;
+}
+
+// The modifiers are not the same across all browser vendors.
+// Therefore, the test uses non empty.
+test(() => {
+    const element = createButtonWithAccessKey('b');
+    assert_not_equals(element.accessKeyLabel, '');
+}, 'Returns non empty string when accesskey is valid');
+
+test(() => {
+    const element = createButtonWithAccessKey('s 0');
+    assert_equals(element.accessKeyLabel, '');
+}, 'Returns empty string when accesskey is invalid');
+</script>
+</body>
+</html>
\ No newline at end of file
diff --git a/tests/wpt/tests/html/rendering/replaced-elements/attributes-for-embedded-content-and-images/video-default-object-height-constrained-by-max-width.html b/tests/wpt/tests/html/rendering/replaced-elements/attributes-for-embedded-content-and-images/video-default-object-height-constrained-by-max-width.html
new file mode 100644
index 00000000000..b81824a4700
--- /dev/null
+++ b/tests/wpt/tests/html/rendering/replaced-elements/attributes-for-embedded-content-and-images/video-default-object-height-constrained-by-max-width.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta name="assert" content="Video that has no intrinsic size should have height constrained by max-width">
+<link rel="help" href="https://w3c.github.io/csswg-drafts/css-sizing-4/#aspect-ratio-size-transfers">
+<link author="Sammy Gill" href="mailto:sammy.gill@apple.com">
+<link rel="match" href="/css/reference/ref-filled-green-100px-square.xht">
+<style>
+  video {
+    background-color: green;
+    width: auto;
+    height: auto;
+    max-width: 100px;
+  }
+</style>
+</head>
+<!-- aspect-ratio should be set to: auto 100 / 100-->
+<body>
+<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+<video width="100" height="100" src="/css/support/60x60-green.png">
+</body>
+</html>
diff --git a/tests/wpt/tests/html/rendering/replaced-elements/attributes-for-embedded-content-and-images/video-default-object-width-constrained-by-max-height.html b/tests/wpt/tests/html/rendering/replaced-elements/attributes-for-embedded-content-and-images/video-default-object-width-constrained-by-max-height.html
new file mode 100644
index 00000000000..a2a4e8c3bd9
--- /dev/null
+++ b/tests/wpt/tests/html/rendering/replaced-elements/attributes-for-embedded-content-and-images/video-default-object-width-constrained-by-max-height.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta name="assert" content="Video that has no intrinsic size should have width constrained by max-height">
+<link rel="help" href="https://w3c.github.io/csswg-drafts/css-sizing-4/#aspect-ratio-size-transfers">
+<link author="Sammy Gill" href="mailto:sammy.gill@apple.com">
+<link rel="match" href="/css/reference/ref-filled-green-100px-square.xht">
+<style>
+  video {
+    background-color: green;
+    width: auto;
+    height: auto;
+    max-height: 100px;
+  }
+</style>
+</head>
+  <!-- aspect-ratio should be set to: auto 100 / 100-->
+<body>
+<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+<video width="100" height="100" src="/css/support/60x60-green.png">
+</body>
+</html>
diff --git a/tests/wpt/tests/html/rendering/replaced-elements/attributes-for-embedded-content-and-images/video-inline-size-containment-no-crash.html b/tests/wpt/tests/html/rendering/replaced-elements/attributes-for-embedded-content-and-images/video-inline-size-containment-no-crash.html
new file mode 100644
index 00000000000..3b9cf130bba
--- /dev/null
+++ b/tests/wpt/tests/html/rendering/replaced-elements/attributes-for-embedded-content-and-images/video-inline-size-containment-no-crash.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html>
+<head>
+<link author="Sammy Gill" href="mailto:sammy.gill@apple.com">
+<meta name="assert" content="Applying inline-size containment to the video should not result in a debug assert being triggered">
+<style>
+video {
+  aspect-ratio: 1;
+  container-type: inline-size;
+  inset: 0 auto;
+  min-width: min-content;
+  position: fixed;
+}
+</style>
+</head>
+<body>
+<video></video>
+</body>
+</html>
diff --git a/tests/wpt/tests/html/semantics/forms/the-input-element/show-picker-disabled-readonly.html b/tests/wpt/tests/html/semantics/forms/the-input-element/show-picker-disabled-readonly.html
index 74448f70fb5..5cf03f32fff 100644
--- a/tests/wpt/tests/html/semantics/forms/the-input-element/show-picker-disabled-readonly.html
+++ b/tests/wpt/tests/html/semantics/forms/the-input-element/show-picker-disabled-readonly.html
@@ -1,4 +1,5 @@
 <!DOCTYPE html>
+<meta name=timeout content=long>
 <title>Test showPicker() disabled/readonly requirement</title>
 <script src="/resources/testharness.js"></script>
 <script src="/resources/testharnessreport.js"></script>
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select-in-page/resources/customizable-select-in-page.css b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select-in-page/resources/customizable-select-in-page.css
index 3f79f4c9212..ec2c9c08246 100644
--- a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select-in-page/resources/customizable-select-in-page.css
+++ b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select-in-page/resources/customizable-select-in-page.css
@@ -2,6 +2,7 @@
   display: inline-block;
   overflow-inline: auto;
   overflow-block: auto;
+  border: 1px solid;
 }
 
 .customizable-select-in-page.disabled {
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/appearance-base-select-other-elements.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/appearance-base-select-other-elements.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/appearance-base-select-other-elements.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/appearance-base-select-other-elements.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/border-rendering.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/border-rendering.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/border-rendering.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/border-rendering.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/button-in-popover.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/button-in-popover.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/button-in-popover.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/button-in-popover.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/closed-listbox-rendering.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/closed-listbox-rendering.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/closed-listbox-rendering.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/closed-listbox-rendering.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/focus-ring-rendering.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/focus-ring-rendering.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/focus-ring-rendering.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/focus-ring-rendering.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/option-list.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/option-list.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/option-list.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/option-list.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/picker-and-slotted.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/picker-and-slotted.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/picker-and-slotted.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/picker-and-slotted.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/resources/customizable-select-styles.css b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/resources/customizable-select-styles.css
index acf84493d5c..427ffe3e93d 100644
--- a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/resources/customizable-select-styles.css
+++ b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/resources/customizable-select-styles.css
@@ -1,6 +1,4 @@
-/* These are UA styles for select and customizable select. */
-/* TODO(crbug.com/41483940): These rules will probably change here:
- * https://github.com/w3c/csswg-drafts/issues/10857 */
+/* These are standardized UA styles for base appearance select. */
 
 .customizable-select-button, .customizable-select-popover {
   box-sizing: border-box;
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/resources/customizable-select-utils.js b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/resources/customizable-select-utils.js
index 9b72b8bbb36..0753d8eb170 100644
--- a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/resources/customizable-select-utils.js
+++ b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/resources/customizable-select-utils.js
@@ -1,12 +1,3 @@
-function populateFallbackButtonIcon() {
-  document.querySelectorAll('.customizable-select-button-icon').forEach(element => {
-    element.innerHTML =
-      `<svg viewBox="0 0 20 16" fill="none" xmlns="http://www.w3.org/2000/svg">
-        <path d="M4 6 L10 12 L 16 6"></path>
-      </svg>`;
-  });
-}
-
 function clickSelectAndCaptureAppearance(select) {
   if (document.documentElement.className !== 'reftest-wait') {
     document.body.append('FAIL - html element needs reftest-wait');
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-accessibility-minimum-target-size.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-accessibility-minimum-target-size.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-accessibility-minimum-target-size.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-accessibility-minimum-target-size.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-active.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-active.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-active.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-active.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-button-after-option.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-button-after-option.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-button-after-option.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-button-after-option.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-button-after-span.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-button-after-span.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-button-after-span.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-button-after-span.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-button-after-text.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-button-after-text.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-button-after-text.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-button-after-text.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-custom-button.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-custom-button.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-custom-button.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-custom-button.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-dark-mode.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-dark-mode.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-dark-mode.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-dark-mode.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-default-button.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-default-button.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-default-button.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-default-button.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-disabled-option.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-disabled-option.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-disabled-option.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-disabled-option.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-disabled.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-disabled.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-disabled.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-disabled.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-bottom-left-scroller.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-bottom-left-scroller.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-bottom-left-scroller.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-bottom-left-scroller.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-bottom-left.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-bottom-left.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-bottom-left.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-bottom-left.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-bottom-right-scroller.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-bottom-right-scroller.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-bottom-right-scroller.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-bottom-right-scroller.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-bottom-right.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-bottom-right.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-bottom-right.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-bottom-right.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-top-left-scroller.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-top-left-scroller.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-top-left-scroller.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-top-left-scroller.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-top-left.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-top-left.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-top-left.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-top-left.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-top-right-scroller.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-top-right-scroller.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-top-right-scroller.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-top-right-scroller.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-top-right.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-top-right.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-top-right.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-fallback-top-right.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-font-inheriting.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-font-inheriting.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-font-inheriting.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-font-inheriting.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-hover.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-hover.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-hover.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-hover.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-optgroup-legend-and-label.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-optgroup-legend-and-label.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-optgroup-legend-and-label.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-optgroup-legend-and-label.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-optgroup-legend.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-optgroup-legend.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-optgroup-legend.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-optgroup-legend.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-optgroup-rendering.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-optgroup-rendering.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-optgroup-rendering.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-optgroup-rendering.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-option-with-label.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-option-with-label.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-option-with-label.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-option-with-label.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-picker-select-border.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-picker-select-border.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-picker-select-border.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-picker-select-border.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-sizing-in-flex.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-sizing-in-flex.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-sizing-in-flex.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-sizing-in-flex.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-switching-invalidation.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-switching-invalidation.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-switching-invalidation.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-switching-invalidation.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-writing-mode-vertical-lr.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-writing-mode-vertical-lr.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-writing-mode-vertical-lr.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-writing-mode-vertical-lr.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-writing-mode-vertical-rl.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-writing-mode-vertical-rl.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-writing-mode-vertical-rl.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-writing-mode-vertical-rl.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-wrong-picker-argument.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-wrong-picker-argument.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-wrong-picker-argument.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-appearance-wrong-picker-argument.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-button-behaviors.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-button-behaviors.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-button-behaviors.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-button-behaviors.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-click-drag-option.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-click-drag-option.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-click-drag-option.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-click-drag-option.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-dialog-mode-focus.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-dialog-mode-focus.optional.html
similarity index 97%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-dialog-mode-focus.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-dialog-mode-focus.optional.html
index a6292902399..cc739150f4a 100644
--- a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-dialog-mode-focus.tentative.html
+++ b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-dialog-mode-focus.optional.html
@@ -6,6 +6,10 @@
 <script src="/resources/testharnessreport.js"></script>
 <script src="/resources/testdriver.js"></script>
 <script src="/resources/testdriver-vendor.js"></script>
+
+<!-- This test is optional because the HTML spec does not require that specific
+behaviors are mapped to specific keyboard buttons. -->
+
 <style>
   select, select::picker(select) {
     appearance: base-select;
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-disabled.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-disabled.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-disabled.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-disabled.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-events-2.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-events-2.optional.html
similarity index 98%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-events-2.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-events-2.optional.html
index bc706414a28..a5326be6240 100644
--- a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-events-2.tentative.html
+++ b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-events-2.optional.html
@@ -6,6 +6,9 @@
 <script src="/resources/testdriver-actions.js"></script>
 <script src="/resources/testdriver-vendor.js"></script>
 
+<!-- This test is optional because the HTML spec does not require that specific
+behaviors are mapped to specific keyboard buttons. -->
+
 <select id="select0">
   <button id="select0-button">
     <selectedcontent></selectedcontent>
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-events.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-events.optional.html
similarity index 98%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-events.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-events.optional.html
index 2a9280e1ae8..28620a5746a 100644
--- a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-events.tentative.html
+++ b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-events.optional.html
@@ -6,6 +6,9 @@
 <script src="/resources/testdriver-actions.js"></script>
 <script src="/resources/testdriver-vendor.js"></script>
 
+<!-- This test is optional because the HTML spec does not require that specific
+  behaviors are mapped to specific keyboard buttons. -->
+
 <div class=wrapper data-description="implicit button">
   <select class=select>
     <option class=option1>one</option>
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-explicit-size-ref.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-explicit-size-ref.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-explicit-size-ref.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-explicit-size-ref.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-explicit-size.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-explicit-size.html
similarity index 80%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-explicit-size.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-explicit-size.html
index 4fefc96c2be..71c77d266d9 100644
--- a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-explicit-size.tentative.html
+++ b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-explicit-size.html
@@ -1,7 +1,7 @@
 <!DOCTYPE html>
 <!-- Tests that select respects explicit size -->
 <link rel=author href="mailto:pkotwicz@chromium.org">
-<link rel="match" href="select-explicit-size-ref.tentative.html">
+<link rel="match" href="select-explicit-size-ref.html">
 
 <style>
 select {
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-focus-visible-with-mouse.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-focus-visible-with-mouse.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-focus-visible-with-mouse.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-focus-visible-with-mouse.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-font-size-ref.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-font-size-ref.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-font-size-ref.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-font-size-ref.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-font-size.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-font-size.html
similarity index 85%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-font-size.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-font-size.html
index fa2a4c99838..3afb0756623 100644
--- a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-font-size.tentative.html
+++ b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-font-size.html
@@ -2,7 +2,7 @@
 <!-- Tests that select respects explicit size -->
 <meta name=fuzzy content="maxDifference=0-55;totalPixels=0-32">
 <link rel=author href="mailto:pkotwicz@chromium.org">
-<link rel="match" href="select-font-size-ref.tentative.html">
+<link rel="match" href="select-font-size-ref.html">
 
 <style>
 select {
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-home-end-pagedown-pageup.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-home-end-pagedown-pageup.optional.html
similarity index 93%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-home-end-pagedown-pageup.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-home-end-pagedown-pageup.optional.html
index 4a041bbfdf9..8efc3d57f9e 100644
--- a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-home-end-pagedown-pageup.tentative.html
+++ b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-home-end-pagedown-pageup.optional.html
@@ -7,6 +7,9 @@
 <script src="/resources/testdriver.js"></script>
 <script src="/resources/testdriver-vendor.js"></script>
 
+<!-- This test is optional because the HTML spec does not require that specific
+  behaviors are mapped to specific keyboard buttons. -->
+
 <style>
 select,::picker(select) {
   appearance: base-select;
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-icon-color.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-icon-color.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-icon-color.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-icon-color.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-initial-focus-display-animation.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-initial-focus-display-animation.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-initial-focus-display-animation.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-initial-focus-display-animation.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-innertext.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-innertext.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-innertext.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-innertext.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-inside-top-layer.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-inside-top-layer.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-inside-top-layer.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-inside-top-layer.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-iterate-before-beginning.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-iterate-before-beginning.optional.html
similarity index 95%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-iterate-before-beginning.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-iterate-before-beginning.optional.html
index 0e8c16f8fda..8006bea9bd7 100644
--- a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-iterate-before-beginning.tentative.html
+++ b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-iterate-before-beginning.optional.html
@@ -6,6 +6,9 @@
 <script src="/resources/testdriver.js"></script>
 <script src="/resources/testdriver-vendor.js"></script>
 
+<!-- This test is optional because the HTML spec does not require that specific
+  behaviors are mapped to specific keyboard buttons. -->
+
 <style>
 select, ::picker(select) {
   appearance: base-select;
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-keyboard-behavior.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-keyboard-behavior.optional.html
similarity index 98%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-keyboard-behavior.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-keyboard-behavior.optional.html
index 444a95e8528..c06f2423c05 100644
--- a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-keyboard-behavior.tentative.html
+++ b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-keyboard-behavior.optional.html
@@ -10,6 +10,9 @@
 <script src="/resources/testdriver-vendor.js"></script>
 <script src="/resources/testdriver-actions.js"></script>
 
+<!-- This test is optional because the HTML spec does not require that specific
+  behaviors are mapped to specific keyboard buttons. -->
+
 <style>
 select, select::picker(select) {
   appearance: base-select;
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-keyboard-focus-change-for-hidden-options.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-keyboard-focus-change-for-hidden-options.optional.html
similarity index 94%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-keyboard-focus-change-for-hidden-options.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-keyboard-focus-change-for-hidden-options.optional.html
index b142680d2e9..ffaaaf28b94 100644
--- a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-keyboard-focus-change-for-hidden-options.tentative.html
+++ b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-keyboard-focus-change-for-hidden-options.optional.html
@@ -6,6 +6,9 @@
 <script src="/resources/testdriver.js"></script>
 <script src="/resources/testdriver-vendor.js"></script>
 
+<!-- This test is optional because the HTML spec does not require that specific
+  behaviors are mapped to specific keyboard buttons. -->
+
 <style>
   select, select::picker(select) {
     appearance: base-select;
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-mouse-behavior.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-mouse-behavior.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-mouse-behavior.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-mouse-behavior.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-only-button-opt-in.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-only-button-opt-in.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-only-button-opt-in.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-only-button-opt-in.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-only-picker-opt-in.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-only-picker-opt-in.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-only-picker-opt-in.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-only-picker-opt-in.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-open-invalidation.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-open-invalidation.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-open-invalidation.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-open-invalidation.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-optgroup-arrow-keys.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-optgroup-arrow-keys.optional.html
similarity index 93%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-optgroup-arrow-keys.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-optgroup-arrow-keys.optional.html
index 00ba0e3a39b..baf30a94cf7 100644
--- a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-optgroup-arrow-keys.tentative.html
+++ b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-optgroup-arrow-keys.optional.html
@@ -7,6 +7,9 @@
 <script src="/resources/testdriver-vendor.js"></script>
 <script src="/resources/testdriver-actions.js"></script>
 
+<!-- This test is optional because the HTML spec does not require that specific
+  behaviors are mapped to specific keyboard buttons. -->
+
 <style>
 select, ::picker(select) {
   appearance: base-select;
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-option-arrow-scroll.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-option-arrow-scroll.optional.html
similarity index 92%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-option-arrow-scroll.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-option-arrow-scroll.optional.html
index cb65bddc071..0a6dd14d154 100644
--- a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-option-arrow-scroll.tentative.html
+++ b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-option-arrow-scroll.optional.html
@@ -6,6 +6,9 @@
 <script src="/resources/testdriver.js"></script>
 <script src="/resources/testdriver-vendor.js"></script>
 
+<!-- This test is optional because the HTML spec does not require that specific
+  behaviors are mapped to specific keyboard buttons. -->
+
 <style>
 select, ::picker(select) {
   appearance: base-select;
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-option-hover-styles.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-option-hover-styles.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-option-hover-styles.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-option-hover-styles.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-option-images.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-option-images.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-option-images.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-option-images.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-datalist-options-idl.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-options-id.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-datalist-options-idl.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-options-id.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-parsing.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-parsing.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-parsing.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-parsing.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-fallback-datalist-animations.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-picker-animations.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-fallback-datalist-animations.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-picker-animations.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-picker-exit-animation.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-picker-exit-animation.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-picker-exit-animation.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-picker-exit-animation.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-picker-hover-active-pseudo.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-picker-hover-active-pseudo.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-picker-hover-active-pseudo.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-picker-hover-active-pseudo.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-picker-interactive-element-focus.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-picker-interactive-element-focus.optional.html
similarity index 91%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-picker-interactive-element-focus.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-picker-interactive-element-focus.optional.html
index 39fa568aa25..13189be3f82 100644
--- a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-picker-interactive-element-focus.tentative.html
+++ b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-picker-interactive-element-focus.optional.html
@@ -6,6 +6,9 @@
 <script src="/resources/testdriver-vendor.js"></script>
 <script src="/resources/testdriver-actions.js"></script>
 
+<!-- This test is optional because the it tests the behavior of elements not
+  included in the select element's content model. -->
+
 <select>
   <button>invoker</button>
   <button id=button>button</button>
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-picker-starting-style.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-picker-starting-style.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-picker-starting-style.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-picker-starting-style.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-popover-exit-animation.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-popover-exit-animation.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-popover-exit-animation.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-popover-exit-animation.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-pseudo-open.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-pseudo-open.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-pseudo-open.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-pseudo-open.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-second-child-button.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-second-child-button.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-second-child-button.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-second-child-button.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-size-multiple-new-content.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-size-multiple-new-content.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-size-multiple-new-content.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-size-multiple-new-content.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-synthetic-events.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-synthetic-events.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-synthetic-events.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-synthetic-events.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-text-only.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-text-only.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-text-only.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-text-only.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-type-to-search.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-type-to-search.tentative.html
index 2cb7ca49108..3210a5a662b 100644
--- a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-type-to-search.tentative.html
+++ b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-type-to-search.tentative.html
@@ -1,15 +1,14 @@
 <!DOCTYPE html>
-
 <meta name="timeout" content="long">
-
 <link rel="help" href="http://crbug.com/362922565">
-
 <script src="/resources/testharness.js"></script>
 <script src="/resources/testharnessreport.js"></script>
-
 <script src="/resources/testdriver.js"></script>
 <script src="/resources/testdriver-vendor.js"></script>
 
+<!-- This test is optional because the HTML spec does not require that specific
+  behaviors are mapped to specific keyboard buttons. -->
+
 <style>
   select, select::picker(select) {
     appearance: base-select;
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-value-selectedOption.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-value-selectedOption.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-value-selectedOption.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-value-selectedOption.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-selected-value-behavior-ref.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/selectedcontent-color-ref.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-selected-value-behavior-ref.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/selectedcontent-color-ref.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-selected-value-behavior.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/selectedcontent-color.html
similarity index 84%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-selected-value-behavior.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/selectedcontent-color.html
index 853a6e51a49..ade2a9b7f3e 100644
--- a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-selected-value-behavior.tentative.html
+++ b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/selectedcontent-color.html
@@ -1,7 +1,7 @@
 <!DOCTYPE html>
 <meta name=fuzzy content="maxDifference=0-41;totalPixels=0-1">
 <link rel=author href="mailto:jarhar@chromium.org">
-<link rel=match href="select-selected-value-behavior-ref.html">
+<link rel=match href="selectedcontent-color-ref.html">
 
 <select>
   <button>
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/selectedcontent-mutations.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/selectedcontent-mutations.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/selectedcontent-mutations.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/selectedcontent-mutations.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/selectedcontent-restore.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/selectedcontent-restore.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/selectedcontent-restore.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/selectedcontent-restore.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/selectedcontent.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/selectedcontent.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/selectedcontent.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/selectedcontent.html
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/switch-picker-appearance.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/switch-picker-appearance.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/switch-picker-appearance.tentative.html
rename to tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/switch-picker-appearance.html
diff --git a/tests/wpt/tests/html/semantics/the-button-element/interest-for/idlharness.tentative.html b/tests/wpt/tests/html/semantics/interestfor/idlharness.tentative.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/the-button-element/interest-for/idlharness.tentative.html
rename to tests/wpt/tests/html/semantics/interestfor/idlharness.tentative.html
diff --git a/tests/wpt/tests/html/semantics/the-button-element/interest-for/interestelement-interface.tentative.html b/tests/wpt/tests/html/semantics/interestfor/interestelement-interface.tentative.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/the-button-element/interest-for/interestelement-interface.tentative.html
rename to tests/wpt/tests/html/semantics/interestfor/interestelement-interface.tentative.html
diff --git a/tests/wpt/tests/html/semantics/the-button-element/interest-for/interestevent-dispatch-shadow.tentative.html b/tests/wpt/tests/html/semantics/interestfor/interestevent-dispatch-shadow.tentative.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/the-button-element/interest-for/interestevent-dispatch-shadow.tentative.html
rename to tests/wpt/tests/html/semantics/interestfor/interestevent-dispatch-shadow.tentative.html
diff --git a/tests/wpt/tests/html/semantics/the-button-element/interest-for/interestevent-interface.tentative.html b/tests/wpt/tests/html/semantics/interestfor/interestevent-interface.tentative.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/the-button-element/interest-for/interestevent-interface.tentative.html
rename to tests/wpt/tests/html/semantics/interestfor/interestevent-interface.tentative.html
diff --git a/tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-anchor-event-dispatch.tentative.html b/tests/wpt/tests/html/semantics/interestfor/interestfor-anchor-event-dispatch.tentative.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-anchor-event-dispatch.tentative.html
rename to tests/wpt/tests/html/semantics/interestfor/interestfor-anchor-event-dispatch.tentative.html
diff --git a/tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-area-event-dispatch.tentative.html b/tests/wpt/tests/html/semantics/interestfor/interestfor-area-event-dispatch.tentative.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-area-event-dispatch.tentative.html
rename to tests/wpt/tests/html/semantics/interestfor/interestfor-area-event-dispatch.tentative.html
diff --git a/tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-basic-delays.tentative.html b/tests/wpt/tests/html/semantics/interestfor/interestfor-basic-delays.tentative.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-basic-delays.tentative.html
rename to tests/wpt/tests/html/semantics/interestfor/interestfor-basic-delays.tentative.html
diff --git a/tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-button-event-dispatch.tentative.html b/tests/wpt/tests/html/semantics/interestfor/interestfor-button-event-dispatch.tentative.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-button-event-dispatch.tentative.html
rename to tests/wpt/tests/html/semantics/interestfor/interestfor-button-event-dispatch.tentative.html
diff --git a/tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-command-invoker.tentative.html b/tests/wpt/tests/html/semantics/interestfor/interestfor-command-invoker.tentative.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-command-invoker.tentative.html
rename to tests/wpt/tests/html/semantics/interestfor/interestfor-command-invoker.tentative.html
diff --git a/tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-css-properties.tentative.html b/tests/wpt/tests/html/semantics/interestfor/interestfor-css-properties.tentative.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-css-properties.tentative.html
rename to tests/wpt/tests/html/semantics/interestfor/interestfor-css-properties.tentative.html
diff --git a/tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-css-shorthands.tentative.html b/tests/wpt/tests/html/semantics/interestfor/interestfor-css-shorthands.tentative.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-css-shorthands.tentative.html
rename to tests/wpt/tests/html/semantics/interestfor/interestfor-css-shorthands.tentative.html
diff --git a/tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-event-timing.tentative.html b/tests/wpt/tests/html/semantics/interestfor/interestfor-event-timing.tentative.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-event-timing.tentative.html
rename to tests/wpt/tests/html/semantics/interestfor/interestfor-event-timing.tentative.html
diff --git a/tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-hide-delay.tentative.html b/tests/wpt/tests/html/semantics/interestfor/interestfor-hide-delay.tentative.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-hide-delay.tentative.html
rename to tests/wpt/tests/html/semantics/interestfor/interestfor-hide-delay.tentative.html
diff --git a/tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-implicit-anchor.tentative.html b/tests/wpt/tests/html/semantics/interestfor/interestfor-implicit-anchor.tentative.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-implicit-anchor.tentative.html
rename to tests/wpt/tests/html/semantics/interestfor/interestfor-implicit-anchor.tentative.html
diff --git a/tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-input-modalities.tentative.html b/tests/wpt/tests/html/semantics/interestfor/interestfor-input-modalities.tentative.html
similarity index 98%
rename from tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-input-modalities.tentative.html
rename to tests/wpt/tests/html/semantics/interestfor/interestfor-input-modalities.tentative.html
index 7d96b6e20fe..77710436fe9 100644
--- a/tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-input-modalities.tentative.html
+++ b/tests/wpt/tests/html/semantics/interestfor/interestfor-input-modalities.tentative.html
@@ -101,7 +101,7 @@ method = urlParams.get('method');
           await focusOn(el);
           break;
         default:
-          assert_notreached();
+          assert_unreached();
       }
       assert_equals(loseInterestCount, 0, 'Lose interest should not be fired yet');
       if (cancelTrigger) {
@@ -125,7 +125,7 @@ method = urlParams.get('method');
           await focusOn(otherbutton);
           break;
         default:
-          assert_notreached();
+          assert_unreached();
       }
       assert_equals(interestCount, 0, 'No new interest event should be fired');
       if (cancelTrigger || cancelLose) {
diff --git a/tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-invoker-descendants.tentative.html b/tests/wpt/tests/html/semantics/interestfor/interestfor-invoker-descendants.tentative.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-invoker-descendants.tentative.html
rename to tests/wpt/tests/html/semantics/interestfor/interestfor-invoker-descendants.tentative.html
diff --git a/tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-keyboard-behavior.tentative.html b/tests/wpt/tests/html/semantics/interestfor/interestfor-keyboard-behavior.tentative.html
similarity index 69%
rename from tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-keyboard-behavior.tentative.html
rename to tests/wpt/tests/html/semantics/interestfor/interestfor-keyboard-behavior.tentative.html
index f6bb34cacc6..211e6f1df38 100644
--- a/tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-keyboard-behavior.tentative.html
+++ b/tests/wpt/tests/html/semantics/interestfor/interestfor-keyboard-behavior.tentative.html
@@ -115,7 +115,7 @@ allInterestForElements.forEach(el => {
   function addListeners(t,element) {
     const signal = t.get_signal();
     element.addEventListener('interest',(e) => events.push(`${e.target.id} interest`),{signal});
-    element.addEventListener('loseinterest',(e) => events.push(`${e.target.id} loseinterest`),{signal});
+    element.addEventListener('loseinterest',(e) => events.push(`${e.target.id} loseinterest (${e.cancelable ? 'cancelable' : 'not cancelable'})`),{signal});
   }
   promise_test(async function (t) {
     t.add_cleanup(() => otherbutton.focus());
@@ -128,11 +128,11 @@ allInterestForElements.forEach(el => {
     assert_array_equals(events,['target interest'],'first hotkey');
     verifyInterest(el,`After show interest in ${description}`);
     await focusOn(another);
-    assert_array_equals(events,['target interest','target loseinterest','anothertarget interest'],
+    assert_array_equals(events,['target interest','target loseinterest (cancelable)','anothertarget interest'],
         'showing interest in another trigger should lose interest in the first, then gain interest in second');
     verifyInterest(another,`After show interest in ${another.id}`);
     await sendLoseInterestHotkey();
-    assert_array_equals(events,['target interest','target loseinterest','anothertarget interest','anothertarget loseinterest']);
+    assert_array_equals(events,['target interest','target loseinterest (cancelable)','anothertarget interest','anothertarget loseinterest (not cancelable)']);
     verifyInterest(undefined,`After lose interest in ${another.id}`);
     assert_false(target.matches(':popover-open'));
     assert_false(anothertarget.matches(':popover-open'));
@@ -156,21 +156,74 @@ allInterestForElements.forEach(el => {
       }
     },{signal});
     await focusOn(another);
-    assert_array_equals(events,['target interest','target loseinterest','anothertarget interest','target loseinterest'],
+    assert_array_equals(events,['target interest','target loseinterest (cancelable)','anothertarget interest','target loseinterest (cancelable)'],
         'the loseinterest listener should fire but get cancelled, anothertarget should still get interest, and that should close the first target popover firing another loseinterest');
     events = [];
     verifyInterest([el,another],`${description} should still have interest because loseinterest was cancelled`);
     assert_false(target.matches(':popover-open'),'anothertarget popover opens, closing target');
     assert_true(anothertarget.matches(':popover-open'));
     await sendLoseInterestHotkey();
-    assert_array_equals(events,['anothertarget loseinterest'],'Lose interest hot key on focused element loses just interest in that element');
+    assert_array_equals(events,['anothertarget loseinterest (not cancelable)', 'target loseinterest (not cancelable)'],'Lose interest hot key loses interest in all elements');
     assert_false(target.matches(':popover-open'));
     assert_false(anothertarget.matches(':popover-open'));
-    shouldCancelLoseInterest = false;
-    await focusOn(el);
-    await sendLoseInterestHotkey();
-    assert_array_equals(events,['anothertarget loseinterest','target loseinterest'],'Now both lost interest');
     verifyInterest(undefined,`Nothing has interest now`);
-  }, `Cancelling loseinterest caused by keyboard-gained interest cancels interest, ${description}`);
+  }, `Canceling loseinterest caused by keyboard-gained interest cancels interest, ${description}`);
 });
 </script>
+
+<button id="esc_invoker1" class="longhide" interestfor="esc_target1">ESC Invoker 1</button>
+<div id="esc_target1">Non-popover target for ESC test</div>
+<button id="esc_invoker2" class="longhide" interestfor="esc_target2">ESC Invoker 2</button>
+<div id="esc_target2">Non-popover target for ESC test</div>
+<button id="esc_invoker3" class="longhide" interestfor="esc_target3">ESC Invoker 3</button>
+<div id="esc_target3">Non-popover target for ESC test</div>
+
+<script>
+promise_test(async function (t) {
+  const invoker1 = document.getElementById('esc_invoker1');
+  const target1 = document.getElementById('esc_target1');
+  const invoker2 = document.getElementById('esc_invoker2');
+  const target2 = document.getElementById('esc_target2');
+  const invoker3 = document.getElementById('esc_invoker3');
+  const target3 = document.getElementById('esc_target3');
+  const otherbutton = document.getElementById('otherbutton');
+  t.add_cleanup(() => otherbutton.focus());
+
+  let events = [];
+  const signal = t.get_signal();
+  [target1, target2, target3].forEach(target => {
+    target.addEventListener('interest',(e) => events.push(`${e.source.id} interest`),{signal});
+    target.addEventListener('loseinterest',(e) => events.push(`${e.source.id} loseinterest`),{signal});
+    // These loseinterest events should not be cancelable:
+    target.addEventListener('loseinterest',(e) => e.preventDefault(),{signal});
+  });
+
+  // Invoke them in non-tree order:
+  await focusOn(invoker1);
+  await focusOn(invoker3);
+  await focusOn(invoker2);
+  assert_array_equals(events,
+    ['esc_invoker1 interest','esc_invoker3 interest','esc_invoker2 interest'],
+    'Events after gaining interest');
+  events = [];
+
+  // Hit ESC once, while focused on the body
+  document.body.focus();
+  await waitForRender();
+  assert_true(invoker1.matches(':interest-source'), 'invoker1 should still have interest');
+  assert_true(invoker3.matches(':interest-source'), 'invoker3 should still have interest');
+  assert_true(invoker2.matches(':interest-source'), 'invoker2 should still have interest');
+  const kEscape = '\uE00C';
+  await new test_driver.Actions()
+    .keyDown(kEscape)
+    .keyUp(kEscape)
+    .send();
+  await waitForRender();
+  assert_false(invoker2.matches(':interest-source'), 'invoker2 should lose interest');
+  assert_false(invoker1.matches(':interest-source'), 'invoker1 should lose interest');
+  assert_false(invoker3.matches(':interest-source'), 'invoker3 should lose interest');
+  assert_array_equals(events, [
+    'esc_invoker2 loseinterest', 'esc_invoker3 loseinterest', 'esc_invoker1 loseinterest'],
+    'ESC should lose interest in all invokers, in reverse order');
+}, 'ESC key dismisses all interest invokers');
+</script>
diff --git a/tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-keyboard-invalidation-ref.html b/tests/wpt/tests/html/semantics/interestfor/interestfor-keyboard-invalidation-ref.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-keyboard-invalidation-ref.html
rename to tests/wpt/tests/html/semantics/interestfor/interestfor-keyboard-invalidation-ref.html
diff --git a/tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-keyboard-invalidation.tentative.html b/tests/wpt/tests/html/semantics/interestfor/interestfor-keyboard-invalidation.tentative.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-keyboard-invalidation.tentative.html
rename to tests/wpt/tests/html/semantics/interestfor/interestfor-keyboard-invalidation.tentative.html
diff --git a/tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-on-popover-behavior.tentative.html b/tests/wpt/tests/html/semantics/interestfor/interestfor-on-popover-behavior.tentative.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-on-popover-behavior.tentative.html
rename to tests/wpt/tests/html/semantics/interestfor/interestfor-on-popover-behavior.tentative.html
diff --git a/tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-plain-inline-element.tentative.html b/tests/wpt/tests/html/semantics/interestfor/interestfor-plain-inline-element.tentative.html
similarity index 93%
rename from tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-plain-inline-element.tentative.html
rename to tests/wpt/tests/html/semantics/interestfor/interestfor-plain-inline-element.tentative.html
index c08a1673baa..b5ac789c192 100644
--- a/tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-plain-inline-element.tentative.html
+++ b/tests/wpt/tests/html/semantics/interestfor/interestfor-plain-inline-element.tentative.html
@@ -3,7 +3,7 @@
   <link rel="help" href="https://open-ui.org/components/interest-invokers.explainer">
   <link rel="help" href="https://issues.chromium.org/issues/393408577">
   <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
-  <link rel="match" href="../../../../css/reference/ref-filled-green-100px-square.xht">
+  <link rel="match" href="../../../css/reference/ref-filled-green-100px-square.xht">
   <meta name="flags" content="ahem">
   <style>
     a:link {
diff --git a/tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-pseudo-classes.tentative.html b/tests/wpt/tests/html/semantics/interestfor/interestfor-pseudo-classes.tentative.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-pseudo-classes.tentative.html
rename to tests/wpt/tests/html/semantics/interestfor/interestfor-pseudo-classes.tentative.html
diff --git a/tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-pseudo-element-appearance-ref.html b/tests/wpt/tests/html/semantics/interestfor/interestfor-pseudo-element-appearance-ref.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-pseudo-element-appearance-ref.html
rename to tests/wpt/tests/html/semantics/interestfor/interestfor-pseudo-element-appearance-ref.html
diff --git a/tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-pseudo-element-appearance.tentative.html b/tests/wpt/tests/html/semantics/interestfor/interestfor-pseudo-element-appearance.tentative.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-pseudo-element-appearance.tentative.html
rename to tests/wpt/tests/html/semantics/interestfor/interestfor-pseudo-element-appearance.tentative.html
diff --git a/tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-pseudo-element.tentative.html b/tests/wpt/tests/html/semantics/interestfor/interestfor-pseudo-element.tentative.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-pseudo-element.tentative.html
rename to tests/wpt/tests/html/semantics/interestfor/interestfor-pseudo-element.tentative.html
diff --git a/tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-show-delay.tentative.html b/tests/wpt/tests/html/semantics/interestfor/interestfor-show-delay.tentative.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-show-delay.tentative.html
rename to tests/wpt/tests/html/semantics/interestfor/interestfor-show-delay.tentative.html
diff --git a/tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-svg-a-event-dispatch.tentative.html b/tests/wpt/tests/html/semantics/interestfor/interestfor-svg-a-event-dispatch.tentative.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-svg-a-event-dispatch.tentative.html
rename to tests/wpt/tests/html/semantics/interestfor/interestfor-svg-a-event-dispatch.tentative.html
diff --git a/tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-user-select.tentative.html b/tests/wpt/tests/html/semantics/interestfor/interestfor-user-select.tentative.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/the-button-element/interest-for/interestfor-user-select.tentative.html
rename to tests/wpt/tests/html/semantics/interestfor/interestfor-user-select.tentative.html
diff --git a/tests/wpt/tests/html/semantics/the-button-element/interest-for/resources/invoker-utils.js b/tests/wpt/tests/html/semantics/interestfor/resources/invoker-utils.js
similarity index 100%
rename from tests/wpt/tests/html/semantics/the-button-element/interest-for/resources/invoker-utils.js
rename to tests/wpt/tests/html/semantics/interestfor/resources/invoker-utils.js
diff --git a/tests/wpt/tests/html/semantics/popovers/popover-focus-5.html b/tests/wpt/tests/html/semantics/popovers/popover-focus-5.html
new file mode 100644
index 00000000000..59fd4d87a5c
--- /dev/null
+++ b/tests/wpt/tests/html/semantics/popovers/popover-focus-5.html
@@ -0,0 +1,263 @@
+<!doctype html>
+<meta charset="utf-8" />
+<title>Popover focus behaviors in slot elements</title>
+<meta name="timeout" content="long" />
+<link rel="author" title="Keith Cirkel" href="mailto:wpt@keithcirkel.co.uk" />
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/resources/testdriver.js"></script>
+<script src="/resources/testdriver-actions.js"></script>
+<script src="/resources/testdriver-vendor.js"></script>
+<script src="resources/popover-utils.js"></script>
+
+<meta name="variant" content="?commandforelement" />
+<meta name="variant" content="?popovertargetelement" />
+<meta name="variant" content="?commandfor" />
+<meta name="variant" content="?imperative" />
+
+<div data-candidate="form controls inside" data-count="2">
+  <button tabindex="0" command="toggle-popover">Toggle popover</button>
+  <div popover id="popover1">
+    <input tabindex="0" type="text" data-expected="1" />
+    <input tabindex="0" type="text" data-expected="2" />
+    <button tabindex="0" command="hide-popover" data-expected="close">
+      Close popover
+    </button>
+  </div>
+</div>
+<button tabindex="0" data-expected="after">
+  This button is where focus should land after traversing this popover
+</button>
+
+<div data-candidate="a details element inside" data-count="1">
+  <button tabindex="0" command="toggle-popover">Toggle popover</button>
+  <div popover id="popover2">
+    <details data-expected="1">
+      <summary tabindex="0">A details element</summary>
+    </details>
+    <button tabindex="0" command="hide-popover" data-expected="close">
+      Close popover
+    </button>
+  </div>
+</div>
+<button tabindex="0" data-expected="after">
+  This button is where focus should land after traversing this popover
+</button>
+
+<div
+  data-candidate="a details element inside, and the after button adjacent to invoker"
+  data-count="1"
+>
+  <button tabindex="0" command="toggle-popover">Toggle popover</button>
+  <button tabindex="0" data-expected="after">
+    This button is where focus should land after traversing this popover
+  </button>
+  <div popover id="popover3">
+    <details data-expected="1">A details element</details>
+    <button tabindex="0" command="hide-popover" data-expected="close">
+      Close popover
+    </button>
+  </div>
+</div>
+
+<div
+  data-candidate="a custom-element with delegatesfocus inside"
+  data-count="1"
+>
+  <button tabindex="0" command="toggle-popover">Toggle popover</button>
+  <div popover id="popover4">
+    <my-element data-expected="1">
+      <template shadowrootmode="open" delegatesfocus>
+        <button tabindex="0"></button>
+      </template>
+    </my-element>
+    <button tabindex="0" command="hide-popover" data-expected="close">
+      Close popover
+    </button>
+  </div>
+</div>
+<button tabindex="0" data-expected="after">
+  This button is where focus should land after traversing popover
+</button>
+
+<div
+  data-candidate="a custom-element with a slotted button inside"
+  data-count="1"
+>
+  <button tabindex="0" command="toggle-popover">Toggle popover</button>
+  <div popover id="popover5">
+    <my-element>
+      <template shadowrootmode="open">
+        <slot></slot>
+      </template>
+      <button tabindex="0" data-expected="1"></button>
+    </my-element>
+    <button tabindex="0" command="hide-popover" data-expected="close">
+      Close popover
+    </button>
+  </div>
+</div>
+<button tabindex="0" data-expected="after">
+  This button is where focus should land after traversing popover
+</button>
+
+<div
+  data-candidate="custom-element with a slotted button, followed by a details element, where the after button is adjacent to the invoker"
+  data-count="2"
+>
+  <button tabindex="0" command="toggle-popover">Toggle popover</button>
+  <button tabindex="0" data-expected="after">
+    This button is where focus should land after traversing popover
+  </button>
+  <div popover id="popover6">
+    <my-element>
+      <template shadowrootmode="open">
+        <slot></slot>
+        <details data-expected="2">
+          <summary tabindex="0">A details element</summary>
+        </details>
+      </template>
+      <button tabindex="0" data-expected="1"></button>
+    </my-element>
+    <button tabindex="0" command="hide-popover" data-expected="close">
+      Close popover
+    </button>
+  </div>
+</div>
+
+<script>
+  async function testCandidate(el, style, signal) {
+    const count = parseInt(el.getAttribute("data-count"));
+    const invoker = el.querySelector("button:first-child");
+    const popover = el.querySelector("[popover]");
+    const popoverClose = el.querySelector('[data-expected="close"]');
+    assert_greater_than_equal(count, 0, "test candidate had an invalid count");
+    assert_not_equals(
+      invoker,
+      null,
+      "could not find invoker in test candidate",
+    );
+    assert_not_equals(
+      popover,
+      null,
+      "could not find popover in test candidate",
+    );
+    assert_not_equals(
+      popoverClose,
+      null,
+      "could not find popover close button in test candidate",
+    );
+    switch (style) {
+      case "popovertarget":
+        invoker.setAttribute("popovertarget", popover.id);
+        popoverClose.setAttribute("popovertarget", popover.id);
+        break;
+      case "popovertargetelement":
+        invoker.popoverTargetElement = popover;
+        popoverClose.popoverTargetElement = popover;
+        break;
+      case "commandfor":
+        invoker.setAttribute("commandfor", popover.id);
+        popoverClose.setAttribute("commandfor", popover.id);
+        break;
+      case "commandforelement":
+        invoker.commandForElement = popover;
+        popoverClose.commandForElement = popover;
+        break;
+      case "imperative":
+        invoker.addEventListener(
+          "click",
+          () => {
+            popover.togglePopover({ source: invoker });
+          },
+          { signal },
+        );
+        popoverClose.addEventListener(
+          "click",
+          () => {
+            popover.hidePopover({ source: invoker });
+          },
+          { signal },
+        );
+        break;
+      default:
+        assert_unreached();
+    }
+    invoker.focus();
+    assert_equals(document.activeElement, invoker);
+    invoker.click();
+    assert_true(
+      popover.matches(":popover-open"),
+      "popover should be invoked by invoker",
+    );
+    assert_equals(
+      document.activeElement,
+      invoker,
+      "invoker should still be focused",
+    );
+    for (let i = 1; i <= count; i += 1) {
+      await sendTab();
+      assert_equals(
+        document.activeElement?.getAttribute("data-expected"),
+        String(i),
+        `tab press should move to active element ${i}`,
+      );
+    }
+    await sendTab();
+    assert_equals(
+      document.activeElement?.getAttribute("data-expected"),
+      "close",
+      "tab press should move to close popover button",
+    );
+    await sendShiftTab();
+    assert_equals(
+      document.activeElement?.getAttribute("data-expected"),
+      String(count),
+      "shift+tab should move back to last active element",
+    );
+    await sendTab();
+    assert_equals(
+      document.activeElement,
+      popoverClose,
+      "tab should move forward to re-land on close popover again",
+    );
+    await sendTab();
+    assert_equals(
+      document.activeElement?.getAttribute("data-expected"),
+      "after",
+      "tab should move forward to land on the button after the popover contents",
+    );
+    await sendShiftTab();
+    popoverClose.click();
+    assert_equals(
+      document.activeElement,
+      invoker,
+      "popover now closed - focus should have returned to initial invoker",
+    );
+  }
+
+  const style = window.location.search.substring(1) || "popovertarget";
+  for (const candidate of document.querySelectorAll("[data-candidate]")) {
+    promise_test(
+      async (t) => {
+        const controller = new AbortController();
+        t.add_cleanup(() => {
+          controller.abort();
+          for (const el of document.querySelectorAll(
+            ":is([popovertarget],[commandfor],[disabled],[tabindex])",
+          )) {
+            el.removeAttribute("popovertarget");
+            el.removeAttribute("commandfor");
+            el.removeAttribute("disabled");
+            el.removeAttribute("tabindex");
+          }
+          for (const el of document.querySelectorAll(":popover-open")) {
+            el.hidePopover();
+          }
+        });
+        await testCandidate(candidate, style);
+      },
+      `Focusing elements inside a popover with ${candidate.getAttribute("data-candidate")}, using ${style}`,
+    );
+  }
+</script>
diff --git a/tests/wpt/tests/html/semantics/scripting-1/the-script-element/module/modulepreload-cross-origin-referrerpolicy.sub.html b/tests/wpt/tests/html/semantics/scripting-1/the-script-element/module/modulepreload-cross-origin-referrerpolicy.sub.html
new file mode 100644
index 00000000000..2d914f3d996
--- /dev/null
+++ b/tests/wpt/tests/html/semantics/scripting-1/the-script-element/module/modulepreload-cross-origin-referrerpolicy.sub.html
@@ -0,0 +1,96 @@
+<!DOCTYPE html>
+<html>
+<head>
+<title>Modulepreload Cross-Origin Referrer Policy Tests</title>
+<meta name="author" title="Google" href="https://www.google.com/">
+<link rel="help" href="https://html.spec.whatwg.org/multipage/links.html#link-type-modulepreload">
+<link rel="help" href="https://w3c.github.io/webappsec-referrer-policy/">
+<meta name="assert" content="link rel=modulepreload respects the referrerpolicy attribute for cross-origin requests">
+<!--
+  This test verifies that modulepreload correctly handles various referrer policies
+  for cross-origin requests. It tests all standard referrer policy values:
+  - no-referrer
+  - origin
+  - same-origin
+  - strict-origin
+  - strict-origin-when-cross-origin
+  - unsafe-url
+
+  It also tests that modulepreload respects the document's default referrer policy.
+
+  Each policy is tested by creating a modulepreload link with CORS enabled and the
+  specific policy, then verifying the referrer header that was sent when requesting
+  the resource from another origin.
+-->
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/common/security-features/resources/common.sub.js"></script>
+<script>
+// This test is more of a basic verification that the modulepreload element
+// correctly handles cross-origin requests with referrer policies, rather than
+// a comprehensive test of all referrer policy values. Those are tested more
+// thoroughly in the standard WPT referrer-policy tests.
+
+setup({
+  // Allow more time for cross-origin tests
+  explicit_timeout: true,
+  single_test: false
+});
+
+// Helper function to create a modulepreload element
+function createModulePreload(url, referrerPolicy = null) {
+  const link = document.createElement('link');
+  link.rel = 'modulepreload';
+  link.href = url;
+  link.crossOrigin = 'anonymous'; // Enable CORS
+
+  if (referrerPolicy !== null) {
+    link.referrerPolicy = referrerPolicy;
+  }
+
+  return link;
+}
+
+// Helper function to test a modulepreload element with a specific referrer policy
+function testModulePreloadWithPolicy(policy, testName) {
+  promise_test(async t => {
+    // Set a timeout for this test
+    t.step_timeout(() => {
+      assert_unreached("Test timed out");
+    }, 10000);
+
+    return new Promise((resolve, reject) => {
+      const link = createModulePreload(
+        `https://{{domains[www1]}}:{{ports[https][0]}}/common/security-features/subresource/script.py`,
+        policy
+      );
+
+      link.onload = () => {
+        // If we got here, the load succeeded, which is what we want to verify
+        assert_true(true, "Cross-origin modulepreload with " + policy + " policy loaded successfully");
+        resolve();
+      };
+
+      link.onerror = () => {
+        reject(new Error("Failed to load cross-origin modulepreload with " + policy + " policy"));
+      };
+
+      document.head.appendChild(link);
+    });
+  }, testName);
+}
+
+// Test basic cross-origin cases with different referrer policies
+testModulePreloadWithPolicy(null, "Cross-origin modulepreload with default referrer policy should load");
+testModulePreloadWithPolicy("no-referrer", "Cross-origin modulepreload with no-referrer policy should load");
+testModulePreloadWithPolicy("origin", "Cross-origin modulepreload with origin policy should load");
+testModulePreloadWithPolicy("same-origin", "Cross-origin modulepreload with same-origin policy should load");
+testModulePreloadWithPolicy("strict-origin", "Cross-origin modulepreload with strict-origin policy should load");
+testModulePreloadWithPolicy("strict-origin-when-cross-origin", "Cross-origin modulepreload with strict-origin-when-cross-origin policy should load");
+testModulePreloadWithPolicy("unsafe-url", "Cross-origin modulepreload with unsafe-url policy should load");
+</script>
+</head>
+<body>
+<div id="log"></div>
+</body>
+</html>
\ No newline at end of file
diff --git a/tests/wpt/tests/html/semantics/scripting-1/the-script-element/module/modulepreload-inline-referrerpolicy.html b/tests/wpt/tests/html/semantics/scripting-1/the-script-element/module/modulepreload-inline-referrerpolicy.html
new file mode 100644
index 00000000000..6a743e53f62
--- /dev/null
+++ b/tests/wpt/tests/html/semantics/scripting-1/the-script-element/module/modulepreload-inline-referrerpolicy.html
@@ -0,0 +1,88 @@
+<!DOCTYPE html>
+<html>
+<head>
+<title>Modulepreload Inline Referrer Policy Tests</title>
+<meta name="author" title="Google" href="https://www.google.com/">
+<link rel="help" href="https://html.spec.whatwg.org/multipage/links.html#link-type-modulepreload">
+<link rel="help" href="https://w3c.github.io/webappsec-referrer-policy/">
+<meta name="assert" content="link rel=modulepreload respects the referrerpolicy attribute on inline elements">
+<!--
+  This test verifies that inline modulepreload elements (statically declared in HTML)
+  correctly handle referrer policies. It tests:
+
+  1. Default behavior (no referrerpolicy attribute) - should use origin or full URL depending on implementation
+  2. origin referrerpolicy - should use only origin
+  3. no-referrer referrerpolicy - should not send referrer
+  4. Document-level referrer policy (via meta tag) - should be respected
+
+  Unlike the other modulepreload referrer tests that create elements dynamically,
+  this test uses inline link elements in the HTML.
+-->
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script>
+// Initialize the window.referrers object that will be used by echo-referrer.py
+window.referrers = {};
+
+// Create unique IDs for each test
+const noReferrerPolicyId = Date.now();
+const originPolicyId = Date.now() + 1;
+const noReferrerId = Date.now() + 2;
+const originId = Date.now() + 3;
+</script>
+
+<!-- Test with no referrerpolicy attribute (should use document default) -->
+<link rel="modulepreload" href="/preload/resources/echo-referrer.py?uid=NOPOLICY_ID">
+
+<!-- Test with origin referrerpolicy attribute -->
+<link rel="modulepreload" href="/preload/resources/echo-referrer.py?uid=ORIGIN_ID" referrerpolicy="origin">
+
+<!-- Test with no-referrer referrerpolicy attribute -->
+<link rel="modulepreload" href="/preload/resources/echo-referrer.py?uid=NOREFERRER_ID" referrerpolicy="no-referrer">
+
+<!-- For document policy test, add meta tag for origin referrer policy -->
+<meta name="referrer" content="origin">
+<link rel="modulepreload" href="/preload/resources/echo-referrer.py?uid=DOC_POLICY_ID">
+
+<script>
+// Replace placeholder IDs with actual IDs in the HTML
+document.documentElement.innerHTML = document.documentElement.innerHTML
+  .replace('NOPOLICY_ID', noReferrerPolicyId)
+  .replace('ORIGIN_ID', originPolicyId)
+  .replace('NOREFERRER_ID', noReferrerId)
+  .replace('DOC_POLICY_ID', originId);
+</script>
+</head>
+<body>
+<script>
+// Ensure modules are loaded by importing them
+promise_test(async t => {
+  await Promise.all([
+    import(`/preload/resources/echo-referrer.py?uid=${noReferrerPolicyId}`),
+    import(`/preload/resources/echo-referrer.py?uid=${originPolicyId}`),
+    import(`/preload/resources/echo-referrer.py?uid=${noReferrerId}`),
+    import(`/preload/resources/echo-referrer.py?uid=${originId}`)
+  ]);
+
+  // Test that module with no specified referrerpolicy
+  // Note: Some implementations may send only origin for inline modulepreload requests
+  const expectedDefault = location.origin + "/";
+  assert_equals(window.referrers[noReferrerPolicyId], expectedDefault,
+    "Modulepreload with no referrerpolicy should use expected referrer");
+
+  // Test that module with origin referrerpolicy sends only origin
+  assert_equals(window.referrers[originPolicyId], location.origin + "/",
+    "Modulepreload with origin referrerpolicy should send origin only");
+
+  // Test that module with no-referrer policy sends no referrer
+  assert_equals(window.referrers[noReferrerId], "",
+    "Modulepreload with no-referrer referrerpolicy should not send referrer");
+
+  // Test that module with no policy but document policy uses document policy
+  assert_equals(window.referrers[originId], location.origin + "/",
+    "Modulepreload with no referrerpolicy should use document's policy");
+
+}, "Inline modulepreload elements should respect the referrerpolicy attribute");
+</script>
+</body>
+</html>
\ No newline at end of file
diff --git a/tests/wpt/tests/html/semantics/scripting-1/the-script-element/module/modulepreload-referrer-check.html b/tests/wpt/tests/html/semantics/scripting-1/the-script-element/module/modulepreload-referrer-check.html
new file mode 100644
index 00000000000..4d422e797e7
--- /dev/null
+++ b/tests/wpt/tests/html/semantics/scripting-1/the-script-element/module/modulepreload-referrer-check.html
@@ -0,0 +1,49 @@
+<!DOCTYPE html>
+<html>
+<head>
+<title>Modulepreload Referrer Header Check</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script>
+// Initialize the window.referrers object that will be used by echo-referrer.py
+window.referrers = {};
+</script>
+</head>
+<body>
+<iframe id="test-frame"></iframe>
+
+<script>
+// This test uses a simple approach to check if modulepreload sends a referrer header
+promise_test(async t => {
+  const importId = Date.now();
+  const preloadId = Date.now() + 1;
+
+  // Import will set window.referrers[importId] to the referrer value
+  await import(`/preload/resources/echo-referrer.py?uid=${importId}`);
+
+  const link = document.createElement('link');
+  link.rel = 'modulepreload';
+  link.href = `/preload/resources/echo-referrer.py?uid=${preloadId}`;
+
+  // Wait for the preload to complete using onload event
+  const preloadComplete = new Promise(resolve => {
+    link.onload = resolve;
+    link.onerror = () => {
+      assert_unreached("Modulepreload failed to load");
+    };
+  });
+
+  document.head.appendChild(link);
+  await preloadComplete;
+
+  // Second import ensures the module is loaded and referrer is recorded
+  await import(`/preload/resources/echo-referrer.py?uid=${preloadId}`);
+
+  // Check if referrers were recorded in the global window.referrers object
+  assert_equals(window.referrers[importId], location.href, "Dynamic import should have a referrer header");
+  assert_equals(window.referrers[preloadId], location.href, "Modulepreload should have a referrer header");
+
+}, "Modulepreload should send a referrer header");
+</script>
+</body>
+</html>
\ No newline at end of file
diff --git a/tests/wpt/tests/html/semantics/scripting-1/the-script-element/module/modulepreload-referrerpolicy.html b/tests/wpt/tests/html/semantics/scripting-1/the-script-element/module/modulepreload-referrerpolicy.html
new file mode 100644
index 00000000000..061f076bab3
--- /dev/null
+++ b/tests/wpt/tests/html/semantics/scripting-1/the-script-element/module/modulepreload-referrerpolicy.html
@@ -0,0 +1,200 @@
+<!DOCTYPE html>
+<html>
+<head>
+<title>Modulepreload Referrer Policy Tests</title>
+<meta name="author" title="Google" href="https://www.google.com/">
+<link rel="help" href="https://html.spec.whatwg.org/multipage/links.html#link-type-modulepreload">
+<link rel="help" href="https://w3c.github.io/webappsec-referrer-policy/">
+<meta name="assert" content="link rel=modulepreload respects the referrerpolicy attribute">
+<!--
+  This test verifies that modulepreload correctly handles various referrer policies
+  for same-origin requests. It tests all standard referrer policy values:
+  - no-referrer
+  - origin
+  - same-origin
+  - strict-origin
+  - strict-origin-when-cross-origin
+  - unsafe-url
+  Each policy is tested by creating a modulepreload link dynamically with the
+  specific policy and verifying the referrer header that was sent.
+-->
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script>
+// Initialize the window.referrers object that will be used by echo-referrer.py
+window.referrers = {};
+</script>
+</head>
+<body>
+<script>
+// Helper function to create a unique ID for each test
+function generateUniqueId() {
+  return Date.now() + Math.floor(Math.random() * 1000);
+}
+
+// Helper function to create a modulepreload element with a given referrer policy
+function createModulePreload(url, referrerPolicy = null) {
+  const link = document.createElement('link');
+  link.rel = 'modulepreload';
+  link.href = url;
+
+  if (referrerPolicy !== null) {
+    link.referrerPolicy = referrerPolicy;
+  }
+
+  return link;
+}
+
+// Helper function to wait for preload completion
+function waitForPreload(link) {
+  return new Promise((resolve, reject) => {
+    link.onload = resolve;
+    link.onerror = () => reject(new Error("Modulepreload failed to load"));
+  });
+}
+
+// Test default referrer policy behavior
+promise_test(async t => {
+  const uid = generateUniqueId();
+  const url = `/preload/resources/echo-referrer.py?uid=${uid}`;
+
+  // First import to establish baseline
+  await import(url);
+
+  // Create modulepreload
+  const link = createModulePreload(url);
+  const preloadComplete = waitForPreload(link);
+
+  document.head.appendChild(link);
+  await preloadComplete;
+
+  // Import again to ensure the module is loaded
+  await import(url);
+
+  // Check if referrer was sent
+  assert_equals(window.referrers[uid], location.href, "Modulepreload should use default referrer policy");
+
+}, "Modulepreload should use default referrer policy");
+
+// Test explicit no-referrer policy
+promise_test(async t => {
+  const uid = generateUniqueId();
+  const url = `/preload/resources/echo-referrer.py?uid=${uid}`;
+
+  // Create modulepreload with no-referrer policy
+  const link = createModulePreload(url, 'no-referrer');
+  const preloadComplete = waitForPreload(link);
+
+  document.head.appendChild(link);
+  await preloadComplete;
+
+  // Import again to ensure the module is loaded
+  await import(url);
+
+  // Check if referrer was NOT sent
+  assert_equals(window.referrers[uid], "", "Modulepreload with no-referrer policy should not send referrer");
+
+}, "Modulepreload with no-referrer policy should not send referrer");
+
+// Test origin referrer policy
+promise_test(async t => {
+  const uid = generateUniqueId();
+  const url = `/preload/resources/echo-referrer.py?uid=${uid}`;
+
+  // Create modulepreload with origin policy
+  const link = createModulePreload(url, 'origin');
+  const preloadComplete = waitForPreload(link);
+
+  document.head.appendChild(link);
+  await preloadComplete;
+
+  // Import again to ensure the module is loaded
+  await import(url);
+
+  // Check if origin-only referrer was sent
+  assert_equals(window.referrers[uid], location.origin + "/", "Modulepreload with origin policy should send origin-only referrer");
+
+}, "Modulepreload with origin policy should send origin-only referrer");
+
+// Test same-origin referrer policy
+promise_test(async t => {
+  const uid = generateUniqueId();
+  const url = `/preload/resources/echo-referrer.py?uid=${uid}`;
+
+  // Create modulepreload with same-origin policy
+  const link = createModulePreload(url, 'same-origin');
+  const preloadComplete = waitForPreload(link);
+
+  document.head.appendChild(link);
+  await preloadComplete;
+
+  // Import again to ensure the module is loaded
+  await import(url);
+
+  // Check if full referrer was sent (for same-origin requests)
+  assert_equals(window.referrers[uid], location.href, "Modulepreload with same-origin policy should send full referrer for same-origin requests");
+
+}, "Modulepreload with same-origin policy should send full referrer for same-origin requests");
+
+// Test strict-origin referrer policy
+promise_test(async t => {
+  const uid = generateUniqueId();
+  const url = `/preload/resources/echo-referrer.py?uid=${uid}`;
+
+  // Create modulepreload with strict-origin policy
+  const link = createModulePreload(url, 'strict-origin');
+  const preloadComplete = waitForPreload(link);
+
+  document.head.appendChild(link);
+  await preloadComplete;
+
+  // Import again to ensure the module is loaded
+  await import(url);
+
+  // Check if origin-only referrer was sent
+  assert_equals(window.referrers[uid], location.origin + "/", "Modulepreload with strict-origin policy should send origin-only referrer");
+
+}, "Modulepreload with strict-origin policy should send origin-only referrer");
+
+// Test strict-origin-when-cross-origin referrer policy
+promise_test(async t => {
+  const uid = generateUniqueId();
+  const url = `/preload/resources/echo-referrer.py?uid=${uid}`;
+
+  // Create modulepreload with strict-origin-when-cross-origin policy
+  const link = createModulePreload(url, 'strict-origin-when-cross-origin');
+  const preloadComplete = waitForPreload(link);
+
+  document.head.appendChild(link);
+  await preloadComplete;
+
+  // Import again to ensure the module is loaded
+  await import(url);
+
+  // For same-origin requests, full URL should be sent
+  assert_equals(window.referrers[uid], location.href, "Modulepreload with strict-origin-when-cross-origin policy should send full referrer for same-origin requests");
+
+}, "Modulepreload with strict-origin-when-cross-origin policy should send full referrer for same-origin requests");
+
+// Test unsafe-url referrer policy
+promise_test(async t => {
+  const uid = generateUniqueId();
+  const url = `/preload/resources/echo-referrer.py?uid=${uid}`;
+
+  // Create modulepreload with unsafe-url policy
+  const link = createModulePreload(url, 'unsafe-url');
+  const preloadComplete = waitForPreload(link);
+
+  document.head.appendChild(link);
+  await preloadComplete;
+
+  // Import again to ensure the module is loaded
+  await import(url);
+
+  // Check if full referrer was sent
+  assert_equals(window.referrers[uid], location.href, "Modulepreload with unsafe-url policy should send full referrer");
+
+}, "Modulepreload with unsafe-url policy should send full referrer");
+</script>
+</body>
+</html>
\ No newline at end of file
diff --git a/tests/wpt/tests/html/semantics/the-button-element/command-and-commandfor/source-attribute-retargeting.tentative.html b/tests/wpt/tests/html/semantics/the-button-element/command-and-commandfor/source-attribute-retargeting.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/the-button-element/command-and-commandfor/source-attribute-retargeting.tentative.html
rename to tests/wpt/tests/html/semantics/the-button-element/command-and-commandfor/source-attribute-retargeting.html
diff --git a/tests/wpt/tests/html/webappapis/scripting/events/event-handler-idl-attribute-realm.window.js b/tests/wpt/tests/html/webappapis/scripting/events/event-handler-idl-attribute-realm.window.js
new file mode 100644
index 00000000000..710feea2cbd
--- /dev/null
+++ b/tests/wpt/tests/html/webappapis/scripting/events/event-handler-idl-attribute-realm.window.js
@@ -0,0 +1,59 @@
+setup({ allow_uncaught_exception: true });
+
+test(t => {
+  document.body.append(document.createElement("iframe"), document.createElement("iframe"));
+  t.add_cleanup(() => document.querySelectorAll("iframe").forEach(iframe => iframe.remove()));
+
+  const frame0Document = frames[0].document.documentElement;
+  const frame1Body = frames[1].document.body;
+
+  frame1Body.setAttribute("onclick", "void(0)");
+  frame0Document.appendChild(frame1Body);
+  const get = Object.getOwnPropertyDescriptor(HTMLElement.prototype, "onclick").get;
+  const f = get.call(frame1Body);
+
+  assert_equals(f.constructor, frames[0].Function, "The function must be created in the element's document's global");
+}, "Event handler IDL attributes must return a function from the element's document's realm");
+
+test(t => {
+  document.body.append(document.createElement("iframe"), document.createElement("iframe"));
+  t.add_cleanup(() => document.querySelectorAll("iframe").forEach(iframe => iframe.remove()));
+
+  const log = [];
+  window.addEventListener("error", t.step_func(e => {
+    log.push("error event in top / error object realm = " + getErrorRealm(e));
+  }, { signal: t.get_signal() }));
+  frames[0].addEventListener("error", t.step_func(e => {
+    log.push("error event in frames[0] / error object realm = " + getErrorRealm(e));
+  }, { signal: t.get_signal() }));
+  frames[1].addEventListener("error", t.step_func(e => {
+    log.push("error event in frames[1] / error object realm = " + getErrorRealm(e));
+  }, { signal: t.get_signal() }));
+
+  const frame0Document = frames[0].document.documentElement;
+  const frame1Body = frames[1].document.body;
+
+  frame1Body.setAttribute("onmousedown", "1 *-* 'syntax error'");
+  frame0Document.appendChild(frame1Body);
+
+  assert_array_equals(log, [], "No error events must be fired before calling the getter");
+
+  const get = Object.getOwnPropertyDescriptor(HTMLElement.prototype, "onmousedown").get;
+  const f = get.call(frame1Body);
+
+  assert_array_equals(log, ["error event in frames[0] / error object realm = frames[0]"]);
+  assert_equals(f, null, "The returned value must be null");
+}, "Event handler IDL attribute compilation errors must be fired on the element's document's global");
+
+function getErrorRealm(event) {
+  const { error } = event;
+
+  if (error instanceof SyntaxError) {
+    return "top";
+  } if (error instanceof frames[0].SyntaxError) {
+    return "frames[0]";
+  } if (error instanceof frames[1].SyntaxError) {
+    return "frames[1]";
+  }
+  return "unknown";
+}
diff --git a/tests/wpt/tests/interfaces/css-view-transitions-2.idl b/tests/wpt/tests/interfaces/css-view-transitions-2.idl
deleted file mode 100644
index 09719d647dd..00000000000
--- a/tests/wpt/tests/interfaces/css-view-transitions-2.idl
+++ /dev/null
@@ -1,29 +0,0 @@
-// GENERATED CONTENT - DO NOT EDIT
-// Content was automatically extracted by Reffy into webref
-// (https://github.com/w3c/webref)
-// Source: CSS View Transitions Module Level 2 (https://drafts.csswg.org/css-view-transitions-2/)
-
-[Exposed=Window]
-interface CSSViewTransitionRule : CSSRule {
-  readonly attribute CSSOMString navigation;
-  [SameObject] readonly attribute FrozenArray<CSSOMString> types;
-};
-
-[Exposed=Window]
-interface ViewTransitionTypeSet {
-  setlike<DOMString>;
-};
-
-[Exposed=Window]
-partial interface ViewTransition {
-  attribute ViewTransitionTypeSet types;
-};
-
-dictionary StartViewTransitionOptions {
-  ViewTransitionUpdateCallback? update = null;
-  sequence<DOMString>? types = null;
-};
-
-partial interface Document {
-  ViewTransition startViewTransition(optional (ViewTransitionUpdateCallback or StartViewTransitionOptions) callbackOptions = {});
-};
diff --git a/tests/wpt/tests/interfaces/css-view-transitions.idl b/tests/wpt/tests/interfaces/css-view-transitions.idl
index 275ccf3d6bf..1584977bc47 100644
--- a/tests/wpt/tests/interfaces/css-view-transitions.idl
+++ b/tests/wpt/tests/interfaces/css-view-transitions.idl
@@ -1,14 +1,38 @@
 // GENERATED CONTENT - DO NOT EDIT
 // Content was automatically extracted by Reffy into webref
 // (https://github.com/w3c/webref)
-// Source: CSS View Transitions Module Level 1 (https://drafts.csswg.org/css-view-transitions-1/)
+// Source: CSS View Transitions Module Level 2 (https://drafts.csswg.org/css-view-transitions-2/)
+
+[Exposed=Window]
+interface CSSViewTransitionRule : CSSRule {
+  readonly attribute CSSOMString navigation;
+  [SameObject] readonly attribute FrozenArray<CSSOMString> types;
+};
+
+partial interface Document {
+  ViewTransition startViewTransition(
+    optional (ViewTransitionUpdateCallback or StartViewTransitionOptions) callbackOptions = {}
+  );
+  readonly attribute ViewTransition? activeViewTransition;
+};
 
 callback ViewTransitionUpdateCallback = Promise<any> ();
 
+dictionary StartViewTransitionOptions {
+  ViewTransitionUpdateCallback? update = null;
+  sequence<DOMString>? types = null;
+};
+
 [Exposed=Window]
 interface ViewTransition {
   readonly attribute Promise<undefined> updateCallbackDone;
   readonly attribute Promise<undefined> ready;
   readonly attribute Promise<undefined> finished;
   undefined skipTransition();
+  attribute ViewTransitionTypeSet types;
+};
+
+[Exposed=Window]
+interface ViewTransitionTypeSet {
+  setlike<DOMString>;
 };
diff --git a/tests/wpt/tests/interfaces/private-network-access.idl b/tests/wpt/tests/interfaces/local-network-access.idl
similarity index 55%
rename from tests/wpt/tests/interfaces/private-network-access.idl
rename to tests/wpt/tests/interfaces/local-network-access.idl
index 65b58760228..1074e284bcf 100644
--- a/tests/wpt/tests/interfaces/private-network-access.idl
+++ b/tests/wpt/tests/interfaces/local-network-access.idl
@@ -1,14 +1,9 @@
 // GENERATED CONTENT - DO NOT EDIT
 // Content was automatically extracted by Reffy into webref
 // (https://github.com/w3c/webref)
-// Source: Private Network Access (https://wicg.github.io/private-network-access/)
+// Source: Local Network Access (https://wicg.github.io/local-network-access/)
 
-enum IPAddressSpace { "public", "private", "local" };
-
-dictionary PrivateNetworkAccessPermissionDescriptor
-    : PermissionDescriptor {
-  DOMString id;
-};
+enum IPAddressSpace { "public", "local", "loopback" };
 
 partial dictionary RequestInit {
   IPAddressSpace targetAddressSpace;
diff --git a/tests/wpt/tests/interfaces/web-animations-2.idl b/tests/wpt/tests/interfaces/web-animations-2.idl
index d4d846f015f..af9f16bef35 100644
--- a/tests/wpt/tests/interfaces/web-animations-2.idl
+++ b/tests/wpt/tests/interfaces/web-animations-2.idl
@@ -116,20 +116,16 @@ dictionary AnimationPlaybackEventInit : EventInit {
 
 [Exposed=Window]
 interface AnimationTrigger {
-  readonly attribute AnimationTriggerBehavior behavior;
+  constructor(optional AnimationTriggerOptions options = {});
+  attribute AnimationTimeline timeline;
+  attribute AnimationTriggerBehavior behavior;
+  attribute any rangeStart;
+  attribute any rangeEnd;
+  attribute any exitRangeStart;
+  attribute any exitRangeEnd;
 };
 
-[Exposed=Window]
-interface TimelineTrigger : AnimationTrigger {
-  constructor(optional TimelineTriggerOptions options = {});
-  readonly attribute AnimationTimeline timeline;
-  readonly attribute any rangeStart;
-  readonly attribute any rangeEnd;
-  readonly attribute any exitRangeStart;
-  readonly attribute any exitRangeEnd;
-};
-
-dictionary TimelineTriggerOptions {
+dictionary AnimationTriggerOptions {
   AnimationTimeline? timeline;
   AnimationTriggerBehavior? behavior = "once";
   (TimelineRangeOffset or CSSNumericValue or CSSKeywordValue or DOMString) rangeStart = "normal";
@@ -138,4 +134,17 @@ dictionary TimelineTriggerOptions {
   (TimelineRangeOffset or CSSNumericValue or CSSKeywordValue or DOMString) exitRangeEnd = "auto";
 };
 
+[Exposed=Window]
+interface EventTrigger : AnimationTrigger {
+  constructor(optional EventTriggerOptions options = {});
+  readonly attribute DOMString eventType;
+  readonly attribute EventTarget eventTarget;
+};
+
+dictionary EventTriggerOptions {
+  AnimationTriggerBehavior? behavior = "once";
+  DOMString eventType;
+  EventTarget eventTarget;
+};
+
 enum AnimationTriggerBehavior { "once", "repeat", "alternate", "state" };
diff --git a/tests/wpt/tests/interfaces/webcrypto-modern-algos.idl b/tests/wpt/tests/interfaces/webcrypto-modern-algos.idl
new file mode 100644
index 00000000000..dc2f8427944
--- /dev/null
+++ b/tests/wpt/tests/interfaces/webcrypto-modern-algos.idl
@@ -0,0 +1,108 @@
+// GENERATED CONTENT - DO NOT EDIT
+// Content was automatically extracted by Reffy into webref
+// (https://github.com/w3c/webref)
+// Source: Modern Algorithms in the Web Cryptography API (https://wicg.github.io/webcrypto-modern-algos/)
+
+[SecureContext,Exposed=(Window,Worker)]
+partial interface SubtleCrypto {
+  Promise<EncapsulatedKey> encapsulateKey(
+    AlgorithmIdentifier encapsulationAlgorithm,
+    CryptoKey encapsulationKey,
+    AlgorithmIdentifier sharedKeyAlgorithm,
+    boolean extractable,
+    sequence<KeyUsage> keyUsages
+  );
+  Promise<EncapsulatedBits> encapsulateBits(
+    AlgorithmIdentifier encapsulationAlgorithm,
+    CryptoKey encapsulationKey
+  );
+
+  Promise<CryptoKey> decapsulateKey(
+    AlgorithmIdentifier decapsulationAlgorithm,
+    CryptoKey decapsulationKey,
+    BufferSource ciphertext,
+    AlgorithmIdentifier sharedKeyAlgorithm,
+    boolean extractable,
+    sequence<KeyUsage> keyUsages
+  );
+  Promise<ArrayBuffer> decapsulateBits(
+    AlgorithmIdentifier decapsulationAlgorithm,
+    CryptoKey decapsulationKey,
+    BufferSource ciphertext
+  );
+
+  Promise<CryptoKey> getPublicKey(
+    CryptoKey key,
+    sequence<KeyUsage> keyUsages
+  );
+
+  static boolean supports(DOMString operation,
+                   AlgorithmIdentifier algorithm,
+                   optional unsigned long? length = null);
+  static boolean supports(DOMString operation,
+                   AlgorithmIdentifier algorithm,
+                   AlgorithmIdentifier additionalAlgorithm);
+};
+
+enum KeyFormat { "raw-public", "raw-private", "raw-seed", "raw-secret", "raw", "spki", "pkcs8", "jwk" };
+
+enum KeyUsage { "encrypt", "decrypt", "sign", "verify", "deriveKey", "deriveBits", "wrapKey", "unwrapKey", "encapsulateKey", "encapsulateBits", "decapsulateKey", "decapsulateBits" };
+
+dictionary EncapsulatedKey {
+  CryptoKey sharedKey;
+  ArrayBuffer ciphertext;
+};
+
+dictionary EncapsulatedBits {
+  ArrayBuffer sharedKey;
+  ArrayBuffer ciphertext;
+};
+
+partial dictionary JsonWebKey {
+  // The following fields are defined in draft-ietf-cose-dilithium-07
+  DOMString pub;
+  DOMString priv;
+};
+
+dictionary ContextParams : Algorithm {
+  BufferSource context;
+};
+
+dictionary AeadParams : Algorithm {
+  required BufferSource iv;
+  BufferSource additionalData;
+  [EnforceRange] octet tagLength;
+};
+
+dictionary CShakeParams : Algorithm {
+  required [EnforceRange] unsigned long length;
+  BufferSource functionName;
+  BufferSource customization;
+};
+
+dictionary KmacKeyGenParams : Algorithm {
+  [EnforceRange] unsigned long length;
+};
+
+dictionary KmacImportParams : Algorithm {
+  [EnforceRange] unsigned long length;
+};
+
+dictionary KmacKeyAlgorithm : KeyAlgorithm {
+  required unsigned long length;
+};
+
+dictionary KmacParams : Algorithm {
+  required [EnforceRange] unsigned long length;
+  BufferSource customization;
+};
+
+dictionary Argon2Params : Algorithm {
+  required BufferSource nonce;
+  required [EnforceRange] unsigned long parallelism;
+  required [EnforceRange] unsigned long memory;
+  required [EnforceRange] unsigned long passes;
+  [EnforceRange] octet version;
+  BufferSource secretValue;
+  BufferSource associatedData;
+};
diff --git a/tests/wpt/tests/interfaces/webcrypto.idl b/tests/wpt/tests/interfaces/webcrypto.idl
index 9c742fa9709..ebb9cf5718b 100644
--- a/tests/wpt/tests/interfaces/webcrypto.idl
+++ b/tests/wpt/tests/interfaces/webcrypto.idl
@@ -28,8 +28,6 @@ dictionary KeyAlgorithm {
 
 enum KeyType { "public", "private", "secret" };
 
-enum KeyUsage { "encrypt", "decrypt", "sign", "verify", "deriveKey", "deriveBits", "wrapKey", "unwrapKey" };
-
 [SecureContext,Exposed=(Window,Worker),Serializable]
 interface CryptoKey {
   readonly attribute KeyType type;
@@ -38,8 +36,6 @@ interface CryptoKey {
   readonly attribute object usages;
 };
 
-enum KeyFormat { "raw", "spki", "pkcs8", "jwk" };
-
 [SecureContext,Exposed=(Window,Worker)]
 interface SubtleCrypto {
   Promise<ArrayBuffer> encrypt(
diff --git a/tests/wpt/tests/mathml/presentation-markup/operators/display-operator-min-height-default-font.html b/tests/wpt/tests/mathml/presentation-markup/operators/display-operator-min-height-default-font.html
new file mode 100644
index 00000000000..51ab6148f0d
--- /dev/null
+++ b/tests/wpt/tests/mathml/presentation-markup/operators/display-operator-min-height-default-font.html
@@ -0,0 +1,66 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="utf-8" />
+    <title>DisplayOperatorMinHeight with default font</title>
+    <link
+      rel="help"
+      href="https://w3c.github.io/mathml-core/#layout-of-operators"
+    >
+    <meta
+      name="assert"
+      content="Operators using largeop should be bigger"
+    >
+    <script src="/resources/testharness.js"></script>
+    <script src="/resources/testharnessreport.js"></script>
+    <script src="/mathml/support/feature-detection.js"></script>
+    <script src="/mathml/support/fonts.js"></script>
+
+    <style>
+      math {
+        font-size: 16px;
+      }
+    </style>
+
+    <script>
+      // Small factor to ensure that the largeop version is bigger
+      const delta = 1.2;
+
+      var t = async_test("Operators using largeop should be bigger");
+      window.addEventListener("load", () => {
+        loadAllFonts().then(
+          t.step_func_done(function () {
+            document.querySelectorAll("math").forEach(
+              (math, i) => {
+                children = math.children;
+                regular = children[0].getBoundingClientRect();
+                largeop = children[1].getBoundingClientRect();
+                assert_greater_than(
+                  largeop.height,
+                  regular.height * delta,
+                  `Test ${children[0].textContent}`,
+                );
+              },
+            );
+          }),
+        );
+      });
+    </script>
+  </head>
+
+  <body>
+    <div id="log"></div>
+    <math displaystyle="true">
+      <mo largeop="false">&#x222B;</mo>
+      <mo largeop="true">&#x222B;</mo>
+    </math>
+    <math displaystyle="true">
+      <mo largeop="false">&#x2211;</mo>
+      <mo largeop="true">&#x2211;</mo>
+    </math>
+    <math displaystyle="true">
+      <mo largeop="false">&#x22C1;</mo>
+      <mo largeop="true">&#x22C1;</mo>
+    </math>
+  </body>
+</html>
diff --git a/tests/wpt/tests/mathml/presentation-markup/operators/display-operator-min-height-no-workaround.html b/tests/wpt/tests/mathml/presentation-markup/operators/display-operator-min-height-no-workaround.html
new file mode 100644
index 00000000000..16047a242e8
--- /dev/null
+++ b/tests/wpt/tests/mathml/presentation-markup/operators/display-operator-min-height-no-workaround.html
@@ -0,0 +1,72 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="utf-8" />
+    <title>DisplayOperatorMinHeight with custom font</title>
+    <link
+      rel="help"
+      href="https://w3c.github.io/mathml-core/#layout-of-operators"
+    >
+    <meta
+      name="assert"
+      content="Laying out operators should respect the font's DisplayOperatorMinHeight"
+    >
+    <script src="/resources/testharness.js"></script>
+    <script src="/resources/testharnessreport.js"></script>
+    <script src="/mathml/support/feature-detection.js"></script>
+    <script src="/mathml/support/fonts.js"></script>
+
+    <style>
+      /* This font has a DisplayOperatorMinHeight of 1.25em and two variants of the 0x2AFF
+      character, one with a height of 1.25em and the other with 2em. */
+      @font-face {
+        font-family: largeop-displayoperatorminheight1250;
+        src: url("/fonts/math/largeop-displayoperatorminheight1250.woff");
+      }
+      math {
+        font-family: largeop-displayoperatorminheight1250;
+        font-size: 32px;
+        color: green;
+      }
+      math > mo:first-child {
+        color: blue;
+      }
+    </style>
+
+    <script>
+      const font_size = 32;
+      const small_variant = 1.25 * font_size;
+      // Needs to be less than the difference between the two variants (2em - 1.25em)
+      const epsilon = 0.1 * font_size;
+
+      // Some browser engines had a minimum for DisplayOperatorMinHeight of sqrt(2) times
+      // the base glyph size (~1.41 * 1em in this case).
+      // This test checks that the constant is not modified and the variant measuring 1.25em
+      // is picked instead of the bigger one measuring 2em.
+      var t = async_test("DisplayOperatorMinHeight is not modified");
+      window.addEventListener("load", () => {
+        loadAllFonts().then(
+          t.step_func_done(function () {
+            const math = document.querySelector("math");
+            children = math.children;
+            largeop = children[1].getBoundingClientRect();
+            assert_approx_equals(
+              largeop.height,
+              small_variant,
+              epsilon,
+              "Using the small variant",
+            );
+          }),
+        );
+      });
+    </script>
+  </head>
+
+  <body>
+    <div id="log"></div>
+    <math display="block">
+      <mo largeop="false">&#x2AFF;</mo>
+      <mo largeop="true">&#x2AFF;</mo>
+    </math>
+  </body>
+</html>
diff --git a/tests/wpt/tests/mathml/tools/largeop.py b/tests/wpt/tests/mathml/tools/largeop.py
index 62515751948..a8f30908756 100755
--- a/tests/wpt/tests/mathml/tools/largeop.py
+++ b/tests/wpt/tests/mathml/tools/largeop.py
@@ -81,3 +81,16 @@ f[nAryWhiteVerticalBarCodePoint].verticalComponents = \
      )
 f[nAryWhiteVerticalBarCodePoint].verticalComponentItalicCorrection = v2
 mathfont.save(f)
+
+v1 = int(1.25 * mathfont.em)
+f = mathfont.create("largeop-displayoperatorminheight%d" % v1,
+                    "Copyright (c) 2025 Igalia S.L.")
+f.math.DisplayOperatorMinHeight = v1
+f.math.AxisHeight = int(v1 / 2)
+mathfont.createSquareGlyph(f, nAryWhiteVerticalBarCodePoint)
+g = f.createChar(-1, "uni2AFF.v1")
+mathfont.drawRectangleGlyph(g, mathfont.em, v1, 0)
+g = f.createChar(-1, "uni2AFF.v2")
+mathfont.drawRectangleGlyph(g, mathfont.em, 2 * mathfont.em, 0)
+f[nAryWhiteVerticalBarCodePoint].verticalVariants = "uni2AFF uni2AFF.v1 uni2AFF.v2"
+mathfont.save(f)
diff --git a/tests/wpt/tests/netinfo/META.yml b/tests/wpt/tests/netinfo/META.yml
index 220c5d6d32b..46fc2a8577b 100644
--- a/tests/wpt/tests/netinfo/META.yml
+++ b/tests/wpt/tests/netinfo/META.yml
@@ -2,5 +2,4 @@ spec: https://wicg.github.io/netinfo/
 suggested_reviewers:
   - jkarlin
   - igrigorik
-  - marcoscaceres
   - tarunban
diff --git a/tests/wpt/tests/pointerevents/pointerevent_fractional_coordinates.html b/tests/wpt/tests/pointerevents/pointerevent_fractional_coordinates.html
index 7d18b9f2b77..661b6b676f6 100644
--- a/tests/wpt/tests/pointerevents/pointerevent_fractional_coordinates.html
+++ b/tests/wpt/tests/pointerevents/pointerevent_fractional_coordinates.html
@@ -45,8 +45,8 @@
             }
 
             function checkPointerEventCoordinates(event) {
-              if (event.clientX != Math.floor(event.clientX) ||
-                    event.clientY != Math.floor(event.clientY))
+              if ((event.clientX != Math.floor(event.clientX) || event.clientY != Math.floor(event.clientY))
+                    && (event.pageX != Math.floor(event.pageX) || event.pageY != Math.floor(event.pageY)))
                 eventsWithFractions[event.type] = true;
             }
 
diff --git a/tests/wpt/tests/resource-timing/resources/test-initiator.js b/tests/wpt/tests/resource-timing/resources/test-initiator.js
index c6ad50a9db9..6e13a02f21b 100644
--- a/tests/wpt/tests/resource-timing/resources/test-initiator.js
+++ b/tests/wpt/tests/resource-timing/resources/test-initiator.js
@@ -1,25 +1,38 @@
-if (observe_entry === undefined) {
-  throw new Error("You must include resource-timing/resources/observe-entry.js "
-    + "before including this script.");
+
+const with_timeout_message = async (promise, message, timeout = 1000) => {
+  return Promise.race([
+    promise,
+    new Promise((resolve, reject) => {
+      step_timeout(() => {
+        reject(new Error(message));
+      }, timeout);
+    }),
+  ]);
 }
 
+const observe_entry_no_timeout = entry_name => {
+  const entry = new Promise(resolve => {
+    new PerformanceObserver((entry_list, observer) => {
+      for (const entry of entry_list.getEntries()) {
+        if (entry.name.endsWith(entry_name)) {
+          resolve(entry);
+          observer.disconnect();
+          return;
+        }
+      }
+    }).observe({"type": "resource", "buffered": true});
+  });
+  return entry;
+};
+
 // Asserts that, for the given name, there is/will-be a
 // PerformanceResourceTiming entry that has the given 'initiatorUrl'. The test
 // is labeled according to the given descriptor.
-const initiator_url_test = (resourceName, expectedUrl, descriptor) => {
+const initiator_url_test = (entry_name, expected_url, descriptor, timeout_msg) => {
   promise_test(async () => {
-    const entry = await observe_entry(resourceName);
-    assert_equals(entry.initiatorUrl, expectedUrl);
-  }, `The initiator Url for ${descriptor} must be '${expectedUrl}'`);
+    const promise = observe_entry_no_timeout(entry_name);
+    const entry = await with_timeout_message(promise, timeout_msg, /* timeout = */ 2000);
+    assert_equals(entry.initiatorUrl, expected_url);
+  }, `The initiator Url for ${descriptor} must be '${expected_url}'`);
 };
 
-const initiator_url_doc_write_test = (write_to_doc,
-  resourceName, expectedUrl, descriptor) => {
-  promise_test(async () => {
-    document.open();
-    document.write(write_to_doc);
-    document.close();
-    const entry = await observe_entry(resourceName);
-    assert_equals(entry.initiatorUrl, expectedUrl);
-  }, `The initiator Url for ${descriptor} must be '${expectedUrl}'`);
-};
diff --git a/tests/wpt/tests/resource-timing/tentative/initiator-url/document-initiated.html b/tests/wpt/tests/resource-timing/tentative/initiator-url/document-initiated.html
index 6b192270697..09da30550bd 100644
--- a/tests/wpt/tests/resource-timing/tentative/initiator-url/document-initiated.html
+++ b/tests/wpt/tests/resource-timing/tentative/initiator-url/document-initiated.html
@@ -44,7 +44,14 @@
   <script>
     display_paragraph();
 
-    // Load arbitrary stylesheet with inline script
+    // TODO(crbug.com/40919714): The two elements below are not initiated by html.
+    // They are initiated by script. They should be moved out of this test.
+    // As of 08/2025 the two below are passing for chromium but because of wrong
+    // reasons. They are not recognized to be resources initaited by scripts, so they
+    // are thought to be initiated from main html, for which the url happens to be
+    // correct for inline scripts.
+
+    // Load arbitrary stylesheet with inline script.
     const link = document.createElement("link");
     link.rel = "stylesheet";
     link.href = "../../resources/empty_style.css?inline-script";
@@ -69,27 +76,15 @@
       "Ahem.ttf?initiator-html",
       "blue.png?using-Img-tag",
         /*        "green.html",
-        TODO(guohuideng@microsoft.com): report initiator for iframe element.
+        TODO(crbug.com/40919714): report initiator for iframe element.
         */
       "empty_style.css?inline-script",
       "blue.png?inline-script",
     ];
     for (const resource of resources) {
-      initiator_url_test(resource, expectedInitiatorUrl, resource+" initiatorUrl from document-initiated");
+      initiator_url_test(resource, expectedInitiatorUrl, resource+
+        " initiatorUrl from document-initiated", resource+" timeout");
     }
 
-    write_to_doc = '<img id="img_written" src="/images/blue.png?inline-script-doc-write">';
-    resource = "blue.png?inline-script-doc-write";
-    initiator_url_doc_write_test(write_to_doc, resource, expectedInitiatorUrl,
-      resource+" initiatorUrl from document-initiated");
-
-    write_to_doc = '<link id="css_written" rel="stylesheet" href="../../resources/empty_style.css?inline-script-doc-write">';
-    resource = "empty_style.css?inline-script-doc-write";
-    initiator_url_doc_write_test(write_to_doc, resource, expectedInitiatorUrl, resource+" initiatorUrl from document-initiated");
-
-    write_to_doc = '<script id="script_written" src="../../resources/empty.js?doc-write"><\/script>';
-    resource = "empty.js?doc-write";
-    initiator_url_doc_write_test(write_to_doc, resource, expectedInitiatorUrl, resource+" initiatorUrl from document-initiated");
-
   </script>
 </body>
diff --git a/tests/wpt/tests/resource-timing/tentative/initiator-url/inline-document-write.html b/tests/wpt/tests/resource-timing/tentative/initiator-url/inline-document-write.html
new file mode 100644
index 00000000000..ac8f20404bf
--- /dev/null
+++ b/tests/wpt/tests/resource-timing/tentative/initiator-url/inline-document-write.html
@@ -0,0 +1,35 @@
+<!DOCTYPE html>
+<head>
+  <script src="/resources/testharness.js"></script>
+  <script src="/resources/testharnessreport.js"></script>
+  <script src="/resource-timing/resources/observe-entry.js"></script>
+  <script src="../../resources/test-initiator.js"></script>
+  <script src="/common/get-host-info.sub.js"></script>
+
+</head>
+<body>
+  <script>
+    // As of 08/2025, Chromium hasn't properly implemented |initiator_Url| for document.write().
+    // These tests are passing because they are wrongly considered as html inline resources.
+    // document.write() is deprecated. The implementation of "initiator-url" for it is not
+    // planned. document.write() test cases should be removed.
+    document.write('<img id="img_written" src="/images/blue.png?inline-script-doc-write">');
+    document.write('<link id="css_written" rel="stylesheet" href="../resources/empty_style.css?inline-script-doc-write">');
+    document.write('<script id="script_written" src="../resources/empty.js?doc-write"><\/script>');
+
+    const host_info = get_host_info();
+    const expectedInitiatorUrl = host_info["ORIGIN"] +
+      "/resource-timing/tentative/initiator-url/inline-document-write.html";
+
+    const resources = [
+      "blue.png?inline-script-doc-write",
+      "empty_style.css?inline-script-doc-write",
+      "empty.js?doc-write",
+    ];
+
+    for (const resource of resources) {
+      initiator_url_test(resource, expectedInitiatorUrl, resource+
+        " initiatorUrl from document-initiated", resource+" timeout");
+    }
+  </script>
+</body>
diff --git a/tests/wpt/tests/route/crashtests/routemap-src.html b/tests/wpt/tests/route/crashtests/routemap-src.html
deleted file mode 100644
index d242ee795ae..00000000000
--- a/tests/wpt/tests/route/crashtests/routemap-src.html
+++ /dev/null
@@ -1,6 +0,0 @@
-<!DOCTYPE html>
-<!-- External route maps are not (at least not yet) supported.
-     Shouldn't cause any crashes -->
-<link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
-<link rel="help" href="https://github.com/WICG/declarative-partial-updates?tab=readme-ov-file#part-2-route-matching">
-<script type="routemap" src="notfound"></script>
diff --git a/tests/wpt/tests/scroll-animations/animation-trigger/animation-trigger-alternate.tentative.html b/tests/wpt/tests/scroll-animations/animation-trigger/animation-trigger-alternate.tentative.html
index 98756985bfd..78043964cc1 100644
--- a/tests/wpt/tests/scroll-animations/animation-trigger/animation-trigger-alternate.tentative.html
+++ b/tests/wpt/tests/scroll-animations/animation-trigger/animation-trigger-alternate.tentative.html
@@ -24,15 +24,18 @@
       }
 
       #scroll_target {
-        animation-trigger: --scrolltrigger;
+        animation-trigger:
+             trigger(--scrolltrigger, enter play-forwards, exit play-backwards);
         timeline-trigger: --scrolltrigger scroll() alternate 150px 200px;
       }
       #view_target {
-        animation-trigger: --viewtrigger;
+        animation-trigger:
+               trigger(--viewtrigger, enter play-forwards, exit play-backwards);
         timeline-trigger: --viewtrigger view() alternate 150px 200px;
       }
       #deferred_target {
-        animation-trigger: --deferredtrigger;
+        animation-trigger:
+           trigger(--deferredtrigger, enter play-forwards, exit play-backwards);
       }
       #deferred_subject {
         view-timeline: --viewtimeline;
diff --git a/tests/wpt/tests/scroll-animations/animation-trigger/animation-trigger-fill-mode-both.tentative.html b/tests/wpt/tests/scroll-animations/animation-trigger/animation-trigger-fill-mode-both.tentative.html
index 739692139c4..da583db7242 100644
--- a/tests/wpt/tests/scroll-animations/animation-trigger/animation-trigger-fill-mode-both.tentative.html
+++ b/tests/wpt/tests/scroll-animations/animation-trigger/animation-trigger-fill-mode-both.tentative.html
@@ -25,7 +25,7 @@
         background-color: blue;
         animation: slide-in 0.3s both;
         timeline-trigger: --trigger view() alternate contain 0% contain 100%;
-        animation-trigger: --trigger;
+        animation-trigger: trigger(--trigger, enter play-forwards, exit play-backwards);
         position: absolute;
       }
       .space {
diff --git a/tests/wpt/tests/scroll-animations/animation-trigger/animation-trigger-fill-mode-none.tentative.html b/tests/wpt/tests/scroll-animations/animation-trigger/animation-trigger-fill-mode-none.tentative.html
index c1c01541a72..02aa7f5f26c 100644
--- a/tests/wpt/tests/scroll-animations/animation-trigger/animation-trigger-fill-mode-none.tentative.html
+++ b/tests/wpt/tests/scroll-animations/animation-trigger/animation-trigger-fill-mode-none.tentative.html
@@ -24,7 +24,7 @@
         background-color: blue;
         animation: slide-in 3s none;
         timeline-trigger: --trigger view() alternate contain 0% contain 100%;
-        animation-trigger: --trigger;
+        animation-trigger: trigger(--trigger, enter play-forwards, exit play-backwards);
       }
       .space {
         height: 250px;
diff --git a/tests/wpt/tests/scroll-animations/animation-trigger/animation-trigger-late-attached-timeline.tentative.html b/tests/wpt/tests/scroll-animations/animation-trigger/animation-trigger-late-attached-timeline.tentative.html
index e62311e080b..22bcf9990b5 100644
--- a/tests/wpt/tests/scroll-animations/animation-trigger/animation-trigger-late-attached-timeline.tentative.html
+++ b/tests/wpt/tests/scroll-animations/animation-trigger/animation-trigger-late-attached-timeline.tentative.html
@@ -77,7 +77,7 @@
         // Now attach a view timeline. Since we are in the trigger range, we
         // should trigger.
         await testAnimationTrigger(test, async () => {
-          target.style.animationTrigger = "--trigger";
+          target.style.animationTrigger = "trigger(--trigger, enter play-once)";
           target.style.timelineTriggerTimeline = "--viewtimeline";
           await waitForAnimationFrames(5);
         }, target, ["animationstart", "animationend", "animationcancel"],
diff --git a/tests/wpt/tests/scroll-animations/animation-trigger/animation-trigger-once-play-state.tentative.html b/tests/wpt/tests/scroll-animations/animation-trigger/animation-trigger-once-play-state.tentative.html
index 82183d6bc6b..42887c8ac7b 100644
--- a/tests/wpt/tests/scroll-animations/animation-trigger/animation-trigger-once-play-state.tentative.html
+++ b/tests/wpt/tests/scroll-animations/animation-trigger/animation-trigger-once-play-state.tentative.html
@@ -25,7 +25,7 @@
       .target {
         animation: myAnim linear 0.5s forwards;
         timeline-trigger: --trigger once --viewtimeline 150px 200px;
-        animation-trigger: --trigger;
+        animation-trigger: trigger(--trigger, enter play-once);
       }
       .scroller {
         overflow-y: scroll;
diff --git a/tests/wpt/tests/scroll-animations/animation-trigger/animation-trigger-once.tentative.html b/tests/wpt/tests/scroll-animations/animation-trigger/animation-trigger-once.tentative.html
index 6d67107335d..5a85ff95bd5 100644
--- a/tests/wpt/tests/scroll-animations/animation-trigger/animation-trigger-once.tentative.html
+++ b/tests/wpt/tests/scroll-animations/animation-trigger/animation-trigger-once.tentative.html
@@ -24,15 +24,15 @@
       }
 
       #scroll_target {
-        animation-trigger: --scrolltrigger;
+        animation-trigger: trigger(--scrolltrigger, enter play-once);
         timeline-trigger: --scrolltrigger scroll() 150px 200px;
       }
       #view_target {
-        animation-trigger: --viewtrigger;
+        animation-trigger: trigger(--viewtrigger, enter play-once);
         timeline-trigger: --viewtrigger view() 150px 200px;
       }
       #deferred_target {
-        animation-trigger: --deferredtrigger;
+        animation-trigger: trigger(--deferredtrigger, enter play-once);
       }
       #deferred_subject {
         view-timeline: --viewtimeline;
diff --git a/tests/wpt/tests/scroll-animations/animation-trigger/animation-trigger-repeat.tentative.html b/tests/wpt/tests/scroll-animations/animation-trigger/animation-trigger-repeat.tentative.html
index b75f50086ce..4d7d2fe8652 100644
--- a/tests/wpt/tests/scroll-animations/animation-trigger/animation-trigger-repeat.tentative.html
+++ b/tests/wpt/tests/scroll-animations/animation-trigger/animation-trigger-repeat.tentative.html
@@ -24,15 +24,15 @@
       }
 
       #scroll_target {
-        animation-trigger: --scrolltrigger;
+        animation-trigger: trigger(--scrolltrigger, enter play-forwards, exit reset);
         timeline-trigger: --scrolltrigger scroll() repeat 250px 300px 200px 350px;
       }
       #view_target {
-        animation-trigger: --viewtrigger;
+        animation-trigger: trigger(--viewtrigger, enter play-forwards, exit reset);
         timeline-trigger: --viewtrigger view() repeat 250px 300px 200px 350px;
       }
       #deferred_target {
-        animation-trigger: --deferredtrigger;
+        animation-trigger: trigger(--deferredtrigger, enter play-forwards, exit reset);
       }
       #deferred_subject {
         view-timeline: --viewtimeline;
diff --git a/tests/wpt/tests/scroll-animations/animation-trigger/animation-trigger-state.tentative.html b/tests/wpt/tests/scroll-animations/animation-trigger/animation-trigger-state.tentative.html
index 227c4c349f6..1a80e6dadab 100644
--- a/tests/wpt/tests/scroll-animations/animation-trigger/animation-trigger-state.tentative.html
+++ b/tests/wpt/tests/scroll-animations/animation-trigger/animation-trigger-state.tentative.html
@@ -24,15 +24,15 @@
       }
 
       #scroll_target {
-        animation-trigger: --scrolltrigger;
+        animation-trigger: trigger(--scrolltrigger, enter play, exit pause);
         timeline-trigger: --scrolltrigger scroll() state 150px 200px;
       }
       #view_target {
-        animation-trigger: --viewtrigger;
+        animation-trigger: trigger(--viewtrigger, enter play, exit pause);
         timeline-trigger: --viewtrigger view() state 150px 200px;
       }
       #deferred_target {
-        animation-trigger: --deferredtrigger;
+        animation-trigger: trigger(--deferredtrigger, enter play, exit pause);
       }
       #deferred_subject {
         view-timeline: --viewtimeline;
diff --git a/tests/wpt/tests/scroll-animations/animation-trigger/parsing/animation-trigger-parsing.tentative.html b/tests/wpt/tests/scroll-animations/animation-trigger/parsing/animation-trigger-parsing.tentative.html
index 5deeee80487..7ab8492110b 100644
--- a/tests/wpt/tests/scroll-animations/animation-trigger/parsing/animation-trigger-parsing.tentative.html
+++ b/tests/wpt/tests/scroll-animations/animation-trigger/parsing/animation-trigger-parsing.tentative.html
@@ -11,51 +11,128 @@ test_valid_value('animation-trigger', 'inherit');
 test_valid_value('animation-trigger', 'unset');
 test_valid_value('animation-trigger', 'revert');
 
+// Valid: Single attachment per animation.
 test_valid_value('animation-trigger', 'none');
-test_valid_value('animation-trigger', '--abc');
-test_valid_value('animation-trigger', '  --abc', '--abc');
-test_valid_value('animation-trigger', '--aBc');
-test_valid_value('animation-trigger', '--foo, --bar');
-test_valid_value('animation-trigger', '--bar, --foo');
+test_valid_value('animation-trigger', 'trigger(--abc, click play)');
+test_valid_value('animation-trigger',
+                 '  trigger(--abc, click play)', 'trigger(--abc, click play)');
+test_valid_value('animation-trigger', 'trigger(--aBc, click play)');
+test_valid_value('animation-trigger',
+                 'trigger(--foo, click play), trigger(--bar, click play)');
+test_valid_value('animation-trigger',
+                 'trigger(--bar, click play), trigger(--foo, click play)');
 test_valid_value('animation-trigger', 'none, none');
-test_valid_value('animation-trigger', '--a, none, --b');
+test_valid_value('animation-trigger',
+                 'trigger(--a, click play), none, trigger(--b, click play)');
+// Valid: Single attachment per animation, multiple action-behavior pairs
+test_valid_value('animation-trigger',
+                 'trigger(--abc, click play, dblclick pause)');
+test_valid_value('animation-trigger',
+                 'trigger(--abc, click play, dblclick pause, touch reset)');
+test_valid_value('animation-trigger',
+                 'trigger(--abc, click play, dblclick pause, touch reset), ' +
+                 'trigger(--def, click pause, dblclick reset, touch play)');
 
-test_valid_value('animation-trigger', '--abc --bcd, --cde --def');
-test_valid_value('animation-trigger', '--abc --abc');
-test_valid_value('animation-trigger', '  --abc --abc', '--abc --abc');
-test_valid_value('animation-trigger', '  --abc --bcd', '--abc --bcd');
-test_valid_value('animation-trigger', '--aBc --abc');
-test_valid_value('animation-trigger', '--aBc --abc --aBc');
-test_valid_value('animation-trigger', '--aBc, --aBc', '--aBc, --aBc');
-test_valid_value('animation-trigger', '--abc --bcd, --abc --bcd');
-test_valid_value('animation-trigger', '---abc');
+// Valid: Multiple attachments per animation.
+test_valid_value('animation-trigger',
+                 'trigger(--abc, click play) trigger(--abc, click play)');
+test_valid_value('animation-trigger',
+  'trigger(--abc, click play) trigger(--bcd, click play), ' +
+  'trigger(--cde, click play) trigger(--def, click play)');
+test_valid_value('animation-trigger',
+  ' trigger(--abc, click play) trigger(--bcd, click play), ' +
+  ' trigger(--cde, click play) trigger(--def, click play)',
+  'trigger(--abc, click play) trigger(--bcd, click play), ' +
+  'trigger(--cde, click play) trigger(--def, click play)');
+test_valid_value('animation-trigger',
+'trigger(--aBc, click play) trigger(--abc, click play) ' +
+'trigger(--aBc, click play)'
+);
+test_valid_value('animation-trigger',
+'trigger(--aBc, click play) trigger(--abc, click play), ' +
+'trigger(--aBc, click play)'
+);
+test_valid_value('animation-trigger', 'trigger(---aBc, click play)');
+test_valid_value('animation-trigger', 'trigger(--aBc-dEf, click play)');
+test_valid_value('animation-trigger', 'trigger(---aBc-dEf, click play)');
+// Valid: Multiple attachments per animation, multiple action-behavior pairs.
+test_valid_value('animation-trigger',
+                 'trigger(--abc, click play, dblclick pause) ' +
+                 'trigger(--def, click play, dblclick reset)');
 
+// Computed: Single attachment per animation.
 test_computed_value('animation-trigger', 'none');
-test_computed_value('animation-trigger', '--abc');
-test_computed_value('animation-trigger', '  --abc', '--abc');
-test_computed_value('animation-trigger', '--aBc');
-test_computed_value('animation-trigger', '--foo, --bar');
-test_computed_value('animation-trigger', '--bar, --foo');
+test_computed_value('animation-trigger', 'trigger(--abc, click play)');
+test_computed_value('animation-trigger','  trigger(--abc, click play)',
+                                        'trigger(--abc, click play)');
+test_computed_value('animation-trigger', 'trigger(--aBc, click play)');
+test_computed_value('animation-trigger', 'trigger(--foo, click play), ' +
+                                         'trigger(--bar, click play)');
+test_computed_value('animation-trigger', 'trigger(--bar, click play), ' +
+                                         'trigger(--foo, click play)');
 test_computed_value('animation-trigger', 'none, none');
-test_computed_value('animation-trigger', '--abc --bcd, --cde --def');
-test_computed_value('animation-trigger', '--abc --abc');
-test_computed_value('animation-trigger', '  --abc --abc', '--abc --abc');
-test_computed_value('animation-trigger', '  --abc --bcd', '--abc --bcd');
-test_computed_value('animation-trigger', '--aBc --abc');
-test_computed_value('animation-trigger', '--aBc --abc --aBc');
-test_computed_value('animation-trigger', '--aBc, --aBc', '--aBc, --aBc');
-test_computed_value('animation-trigger', '--abc --bcd, --abc --bcd');
-test_computed_value('animation-trigger', '--a, none, --b');
-test_computed_value('animation-trigger', '---abc');
+test_computed_value('animation-trigger', 'trigger(--aBc, click play), ' +
+                                         'trigger(--aBc, click play)');
+// Computed: Single attachment per animation, multiple action-behavior pairs
+test_computed_value('animation-trigger',
+                    'trigger(--abc, click play, dblclick pause)');
+test_computed_value('animation-trigger',
+                    'trigger(--abc, click play, dblclick pause, touch reset)');
+test_computed_value('animation-trigger',
+                  'trigger(--abc, click play, dblclick pause, touch reset), ' +
+                  'trigger(--def, click pause, dblclick reset, touch play)');
+// Computed: Multiple attachments per animation, multiple action-behavior pairs.
+test_computed_value('animation-trigger',
+                 'trigger(--abc, click play, dblclick pause) ' +
+                 'trigger(--def, click play, dblclick reset)');
 
-test_invalid_value('animation-trigger', '--abc none');
-test_invalid_value('animation-trigger', '--a --b, --a none, --b');
-test_invalid_value('animation-trigger', 'none --abc');
+// Computed: Multiple attachments per animation
+test_computed_value('animation-trigger',
+                    'trigger(--abc, click play) trigger(--abc, click play)');
+test_computed_value('animation-trigger',
+                    'trigger(--abc, click play) trigger(--bcd, click play), ' +
+                    'trigger(--abc, click play) trigger(--bcd, click play)');
+test_computed_value('animation-trigger',
+                    'trigger(--abc, click play) trigger(--bcd, click play), ' +
+                    'trigger(--cde, click play) trigger(--def, click play)');
+test_computed_value('animation-trigger',
+                    '  trigger(--abc, click play) trigger(--abc, click play)',
+                    'trigger(--abc, click play) trigger(--abc, click play)');
+test_computed_value('animation-trigger',
+                    '  trigger(--abc, click play) trigger(--bcd, click play)',
+                    'trigger(--abc, click play) trigger(--bcd, click play)');
+test_computed_value('animation-trigger',
+                    'trigger(--aBc, click play) trigger(--abc, click play)');
+test_computed_value('animation-trigger',
+  'trigger(--aBc, click play) trigger(--abc, click play) trigger(--aBc, click play)');
+test_computed_value('animation-trigger',
+                    'trigger(--a, click play), none, trigger(--b, click play)');
+test_computed_value('animation-trigger', 'trigger(---abc, click play)');
+
+// Invalid
+test_invalid_value('animation-trigger', 'trigger(--abc, click play) none');
+test_invalid_value('animation-trigger',
+  'trigger(--a, click play) trigger(--b, click play), trigger(--a, click play) none, trigger(--b, click play)');
+test_invalid_value('animation-trigger', 'none trigger(--abc, click play)');
 test_invalid_value('animation-trigger', 'none none');
 test_invalid_value('animation-trigger', 'none none, none', 'none, none');
 test_invalid_value('animation-trigger', 'auto');
 test_invalid_value('animation-trigger', 'abc');
-test_invalid_value('animation-trigger', '-abc');
+test_invalid_value('animation-trigger', '--abc');
+test_invalid_value('animation-trigger', 'trigger');
+test_invalid_value('animation-trigger', 'trigger(--abc');
+test_invalid_value('animation-trigger', 'trigger()');
+test_invalid_value('animation-trigger', 'trigger(click)');
+test_invalid_value('animation-trigger', 'trigger(play)');
+test_invalid_value('animation-trigger', 'trigger(-abc, click play)');
+test_invalid_value('animation-trigger', 'trigger(--abc)');
+test_invalid_value('animation-trigger', 'trigger(--abc, click)');
+test_invalid_value('animation-trigger', 'trigger(--abc, play)');
+test_invalid_value('animation-trigger', 'trigger(--abc click play)');
+test_invalid_value('animation-trigger', 'trigger(--abc, click play click play)');
+test_invalid_value('animation-trigger', 'trigger(--abc click play, click play)');
+test_invalid_value('animation-trigger', 'trigger(--abc, click, play)');
+test_invalid_value('animation-trigger', 'trigger(--abc, click, click play)');
 test_invalid_value('animation-trigger', 'default');
 test_invalid_value('animation-trigger', '10px');
 test_invalid_value('animation-trigger', 'foo bar');
diff --git a/tests/wpt/tests/scroll-animations/animation-trigger/parsing/animation-trigger-name-parsing.html b/tests/wpt/tests/scroll-animations/animation-trigger/parsing/timeline-trigger-name-parsing.html
similarity index 100%
rename from tests/wpt/tests/scroll-animations/animation-trigger/parsing/animation-trigger-name-parsing.html
rename to tests/wpt/tests/scroll-animations/animation-trigger/parsing/timeline-trigger-name-parsing.html
diff --git a/tests/wpt/tests/selection/crashtests/selection-modify-word-left-with-selecting-editable-select.html b/tests/wpt/tests/selection/crashtests/selection-modify-word-left-with-selecting-editable-select.html
new file mode 100644
index 00000000000..a37e31aa1d2
--- /dev/null
+++ b/tests/wpt/tests/selection/crashtests/selection-modify-word-left-with-selecting-editable-select.html
@@ -0,0 +1,25 @@
+<!doctype html>
+<html>
+<head>
+<meta charset="utf-8">
+<script>
+"use strict";
+
+document.addEventListener("DOMContentLoaded", () => {
+  const range = document.createRange();
+  range.selectNode(document.querySelector("cite"));
+  getSelection().removeAllRanges();
+  getSelection().addRange(range);
+  getSelection().modify("move", "left", "word");
+  getSelection().modify("extend", "forward", "line");
+  document.documentElement.style.display = "none";
+  document.documentElement.getBoundingClientRect();
+  getSelection().removeAllRanges();
+}, {once: true});
+</script>
+</head>
+<body>
+<cite dir="rtl">
+<select contenteditable="true">
+<!-- Do NOT put any white spaces after the close tag of select -->
+</select></cite></body></html>
\ No newline at end of file
diff --git a/tests/wpt/tests/shadow-dom/reference-target/tentative/interestfor.tentative.html b/tests/wpt/tests/shadow-dom/reference-target/tentative/interestfor.tentative.html
index da983ace612..60e988d28c1 100644
--- a/tests/wpt/tests/shadow-dom/reference-target/tentative/interestfor.tentative.html
+++ b/tests/wpt/tests/shadow-dom/reference-target/tentative/interestfor.tentative.html
@@ -8,7 +8,7 @@
   <script src="/resources/testdriver-vendor.js"></script>
   <script src="/resources/testdriver-actions.js"></script>
   <script src="/wai-aria/scripts/aria-utils.js"></script>
-  <script src="/html/semantics/the-button-element/interest-for/resources/invoker-utils.js"></script>
+  <script src="/html/semantics/interestfor/resources/invoker-utils.js"></script>
 </head>
 
 <body>
diff --git a/tests/wpt/tests/svg/fonts/font-size-adjust-scale-text-ref.svg b/tests/wpt/tests/svg/fonts/font-size-adjust-scale-text-ref.svg
new file mode 100644
index 00000000000..0fd1d57daa6
--- /dev/null
+++ b/tests/wpt/tests/svg/fonts/font-size-adjust-scale-text-ref.svg
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:html="http://www.w3.org/1999/xhtml">
+<g id="testmeta">
+  <title>SVG Text Scaling with with font-size-adjust</title>
+  <html:link rel="author" title="ChangSeok Oh" href="mailto:changseok@chromium.org" />
+</g>
+<rect width="250" height="250" fill="black" />
+</svg>
diff --git a/tests/wpt/tests/svg/fonts/font-size-adjust-scale-text.svg b/tests/wpt/tests/svg/fonts/font-size-adjust-scale-text.svg
new file mode 100644
index 00000000000..b282281cb5b
--- /dev/null
+++ b/tests/wpt/tests/svg/fonts/font-size-adjust-scale-text.svg
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:html="http://www.w3.org/1999/xhtml">
+<g id="testmeta">
+  <title>SVG Text Scaling with with font-size-adjust</title>
+  <html:link rel="author" title="ChangSeok Oh" href="mailto:changseok@chromium.org" />
+  <html:link rel="help" href="http://www.w3.org/TR/css-transforms-1/#svg-transform" />
+  <html:link rel="help" href="http://www.w3.org/TR/css-fonts-3/#font-size-adjust-prop" />
+  <html:link rel="match" href="font-size-adjust-scale-text-ref.svg" />
+  <html:link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+  <metadata class="flags">svg</metadata>
+  <desc class="">The black square should match the reference. The x-height of
+  the Ahem font is 0.8. Given a font size of 100px and font-size-adjust: 1,
+  the adjusted font size becomes 125px (1 / 0.8 * 100). Since the text is scaled
+  up by a factor of 2, the final rendered font size should be 250px.</desc>
+</g>
+<style type="text/css">
+text {
+  font: 100px/1 Ahem;
+  font-size-adjust: 1;
+  transform: scale(2);
+}
+</style>
+<text y="100">X</text>
+</svg>
diff --git a/tests/wpt/tests/svg/linking/scripted/a.hreflang-getter-01.svg b/tests/wpt/tests/svg/linking/scripted/a.hreflang-getter-01.svg
new file mode 100644
index 00000000000..e9fb3b71aab
--- /dev/null
+++ b/tests/wpt/tests/svg/linking/scripted/a.hreflang-getter-01.svg
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg xmlns="http://www.w3.org/2000/svg"
+     xmlns:h="http://www.w3.org/1999/xhtml">
+  <title>SVGAElement.hreflang getter</title>
+  <metadata>
+    <h:link rel="help" href="https://svgwg.org/svg2-draft/linking.html#InterfaceSVGAElement"/>
+  </metadata>
+  <a id="test" href="a" hreflang="en"></a>
+  <h:script src="/resources/testharness.js"/>
+  <h:script src="/resources/testharnessreport.js"/>
+  <script><![CDATA[
+    test(function() {
+      var a = document.getElementById("test");
+
+      test(function() {
+        assert_equals(a.hreflang, "en");
+       }, "Test anchor's hreflang getter");
+    });
+  ]]></script>
+</svg>
\ No newline at end of file
diff --git a/tests/wpt/tests/svg/linking/scripted/a.hreflang-setter-01.svg b/tests/wpt/tests/svg/linking/scripted/a.hreflang-setter-01.svg
new file mode 100644
index 00000000000..a6d856e9830
--- /dev/null
+++ b/tests/wpt/tests/svg/linking/scripted/a.hreflang-setter-01.svg
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg xmlns="http://www.w3.org/2000/svg"
+     xmlns:h="http://www.w3.org/1999/xhtml">
+  <title>SVGAElement.hreflang setter</title>
+  <metadata>
+    <h:link rel="help" href="https://svgwg.org/svg2-draft/linking.html#InterfaceSVGAElement"/>
+  </metadata>
+  <a id="test" href="a"></a>
+  <h:script src="/resources/testharness.js"/>
+  <h:script src="/resources/testharnessreport.js"/>
+  <script><![CDATA[
+    test(function() {
+        var a = document.getElementById("test");
+
+        test(function() {
+            a.hreflang = "fr"
+            assert_equals(a.hreflang, "fr");
+        }, "Test anchor's hreflang setter");
+    });
+  ]]></script>
+</svg>
\ No newline at end of file
diff --git a/tests/wpt/tests/svg/painting/reftests/text-shadow-01.html b/tests/wpt/tests/svg/painting/reftests/text-shadow-01.html
new file mode 100644
index 00000000000..55cec94e6d5
--- /dev/null
+++ b/tests/wpt/tests/svg/painting/reftests/text-shadow-01.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<meta charset="utf-8" />
+<title>SVG Text Shadows</title>
+<link rel="author" title="Stephen Chenney" href="mailto:schenney@chromium.org">
+<meta name="assert" content="Verify correct painting of SVG shadows with filled text">
+<link rel="match" href="text-shadow-ref.html">
+<meta name="fuzzy" content="0-200;0-400"/>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+  text {
+    font: 16px Ahem;
+    text-shadow: 0px 0px 5px green;
+    fill: darkgreen;
+    stroke: none;
+  }
+</style>
+<svg width="100" height="60">
+  <text x="20" y="20">A</text>
+</svg>
diff --git a/tests/wpt/tests/svg/painting/reftests/text-shadow-02.html b/tests/wpt/tests/svg/painting/reftests/text-shadow-02.html
new file mode 100644
index 00000000000..6400e47b9bd
--- /dev/null
+++ b/tests/wpt/tests/svg/painting/reftests/text-shadow-02.html
@@ -0,0 +1,20 @@
+<!DOCTYPE html>
+<meta charset="utf-8" />
+<title>SVG Text Shadows</title>
+<link rel="author" title="Stephen Chenney" href="mailto:schenney@chromium.org">
+<meta name="assert" content="Verify correct painting of SVG shadows with stroked text">
+<link rel="match" href="text-shadow-ref.html">
+<meta name="fuzzy" content="0-75;0-400"/>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+  text {
+    font: 15px Ahem;
+    text-shadow: 0px 0px 5px green;
+    fill: none;
+    stroke: darkgreen;
+  }
+</style>
+<svg width="100" height="60">
+  <text x="21" y="19">A</text>
+  <rect fill="darkgreen" x="22" y="8" width="14" height="14"></rect>
+</svg>
diff --git a/tests/wpt/tests/svg/painting/reftests/text-shadow-03.html b/tests/wpt/tests/svg/painting/reftests/text-shadow-03.html
new file mode 100644
index 00000000000..c78deefa2d1
--- /dev/null
+++ b/tests/wpt/tests/svg/painting/reftests/text-shadow-03.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<meta charset="utf-8" />
+<title>SVG Text Shadows</title>
+<link rel="author" title="Stephen Chenney" href="mailto:schenney@chromium.org">
+<meta name="assert" content="Verify correct painting of SVG shadows with filled and stroked text with stroke painting first">
+<link rel="match" href="text-shadow-02.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+  text {
+    font: 15px Ahem;
+    text-shadow: 0px 0px 5px green;
+    fill: darkgreen;
+    stroke: darkgreen;
+    paint-order: stroke;
+  }
+</style>
+<svg width="100" height="60">
+  <text x="21" y="19">A</text>
+</svg>
diff --git a/tests/wpt/tests/svg/painting/reftests/text-shadow-ref.html b/tests/wpt/tests/svg/painting/reftests/text-shadow-ref.html
new file mode 100644
index 00000000000..974e117381f
--- /dev/null
+++ b/tests/wpt/tests/svg/painting/reftests/text-shadow-ref.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<meta charset="utf-8" />
+<title>SVG Text Shadows - ref</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+  div {
+    font: 16px Ahem;
+    text-shadow: 0px 0px 5px green;
+    color: darkgreen;
+    margin-left: 21px;
+    margin-top: 15px;
+  }
+</style>
+<div>A</div>
diff --git a/tests/wpt/tests/svg/styling/use-element-attr-selector-transition.html b/tests/wpt/tests/svg/styling/use-element-attr-selector-transition.tentative.html
similarity index 91%
rename from tests/wpt/tests/svg/styling/use-element-attr-selector-transition.html
rename to tests/wpt/tests/svg/styling/use-element-attr-selector-transition.tentative.html
index 3a617cc315c..103aabbeaed 100644
--- a/tests/wpt/tests/svg/styling/use-element-attr-selector-transition.html
+++ b/tests/wpt/tests/svg/styling/use-element-attr-selector-transition.tentative.html
@@ -2,6 +2,7 @@
 <html class="reftest-wait">
 <title>SVG Test: Attribute change in template starts transition in &lt;use&gt; element tree</title>
 <link rel="help" href="https://svgwg.org/svg2-draft/struct.html#UseElement">
+<link rel="help" href="https://github.com/w3c/svgwg/issues/1002">
 <link rel="match" href="use-element-selector-ref.html">
 <style>
   #rect { fill: black; transition: fill 1000s steps(2, start); }
diff --git a/tests/wpt/tests/svg/styling/use-element-class-selector-transition.html b/tests/wpt/tests/svg/styling/use-element-class-selector-transition.tentative.html
similarity index 91%
rename from tests/wpt/tests/svg/styling/use-element-class-selector-transition.html
rename to tests/wpt/tests/svg/styling/use-element-class-selector-transition.tentative.html
index 73c3b1da6c0..351a6e61db6 100644
--- a/tests/wpt/tests/svg/styling/use-element-class-selector-transition.html
+++ b/tests/wpt/tests/svg/styling/use-element-class-selector-transition.tentative.html
@@ -2,6 +2,7 @@
 <html class="reftest-wait">
 <title>SVG Test: Class change in template starts transition in &lt;use&gt; element tree</title>
 <link rel="help" href="https://svgwg.org/svg2-draft/struct.html#UseElement">
+<link rel="help" href="https://github.com/w3c/svgwg/issues/1002">
 <link rel="match" href="use-element-selector-ref.html">
 <style>
   #rect { fill: black; transition: fill 1000s steps(2, start); }
diff --git a/tests/wpt/tests/svg/styling/use-element-id-selector-transition.html b/tests/wpt/tests/svg/styling/use-element-id-selector-transition.tentative.html
similarity index 92%
rename from tests/wpt/tests/svg/styling/use-element-id-selector-transition.html
rename to tests/wpt/tests/svg/styling/use-element-id-selector-transition.tentative.html
index 83702aff752..289dd574ea1 100644
--- a/tests/wpt/tests/svg/styling/use-element-id-selector-transition.html
+++ b/tests/wpt/tests/svg/styling/use-element-id-selector-transition.tentative.html
@@ -2,6 +2,7 @@
 <html class="reftest-wait">
 <title>SVG Test: Id change in template starts transition in &lt;use&gt; element tree</title>
 <link rel="help" href="https://svgwg.org/svg2-draft/struct.html#UseElement">
+<link rel="help" href="https://github.com/w3c/svgwg/issues/1002">
 <link rel="match" href="use-element-selector-ref.html">
 <style>
   #rect { fill: black; transition: fill 1000s steps(2, start); }
diff --git a/tests/wpt/tests/svg/styling/use-element-transitions-dom-mutation.html b/tests/wpt/tests/svg/styling/use-element-transitions-dom-mutation.tentative.html
similarity index 92%
rename from tests/wpt/tests/svg/styling/use-element-transitions-dom-mutation.html
rename to tests/wpt/tests/svg/styling/use-element-transitions-dom-mutation.tentative.html
index 897c9dfa17f..9d3506cc64c 100644
--- a/tests/wpt/tests/svg/styling/use-element-transitions-dom-mutation.html
+++ b/tests/wpt/tests/svg/styling/use-element-transitions-dom-mutation.tentative.html
@@ -2,6 +2,7 @@
 <html class="reftest-wait">
 <title>SVG Test: DOM mutations in template should not stop transition in &lt;use&gt; element tree</title>
 <link rel="help" href="https://svgwg.org/svg2-draft/struct.html#UseElement">
+<link rel="help" href="https://github.com/w3c/svgwg/issues/1002">
 <link rel="match" href="use-element-selector-ref.html">
 <style>
   #rect { fill: black; transition: fill 1000s steps(2, start); }
diff --git a/tests/wpt/tests/svg/styling/use-element-transitions.html b/tests/wpt/tests/svg/styling/use-element-transitions.tentative.html
similarity index 91%
rename from tests/wpt/tests/svg/styling/use-element-transitions.html
rename to tests/wpt/tests/svg/styling/use-element-transitions.tentative.html
index 68653835f44..593626bd399 100644
--- a/tests/wpt/tests/svg/styling/use-element-transitions.html
+++ b/tests/wpt/tests/svg/styling/use-element-transitions.tentative.html
@@ -2,6 +2,7 @@
 <html class="reftest-wait">
 <title>SVG Test: Independent CSS transitions on svg:use instantiation and corresponding element</title>
 <link rel="help" href="https://svgwg.org/svg2-draft/struct.html#UseElement">
+<link rel="help" href="https://github.com/w3c/svgwg/issues/1002">
 <link rel="match" href="use-element-transitions-ref.html">
 <style>
   use {
diff --git a/tests/wpt/tests/tools/ci/check_for_updated_refs.py b/tests/wpt/tests/tools/ci/check_for_updated_refs.py
index b7b3cfdc72e..546d554bfc0 100644
--- a/tests/wpt/tests/tools/ci/check_for_updated_refs.py
+++ b/tests/wpt/tests/tools/ci/check_for_updated_refs.py
@@ -2,10 +2,11 @@ import json
 import os
 import re
 import sys
-from typing import IO, Container, Dict, Iterable, List, Optional
+from typing import IO, Container, Dict, Iterable, Optional
+
 
 GIT_PUSH = re.compile(
-    r"^(?P<flag>.)\t(?P<from>[^\t:]*):(?P<to>[^\t:]*)\t(?P<summary>.*[^\)])(?: \((?P<reason>[^\)]*)\))?\n$"
+    r"^(?P<flag>.)\t(?P<from_ref>[^\t:]*):(?P<to_ref>[^\t:]*)\t(?P<summary>.*?)(?: \((?P<reason>.*)\))?\n$"
 )
 
 
@@ -16,18 +17,29 @@ def parse_push(fd: IO[str]) -> Iterable[Dict[str, Optional[str]]]:
             yield m.groupdict()
 
 
-def process_push(fd: IO[str], refs: Container[str]) -> List[str]:
-    updated_refs = []
+def process_push(fd: IO[str], refs: Container[str]) -> Dict[str, Optional[str]]:
+    updated_refs = {}
 
     for ref_status in parse_push(fd):
         flag = ref_status["flag"]
         if flag not in (" ", "+", "-", "*"):
             continue
 
-        to = ref_status["to"]
-        assert to is not None
-        if to in refs:
-            updated_refs.append(to)
+        to_ref = ref_status["to_ref"]
+        summary = ref_status["summary"]
+        assert to_ref is not None
+        assert summary is not None
+
+        if to_ref in refs:
+            sha = None
+
+            if flag in (" ", "+"):
+                if "..." in summary:
+                    _, sha = summary.split("...", maxsplit=1)
+                elif ".." in summary:
+                    _, sha = summary.split("..", maxsplit=1)
+
+            updated_refs[to_ref] = sha
 
     return updated_refs
 
diff --git a/tests/wpt/tests/tools/ci/epochs_update.sh b/tests/wpt/tests/tools/ci/epochs_update.sh
index cc1a536f22e..9a5708af868 100755
--- a/tests/wpt/tests/tools/ci/epochs_update.sh
+++ b/tests/wpt/tests/tools/ci/epochs_update.sh
@@ -43,7 +43,11 @@ main () {
     done
     # This is safe because `git push` will by default fail for a non-fast-forward
     # push, for example if the remote branch is ahead of the local branch.
-    git push --porcelain --tags ${REMOTE} ${ALL_BRANCHES_NAMES} | tee "${RUNNER_TEMP}/git-push-output.txt"
+    # We save the output so that GitHub Actions workflows can find out what got
+    # pushed, as workflows are not triggered by push events caused by another
+    # workflow. We need to pass core.abbrev as actions/checkout only allows refs to
+    # be specified as an object id if they are exactly 40 characters.
+    git -c core.abbrev=40 push --porcelain --tags ${REMOTE} ${ALL_BRANCHES_NAMES} | tee "${RUNNER_TEMP}/git-push-output.txt"
 }
 
 cd $WPT_ROOT
diff --git a/tests/wpt/tests/tools/ci/tests/test_check_for_updated_refs.py b/tests/wpt/tests/tools/ci/tests/test_check_for_updated_refs.py
index e6562c1202c..f53bd72aacd 100644
--- a/tests/wpt/tests/tools/ci/tests/test_check_for_updated_refs.py
+++ b/tests/wpt/tests/tools/ci/tests/test_check_for_updated_refs.py
@@ -5,102 +5,247 @@ import io
 from tools.ci import check_for_updated_refs
 
 
-def test_parse_push():
-    s = io.StringIO(
-        """
-To github.com:gsnedders/web-platform-tests.git
-=	refs/heads/a:refs/heads/a	[up to date]
--	:refs/heads/b	[deleted]
-+	refs/heads/c:refs/heads/c	a6eb923e19...9b6507e295 (forced update)
-*	refs/heads/d:refs/heads/d	[new branch]
-\x20	refs/heads/e:refs/heads/e	0acd8f62f1..6188942729
-!	refs/heads/f:refs/heads/f	[rejected] (atomic push failed)
+PUSH_OUTPUT = """To github.com:web-platform-tests/wpt.git
+=	refs/heads/stable:refs/heads/stable	[up to date]
+-	:refs/heads/deleted	[deleted]
++	refs/heads/force:refs/heads/force	7151480...62ee8b6 (forced update)
+*	refs/heads/new:refs/heads/new	[new branch]
+*	refs/tags/v1.0:refs/tags/v1.0	[new tag]
+*	refs/review/pr/123:refs/review/pr/123	[new reference]
+\x20	refs/heads/main:refs/heads/main	2e0d156..fd86363
+\x20	HEAD:refs/heads/feature	49d4a17..5105902
+\x20	refs/heads/short-sha:refs/heads/short-sha	9731..e320
+\x20	refs/heads/long-sha:refs/heads/long-sha	01e1bec7812eb37679c0b1cb436290a83cbc4694..8ec0c04d22002009e9db16f5e3c5518574907c93
+!	refs/heads/reject1:refs/heads/reject1	[rejected] (non-fast-forward)
+!	refs/heads/reject2:refs/heads/reject2	[rejected] (already exists)
+!	refs/heads/reject3:refs/heads/reject3	[rejected] (fetch first)
+!	refs/heads/reject4:refs/heads/reject4	[rejected] (needs force)
+!	refs/heads/reject5:refs/heads/reject5	[rejected] (stale info)
+!	refs/heads/reject6:refs/heads/reject6	[rejected] (remote ref updated since checkout)
+!	refs/heads/reject7:refs/heads/reject7	[rejected] (new shallow roots not allowed)
+!	refs/heads/reject8:refs/heads/reject8	[rejected] (atomic push failed)
+!	refs/heads/reject9:refs/heads/reject9	[remote rejected] (hook declined)
+!	refs/heads/reject10:refs/heads/reject10	[remote failure] (timeout)
+!	refs/heads/reject11:refs/heads/reject11	[no match]
 Done
-    """
-    )
+"""
+
+
+def test_parse_push():
+    s = io.StringIO(PUSH_OUTPUT)
 
     actual = list(check_for_updated_refs.parse_push(s))
-    print(repr(actual))
     expected = [
         {
             "flag": "=",
-            "from": "refs/heads/a",
-            "to": "refs/heads/a",
+            "from_ref": "refs/heads/stable",
+            "to_ref": "refs/heads/stable",
             "summary": "[up to date]",
             "reason": None,
         },
         {
             "flag": "-",
-            "from": "",
-            "to": "refs/heads/b",
+            "from_ref": "",
+            "to_ref": "refs/heads/deleted",
             "summary": "[deleted]",
             "reason": None,
         },
         {
             "flag": "+",
-            "from": "refs/heads/c",
-            "to": "refs/heads/c",
-            "summary": "a6eb923e19...9b6507e295",
+            "from_ref": "refs/heads/force",
+            "to_ref": "refs/heads/force",
+            "summary": "7151480...62ee8b6",
             "reason": "forced update",
         },
         {
             "flag": "*",
-            "from": "refs/heads/d",
-            "to": "refs/heads/d",
+            "from_ref": "refs/heads/new",
+            "to_ref": "refs/heads/new",
             "summary": "[new branch]",
             "reason": None,
         },
+        {
+            "flag": "*",
+            "from_ref": "refs/tags/v1.0",
+            "to_ref": "refs/tags/v1.0",
+            "summary": "[new tag]",
+            "reason": None,
+        },
+        {
+            "flag": "*",
+            "from_ref": "refs/review/pr/123",
+            "to_ref": "refs/review/pr/123",
+            "summary": "[new reference]",
+            "reason": None,
+        },
         {
             "flag": " ",
-            "from": "refs/heads/e",
-            "to": "refs/heads/e",
-            "summary": "0acd8f62f1..6188942729",
+            "from_ref": "refs/heads/main",
+            "to_ref": "refs/heads/main",
+            "summary": "2e0d156..fd86363",
+            "reason": None,
+        },
+        {
+            "flag": " ",
+            "from_ref": "HEAD",
+            "to_ref": "refs/heads/feature",
+            "summary": "49d4a17..5105902",
+            "reason": None,
+        },
+        {
+            "flag": " ",
+            "from_ref": "refs/heads/short-sha",
+            "to_ref": "refs/heads/short-sha",
+            "summary": "9731..e320",
+            "reason": None,
+        },
+        {
+            "flag": " ",
+            "from_ref": "refs/heads/long-sha",
+            "to_ref": "refs/heads/long-sha",
+            "summary": "01e1bec7812eb37679c0b1cb436290a83cbc4694..8ec0c04d22002009e9db16f5e3c5518574907c93",
             "reason": None,
         },
         {
             "flag": "!",
-            "from": "refs/heads/f",
-            "to": "refs/heads/f",
+            "from_ref": "refs/heads/reject1",
+            "to_ref": "refs/heads/reject1",
+            "summary": "[rejected]",
+            "reason": "non-fast-forward",
+        },
+        {
+            "flag": "!",
+            "from_ref": "refs/heads/reject2",
+            "to_ref": "refs/heads/reject2",
+            "summary": "[rejected]",
+            "reason": "already exists",
+        },
+        {
+            "flag": "!",
+            "from_ref": "refs/heads/reject3",
+            "to_ref": "refs/heads/reject3",
+            "summary": "[rejected]",
+            "reason": "fetch first",
+        },
+        {
+            "flag": "!",
+            "from_ref": "refs/heads/reject4",
+            "to_ref": "refs/heads/reject4",
+            "summary": "[rejected]",
+            "reason": "needs force",
+        },
+        {
+            "flag": "!",
+            "from_ref": "refs/heads/reject5",
+            "to_ref": "refs/heads/reject5",
+            "summary": "[rejected]",
+            "reason": "stale info",
+        },
+        {
+            "flag": "!",
+            "from_ref": "refs/heads/reject6",
+            "to_ref": "refs/heads/reject6",
+            "summary": "[rejected]",
+            "reason": "remote ref updated since checkout",
+        },
+        {
+            "flag": "!",
+            "from_ref": "refs/heads/reject7",
+            "to_ref": "refs/heads/reject7",
+            "summary": "[rejected]",
+            "reason": "new shallow roots not allowed",
+        },
+        {
+            "flag": "!",
+            "from_ref": "refs/heads/reject8",
+            "to_ref": "refs/heads/reject8",
             "summary": "[rejected]",
             "reason": "atomic push failed",
         },
+        {
+            "flag": "!",
+            "from_ref": "refs/heads/reject9",
+            "to_ref": "refs/heads/reject9",
+            "summary": "[remote rejected]",
+            "reason": "hook declined",
+        },
+        {
+            "flag": "!",
+            "from_ref": "refs/heads/reject10",
+            "to_ref": "refs/heads/reject10",
+            "summary": "[remote failure]",
+            "reason": "timeout",
+        },
+        {
+            "flag": "!",
+            "from_ref": "refs/heads/reject11",
+            "to_ref": "refs/heads/reject11",
+            "summary": "[no match]",
+            "reason": None,
+        },
+    ]
+
+    assert expected == actual
+
+
+def test_parse_push_malformed_lines():
+    s = io.StringIO(
+        """To github.com:test/repo.git
+\x20	refs/heads/good:refs/heads/good	be30154..bd80959
+malformed line without tabs
+another bad line
+\x20	refs/heads/good2:refs/heads/good2	ae0f96f..207e07b
+Done
+"""
+    )
+
+    actual = list(check_for_updated_refs.parse_push(s))
+    expected = [
+        {
+            "flag": " ",
+            "from_ref": "refs/heads/good",
+            "to_ref": "refs/heads/good",
+            "summary": "be30154..bd80959",
+            "reason": None,
+        },
+        {
+            "flag": " ",
+            "from_ref": "refs/heads/good2",
+            "to_ref": "refs/heads/good2",
+            "summary": "ae0f96f..207e07b",
+            "reason": None,
+        },
     ]
 
     assert expected == actual
 
 
 def test_process_push():
-    s = io.StringIO(
-        """
-To github.com:gsnedders/web-platform-tests.git
-=	refs/heads/a:refs/heads/a	[up to date]
--	:refs/heads/b	[deleted]
-+	refs/heads/c:refs/heads/c	a6eb923e19...9b6507e295 (forced update)
-*	refs/heads/d:refs/heads/d	[new branch]
-\x20	refs/heads/e:refs/heads/e	0acd8f62f1..6188942729
-!	refs/heads/f:refs/heads/f	[rejected] (atomic push failed)
-Done
-    """
-    )
+    s = io.StringIO(PUSH_OUTPUT)
 
-    actual = list(
-        check_for_updated_refs.process_push(
-            s,
-            [
-                "refs/heads/e",
-                "refs/heads/b",
-                "refs/heads/c",
-                "refs/heads/d",
-                "refs/heads/e",
-                "refs/heads/x",
-            ],
-        )
+    actual = check_for_updated_refs.process_push(
+        s,
+        [
+            "refs/heads/stable",  # Omitted as it wasn't actually updated.
+            "refs/heads/deleted",
+            "refs/heads/force",
+            "refs/heads/new",
+            "refs/tags/v1.0",
+            "refs/review/pr/123",
+            "refs/heads/main",
+            "refs/heads/feature",
+            "refs/heads/reject1",  # Omitted as it wasn't actually updated.
+            "refs/heads/nonexistent",  # Omitted as it wasn't actually updated.
+        ],
     )
-    expected = [
-        "refs/heads/b",
-        "refs/heads/c",
-        "refs/heads/d",
-        "refs/heads/e",
-    ]
+    expected = {
+        "refs/heads/deleted": None,
+        "refs/heads/force": "62ee8b6",
+        "refs/heads/new": None,
+        "refs/tags/v1.0": None,
+        "refs/review/pr/123": None,
+        "refs/heads/main": "fd86363",
+        "refs/heads/feature": "5105902",
+    }
 
     assert expected == actual
diff --git a/tests/wpt/tests/tools/wpt/browser.py b/tests/wpt/tests/tools/wpt/browser.py
index 2334942b48a..fde19df1db2 100644
--- a/tests/wpt/tests/tools/wpt/browser.py
+++ b/tests/wpt/tests/tools/wpt/browser.py
@@ -7,11 +7,12 @@ import re
 import shutil
 import stat
 import subprocess
+import sys
 import tempfile
 from abc import ABCMeta, abstractmethod
 from datetime import datetime, timedelta, timezone
 from shutil import which
-from typing import Any, Dict, Optional, Tuple
+from typing import Any, Dict, List, Optional, Tuple
 from urllib.parse import urlsplit, quote
 
 import html5lib
@@ -202,6 +203,235 @@ class Browser:
         return NotImplemented
 
 
+class FirefoxPrefs:
+    def __init__(self, logger):
+        self.logger = logger
+
+    def install_prefs(self, binary: Optional[str], dest: Optional[str] = None, channel: Optional[str] = None) -> str:
+        if binary and not binary.endswith(".apk"):
+            version, channel_, rev = self.get_version_and_channel(binary)
+            if channel is not None and channel != channel_:
+                # Beta doesn't always seem to have the b in the version string, so allow the
+                # manually supplied value to override the one from the binary
+                self.logger.warning("Supplied channel doesn't match binary, using supplied channel")
+            elif channel is None:
+                channel = channel_
+        else:
+            rev = None
+            version = None
+
+        if channel is None:
+            self.logger.warning("No browser channel passed to install_prefs, taking prefs from main branch")
+            channel = "nightly"
+
+        if dest is None:
+            dest = os.curdir
+
+        dest = os.path.join(dest, "profiles", rev if rev is not None else channel)
+        if version:
+            dest = os.path.join(dest, version)
+        have_cache = False
+        if os.path.exists(dest) and os.path.exists(os.path.join(dest, "profiles.json")):
+            if channel != "nightly":
+                have_cache = True
+            else:
+                now = datetime.now()
+                have_cache = (datetime.fromtimestamp(os.stat(dest).st_mtime) >
+                              now - timedelta(days=1))
+
+        # If we don't have a recent download, grab and extract the latest one
+        if not have_cache:
+            if os.path.exists(dest):
+                rmtree(dest)
+            os.makedirs(dest)
+
+            self.get_profile_github(version, channel, dest, rev)
+            self.logger.info(f"Test prefs downloaded to {dest}")
+        else:
+            self.logger.info(f"Using cached test prefs from {dest}")
+
+        return dest
+
+    def get_profile_github(self, version: Optional[str], channel: str, dest: str, rev: Optional[str]) -> None:
+        """Read the testing/profiles data from firefox source on GitHub"""
+
+        # There are several possible approaches here, none of which are great:
+        # 1. Shallow, sparse, clone of the repo with no history and just the testing/profiles
+        #    directory. This is too slow to be usable.
+        # 2. Use the Github repository contents API to read all the files under that directory.
+        #    This requires auth to not run into rate limits.
+        # 3. Gitub tree API has basically the same problems
+        # 4. Download a full archive of the relevant commit from Github and extract only the
+        #    required directory. This is also too slow to be useful.
+        #
+        # In the end we use githubusercontent.com, which has the problem that it doesn't allow
+        # directory listings. So we have to hardcode in all the files we need. In particular
+        # for each profile we are currently just downloading the user.js file and ignoring the
+        # extensions/ directory, which is currently unused.
+        ref = self.get_git_ref(version, channel, rev)
+        self.logger.info(f"Getting profile data from git ref {ref}")
+        file_data = {}
+        profiles_bytes = get_file_github("mozilla-firefox/firefox", ref, "testing/profiles/profiles.json")
+        profiles = json.loads(profiles_bytes)
+        file_data["profiles.json"] = profiles_bytes
+        for subdir in profiles["web-platform-tests"]:
+            rel_path = os.path.join(subdir, "user.js")
+            file_data[rel_path] = get_file_github("mozilla-firefox/firefox",
+                                                  ref,
+                                                  f"testing/profiles/{subdir}/user.js")
+
+        for path, data in file_data.items():
+            dest_path = os.path.join(dest, path)
+            os.makedirs(os.path.dirname(dest_path), exist_ok=True)
+            with open(dest_path, "wb") as f:
+                f.write(data)
+
+    def get_version_and_channel(self, binary: str) -> Tuple[Optional[str], str, Optional[str]]:
+        application_ini_path = os.path.join(os.path.dirname(binary), "application.ini")
+        if os.path.exists(application_ini_path):
+            try:
+                return self.get_version_and_channel_application_ini(application_ini_path)
+            except ValueError as e:
+                self.logger.info(f"Reading application ini file failed: {e}")
+                # Fall back to calling the binary
+        version_string: str = call(binary, "--version").strip()  # type: ignore
+        version_re = re.compile(r"Mozilla Firefox (.*)")
+        m = version_re.match(version_string)
+        if not m:
+            return None, "nightly", None
+        version, channel = self.extract_version_number(m.group(1))
+        return version, channel, None
+
+    def get_version_and_channel_application_ini(self, path: str) -> Tuple[Optional[str], str, Optional[str]]:
+        """Try to read application version from an ini file
+
+        This doesn't work in all cases e.g. local builds don't have
+        all the information, or builds where the binary path is a shell
+        script or similar."""
+        config = configparser.ConfigParser()
+        paths = config.read(path)
+        if path not in paths:
+            raise ValueError("Failed to read config file")
+
+        version = config.get("App", "Version", fallback=None)
+        if version is None:
+            raise ValueError("Failed to find Version key")
+        version, channel = self.extract_version_number(version)
+
+        rev = None
+        if channel == "nightly":
+            source_repo = config.get("App", "SourceRepository", fallback=None)
+            commit = config.get("App", "SourceStamp", fallback=None)
+            if source_repo is not None and commit is not None:
+                if source_repo.startswith("https://hg.mozilla.org"):
+                    try:
+                        commit_data: Dict[str, Any] = get(
+                            f"https://hg-edge.mozilla.org/integration/autoland/json-rev/{commit}"
+                        ).json()  # type: ignore
+                        rev = commit_data.get("git_commit")
+                    except Exception:
+                        pass
+                else:
+                    rev = commit
+
+        return version, channel, rev
+
+    def extract_version_number(self, version_string: str) -> Tuple[Optional[str], str]:
+        version_parser = re.compile(r"^(\d+)\.(\d+)(?:\.(\d+))?((a|b)\d+)?")
+        m = version_parser.match(version_string)
+        if not m:
+            return None, "nightly"
+        major, minor, patch, pre, channel_id = m.groups()
+        version = f"{major}.{minor}"
+        if patch is not None:
+            version += f".{patch}"
+        if pre is not None:
+            version += pre
+        channel = {"a": "nightly", "b": "beta"}.get(channel_id, "stable")
+        return version, channel
+
+    def get_git_tags(self, ref_prefix: str) -> List[str]:
+        tags = []
+        for tag_data in get(
+                f"https://api.github.com/repos/mozilla-firefox/firefox/git/matching-refs/tags/{ref_prefix}"
+        ).json():  # type: ignore
+            tag = tag_data["ref"].rsplit("/", 1)[1]
+            tags.append(tag)
+        return tags
+
+    def get_git_ref(self, version: Optional[str], channel: str, rev: Optional[str]) -> str:
+        if rev is not None:
+            return rev
+
+        ref_prefix = "FIREFOX_"
+        ref_re = None
+        tags = []
+
+        if channel == "stable":
+            if version:
+                return "FIREFOX_%s_RELEASE" % version.replace(".", "_")
+            ref_re = re.compile(r"FIREFOX_(\d+)_(\d+)(?:_(\d+))?_RELEASE")
+        elif channel == "beta":
+            if version:
+                ref_prefix = "FIREFOX_%s" % version.replace(".", "_")
+                if "b" not in version:
+                    ref_re = re.compile(fr"{ref_prefix}b(\d+)_(?:BUILD(\d+)|RELEASE)")
+                else:
+                    ref_re = re.compile(fr"{ref_prefix}_(?:BUILD(\d+)|RELEASE)")
+            else:
+                ref_re = re.compile(r"FIREFOX_(\d+)_(\d+)b(\d+)_(?:BUILD(\d+)|RELEASE)")
+        else:
+            return "main"
+
+        assert ref_re is not None
+
+        for tag in self.get_git_tags(ref_prefix):
+            m = ref_re.match(tag)
+            if not m:
+                continue
+            order = [int(item) for item in m.groups() if item is not None]
+            if channel == "beta" and tag.endswith("_RELEASE"):
+                order[-1] = sys.maxsize
+            tags.append((tuple(order), tag))
+        if not tags:
+            raise ValueError(f"No tag found for version {version} channel {channel}")
+        return max(tags)[1]
+
+
+class FirefoxAndroidPrefs(FirefoxPrefs):
+    def get_git_ref(self, version: Optional[str], channel: str, rev: Optional[str]) -> str:
+        if rev is not None:
+            return rev
+
+        tags = []
+        ref_prefix = "FIREFOX-ANDROID_"
+        ref_re = None
+        if channel == "stable":
+            if version is not None:
+                return "FIREFOX-ANDROID_%s_RELEASE" % version.replace(".", "_")
+
+            ref_re = re.compile(r"FIREFOX-ANDROID_(\d+)_(\d+)(?:_(\d+))?_RELEASE")
+
+        elif channel == "beta":
+            if version:
+                ref_prefix = "FIREFOX-ANDROID_%s" % version.replace(".", "_")
+            ref_re = re.compile(r"FIREFOX-ANDROID_(\d+)_(\d+)b(\d+)_RELEASE")
+        else:
+            return "main"
+
+        assert ref_re is not None
+        for tag in self.get_git_tags(ref_prefix):
+            m = ref_re.match(tag)
+            if m is None:
+                continue
+            order = tuple(int(item) for item in m.groups() if item is not None)
+            tags.append((order, tag))
+
+        if not tags:
+            raise ValueError(f"No tag found for {version} beta")
+        return max(tags)[1]
+
+
 class Firefox(Browser):
     """Firefox-specific interface.
 
@@ -303,6 +533,9 @@ class Firefox(Browser):
         os.remove(installer_path)
         return self.find_binary_path(dest)
 
+    def install_prefs(self, binary, dest=None, channel=None):
+        return FirefoxPrefs(self.logger).install_prefs(binary, dest, channel)
+
     def find_binary_path(self, path=None, channel="nightly"):
         """Looks for the firefox binary in the virtual environment"""
 
@@ -366,172 +599,6 @@ class Firefox(Browser):
     def find_webdriver(self, venv_path=None, channel=None):
         return which("geckodriver")
 
-    def extract_version_number(self, version_string: str) -> Tuple[Optional[str], str]:
-        version_parser = re.compile(r"^(\d+)\.(\d+)(?:\.(\d+))?((a|b)\d+)?")
-        m = version_parser.match(version_string)
-        if not m:
-            return None, "nightly"
-        major, minor, patch, pre, channel_id = m.groups()
-        version = f"{major}.{minor}"
-        if patch is not None:
-            version += f".{patch}"
-        if pre is not None:
-            version += pre
-        channel = {"a": "nightly", "b": "beta"}.get(channel_id, "stable")
-        return version, channel
-
-    def get_version_and_channel(self, binary: str) -> Tuple[Optional[str], str, Optional[str]]:
-        application_ini_path = os.path.join(os.path.dirname(binary), "application.ini")
-        if os.path.exists(application_ini_path):
-            try:
-                return self.get_version_and_channel_application_ini(application_ini_path)
-            except ValueError as e:
-                self.logger.info(f"Reading application ini file failed: {e}")
-                # Fall back to calling the binary
-        version_string: str = call(binary, "--version").strip()  # type: ignore
-        version_re = re.compile(r"Mozilla Firefox (.*)")
-        m = version_re.match(version_string)
-        if not m:
-            return None, "nightly", None
-        version, channel = self.extract_version_number(m.group(1))
-        return version, channel, None
-
-    def get_version_and_channel_application_ini(self, path: str) -> Tuple[Optional[str], str, Optional[str]]:
-        """Try to read application version from an ini file
-
-        This doesn't work in all cases e.g. local builds don't have
-        all the information, or builds where the binary path is a shell
-        script or similar."""
-        config = configparser.ConfigParser()
-        paths = config.read(path)
-        if path not in paths:
-            raise ValueError("Failed to read config file")
-
-        version = config.get("App", "Version", fallback=None)
-        if version is None:
-            raise ValueError("Failed to find Version key")
-        version, channel = self.extract_version_number(version)
-
-        rev = None
-        if channel == "nightly":
-            source_repo = config.get("App", "SourceRepository", fallback=None)
-            commit = config.get("App", "SourceStamp", fallback=None)
-            if source_repo is not None and commit is not None:
-                if source_repo.startswith("https://hg.mozilla.org"):
-                    try:
-                        commit_data: Dict[str, Any] = get(
-                            f"https://hg-edge.mozilla.org/integration/autoland/json-rev/{commit}"
-                        ).json()  # type: ignore
-                        rev = commit_data.get("git_commit")
-                    except Exception:
-                        pass
-                else:
-                    rev = commit
-
-        return version, channel, rev
-
-    def get_git_ref(self, version: str, channel: str, rev: Optional[str]) -> str:
-        if rev is not None:
-            return rev
-
-        if channel == "stable":
-            return "FIREFOX_%s_RELEASE" % version.replace(".", "_")
-
-        if channel == "beta":
-            ref_prefix = "FIREFOX_%s" % version.replace(".", "_")
-            tags = []
-            build_re = re.compile(fr"{ref_prefix}_BUILD(\d)+")
-            for tag_data in get(
-                    f"https://api.github.com/repos/mozilla-firefox/firefox/git/matching-refs/tags/{ref_prefix}"
-            ).json():  # type: ignore
-                tag = tag_data["ref"].rsplit("/", 1)[1]
-                if tag.endswith("_RELEASE"):
-                    tags = [(0, tag)]
-                    break
-                m = build_re.match(tag)
-                if m:
-                    tags.append((int(m.group(1)), tag))
-            tags.sort()
-            if not tags:
-                raise ValueError(f"No tag found for {version} beta")
-            return f"{tags[-1][1]}"
-
-        return "main"
-
-    def get_profile_github(self, version: str, channel: str, dest: str, rev: Optional[str]) -> None:
-        """Read the testing/profiles data from firefox source on GitHub"""
-
-        # There are several possible approaches here, none of which are great:
-        # 1. Shallow, sparse, clone of the repo with no history and just the testing/profiles
-        #    directory. This is too slow to be usable.
-        # 2. Use the Github repository contents API to read all the files under that directory.
-        #    This requires auth to not run into rate limits.
-        # 3. Gitub tree API has basically the same problems
-        # 4. Download a full archive of the relevant commit from Github and extract only the
-        #    required directory. This is also too slow to be useful.
-        #
-        # In the end we use githubusercontent.com, which has the problem that it doesn't allow
-        # directory listings. So we have to hardcode in all the files we need. In particular
-        # for each profile we are currently just downloading the user.js file and ignoring the
-        # extensions/ directory, which is currently unused.
-        ref = self.get_git_ref(version, channel, rev)
-        file_data = {}
-        profiles_bytes = get_file_github("mozilla-firefox/firefox", ref, "testing/profiles/profiles.json")
-        profiles = json.loads(profiles_bytes)
-        file_data["profiles.json"] = profiles_bytes
-        for subdir in profiles["web-platform-tests"]:
-            rel_path = os.path.join(subdir, "user.js")
-            file_data[rel_path] = get_file_github("mozilla-firefox/firefox",
-                                                  ref,
-                                                  f"testing/profiles/{subdir}/user.js")
-
-        for path, data in file_data.items():
-            dest_path = os.path.join(dest, path)
-            os.makedirs(os.path.dirname(dest_path), exist_ok=True)
-            with open(dest_path, "wb") as f:
-                f.write(data)
-
-    def install_prefs(self, binary, dest=None, channel=None):
-        if binary and not binary.endswith(".apk"):
-            version, channel_, rev = self.get_version_and_channel(binary)
-            if channel is not None and channel != channel_:
-                # Beta doesn't always seem to have the b in the version string, so allow the
-                # manually supplied value to override the one from the binary
-                self.logger.warning("Supplied channel doesn't match binary, using supplied channel")
-            elif channel is None:
-                channel = channel_
-        else:
-            rev = None
-            version = None
-
-        if dest is None:
-            dest = os.curdir
-
-        dest = os.path.join(dest, "profiles", rev if rev is not None else channel)
-        if version:
-            dest = os.path.join(dest, version)
-        have_cache = False
-        if os.path.exists(dest) and os.path.exists(os.path.join(dest, "profiles.json")):
-            if channel != "nightly":
-                have_cache = True
-            else:
-                now = datetime.now()
-                have_cache = (datetime.fromtimestamp(os.stat(dest).st_mtime) >
-                              now - timedelta(days=1))
-
-        # If we don't have a recent download, grab and extract the latest one
-        if not have_cache:
-            if os.path.exists(dest):
-                rmtree(dest)
-            os.makedirs(dest)
-
-            self.get_profile_github(version, channel, dest, rev)
-            self.logger.info(f"Test prefs downloaded to {dest}")
-        else:
-            self.logger.info(f"Using cached test prefs from {dest}")
-
-        return dest
-
     def _latest_geckodriver_version(self):
         """Get and return latest version number for geckodriver."""
         # This is used rather than an API call to avoid rate limits
@@ -654,7 +721,7 @@ class FirefoxAndroid(Browser):
         return self.download(dest, channel)
 
     def install_prefs(self, binary, dest=None, channel=None):
-        return self._fx_browser.install_prefs(binary, dest, channel)
+        return FirefoxAndroidPrefs(self.logger).install_prefs(binary, dest, channel)
 
     def find_binary(self, venv_path=None, channel=None):
         return self.apk_path
diff --git a/tests/wpt/tests/tools/wpt/utils.py b/tests/wpt/tests/tools/wpt/utils.py
index 51bb3f55dc9..258bf05cad7 100644
--- a/tests/wpt/tests/tools/wpt/utils.py
+++ b/tests/wpt/tests/tools/wpt/utils.py
@@ -145,7 +145,7 @@ def get_download_to_descriptor(fd, url, max_retries=5):
                 # Maximum retries or unknown error
                 raise
 
-def rmtree(path):
+def rmtree(path: str) -> None:
     # This works around two issues:
     # 1. Cannot delete read-only files owned by us (e.g. files extracted from tarballs)
     # 2. On Windows, we sometimes just need to retry in case the file handler
diff --git a/tests/wpt/tests/web-animations/animation-trigger/event-trigger-alternate.tentative.html b/tests/wpt/tests/web-animations/animation-trigger/event-trigger-alternate.tentative.html
new file mode 100644
index 00000000000..6929c4cd38a
--- /dev/null
+++ b/tests/wpt/tests/web-animations/animation-trigger/event-trigger-alternate.tentative.html
@@ -0,0 +1,61 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <link rel="help" href="https://drafts.csswg.org/web-animations-2#animation-trigger">
+    <script src="/resources/testdriver.js"></script>
+    <script src="/resources/testdriver-vendor.js"></script>
+    <script src="/resources/testharness.js"></script>
+    <script src="/resources/testharnessreport.js"></script>
+    <script src="/web-animations/testcommon.js"></script>
+  </head>
+  <body>
+    <div id="event-target">Click me!</div>
+
+    <div id="animation-target">Watch me!</div>
+    <script>
+      promise_test(async (test) => {
+        const eventTarget = document.getElementById("event-target");
+        const animationTarget = document.getElementById("animation-target");
+        const ANIMATION_DURATION_MS = 100000;
+        const animation = new Animation(
+          new KeyframeEffect(
+            animationTarget,
+            [
+              { transform: "translateY(0)" },
+              { transform: "translateY(3rem)" },
+            ],
+            { duration: ANIMATION_DURATION_MS, fill: "both" }
+          ));
+        const trigger = new EventTrigger({
+          behavior: "alternate",
+          eventType: "click",
+          eventTarget: eventTarget
+        });
+        trigger.addAnimation(animation);
+        await waitForAnimationFrames(1);
+        assert_equals(animation.playState, "idle", "animation is idle");
+        assert_equals(animation.playbackRate, 1, "playbackRate is initially 1");
+        await test_driver.click(eventTarget);
+        await waitForAnimationFrames(1);
+        assert_equals(animation.playState, "running", "animation is running after first click");
+        assert_equals(animation.playbackRate, 1, "playbackRate is 1 after first click");
+
+        // Advance to middle of duration so that animation doesn't finish too
+        // quickly after reversing.
+        animation.currentTime = animation.startTime + (ANIMATION_DURATION_MS/2);
+        await waitForAnimationFrames(1);
+
+        await test_driver.click(eventTarget);
+        await waitForAnimationFrames(1);
+        assert_equals(animation.playState, "running", "animation is running after second click");
+        assert_equals(animation.playbackRate, -1, "playbackRate is -1 after second click");
+        animation.pause();
+        await waitForAnimationFrames(1);
+        await test_driver.click(eventTarget);
+        await waitForAnimationFrames(1);
+        assert_equals(animation.playState, "running", "animation is running after third click");
+        assert_equals(animation.playbackRate, 1, "playbackRate is 1 after third click");
+      }, "Basic event-based animation-trigger with 'alternate' behavior");
+    </script>
+  </body>
+</html>
diff --git a/tests/wpt/tests/web-animations/animation-trigger/event-trigger-before-handlers.tentative.html b/tests/wpt/tests/web-animations/animation-trigger/event-trigger-before-handlers.tentative.html
new file mode 100644
index 00000000000..715c5bcddfc
--- /dev/null
+++ b/tests/wpt/tests/web-animations/animation-trigger/event-trigger-before-handlers.tentative.html
@@ -0,0 +1,50 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <link rel="help" href="https://drafts.csswg.org/web-animations-2#animation-trigger">
+    <script src="/resources/testdriver.js"></script>
+    <script src="/resources/testdriver-vendor.js"></script>
+    <script src="/resources/testharness.js"></script>
+    <script src="/resources/testharnessreport.js"></script>
+    <script src="/web-animations/testcommon.js"></script>
+  </head>
+  <body>
+    <div id="event-target">Click me!</div>
+
+    <div id="animation-target">Watch me!</div>
+    <script>
+      promise_test(async (test) => {
+        const eventTarget = document.getElementById("event-target");
+        const animationTarget = document.getElementById("animation-target");
+        const ANIMATION_DURATION_MS = 10000;
+        const animation = new Animation(
+          new KeyframeEffect(
+            animationTarget,
+            [
+              { transform: "translateY(0)" },
+              { transform: "translateY(3rem)" },
+            ],
+            { duration: ANIMATION_DURATION_MS, fill: "both" }
+          ));
+        let listenerRan = false;
+        eventTarget.addEventListener("click", evt => {
+          listenerRan = true;
+          assert_equals(
+            animation.playState, "running",
+            "Animation is already running when event listener runs");
+        });
+        const trigger = new EventTrigger({
+          behavior: "once",
+          eventType: "click",
+          eventTarget: eventTarget
+        });
+        trigger.addAnimation(animation);
+        await waitForAnimationFrames(2);
+        assert_equals(animation.playState, "idle", "animation is idle");
+        await test_driver.click(eventTarget);
+        await waitForAnimationFrames(1);
+        assert_true(listenerRan, "Click event listener ran.");
+      }, "Animation triggers are handled before registered event listeners");
+    </script>
+  </body>
+</html>
diff --git a/tests/wpt/tests/web-animations/animation-trigger/event-trigger-once.tentative.html b/tests/wpt/tests/web-animations/animation-trigger/event-trigger-once.tentative.html
new file mode 100644
index 00000000000..76b31373c14
--- /dev/null
+++ b/tests/wpt/tests/web-animations/animation-trigger/event-trigger-once.tentative.html
@@ -0,0 +1,49 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <link rel="help" href="https://drafts.csswg.org/web-animations-2#animation-trigger">
+    <script src="/resources/testdriver.js"></script>
+    <script src="/resources/testdriver-vendor.js"></script>
+    <script src="/resources/testharness.js"></script>
+    <script src="/resources/testharnessreport.js"></script>
+    <script src="/web-animations/testcommon.js"></script>
+  </head>
+  <body>
+    <div id="event-target">Click me!</div>
+
+    <div id="animation-target">Watch me!</div>
+    <script>
+      promise_test(async (test) => {
+        const eventTarget = document.getElementById("event-target");
+        const animationTarget = document.getElementById("animation-target");
+        const ANIMATION_DURATION_MS = 10000;
+        const animation = new Animation(
+          new KeyframeEffect(
+            animationTarget,
+            [
+              { transform: "translateY(0)" },
+              { transform: "translateY(3rem)" },
+            ],
+            { duration: ANIMATION_DURATION_MS, fill: "both" }
+          ));
+        const trigger = new EventTrigger({
+          behavior: "once",
+          eventType: "click",
+          eventTarget: eventTarget
+        });
+        trigger.addAnimation(animation);
+        await waitForAnimationFrames(1);
+        assert_equals(animation.playState, "idle", "animation is idle");
+        await test_driver.click(eventTarget);
+        await waitForAnimationFrames(1);
+        assert_equals(animation.playState, "running", "animation is running");
+        animation.finish();
+        await waitForAnimationFrames(1);
+        assert_equals(animation.playState, "finished", "animation is finished");
+        await test_driver.click(eventTarget);
+        await waitForAnimationFrames(1);
+        assert_equals(animation.playState, "finished", "animation is still finished");
+      }, "Basic event-based animation-trigger with 'once' behavior");
+    </script>
+  </body>
+</html>
diff --git a/tests/wpt/tests/web-animations/animation-trigger/event-trigger-repeat.tentative.html b/tests/wpt/tests/web-animations/animation-trigger/event-trigger-repeat.tentative.html
new file mode 100644
index 00000000000..e54e19f1fee
--- /dev/null
+++ b/tests/wpt/tests/web-animations/animation-trigger/event-trigger-repeat.tentative.html
@@ -0,0 +1,61 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <link rel="help" href="https://drafts.csswg.org/web-animations-2#animation-trigger">
+    <script src="/resources/testdriver.js"></script>
+    <script src="/resources/testdriver-vendor.js"></script>
+    <script src="/resources/testharness.js"></script>
+    <script src="/resources/testharnessreport.js"></script>
+    <script src="/web-animations/testcommon.js"></script>
+  </head>
+  <body>
+    <div id="event-target">Click me!</div>
+
+    <div id="animation-target">Watch me!</div>
+    <script>
+      promise_test(async (test) => {
+        const eventTarget = document.getElementById("event-target");
+        const animationTarget = document.getElementById("animation-target");
+        const ANIMATION_DURATION_MS = 10000;
+        const animation = new Animation(
+          new KeyframeEffect(
+            animationTarget,
+            [
+              { transform: "translateY(0)" },
+              { transform: "translateY(3rem)" },
+            ],
+            { duration: ANIMATION_DURATION_MS, fill: "both" }
+          ));
+        const trigger = new EventTrigger({
+          behavior: "repeat",
+          eventType: "click",
+          eventTarget: eventTarget
+        });
+        trigger.addAnimation(animation);
+        await waitForAnimationFrames(1);
+        assert_equals(animation.playState, "idle", "animation is idle");
+        await test_driver.click(eventTarget);
+        await waitForAnimationFrames(3);
+        assert_equals(animation.playState, "running", "animation is running");
+        assert_less_than(0, animation.overallProgress, "Animation has progressed");
+        let progress = animation.overallProgress;
+        await test_driver.click(eventTarget);
+        await waitForAnimationFrames(1);
+        assert_equals(animation.playState, "running", "animation is still running");
+        assert_less_than(animation.overallProgress, progress, "Progress has been reset");
+        animation.finish();
+        await waitForAnimationFrames(1);
+        assert_equals(animation.playState, "finished", "Animation has finished");
+        await test_driver.click(eventTarget);
+        await waitForAnimationFrames(1);
+        assert_equals(animation.playState, "running", "animation is running again");
+        animation.pause();
+        await waitForAnimationFrames(1);
+        assert_equals(animation.playState, "paused", "Animation is paused");
+        await test_driver.click(eventTarget);
+        await waitForAnimationFrames(1);
+        assert_equals(animation.playState, "running", "animation is running after pause");
+      }, "Basic event-based animation-trigger with 'repeat' behavior");
+    </script>
+  </body>
+</html>
diff --git a/tests/wpt/tests/web-animations/animation-trigger/event-trigger-state.tentative.html b/tests/wpt/tests/web-animations/animation-trigger/event-trigger-state.tentative.html
new file mode 100644
index 00000000000..2bc3e6d718b
--- /dev/null
+++ b/tests/wpt/tests/web-animations/animation-trigger/event-trigger-state.tentative.html
@@ -0,0 +1,49 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <link rel="help" href="https://drafts.csswg.org/web-animations-2#animation-trigger">
+    <script src="/resources/testdriver.js"></script>
+    <script src="/resources/testdriver-vendor.js"></script>
+    <script src="/resources/testharness.js"></script>
+    <script src="/resources/testharnessreport.js"></script>
+    <script src="/web-animations/testcommon.js"></script>
+  </head>
+  <body>
+    <div id="event-target">Click me!</div>
+
+    <div id="animation-target">Watch me!</div>
+    <script>
+      promise_test(async (test) => {
+        const eventTarget = document.getElementById("event-target");
+        const animationTarget = document.getElementById("animation-target");
+        const ANIMATION_DURATION_MS = 100000;
+        const animation = new Animation(
+          new KeyframeEffect(
+            animationTarget,
+            [
+              { transform: "translateY(0)" },
+              { transform: "translateY(3rem)" },
+            ],
+            { duration: ANIMATION_DURATION_MS, fill: "both" }
+          ));
+        const trigger = new EventTrigger({
+          behavior: "state",
+          eventType: "click",
+          eventTarget: eventTarget
+        });
+        trigger.addAnimation(animation);
+        await waitForAnimationFrames(1);
+        assert_equals(animation.playState, "idle", "animation is idle");
+        await test_driver.click(eventTarget);
+        await waitForAnimationFrames(1);
+        assert_equals(animation.playState, "running", "animation is running");
+        await test_driver.click(eventTarget);
+        await waitForAnimationFrames(1);
+        assert_equals(animation.playState, "paused", "animation is paused");
+        await test_driver.click(eventTarget);
+        await waitForAnimationFrames(1);
+        assert_equals(animation.playState, "running", "animation is running");
+      }, "Basic event-based animation-trigger with 'state' behavior");
+    </script>
+  </body>
+</html>
diff --git a/tests/wpt/tests/webaudio/the-audio-api/the-audiobuffersourcenode-interface/audiosource-onended.html b/tests/wpt/tests/webaudio/the-audio-api/the-audiobuffersourcenode-interface/audiosource-onended.html
index 20ef4a1c638..ed15c2a40b7 100644
--- a/tests/wpt/tests/webaudio/the-audio-api/the-audiobuffersourcenode-interface/audiosource-onended.html
+++ b/tests/wpt/tests/webaudio/the-audio-api/the-audiobuffersourcenode-interface/audiosource-onended.html
@@ -2,100 +2,95 @@
 <html>
   <head>
     <title>
-      Test Onended Event Listener
+      Test Onended Event Listener for AudioBufferSourceNode and OscillatorNode
     </title>
     <script src="/resources/testharness.js"></script>
     <script src="/resources/testharnessreport.js"></script>
     <script src="/webaudio/resources/audit-util.js"></script>
-    <script src="/webaudio/resources/audit.js"></script>
   </head>
   <body>
-    <script id="layout-test-code">
-      let sampleRate = 44100;
-      let renderLengthSeconds = 1;
-      let renderLengthFrames = renderLengthSeconds * sampleRate;
+    <script>
+      const sampleRate = 44100;
+      const renderLengthSeconds = 1;
+      const renderLengthFrames = renderLengthSeconds * sampleRate;
 
       // Length of the source buffer.  Anything less than the render length is
       // fine.
-      let sourceBufferLengthFrames = renderLengthFrames / 8;
+      const sourceBufferLengthFrames = renderLengthFrames / 8;
       // When to stop the oscillator.  Anything less than the render time is
       // fine.
-      let stopTime = renderLengthSeconds / 8;
+      const stopTime = renderLengthSeconds / 8;
 
-      let audit = Audit.createTaskRunner();
-
-      audit.define('absn-set-onended', (task, should) => {
+      promise_test(async (t) => {
         // Test that the onended event for an AudioBufferSourceNode is fired
         // when it is set directly.
-        let context =
-            new OfflineAudioContext(1, renderLengthFrames, sampleRate);
-        let buffer = context.createBuffer(
-            1, sourceBufferLengthFrames, context.sampleRate);
-        let source = context.createBufferSource();
-        source.buffer = buffer;
+        const context = new OfflineAudioContext(
+            1, renderLengthFrames, sampleRate);
+        const buffer = new AudioBuffer({length: sourceBufferLengthFrames,
+            numberOfChannels: 1, sampleRate: context.sampleRate});
+        const source = new AudioBufferSourceNode(context, {buffer: buffer});
         source.connect(context.destination);
-        source.onended = function(e) {
-          should(
-              true, 'AudioBufferSource.onended called when ended set directly')
-              .beEqualTo(true);
+        source.onended = (e) => {
+          assert_true(
+              true, 'AudioBufferSource.onended called when ended set directly');
         };
         source.start();
-        context.startRendering().then(() => task.done());
-      });
+        await context.startRendering();
+      }, 'absn-set-onended: onended event fires for AudioBufferSourceNode ' +
+          'when set directly');
 
-      audit.define('absn-add-listener', (task, should) => {
+      promise_test(async (t) => {
         // Test that the onended event for an AudioBufferSourceNode is fired
         // when addEventListener is used to set the handler.
-        let context =
-            new OfflineAudioContext(1, renderLengthFrames, sampleRate);
-        let buffer = context.createBuffer(
-            1, sourceBufferLengthFrames, context.sampleRate);
-        let source = context.createBufferSource();
-        source.buffer = buffer;
+        const context = new OfflineAudioContext(
+            1, renderLengthFrames, sampleRate);
+        const buffer = new AudioBuffer({length: sourceBufferLengthFrames,
+            numberOfChannels: 1, sampleRate: context.sampleRate});
+        const source = new AudioBufferSourceNode(context, {buffer: buffer});
         source.connect(context.destination);
-        source.addEventListener('ended', function(e) {
-          should(
+        source.addEventListener('ended', (e) => {
+          assert_true(
               true,
-              'AudioBufferSource.onended called when using addEventListener')
-              .beEqualTo(true);
+              'AudioBufferSource.onended called when using addEventListener');
         });
         source.start();
-        context.startRendering().then(() => task.done());
-      });
+        await context.startRendering();
+      }, 'absn-add-listener: onended event fires for AudioBufferSourceNode ' +
+          'when using addEventListener');
 
-      audit.define('osc-set-onended', (task, should) => {
+      promise_test(async (t) => {
         // Test that the onended event for an OscillatorNode is fired when it is
         // set directly.
-        let context =
-            new OfflineAudioContext(1, renderLengthFrames, sampleRate);
-        let source = context.createOscillator();
+        const context = new OfflineAudioContext(
+            1, renderLengthFrames, sampleRate);
+        const source = new OscillatorNode(context);
         source.connect(context.destination);
-        source.onended = function(e) {
-          should(true, 'Oscillator.onended called when ended set directly')
-              .beEqualTo(true);
+        source.onended = (e) => {
+          assert_true(
+              true, 'Oscillator.onended called when ended set directly');
         };
         source.start();
         source.stop(stopTime);
-        context.startRendering().then(() => task.done());
-      });
+        await context.startRendering();
+      }, 'osc-set-onended: onended event fires for OscillatorNode ' +
+          'when set directly');
 
-      audit.define('osc-add-listener', (task, should) => {
+      promise_test(async (t) => {
         // Test that the onended event for an OscillatorNode is fired when
         // addEventListener is used to set the handler.
-        let context =
-            new OfflineAudioContext(1, renderLengthFrames, sampleRate);
-        let source = context.createOscillator();
+        const context = new OfflineAudioContext(
+            1, renderLengthFrames, sampleRate);
+        const source = new OscillatorNode(context);
         source.connect(context.destination);
-        source.addEventListener('ended', function(e) {
-          should(true, 'Oscillator.onended called when using addEventListener')
-              .beEqualTo(true);
+        source.addEventListener('ended', (e) => {
+          assert_true(
+              true, 'Oscillator.onended called when using addEventListener');
         });
         source.start();
         source.stop(stopTime);
-        context.startRendering().then(() => task.done());
-      });
-
-      audit.run();
+        await context.startRendering();
+      }, 'osc-add-listener: onended event fires for OscillatorNode ' +
+          'when using addEventListener');
     </script>
   </body>
 </html>
diff --git a/tests/wpt/tests/webaudio/the-audio-api/the-scriptprocessornode-interface/simple-input-output.html b/tests/wpt/tests/webaudio/the-audio-api/the-scriptprocessornode-interface/simple-input-output.html
index 7fd20e67a70..1bbe3303a43 100644
--- a/tests/wpt/tests/webaudio/the-audio-api/the-scriptprocessornode-interface/simple-input-output.html
+++ b/tests/wpt/tests/webaudio/the-audio-api/the-scriptprocessornode-interface/simple-input-output.html
@@ -1,98 +1,84 @@
-<!doctype html>
+<!DOCTYPE html>
 <html>
-  <head>
-    <title>Test ScriptProcessorNode</title>
-    <script src="/resources/testharness.js"></script>
-    <script src="/resources/testharnessreport.js"></script>
-    <script src="/webaudio/resources/audit-util.js"></script>
-    <script src="/webaudio/resources/audit.js"></script>
-  </head>
+<head>
+  <title>Test ScriptProcessorNode</title>
+  <script src="/resources/testharness.js"></script>
+  <script src="/resources/testharnessreport.js"></script>
+  <script src="/webaudio/resources/audit-util.js"></script>
+</head>
+<body>
+  <script>
+    // Arbitrary sample rate
+    const sampleRate = 48000;
 
-  <body>
-    <script>
-      // Arbitrary sample rate
-      const sampleRate = 48000;
-      let audit = Audit.createTaskRunner();
+    promise_test(async (t) => {
+      // Two channels for testing.  Channel 0 is the output of the
+      // scriptProcessor.  Channel 1 is the oscillator so we can compare
+      // the outputs.
+      const context = new OfflineAudioContext({
+        numberOfChannels: 2,
+        length: sampleRate,
+        sampleRate: sampleRate});
 
-      audit.define(
-          {
-            label: 'test',
-            description: 'ScriptProcessor with stopped input source'
-          },
-          (task, should) => {
-            // Two channels for testing.  Channel 0 is the output of the
-            // scriptProcessor.  Channel 1 is the oscillator so we can compare
-            // the outputs.
-            let context = new OfflineAudioContext({
-              numberOfChannels: 2,
-              length: sampleRate,
-              sampleRate: sampleRate
-            });
+      const merger = new ChannelMergerNode(
+          context, {numberOfChannels: context.destination.channelCount});
+      merger.connect(context.destination);
 
-            let merger = new ChannelMergerNode(
-                context, {numberOfChannels: context.destination.channelCount});
-            merger.connect(context.destination);
+      const src = new OscillatorNode(context);
 
-            let src = new OscillatorNode(context);
+      // Arbitrary buffer size for the ScriptProcessorNode.  Don't use 0;
+      // we need to know the actual size to know the latency of the node
+      // (easily).
+      const spnSize = 512;
+      const spn = context.createScriptProcessor(spnSize, 1, 1);
 
-            // Arbitrary buffer size for the ScriptProcessorNode.  Don't use 0;
-            // we need to know the actual size to know the latency of the node
-            // (easily).
-            const spnSize = 512;
-            let spn = context.createScriptProcessor(spnSize, 1, 1);
+      // Arrange for the ScriptProcessor to add |offset| to the input.
+      const offset = 1;
+      spn.onaudioprocess = (event) => {
+        const input = event.inputBuffer.getChannelData(0);
+        const output = event.outputBuffer.getChannelData(0);
+        for (let k = 0; k < output.length; ++k) {
+          output[k] = input[k] + offset;
+        }
+      };
 
-            // Arrange for the ScriptProcessor to add |offset| to the input.
-            const offset = 1;
-            spn.onaudioprocess = (event) => {
-              let input = event.inputBuffer.getChannelData(0);
-              let output = event.outputBuffer.getChannelData(0);
-              for (let k = 0; k < output.length; ++k) {
-                output[k] = input[k] + offset;
-              }
-            };
+      src.connect(spn).connect(merger, 0, 0);
+      src.connect(merger, 0, 1);
 
-            src.connect(spn).connect(merger, 0, 0);
-            src.connect(merger, 0, 1);
+      // Start and stop the source.  The stop time is fairly arbitrary,
+      // but use a render quantum boundary for simplicity.
+      const stopFrame = RENDER_QUANTUM_FRAMES;
+      src.start();
+      src.stop(stopFrame / context.sampleRate);
 
-            // Start and stop the source.  The stop time is fairly arbitrary,
-            // but use a render quantum boundary for simplicity.
-            const stopFrame = RENDER_QUANTUM_FRAMES;
-            src.start(0);
-            src.stop(stopFrame / context.sampleRate);
+      const buffer = await context.startRendering();
+      const ch0 = buffer.getChannelData(0);
+      const ch1 = buffer.getChannelData(1);
 
-            context.startRendering()
-                .then(buffer => {
-                  let ch0 = buffer.getChannelData(0);
-                  let ch1 = buffer.getChannelData(1);
+      const shifted = ch1.slice(0, stopFrame).map((x) => x + offset);
 
-                  let shifted = ch1.slice(0, stopFrame).map(x => x + offset);
+      // SPN has a basic latency of 2*|spnSize| fraems, so the
+      // beginning is silent.
+      assert_array_equals(
+          ch0.slice(0, 2 * spnSize - 1),
+          new Float32Array(2 * spnSize - 1),
+          `ScriptProcessor output[0:${2 * spnSize - 1}]`);
 
-                  // SPN has a basic latency of 2*|spnSize| fraems, so the
-                  // beginning is silent.
-                  should(
-                      ch0.slice(0, 2 * spnSize - 1),
-                      `ScriptProcessor output[0:${2 * spnSize - 1}]`)
-                      .beConstantValueOf(0);
+      // For the middle section (after adding latency), the output
+      // should be the source shifted by |offset|.
+      assert_array_equals(
+          ch0.slice(2 * spnSize, 2 * spnSize + stopFrame),
+          new Float32Array(shifted),
+          `ScriptProcessor output[${2 * spnSize}:` +
+              `${2 * spnSize + stopFrame - 1}]`);
 
-                  // For the middle section (after adding latency), the output
-                  // should be the source shifted by |offset|.
-                  should(
-                      ch0.slice(2 * spnSize, 2 * spnSize + stopFrame),
-                      `ScriptProcessor output[${2 * spnSize}:${
-                          2 * spnSize + stopFrame - 1}]`)
-                      .beCloseToArray(shifted, {absoluteThreshold: 0});
-
-                  // Output should be constant after the source has stopped.
-                  // Include the latency introduced by the node.
-                  should(
-                      ch0.slice(2 * spnSize + stopFrame),
-                      `ScriptProcessor output[${2 * spnSize + stopFrame}:]`)
-                      .beConstantValueOf(offset);
-                })
-                .then(() => task.done());
-          });
-
-      audit.run();
-    </script>
-  </body>
+      // Output should be constant after the source has stopped.
+      // Include the latency introduced by the node.
+      assert_array_equals(
+        ch0.slice(2 * spnSize + stopFrame),
+        new Float32Array(ch0.length - (2 * spnSize + stopFrame)).fill(offset),
+        `ScriptProcessor output[${2 * spnSize + stopFrame}:]`);
+    }, 'ScriptProcessor with stopped input source');
+  </script>
+</body>
 </html>
diff --git a/tests/wpt/tests/webaudio/the-audio-api/the-waveshapernode-interface/silent-inputs.html b/tests/wpt/tests/webaudio/the-audio-api/the-waveshapernode-interface/silent-inputs.html
index 45d2c9ad4b3..606930337f0 100644
--- a/tests/wpt/tests/webaudio/the-audio-api/the-waveshapernode-interface/silent-inputs.html
+++ b/tests/wpt/tests/webaudio/the-audio-api/the-waveshapernode-interface/silent-inputs.html
@@ -1,4 +1,4 @@
-<!doctype html>
+<!DOCTYPE html>
 <html>
   <head>
     <title>
@@ -7,97 +7,71 @@
     <script src="/resources/testharness.js"></script>
     <script src="/resources/testharnessreport.js"></script>
     <script src="/webaudio/resources/audit-util.js"></script>
-    <script src="/webaudio/resources/audit.js"></script>
   </head>
   <body>
-    <script id="layout-test-code">
-      let audit = Audit.createTaskRunner();
-      let sampleRate = 16000;
+    <script>
+      const sampleRate = 16000;
 
       // Identity curve for the wave shaper: the input value is mapped directly
       // to the output value.
-      let identityCurve = [-1, 0, 1];
-      let nonZeroCurve = [0.5, 0.5, 0.5];
+      const identityCurve = [-1, 0, 1];
+      const nonZeroCurve = [0.5, 0.5, 0.5];
 
-      audit.define(
-          {
-            label: 'test-0',
-            description: 'curve output is non-zero for silent inputs'
-          },
-          (task, should) => {
-            let {context, source, shaper} =
-                setupGraph(nonZeroCurve, sampleRate, sampleRate);
+      promise_test(async (t) => {
+        const {context, source, shaper} =
+            setupGraph(nonZeroCurve, sampleRate, sampleRate);
 
-            source.offset.setValueAtTime(0, 0);
+        source.offset.setValueAtTime(0, 0);
 
-            context.startRendering()
-                .then(audioBuffer => {
-                  should(
-                      audioBuffer.getChannelData(0),
-                      'WaveShaper with silent inputs and curve ' +
-                          JSON.stringify(shaper.curve))
-                      .beConstantValueOf(0.5);
-                })
-                .then(() => task.done());
-          });
+        const audioBuffer = await context.startRendering();
 
-      audit.define(
-          {
-            label: 'test-1',
-            description: '2x curve output is non-zero for silent inputs'
-          },
-          (task, should) => {
-            let {context, source, shaper} =
-                setupGraph(nonZeroCurve, sampleRate, sampleRate);
+        assert_array_equals(
+            audioBuffer.getChannelData(0),
+            new Float32Array(sampleRate).fill(0.5),
+            'WaveShaper with silent inputs and curve ' +
+                JSON.stringify(shaper.curve));
+      }, 'test-0: curve output is non-zero for silent inputs');
 
-            source.offset.setValueAtTime(0, 0);
-            shaper.overSample = '2x';
+      promise_test(async (t) => {
+        const {context, source, shaper} =
+            setupGraph(nonZeroCurve, sampleRate, sampleRate);
 
-            context.startRendering()
-                .then(audioBuffer => {
-                  should(
-                      audioBuffer.getChannelData(0),
-                      'WaveShaper with ' + shaper.overSample +
-                          ' oversample, silent inputs, and curve ' +
-                          JSON.stringify(shaper.curve))
-                      .beConstantValueOf(0.5);
-                })
-                .then(() => task.done());
-          });
+        source.offset.setValueAtTime(0, 0);
+        shaper.overSample = '2x';
 
-      audit.define(
-          {
-            label: 'test-2',
-            description: 'curve output is non-zero for no inputs'
-          },
-          (task, should) => {
-            let {context, source, shaper} =
-                setupGraph(nonZeroCurve, sampleRate, sampleRate);
+        const audioBuffer = await context.startRendering();
 
-            source.disconnect();
+        assert_array_equals(
+            audioBuffer.getChannelData(0),
+            new Float32Array(sampleRate).fill(0.5),
+            `WaveShaper with ${shaper.overSample} oversample, ` +
+                `silent inputs, and curve ${JSON.stringify(shaper.curve)}`);
+      }, 'test-1: 2x curve output is non-zero for silent inputs');
 
-            context.startRendering()
-                .then(audioBuffer => {
-                  should(
-                      audioBuffer.getChannelData(0),
-                      'WaveShaper with no inputs and curve ' +
-                          JSON.stringify(shaper.curve))
-                      .beConstantValueOf(0.5);
-                })
-                .then(() => task.done());
-          });
+      promise_test(async (t) => {
+        const {context, source, shaper} =
+            setupGraph(nonZeroCurve, sampleRate, sampleRate);
+
+        source.disconnect();
+
+        const audioBuffer = await context.startRendering();
+
+        assert_array_equals(
+            audioBuffer.getChannelData(0),
+            new Float32Array(sampleRate).fill(0.5),
+            'WaveShaper with no inputs and curve ' +
+                JSON.stringify(shaper.curve));
+      }, 'test-2: curve output is non-zero for no inputs');
 
       function setupGraph(curve, testFrames, sampleRate) {
-        let context = new OfflineAudioContext(1, testFrames, sampleRate);
-        let source = new ConstantSourceNode(context);
-        let shaper = new WaveShaperNode(context, {curve: curve});
+        const context = new OfflineAudioContext(1, testFrames, sampleRate);
+        const source = new ConstantSourceNode(context);
+        const shaper = new WaveShaperNode(context, {curve: curve});
 
         source.connect(shaper).connect(context.destination);
 
         return {context: context, source: source, shaper: shaper};
       }
-
-      audit.run();
     </script>
   </body>
 </html>
diff --git a/tests/wpt/tests/webdriver/tests/bidi/browsing_context/navigate/__init__.py b/tests/wpt/tests/webdriver/tests/bidi/browsing_context/navigate/__init__.py
index c2bf7558f4f..d55bd973b3d 100644
--- a/tests/wpt/tests/webdriver/tests/bidi/browsing_context/navigate/__init__.py
+++ b/tests/wpt/tests/webdriver/tests/bidi/browsing_context/navigate/__init__.py
@@ -5,7 +5,12 @@ from webdriver.bidi.error import UnknownErrorException
 from ... import any_string
 
 
-async def navigate_and_assert(bidi_session, context, url, wait="complete", expected_error=False):
+async def navigate_and_assert(
+    bidi_session, context, url, wait="complete", expected_error=False, expected_url=None
+):
+    if expected_url is None:
+        expected_url = url
+
     if expected_error:
         with pytest.raises(UnknownErrorException):
             await bidi_session.browsing_context.navigate(
@@ -16,13 +21,13 @@ async def navigate_and_assert(bidi_session, context, url, wait="complete", expec
         result = await bidi_session.browsing_context.navigate(
             context=context['context'], url=url, wait=wait
         )
-        assert result["url"] == url
+        assert result["url"] == expected_url
         any_string(result["navigation"])
 
         contexts = await bidi_session.browsing_context.get_tree(
             root=context['context']
         )
         assert len(contexts) == 1
-        assert contexts[0]["url"] == url
+        assert contexts[0]["url"] == expected_url
 
         return contexts
diff --git a/tests/wpt/tests/webdriver/tests/bidi/browsing_context/navigate/navigate.py b/tests/wpt/tests/webdriver/tests/bidi/browsing_context/navigate/navigate.py
index 637df8af37e..0ca19e12bd4 100644
--- a/tests/wpt/tests/webdriver/tests/bidi/browsing_context/navigate/navigate.py
+++ b/tests/wpt/tests/webdriver/tests/bidi/browsing_context/navigate/navigate.py
@@ -81,22 +81,23 @@ async def test_interactive_simultaneous_navigation(bidi_session, wait_for_future
 
 
 async def test_relative_url(bidi_session, new_tab, url):
-    url_before = url(
-        "/webdriver/tests/bidi/browsing_context/support/empty.html"
+    url_before = url("/webdriver/tests/bidi/browsing_context/support/empty.html")
+
+    await navigate_and_assert(bidi_session, new_tab, url_before, wait="none")
+
+    relative_url = "other.html"
+    url_after = url_before.replace("empty.html", relative_url)
+    await navigate_and_assert(
+        bidi_session, new_tab, relative_url, wait="none", expected_url=url_after
     )
 
-    await navigate_and_assert(bidi_session, new_tab, url_before, "none")
-
-    url_after = url_before.replace("empty.html", "other.html")
-    await navigate_and_assert(bidi_session, new_tab, url_after, "none")
-
 
 async def test_same_document_navigation_in_before_unload(bidi_session, new_tab, url):
     url_before = url(
         "/webdriver/tests/bidi/browsing_context/support/empty.html"
     )
 
-    await navigate_and_assert(bidi_session, new_tab, url_before, "complete")
+    await navigate_and_assert(bidi_session, new_tab, url_before, wait="complete")
 
     await bidi_session.script.evaluate(
         expression="""window.addEventListener(
@@ -108,7 +109,7 @@ async def test_same_document_navigation_in_before_unload(bidi_session, new_tab,
         await_promise=False)
 
     url_after = url_before.replace("empty.html", "other.html")
-    await navigate_and_assert(bidi_session, new_tab, url_after, "complete")
+    await navigate_and_assert(bidi_session, new_tab, url_after, wait="complete")
 
 
 @pytest.mark.parametrize(
diff --git a/tests/wpt/tests/webdriver/tests/classic/set_window_rect/set.py b/tests/wpt/tests/webdriver/tests/classic/set_window_rect/set.py
index 97e6c2edb18..7fac8305608 100644
--- a/tests/wpt/tests/webdriver/tests/classic/set_window_rect/set.py
+++ b/tests/wpt/tests/webdriver/tests/classic/set_window_rect/set.py
@@ -158,14 +158,14 @@ def test_x_y_floats(session):
 
 
 def test_width_height_floats(session):
-    response = set_window_rect(session, {"width": 550.5, "height": 420})
+    response = set_window_rect(session, {"width": 650.5, "height": 420})
     value = assert_success(response, session.window.rect)
-    assert value["width"] == 550
+    assert value["width"] == 650
     assert value["height"] == 420
 
-    response = set_window_rect(session, {"width": 550, "height": 450.5})
+    response = set_window_rect(session, {"width": 650, "height": 450.5})
     value = assert_success(response, session.window.rect)
-    assert value["width"] == 550
+    assert value["width"] == 650
     assert value["height"] == 450
 
 
diff --git a/tests/wpt/tests/webdriver/tests/support/inline.py b/tests/wpt/tests/webdriver/tests/support/inline.py
index 8364e0590ea..3df81a231bb 100644
--- a/tests/wpt/tests/webdriver/tests/support/inline.py
+++ b/tests/wpt/tests/webdriver/tests/support/inline.py
@@ -19,7 +19,7 @@ BOILERPLATES = {
   </body>
 </html>""",
     "xml": """<?xml version="1.0" encoding="{charset}"?>\n{src}""",
-    "js": "",
+    "js": "{src}",
 }
 MIME_TYPES = {
     "html": "text/html",
diff --git a/tests/wpt/tests/webnn/conformance_tests/abs.https.any.js b/tests/wpt/tests/webnn/conformance_tests/abs.https.any.js
index c94d8acd380..240a29c732b 100644
--- a/tests/wpt/tests/webnn/conformance_tests/abs.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/abs.https.any.js
@@ -654,11 +654,5 @@ const absTests = [
   }
 ];
 
-if (navigator.ml) {
-  absTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(
-        buildAndExecuteGraph, getAbsPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    absTests, buildAndExecuteGraph, getAbsPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/add.https.any.js b/tests/wpt/tests/webnn/conformance_tests/add.https.any.js
index 8fa8176f651..f3814330415 100644
--- a/tests/wpt/tests/webnn/conformance_tests/add.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/add.https.any.js
@@ -998,10 +998,4 @@ const addTests = [
   }
 ];
 
-if (navigator.ml) {
-  addTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(addTests, buildAndExecuteGraph, getPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/arg_min_max.https.any.js b/tests/wpt/tests/webnn/conformance_tests/arg_min_max.https.any.js
index 33105b7e7ba..436c06b23ab 100644
--- a/tests/wpt/tests/webnn/conformance_tests/arg_min_max.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/arg_min_max.https.any.js
@@ -1824,10 +1824,5 @@ const argMinMaxTests = [
   }
 ];
 
-if (navigator.ml) {
-  argMinMaxTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    argMinMaxTests, buildAndExecuteGraph, getPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/averagePool2d.https.any.js b/tests/wpt/tests/webnn/conformance_tests/averagePool2d.https.any.js
index 3637f50d75d..63701272f41 100644
--- a/tests/wpt/tests/webnn/conformance_tests/averagePool2d.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/averagePool2d.https.any.js
@@ -1744,10 +1744,5 @@ const averagePool2dTests = [
   }
 ];
 
-if (navigator.ml) {
-  averagePool2dTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    averagePool2dTests, buildAndExecuteGraph, getPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/batch_normalization.https.any.js b/tests/wpt/tests/webnn/conformance_tests/batch_normalization.https.any.js
index dd23ccec530..3f7fd84abaa 100644
--- a/tests/wpt/tests/webnn/conformance_tests/batch_normalization.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/batch_normalization.https.any.js
@@ -1366,10 +1366,5 @@ const batchNormTests = [
   }
 ];
 
-if (navigator.ml) {
-  batchNormTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    batchNormTests, buildAndExecuteGraph, getPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/cast.https.any.js b/tests/wpt/tests/webnn/conformance_tests/cast.https.any.js
index 0219420bb8d..e981fb0e6cb 100644
--- a/tests/wpt/tests/webnn/conformance_tests/cast.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/cast.https.any.js
@@ -1492,11 +1492,5 @@ const castTests = [
   }
 ];
 
-if (navigator.ml) {
-  castTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(
-        buildAndExecuteGraph, getCastPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    castTests, buildAndExecuteGraph, getCastPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/ceil.https.any.js b/tests/wpt/tests/webnn/conformance_tests/ceil.https.any.js
index 20d8a4d188e..7f411f8578d 100644
--- a/tests/wpt/tests/webnn/conformance_tests/ceil.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/ceil.https.any.js
@@ -456,11 +456,5 @@ const ceilTests = [
   }
 ];
 
-if (navigator.ml) {
-  ceilTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(
-        buildAndExecuteGraph, getCeilPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    ceilTests, buildAndExecuteGraph, getCeilPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/clamp.https.any.js b/tests/wpt/tests/webnn/conformance_tests/clamp.https.any.js
index b1e338dbecf..a51530e2b56 100644
--- a/tests/wpt/tests/webnn/conformance_tests/clamp.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/clamp.https.any.js
@@ -1925,10 +1925,4 @@ const clampTests = [
   },
 ];
 
-if (navigator.ml) {
-  clampTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(clampTests, buildAndExecuteGraph, getPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/concat.https.any.js b/tests/wpt/tests/webnn/conformance_tests/concat.https.any.js
index 821a85e700e..ac9bad3c485 100644
--- a/tests/wpt/tests/webnn/conformance_tests/concat.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/concat.https.any.js
@@ -2373,10 +2373,4 @@ const concatTests = [
   }
 ];
 
-if (navigator.ml) {
-  concatTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getZeroULPTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(concatTests, buildAndExecuteGraph, getZeroULPTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/constant-reshape-optimization.https.any.js b/tests/wpt/tests/webnn/conformance_tests/constant-reshape-optimization.https.any.js
index 3428772ecd0..4b9f4ba1a3c 100644
--- a/tests/wpt/tests/webnn/conformance_tests/constant-reshape-optimization.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/constant-reshape-optimization.https.any.js
@@ -86,11 +86,5 @@ const tests = [{
   }
 }];
 
-if (navigator.ml) {
-  tests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(
-        buildAndExecuteGraph, getInstanceNormPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    tests, buildAndExecuteGraph, getInstanceNormPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/conv2d.https.any.js b/tests/wpt/tests/webnn/conformance_tests/conv2d.https.any.js
index 9962f210e94..11ee05640a2 100644
--- a/tests/wpt/tests/webnn/conformance_tests/conv2d.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/conv2d.https.any.js
@@ -2113,10 +2113,5 @@ const conv2dTests = [
   }
 ];
 
-if (navigator.ml) {
-  conv2dTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    conv2dTests, buildAndExecuteGraph, getPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/conv_transpose2d.https.any.js b/tests/wpt/tests/webnn/conformance_tests/conv_transpose2d.https.any.js
index 4e5525a8fb3..4abf56418db 100644
--- a/tests/wpt/tests/webnn/conformance_tests/conv_transpose2d.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/conv_transpose2d.https.any.js
@@ -3245,10 +3245,5 @@ const convTranspose2dTests = [
   }
 ];
 
-if (navigator.ml) {
-  convTranspose2dTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    convTranspose2dTests, buildAndExecuteGraph, getPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/cos.https.any.js b/tests/wpt/tests/webnn/conformance_tests/cos.https.any.js
index 78047492342..57e7d9904ef 100644
--- a/tests/wpt/tests/webnn/conformance_tests/cos.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/cos.https.any.js
@@ -526,11 +526,5 @@ const cosTests = [
   }
 ];
 
-if (navigator.ml) {
-  cosTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(
-        buildAndExecuteGraph, getCosPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    cosTests, buildAndExecuteGraph, getCosPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/cumulative_sum.https.any.js b/tests/wpt/tests/webnn/conformance_tests/cumulative_sum.https.any.js
index 4264b14e366..f6b495fe020 100644
--- a/tests/wpt/tests/webnn/conformance_tests/cumulative_sum.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/cumulative_sum.https.any.js
@@ -258,11 +258,6 @@ const cumulativeSumTests = [
   }
 ];
 
-if (navigator.ml) {
-  cumulativeSumTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(
-        buildAndExecuteGraph, getCumulativeSumPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    cumulativeSumTests, buildAndExecuteGraph,
+    getCumulativeSumPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/dequantizeLinear.https.any.js b/tests/wpt/tests/webnn/conformance_tests/dequantizeLinear.https.any.js
index 150cc92a231..9f568e6740b 100644
--- a/tests/wpt/tests/webnn/conformance_tests/dequantizeLinear.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/dequantizeLinear.https.any.js
@@ -1467,11 +1467,6 @@ const dequantizeLinearTests = [
   }
 ];
 
-if (navigator.ml) {
-  dequantizeLinearTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(
-        buildAndExecuteGraph, getDequantizeLinearPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    dequantizeLinearTests, buildAndExecuteGraph,
+    getDequantizeLinearPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/div.https.any.js b/tests/wpt/tests/webnn/conformance_tests/div.https.any.js
index 8749f9f68c4..868f4cec305 100644
--- a/tests/wpt/tests/webnn/conformance_tests/div.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/div.https.any.js
@@ -963,11 +963,5 @@ const divTests = [
   }
 ];
 
-if (navigator.ml) {
-  divTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(
-        buildAndExecuteGraph, getDivPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    divTests, buildAndExecuteGraph, getDivPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/elu.https.any.js b/tests/wpt/tests/webnn/conformance_tests/elu.https.any.js
index b9692986816..ca414827d9c 100644
--- a/tests/wpt/tests/webnn/conformance_tests/elu.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/elu.https.any.js
@@ -728,10 +728,4 @@ const eluTests = [
   }
 ];
 
-if (navigator.ml) {
-  eluTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(eluTests, buildAndExecuteGraph, getPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/equal.https.any.js b/tests/wpt/tests/webnn/conformance_tests/equal.https.any.js
index 08d48cf5f37..b41137ac4ff 100644
--- a/tests/wpt/tests/webnn/conformance_tests/equal.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/equal.https.any.js
@@ -976,10 +976,4 @@ const equalTests = [
   }
 ];
 
-if (navigator.ml) {
-  equalTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getZeroULPTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(equalTests, buildAndExecuteGraph, getZeroULPTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/erf.https.any.js b/tests/wpt/tests/webnn/conformance_tests/erf.https.any.js
index 752623b7bd2..8d01d7dcbc4 100644
--- a/tests/wpt/tests/webnn/conformance_tests/erf.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/erf.https.any.js
@@ -528,11 +528,5 @@ const erfTests = [
   }
 ];
 
-if (navigator.ml) {
-  erfTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(
-        buildAndExecuteGraph, getErfPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    erfTests, buildAndExecuteGraph, getErfPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/exp.https.any.js b/tests/wpt/tests/webnn/conformance_tests/exp.https.any.js
index 179d0e954a2..97f6a40446c 100644
--- a/tests/wpt/tests/webnn/conformance_tests/exp.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/exp.https.any.js
@@ -636,11 +636,5 @@ const expTests = [
   }
 ];
 
-if (navigator.ml) {
-  expTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(
-        buildAndExecuteGraph, getExpPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    expTests, buildAndExecuteGraph, getExpPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/expand.https.any.js b/tests/wpt/tests/webnn/conformance_tests/expand.https.any.js
index b17c9c665a8..84c64f1de13 100644
--- a/tests/wpt/tests/webnn/conformance_tests/expand.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/expand.https.any.js
@@ -1328,10 +1328,4 @@ const expandTests = [
   }
 ];
 
-if (navigator.ml) {
-  expandTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getZeroULPTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(expandTests, buildAndExecuteGraph, getZeroULPTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/floor.https.any.js b/tests/wpt/tests/webnn/conformance_tests/floor.https.any.js
index ccb0be896c7..b2155ae34ec 100644
--- a/tests/wpt/tests/webnn/conformance_tests/floor.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/floor.https.any.js
@@ -456,11 +456,5 @@ const floorTests = [
   }
 ];
 
-if (navigator.ml) {
-  floorTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(
-        buildAndExecuteGraph, getFloorPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    floorTests, buildAndExecuteGraph, getFloorPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/gather.https.any.js b/tests/wpt/tests/webnn/conformance_tests/gather.https.any.js
index 08a14f3baf2..4df2408b179 100644
--- a/tests/wpt/tests/webnn/conformance_tests/gather.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/gather.https.any.js
@@ -1701,10 +1701,4 @@ const gatherTests = [
   }
 ];
 
-if (navigator.ml) {
-  gatherTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getZeroULPTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(gatherTests, buildAndExecuteGraph, getZeroULPTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/gatherElements.https.any.js b/tests/wpt/tests/webnn/conformance_tests/gatherElements.https.any.js
index 565332aa672..670f8299cc9 100644
--- a/tests/wpt/tests/webnn/conformance_tests/gatherElements.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/gatherElements.https.any.js
@@ -402,10 +402,5 @@ const gatherElementsTests = [
   }
 ];
 
-if (navigator.ml) {
-  gatherElementsTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getZeroULPTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    gatherElementsTests, buildAndExecuteGraph, getZeroULPTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/gatherND.https.any.js b/tests/wpt/tests/webnn/conformance_tests/gatherND.https.any.js
index 434410f1a20..d64c99801ba 100644
--- a/tests/wpt/tests/webnn/conformance_tests/gatherND.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/gatherND.https.any.js
@@ -571,10 +571,5 @@ const gatherNDTests = [
   }
 ];
 
-if (navigator.ml) {
-  gatherNDTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getZeroULPTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    gatherNDTests, buildAndExecuteGraph, getZeroULPTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/gelu.https.any.js b/tests/wpt/tests/webnn/conformance_tests/gelu.https.any.js
index 9c06af3eb56..cf1db1ae6c4 100644
--- a/tests/wpt/tests/webnn/conformance_tests/gelu.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/gelu.https.any.js
@@ -502,10 +502,4 @@ const geluTests = [
   }
 ];
 
-if (navigator.ml) {
-  geluTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(geluTests, buildAndExecuteGraph, getPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/gemm.https.any.js b/tests/wpt/tests/webnn/conformance_tests/gemm.https.any.js
index f9f15d65a64..2b72a0cb1c8 100644
--- a/tests/wpt/tests/webnn/conformance_tests/gemm.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/gemm.https.any.js
@@ -2410,10 +2410,4 @@ const gemmTests = [
   }
 ];
 
-if (navigator.ml) {
-  gemmTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(gemmTests, buildAndExecuteGraph, getPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/greater.https.any.js b/tests/wpt/tests/webnn/conformance_tests/greater.https.any.js
index fe1941499a4..683f9b74252 100644
--- a/tests/wpt/tests/webnn/conformance_tests/greater.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/greater.https.any.js
@@ -980,10 +980,4 @@ const greaterTests = [
   }
 ];
 
-if (navigator.ml) {
-  greaterTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getZeroULPTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(greaterTests, buildAndExecuteGraph, getZeroULPTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/greater_or_equal.https.any.js b/tests/wpt/tests/webnn/conformance_tests/greater_or_equal.https.any.js
index 648b3d9d694..818948a8de8 100644
--- a/tests/wpt/tests/webnn/conformance_tests/greater_or_equal.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/greater_or_equal.https.any.js
@@ -975,10 +975,5 @@ const greaterOrEqualTests = [
   }
 ];
 
-if (navigator.ml) {
-  greaterOrEqualTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getZeroULPTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    greaterOrEqualTests, buildAndExecuteGraph, getZeroULPTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/gru.https.any.js b/tests/wpt/tests/webnn/conformance_tests/gru.https.any.js
index 06ff4a5d344..429ac3420f5 100644
--- a/tests/wpt/tests/webnn/conformance_tests/gru.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/gru.https.any.js
@@ -2004,12 +2004,5 @@ const gruTests = [
   }
 ];
 
-if (navigator.ml) {
-  gruTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(
-        buildAndExecuteGraph, getGruPrecisionTolerance, test);
-  });
-
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    gruTests, buildAndExecuteGraph, getGruPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/gru_cell.https.any.js b/tests/wpt/tests/webnn/conformance_tests/gru_cell.https.any.js
index 8d2c5992bae..23b31b32a09 100644
--- a/tests/wpt/tests/webnn/conformance_tests/gru_cell.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/gru_cell.https.any.js
@@ -607,11 +607,5 @@ const gruCellTests = [
   }
 ];
 
-if (navigator.ml) {
-  gruCellTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(
-        buildAndExecuteGraph, getGruCellPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    gruCellTests, buildAndExecuteGraph, getGruCellPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/hard_sigmoid.https.any.js b/tests/wpt/tests/webnn/conformance_tests/hard_sigmoid.https.any.js
index 5ad5a815dce..081bec64ee8 100644
--- a/tests/wpt/tests/webnn/conformance_tests/hard_sigmoid.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/hard_sigmoid.https.any.js
@@ -1343,10 +1343,5 @@ const hardSigmoidTests = [
   }
 ];
 
-if (navigator.ml) {
-  hardSigmoidTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    hardSigmoidTests, buildAndExecuteGraph, getPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/hard_swish.https.any.js b/tests/wpt/tests/webnn/conformance_tests/hard_swish.https.any.js
index 02d902cea25..afad6dfa557 100644
--- a/tests/wpt/tests/webnn/conformance_tests/hard_swish.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/hard_swish.https.any.js
@@ -645,10 +645,5 @@ const hardSwishTests = [
   }
 ];
 
-if (navigator.ml) {
-  hardSwishTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    hardSwishTests, buildAndExecuteGraph, getPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/identity.https.any.js b/tests/wpt/tests/webnn/conformance_tests/identity.https.any.js
index a68d0be7cd4..a7b96889310 100644
--- a/tests/wpt/tests/webnn/conformance_tests/identity.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/identity.https.any.js
@@ -520,10 +520,5 @@ const identityTests = [
   }
 ];
 
-if (navigator.ml) {
-  identityTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getZeroULPTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    identityTests, buildAndExecuteGraph, getZeroULPTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/instance_normalization.https.any.js b/tests/wpt/tests/webnn/conformance_tests/instance_normalization.https.any.js
index 0011a970c67..743022a6f67 100644
--- a/tests/wpt/tests/webnn/conformance_tests/instance_normalization.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/instance_normalization.https.any.js
@@ -628,11 +628,5 @@ const instanceNormTests = [
   }
 ];
 
-if (navigator.ml) {
-  instanceNormTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(
-        buildAndExecuteGraph, getInstanceNormPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    instanceNormTests, buildAndExecuteGraph, getInstanceNormPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/is_infinite.https.any.js b/tests/wpt/tests/webnn/conformance_tests/is_infinite.https.any.js
index a5c25435619..3e051595387 100644
--- a/tests/wpt/tests/webnn/conformance_tests/is_infinite.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/is_infinite.https.any.js
@@ -352,12 +352,5 @@ const isInfiniteTests = [
   },
 ]
 
-if (navigator.ml) {
-  isInfiniteTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(
-        buildAndExecuteGraph, getZeroULPTolerance, test,
-        /*cast_to_supported_type=*/true);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    isInfiniteTests, buildAndExecuteGraph, getZeroULPTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/is_nan.https.any.js b/tests/wpt/tests/webnn/conformance_tests/is_nan.https.any.js
index ef656eede0c..5cbc90b43c8 100644
--- a/tests/wpt/tests/webnn/conformance_tests/is_nan.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/is_nan.https.any.js
@@ -285,12 +285,4 @@ const isNaNTests = [
   },
 ]
 
-if (navigator.ml) {
-  isNaNTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(
-        buildAndExecuteGraph, getZeroULPTolerance, test,
-        /*cast_to_supported_type=*/true);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(isNaNTests, buildAndExecuteGraph, getZeroULPTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/l2Pool2d.https.any.js b/tests/wpt/tests/webnn/conformance_tests/l2Pool2d.https.any.js
index bb4d3d79723..92997c11224 100644
--- a/tests/wpt/tests/webnn/conformance_tests/l2Pool2d.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/l2Pool2d.https.any.js
@@ -1357,10 +1357,5 @@ const l2Pool2dTests = [
   }
 ];
 
-if (navigator.ml) {
-  l2Pool2dTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    l2Pool2dTests, buildAndExecuteGraph, getPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/layer_normalization.https.any.js b/tests/wpt/tests/webnn/conformance_tests/layer_normalization.https.any.js
index d0f4f9ac5f5..7ac8139a88b 100644
--- a/tests/wpt/tests/webnn/conformance_tests/layer_normalization.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/layer_normalization.https.any.js
@@ -1100,11 +1100,5 @@ const layerNormTests = [
   }
 ];
 
-if (navigator.ml) {
-  layerNormTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(
-        buildAndExecuteGraph, getLayerNormPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    layerNormTests, buildAndExecuteGraph, getLayerNormPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/leaky_relu.https.any.js b/tests/wpt/tests/webnn/conformance_tests/leaky_relu.https.any.js
index 44ba7126331..72ab4d0348f 100644
--- a/tests/wpt/tests/webnn/conformance_tests/leaky_relu.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/leaky_relu.https.any.js
@@ -874,10 +874,5 @@ const leakyReluTests = [
   }
 ];
 
-if (navigator.ml) {
-  leakyReluTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    leakyReluTests, buildAndExecuteGraph, getPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/lesser.https.any.js b/tests/wpt/tests/webnn/conformance_tests/lesser.https.any.js
index e5f45483b27..66862997346 100644
--- a/tests/wpt/tests/webnn/conformance_tests/lesser.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/lesser.https.any.js
@@ -987,10 +987,4 @@ const lesserTests = [
   }
 ];
 
-if (navigator.ml) {
-  lesserTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getZeroULPTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(lesserTests, buildAndExecuteGraph, getZeroULPTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/lesser_or_equal.https.any.js b/tests/wpt/tests/webnn/conformance_tests/lesser_or_equal.https.any.js
index ed5dad214c4..2f1ed6eded3 100644
--- a/tests/wpt/tests/webnn/conformance_tests/lesser_or_equal.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/lesser_or_equal.https.any.js
@@ -1094,10 +1094,5 @@ const lesserOrEqualTests = [
   }
 ];
 
-if (navigator.ml) {
-  lesserOrEqualTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getZeroULPTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    lesserOrEqualTests, buildAndExecuteGraph, getZeroULPTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/linear.https.any.js b/tests/wpt/tests/webnn/conformance_tests/linear.https.any.js
index 794981d1f5f..758a85d2620 100644
--- a/tests/wpt/tests/webnn/conformance_tests/linear.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/linear.https.any.js
@@ -1014,10 +1014,5 @@ const linearTests = [
   }
 ];
 
-if (navigator.ml) {
-  linearTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    linearTests, buildAndExecuteGraph, getPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/log.https.any.js b/tests/wpt/tests/webnn/conformance_tests/log.https.any.js
index 055d600e2e1..ffb62e7be58 100644
--- a/tests/wpt/tests/webnn/conformance_tests/log.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/log.https.any.js
@@ -509,11 +509,5 @@ const logTests = [
   }
 ];
 
-if (navigator.ml) {
-  logTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(
-        buildAndExecuteGraph, getLogPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    logTests, buildAndExecuteGraph, getLogPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/logical_and.https.any.js b/tests/wpt/tests/webnn/conformance_tests/logical_and.https.any.js
index ccb91c009c4..c232fe6b03d 100644
--- a/tests/wpt/tests/webnn/conformance_tests/logical_and.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/logical_and.https.any.js
@@ -412,10 +412,5 @@ const logicalAndTests = [
   }
 ];
 
-if (navigator.ml) {
-  logicalAndTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getZeroULPTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    logicalAndTests, buildAndExecuteGraph, getZeroULPTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/logical_not.https.any.js b/tests/wpt/tests/webnn/conformance_tests/logical_not.https.any.js
index e5ce2db116d..c1dc6edd4d7 100644
--- a/tests/wpt/tests/webnn/conformance_tests/logical_not.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/logical_not.https.any.js
@@ -203,10 +203,5 @@ const logicalNotTests = [
   }
 ];
 
-if (navigator.ml) {
-  logicalNotTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getZeroULPTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    logicalNotTests, buildAndExecuteGraph, getZeroULPTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/logical_or.https.any.js b/tests/wpt/tests/webnn/conformance_tests/logical_or.https.any.js
index b57cb77afa2..ab486bcbea5 100644
--- a/tests/wpt/tests/webnn/conformance_tests/logical_or.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/logical_or.https.any.js
@@ -412,10 +412,5 @@ const logicalOrTests = [
   }
 ];
 
-if (navigator.ml) {
-  logicalOrTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getZeroULPTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    logicalOrTests, buildAndExecuteGraph, getZeroULPTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/logical_xor.https.any.js b/tests/wpt/tests/webnn/conformance_tests/logical_xor.https.any.js
index bb6546ac200..5b206d7db9b 100644
--- a/tests/wpt/tests/webnn/conformance_tests/logical_xor.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/logical_xor.https.any.js
@@ -412,10 +412,5 @@ const logicalXorTests = [
 }
 ];
 
-if (navigator.ml) {
-  logicalXorTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getZeroULPTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    logicalXorTests, buildAndExecuteGraph, getZeroULPTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/lstm.https.any.js b/tests/wpt/tests/webnn/conformance_tests/lstm.https.any.js
index 8c0ed856055..b887e50fe9e 100644
--- a/tests/wpt/tests/webnn/conformance_tests/lstm.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/lstm.https.any.js
@@ -1914,11 +1914,5 @@ const lstmTests = [
   }
 ];
 
-if (navigator.ml) {
-  lstmTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(
-        buildAndExecuteGraph, getLstmPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    lstmTests, buildAndExecuteGraph, getLstmPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/lstm_cell.https.any.js b/tests/wpt/tests/webnn/conformance_tests/lstm_cell.https.any.js
index 345c516fdd7..f5901d34d76 100644
--- a/tests/wpt/tests/webnn/conformance_tests/lstm_cell.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/lstm_cell.https.any.js
@@ -784,11 +784,5 @@ const lstmCellTests = [
   }
 ];
 
-if (navigator.ml) {
-  lstmCellTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(
-        buildAndExecuteGraph, getLstmCellPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    lstmCellTests, buildAndExecuteGraph, getLstmCellPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/matmul.https.any.js b/tests/wpt/tests/webnn/conformance_tests/matmul.https.any.js
index f5f79e3aadc..0e13391f231 100644
--- a/tests/wpt/tests/webnn/conformance_tests/matmul.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/matmul.https.any.js
@@ -1095,11 +1095,5 @@ const matmulTests = [
   }
 ];
 
-if (navigator.ml) {
-  matmulTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(
-        buildAndExecuteGraph, getMatmulPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    matmulTests, buildAndExecuteGraph, getMatmulPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/max.https.any.js b/tests/wpt/tests/webnn/conformance_tests/max.https.any.js
index 07d600a71f2..da6f9621a74 100644
--- a/tests/wpt/tests/webnn/conformance_tests/max.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/max.https.any.js
@@ -920,10 +920,4 @@ const maxTests = [
   }
 ];
 
-if (navigator.ml) {
-  maxTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(maxTests, buildAndExecuteGraph, getPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/maxPool2d.https.any.js b/tests/wpt/tests/webnn/conformance_tests/maxPool2d.https.any.js
index 6fecb3bf979..d9a6b0bebb1 100644
--- a/tests/wpt/tests/webnn/conformance_tests/maxPool2d.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/maxPool2d.https.any.js
@@ -1207,10 +1207,5 @@ const maxPool2dTests = [
   }
 ];
 
-if (navigator.ml) {
-  maxPool2dTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    maxPool2dTests, buildAndExecuteGraph, getPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/min.https.any.js b/tests/wpt/tests/webnn/conformance_tests/min.https.any.js
index 41e8e43eb4f..8476d2b053d 100644
--- a/tests/wpt/tests/webnn/conformance_tests/min.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/min.https.any.js
@@ -930,10 +930,4 @@ const minTests = [
   }
 ];
 
-if (navigator.ml) {
-  minTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(minTests, buildAndExecuteGraph, getPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/mlNumber.https.any.js b/tests/wpt/tests/webnn/conformance_tests/mlNumber.https.any.js
index df778183776..a987158269d 100644
--- a/tests/wpt/tests/webnn/conformance_tests/mlNumber.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/mlNumber.https.any.js
@@ -267,11 +267,5 @@ const mlNumberTests = [
   },
 ];
 
-if (navigator.ml) {
-  mlNumberTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(
-        buildAndExecuteGraph, getClampPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    mlNumberTests, buildAndExecuteGraph, getClampPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/mul.https.any.js b/tests/wpt/tests/webnn/conformance_tests/mul.https.any.js
index a026584db94..cf919b47f7a 100644
--- a/tests/wpt/tests/webnn/conformance_tests/mul.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/mul.https.any.js
@@ -914,10 +914,4 @@ const mulTests = [
   }
 ];
 
-if (navigator.ml) {
-  mulTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(mulTests, buildAndExecuteGraph, getPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/neg.https.any.js b/tests/wpt/tests/webnn/conformance_tests/neg.https.any.js
index 02ce39617f8..ca6d200216f 100644
--- a/tests/wpt/tests/webnn/conformance_tests/neg.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/neg.https.any.js
@@ -635,11 +635,5 @@ const negTests = [
   }
 ];
 
-if (navigator.ml) {
-  negTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(
-        buildAndExecuteGraph, getNegPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    negTests, buildAndExecuteGraph, getNegPrecisionTolerance, test);
diff --git a/tests/wpt/tests/webnn/conformance_tests/not_equal.https.any.js b/tests/wpt/tests/webnn/conformance_tests/not_equal.https.any.js
index 7d7b3e01763..58b0af24fb7 100644
--- a/tests/wpt/tests/webnn/conformance_tests/not_equal.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/not_equal.https.any.js
@@ -977,10 +977,5 @@ const notEqualTests = [
   }
 ];
 
-if (navigator.ml) {
-  notEqualTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getZeroULPTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    notEqualTests, buildAndExecuteGraph, getZeroULPTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/pad.https.any.js b/tests/wpt/tests/webnn/conformance_tests/pad.https.any.js
index 55c6077e805..f1b9151767b 100644
--- a/tests/wpt/tests/webnn/conformance_tests/pad.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/pad.https.any.js
@@ -1249,10 +1249,4 @@ const padTests = [
   }
 ];
 
-if (navigator.ml) {
-  padTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getZeroULPTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(padTests, buildAndExecuteGraph, getZeroULPTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/pow.https.any.js b/tests/wpt/tests/webnn/conformance_tests/pow.https.any.js
index cf895f4c47a..1d96fb8d36a 100644
--- a/tests/wpt/tests/webnn/conformance_tests/pow.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/pow.https.any.js
@@ -981,11 +981,5 @@ const powTests = [
   }
 ];
 
-if (navigator.ml) {
-  powTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(
-        buildAndExecuteGraph, getPowPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    powTests, buildAndExecuteGraph, getPowPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/prelu.https.any.js b/tests/wpt/tests/webnn/conformance_tests/prelu.https.any.js
index 5f64ff60c76..3de7353d62d 100644
--- a/tests/wpt/tests/webnn/conformance_tests/prelu.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/prelu.https.any.js
@@ -1240,10 +1240,4 @@ const preluTests = [
   }
 ];
 
-if (navigator.ml) {
-  preluTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(preluTests, buildAndExecuteGraph, getPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/qdq_subgraph.https.any.js b/tests/wpt/tests/webnn/conformance_tests/qdq_subgraph.https.any.js
index 0e747e761ef..1db0c113709 100644
--- a/tests/wpt/tests/webnn/conformance_tests/qdq_subgraph.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/qdq_subgraph.https.any.js
@@ -3918,10 +3918,5 @@ const subgraphTests = [
   },
 ];
 
-if (navigator.ml) {
-  subgraphTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    subgraphTests, buildAndExecuteGraph, getPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/quantizeLinear.https.any.js b/tests/wpt/tests/webnn/conformance_tests/quantizeLinear.https.any.js
index 276cdb85d85..25a34322c19 100644
--- a/tests/wpt/tests/webnn/conformance_tests/quantizeLinear.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/quantizeLinear.https.any.js
@@ -1168,11 +1168,6 @@ const quantizeLinearTests = [
   }
 ];
 
-if (navigator.ml) {
-  quantizeLinearTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(
-        buildAndExecuteGraph, getQuantizeLinearPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    quantizeLinearTests, buildAndExecuteGraph,
+    getQuantizeLinearPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/reciprocal.https.any.js b/tests/wpt/tests/webnn/conformance_tests/reciprocal.https.any.js
index 40a17940d0d..ab4801b8e7a 100644
--- a/tests/wpt/tests/webnn/conformance_tests/reciprocal.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/reciprocal.https.any.js
@@ -552,11 +552,5 @@ const reciprocalTests = [
   }
 ];
 
-if (navigator.ml) {
-  reciprocalTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(
-        buildAndExecuteGraph, getReciprocalPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    reciprocalTests, buildAndExecuteGraph, getReciprocalPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/reduce_l1.https.any.js b/tests/wpt/tests/webnn/conformance_tests/reduce_l1.https.any.js
index 9465777f206..985d562429e 100644
--- a/tests/wpt/tests/webnn/conformance_tests/reduce_l1.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/reduce_l1.https.any.js
@@ -1186,10 +1186,5 @@ const reduceL1Tests = [
   }
 ];
 
-if (navigator.ml) {
-  reduceL1Tests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    reduceL1Tests, buildAndExecuteGraph, getPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/reduce_l2.https.any.js b/tests/wpt/tests/webnn/conformance_tests/reduce_l2.https.any.js
index 2a4e94abe94..3111861da43 100644
--- a/tests/wpt/tests/webnn/conformance_tests/reduce_l2.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/reduce_l2.https.any.js
@@ -1126,10 +1126,5 @@ const reduceL2Tests = [
   }
 ];
 
-if (navigator.ml) {
-  reduceL2Tests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    reduceL2Tests, buildAndExecuteGraph, getPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/reduce_log_sum.https.any.js b/tests/wpt/tests/webnn/conformance_tests/reduce_log_sum.https.any.js
index 6d98832c072..cf128250617 100644
--- a/tests/wpt/tests/webnn/conformance_tests/reduce_log_sum.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/reduce_log_sum.https.any.js
@@ -1073,10 +1073,5 @@ const reduceLogSumTests = [
   }
 ];
 
-if (navigator.ml) {
-  reduceLogSumTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    reduceLogSumTests, buildAndExecuteGraph, getPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/reduce_log_sum_exp.https.any.js b/tests/wpt/tests/webnn/conformance_tests/reduce_log_sum_exp.https.any.js
index 6770b74475d..60467a01359 100644
--- a/tests/wpt/tests/webnn/conformance_tests/reduce_log_sum_exp.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/reduce_log_sum_exp.https.any.js
@@ -1210,10 +1210,5 @@ const reduceLogSumExpTests = [
   }
 ];
 
-if (navigator.ml) {
-  reduceLogSumExpTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    reduceLogSumExpTests, buildAndExecuteGraph, getPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/reduce_max.https.any.js b/tests/wpt/tests/webnn/conformance_tests/reduce_max.https.any.js
index dc08e1c8c82..d89defa7042 100644
--- a/tests/wpt/tests/webnn/conformance_tests/reduce_max.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/reduce_max.https.any.js
@@ -993,10 +993,5 @@ const reduceMaxTests = [
   }
 ];
 
-if (navigator.ml) {
-  reduceMaxTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    reduceMaxTests, buildAndExecuteGraph, getPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/reduce_mean.https.any.js b/tests/wpt/tests/webnn/conformance_tests/reduce_mean.https.any.js
index a402c253bd9..8275bee16ac 100644
--- a/tests/wpt/tests/webnn/conformance_tests/reduce_mean.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/reduce_mean.https.any.js
@@ -1154,10 +1154,5 @@ const reduceMeanTests = [
   }
 ];
 
-if (navigator.ml) {
-  reduceMeanTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    reduceMeanTests, buildAndExecuteGraph, getPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/reduce_min.https.any.js b/tests/wpt/tests/webnn/conformance_tests/reduce_min.https.any.js
index 8e1604558c8..22f9f9f0935 100644
--- a/tests/wpt/tests/webnn/conformance_tests/reduce_min.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/reduce_min.https.any.js
@@ -993,10 +993,5 @@ const reduceMinTests = [
   }
 ];
 
-if (navigator.ml) {
-  reduceMinTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    reduceMinTests, buildAndExecuteGraph, getPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/reduce_product.https.any.js b/tests/wpt/tests/webnn/conformance_tests/reduce_product.https.any.js
index cb1f16de53c..f6205e4e65e 100644
--- a/tests/wpt/tests/webnn/conformance_tests/reduce_product.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/reduce_product.https.any.js
@@ -1033,10 +1033,5 @@ const reduceProductTests = [
   }
 ];
 
-if (navigator.ml) {
-  reduceProductTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    reduceProductTests, buildAndExecuteGraph, getPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/reduce_sum.https.any.js b/tests/wpt/tests/webnn/conformance_tests/reduce_sum.https.any.js
index d4120ac88a2..6197112771c 100644
--- a/tests/wpt/tests/webnn/conformance_tests/reduce_sum.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/reduce_sum.https.any.js
@@ -1128,10 +1128,5 @@ const reduceSumTests = [
   }
 ];
 
-if (navigator.ml) {
-  reduceSumTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    reduceSumTests, buildAndExecuteGraph, getPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/reduce_sum_square.https.any.js b/tests/wpt/tests/webnn/conformance_tests/reduce_sum_square.https.any.js
index 167f4f3a0ae..b56b6d788d2 100644
--- a/tests/wpt/tests/webnn/conformance_tests/reduce_sum_square.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/reduce_sum_square.https.any.js
@@ -1214,10 +1214,5 @@ const reduceSumSquareTests = [
   }
 ];
 
-if (navigator.ml) {
-  reduceSumSquareTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    reduceSumSquareTests, buildAndExecuteGraph, getPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/relu.https.any.js b/tests/wpt/tests/webnn/conformance_tests/relu.https.any.js
index d6fda23369d..c60170746bf 100644
--- a/tests/wpt/tests/webnn/conformance_tests/relu.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/relu.https.any.js
@@ -666,10 +666,4 @@ const reluTests = [
   }
 ];
 
-if (navigator.ml) {
-  reluTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(reluTests, buildAndExecuteGraph, getPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/resample2d.https.any.js b/tests/wpt/tests/webnn/conformance_tests/resample2d.https.any.js
index 7872bd247ed..5f13dc0bd6a 100644
--- a/tests/wpt/tests/webnn/conformance_tests/resample2d.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/resample2d.https.any.js
@@ -517,10 +517,5 @@ const resample2dTests = [
   }
 ];
 
-if (navigator.ml) {
-  resample2dTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    resample2dTests, buildAndExecuteGraph, getPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/reshape.https.any.js b/tests/wpt/tests/webnn/conformance_tests/reshape.https.any.js
index d9fa87fa2f7..2d27425f447 100644
--- a/tests/wpt/tests/webnn/conformance_tests/reshape.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/reshape.https.any.js
@@ -2361,10 +2361,4 @@ const reshapeTests = [
   }
 ];
 
-if (navigator.ml) {
-  reshapeTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getZeroULPTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(reshapeTests, buildAndExecuteGraph, getZeroULPTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/reverse.https.any.js b/tests/wpt/tests/webnn/conformance_tests/reverse.https.any.js
index 9d6fccad266..3401c0b3ff3 100644
--- a/tests/wpt/tests/webnn/conformance_tests/reverse.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/reverse.https.any.js
@@ -262,10 +262,4 @@ const reverseTests = [
   }
 ];
 
-if (navigator.ml) {
-  reverseTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getZeroULPTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(reverseTests, buildAndExecuteGraph, getZeroULPTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/round_even.https.any.js b/tests/wpt/tests/webnn/conformance_tests/round_even.https.any.js
index e054d2ea4f5..2ed34564f3d 100644
--- a/tests/wpt/tests/webnn/conformance_tests/round_even.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/round_even.https.any.js
@@ -242,11 +242,5 @@ const roundEvenTests = [
   },
 ]
 
-if (navigator.ml) {
-  roundEvenTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(
-        buildAndExecuteGraph, getRoundEvenPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
\ No newline at end of file
+webnn_conformance_test(
+    roundEvenTests, buildAndExecuteGraph, getRoundEvenPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/scatterElements.https.any.js b/tests/wpt/tests/webnn/conformance_tests/scatterElements.https.any.js
index a388ad13b99..3bc6662c0c3 100644
--- a/tests/wpt/tests/webnn/conformance_tests/scatterElements.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/scatterElements.https.any.js
@@ -281,10 +281,5 @@ const scatterElementsTests = [
   }
 ];
 
-if (navigator.ml) {
-  scatterElementsTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getZeroULPTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    scatterElementsTests, buildAndExecuteGraph, getZeroULPTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/scatterND.https.any.js b/tests/wpt/tests/webnn/conformance_tests/scatterND.https.any.js
index 919639bc028..1384e28c77b 100644
--- a/tests/wpt/tests/webnn/conformance_tests/scatterND.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/scatterND.https.any.js
@@ -163,10 +163,5 @@ const scatterNDTests = [
   }
 ];
 
-if (navigator.ml) {
-  scatterNDTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getZeroULPTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    scatterNDTests, buildAndExecuteGraph, getZeroULPTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/sigmoid.https.any.js b/tests/wpt/tests/webnn/conformance_tests/sigmoid.https.any.js
index a8a310e141e..17b29e87947 100644
--- a/tests/wpt/tests/webnn/conformance_tests/sigmoid.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/sigmoid.https.any.js
@@ -629,10 +629,5 @@ const sigmoidTests = [
   }
 ];
 
-if (navigator.ml) {
-  sigmoidTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    sigmoidTests, buildAndExecuteGraph, getPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/sign.https.any.js b/tests/wpt/tests/webnn/conformance_tests/sign.https.any.js
index d61ce38dedb..9781d099ba1 100644
--- a/tests/wpt/tests/webnn/conformance_tests/sign.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/sign.https.any.js
@@ -187,11 +187,5 @@ const signTests = [
   },
 ];
 
-if (navigator.ml) {
-  signTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(
-        buildAndExecuteGraph, getSignPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    signTests, buildAndExecuteGraph, getSignPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/sin.https.any.js b/tests/wpt/tests/webnn/conformance_tests/sin.https.any.js
index 1f9a5eaac54..e363d745354 100644
--- a/tests/wpt/tests/webnn/conformance_tests/sin.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/sin.https.any.js
@@ -532,11 +532,5 @@ const sinTests = [
   }
 ];
 
-if (navigator.ml) {
-  sinTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(
-        buildAndExecuteGraph, getSinPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    sinTests, buildAndExecuteGraph, getSinPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/slice.https.any.js b/tests/wpt/tests/webnn/conformance_tests/slice.https.any.js
index b1a30fc8106..479340e7ee2 100644
--- a/tests/wpt/tests/webnn/conformance_tests/slice.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/slice.https.any.js
@@ -625,10 +625,4 @@ const sliceTests = [
   }
 ];
 
-if (navigator.ml) {
-  sliceTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getZeroULPTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(sliceTests, buildAndExecuteGraph, getZeroULPTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/softmax.https.any.js b/tests/wpt/tests/webnn/conformance_tests/softmax.https.any.js
index 2d9f28dbf6a..4e6c091d868 100644
--- a/tests/wpt/tests/webnn/conformance_tests/softmax.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/softmax.https.any.js
@@ -364,10 +364,5 @@ const softmaxTests = [
   }
 ];
 
-if (navigator.ml) {
-  softmaxTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    softmaxTests, buildAndExecuteGraph, getPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/softplus.https.any.js b/tests/wpt/tests/webnn/conformance_tests/softplus.https.any.js
index ba8b8f30018..d07263ed897 100644
--- a/tests/wpt/tests/webnn/conformance_tests/softplus.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/softplus.https.any.js
@@ -507,10 +507,5 @@ const softplusTests = [
   }
 ];
 
-if (navigator.ml) {
-  softplusTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    softplusTests, buildAndExecuteGraph, getPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/softsign.https.any.js b/tests/wpt/tests/webnn/conformance_tests/softsign.https.any.js
index 9c7c4d10774..b57834503b6 100644
--- a/tests/wpt/tests/webnn/conformance_tests/softsign.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/softsign.https.any.js
@@ -646,10 +646,5 @@ const softsignTests = [
   }
 ];
 
-if (navigator.ml) {
-  softsignTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    softsignTests, buildAndExecuteGraph, getPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/split.https.any.js b/tests/wpt/tests/webnn/conformance_tests/split.https.any.js
index a6695e202d4..e51f5b611d8 100644
--- a/tests/wpt/tests/webnn/conformance_tests/split.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/split.https.any.js
@@ -918,10 +918,4 @@ const splitTests = [
   }
 ];
 
-if (navigator.ml) {
-  splitTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getZeroULPTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(splitTests, buildAndExecuteGraph, getZeroULPTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/sqrt.https.any.js b/tests/wpt/tests/webnn/conformance_tests/sqrt.https.any.js
index f56dde65a1a..369412f211c 100644
--- a/tests/wpt/tests/webnn/conformance_tests/sqrt.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/sqrt.https.any.js
@@ -514,11 +514,5 @@ const sqrtTests = [
   }
 ];
 
-if (navigator.ml) {
-  sqrtTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(
-        buildAndExecuteGraph, getSqrtPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    sqrtTests, buildAndExecuteGraph, getSqrtPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/sub.https.any.js b/tests/wpt/tests/webnn/conformance_tests/sub.https.any.js
index d93acf5e30e..10b66b0b24e 100644
--- a/tests/wpt/tests/webnn/conformance_tests/sub.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/sub.https.any.js
@@ -1113,10 +1113,4 @@ const subTests = [
   }
 ];
 
-if (navigator.ml) {
-  subTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(subTests, buildAndExecuteGraph, getPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/subgraph.https.any.js b/tests/wpt/tests/webnn/conformance_tests/subgraph.https.any.js
index 6775b91a912..990aa45a5e0 100644
--- a/tests/wpt/tests/webnn/conformance_tests/subgraph.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/subgraph.https.any.js
@@ -2564,10 +2564,5 @@ const subgraphTests = [
   },
 ];
 
-if (navigator.ml) {
-  subgraphTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    subgraphTests, buildAndExecuteGraph, getPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/tan.https.any.js b/tests/wpt/tests/webnn/conformance_tests/tan.https.any.js
index 79194b34dd0..6e156807a0c 100644
--- a/tests/wpt/tests/webnn/conformance_tests/tan.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/tan.https.any.js
@@ -532,11 +532,5 @@ const tanTests = [
   }
 ];
 
-if (navigator.ml) {
-  tanTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(
-        buildAndExecuteGraph, getTanPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    tanTests, buildAndExecuteGraph, getTanPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/tanh.https.any.js b/tests/wpt/tests/webnn/conformance_tests/tanh.https.any.js
index 6d61fd5d388..aa6bccea238 100644
--- a/tests/wpt/tests/webnn/conformance_tests/tanh.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/tanh.https.any.js
@@ -585,10 +585,4 @@ const tanhTests = [
   }
 ];
 
-if (navigator.ml) {
-  tanhTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(tanhTests, buildAndExecuteGraph, getPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/tile.https.any.js b/tests/wpt/tests/webnn/conformance_tests/tile.https.any.js
index fae0c07ccda..83f6cf2657e 100644
--- a/tests/wpt/tests/webnn/conformance_tests/tile.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/tile.https.any.js
@@ -162,10 +162,4 @@ const tileTests = [
   },
 ];
 
-if (navigator.ml) {
-  tileTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getZeroULPTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(tileTests, buildAndExecuteGraph, getZeroULPTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/transpose.https.any.js b/tests/wpt/tests/webnn/conformance_tests/transpose.https.any.js
index e50317dcab9..dd5263e692b 100644
--- a/tests/wpt/tests/webnn/conformance_tests/transpose.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/transpose.https.any.js
@@ -695,10 +695,5 @@ const transposeTests = [
   }
 ];
 
-if (navigator.ml) {
-  transposeTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(buildAndExecuteGraph, getZeroULPTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    transposeTests, buildAndExecuteGraph, getZeroULPTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/triangular.https.any.js b/tests/wpt/tests/webnn/conformance_tests/triangular.https.any.js
index 2e5ea0ddfff..21788bd540d 100644
--- a/tests/wpt/tests/webnn/conformance_tests/triangular.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/triangular.https.any.js
@@ -1307,11 +1307,5 @@ const triangularTests = [
   }
 ];
 
-if (navigator.ml) {
-  triangularTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(
-        buildAndExecuteGraph, getTriangularPrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    triangularTests, buildAndExecuteGraph, getTriangularPrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/conformance_tests/where.https.any.js b/tests/wpt/tests/webnn/conformance_tests/where.https.any.js
index 1100fdda17c..0c3e03e84d5 100644
--- a/tests/wpt/tests/webnn/conformance_tests/where.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/where.https.any.js
@@ -1837,11 +1837,5 @@ const whereTests = [
   }
 ];
 
-if (navigator.ml) {
-  whereTests.filter(isTargetTest).forEach((test) => {
-    webnn_conformance_test(
-        buildAndExecuteGraph, getWherePrecisionTolerance, test);
-  });
-} else {
-  test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
-}
+webnn_conformance_test(
+    whereTests, buildAndExecuteGraph, getWherePrecisionTolerance);
diff --git a/tests/wpt/tests/webnn/resources/utils.js b/tests/wpt/tests/webnn/resources/utils.js
index eb15b329d90..cdf1fe9bce7 100644
--- a/tests/wpt/tests/webnn/resources/utils.js
+++ b/tests/wpt/tests/webnn/resources/utils.js
@@ -199,6 +199,17 @@ const searchParams = new URLSearchParams(location.search);
 const variant = searchParams.get('device') || location.search.substring(1);
 const contextOptions = kContextOptionsForVariant[variant];
 
+async function getContext() {
+  let context;
+  try {
+    context = await navigator.ml.createContext(contextOptions);
+  } catch (e) {
+    throw new AssertionError(
+        `Unable to create context for ${variant} variant. ${e}`);
+  }
+  return context;
+}
+
 const tcNameArray = searchParams.getAll('tc');
 
 function isTargetTest(test) {
@@ -1284,34 +1295,26 @@ function getOutputMinimumLimits(operatorsResources, outputOperandName) {
   return minimumDataTypeSet[operatorName][outputsName];
 }
 
-function getMinimumDataTypeSetJson() {
-  const xhr = new XMLHttpRequest();
-  xhr.open('GET', '../resources/minimum_datatype_set.json', false);
-
+async function getMinimumDataTypeSetJson() {
   try {
-    xhr.send();
+    const response = await fetch('/webnn/resources/minimum_datatype_set.json');
 
-    if (xhr.status !== 200) {
-      throw new Error(`HTTP error! Status: ${xhr.status}`);
+    if (!response.ok) {
+      throw new Error(`HTTP error! Status: ${response.status}`);
     }
 
-    const text = xhr.responseText;
+    const text = await response.text();
     const jsonText =
         text.replace(/\/\/.*|\/\*[\s\S]*?\*\//g, '');  // Remove comments
-    const data = JSON.parse(jsonText);
-    return data;
+    minimumDataTypeSet = JSON.parse(jsonText);
   } catch (error) {
-    throw new AssertionError(
-        `Error fetching and parsing JSON, ${error.message}`);
+    throw new Error(`Error fetching and parsing JSON: ${error.message}`);
   }
+  return minimumDataTypeSet;
 }
 
 function isMinimumTest(test) {
   let isMinimum = false;
-  if (minimumDataTypeSet === undefined) {
-    minimumDataTypeSet = getMinimumDataTypeSetJson();
-  }
-
   const graphResources = test.graph;
   const inputsResources = graphResources.inputs;
 
@@ -1373,31 +1376,44 @@ function isMinimumTest(test) {
   return isMinimum;
 }
 
-const webnn_conformance_test =
-    (buildAndExecuteGraphFunc, toleranceFunc, testResources) => {
-      promise_test(
-          async () => {
-            let context;
-            try {
-              context = await navigator.ml.createContext(contextOptions);
-            } catch (e) {
-              throw new AssertionError(
-                  `Unable to create context for ${variant} variant. ${e}`);
-            }
-            if (!validateContextSupportsGraph(context, testResources.graph) &&
-                !isMinimumTest(testResources)) {
-              // Skip run the non-minimum test that isn't supported by the
-              // context
-              return;
-            }
-            const builder = new MLGraphBuilder(context);
-            const {result, intermediateOperands} =
-                await buildAndExecuteGraphFunc(
-                    context, builder, testResources.graph);
-            assertResultsEquals(
-                toleranceFunc, result, testResources.graph,
-                intermediateOperands);
-          },
-          `${isMinimumTest(testResources) ? '[required]' : '[optional]'} ${
-              testResources.name}`);
-    };
+// This array is to save skipped tests which are optional tests unsupported by
+// the context. It's helpful to debug to get detail skipped tests in browser
+// console by typing testsToSkip after running tests.
+const testsToSkip = [];
+
+async function webnn_conformance_test(
+    tests, buildAndExecuteGraphFunc, toleranceFunc) {
+  if (navigator.ml === undefined) {
+    test(() => assert_implements(navigator.ml, 'missing navigator.ml'));
+  } else {
+    const testsToRun = [];
+    promise_setup(async () => {
+      // Create a context for checking whether tests are supported.
+      const context = await getContext();
+      minimumDataTypeSet = await getMinimumDataTypeSetJson();
+      tests.filter(isTargetTest).forEach((test) => {
+        if (validateContextSupportsGraph(context, test.graph) ||
+            isMinimumTest(test)) {
+          testsToRun.push(test);
+        } else {
+          // This test is optional so it can be skipped.
+          testsToSkip.push(test);
+        }
+      });
+    });
+
+    promise_test(async () => {
+      testsToRun.map((test) => {
+        promise_test(async () => {
+          // Create a context for each test.
+          const context = await getContext();
+          const builder = new MLGraphBuilder(context);
+          const {result, intermediateOperands} =
+              await buildAndExecuteGraphFunc(context, builder, test.graph);
+          assertResultsEquals(
+              toleranceFunc, result, test.graph, intermediateOperands);
+        }, `${isMinimumTest(test) ? '[required]' : '[optional]'} ${test.name}`);
+      });
+    });
+  }
+}
diff --git a/tests/wpt/tests/webrtc/rtp-stats-lifetime.https.html b/tests/wpt/tests/webrtc/rtp-stats-lifetime.https.html
index 1c5ec9142f8..b0a3bf8e09d 100644
--- a/tests/wpt/tests/webrtc/rtp-stats-lifetime.https.html
+++ b/tests/wpt/tests/webrtc/rtp-stats-lifetime.https.html
@@ -126,4 +126,50 @@ promise_test(async t => {
       inboundRtp.packetsReceived, 0,
       'inbound-rtp must only exist after packets have been received');
 }, `RTCInboundRtpStreamStats are created by packet reception`);
+
+promise_test(async t => {
+  const pc1 = new RTCPeerConnection();
+  t.add_cleanup(() => pc1.close());
+  const pc2 = new RTCPeerConnection();
+  t.add_cleanup(() => pc2.close());
+  pc1.onicecandidate = e => pc2.addIceCandidate(e.candidate);
+  pc2.onicecandidate = e => pc1.addIceCandidate(e.candidate);
+
+  // Negotiate a dummy m-section for DTLS to be established.
+  pc1.addTransceiver('video', {direction:'sendonly'});
+  await pc1.setLocalDescription();
+  await pc2.setRemoteDescription(pc1.localDescription);
+  await pc2.setLocalDescription();
+  await pc1.setRemoteDescription(pc2.localDescription);
+
+  // Offer to receive.
+  pc1.addTransceiver('video', {direction:'recvonly'});
+  await pc1.setLocalDescription();
+  await pc2.setRemoteDescription(pc1.localDescription);
+  assert_false(await hasStats(pc1, 'inbound-rtp'),
+               'inbound-rtp does not exist before packets are received');
+  // Answer to send.
+  const transceivers = pc2.getTransceivers();
+  assert_equals(transceivers.length, 2);
+  const transceiver = transceivers[1];
+  const stream = await getNoiseStream({video:true});
+  const [track] = stream.getTracks();
+  t.add_cleanup(() => track.stop());
+  await transceiver.sender.replaceTrack(track);
+  transceiver.direction = 'sendonly';
+  await pc2.setLocalDescription();
+
+  // We never set the remote answer.
+  assert_equals(pc1.signalingState, 'have-local-offer');
+  // But because of early media, we're still able to receive packets.
+  // - Whether or not we unmute the track in response to this is outside the
+  //   scope of this test.
+  const inboundRtp = await getInboundRtpPollUntilItExists(pc1);
+  assert_not_equals(
+      inboundRtp, null,
+      'inbound-rtp should be created in the early media use case');
+  assert_greater_than(
+      inboundRtp.packetsReceived, 0,
+      'inbound-rtp must only exist after packets have been received');
+}, `RTCInboundRtpStreamStats exists for early media`);
 </script>
diff --git a/tests/wpt/tests/webvtt/rendering/cues-with-video/processing-model/evil/media_height_19-ref.html b/tests/wpt/tests/webvtt/rendering/cues-with-video/processing-model/evil/media_height_19-ref.html
index 9f5ae591eee..d5181b5b4d4 100644
--- a/tests/wpt/tests/webvtt/rendering/cues-with-video/processing-model/evil/media_height_19-ref.html
+++ b/tests/wpt/tests/webvtt/rendering/cues-with-video/processing-model/evil/media_height_19-ref.html
@@ -2,6 +2,8 @@
 <title>Reference for WebVTT rendering, when media height is 19 or less, font size should be smaller than when it is 20 and above</title>
 <link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
 <style>
+html { overflow:hidden }
+body { margin:0 }
 .video {
     display: inline-block;
     width: 320px;