From f364b3f6eaa0eec3200e267f9c7d7e1622de82b3 Mon Sep 17 00:00:00 2001
From: Servo WPT Sync <32481905+servo-wpt-sync@users.noreply.github.com>
Date: Sun, 2 Feb 2025 02:40:50 +0100
Subject: [PATCH] Update web-platform-tests to revision
 b'f630424a79c1ae17deaaf27a21efdbca1378af0e' (#35258)

Signed-off-by: WPT Sync Bot <ghbot+wpt-sync@servo.org>
---
 ...tition-navigation.tentative.https.html.ini |    2 +
 ...n-worker-creation.tentative.https.html.ini |    2 +
 .../cross-partition.tentative.https.html.ini  |    2 +
 .../url/url-in-tags-revoke.window.js.ini      |    3 +
 .../line-height-interpolation.html.ini        |  351 --
 .../visibility-interpolation.html.ini         |   39 -
 .../column-gap-interpolation.html.ini         |  117 -
 .../animation/row-gap-interpolation.html.ini  |  117 -
 .../gaps/column-gap-animation-002.html.ini    |    4 -
 .../gaps/column-gap-animation-003.html.ini    |    4 -
 .../css-align/gaps/gap-animation-002.html.ini |    4 -
 .../css-align/gaps/gap-animation-003.html.ini |    4 -
 .../gaps/row-gap-animation-002.html.ini       |    4 -
 .../gaps/row-gap-animation-003.html.ini       |    4 -
 .../background-size-interpolation.html.ini    |  165 -
 .../border-image-slice-interpolation.html.ini |  195 -
 .../border-image-width-interpolation.html.ini |  264 --
 .../box-shadow-interpolation.html.ini         |   39 -
 .../flex-basis-interpolation.html.ini         |   78 -
 .../css/css-fonts/idlharness.html.ini         |   36 +
 .../animations/right-interpolation.html.ini   |   78 -
 .../highlight-cascade-009.html.ini            |    6 +
 ...he-check-pseudo-element.tentative.html.ini |    2 +
 ...ct-arrow-pseudo-element.tentative.html.ini |    2 +
 .../aspect-ratio-interpolation.html.ini       |  156 -
 .../animation/height-interpolation.html.ini   |  270 --
 .../max-height-interpolation.html.ini         |  273 --
 .../max-width-interpolation.html.ini          |  273 --
 .../min-height-interpolation.html.ini         |  273 --
 .../min-width-interpolation.html.ini          |  273 --
 .../animation/width-interpolation.html.ini    |  258 --
 .../stretch/block-height-1.html.ini           |    2 -
 .../stretch/block-height-2.html.ini           |    2 -
 .../hyphenate-limit-chars-computed.html.ini   |    6 +
 .../hyphenate-limit-chars-valid.html.ini      |    6 +
 ...reak-transformation-004.tentative.html.ini |   35 +
 .../perspective-interpolation.html.ini        |  117 -
 .../vertical-align-interpolation.html.ini     |  117 -
 .../animations/z-index-interpolation.html.ini |  117 -
 ...teractivity-inert-focus.tentative.html.ini |    2 -
 .../interactivity-computed.tentative.html.ini |    2 -
 .../parsing/interactivity.tentative.html.ini  |    2 -
 ...-logical-properties-interpolation.html.ini |   57 +-
 ...ate-size-max-height-interpolation.html.ini |  231 +-
 ...late-size-max-width-interpolation.html.ini |  231 +-
 ...ate-size-min-height-interpolation.html.ini |  168 +-
 ...late-size-min-width-interpolation.html.ini |  168 +-
 .../interpolate-size-which-value.html.ini     |    3 -
 .../css/cssom/cssom-pagerule.html.ini         |   30 +
 .../filter-interpolation-002.html.ini         |   39 -
 .../selectors/parsing/parse-slotted.html.ini  |    3 +
 .../reactions/Element.html.ini                |    8 -
 .../dom/idlharness.window.js.ini              |    6 -
 .../tentative/observable-from.any.js.ini      |   12 +
 .../fetch/api/response/json.any.js.ini        |    8 -
 .../quota.tentative.https.window.js.ini       |    2 -
 .../css-font-face.sub.tentative.html.ini      |    3 -
 .../element-picture.https.sub.html.ini        |    3 +
 .../iframe-nosrc.html.ini                     |    3 -
 .../load-pageshow-events-window-open.html.ini |    3 +
 ...tion-unload-cross-origin.sub.window.js.ini |    3 +
 .../replace-before-load/a-click.html.ini      |    3 -
 .../traverse_the_history_2.html.ini           |    3 -
 .../createImageBitmap-serializable.html.ini   |    2 +-
 ...ret-position-edge-cases.tentative.html.ini |    2 -
 ...re.caret-position-edges.tentative.html.ini |    2 -
 ....measure.caret-position.tentative.html.ini |    2 -
 ...ret-position-edge-cases.tentative.html.ini |    2 -
 ...osition-edge-cases.tentative.worker.js.ini |    2 -
 ...re.caret-position-edges.tentative.html.ini |    2 -
 ...ret-position-edges.tentative.worker.js.ini |    2 -
 ....measure.caret-position.tentative.html.ini |    2 -
 .../html/dom/idlharness.https.html.ini        |    3 +
 ...loading-lazy-nav-location-replace.html.ini |    3 +
 .../iframe_sandbox_popups_escaping-1.html.ini |    2 +-
 ...rame_sandbox_popups_nonescaping-1.html.ini |    3 +-
 ...rame_sandbox_popups_nonescaping-3.html.ini |    3 +-
 ...ct-value-selectedOption.tentative.html.ini |    2 -
 .../toggle-events.tentative.html.ini          |   33 +-
 .../invokers/idlharness.tentative.html.ini    |    2 -
 ...terestelement-interface.tentative.html.ini |    2 -
 ...invokeelement-interface.tentative.html.ini |    2 -
 ...ype-reset-popovertarget.tentative.html.ini |    2 +
 .../popover-css-properties.tentative.html.ini |    2 -
 ...opover-types-with-hints.tentative.html.ini |    2 +
 .../execution-timing/077.html.ini             |    3 +
 .../mediasession/setactionhandler.html.ini    |    6 +
 ...ation-id-detached-frame.tentative.html.ini |    4 +
 .../tentative/detached-frame.html.ini         |    2 +
 .../include-frames-originA-A-A.html.ini       |    2 +
 .../include-frames-originA-A.html.ini         |    2 +
 .../include-frames-originA-AA.html.ini        |    2 +
 .../include-frames-originA-AB.html.ini        |    2 +
 .../include-frames-originA-B-A.html.ini       |    2 +
 .../include-frames-originA-B-B.html.ini       |    2 +
 .../include-frames-originA-B.html.ini         |    2 +
 .../performance-entry-source.html.ini         |    2 +
 .../with-filter-options-originA.html.ini      |    2 +
 .../url/url-in-tags-revoke.window.js.ini      |    3 -
 tests/wpt/meta/MANIFEST.json                  | 3445 +++++++++++++++--
 .../mix-blend-mode-video-sibling.html.ini     |    2 +
 ...ation-trigger-shorthand.tentative.html.ini |  270 ++
 .../meta/css/css-fonts/idlharness.html.ini    |   36 +
 .../lang-attribute-affects-rendering.html.ini |    2 +
 .../grid/grid-gap-decorations-001.html.ini    |    2 +
 .../grid/grid-gap-decorations-002.html.ini    |    2 +
 .../grid/grid-gap-decorations-003.html.ini    |    2 +
 .../grid/grid-gap-decorations-004.html.ini    |    2 +
 .../grid/grid-gap-decorations-005.html.ini    |    2 +
 ...ient-eval-predefined-color-spaces.html.ini |    2 +
 .../at-function-cssom.tentative.html.ini      |   99 +
 .../local-var-substitution.html.ini           |   12 +
 .../line-clamp/block-ellipsis-010.html.ini    |    2 +
 .../scroll-buttons-layout-parent.html.ini     |    2 +
 .../scroll-marker-group-016.html.ini          |    2 +
 .../scroll-marker-group-017.html.ini          |    2 +
 ...marker-group-keeps-active-in-view.html.ini |    2 +
 ...scroll-marker-group-layout-parent.html.ini |    2 +
 ...ll-marker-selection-picks-closest.html.ini |   22 +
 ...rs-updated-by-programmatic-scroll.html.ini |    3 +
 .../highlight-cascade-009.html.ini            |    6 +
 .../highlight-cascade-011.html.ini            |    3 +
 .../hyphen-limit-chars-interpolation.html.ini |  288 ++
 ...break-transformation-currency-001.html.ini |    2 +
 ...ak-transformation-punctuation-002.html.ini |    2 +
 .../hyphenate-limit-chars-computed.html.ini   |    6 +
 .../hyphenate-limit-chars-valid.html.ini      |    6 +
 ...reak-transformation-004.tentative.html.ini |   35 +
 .../css-ui/interactivity-inert-find.html.ini  |    9 +
 ...teractivity-inert-modal-dialog-ua.html.ini |    3 +
 ...tentative.html.ini => attr-cycle.html.ini} |    2 +-
 ...dstylesheets-adopt-link.tentative.html.ini |    2 +
 ...adopt-style-subresource.tentative.html.ini |    2 +
 ...stylesheets-adopt-style.tentative.html.ini |    2 +
 .../meta/css/cssom/cssom-pagerule.html.ini    |   30 +
 .../selectors/parsing/parse-slotted.html.ini  |    3 +
 ...als-reportValidity-delegatesFocus.html.ini |    2 +
 .../tentative/observable-from.any.js.ini      |   12 +
 ...mpty-payload.tentative.https.window.js.ini |    1 +
 ...iple-iframes.tentative.https.window.js.ini |    1 +
 ...css-font-face.https.sub.tentative.html.ini |    3 -
 .../iframe-nosrc.html.ini                     |    3 +
 .../load-pageshow-events-window-open.html.ini |    3 -
 .../traverse_the_history_4.html.ini           |    3 -
 .../getContextAttributes.html.ini             |   27 +
 ...ache-storage-corp.tentative.https.html.ini |   36 +
 .../meta/html/dom/idlharness.https.html.ini   |    3 +
 .../iframe_sandbox_popups_escaping-1.html.ini |    2 +-
 .../iframe_sandbox_popups_escaping-2.html.ini |    2 +-
 .../iframe_sandbox_popups_escaping-3.html.ini |    2 +-
 ...rame_sandbox_popups_nonescaping-2.html.ini |    2 +-
 ...rame_sandbox_popups_nonescaping-3.html.ini |    4 +-
 .../focus-ring-rendering.tentative.html.ini   |    2 +
 ...-popup-with-wrapper-div.tentative.html.ini |    2 -
 ...tative.html.ini => toggle-events.html.ini} |   14 +-
 ...sttarget-css-shorthands.tentative.html.ini |   27 +
 .../mediasession/setactionhandler.html.ini    |    6 +
 .../test-navigation-type-reload.html.ini      |   18 -
 .../signatures/tentative/inline.html.ini      |    7 +
 .../Worker/Worker-constructor.html.ini        |    2 -
 tests/wpt/tests/.github/workflows/docker.yml  |    2 +-
 .../idbcursor-advance-continue-async.any.js   |  167 +
 .../idbcursor-advance-continue-async.htm      |  181 -
 .../idbcursor-advance-exception-order.any.js  |  103 +
 .../idbcursor-advance-exception-order.html    |   91 -
 .../idbcursor-advance-invalid.any.js          |  196 +
 .../IndexedDB/idbcursor-advance-invalid.htm   |  192 -
 .../tests/IndexedDB/idbcursor-advance.any.js  |  232 ++
 .../wpt/tests/IndexedDB/idbcursor-advance.htm |  247 --
 .../idbcursor-direction-index-keyrange.any.js |   55 +
 .../idbcursor-direction-index-keyrange.htm    |   60 -
 .../idbcursor-direction-index.any.js          |   53 +
 .../IndexedDB/idbcursor-direction-index.htm   |   57 -
 ...rsor-direction-objectstore-keyrange.any.js |   49 +
 ...bcursor-direction-objectstore-keyrange.htm |   54 -
 .../idbcursor-direction-objectstore.any.js    |   49 +
 .../idbcursor-direction-objectstore.htm       |   56 -
 .../IndexedDB/idbcursor-direction.any.js      |   70 +
 .../tests/IndexedDB/idbcursor-direction.htm   |   76 -
 .../idbfactory_deleteDatabase.any.js          |  116 +
 .../IndexedDB/idbfactory_deleteDatabase.htm   |   25 -
 .../IndexedDB/idbfactory_deleteDatabase2.htm  |   27 -
 .../IndexedDB/idbfactory_deleteDatabase3.htm  |   33 -
 .../IndexedDB/idbfactory_deleteDatabase4.htm  |   62 -
 ...objectstore-add-put-exception-order.any.js |   81 +
 ...dbobjectstore-add-put-exception-order.html |   74 -
 ...dbobjectstore-clear-exception-order.any.js |   56 +
 .../idbobjectstore-clear-exception-order.html |   51 -
 ...bobjectstore-delete-exception-order.any.js |   76 +
 ...idbobjectstore-delete-exception-order.html |   69 -
 ...ctstore-deleteIndex-exception-order.any.js |   77 +
 ...jectstore-deleteIndex-exception-order.html |   68 -
 ...dbobjectstore-query-exception-order.any.js |   64 +
 .../idbobjectstore-query-exception-order.html |   65 -
 ....htm => idbrequest-onupgradeneeded.any.js} |   79 +-
 .../tests/IndexedDB/idbrequest_error.any.js   |   24 +
 .../wpt/tests/IndexedDB/idbrequest_error.html |   25 -
 .../tests/IndexedDB/idbrequest_result.any.js  |   24 +
 .../tests/IndexedDB/idbrequest_result.html    |   25 -
 .../idbtransaction-db-SameObject.any.js       |   21 +
 .../idbtransaction-db-SameObject.html         |   24 -
 .../idbtransaction-oncomplete.any.js          |   44 +
 .../IndexedDB/idbtransaction-oncomplete.htm   |   53 -
 .../wpt/tests/IndexedDB/idbtransaction.any.js |   65 +
 tests/wpt/tests/IndexedDB/idbtransaction.htm  |   63 -
 .../IndexedDB/idbtransaction_abort.any.js     |   37 +
 .../tests/IndexedDB/idbtransaction_abort.htm  |   41 -
 .../idbtransaction_objectStoreNames.any.js    |  192 +
 .../idbtransaction_objectStoreNames.html      |  165 -
 .../tests/accname/name/comp_labelledby.html   |   37 +
 .../detector.https.tentative.any.js           |   25 +-
 tests/wpt/tests/ai/resources/util.js          |   27 +
 ...ranslator_translate.tentative.https.any.js |   60 +-
 .../clear-cache-partitioning.sub.https.html   |  219 ++
 .../clear-site-data/clear-cache.https.html    |    9 +-
 .../support/clear-site-data-cache.py          |   50 +-
 .../dispatcher/remote-executor-worker.js      |    5 +
 .../securitypolicyviolation/source-file.html  |    6 +-
 ...animation-trigger-shorthand.tentative.html |  147 +
 ...mage-table-cells-straddling-no-repeat.html |    1 +
 .../dynamic-change-with-slotted-text-ref.html |    8 +
 .../dynamic-change-with-slotted-text.html     |   32 +
 tests/wpt/tests/css/css-fonts/idlharness.html |    2 +-
 .../lang-attribute-affects-rendering-ref.html |   20 +
 .../lang-attribute-affects-rendering.html     |   24 +
 .../grid/grid-gap-decorations-001.html        |   34 +
 .../grid/grid-gap-decorations-002-ref.html    |   38 +
 .../grid/grid-gap-decorations-002.html        |   34 +
 .../grid/grid-gap-decorations-003-ref.html    |   38 +
 .../grid/grid-gap-decorations-003.html        |   34 +
 .../grid/grid-gap-decorations-004-ref.html    |   38 +
 .../grid/grid-gap-decorations-004.html        |   35 +
 .../grid/grid-gap-decorations-005-ref.html    |   38 +
 .../grid/grid-gap-decorations-005.html        |   35 +
 ...ient-eval-predefined-color-spaces-ref.html |   34 +
 ...gradient-eval-predefined-color-spaces.html |   38 +
 .../gradient/gradient-single-stop-001.html    |    1 +
 .../gradient/gradient-single-stop-002.html    |    1 +
 .../gradient/gradient-single-stop-003.html    |    1 +
 .../gradient/gradient-single-stop-004.html    |    1 +
 .../gradient/gradient-single-stop-005.html    |    1 +
 .../gradient/gradient-single-stop-006.html    |    1 +
 .../gradient/gradient-single-stop-007.html    |    1 +
 .../gradient/gradient-single-stop-008.html    |    1 +
 .../list-style-position-001-notref.html       |   28 +
 .../list-style-position-001-ref.html          |   33 +
 .../css-lists/list-style-position-001.html    |   29 +
 .../at-function-cssom.tentative.html          |  301 ++
 .../css/css-mixins/dashed-function-eval.html  |   14 +-
 .../css-mixins/local-var-substitution.html    |   73 +
 .../tests/css/css-mixins/resources/utils.js   |   31 +
 .../css-nesting/nested-error-recovery.html    |   57 +
 .../line-clamp/block-ellipsis-010.html        |   58 +
 ...mp-content-height-with-dynamic-change.html |    2 +-
 .../reference/block-ellipsis-010-alt-ref.html |   42 +
 .../reference/block-ellipsis-010-ref.html     |   42 +
 ...ontent-height-with-dynamic-change-ref.html |    0
 .../root-element-layout-parent-crash.html     |   20 +
 ...ll-button-activation-content-hit-test.html |   63 +
 .../scroll-button-universal-before.html       |   20 +
 .../scroll-buttons-layout-parent.html         |   35 +
 .../css-overflow/scroll-marker-group-016.html |   36 +
 .../css-overflow/scroll-marker-group-017.html |   40 +
 ...marker-group-keeps-active-in-view-ref.html |   99 +
 ...oll-marker-group-keeps-active-in-view.html |   91 +
 .../scroll-marker-group-layout-parent.html    |   26 +
 ...scroll-marker-selection-picks-closest.html |  146 +
 ...arkers-updated-by-programmatic-scroll.html |  142 +
 .../registered-property-value-003.https.html  |    4 +-
 .../at-property.html                          |    4 +-
 .../highlight-cascade-008.html                |    6 +-
 .../highlight-cascade-009.html                |   13 +-
 .../highlight-cascade-011.html                |   31 +
 .../css-pseudo/highlight-painting-001.html    |    1 +
 .../css/css-pseudo/highlight-styling-001.html |    7 +-
 .../css/css-scoping/slotted-has-001.html      |   26 +
 .../css/css-scoping/slotted-has-002.html      |   26 +
 .../css/css-scoping/slotted-has-003.html      |   26 +
 .../css/css-scoping/slotted-has-004.html      |   26 +
 ...f-order-elements-collapsed-border-ref.html |   41 +
 ...ut-of-order-elements-collapsed-border.html |   42 +
 .../hyphen-limit-chars-interpolation.html     |   54 +
 ...break-transformation-currency-001-ref.html |    8 +
 ...ent-break-transformation-currency-001.html |   23 +
 ...ak-transformation-punctuation-002-ref.html |   10 +
 ...-break-transformation-punctuation-002.html |   20 +
 .../hyphenate-limit-chars-computed.html       |    5 +-
 .../parsing/hyphenate-limit-chars-valid.html  |    6 +-
 ...eg-break-transformation-004.tentative.html |   54 +-
 .../css/css-ui/interactivity-inert-find.html  |   32 +
 .../interactivity-inert-fullscreen-ua.html    |   73 +
 .../interactivity-inert-modal-dialog-ua.html  |    6 +-
 ...r-cycle.tentative.html => attr-cycle.html} |    0
 .../duplicate-tag-rejects-start.html          |   41 +-
 .../style-inheritance.html                    |   36 +-
 .../window-resize-aborts-transition.html      |   93 +-
 ...optedstylesheets-adopt-link.tentative.html |   25 +
 ...ets-adopt-style-subresource.tentative.html |   28 +
 ...ptedstylesheets-adopt-style.tentative.html |   29 +
 tests/wpt/tests/css/cssom/cssom-pagerule.html |   53 +
 .../adoptedstylesheet-adopt-link.css          |    3 +
 .../nth-child-spurious-brace-crash.html       |    6 +
 .../css/selectors/parsing/parse-slotted.html  |    1 +
 ...-reportValidity-delegatesFocus-notref.html |   30 +
 ...ternals-reportValidity-delegatesFocus.html |   33 +
 .../allow-attribute.https.html                |   15 +-
 .../wpt/tests/digital-credentials/dc-types.ts |   17 +-
 .../get.tentative.https.html                  |   18 +-
 .../digital-credentials/support/helper.js     |   47 +-
 tests/wpt/tests/dom/abort/event.any.js        |    3 +
 .../tentative/observable-from.any.js          |  230 +-
 .../tests/editing/data/insertorderedlist.js   |   24 +-
 .../tests/editing/data/insertunorderedlist.js |   24 +-
 .../editing/include/editor-test-utils.js      |    5 +
 ...ast-word-in-inline-block-editing-host.html |   29 +
 ...-anchor-with-href-in-content-editable.html |   41 +-
 ...e-in-list-with-inline-style.tentative.html |   41 +-
 ...ars-following-collapsible-white-space.html |    6 +-
 ...ars-following-collapsible-white-space.html |    6 +-
 ...-text-in-direct-child-of-editing-host.html |  109 +
 .../confirm-idp-login.https.html              |    2 +-
 .../login-page-broken.https.html              |   37 +
 tests/wpt/tests/fedcm/support/idp_close.html  |    7 +
 .../fedcm/support/manifest_broken_login.json  |    7 +
 .../resolve-to-config-promise.https.html      |    7 +-
 ...multiple-iframes.tentative.https.window.js |   30 +-
 ...-config-passed-to-worklets.https.window.js |   18 +
 .../resources/fledge_http_server_util.py      |    3 +-
 .../score-ad-browser-signals.https.window.js  |   77 +
 .../trusted-scoring-signals.https.window.js   |   22 +-
 .../2d.composite.canvas.clear.html            |    6 +-
 .../compositing/2d.composite.canvas.copy.html |    6 +-
 .../2d.composite.canvas.destination-atop.html |    6 +-
 .../2d.composite.canvas.destination-in.html   |    6 +-
 .../2d.composite.canvas.destination-out.html  |    6 +-
 .../2d.composite.canvas.destination-over.html |    6 +-
 .../2d.composite.canvas.lighter.html          |    6 +-
 .../2d.composite.canvas.source-atop.html      |    6 +-
 .../2d.composite.canvas.source-in.html        |    6 +-
 .../2d.composite.canvas.source-out.html       |    6 +-
 .../2d.composite.canvas.source-over.html      |    6 +-
 .../compositing/2d.composite.canvas.xor.html  |    6 +-
 .../compositing/2d.composite.clip.clear.html  |    4 +-
 .../compositing/2d.composite.clip.copy.html   |    4 +-
 .../2d.composite.clip.destination-atop.html   |    4 +-
 .../2d.composite.clip.destination-in.html     |    4 +-
 .../2d.composite.clip.destination-out.html    |    4 +-
 .../2d.composite.clip.destination-over.html   |    4 +-
 .../2d.composite.clip.lighter.html            |    4 +-
 .../2d.composite.clip.source-atop.html        |    4 +-
 .../2d.composite.clip.source-in.html          |    4 +-
 .../2d.composite.clip.source-out.html         |    4 +-
 .../2d.composite.clip.source-over.html        |    4 +-
 .../compositing/2d.composite.clip.xor.html    |    4 +-
 ...2d.composite.uncovered.nocontext.copy.html |    4 +-
 ....uncovered.nocontext.destination-atop.html |    4 +-
 ...te.uncovered.nocontext.destination-in.html |    4 +-
 ...mposite.uncovered.nocontext.source-in.html |    4 +-
 ...posite.uncovered.nocontext.source-out.html |    4 +-
 .../getContextAttributes.html                 |    1 +
 .../2d.composite.canvas.clear.html            |   12 +-
 .../2d.composite.canvas.clear.worker.js       |   12 +-
 .../compositing/2d.composite.canvas.copy.html |   12 +-
 .../2d.composite.canvas.copy.worker.js        |   12 +-
 .../2d.composite.canvas.destination-atop.html |   12 +-
 ...omposite.canvas.destination-atop.worker.js |   12 +-
 .../2d.composite.canvas.destination-in.html   |   12 +-
 ....composite.canvas.destination-in.worker.js |   12 +-
 .../2d.composite.canvas.destination-out.html  |   12 +-
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diff --git a/tests/wpt/meta-legacy-layout/FileAPI/BlobURL/cross-partition-navigation.tentative.https.html.ini b/tests/wpt/meta-legacy-layout/FileAPI/BlobURL/cross-partition-navigation.tentative.https.html.ini
new file mode 100644
index 00000000000..575e16729cb
--- /dev/null
+++ b/tests/wpt/meta-legacy-layout/FileAPI/BlobURL/cross-partition-navigation.tentative.https.html.ini
@@ -0,0 +1,2 @@
+[cross-partition-navigation.tentative.https.html]
+  expected: TIMEOUT
diff --git a/tests/wpt/meta-legacy-layout/FileAPI/BlobURL/cross-partition-worker-creation.tentative.https.html.ini b/tests/wpt/meta-legacy-layout/FileAPI/BlobURL/cross-partition-worker-creation.tentative.https.html.ini
new file mode 100644
index 00000000000..06d580aa061
--- /dev/null
+++ b/tests/wpt/meta-legacy-layout/FileAPI/BlobURL/cross-partition-worker-creation.tentative.https.html.ini
@@ -0,0 +1,2 @@
+[cross-partition-worker-creation.tentative.https.html]
+  expected: TIMEOUT
diff --git a/tests/wpt/meta-legacy-layout/FileAPI/BlobURL/cross-partition.tentative.https.html.ini b/tests/wpt/meta-legacy-layout/FileAPI/BlobURL/cross-partition.tentative.https.html.ini
new file mode 100644
index 00000000000..5f8ed6cf262
--- /dev/null
+++ b/tests/wpt/meta-legacy-layout/FileAPI/BlobURL/cross-partition.tentative.https.html.ini
@@ -0,0 +1,2 @@
+[cross-partition.tentative.https.html]
+  expected: TIMEOUT
diff --git a/tests/wpt/meta-legacy-layout/FileAPI/url/url-in-tags-revoke.window.js.ini b/tests/wpt/meta-legacy-layout/FileAPI/url/url-in-tags-revoke.window.js.ini
index 282ab0b2525..35fe4fd6e0d 100644
--- a/tests/wpt/meta-legacy-layout/FileAPI/url/url-in-tags-revoke.window.js.ini
+++ b/tests/wpt/meta-legacy-layout/FileAPI/url/url-in-tags-revoke.window.js.ini
@@ -14,3 +14,6 @@
 
   [Opening a blob URL in a new window by clicking an <a> tag works immediately before revoking the URL.]
     expected: TIMEOUT
+
+  [Fetching a blob URL immediately before revoking it works in <script> tags.]
+    expected: TIMEOUT
diff --git a/tests/wpt/meta-legacy-layout/css/CSS2/linebox/animations/line-height-interpolation.html.ini b/tests/wpt/meta-legacy-layout/css/CSS2/linebox/animations/line-height-interpolation.html.ini
index 073a175d4fd..7d12899961b 100644
--- a/tests/wpt/meta-legacy-layout/css/CSS2/linebox/animations/line-height-interpolation.html.ini
+++ b/tests/wpt/meta-legacy-layout/css/CSS2/linebox/animations/line-height-interpolation.html.ini
@@ -1,7 +1,4 @@
 [line-height-interpolation.html]
-  [CSS Animations: property <line-height> from [14px\] to [normal\] at (0.5) should be [normal\]]
-    expected: FAIL
-
   [Web Animations: property <line-height> from [14q\] to [normal\] at (0.5) should be [normal\]]
     expected: FAIL
 
@@ -14,102 +11,48 @@
   [Web Animations: property <line-height> from [14px\] to [normal\] at (0.5) should be [normal\]]
     expected: FAIL
 
-  [CSS Animations: property <line-height> from [4\] to [14px\] at (0.3) should be [4\]]
-    expected: FAIL
-
-  [CSS Animations: property <line-height> from [4\] to [normal\] at (1.5) should be [normal\]]
-    expected: FAIL
-
-  [CSS Animations: property <line-height> from [normal\] to [14px\] at (0.3) should be [normal\]]
-    expected: FAIL
-
   [Web Animations: property <line-height> from [4q\] to [14q\] at (0.6) should be [10q\]]
     expected: FAIL
 
-  [CSS Animations: property <line-height> from [normal\] to [4\] at (0.6) should be [4\]]
-    expected: FAIL
-
   [Web Animations: property <line-height> from [inherit\] to [20px\] at (1) should be [20px\]]
     expected: FAIL
 
-  [CSS Animations: property <line-height> from [14px\] to [4\] at (1.5) should be [4\]]
-    expected: FAIL
-
   [Web Animations: property <line-height> from [4px\] to [14px\] at (1) should be [14px\]]
     expected: FAIL
 
-  [CSS Animations: property <line-height> from [initial\] to [20px\] at (0) should be [initial\]]
-    expected: FAIL
-
-  [CSS Animations: property <line-height> from [14q\] to [normal\] at (0) should be [14q\]]
-    expected: FAIL
-
-  [CSS Animations: property <line-height> from [normal\] to [4\] at (0) should be [normal\]]
-    expected: FAIL
-
   [Web Animations: property <line-height> from [4\] to [normal\] at (0.6) should be [normal\]]
     expected: FAIL
 
   [Web Animations: property <line-height> from [4\] to [normal\] at (-0.3) should be [4\]]
     expected: FAIL
 
-  [CSS Animations: property <line-height> from [normal\] to [4\] at (0.5) should be [4\]]
-    expected: FAIL
-
   [Web Animations: property <line-height> from [4q\] to [14q\] at (1) should be [14q\]]
     expected: FAIL
 
   [Web Animations: property <line-height> from [4\] to [14px\] at (0) should be [4\]]
     expected: FAIL
 
-  [CSS Animations: property <line-height> from [initial\] to [20px\] at (0.6) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <line-height> from [4\] to [14q\] at (1.5) should be [14q\]]
     expected: FAIL
 
-  [CSS Animations: property <line-height> from [4\] to [14q\] at (0) should be [4\]]
-    expected: FAIL
-
-  [CSS Animations: property <line-height> from [4\] to [14px\] at (1.5) should be [14px\]]
-    expected: FAIL
-
-  [CSS Animations: property <line-height> from [14q\] to [normal\] at (-0.3) should be [14q\]]
-    expected: FAIL
-
   [Web Animations: property <line-height> from [4\] to [14px\] at (0.6) should be [14px\]]
     expected: FAIL
 
-  [CSS Animations: property <line-height> from [14px\] to [4\] at (0.3) should be [14px\]]
-    expected: FAIL
-
   [Web Animations: property <line-height> from [normal\] to [14px\] at (-0.3) should be [normal\]]
     expected: FAIL
 
-  [CSS Animations: property <line-height> from [14px\] to [4\] at (-0.3) should be [14px\]]
-    expected: FAIL
-
-  [CSS Animations: property <line-height> from [4\] to [normal\] at (0) should be [4\]]
-    expected: FAIL
-
   [Web Animations: property <line-height> from neutral to [20px\] at (-0.3) should be [7px\]]
     expected: FAIL
 
   [Web Animations: property <line-height> from [14q\] to [normal\] at (0.3) should be [14q\]]
     expected: FAIL
 
-  [CSS Animations: property <line-height> from [14px\] to [normal\] at (-0.3) should be [14px\]]
-    expected: FAIL
-
   [Web Animations: property <line-height> from [initial\] to [20px\] at (0.3) should be [initial\]]
     expected: FAIL
 
   [Web Animations: property <line-height> from [initial\] to [20px\] at (1) should be [20px\]]
     expected: FAIL
 
-  [CSS Animations: property <line-height> from [4\] to [14q\] at (-0.3) should be [4\]]
-    expected: FAIL
-
   [Web Animations: property <line-height> from [4\] to [14q\] at (0.3) should be [4\]]
     expected: FAIL
 
@@ -125,9 +68,6 @@
   [Web Animations: property <line-height> from [4\] to [14px\] at (0.5) should be [14px\]]
     expected: FAIL
 
-  [CSS Animations: property <line-height> from [4\] to [14q\] at (0.5) should be [14q\]]
-    expected: FAIL
-
   [Web Animations: property <line-height> from [normal\] to [normal\] at (1) should be [normal\]]
     expected: FAIL
 
@@ -137,9 +77,6 @@
   [Web Animations: property <line-height> from [normal\] to [4\] at (0.6) should be [4\]]
     expected: FAIL
 
-  [CSS Animations: property <line-height> from [normal\] to [14px\] at (0) should be [normal\]]
-    expected: FAIL
-
   [Web Animations: property <line-height> from [14px\] to [normal\] at (0.6) should be [normal\]]
     expected: FAIL
 
@@ -173,9 +110,6 @@
   [Web Animations: property <line-height> from [14px\] to [4\] at (0.3) should be [14px\]]
     expected: FAIL
 
-  [CSS Animations: property <line-height> from [4\] to [14q\] at (0.6) should be [14q\]]
-    expected: FAIL
-
   [Web Animations: property <line-height> from [4\] to [14\] at (0) should be [4\]]
     expected: FAIL
 
@@ -194,15 +128,9 @@
   [Web Animations: property <line-height> from [4px\] to [14px\] at (1.5) should be [19px\]]
     expected: FAIL
 
-  [CSS Animations: property <line-height> from [14px\] to [normal\] at (1) should be [normal\]]
-    expected: FAIL
-
   [Web Animations: property <line-height> from [inherit\] to [20px\] at (0.6) should be [24px\]]
     expected: FAIL
 
-  [CSS Animations: property <line-height> from [4\] to [normal\] at (-0.3) should be [4\]]
-    expected: FAIL
-
   [Web Animations: property <line-height> from [normal\] to [14px\] at (0) should be [normal\]]
     expected: FAIL
 
@@ -221,18 +149,6 @@
   [Web Animations: property <line-height> from [unset\] to [20px\] at (1) should be [20px\]]
     expected: FAIL
 
-  [CSS Animations: property <line-height> from [14px\] to [4\] at (0) should be [14px\]]
-    expected: FAIL
-
-  [CSS Animations: property <line-height> from [4\] to [14px\] at (-0.3) should be [4\]]
-    expected: FAIL
-
-  [CSS Animations: property <line-height> from [normal\] to [4\] at (0.3) should be [normal\]]
-    expected: FAIL
-
-  [CSS Animations: property <line-height> from [14px\] to [normal\] at (0.6) should be [normal\]]
-    expected: FAIL
-
   [Web Animations: property <line-height> from [4\] to [14q\] at (1) should be [14q\]]
     expected: FAIL
 
@@ -242,93 +158,45 @@
   [Web Animations: property <line-height> from neutral to [20px\] at (0.3) should be [13px\]]
     expected: FAIL
 
-  [CSS Animations: property <line-height> from [14px\] to [normal\] at (0.3) should be [14px\]]
-    expected: FAIL
-
   [Web Animations: property <line-height> from [initial\] to [20px\] at (-0.3) should be [initial\]]
     expected: FAIL
 
-  [CSS Animations: property <line-height> from [normal\] to [4\] at (1.5) should be [4\]]
-    expected: FAIL
-
-  [CSS Animations: property <line-height> from [14px\] to [4\] at (0.5) should be [4\]]
-    expected: FAIL
-
-  [CSS Animations: property <line-height> from [4\] to [normal\] at (0.3) should be [4\]]
-    expected: FAIL
-
   [Web Animations: property <line-height> from [normal\] to [4\] at (0) should be [normal\]]
     expected: FAIL
 
   [Web Animations: property <line-height> from [unset\] to [20px\] at (0.6) should be [24px\]]
     expected: FAIL
 
-  [CSS Animations: property <line-height> from [4\] to [14px\] at (0.6) should be [14px\]]
-    expected: FAIL
-
   [Web Animations: property <line-height> from [14px\] to [normal\] at (1.5) should be [normal\]]
     expected: FAIL
 
-  [CSS Animations: property <line-height> from [4\] to [14px\] at (1) should be [14px\]]
-    expected: FAIL
-
   [Web Animations: property <line-height> from [inherit\] to [20px\] at (-0.3) should be [33px\]]
     expected: FAIL
 
-  [CSS Animations: property <line-height> from [4\] to [14q\] at (1.5) should be [14q\]]
-    expected: FAIL
-
-  [CSS Animations: property <line-height> from [normal\] to [14px\] at (1.5) should be [14px\]]
-    expected: FAIL
-
-  [CSS Animations: property <line-height> from [14q\] to [normal\] at (1.5) should be [normal\]]
-    expected: FAIL
-
   [Web Animations: property <line-height> from [4\] to [14\] at (-1) should be [0\]]
     expected: FAIL
 
   [Web Animations: property <line-height> from [14px\] to [4\] at (1.5) should be [4\]]
     expected: FAIL
 
-  [CSS Animations: property <line-height> from [initial\] to [20px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Animations: property <line-height> from [4\] to [14px\] at (0.5) should be [14px\]]
-    expected: FAIL
-
-  [CSS Animations: property <line-height> from [14q\] to [normal\] at (0.3) should be [14q\]]
-    expected: FAIL
-
   [Web Animations: property <line-height> from [normal\] to [14px\] at (0.3) should be [normal\]]
     expected: FAIL
 
-  [CSS Animations: property <line-height> from [normal\] to [14px\] at (0.5) should be [14px\]]
-    expected: FAIL
-
   [Web Animations: property <line-height> from neutral to [20px\] at (0.6) should be [16px\]]
     expected: FAIL
 
   [Web Animations: property <line-height> from [4\] to [14\] at (1) should be [14\]]
     expected: FAIL
 
-  [CSS Animations: property <line-height> from [normal\] to [4\] at (1) should be [4\]]
-    expected: FAIL
-
   [Web Animations: property <line-height> from [initial\] to [20px\] at (0.6) should be [20px\]]
     expected: FAIL
 
   [Web Animations: property <line-height> from [normal\] to [normal\] at (-0.3) should be [normal\]]
     expected: FAIL
 
-  [CSS Animations: property <line-height> from [14q\] to [normal\] at (1) should be [normal\]]
-    expected: FAIL
-
   [Web Animations: property <line-height> from [normal\] to [normal\] at (0.6) should be [normal\]]
     expected: FAIL
 
-  [CSS Animations: property <line-height> from [initial\] to [20px\] at (1.5) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <line-height> from [14px\] to [normal\] at (-0.3) should be [14px\]]
     expected: FAIL
 
@@ -341,21 +209,9 @@
   [Web Animations: property <line-height> from [4px\] to [14px\] at (-0.3) should be [1px\]]
     expected: FAIL
 
-  [CSS Animations: property <line-height> from [4\] to [normal\] at (1) should be [normal\]]
-    expected: FAIL
-
   [Web Animations: property <line-height> from [normal\] to [4\] at (-0.3) should be [normal\]]
     expected: FAIL
 
-  [CSS Animations: property <line-height> from [14px\] to [normal\] at (0) should be [14px\]]
-    expected: FAIL
-
-  [CSS Animations: property <line-height> from [4\] to [14px\] at (0) should be [4\]]
-    expected: FAIL
-
-  [CSS Animations: property <line-height> from [14px\] to [normal\] at (1.5) should be [normal\]]
-    expected: FAIL
-
   [Web Animations: property <line-height> from [4q\] to [14q\] at (1.5) should be [19q\]]
     expected: FAIL
 
@@ -365,9 +221,6 @@
   [Web Animations: property <line-height> from [inherit\] to [20px\] at (1.5) should be [15px\]]
     expected: FAIL
 
-  [CSS Animations: property <line-height> from [normal\] to [14px\] at (0.6) should be [14px\]]
-    expected: FAIL
-
   [Web Animations: property <line-height> from [inherit\] to [20px\] at (0.3) should be [27px\]]
     expected: FAIL
 
@@ -392,27 +245,15 @@
   [Web Animations: property <line-height> from [14px\] to [normal\] at (1) should be [normal\]]
     expected: FAIL
 
-  [CSS Animations: property <line-height> from [4\] to [normal\] at (0.6) should be [normal\]]
-    expected: FAIL
-
   [Web Animations: property <line-height> from [initial\] to [20px\] at (0.5) should be [20px\]]
     expected: FAIL
 
-  [CSS Animations: property <line-height> from [4\] to [14q\] at (0.3) should be [4\]]
-    expected: FAIL
-
-  [CSS Animations: property <line-height> from [14q\] to [normal\] at (0.5) should be [normal\]]
-    expected: FAIL
-
   [Web Animations: property <line-height> from [14px\] to [normal\] at (0.3) should be [14px\]]
     expected: FAIL
 
   [Web Animations: property <line-height> from [normal\] to [14px\] at (1.5) should be [14px\]]
     expected: FAIL
 
-  [CSS Animations: property <line-height> from [initial\] to [20px\] at (0.5) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <line-height> from [4px\] to [14px\] at (0.6) should be [10px\]]
     expected: FAIL
 
@@ -428,12 +269,6 @@
   [Web Animations: property <line-height> from [4\] to [14\] at (0.3) should be [7\]]
     expected: FAIL
 
-  [CSS Animations: property <line-height> from [normal\] to [4\] at (-0.3) should be [normal\]]
-    expected: FAIL
-
-  [CSS Animations: property <line-height> from [4\] to [normal\] at (0.5) should be [normal\]]
-    expected: FAIL
-
   [Web Animations: property <line-height> from [14q\] to [normal\] at (1) should be [normal\]]
     expected: FAIL
 
@@ -443,18 +278,9 @@
   [Web Animations: property <line-height> from neutral to [20px\] at (-1) should be [0px\]]
     expected: FAIL
 
-  [CSS Animations: property <line-height> from [14q\] to [normal\] at (0.6) should be [normal\]]
-    expected: FAIL
-
-  [CSS Animations: property <line-height> from [4\] to [14q\] at (1) should be [14q\]]
-    expected: FAIL
-
   [Web Animations: property <line-height> from [initial\] to [20px\] at (0) should be [initial\]]
     expected: FAIL
 
-  [CSS Animations: property <line-height> from [14px\] to [4\] at (0.6) should be [4\]]
-    expected: FAIL
-
   [Web Animations: property <line-height> from [4\] to [14q\] at (0) should be [4\]]
     expected: FAIL
 
@@ -467,21 +293,12 @@
   [Web Animations: property <line-height> from [4\] to [normal\] at (1.5) should be [normal\]]
     expected: FAIL
 
-  [CSS Animations: property <line-height> from [normal\] to [14px\] at (-0.3) should be [normal\]]
-    expected: FAIL
-
   [Web Animations: property <line-height> from [unset\] to [20px\] at (1.5) should be [15px\]]
     expected: FAIL
 
-  [CSS Animations: property <line-height> from [initial\] to [20px\] at (1) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <line-height> from [4px\] to [14px\] at (0.3) should be [7px\]]
     expected: FAIL
 
-  [CSS Animations: property <line-height> from [14px\] to [4\] at (1) should be [4\]]
-    expected: FAIL
-
   [Web Animations: property <line-height> from [normal\] to [4\] at (0.5) should be [4\]]
     expected: FAIL
 
@@ -494,12 +311,6 @@
   [Web Animations: property <line-height> from [4\] to [14px\] at (1) should be [14px\]]
     expected: FAIL
 
-  [CSS Animations: property <line-height> from [initial\] to [20px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Animations: property <line-height> from [normal\] to [14px\] at (1) should be [14px\]]
-    expected: FAIL
-
   [Web Animations: property <line-height> from [4q\] to [14q\] at (0) should be [4q\]]
     expected: FAIL
 
@@ -601,165 +412,3 @@
 
   [CSS Transitions: property <line-height> from [14q\] to [normal\] at (0.3) should be [14q\]]
     expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <line-height> from [initial\] to [20px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <line-height> from [initial\] to [20px\] at (0) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <line-height> from [initial\] to [20px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <line-height> from [initial\] to [20px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <line-height> from [initial\] to [20px\] at (0) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <line-height> from [initial\] to [20px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <line-height> from [4\] to [14px\] at (-0.3) should be [4\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <line-height> from [4\] to [14px\] at (0) should be [4\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <line-height> from [4\] to [14px\] at (0.3) should be [4\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <line-height> from [4\] to [14px\] at (-0.3) should be [4\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <line-height> from [4\] to [14px\] at (0) should be [4\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <line-height> from [4\] to [14px\] at (0.3) should be [4\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <line-height> from [14px\] to [normal\] at (-0.3) should be [14px\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <line-height> from [14px\] to [normal\] at (0) should be [14px\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <line-height> from [14px\] to [normal\] at (0.3) should be [14px\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <line-height> from [14px\] to [normal\] at (-0.3) should be [14px\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <line-height> from [14px\] to [normal\] at (0) should be [14px\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <line-height> from [14px\] to [normal\] at (0.3) should be [14px\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <line-height> from [normal\] to [4\] at (-0.3) should be [normal\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <line-height> from [normal\] to [4\] at (0) should be [normal\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <line-height> from [normal\] to [4\] at (0.3) should be [normal\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <line-height> from [normal\] to [4\] at (-0.3) should be [normal\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <line-height> from [normal\] to [4\] at (0) should be [normal\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <line-height> from [normal\] to [4\] at (0.3) should be [normal\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <line-height> from [4\] to [normal\] at (-0.3) should be [4\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <line-height> from [4\] to [normal\] at (0) should be [4\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <line-height> from [4\] to [normal\] at (0.3) should be [4\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <line-height> from [4\] to [normal\] at (-0.3) should be [4\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <line-height> from [4\] to [normal\] at (0) should be [4\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <line-height> from [4\] to [normal\] at (0.3) should be [4\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <line-height> from [normal\] to [14px\] at (-0.3) should be [normal\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <line-height> from [normal\] to [14px\] at (0) should be [normal\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <line-height> from [normal\] to [14px\] at (0.3) should be [normal\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <line-height> from [normal\] to [14px\] at (-0.3) should be [normal\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <line-height> from [normal\] to [14px\] at (0) should be [normal\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <line-height> from [normal\] to [14px\] at (0.3) should be [normal\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <line-height> from [14px\] to [4\] at (-0.3) should be [14px\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <line-height> from [14px\] to [4\] at (0) should be [14px\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <line-height> from [14px\] to [4\] at (0.3) should be [14px\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <line-height> from [14px\] to [4\] at (-0.3) should be [14px\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <line-height> from [14px\] to [4\] at (0) should be [14px\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <line-height> from [14px\] to [4\] at (0.3) should be [14px\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <line-height> from [4\] to [14q\] at (-0.3) should be [4\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <line-height> from [4\] to [14q\] at (0) should be [4\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <line-height> from [4\] to [14q\] at (0.3) should be [4\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <line-height> from [4\] to [14q\] at (-0.3) should be [4\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <line-height> from [4\] to [14q\] at (0) should be [4\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <line-height> from [4\] to [14q\] at (0.3) should be [4\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <line-height> from [14q\] to [normal\] at (-0.3) should be [14q\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <line-height> from [14q\] to [normal\] at (0) should be [14q\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <line-height> from [14q\] to [normal\] at (0.3) should be [14q\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <line-height> from [14q\] to [normal\] at (-0.3) should be [14q\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <line-height> from [14q\] to [normal\] at (0) should be [14q\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <line-height> from [14q\] to [normal\] at (0.3) should be [14q\]]
-    expected: FAIL
diff --git a/tests/wpt/meta-legacy-layout/css/CSS2/visufx/animation/visibility-interpolation.html.ini b/tests/wpt/meta-legacy-layout/css/CSS2/visufx/animation/visibility-interpolation.html.ini
index f6bfcfffc5c..c6d2d4cb29c 100644
--- a/tests/wpt/meta-legacy-layout/css/CSS2/visufx/animation/visibility-interpolation.html.ini
+++ b/tests/wpt/meta-legacy-layout/css/CSS2/visufx/animation/visibility-interpolation.html.ini
@@ -2,12 +2,6 @@
   [visibility interpolation]
     expected: FAIL
 
-  [CSS Animations: property <visibility> from [collapse\] to [hidden\] at (1) should be [hidden\]]
-    expected: FAIL
-
-  [CSS Animations: property <visibility> from [collapse\] to [hidden\] at (-0.3) should be [collapse\]]
-    expected: FAIL
-
   [Web Animations: property <visibility> from [visible\] to [hidden\] at (0) should be [visible\]]
     expected: FAIL
 
@@ -17,15 +11,9 @@
   [Web Animations: property <visibility> from [visible\] to [hidden\] at (1.5) should be [hidden\]]
     expected: FAIL
 
-  [CSS Animations: property <visibility> from [collapse\] to [hidden\] at (1.5) should be [hidden\]]
-    expected: FAIL
-
   [Web Animations: property <visibility> from [visible\] to [visible\] at (0) should be [visible\]]
     expected: FAIL
 
-  [CSS Animations: property <visibility> from [collapse\] to [hidden\] at (0.3) should be [collapse\]]
-    expected: FAIL
-
   [Web Animations: property <visibility> from [collapse\] to [visible\] at (1) should be [visible\]]
     expected: FAIL
 
@@ -41,18 +29,12 @@
   [Web Animations: property <visibility> from [collapse\] to [hidden\] at (0.5) should be [hidden\]]
     expected: FAIL
 
-  [CSS Animations: property <visibility> from [collapse\] to [hidden\] at (0.5) should be [hidden\]]
-    expected: FAIL
-
   [Web Animations: property <visibility> from [collapse\] to [visible\] at (0.1) should be [visible\]]
     expected: FAIL
 
   [Web Animations: property <visibility> from [collapse\] to [hidden\] at (1.5) should be [hidden\]]
     expected: FAIL
 
-  [CSS Animations: property <visibility> from [collapse\] to [hidden\] at (0.6) should be [hidden\]]
-    expected: FAIL
-
   [Web Animations: property <visibility> from [collapse\] to [visible\] at (-1) should be [collapse\]]
     expected: FAIL
 
@@ -89,9 +71,6 @@
   [Web Animations: property <visibility> from [visible\] to [visible\] at (-1) should be [visible\]]
     expected: FAIL
 
-  [CSS Animations: property <visibility> from [collapse\] to [hidden\] at (0) should be [collapse\]]
-    expected: FAIL
-
   [Web Animations: property <visibility> from [collapse\] to [hidden\] at (0.6) should be [hidden\]]
     expected: FAIL
 
@@ -121,21 +100,3 @@
 
   [CSS Transitions: property <visibility> from [collapse\] to [hidden\] at (0.3) should be [collapse\]]
     expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <visibility> from [collapse\] to [hidden\] at (-0.3) should be [collapse\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <visibility> from [collapse\] to [hidden\] at (0) should be [collapse\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <visibility> from [collapse\] to [hidden\] at (0.3) should be [collapse\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <visibility> from [collapse\] to [hidden\] at (-0.3) should be [collapse\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <visibility> from [collapse\] to [hidden\] at (0) should be [collapse\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <visibility> from [collapse\] to [hidden\] at (0.3) should be [collapse\]]
-    expected: FAIL
diff --git a/tests/wpt/meta-legacy-layout/css/css-align/animation/column-gap-interpolation.html.ini b/tests/wpt/meta-legacy-layout/css/css-align/animation/column-gap-interpolation.html.ini
index b850658286b..82ef6b0d55f 100644
--- a/tests/wpt/meta-legacy-layout/css/css-align/animation/column-gap-interpolation.html.ini
+++ b/tests/wpt/meta-legacy-layout/css/css-align/animation/column-gap-interpolation.html.ini
@@ -5,9 +5,6 @@
   [Web Animations: property <column-gap> from [0px\] to [100px\] at (0.3) should be [30px\]]
     expected: FAIL
 
-  [CSS Animations: property <column-gap> from [normal\] to [20px\] at (1.5) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <column-gap> from [normal\] to [20px\] at (0.5) should be [20px\]]
     expected: FAIL
 
@@ -29,9 +26,6 @@
   [Web Animations: property <column-gap> from [unset\] to [20px\] at (0.3) should be [unset\]]
     expected: FAIL
 
-  [CSS Animations: property <column-gap> from [initial\] to [20px\] at (1.5) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <column-gap> from [unset\] to [20px\] at (1) should be [20px\]]
     expected: FAIL
 
@@ -41,27 +35,15 @@
   [Web Animations: property <column-gap> from [inherit\] to [20px\] at (1.5) should be [0px\]]
     expected: FAIL
 
-  [CSS Animations: property <column-gap> from [normal\] to [20px\] at (1) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <column-gap> from [initial\] to [20px\] at (1.5) should be [20px\]]
     expected: FAIL
 
-  [CSS Animations: property <column-gap> from [unset\] to [20px\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
   [Web Animations: property <column-gap> from [initial\] to [20px\] at (0.5) should be [20px\]]
     expected: FAIL
 
-  [CSS Animations: property <column-gap> from [initial\] to [20px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
   [Web Animations: property <column-gap> from [normal\] to [20px\] at (1.5) should be [20px\]]
     expected: FAIL
 
-  [CSS Animations: property <column-gap> from [initial\] to [20px\] at (1) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <column-gap> from [0px\] to [100px\] at (0.6) should be [60px\]]
     expected: FAIL
 
@@ -77,21 +59,9 @@
   [Web Animations: property <column-gap> from [unset\] to [20px\] at (-0.3) should be [unset\]]
     expected: FAIL
 
-  [CSS Animations: property <column-gap> from [unset\] to [20px\] at (0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Animations: property <column-gap> from [initial\] to [20px\] at (0) should be [initial\]]
-    expected: FAIL
-
-  [CSS Animations: property <column-gap> from [normal\] to [20px\] at (0.6) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <column-gap> from [inherit\] to [20px\] at (0) should be [90px\]]
     expected: FAIL
 
-  [CSS Animations: property <column-gap> from [normal\] to [20px\] at (-0.3) should be [normal\]]
-    expected: FAIL
-
   [Web Animations: property <column-gap> from [0px\] to [100px\] at (-0.3) should be [0\]]
     expected: FAIL
 
@@ -110,9 +80,6 @@
   [Web Animations: property <column-gap> from [initial\] to [20px\] at (0) should be [initial\]]
     expected: FAIL
 
-  [CSS Animations: property <column-gap> from [unset\] to [20px\] at (1) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <column-gap> from [initial\] to [20px\] at (0.6) should be [20px\]]
     expected: FAIL
 
@@ -125,51 +92,24 @@
   [Web Animations: property <column-gap> from [initial\] to [20px\] at (1) should be [20px\]]
     expected: FAIL
 
-  [CSS Animations: property <column-gap> from [initial\] to [20px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Animations: property <column-gap> from [normal\] to [20px\] at (0) should be [normal\]]
-    expected: FAIL
-
   [Web Animations: property <column-gap> from [inherit\] to [20px\] at (1) should be [20px\]]
     expected: FAIL
 
-  [CSS Animations: property <column-gap> from [unset\] to [20px\] at (0.5) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <column-gap> from [unset\] to [20px\] at (1.5) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <column-gap> from [unset\] to [20px\] at (0) should be [unset\]]
     expected: FAIL
 
   [Web Animations: property <column-gap> from [unset\] to [20px\] at (1.5) should be [20px\]]
     expected: FAIL
 
-  [CSS Animations: property <column-gap> from [unset\] to [20px\] at (0.6) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <column-gap> from [normal\] to [20px\] at (0.3) should be [normal\]]
-    expected: FAIL
-
   [Web Animations: property <column-gap> from [unset\] to [20px\] at (0.6) should be [20px\]]
     expected: FAIL
 
-  [CSS Animations: property <column-gap> from [initial\] to [20px\] at (0.6) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <column-gap> from [unset\] to [20px\] at (0) should be [unset\]]
-    expected: FAIL
-
   [Web Animations: property <column-gap> from [normal\] to [20px\] at (1) should be [20px\]]
     expected: FAIL
 
   [Web Animations: property <column-gap> from [normal\] to [20px\] at (0.3) should be [normal\]]
     expected: FAIL
 
-  [CSS Animations: property <column-gap> from [initial\] to [20px\] at (0.5) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <column-gap> from [inherit\] to [20px\] at (0.3) should be [69px\]]
     expected: FAIL
 
@@ -179,9 +119,6 @@
   [Web Animations: property <column-gap> from [0px\] to [100px\] at (0) should be [0\]]
     expected: FAIL
 
-  [CSS Animations: property <column-gap> from [normal\] to [20px\] at (0.5) should be [20px\]]
-    expected: FAIL
-
   [CSS Transitions: property <column-gap> from [initial\] to [20px\] at (-0.3) should be [initial\]]
     expected: FAIL
 
@@ -208,57 +145,3 @@
 
   [CSS Transitions: property <column-gap> from [normal\] to [20px\] at (0.3) should be [normal\]]
     expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <column-gap> from [initial\] to [20px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <column-gap> from [initial\] to [20px\] at (0) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <column-gap> from [initial\] to [20px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <column-gap> from [initial\] to [20px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <column-gap> from [initial\] to [20px\] at (0) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <column-gap> from [initial\] to [20px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <column-gap> from [unset\] to [20px\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <column-gap> from [unset\] to [20px\] at (0) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <column-gap> from [unset\] to [20px\] at (0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <column-gap> from [unset\] to [20px\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <column-gap> from [unset\] to [20px\] at (0) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <column-gap> from [unset\] to [20px\] at (0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <column-gap> from [normal\] to [20px\] at (-0.3) should be [normal\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <column-gap> from [normal\] to [20px\] at (0) should be [normal\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <column-gap> from [normal\] to [20px\] at (0.3) should be [normal\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <column-gap> from [normal\] to [20px\] at (-0.3) should be [normal\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <column-gap> from [normal\] to [20px\] at (0) should be [normal\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <column-gap> from [normal\] to [20px\] at (0.3) should be [normal\]]
-    expected: FAIL
diff --git a/tests/wpt/meta-legacy-layout/css/css-align/animation/row-gap-interpolation.html.ini b/tests/wpt/meta-legacy-layout/css/css-align/animation/row-gap-interpolation.html.ini
index 687600eae30..d6035d607c0 100644
--- a/tests/wpt/meta-legacy-layout/css/css-align/animation/row-gap-interpolation.html.ini
+++ b/tests/wpt/meta-legacy-layout/css/css-align/animation/row-gap-interpolation.html.ini
@@ -2,18 +2,12 @@
   [row-gap interpolation]
     expected: FAIL
 
-  [CSS Animations: property <row-gap> from [initial\] to [20px\] at (0.6) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <row-gap> from [inherit\] to [20px\] at (1.5) should be [0px\]]
     expected: FAIL
 
   [Web Animations: property <row-gap> from neutral to [40px\] at (1) should be [40px\]]
     expected: FAIL
 
-  [CSS Animations: property <row-gap> from [initial\] to [20px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
   [Web Animations: property <row-gap> from [initial\] to [20px\] at (-0.3) should be [initial\]]
     expected: FAIL
 
@@ -29,30 +23,15 @@
   [Web Animations: property <row-gap> from [0px\] to [100px\] at (0.3) should be [30px\]]
     expected: FAIL
 
-  [CSS Animations: property <row-gap> from [initial\] to [20px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Animations: property <row-gap> from [initial\] to [20px\] at (1.5) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <row-gap> from [normal\] to [20px\] at (0.3) should be [normal\]]
-    expected: FAIL
-
   [Web Animations: property <row-gap> from [unset\] to [20px\] at (1) should be [20px\]]
     expected: FAIL
 
-  [CSS Animations: property <row-gap> from [initial\] to [20px\] at (0) should be [initial\]]
-    expected: FAIL
-
   [Web Animations: property <row-gap> from neutral to [40px\] at (1.5) should be [55px\]]
     expected: FAIL
 
   [Web Animations: property <row-gap> from [inherit\] to [20px\] at (1) should be [20px\]]
     expected: FAIL
 
-  [CSS Animations: property <row-gap> from [normal\] to [20px\] at (1) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <row-gap> from neutral to [40px\] at (0) should be [10px\]]
     expected: FAIL
 
@@ -65,36 +44,18 @@
   [Web Animations: property <row-gap> from neutral to [40px\] at (0.3) should be [19px\]]
     expected: FAIL
 
-  [CSS Animations: property <row-gap> from [normal\] to [20px\] at (0) should be [normal\]]
-    expected: FAIL
-
   [Web Animations: property <row-gap> from [unset\] to [20px\] at (0.5) should be [20px\]]
     expected: FAIL
 
   [Web Animations: property <row-gap> from [initial\] to [20px\] at (0.5) should be [20px\]]
     expected: FAIL
 
-  [CSS Animations: property <row-gap> from [initial\] to [20px\] at (0.5) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <row-gap> from [unset\] to [20px\] at (0.6) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <row-gap> from [inherit\] to [20px\] at (0) should be [90px\]]
     expected: FAIL
 
-  [CSS Animations: property <row-gap> from [unset\] to [20px\] at (0) should be [unset\]]
-    expected: FAIL
-
   [Web Animations: property <row-gap> from [unset\] to [20px\] at (0.3) should be [unset\]]
     expected: FAIL
 
-  [CSS Animations: property <row-gap> from [normal\] to [20px\] at (-0.3) should be [normal\]]
-    expected: FAIL
-
-  [CSS Animations: property <row-gap> from [unset\] to [20px\] at (1) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <row-gap> from [initial\] to [20px\] at (1.5) should be [20px\]]
     expected: FAIL
 
@@ -113,9 +74,6 @@
   [Web Animations: property <row-gap> from [0px\] to [100px\] at (0) should be [0\]]
     expected: FAIL
 
-  [CSS Animations: property <row-gap> from [normal\] to [20px\] at (1.5) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <row-gap> from [0px\] to [100px\] at (0.6) should be [60px\]]
     expected: FAIL
 
@@ -131,24 +89,12 @@
   [Web Animations: property <row-gap> from [initial\] to [20px\] at (0.6) should be [20px\]]
     expected: FAIL
 
-  [CSS Animations: property <row-gap> from [unset\] to [20px\] at (0.3) should be [unset\]]
-    expected: FAIL
-
   [Web Animations: property <row-gap> from [initial\] to [20px\] at (0.3) should be [initial\]]
     expected: FAIL
 
-  [CSS Animations: property <row-gap> from [unset\] to [20px\] at (0.5) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <row-gap> from neutral to [40px\] at (-0.3) should be [1px\]]
     expected: FAIL
 
-  [CSS Animations: property <row-gap> from [normal\] to [20px\] at (0.5) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <row-gap> from [unset\] to [20px\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
   [Web Animations: property <row-gap> from [normal\] to [20px\] at (0.3) should be [normal\]]
     expected: FAIL
 
@@ -161,21 +107,12 @@
   [Web Animations: property <row-gap> from [0px\] to [100px\] at (1) should be [100px\]]
     expected: FAIL
 
-  [CSS Animations: property <row-gap> from [unset\] to [20px\] at (1.5) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <row-gap> from [inherit\] to [20px\] at (-0.3) should be [111px\]]
     expected: FAIL
 
   [Web Animations: property <row-gap> from [unset\] to [20px\] at (0.6) should be [20px\]]
     expected: FAIL
 
-  [CSS Animations: property <row-gap> from [normal\] to [20px\] at (0.6) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <row-gap> from [initial\] to [20px\] at (1) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <row-gap> from [normal\] to [20px\] at (0.6) should be [20px\]]
     expected: FAIL
 
@@ -208,57 +145,3 @@
 
   [CSS Transitions: property <row-gap> from [normal\] to [20px\] at (0.3) should be [normal\]]
     expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <row-gap> from [initial\] to [20px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <row-gap> from [initial\] to [20px\] at (0) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <row-gap> from [initial\] to [20px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <row-gap> from [initial\] to [20px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <row-gap> from [initial\] to [20px\] at (0) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <row-gap> from [initial\] to [20px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <row-gap> from [unset\] to [20px\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <row-gap> from [unset\] to [20px\] at (0) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <row-gap> from [unset\] to [20px\] at (0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <row-gap> from [unset\] to [20px\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <row-gap> from [unset\] to [20px\] at (0) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <row-gap> from [unset\] to [20px\] at (0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <row-gap> from [normal\] to [20px\] at (-0.3) should be [normal\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <row-gap> from [normal\] to [20px\] at (0) should be [normal\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <row-gap> from [normal\] to [20px\] at (0.3) should be [normal\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <row-gap> from [normal\] to [20px\] at (-0.3) should be [normal\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <row-gap> from [normal\] to [20px\] at (0) should be [normal\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <row-gap> from [normal\] to [20px\] at (0.3) should be [normal\]]
-    expected: FAIL
diff --git a/tests/wpt/meta-legacy-layout/css/css-align/gaps/column-gap-animation-002.html.ini b/tests/wpt/meta-legacy-layout/css/css-align/gaps/column-gap-animation-002.html.ini
deleted file mode 100644
index afee5b0030c..00000000000
--- a/tests/wpt/meta-legacy-layout/css/css-align/gaps/column-gap-animation-002.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[column-gap-animation-002.html]
-  [column-gap: normal is not interpolable]
-    expected: FAIL
-
diff --git a/tests/wpt/meta-legacy-layout/css/css-align/gaps/column-gap-animation-003.html.ini b/tests/wpt/meta-legacy-layout/css/css-align/gaps/column-gap-animation-003.html.ini
deleted file mode 100644
index 2b5e8e646aa..00000000000
--- a/tests/wpt/meta-legacy-layout/css/css-align/gaps/column-gap-animation-003.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[column-gap-animation-003.html]
-  [Default column-gap is not interpolable]
-    expected: FAIL
-
diff --git a/tests/wpt/meta-legacy-layout/css/css-align/gaps/gap-animation-002.html.ini b/tests/wpt/meta-legacy-layout/css/css-align/gaps/gap-animation-002.html.ini
deleted file mode 100644
index 0d69d1ec367..00000000000
--- a/tests/wpt/meta-legacy-layout/css/css-align/gaps/gap-animation-002.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[gap-animation-002.html]
-  [gap: normal is not interpolable]
-    expected: FAIL
-
diff --git a/tests/wpt/meta-legacy-layout/css/css-align/gaps/gap-animation-003.html.ini b/tests/wpt/meta-legacy-layout/css/css-align/gaps/gap-animation-003.html.ini
deleted file mode 100644
index 9fa25dc683d..00000000000
--- a/tests/wpt/meta-legacy-layout/css/css-align/gaps/gap-animation-003.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[gap-animation-003.html]
-  [Default gap is not interpolable]
-    expected: FAIL
-
diff --git a/tests/wpt/meta-legacy-layout/css/css-align/gaps/row-gap-animation-002.html.ini b/tests/wpt/meta-legacy-layout/css/css-align/gaps/row-gap-animation-002.html.ini
deleted file mode 100644
index ba1bcddaf71..00000000000
--- a/tests/wpt/meta-legacy-layout/css/css-align/gaps/row-gap-animation-002.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[row-gap-animation-002.html]
-  [row-gap: normal is not interpolable]
-    expected: FAIL
-
diff --git a/tests/wpt/meta-legacy-layout/css/css-align/gaps/row-gap-animation-003.html.ini b/tests/wpt/meta-legacy-layout/css/css-align/gaps/row-gap-animation-003.html.ini
deleted file mode 100644
index 88a6bcf7e25..00000000000
--- a/tests/wpt/meta-legacy-layout/css/css-align/gaps/row-gap-animation-003.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[row-gap-animation-003.html]
-  [Default row-gap is not interpolable]
-    expected: FAIL
-
diff --git a/tests/wpt/meta-legacy-layout/css/css-backgrounds/animations/background-size-interpolation.html.ini b/tests/wpt/meta-legacy-layout/css/css-backgrounds/animations/background-size-interpolation.html.ini
index 7dead542f53..e863d378d72 100644
--- a/tests/wpt/meta-legacy-layout/css/css-backgrounds/animations/background-size-interpolation.html.ini
+++ b/tests/wpt/meta-legacy-layout/css/css-backgrounds/animations/background-size-interpolation.html.ini
@@ -29,36 +29,24 @@
   [CSS Animations: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (0) should be [100px 100px, 100px 100px, 100px 100px, 100px 100px\]]
     expected: FAIL
 
-  [CSS Animations: property <background-size> from [initial\] to [20px 20px, 0px 0px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
   [Web Animations: property <background-size> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [20px 20px, 40px 40px, 60px 60px, 100px 100px\] at (1.25) should be [25px 25px, 50px 50px, 75px 75px, 125px 125px\]]
     expected: FAIL
 
   [Web Animations: property <background-size> from [0px\] to [80px\] at (0.25) should be [ 20px,  20px,  20px,  20px\]]
     expected: FAIL
 
-  [CSS Animations: property <background-size> from [0px auto, 0px 0px\] to [auto 40px, 40px 40px\] at (0.5) should be [auto 40px, 40px 40px\]]
-    expected: FAIL
-
   [Web Animations: property <background-size> from neutral to [20px 20px, 0px 0px\] at (-0.25) should be [ 7.5px  7.5px, 12.5px 12.5px,  7.5px  7.5px, 12.5px 12.5px\]]
     expected: FAIL
 
   [Web Animations: property <background-size> from [0px auto, 0px 0px\] to [auto 40px, 40px 40px\] at (1.5) should be [auto 40px, 40px 40px\]]
     expected: FAIL
 
-  [CSS Animations: property <background-size> from [0px auto, 0px 0px\] to [auto 40px, 40px 40px\] at (0) should be [0px auto, 0px 0px\]]
-    expected: FAIL
-
   [CSS Transitions: property <background-size> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (0.5) should be [20px 20px, 80px  40px, 0px  40px, 60px 20px\]]
     expected: FAIL
 
   [CSS Transitions with transition: all: property <background-size> from [0px\] to [80px\] at (1.25) should be [100px, 100px, 100px, 100px\]]
     expected: FAIL
 
-  [CSS Animations: property <background-size> from [0px 0px, 0px 0px, contain, cover\] to [40px 40px, 40px 40px, cover, contain\] at (0.5) should be [40px 40px, 40px 40px, cover, contain\]]
-    expected: FAIL
-
   [Web Animations: property <background-size> from [0px 0px, 0px 0px, contain, cover\] to [40px 40px, 40px 40px, cover, contain\] at (0.5) should be [40px 40px, 40px 40px, cover, contain\]]
     expected: FAIL
 
@@ -119,18 +107,12 @@
   [CSS Transitions with transition: all: property <background-size> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (-0.25) should be [ 0px  0px, 80px   0px, 0px   0px, 90px  0px\]]
     expected: FAIL
 
-  [CSS Animations: property <background-size> from [0px 0px, 0px 0px, contain, cover\] to [40px 40px, 40px 40px, cover, contain\] at (0.6) should be [40px 40px, 40px 40px, cover, contain\]]
-    expected: FAIL
-
   [CSS Transitions with transition: all: property <background-size> from neutral to [20px 20px, 0px 0px\] at (1.25) should be [22.5px 22.5px,  0.0px  0.0px, 22.5px 22.5px,  0.0px  0.0px\]]
     expected: FAIL
 
   [Web Animations: property <background-size> from [0px\] to [80px\] at (-0.25) should be [  0px,   0px,   0px,   0px\]]
     expected: FAIL
 
-  [CSS Animations: property <background-size> from [unset\] to [20px 20px, 0px 0px\] at (0.5) should be [20px 20px, 0px 0px\]]
-    expected: FAIL
-
   [Web Animations: property <background-size> from [0px\] to [80px\] at (0.75) should be [ 60px,  60px,  60px,  60px\]]
     expected: FAIL
 
@@ -164,21 +146,12 @@
   [CSS Animations: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (-0.25) should be [120px 120px, 125px 125px, 120px 120px, 125px 125px\]]
     expected: FAIL
 
-  [CSS Animations: property <background-size> from [initial\] to [20px 20px, 0px 0px\] at (0.6) should be [20px 20px, 0px 0px\]]
-    expected: FAIL
-
-  [CSS Animations: property <background-size> from [unset\] to [20px 20px, 0px 0px\] at (0.3) should be [unset\]]
-    expected: FAIL
-
   [Web Animations: property <background-size> from [0px auto, 0px 0px\] to [auto 40px, 40px 40px\] at (-0.3) should be [0px auto, 0px 0px\]]
     expected: FAIL
 
   [CSS Transitions: property <background-size> from neutral to [20px 20px, 0px 0px\] at (-0.25) should be [ 7.5px  7.5px, 12.5px 12.5px,  7.5px  7.5px, 12.5px 12.5px\]]
     expected: FAIL
 
-  [CSS Animations: property <background-size> from [0px auto, 0px 0px, contain, cover\] to [40px auto, 40px 40px, contain, cover\] at (0) should be [ 0px auto,  0px  0px, contain, cover\]]
-    expected: FAIL
-
   [CSS Transitions with transition: all: property <background-size> from [0px auto, 0px 0px, contain, cover\] to [40px auto, 40px 40px, contain, cover\] at (1.25) should be [50px auto, 50px 50px, contain, cover\]]
     expected: FAIL
 
@@ -197,9 +170,6 @@
   [CSS Transitions: property <background-size> from [0px\] to [80px\] at (-0.25) should be [  0px,   0px,   0px,   0px\]]
     expected: FAIL
 
-  [CSS Animations: property <background-size> from [unset\] to [20px 20px, 0px 0px\] at (1.5) should be [20px 20px, 0px 0px\]]
-    expected: FAIL
-
   [CSS Transitions with transition: all: property <background-size> from neutral to [20px 20px, 0px 0px\] at (0.75) should be [17.5px 17.5px,  2.5px  2.5px, 17.5px 17.5px,  2.5px  2.5px\]]
     expected: FAIL
 
@@ -257,9 +227,6 @@
   [CSS Transitions: property <background-size> from [0px 0px\] to [80px 80px\] at (0.75) should be [ 60px  60px,  60px  60px,  60px  60px,  60px  60px\]]
     expected: FAIL
 
-  [CSS Animations: property <background-size> from [0px 0px, 0px 0px, contain, cover\] to [40px 40px, 40px 40px, cover, contain\] at (0) should be [0px 0px, 0px 0px, contain, cover\]]
-    expected: FAIL
-
   [CSS Transitions with transition: all: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (0.5) should be [ 60px  60px,  50px  50px,  60px  60px,  50px  50px\]]
     expected: FAIL
 
@@ -296,21 +263,12 @@
   [CSS Animations: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (0.75) should be [ 40px  40px,  25px  25px,  40px  40px,  25px  25px\]]
     expected: FAIL
 
-  [CSS Animations: property <background-size> from [0px auto, 0px 0px\] to [auto 40px, 40px 40px\] at (-0.3) should be [0px auto, 0px 0px\]]
-    expected: FAIL
-
   [CSS Transitions: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (0) should be [100px 100px, 100px 100px, 100px 100px, 100px 100px\]]
     expected: FAIL
 
-  [CSS Animations: property <background-size> from [initial\] to [20px 20px, 0px 0px\] at (1.5) should be [20px 20px, 0px 0px\]]
-    expected: FAIL
-
   [Web Animations: property <background-size> from [initial\] to [20px 20px, 0px 0px\] at (0.3) should be [initial\]]
     expected: FAIL
 
-  [CSS Animations: property <background-size> from [0px auto, 0px 0px\] to [auto 40px, 40px 40px\] at (0.6) should be [auto 40px, 40px 40px\]]
-    expected: FAIL
-
   [CSS Transitions with transition: all: property <background-size> from [0px 0px\] to [80px 80px\] at (0.75) should be [ 60px  60px,  60px  60px,  60px  60px,  60px  60px\]]
     expected: FAIL
 
@@ -323,15 +281,9 @@
   [CSS Transitions with transition: all: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (1.25) should be [  0px   0px,   0px   0px,   0px   0px,   0px   0px\]]
     expected: FAIL
 
-  [CSS Animations: property <background-size> from [0px auto, 0px 0px\] to [auto 40px, 40px 40px\] at (1) should be [auto 40px, 40px 40px\]]
-    expected: FAIL
-
   [Web Animations: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (0.25) should be [ 80px  80px,  75px  75px,  80px  80px,  75px  75px\]]
     expected: FAIL
 
-  [CSS Animations: property <background-size> from [initial\] to [20px 20px, 0px 0px\] at (1) should be [20px 20px, 0px 0px\]]
-    expected: FAIL
-
   [Web Animations: property <background-size> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (0) should be [ 0px  0px, 80px   0px, 0px   0px, 80px  0px\]]
     expected: FAIL
 
@@ -386,18 +338,12 @@
   [CSS Transitions: property <background-size> from neutral to [20px 20px, 0px 0px\] at (1.25) should be [22.5px 22.5px,  0.0px  0.0px, 22.5px 22.5px,  0.0px  0.0px\]]
     expected: FAIL
 
-  [CSS Animations: property <background-size> from [0px auto, 0px 0px\] to [auto 40px, 40px 40px\] at (0.3) should be [0px auto, 0px 0px\]]
-    expected: FAIL
-
   [Web Animations: property <background-size> from [unset\] to [20px 20px, 0px 0px\] at (0.3) should be [unset\]]
     expected: FAIL
 
   [CSS Animations: property <background-size> from neutral to [20px 20px, 0px 0px\] at (1.25) should be [22.5px 22.5px,  0.0px  0.0px, 22.5px 22.5px,  0.0px  0.0px\]]
     expected: FAIL
 
-  [CSS Animations: property <background-size> from [0px 0px, 0px 0px, contain, cover\] to [40px 40px, 40px 40px, cover, contain\] at (-0.3) should be [0px 0px, 0px 0px, contain, cover\]]
-    expected: FAIL
-
   [Web Animations: property <background-size> from neutral to [20px 20px, 0px 0px\] at (0.25) should be [12.5px 12.5px,  7.5px  7.5px, 12.5px 12.5px,  7.5px  7.5px\]]
     expected: FAIL
 
@@ -407,9 +353,6 @@
   [CSS Transitions: property <background-size> from [0px 0px\] to [80px 80px\] at (1.25) should be [100px 100px, 100px 100px, 100px 100px, 100px 100px\]]
     expected: FAIL
 
-  [CSS Animations: property <background-size> from [0px auto, 0px 0px, contain, cover\] to [40px auto, 40px 40px, contain, cover\] at (-0.25) should be [ 0px auto,  0px  0px, contain, cover\]]
-    expected: FAIL
-
   [Web Animations: property <background-size> from [0px\] to [80px\] at (1.25) should be [100px, 100px, 100px, 100px\]]
     expected: FAIL
 
@@ -443,9 +386,6 @@
   [Web Animations: property <background-size> from [0px 0px\] to [80px 80px\] at (1.25) should be [100px 100px, 100px 100px, 100px 100px, 100px 100px\]]
     expected: FAIL
 
-  [CSS Animations: property <background-size> from [unset\] to [20px 20px, 0px 0px\] at (0.6) should be [20px 20px, 0px 0px\]]
-    expected: FAIL
-
   [CSS Transitions: property <background-size> from [0px auto, 0px 0px, contain, cover\] to [40px auto, 40px 40px, contain, cover\] at (0.5) should be [20px auto, 20px 20px, contain, cover\]]
     expected: FAIL
 
@@ -470,9 +410,6 @@
   [CSS Transitions: property <background-size> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (1.25) should be [50px 50px, 80px 100px, 0px 100px, 30px 50px\]]
     expected: FAIL
 
-  [CSS Animations: property <background-size> from [0px auto, 0px 0px, contain, cover\] to [40px auto, 40px 40px, contain, cover\] at (1) should be [40px auto, 40px 40px, contain, cover\]]
-    expected: FAIL
-
   [Web Animations: property <background-size> from [0px 0px, 0px 0px, contain, cover\] to [40px 40px, 40px 40px, cover, contain\] at (1) should be [40px 40px, 40px 40px, cover, contain\]]
     expected: FAIL
 
@@ -488,12 +425,6 @@
   [Web Animations: property <background-size> from [0px 0px, 0px 0px, contain, cover\] to [40px 40px, 40px 40px, cover, contain\] at (0) should be [0px 0px, 0px 0px, contain, cover\]]
     expected: FAIL
 
-  [CSS Animations: property <background-size> from [0px 0px, 0px 0px, contain, cover\] to [40px 40px, 40px 40px, cover, contain\] at (0.3) should be [0px 0px, 0px 0px, contain, cover\]]
-    expected: FAIL
-
-  [CSS Animations: property <background-size> from [unset\] to [20px 20px, 0px 0px\] at (0) should be [unset\]]
-    expected: FAIL
-
   [Web Animations: property <background-size> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (1) should be [40px 40px, 80px  80px, 0px  80px, 40px 40px\]]
     expected: FAIL
 
@@ -518,15 +449,9 @@
   [CSS Animations: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (0.5) should be [ 60px  60px,  50px  50px,  60px  60px,  50px  50px\]]
     expected: FAIL
 
-  [CSS Animations: property <background-size> from [0px 0px, 0px 0px, contain, cover\] to [40px 40px, 40px 40px, cover, contain\] at (1.5) should be [40px 40px, 40px 40px, cover, contain\]]
-    expected: FAIL
-
   [CSS Transitions: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (-0.25) should be [120px 120px, 125px 125px, 120px 120px, 125px 125px\]]
     expected: FAIL
 
-  [CSS Animations: property <background-size> from [unset\] to [20px 20px, 0px 0px\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
   [CSS Transitions with transition: all: property <background-size> from [0px\] to [80px\] at (-0.25) should be [  0px,   0px,   0px,   0px\]]
     expected: FAIL
 
@@ -560,9 +485,6 @@
   [Web Animations: property <background-size> from [unset\] to [20px 20px, 0px 0px\] at (1) should be [20px 20px, 0px 0px\]]
     expected: FAIL
 
-  [CSS Animations: property <background-size> from [0px auto, 0px 0px\] to [auto 40px, 40px 40px\] at (1.5) should be [auto 40px, 40px 40px\]]
-    expected: FAIL
-
   [CSS Animations: property <background-size> from [0px\] to [80px\] at (0.75) should be [ 60px,  60px,  60px,  60px\]]
     expected: FAIL
 
@@ -581,12 +503,6 @@
   [Web Animations: property <background-size> from [0px 0px\] to [80px 80px\] at (0.5) should be [ 40px  40px,  40px  40px,  40px  40px,  40px  40px\]]
     expected: FAIL
 
-  [CSS Animations: property <background-size> from [unset\] to [20px 20px, 0px 0px\] at (1) should be [20px 20px, 0px 0px\]]
-    expected: FAIL
-
-  [CSS Animations: property <background-size> from [initial\] to [20px 20px, 0px 0px\] at (0.5) should be [20px 20px, 0px 0px\]]
-    expected: FAIL
-
   [CSS Transitions: property <background-size> from [0px\] to [80px\] at (0.25) should be [ 20px,  20px,  20px,  20px\]]
     expected: FAIL
 
@@ -599,9 +515,6 @@
   [CSS Transitions: property <background-size> from [0px 0px\] to [80px 80px\] at (0) should be [  0px   0px,   0px   0px,   0px   0px,   0px   0px\]]
     expected: FAIL
 
-  [CSS Animations: property <background-size> from [0px 0px, 0px 0px, contain, cover\] to [40px 40px, 40px 40px, cover, contain\] at (1) should be [40px 40px, 40px 40px, cover, contain\]]
-    expected: FAIL
-
   [CSS Transitions: property <background-size> from [0px 0px\] to [80px 80px\] at (1) should be [ 80px  80px,  80px  80px,  80px  80px,  80px  80px\]]
     expected: FAIL
 
@@ -656,12 +569,6 @@
   [CSS Transitions with transition: all: property <background-size> from [0px auto, 0px 0px, contain, cover\] to [40px auto, 40px 40px, contain, cover\] at (0.5) should be [20px auto, 20px 20px, contain, cover\]]
     expected: FAIL
 
-  [CSS Animations: property <background-size> from [initial\] to [20px 20px, 0px 0px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Animations: property <background-size> from [initial\] to [20px 20px, 0px 0px\] at (0) should be [initial\]]
-    expected: FAIL
-
   [CSS Animations: property <background-size> from [0px 0px\] to [80px 80px\] at (1.25) should be [100px 100px, 100px 100px, 100px 100px, 100px 100px\]]
     expected: FAIL
 
@@ -724,75 +631,3 @@
 
   [CSS Transitions: property <background-size> from [0px auto, 0px 0px\] to [auto 40px, 40px 40px\] at (0.3) should be [0px auto, 0px 0px\]]
     expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <background-size> from [initial\] to [20px 20px, 0px 0px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <background-size> from [initial\] to [20px 20px, 0px 0px\] at (0) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <background-size> from [initial\] to [20px 20px, 0px 0px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <background-size> from [initial\] to [20px 20px, 0px 0px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <background-size> from [initial\] to [20px 20px, 0px 0px\] at (0) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <background-size> from [initial\] to [20px 20px, 0px 0px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <background-size> from [unset\] to [20px 20px, 0px 0px\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <background-size> from [unset\] to [20px 20px, 0px 0px\] at (0) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <background-size> from [unset\] to [20px 20px, 0px 0px\] at (0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <background-size> from [unset\] to [20px 20px, 0px 0px\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <background-size> from [unset\] to [20px 20px, 0px 0px\] at (0) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <background-size> from [unset\] to [20px 20px, 0px 0px\] at (0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <background-size> from [0px 0px, 0px 0px, contain, cover\] to [40px 40px, 40px 40px, cover, contain\] at (-0.3) should be [0px 0px, 0px 0px, contain, cover\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <background-size> from [0px 0px, 0px 0px, contain, cover\] to [40px 40px, 40px 40px, cover, contain\] at (0) should be [0px 0px, 0px 0px, contain, cover\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <background-size> from [0px 0px, 0px 0px, contain, cover\] to [40px 40px, 40px 40px, cover, contain\] at (0.3) should be [0px 0px, 0px 0px, contain, cover\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <background-size> from [0px 0px, 0px 0px, contain, cover\] to [40px 40px, 40px 40px, cover, contain\] at (-0.3) should be [0px 0px, 0px 0px, contain, cover\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <background-size> from [0px 0px, 0px 0px, contain, cover\] to [40px 40px, 40px 40px, cover, contain\] at (0) should be [0px 0px, 0px 0px, contain, cover\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <background-size> from [0px 0px, 0px 0px, contain, cover\] to [40px 40px, 40px 40px, cover, contain\] at (0.3) should be [0px 0px, 0px 0px, contain, cover\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <background-size> from [0px auto, 0px 0px\] to [auto 40px, 40px 40px\] at (-0.3) should be [0px auto, 0px 0px\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <background-size> from [0px auto, 0px 0px\] to [auto 40px, 40px 40px\] at (0) should be [0px auto, 0px 0px\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <background-size> from [0px auto, 0px 0px\] to [auto 40px, 40px 40px\] at (0.3) should be [0px auto, 0px 0px\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <background-size> from [0px auto, 0px 0px\] to [auto 40px, 40px 40px\] at (-0.3) should be [0px auto, 0px 0px\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <background-size> from [0px auto, 0px 0px\] to [auto 40px, 40px 40px\] at (0) should be [0px auto, 0px 0px\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <background-size> from [0px auto, 0px 0px\] to [auto 40px, 40px 40px\] at (0.3) should be [0px auto, 0px 0px\]]
-    expected: FAIL
diff --git a/tests/wpt/meta-legacy-layout/css/css-backgrounds/animations/border-image-slice-interpolation.html.ini b/tests/wpt/meta-legacy-layout/css/css-backgrounds/animations/border-image-slice-interpolation.html.ini
index a673e6ae3b3..fb1ad63d319 100644
--- a/tests/wpt/meta-legacy-layout/css/css-backgrounds/animations/border-image-slice-interpolation.html.ini
+++ b/tests/wpt/meta-legacy-layout/css/css-backgrounds/animations/border-image-slice-interpolation.html.ini
@@ -2,15 +2,9 @@
   [border-image-slice interpolation]
     expected: FAIL
 
-  [CSS Animations: property <border-image-slice> from [50%\] to [100\] at (1.5) should be [100\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-slice> from [0% 10% 20% 30%\] to [40% 50% 60% 70%\] at (1) should be [40% 50% 60% 70%\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-slice> from [0% fill\] to [50%\] at (1) should be [50%\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70\] at (0.6) should be [40% 50 60% 70\]]
     expected: FAIL
 
@@ -29,45 +23,21 @@
   [Web Animations: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (0.5) should be [20 30 40 50 fill\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-slice> from [0% 10 20 30 fill\] to [40 50 60% 70\] at (0.5) should be [40 50 60% 70\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-slice> from [0%\] to [50%\] at (0.6) should be [30%\]]
     expected: FAIL
 
   [Web Animations: property <border-image-slice> from [0% 10 20 30 fill\] to [40 50 60% 70\] at (0.6) should be [40 50 60% 70\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-slice> from [50% fill\] to [100 fill\] at (0.6) should be [100 fill\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-slice> from neutral to [10%\] at (1.5) should be [5%\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-slice> from [50%\] to [100\] at (0.3) should be [50%\]]
-    expected: FAIL
-
-  [CSS Animations: property <border-image-slice> from [50%\] to [100\] at (0.5) should be [100\]]
-    expected: FAIL
-
-  [CSS Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70\] at (0.6) should be [40% 50 60% 70\]]
-    expected: FAIL
-
-  [CSS Animations: property <border-image-slice> from [0% 10 20 30 fill\] to [40 50 60% 70\] at (1.5) should be [40 50 60% 70\]]
-    expected: FAIL
-
-  [CSS Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70\] at (-0.3) should be [0% 10 20% 30 fill\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-slice> from [initial\] to [10%\] at (1) should be [10%\]]
     expected: FAIL
 
   [Web Animations: property <border-image-slice> from neutral to [10%\] at (0.6) should be [14%\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-slice> from [0% fill\] to [50%\] at (1.5) should be [50%\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-slice> from [50% fill\] to [100 fill\] at (0.5) should be [100 fill\]]
     expected: FAIL
 
@@ -83,24 +53,15 @@
   [Web Animations: property <border-image-slice> from [0% 10 20 30 fill\] to [40 50 60% 70\] at (1) should be [40 50 60% 70\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-slice> from [0% fill\] to [50%\] at (0.3) should be [0% fill\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70\] at (0.3) should be [0% 10 20% 30 fill\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-slice> from [50% fill\] to [100 fill\] at (1.5) should be [100 fill\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-slice> from [inherit\] to [10%\] at (1) should be [10%\]]
     expected: FAIL
 
   [Web Animations: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (0) should be [0 10 20 30 fill\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-slice> from [0% fill\] to [50%\] at (-0.3) should be [0% fill\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-slice> from [unset\] to [10%\] at (0.3) should be [73%\]]
     expected: FAIL
 
@@ -110,15 +71,9 @@
   [Web Animations: property <border-image-slice> from [0%\] to [50%\] at (1.5) should be [75%\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70\] at (1.5) should be [40% 50 60% 70\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-slice> from [0% fill\] to [50%\] at (1) should be [50%\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-slice> from [50%\] to [100\] at (0.6) should be [100\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-slice> from [50%\] to [100\] at (0) should be [50%\]]
     expected: FAIL
 
@@ -131,9 +86,6 @@
   [Web Animations: property <border-image-slice> from neutral to [10%\] at (0.5) should be [15%\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70\] at (1) should be [40% 50 60% 70\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-slice> from [0%\] to [50%\] at (0.5) should be [25%\]]
     expected: FAIL
 
@@ -161,18 +113,9 @@
   [Web Animations: property <border-image-slice> from [50%\] to [100\] at (-0.3) should be [50%\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-slice> from [0% 10 20 30 fill\] to [40 50 60% 70\] at (0.3) should be [0% 10 20 30 fill\]]
-    expected: FAIL
-
-  [CSS Animations: property <border-image-slice> from [50% fill\] to [100 fill\] at (-0.3) should be [50% fill\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-slice> from [0% 10 20 30 fill\] to [40 50 60% 70\] at (0) should be [0% 10 20 30 fill\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-slice> from [0% 10 20 30 fill\] to [40 50 60% 70\] at (1) should be [40 50 60% 70\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-slice> from [50%\] to [100\] at (0.5) should be [100\]]
     expected: FAIL
 
@@ -197,27 +140,15 @@
   [Web Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (1.5) should be [60% 70 80% 90 fill\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-slice> from [50% fill\] to [100 fill\] at (0.3) should be [50% fill\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70\] at (1) should be [40% 50 60% 70\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-slice> from [50%\] to [100\] at (1) should be [100\]]
-    expected: FAIL
-
-  [CSS Animations: property <border-image-slice> from [50% fill\] to [100 fill\] at (0) should be [50% fill\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-slice> from [50% fill\] to [100 fill\] at (0.3) should be [50% fill\]]
     expected: FAIL
 
   [Web Animations: property <border-image-slice> from [inherit\] to [10%\] at (0.6) should be [26%\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70\] at (0) should be [0% 10 20% 30 fill\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-slice> from [initial\] to [10%\] at (0.3) should be [73%\]]
     expected: FAIL
 
@@ -227,18 +158,9 @@
   [Web Animations: property <border-image-slice> from neutral to [10%\] at (1) should be [10%\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-slice> from [50% fill\] to [100 fill\] at (1) should be [100 fill\]]
-    expected: FAIL
-
-  [CSS Animations: property <border-image-slice> from [0% 10 20 30 fill\] to [40 50 60% 70\] at (-0.3) should be [0% 10 20 30 fill\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-slice> from [unset\] to [10%\] at (1.5) should be [0%\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-slice> from [0% 10 20 30 fill\] to [40 50 60% 70\] at (0.6) should be [40 50 60% 70\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-slice> from [inherit\] to [10%\] at (1.5) should be [0%\]]
     expected: FAIL
 
@@ -260,9 +182,6 @@
   [Web Animations: property <border-image-slice> from [0% fill\] to [50%\] at (-0.3) should be [0% fill\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-slice> from [0% 10 20 30 fill\] to [40 50 60% 70\] at (0) should be [0% 10 20 30 fill\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (-0.5) should be [0% 0 0% 10 fill\]]
     expected: FAIL
 
@@ -284,9 +203,6 @@
   [Web Animations: property <border-image-slice> from [0% fill\] to [50%\] at (0) should be [0% fill\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-slice> from [0% fill\] to [50%\] at (0) should be [0% fill\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-slice> from [unset\] to [10%\] at (0.6) should be [46%\]]
     expected: FAIL
 
@@ -296,12 +212,6 @@
   [Web Animations: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (1) should be [40 50 60 70 fill\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70\] at (0.5) should be [40% 50 60% 70\]]
-    expected: FAIL
-
-  [CSS Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70\] at (0.3) should be [0% 10 20% 30 fill\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (0.5) should be [20% 30 40% 50 fill\]]
     expected: FAIL
 
@@ -317,12 +227,6 @@
   [Web Animations: property <border-image-slice> from [0%\] to [50%\] at (1) should be [50%\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-slice> from [50% fill\] to [100 fill\] at (0.5) should be [100 fill\]]
-    expected: FAIL
-
-  [CSS Animations: property <border-image-slice> from [0% fill\] to [50%\] at (0.5) should be [50%\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (-0.5) should be [0 0 0 10 fill\]]
     expected: FAIL
 
@@ -341,12 +245,6 @@
   [Web Animations: property <border-image-slice> from [50%\] to [100\] at (1.5) should be [100\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-slice> from [50%\] to [100\] at (-0.3) should be [50%\]]
-    expected: FAIL
-
-  [CSS Animations: property <border-image-slice> from [50%\] to [100\] at (0) should be [50%\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-slice> from [50% fill\] to [100 fill\] at (0.6) should be [100 fill\]]
     expected: FAIL
 
@@ -377,9 +275,6 @@
   [Web Animations: property <border-image-slice> from [0%\] to [50%\] at (-0.3) should be [0%\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-slice> from [0% fill\] to [50%\] at (0.6) should be [50%\]]
-    expected: FAIL
-
   [CSS Transitions: property <border-image-slice> from [0% fill\] to [50%\] at (-0.3) should be [0% fill\]]
     expected: FAIL
 
@@ -424,93 +319,3 @@
 
   [CSS Transitions: property <border-image-slice> from [0% 10 20 30 fill\] to [40 50 60% 70\] at (0.3) should be [0% 10 20 30 fill\]]
     expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <border-image-slice> from [0% fill\] to [50%\] at (-0.3) should be [0% fill\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <border-image-slice> from [0% fill\] to [50%\] at (0) should be [0% fill\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <border-image-slice> from [0% fill\] to [50%\] at (0.3) should be [0% fill\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <border-image-slice> from [0% fill\] to [50%\] at (-0.3) should be [0% fill\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <border-image-slice> from [0% fill\] to [50%\] at (0) should be [0% fill\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <border-image-slice> from [0% fill\] to [50%\] at (0.3) should be [0% fill\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <border-image-slice> from [50%\] to [100\] at (-0.3) should be [50%\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <border-image-slice> from [50%\] to [100\] at (0) should be [50%\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <border-image-slice> from [50%\] to [100\] at (0.3) should be [50%\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <border-image-slice> from [50%\] to [100\] at (-0.3) should be [50%\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <border-image-slice> from [50%\] to [100\] at (0) should be [50%\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <border-image-slice> from [50%\] to [100\] at (0.3) should be [50%\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <border-image-slice> from [50% fill\] to [100 fill\] at (-0.3) should be [50% fill\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <border-image-slice> from [50% fill\] to [100 fill\] at (0) should be [50% fill\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <border-image-slice> from [50% fill\] to [100 fill\] at (0.3) should be [50% fill\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <border-image-slice> from [50% fill\] to [100 fill\] at (-0.3) should be [50% fill\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <border-image-slice> from [50% fill\] to [100 fill\] at (0) should be [50% fill\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <border-image-slice> from [50% fill\] to [100 fill\] at (0.3) should be [50% fill\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70\] at (-0.3) should be [0% 10 20% 30 fill\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70\] at (0) should be [0% 10 20% 30 fill\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70\] at (0.3) should be [0% 10 20% 30 fill\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70\] at (-0.3) should be [0% 10 20% 30 fill\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70\] at (0) should be [0% 10 20% 30 fill\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70\] at (0.3) should be [0% 10 20% 30 fill\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <border-image-slice> from [0% 10 20 30 fill\] to [40 50 60% 70\] at (-0.3) should be [0% 10 20 30 fill\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <border-image-slice> from [0% 10 20 30 fill\] to [40 50 60% 70\] at (0) should be [0% 10 20 30 fill\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <border-image-slice> from [0% 10 20 30 fill\] to [40 50 60% 70\] at (0.3) should be [0% 10 20 30 fill\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <border-image-slice> from [0% 10 20 30 fill\] to [40 50 60% 70\] at (-0.3) should be [0% 10 20 30 fill\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <border-image-slice> from [0% 10 20 30 fill\] to [40 50 60% 70\] at (0) should be [0% 10 20 30 fill\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <border-image-slice> from [0% 10 20 30 fill\] to [40 50 60% 70\] at (0.3) should be [0% 10 20 30 fill\]]
-    expected: FAIL
diff --git a/tests/wpt/meta-legacy-layout/css/css-backgrounds/animations/border-image-width-interpolation.html.ini b/tests/wpt/meta-legacy-layout/css/css-backgrounds/animations/border-image-width-interpolation.html.ini
index 44d959fd9bd..723ac84ecbc 100644
--- a/tests/wpt/meta-legacy-layout/css/css-backgrounds/animations/border-image-width-interpolation.html.ini
+++ b/tests/wpt/meta-legacy-layout/css/css-backgrounds/animations/border-image-width-interpolation.html.ini
@@ -8,12 +8,6 @@
   [Web Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto 120 auto\] at (0) should be [10px auto auto 20\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto 120 auto\] at (1.5) should be [110px auto 120 auto\]]
-    expected: FAIL
-
-  [CSS Animations: property <border-image-width> from [10\] to [20%\] at (1) should be [20%\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-width> from [unset\] to [20px\] at (0.6) should be [20px\]]
     expected: FAIL
 
@@ -26,15 +20,6 @@
   [Web Animations: property <border-image-width> from [initial\] to [20px\] at (0.3) should be [initial\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-width> from [10px\] to [20\] at (0.6) should be [20\]]
-    expected: FAIL
-
-  [CSS Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto 120 auto\] at (0.5) should be [110px auto 120 auto\]]
-    expected: FAIL
-
-  [CSS Animations: property <border-image-width> from [10%\] to [20\] at (0.5) should be [20\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-width> from [10px\] to [20%\] at (0.3) should be [calc(7px + 6%)\]]
     expected: FAIL
 
@@ -62,15 +47,9 @@
   [Web Animations: property <border-image-width> from [10\] to [20px\] at (1) should be [20px\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto 120 auto\] at (0) should be [10px auto auto 20\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-width> from [10\] to [20%\] at (1.5) should be [20%\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-width> from [10px\] to [20\] at (1.5) should be [20\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-width> from [10%\] to [20px\] at (0) should be [10%\]]
     expected: FAIL
 
@@ -80,9 +59,6 @@
   [Web Animations: property <border-image-width> from [0px\] to [20px\] at (10) should be [200px\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-width> from [10\] to [20%\] at (1.5) should be [20%\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-width> from neutral to [20px\] at (0) should be [10px\]]
     expected: FAIL
 
@@ -95,18 +71,12 @@
   [Web Animations: property <border-image-width> from [10px\] to [20\] at (0.5) should be [20\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-width> from [initial\] to [20px\] at (0.5) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-width> from [10%\] to [20\] at (-0.3) should be [10%\]]
     expected: FAIL
 
   [Web Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto 120 auto\] at (0.3) should be [10px auto auto 20\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-width> from [10%\] to [20\] at (1.5) should be [20\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-width> from [inherit\] to [20px\] at (1) should be [20px\]]
     expected: FAIL
 
@@ -116,51 +86,27 @@
   [Web Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto 120 auto\] at (1.5) should be [110px auto 120 auto\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-width> from [10\] to [20px\] at (-0.3) should be [10\]]
-    expected: FAIL
-
-  [CSS Animations: property <border-image-width> from [10\] to [20%\] at (0.3) should be [10\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto auto 120\] at (0.6) should be [ 70px auto auto  80\]]
     expected: FAIL
 
   [Web Animations: property <border-image-width> from [10px\] to [20\] at (1.5) should be [20\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-width> from [unset\] to [20px\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-width> from [10\] to [20%\] at (1) should be [20%\]]
     expected: FAIL
 
   [Web Animations: property <border-image-width> from [0\] to [20\] at (1.5) should be [30\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-width> from [10\] to [20%\] at (-0.3) should be [10\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto auto 120\] at (-0.3) should be [  0px auto auto   0\]]
     expected: FAIL
 
   [Web Animations: property <border-image-width> from [inherit\] to [20px\] at (1.5) should be [0px\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto 120 auto\] at (0.3) should be [10px auto auto 20\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-width> from [0\] to [20\] at (0.6) should be [12\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-width> from [unset\] to [20px\] at (0.6) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <border-image-width> from [10%\] to [20\] at (-0.3) should be [10%\]]
-    expected: FAIL
-
-  [CSS Animations: property <border-image-width> from [10\] to [20px\] at (1) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-width> from [10px\] to [20\] at (0) should be [10px\]]
     expected: FAIL
 
@@ -170,12 +116,6 @@
   [Web Animations: property <border-image-width> from [10%\] to [20px\] at (1.5) should be [calc(-5% + 30px)\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-width> from [unset\] to [20px\] at (0) should be [unset\]]
-    expected: FAIL
-
-  [CSS Animations: property <border-image-width> from [initial\] to [20px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-width> from [0px\] to [20px\] at (5) should be [100px\]]
     expected: FAIL
 
@@ -185,39 +125,21 @@
   [Web Animations: property <border-image-width> from [unset\] to [20px\] at (0) should be [unset\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto 120 auto\] at (1) should be [110px auto 120 auto\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-width> from [0\] to [20\] at (5) should be [100\]]
     expected: FAIL
 
   [Web Animations: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (10) should be [710px 520% 330 140px\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-width> from [10\] to [20px\] at (0.5) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-width> from [inherit\] to [20px\] at (-0.3) should be [124px\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-width> from [10\] to [20px\] at (1.5) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <border-image-width> from [10\] to [20%\] at (0.5) should be [20%\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-width> from [10%\] to [20px\] at (1) should be [calc(0% + 20px)\]]
     expected: FAIL
 
   [Web Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto auto 120\] at (1) should be [110px auto auto 120\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-width> from [unset\] to [20px\] at (0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Animations: property <border-image-width> from [initial\] to [20px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-width> from [0px\] to [20px\] at (-0.3) should be [0px\]]
     expected: FAIL
 
@@ -230,27 +152,15 @@
   [Web Animations: property <border-image-width> from [unset\] to [20px\] at (-0.3) should be [unset\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-width> from [10px\] to [20\] at (1) should be [20\]]
-    expected: FAIL
-
-  [CSS Animations: property <border-image-width> from [initial\] to [20px\] at (1.5) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-width> from neutral to [20px\] at (1.5) should be [25px\]]
     expected: FAIL
 
   [Web Animations: property <border-image-width> from [10\] to [20px\] at (0) should be [10\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-width> from [10\] to [20%\] at (0) should be [10\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-width> from [0%\] to [20%\] at (1) should be [20%\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-width> from [10%\] to [20\] at (1) should be [20\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-width> from [0%\] to [20%\] at (1.5) should be [30%\]]
     expected: FAIL
 
@@ -269,9 +179,6 @@
   [Web Animations: property <border-image-width> from [0px\] to [20px\] at (1.5) should be [30px\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto 120 auto\] at (0.6) should be [110px auto 120 auto\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (-0.3) should be [0px   5%  21  37px\]]
     expected: FAIL
 
@@ -287,15 +194,9 @@
   [Web Animations: property <border-image-width> from [10\] to [20%\] at (0.5) should be [20%\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-width> from [10\] to [20px\] at (0.6) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-width> from [inherit\] to [20px\] at (0.3) should be [76px\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-width> from [unset\] to [20px\] at (0.5) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-width> from [inherit\] to [20px\] at (0) should be [100px\]]
     expected: FAIL
 
@@ -308,9 +209,6 @@
   [Web Animations: property <border-image-width> from [10%\] to [20px\] at (-0.3) should be [calc(13% + -6px)\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-width> from [initial\] to [20px\] at (0) should be [initial\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-width> from [0\] to [20\] at (-0.3) should be [0\]]
     expected: FAIL
 
@@ -323,12 +221,6 @@
   [Web Animations: property <border-image-width> from [10%\] to [20\] at (0) should be [10%\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-width> from [10%\] to [20\] at (0.6) should be [20\]]
-    expected: FAIL
-
-  [CSS Animations: property <border-image-width> from [initial\] to [20px\] at (0.6) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-width> from [10\] to [20%\] at (0.6) should be [20%\]]
     expected: FAIL
 
@@ -338,9 +230,6 @@
   [Web Animations: property <border-image-width> from [10\] to [20%\] at (0) should be [10\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-width> from [unset\] to [20px\] at (1.5) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-width> from [10px\] to [20%\] at (0) should be [calc(0% + 10px)\]]
     expected: FAIL
 
@@ -362,9 +251,6 @@
   [Web Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto auto 120\] at (1.5) should be [160px auto auto 170\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-width> from [initial\] to [20px\] at (1) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-width> from [10px\] to [20%\] at (1.5) should be [calc(-5px + 30%)\]]
     expected: FAIL
 
@@ -377,9 +263,6 @@
   [Web Animations: property <border-image-width> from neutral to [20px\] at (1) should be [20px\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto 120 auto\] at (-0.3) should be [10px auto auto 20\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-width> from [0px\] to [20px\] at (0) should be [0px\]]
     expected: FAIL
 
@@ -410,9 +293,6 @@
   [Web Animations: property <border-image-width> from [unset\] to [20px\] at (0.3) should be [unset\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-width> from [unset\] to [20px\] at (1) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto 120 auto\] at (-0.3) should be [10px auto auto 20\]]
     expected: FAIL
 
@@ -422,9 +302,6 @@
   [Web Animations: property <border-image-width> from [inherit\] to [20px\] at (0.6) should be [52px\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-width> from [10%\] to [20\] at (0) should be [10%\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-width> from [unset\] to [20px\] at (1.5) should be [20px\]]
     expected: FAIL
 
@@ -434,18 +311,9 @@
   [Web Animations: property <border-image-width> from [10\] to [20%\] at (0.3) should be [10\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-width> from [10\] to [20px\] at (0.3) should be [10\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-width> from [0px\] to [20px\] at (1) should be [20px\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-width> from [10\] to [20%\] at (0.6) should be [20%\]]
-    expected: FAIL
-
-  [CSS Animations: property <border-image-width> from [10px\] to [20\] at (0.5) should be [20\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-width> from neutral to [20px\] at (0.3) should be [13px\]]
     expected: FAIL
 
@@ -470,18 +338,12 @@
   [Web Animations: property <border-image-width> from [0px\] to [20px\] at (0.6) should be [12px\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-width> from [10\] to [20px\] at (0) should be [10\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-width> from [inherit\] to [20px\] at (10) should be [0px\]]
     expected: FAIL
 
   [Web Animations: property <border-image-width> from [10px\] to [20%\] at (1) should be [20%\]]
     expected: FAIL
 
-  [CSS Animations: property <border-image-width> from [10%\] to [20\] at (0.3) should be [10%\]]
-    expected: FAIL
-
   [Web Animations: property <border-image-width> from [10px\] to [20\] at (0.3) should be [10px\]]
     expected: FAIL
 
@@ -547,129 +409,3 @@
 
   [CSS Transitions: property <border-image-width> from [10\] to [20%\] at (0.3) should be [10\]]
     expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <border-image-width> from [initial\] to [20px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <border-image-width> from [initial\] to [20px\] at (0) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <border-image-width> from [initial\] to [20px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <border-image-width> from [initial\] to [20px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <border-image-width> from [initial\] to [20px\] at (0) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <border-image-width> from [initial\] to [20px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <border-image-width> from [unset\] to [20px\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <border-image-width> from [unset\] to [20px\] at (0) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <border-image-width> from [unset\] to [20px\] at (0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <border-image-width> from [unset\] to [20px\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <border-image-width> from [unset\] to [20px\] at (0) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <border-image-width> from [unset\] to [20px\] at (0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <border-image-width> from [10px auto auto 20\] to [110px auto 120 auto\] at (-0.3) should be [10px auto auto 20\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <border-image-width> from [10px auto auto 20\] to [110px auto 120 auto\] at (0) should be [10px auto auto 20\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <border-image-width> from [10px auto auto 20\] to [110px auto 120 auto\] at (0.3) should be [10px auto auto 20\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <border-image-width> from [10px auto auto 20\] to [110px auto 120 auto\] at (-0.3) should be [10px auto auto 20\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <border-image-width> from [10px auto auto 20\] to [110px auto 120 auto\] at (0) should be [10px auto auto 20\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <border-image-width> from [10px auto auto 20\] to [110px auto 120 auto\] at (0.3) should be [10px auto auto 20\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <border-image-width> from [10px\] to [20\] at (-0.3) should be [10px\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <border-image-width> from [10px\] to [20\] at (0) should be [10px\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <border-image-width> from [10px\] to [20\] at (0.3) should be [10px\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <border-image-width> from [10px\] to [20\] at (-0.3) should be [10px\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <border-image-width> from [10px\] to [20\] at (0) should be [10px\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <border-image-width> from [10px\] to [20\] at (0.3) should be [10px\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <border-image-width> from [10\] to [20px\] at (-0.3) should be [10\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <border-image-width> from [10\] to [20px\] at (0) should be [10\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <border-image-width> from [10\] to [20px\] at (0.3) should be [10\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <border-image-width> from [10\] to [20px\] at (-0.3) should be [10\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <border-image-width> from [10\] to [20px\] at (0) should be [10\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <border-image-width> from [10\] to [20px\] at (0.3) should be [10\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <border-image-width> from [10%\] to [20\] at (-0.3) should be [10%\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <border-image-width> from [10%\] to [20\] at (0) should be [10%\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <border-image-width> from [10%\] to [20\] at (0.3) should be [10%\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <border-image-width> from [10%\] to [20\] at (-0.3) should be [10%\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <border-image-width> from [10%\] to [20\] at (0) should be [10%\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <border-image-width> from [10%\] to [20\] at (0.3) should be [10%\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <border-image-width> from [10\] to [20%\] at (-0.3) should be [10\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <border-image-width> from [10\] to [20%\] at (0) should be [10\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <border-image-width> from [10\] to [20%\] at (0.3) should be [10\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <border-image-width> from [10\] to [20%\] at (-0.3) should be [10\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <border-image-width> from [10\] to [20%\] at (0) should be [10\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <border-image-width> from [10\] to [20%\] at (0.3) should be [10\]]
-    expected: FAIL
diff --git a/tests/wpt/meta-legacy-layout/css/css-backgrounds/animations/box-shadow-interpolation.html.ini b/tests/wpt/meta-legacy-layout/css/css-backgrounds/animations/box-shadow-interpolation.html.ini
index 8729df82cc2..0e7360b2653 100644
--- a/tests/wpt/meta-legacy-layout/css/css-backgrounds/animations/box-shadow-interpolation.html.ini
+++ b/tests/wpt/meta-legacy-layout/css/css-backgrounds/animations/box-shadow-interpolation.html.ini
@@ -68,9 +68,6 @@
   [Web Animations: property <box-shadow> from [unset\] to [20px 20px 20px 20px black\] at (1.5) should be [rgb(0, 0, 0) 30px 30px 30px 30px\]]
     expected: FAIL
 
-  [CSS Animations: property <box-shadow> from [10px 20px yellow, 5px 10px green\] to [inset 5px 10px green, 15px 20px blue\] at (1) should be [inset 5px 10px green, 15px 20px blue\]]
-    expected: FAIL
-
   [Web Animations: property <box-shadow> from [15px 10px 5px 6px black\] to [-15px -10px 25px -4px\] at (0.6) should be [rgb(0, 77, 0) -3px -2px 17px 0px\]]
     expected: FAIL
 
@@ -83,9 +80,6 @@
   [Web Animations: property <box-shadow> from [15px 10px 5px 6px black\] to [-15px -10px 25px -4px\] at (0) should be [rgb(0, 0, 0) 15px 10px 5px 6px\]]
     expected: FAIL
 
-  [CSS Animations: property <box-shadow> from [10px 20px yellow, 5px 10px green\] to [inset 5px 10px green, 15px 20px blue\] at (0.6) should be [inset 5px 10px green, 15px 20px blue\]]
-    expected: FAIL
-
   [Web Animations: property <box-shadow> from [initial\] to [20px 20px 20px 20px black\] at (1.5) should be [rgb(0, 0, 0) 30px 30px 30px 30px\]]
     expected: FAIL
 
@@ -107,9 +101,6 @@
   [Web Animations: property <box-shadow> from [inherit\] to [20px 20px 20px 20px black\] at (1) should be [rgb(0, 0, 0) 20px 20px 20px 20px\]]
     expected: FAIL
 
-  [CSS Animations: property <box-shadow> from [10px 20px yellow, 5px 10px green\] to [inset 5px 10px green, 15px 20px blue\] at (0) should be [10px 20px yellow, 5px 10px green\]]
-    expected: FAIL
-
   [Web Animations: property <box-shadow> from [10px 10px 10px 10px black\] to [10px 10px 10px 10px currentColor\] at (0.6) should be [rgb(0, 77, 0) 10px 10px 10px 10px\]]
     expected: FAIL
 
@@ -173,12 +164,6 @@
   [Web Animations: property <box-shadow> from neutral to [20px 20px 20px 20px black\] at (1.5) should be [rgb(0, 0, 0) 25px 15px 25px 15px\]]
     expected: FAIL
 
-  [CSS Animations: property <box-shadow> from [10px 20px yellow, 5px 10px green\] to [inset 5px 10px green, 15px 20px blue\] at (0.5) should be [inset 5px 10px green, 15px 20px blue\]]
-    expected: FAIL
-
-  [CSS Animations: property <box-shadow> from [10px 20px yellow, 5px 10px green\] to [inset 5px 10px green, 15px 20px blue\] at (-0.3) should be [10px 20px yellow, 5px 10px green\]]
-    expected: FAIL
-
   [Web Animations: property <box-shadow> from [unset\] to [20px 20px 20px 20px black\] at (0.3) should be [rgba(0, 0, 0, 0.3) 6px 6px 6px 6px\]]
     expected: FAIL
 
@@ -215,12 +200,6 @@
   [Web Animations: property <box-shadow> from [10px 10px 10px 10px black\] to [10px 10px 10px 10px currentColor\] at (0.3) should be [rgb(0, 38, 0) 10px 10px 10px 10px\]]
     expected: FAIL
 
-  [CSS Animations: property <box-shadow> from [10px 20px yellow, 5px 10px green\] to [inset 5px 10px green, 15px 20px blue\] at (1.5) should be [inset 5px 10px green, 15px 20px blue\]]
-    expected: FAIL
-
-  [CSS Animations: property <box-shadow> from [10px 20px yellow, 5px 10px green\] to [inset 5px 10px green, 15px 20px blue\] at (0.3) should be [10px 20px yellow, 5px 10px green\]]
-    expected: FAIL
-
   [Web Animations: property <box-shadow> from [15px 10px 5px 6px black\] to [-15px -10px 25px -4px orange\] at (0.6) should be [rgb(153, 99, 0) -3px -2px 17px 0px\]]
     expected: FAIL
 
@@ -449,24 +428,6 @@
   [Web Animations: property <box-shadow> from [10px 10px 10px 10px color(srgb 0, 0, 0)\] to [10px 10px 10px 10px color(srgb 1 1 1)\] at (1.5) should be [10px 10px 10px 10px oklab(1 0 0)\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <box-shadow> from [10px 20px yellow, 5px 10px green\] to [inset 5px 10px green, 15px 20px blue\] at (-0.3) should be [10px 20px yellow, 5px 10px green\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <box-shadow> from [10px 20px yellow, 5px 10px green\] to [inset 5px 10px green, 15px 20px blue\] at (0) should be [10px 20px yellow, 5px 10px green\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <box-shadow> from [10px 20px yellow, 5px 10px green\] to [inset 5px 10px green, 15px 20px blue\] at (0.3) should be [10px 20px yellow, 5px 10px green\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <box-shadow> from [10px 20px yellow, 5px 10px green\] to [inset 5px 10px green, 15px 20px blue\] at (-0.3) should be [10px 20px yellow, 5px 10px green\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <box-shadow> from [10px 20px yellow, 5px 10px green\] to [inset 5px 10px green, 15px 20px blue\] at (0) should be [10px 20px yellow, 5px 10px green\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <box-shadow> from [10px 20px yellow, 5px 10px green\] to [inset 5px 10px green, 15px 20px blue\] at (0.3) should be [10px 20px yellow, 5px 10px green\]]
-    expected: FAIL
-
   [CSS Transitions: property <box-shadow> from [10px 10px 10px 10px rgb(0 0 0)\] to [10px 10px 10px 10px color(srgb 1 1 1)\] at (-0.3) should be [10px 10px 10px 10px oklab(0 0 0)\]]
     expected: FAIL
 
diff --git a/tests/wpt/meta-legacy-layout/css/css-flexbox/animation/flex-basis-interpolation.html.ini b/tests/wpt/meta-legacy-layout/css/css-flexbox/animation/flex-basis-interpolation.html.ini
index 6ae3734960e..c3a3b888863 100644
--- a/tests/wpt/meta-legacy-layout/css/css-flexbox/animation/flex-basis-interpolation.html.ini
+++ b/tests/wpt/meta-legacy-layout/css/css-flexbox/animation/flex-basis-interpolation.html.ini
@@ -5,9 +5,6 @@
   [Web Animations: property <flex-basis> from [inherit\] to [2%\] at (1.5) should be [1.5%\]]
     expected: FAIL
 
-  [CSS Animations: property <flex-basis> from [unset\] to [2%\] at (0.6) should be [2%\]]
-    expected: FAIL
-
   [Web Animations: property <flex-basis> from neutral to [2%\] at (0) should be [1%\]]
     expected: FAIL
 
@@ -23,12 +20,6 @@
   [Web Animations: property <flex-basis> from [inherit\] to [2%\] at (1) should be [2%\]]
     expected: FAIL
 
-  [CSS Animations: property <flex-basis> from [unset\] to [2%\] at (0.5) should be [2%\]]
-    expected: FAIL
-
-  [CSS Animations: property <flex-basis> from [unset\] to [2%\] at (1.5) should be [2%\]]
-    expected: FAIL
-
   [Web Animations: property <flex-basis> from [initial\] to [2%\] at (-0.3) should be [initial\]]
     expected: FAIL
 
@@ -38,18 +29,12 @@
   [Web Animations: property <flex-basis> from [0px\] to [100px\] at (1.5) should be [150px\]]
     expected: FAIL
 
-  [CSS Animations: property <flex-basis> from [initial\] to [2%\] at (0.5) should be [2%\]]
-    expected: FAIL
-
   [Web Animations: property <flex-basis> from neutral to [2%\] at (0.3) should be [1.3%\]]
     expected: FAIL
 
   [Web Animations: property <flex-basis> from [initial\] to [2%\] at (0.6) should be [2%\]]
     expected: FAIL
 
-  [CSS Animations: property <flex-basis> from [initial\] to [2%\] at (1.5) should be [2%\]]
-    expected: FAIL
-
   [Web Animations: property <flex-basis> from [initial\] to [2%\] at (0.3) should be [initial\]]
     expected: FAIL
 
@@ -65,9 +50,6 @@
   [Web Animations: property <flex-basis> from [initial\] to [2%\] at (0.5) should be [2%\]]
     expected: FAIL
 
-  [CSS Animations: property <flex-basis> from [initial\] to [2%\] at (0) should be [initial\]]
-    expected: FAIL
-
   [Web Animations: property <flex-basis> from [0px\] to [100px\] at (1) should be [100px\]]
     expected: FAIL
 
@@ -83,15 +65,9 @@
   [Web Animations: property <flex-basis> from [unset\] to [2%\] at (0.5) should be [2%\]]
     expected: FAIL
 
-  [CSS Animations: property <flex-basis> from [unset\] to [2%\] at (0) should be [unset\]]
-    expected: FAIL
-
   [Web Animations: property <flex-basis> from [0%\] to [100%\] at (0.4) should be [40%\]]
     expected: FAIL
 
-  [CSS Animations: property <flex-basis> from [unset\] to [2%\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
   [Web Animations: property <flex-basis> from [0%\] to [100%\] at (1) should be [100%\]]
     expected: FAIL
 
@@ -104,24 +80,15 @@
   [Web Animations: property <flex-basis> from [0px\] to [100px\] at (0) should be [0px\]]
     expected: FAIL
 
-  [CSS Animations: property <flex-basis> from [initial\] to [2%\] at (1) should be [2%\]]
-    expected: FAIL
-
   [Web Animations: property <flex-basis> from [0%\] to [100%\] at (0.6) should be [60%\]]
     expected: FAIL
 
-  [CSS Animations: property <flex-basis> from [initial\] to [2%\] at (0.3) should be [initial\]]
-    expected: FAIL
-
   [Web Animations: property <flex-basis> from [0px\] to [100px\] at (0.6) should be [60px\]]
     expected: FAIL
 
   [Web Animations: property <flex-basis> from [initial\] to [2%\] at (1.5) should be [2%\]]
     expected: FAIL
 
-  [CSS Animations: property <flex-basis> from [unset\] to [2%\] at (1) should be [2%\]]
-    expected: FAIL
-
   [Web Animations: property <flex-basis> from [unset\] to [2%\] at (0) should be [unset\]]
     expected: FAIL
 
@@ -143,15 +110,6 @@
   [Web Animations: property <flex-basis> from neutral to [2%\] at (-0.3) should be [0.7%\]]
     expected: FAIL
 
-  [CSS Animations: property <flex-basis> from [initial\] to [2%\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Animations: property <flex-basis> from [unset\] to [2%\] at (0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Animations: property <flex-basis> from [initial\] to [2%\] at (0.6) should be [2%\]]
-    expected: FAIL
-
   [Web Animations: property <flex-basis> from [0px\] to [100px\] at (0.4) should be [40px\]]
     expected: FAIL
 
@@ -175,39 +133,3 @@
 
   [CSS Transitions: property <flex-basis> from [unset\] to [2%\] at (0.3) should be [unset\]]
     expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <flex-basis> from [initial\] to [2%\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <flex-basis> from [initial\] to [2%\] at (0) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <flex-basis> from [initial\] to [2%\] at (0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <flex-basis> from [initial\] to [2%\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <flex-basis> from [initial\] to [2%\] at (0) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <flex-basis> from [initial\] to [2%\] at (0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <flex-basis> from [unset\] to [2%\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <flex-basis> from [unset\] to [2%\] at (0) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <flex-basis> from [unset\] to [2%\] at (0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <flex-basis> from [unset\] to [2%\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <flex-basis> from [unset\] to [2%\] at (0) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <flex-basis> from [unset\] to [2%\] at (0.3) should be [unset\]]
-    expected: FAIL
diff --git a/tests/wpt/meta-legacy-layout/css/css-fonts/idlharness.html.ini b/tests/wpt/meta-legacy-layout/css/css-fonts/idlharness.html.ini
index 2880d57da8d..901d36dd84b 100644
--- a/tests/wpt/meta-legacy-layout/css/css-fonts/idlharness.html.ini
+++ b/tests/wpt/meta-legacy-layout/css/css-fonts/idlharness.html.ini
@@ -235,3 +235,39 @@
 
   [CSSFontFaceDescriptors interface: attribute line-gap-override]
     expected: FAIL
+
+  [CSSFontFaceDescriptors interface: attribute fontSize]
+    expected: FAIL
+
+  [CSSFontFaceDescriptors interface: attribute font-size]
+    expected: FAIL
+
+  [CSSFontFaceDescriptors interface: attribute sizeAdjust]
+    expected: FAIL
+
+  [CSSFontFaceDescriptors interface: attribute size-adjust]
+    expected: FAIL
+
+  [CSSFontFaceDescriptors interface: attribute superscriptPositionOverride]
+    expected: FAIL
+
+  [CSSFontFaceDescriptors interface: attribute superscript-position-override]
+    expected: FAIL
+
+  [CSSFontFaceDescriptors interface: attribute subscriptPositionOverride]
+    expected: FAIL
+
+  [CSSFontFaceDescriptors interface: attribute subscript-position-override]
+    expected: FAIL
+
+  [CSSFontFaceDescriptors interface: attribute superscriptSizeOverride]
+    expected: FAIL
+
+  [CSSFontFaceDescriptors interface: attribute superscript-size-override]
+    expected: FAIL
+
+  [CSSFontFaceDescriptors interface: attribute subscriptSizeOverride]
+    expected: FAIL
+
+  [CSSFontFaceDescriptors interface: attribute subscript-size-override]
+    expected: FAIL
diff --git a/tests/wpt/meta-legacy-layout/css/css-position/animations/right-interpolation.html.ini b/tests/wpt/meta-legacy-layout/css/css-position/animations/right-interpolation.html.ini
index 8df505cdebf..76ae24009b9 100644
--- a/tests/wpt/meta-legacy-layout/css/css-position/animations/right-interpolation.html.ini
+++ b/tests/wpt/meta-legacy-layout/css/css-position/animations/right-interpolation.html.ini
@@ -23,27 +23,6 @@
   [CSS Transitions: property <right> from [initial\] to [20px\] at (0.3) should be [initial\]]
     expected: FAIL
 
-  [CSS Animations: property <right> from [initial\] to [20px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Animations: property <right> from [initial\] to [20px\] at (0) should be [initial\]]
-    expected: FAIL
-
-  [CSS Animations: property <right> from [initial\] to [20px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Animations: property <right> from [initial\] to [20px\] at (0.5) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <right> from [initial\] to [20px\] at (0.6) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <right> from [initial\] to [20px\] at (1) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <right> from [initial\] to [20px\] at (1.5) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <right> from [initial\] to [20px\] at (-0.3) should be [initial\]]
     expected: FAIL
 
@@ -89,27 +68,6 @@
   [CSS Transitions: property <right> from [unset\] to [20px\] at (0.3) should be [unset\]]
     expected: FAIL
 
-  [CSS Animations: property <right> from [unset\] to [20px\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Animations: property <right> from [unset\] to [20px\] at (0) should be [unset\]]
-    expected: FAIL
-
-  [CSS Animations: property <right> from [unset\] to [20px\] at (0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Animations: property <right> from [unset\] to [20px\] at (0.5) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <right> from [unset\] to [20px\] at (0.6) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <right> from [unset\] to [20px\] at (1) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <right> from [unset\] to [20px\] at (1.5) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <right> from [unset\] to [20px\] at (-0.3) should be [unset\]]
     expected: FAIL
 
@@ -145,39 +103,3 @@
 
   [Web Animations: property <right> from [-10px\] to [10px\] at (1.5) should be [20px\]]
     expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <right> from [initial\] to [20px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <right> from [initial\] to [20px\] at (0) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <right> from [initial\] to [20px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <right> from [initial\] to [20px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <right> from [initial\] to [20px\] at (0) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <right> from [initial\] to [20px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <right> from [unset\] to [20px\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <right> from [unset\] to [20px\] at (0) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <right> from [unset\] to [20px\] at (0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <right> from [unset\] to [20px\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <right> from [unset\] to [20px\] at (0) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <right> from [unset\] to [20px\] at (0.3) should be [unset\]]
-    expected: FAIL
diff --git a/tests/wpt/meta-legacy-layout/css/css-pseudo/highlight-cascade/highlight-cascade-009.html.ini b/tests/wpt/meta-legacy-layout/css/css-pseudo/highlight-cascade/highlight-cascade-009.html.ini
new file mode 100644
index 00000000000..a22e265160c
--- /dev/null
+++ b/tests/wpt/meta-legacy-layout/css/css-pseudo/highlight-cascade/highlight-cascade-009.html.ini
@@ -0,0 +1,6 @@
+[highlight-cascade-009.html]
+  [body ::selection does not use its own custom property]
+    expected: FAIL
+
+  [div::selection does not use its own custom property]
+    expected: FAIL
diff --git a/tests/wpt/meta-legacy-layout/css/css-pseudo/parsing/the-check-pseudo-element.tentative.html.ini b/tests/wpt/meta-legacy-layout/css/css-pseudo/parsing/the-check-pseudo-element.tentative.html.ini
new file mode 100644
index 00000000000..062a58a6e3f
--- /dev/null
+++ b/tests/wpt/meta-legacy-layout/css/css-pseudo/parsing/the-check-pseudo-element.tentative.html.ini
@@ -0,0 +1,2 @@
+[the-check-pseudo-element.tentative.html]
+  expected: TIMEOUT
diff --git a/tests/wpt/meta-legacy-layout/css/css-pseudo/parsing/the-select-arrow-pseudo-element.tentative.html.ini b/tests/wpt/meta-legacy-layout/css/css-pseudo/parsing/the-select-arrow-pseudo-element.tentative.html.ini
new file mode 100644
index 00000000000..a4c4197b59b
--- /dev/null
+++ b/tests/wpt/meta-legacy-layout/css/css-pseudo/parsing/the-select-arrow-pseudo-element.tentative.html.ini
@@ -0,0 +1,2 @@
+[the-select-arrow-pseudo-element.tentative.html]
+  expected: TIMEOUT
diff --git a/tests/wpt/meta-legacy-layout/css/css-sizing/animation/aspect-ratio-interpolation.html.ini b/tests/wpt/meta-legacy-layout/css/css-sizing/animation/aspect-ratio-interpolation.html.ini
index 7274e88e29c..a06ffe97885 100644
--- a/tests/wpt/meta-legacy-layout/css/css-sizing/animation/aspect-ratio-interpolation.html.ini
+++ b/tests/wpt/meta-legacy-layout/css/css-sizing/animation/aspect-ratio-interpolation.html.ini
@@ -44,45 +44,6 @@
   [Web Animations: property <aspect-ratio> from [auto 1 / 2\] to [auto 2 / 1\] at (1.5) should be [auto 4 / 1\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <aspect-ratio> from [auto\] to [2 / 1\] at (-0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <aspect-ratio> from [auto\] to [2 / 1\] at (0) should be [auto\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <aspect-ratio> from [auto\] to [2 / 1\] at (0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <aspect-ratio> from [auto\] to [2 / 1\] at (-0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <aspect-ratio> from [auto\] to [2 / 1\] at (0) should be [auto\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <aspect-ratio> from [auto\] to [2 / 1\] at (0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Animations: property <aspect-ratio> from [auto\] to [2 / 1\] at (-0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Animations: property <aspect-ratio> from [auto\] to [2 / 1\] at (0) should be [auto\]]
-    expected: FAIL
-
-  [CSS Animations: property <aspect-ratio> from [auto\] to [2 / 1\] at (0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Animations: property <aspect-ratio> from [auto\] to [2 / 1\] at (0.5) should be [2 / 1\]]
-    expected: FAIL
-
-  [CSS Animations: property <aspect-ratio> from [auto\] to [2 / 1\] at (0.6) should be [2 / 1\]]
-    expected: FAIL
-
-  [CSS Animations: property <aspect-ratio> from [auto\] to [2 / 1\] at (1) should be [2 / 1\]]
-    expected: FAIL
-
-  [CSS Animations: property <aspect-ratio> from [auto\] to [2 / 1\] at (1.5) should be [2 / 1\]]
-    expected: FAIL
-
   [Web Animations: property <aspect-ratio> from [auto\] to [2 / 1\] at (-0.3) should be [auto\]]
     expected: FAIL
 
@@ -104,45 +65,6 @@
   [Web Animations: property <aspect-ratio> from [auto\] to [2 / 1\] at (1.5) should be [2 / 1\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <aspect-ratio> from [auto 1 / 1\] to [2 / 1\] at (-0.3) should be [auto 1 / 1\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <aspect-ratio> from [auto 1 / 1\] to [2 / 1\] at (0) should be [auto 1 / 1\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <aspect-ratio> from [auto 1 / 1\] to [2 / 1\] at (0.3) should be [auto 1 / 1\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <aspect-ratio> from [auto 1 / 1\] to [2 / 1\] at (-0.3) should be [auto 1 / 1\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <aspect-ratio> from [auto 1 / 1\] to [2 / 1\] at (0) should be [auto 1 / 1\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <aspect-ratio> from [auto 1 / 1\] to [2 / 1\] at (0.3) should be [auto 1 / 1\]]
-    expected: FAIL
-
-  [CSS Animations: property <aspect-ratio> from [auto 1 / 1\] to [2 / 1\] at (-0.3) should be [auto 1 / 1\]]
-    expected: FAIL
-
-  [CSS Animations: property <aspect-ratio> from [auto 1 / 1\] to [2 / 1\] at (0) should be [auto 1 / 1\]]
-    expected: FAIL
-
-  [CSS Animations: property <aspect-ratio> from [auto 1 / 1\] to [2 / 1\] at (0.3) should be [auto 1 / 1\]]
-    expected: FAIL
-
-  [CSS Animations: property <aspect-ratio> from [auto 1 / 1\] to [2 / 1\] at (0.5) should be [2 / 1\]]
-    expected: FAIL
-
-  [CSS Animations: property <aspect-ratio> from [auto 1 / 1\] to [2 / 1\] at (0.6) should be [2 / 1\]]
-    expected: FAIL
-
-  [CSS Animations: property <aspect-ratio> from [auto 1 / 1\] to [2 / 1\] at (1) should be [2 / 1\]]
-    expected: FAIL
-
-  [CSS Animations: property <aspect-ratio> from [auto 1 / 1\] to [2 / 1\] at (1.5) should be [2 / 1\]]
-    expected: FAIL
-
   [Web Animations: property <aspect-ratio> from [auto 1 / 1\] to [2 / 1\] at (-0.3) should be [auto 1 / 1\]]
     expected: FAIL
 
@@ -164,45 +86,6 @@
   [Web Animations: property <aspect-ratio> from [auto 1 / 1\] to [2 / 1\] at (1.5) should be [2 / 1\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <aspect-ratio> from [1 / 0\] to [1 / 1\] at (-0.3) should be [1 / 0\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <aspect-ratio> from [1 / 0\] to [1 / 1\] at (0) should be [1 / 0\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <aspect-ratio> from [1 / 0\] to [1 / 1\] at (0.3) should be [1 / 0\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <aspect-ratio> from [1 / 0\] to [1 / 1\] at (-0.3) should be [1 / 0\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <aspect-ratio> from [1 / 0\] to [1 / 1\] at (0) should be [1 / 0\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <aspect-ratio> from [1 / 0\] to [1 / 1\] at (0.3) should be [1 / 0\]]
-    expected: FAIL
-
-  [CSS Animations: property <aspect-ratio> from [1 / 0\] to [1 / 1\] at (-0.3) should be [1 / 0\]]
-    expected: FAIL
-
-  [CSS Animations: property <aspect-ratio> from [1 / 0\] to [1 / 1\] at (0) should be [1 / 0\]]
-    expected: FAIL
-
-  [CSS Animations: property <aspect-ratio> from [1 / 0\] to [1 / 1\] at (0.3) should be [1 / 0\]]
-    expected: FAIL
-
-  [CSS Animations: property <aspect-ratio> from [1 / 0\] to [1 / 1\] at (0.5) should be [1 / 1\]]
-    expected: FAIL
-
-  [CSS Animations: property <aspect-ratio> from [1 / 0\] to [1 / 1\] at (0.6) should be [1 / 1\]]
-    expected: FAIL
-
-  [CSS Animations: property <aspect-ratio> from [1 / 0\] to [1 / 1\] at (1) should be [1 / 1\]]
-    expected: FAIL
-
-  [CSS Animations: property <aspect-ratio> from [1 / 0\] to [1 / 1\] at (1.5) should be [1 / 1\]]
-    expected: FAIL
-
   [Web Animations: property <aspect-ratio> from [1 / 0\] to [1 / 1\] at (-0.3) should be [1 / 0\]]
     expected: FAIL
 
@@ -224,45 +107,6 @@
   [Web Animations: property <aspect-ratio> from [1 / 0\] to [1 / 1\] at (1.5) should be [1 / 1\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <aspect-ratio> from [1 / 1\] to [0 / 1\] at (-0.3) should be [1 / 1\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <aspect-ratio> from [1 / 1\] to [0 / 1\] at (0) should be [1 / 1\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <aspect-ratio> from [1 / 1\] to [0 / 1\] at (0.3) should be [1 / 1\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <aspect-ratio> from [1 / 1\] to [0 / 1\] at (-0.3) should be [1 / 1\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <aspect-ratio> from [1 / 1\] to [0 / 1\] at (0) should be [1 / 1\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <aspect-ratio> from [1 / 1\] to [0 / 1\] at (0.3) should be [1 / 1\]]
-    expected: FAIL
-
-  [CSS Animations: property <aspect-ratio> from [1 / 1\] to [0 / 1\] at (-0.3) should be [1 / 1\]]
-    expected: FAIL
-
-  [CSS Animations: property <aspect-ratio> from [1 / 1\] to [0 / 1\] at (0) should be [1 / 1\]]
-    expected: FAIL
-
-  [CSS Animations: property <aspect-ratio> from [1 / 1\] to [0 / 1\] at (0.3) should be [1 / 1\]]
-    expected: FAIL
-
-  [CSS Animations: property <aspect-ratio> from [1 / 1\] to [0 / 1\] at (0.5) should be [0 / 1\]]
-    expected: FAIL
-
-  [CSS Animations: property <aspect-ratio> from [1 / 1\] to [0 / 1\] at (0.6) should be [0 / 1\]]
-    expected: FAIL
-
-  [CSS Animations: property <aspect-ratio> from [1 / 1\] to [0 / 1\] at (1) should be [0 / 1\]]
-    expected: FAIL
-
-  [CSS Animations: property <aspect-ratio> from [1 / 1\] to [0 / 1\] at (1.5) should be [0 / 1\]]
-    expected: FAIL
-
   [Web Animations: property <aspect-ratio> from [1 / 1\] to [0 / 1\] at (-0.3) should be [1 / 1\]]
     expected: FAIL
 
diff --git a/tests/wpt/meta-legacy-layout/css/css-sizing/animation/height-interpolation.html.ini b/tests/wpt/meta-legacy-layout/css/css-sizing/animation/height-interpolation.html.ini
index 4ef5c8b240d..d5369624cf0 100644
--- a/tests/wpt/meta-legacy-layout/css/css-sizing/animation/height-interpolation.html.ini
+++ b/tests/wpt/meta-legacy-layout/css/css-sizing/animation/height-interpolation.html.ini
@@ -17,45 +17,6 @@
   [Web Animations: property <height> from neutral to [20px\] at (1.5) should be [25px\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <height> from [initial\] to [20px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <height> from [initial\] to [20px\] at (0) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <height> from [initial\] to [20px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <height> from [initial\] to [20px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <height> from [initial\] to [20px\] at (0) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <height> from [initial\] to [20px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [initial\] to [20px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [initial\] to [20px\] at (0) should be [initial\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [initial\] to [20px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [initial\] to [20px\] at (0.5) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [initial\] to [20px\] at (0.6) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [initial\] to [20px\] at (1) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [initial\] to [20px\] at (1.5) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <height> from [initial\] to [20px\] at (-0.3) should be [initial\]]
     expected: FAIL
 
@@ -95,45 +56,6 @@
   [Web Animations: property <height> from [inherit\] to [20px\] at (1.5) should be [0px\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <height> from [unset\] to [20px\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <height> from [unset\] to [20px\] at (0) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <height> from [unset\] to [20px\] at (0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <height> from [unset\] to [20px\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <height> from [unset\] to [20px\] at (0) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <height> from [unset\] to [20px\] at (0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [unset\] to [20px\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [unset\] to [20px\] at (0) should be [unset\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [unset\] to [20px\] at (0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [unset\] to [20px\] at (0.5) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [unset\] to [20px\] at (0.6) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [unset\] to [20px\] at (1) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [unset\] to [20px\] at (1.5) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <height> from [unset\] to [20px\] at (-0.3) should be [unset\]]
     expected: FAIL
 
@@ -173,45 +95,6 @@
   [Web Animations: property <height> from [0px\] to [100px\] at (1.5) should be [150px\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <height> from [auto\] to [20px\] at (-0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <height> from [auto\] to [20px\] at (0) should be [auto\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <height> from [auto\] to [20px\] at (0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <height> from [auto\] to [20px\] at (-0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <height> from [auto\] to [20px\] at (0) should be [auto\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <height> from [auto\] to [20px\] at (0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [auto\] to [20px\] at (-0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [auto\] to [20px\] at (0) should be [auto\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [auto\] to [20px\] at (0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [auto\] to [20px\] at (0.5) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [auto\] to [20px\] at (0.6) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [auto\] to [20px\] at (1) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [auto\] to [20px\] at (1.5) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <height> from [auto\] to [20px\] at (-0.3) should be [auto\]]
     expected: FAIL
 
@@ -233,27 +116,6 @@
   [Web Animations: property <height> from [auto\] to [20px\] at (1.5) should be [20px\]]
     expected: FAIL
 
-  [CSS Animations: property <height> from [auto\] to [min-content\] at (-0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [auto\] to [min-content\] at (0) should be [auto\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [auto\] to [min-content\] at (0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [auto\] to [min-content\] at (0.5) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [auto\] to [min-content\] at (0.6) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [auto\] to [min-content\] at (1) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [auto\] to [min-content\] at (1.5) should be [min-content\]]
-    expected: FAIL
-
   [Web Animations: property <height> from [auto\] to [min-content\] at (-0.3) should be [auto\]]
     expected: FAIL
 
@@ -275,45 +137,6 @@
   [Web Animations: property <height> from [auto\] to [min-content\] at (1.5) should be [min-content\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <height> from [fit-content\] to [20px\] at (-0.3) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <height> from [fit-content\] to [20px\] at (0) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <height> from [fit-content\] to [20px\] at (0.3) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <height> from [fit-content\] to [20px\] at (-0.3) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <height> from [fit-content\] to [20px\] at (0) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <height> from [fit-content\] to [20px\] at (0.3) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [fit-content\] to [20px\] at (-0.3) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [fit-content\] to [20px\] at (0) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [fit-content\] to [20px\] at (0.3) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [fit-content\] to [20px\] at (0.5) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [fit-content\] to [20px\] at (0.6) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [fit-content\] to [20px\] at (1) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [fit-content\] to [20px\] at (1.5) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <height> from [fit-content\] to [20px\] at (-0.3) should be [fit-content\]]
     expected: FAIL
 
@@ -335,27 +158,6 @@
   [Web Animations: property <height> from [fit-content\] to [20px\] at (1.5) should be [20px\]]
     expected: FAIL
 
-  [CSS Animations: property <height> from [max-content\] to [fit-content\] at (-0.3) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [max-content\] to [fit-content\] at (0) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [max-content\] to [fit-content\] at (0.3) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [max-content\] to [fit-content\] at (0.5) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [max-content\] to [fit-content\] at (0.6) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [max-content\] to [fit-content\] at (1) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [max-content\] to [fit-content\] at (1.5) should be [fit-content\]]
-    expected: FAIL
-
   [Web Animations: property <height> from [max-content\] to [fit-content\] at (-0.3) should be [max-content\]]
     expected: FAIL
 
@@ -377,27 +179,6 @@
   [Web Animations: property <height> from [max-content\] to [fit-content\] at (1.5) should be [fit-content\]]
     expected: FAIL
 
-  [CSS Animations: property <height> from [max-content\] to [stretch\] at (-0.3) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [max-content\] to [stretch\] at (0) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [max-content\] to [stretch\] at (0.3) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [max-content\] to [stretch\] at (0.5) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [max-content\] to [stretch\] at (0.6) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [max-content\] to [stretch\] at (1) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [max-content\] to [stretch\] at (1.5) should be [stretch\]]
-    expected: FAIL
-
   [Web Animations: property <height> from [max-content\] to [stretch\] at (-0.3) should be [max-content\]]
     expected: FAIL
 
@@ -419,33 +200,6 @@
   [Web Animations: property <height> from [max-content\] to [stretch\] at (1.5) should be [stretch\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <height> from [max-content\] to neutral at (-0.3) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <height> from [max-content\] to neutral at (0) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <height> from [max-content\] to neutral at (0.3) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <height> from [max-content\] to neutral at (-0.3) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <height> from [max-content\] to neutral at (0) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <height> from [max-content\] to neutral at (0.3) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [max-content\] to neutral at (-0.3) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [max-content\] to neutral at (0) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from [max-content\] to neutral at (0.3) should be [max-content\]]
-    expected: FAIL
-
   [Web Animations: property <height> from [max-content\] to neutral at (-0.3) should be [max-content\]]
     expected: FAIL
 
@@ -455,18 +209,6 @@
   [Web Animations: property <height> from [max-content\] to neutral at (0.3) should be [max-content\]]
     expected: FAIL
 
-  [CSS Animations: property <height> from neutral to [fit-content\] at (0.5) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from neutral to [fit-content\] at (0.6) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from neutral to [fit-content\] at (1) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from neutral to [fit-content\] at (1.5) should be [fit-content\]]
-    expected: FAIL
-
   [Web Animations: property <height> from neutral to [fit-content\] at (0.5) should be [fit-content\]]
     expected: FAIL
 
@@ -479,18 +221,6 @@
   [Web Animations: property <height> from neutral to [fit-content\] at (1.5) should be [fit-content\]]
     expected: FAIL
 
-  [CSS Animations: property <height> from neutral to [100px\] at (0.5) should be [100px\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from neutral to [100px\] at (0.6) should be [100px\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from neutral to [100px\] at (1) should be [100px\]]
-    expected: FAIL
-
-  [CSS Animations: property <height> from neutral to [100px\] at (1.5) should be [100px\]]
-    expected: FAIL
-
   [Web Animations: property <height> from neutral to [100px\] at (0.5) should be [100px\]]
     expected: FAIL
 
diff --git a/tests/wpt/meta-legacy-layout/css/css-sizing/animation/max-height-interpolation.html.ini b/tests/wpt/meta-legacy-layout/css/css-sizing/animation/max-height-interpolation.html.ini
index 58832208dcc..36797291883 100644
--- a/tests/wpt/meta-legacy-layout/css/css-sizing/animation/max-height-interpolation.html.ini
+++ b/tests/wpt/meta-legacy-layout/css/css-sizing/animation/max-height-interpolation.html.ini
@@ -17,45 +17,6 @@
   [Web Animations: property <max-height> from neutral to [20px\] at (1.5) should be [25px\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-height> from [initial\] to [20px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-height> from [initial\] to [20px\] at (0) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-height> from [initial\] to [20px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-height> from [initial\] to [20px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-height> from [initial\] to [20px\] at (0) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-height> from [initial\] to [20px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [initial\] to [20px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [initial\] to [20px\] at (0) should be [initial\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [initial\] to [20px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [initial\] to [20px\] at (0.5) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [initial\] to [20px\] at (0.6) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [initial\] to [20px\] at (1) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [initial\] to [20px\] at (1.5) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <max-height> from [initial\] to [20px\] at (-0.3) should be [initial\]]
     expected: FAIL
 
@@ -95,45 +56,6 @@
   [Web Animations: property <max-height> from [inherit\] to [20px\] at (1.5) should be [15px\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-height> from [unset\] to [20px\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-height> from [unset\] to [20px\] at (0) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-height> from [unset\] to [20px\] at (0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-height> from [unset\] to [20px\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-height> from [unset\] to [20px\] at (0) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-height> from [unset\] to [20px\] at (0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [unset\] to [20px\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [unset\] to [20px\] at (0) should be [unset\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [unset\] to [20px\] at (0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [unset\] to [20px\] at (0.5) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [unset\] to [20px\] at (0.6) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [unset\] to [20px\] at (1) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [unset\] to [20px\] at (1.5) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <max-height> from [unset\] to [20px\] at (-0.3) should be [unset\]]
     expected: FAIL
 
@@ -173,45 +95,6 @@
   [Web Animations: property <max-height> from [0px\] to [100px\] at (1.5) should be [150px\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-height> from [none\] to [20px\] at (-0.3) should be [none\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-height> from [none\] to [20px\] at (0) should be [none\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-height> from [none\] to [20px\] at (0.3) should be [none\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-height> from [none\] to [20px\] at (-0.3) should be [none\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-height> from [none\] to [20px\] at (0) should be [none\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-height> from [none\] to [20px\] at (0.3) should be [none\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [none\] to [20px\] at (-0.3) should be [none\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [none\] to [20px\] at (0) should be [none\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [none\] to [20px\] at (0.3) should be [none\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [none\] to [20px\] at (0.5) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [none\] to [20px\] at (0.6) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [none\] to [20px\] at (1) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [none\] to [20px\] at (1.5) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <max-height> from [none\] to [20px\] at (-0.3) should be [none\]]
     expected: FAIL
 
@@ -233,45 +116,6 @@
   [Web Animations: property <max-height> from [none\] to [20px\] at (1.5) should be [20px\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-height> from [none\] to [max-content\] at (-0.3) should be [none\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-height> from [none\] to [max-content\] at (0) should be [none\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-height> from [none\] to [max-content\] at (0.3) should be [none\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-height> from [none\] to [max-content\] at (-0.3) should be [none\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-height> from [none\] to [max-content\] at (0) should be [none\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-height> from [none\] to [max-content\] at (0.3) should be [none\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [none\] to [max-content\] at (-0.3) should be [none\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [none\] to [max-content\] at (0) should be [none\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [none\] to [max-content\] at (0.3) should be [none\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [none\] to [max-content\] at (0.5) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [none\] to [max-content\] at (0.6) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [none\] to [max-content\] at (1) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [none\] to [max-content\] at (1.5) should be [max-content\]]
-    expected: FAIL
-
   [Web Animations: property <max-height> from [none\] to [max-content\] at (-0.3) should be [none\]]
     expected: FAIL
 
@@ -293,45 +137,6 @@
   [Web Animations: property <max-height> from [none\] to [max-content\] at (1.5) should be [max-content\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-height> from [stretch\] to [fit-content\] at (-0.3) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-height> from [stretch\] to [fit-content\] at (0) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-height> from [stretch\] to [fit-content\] at (0.3) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-height> from [stretch\] to [fit-content\] at (-0.3) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-height> from [stretch\] to [fit-content\] at (0) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-height> from [stretch\] to [fit-content\] at (0.3) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [stretch\] to [fit-content\] at (-0.3) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [stretch\] to [fit-content\] at (0) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [stretch\] to [fit-content\] at (0.3) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [stretch\] to [fit-content\] at (0.5) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [stretch\] to [fit-content\] at (0.6) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [stretch\] to [fit-content\] at (1) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [stretch\] to [fit-content\] at (1.5) should be [fit-content\]]
-    expected: FAIL
-
   [Web Animations: property <max-height> from [stretch\] to [fit-content\] at (-0.3) should be [stretch\]]
     expected: FAIL
 
@@ -353,45 +158,6 @@
   [Web Animations: property <max-height> from [stretch\] to [fit-content\] at (1.5) should be [fit-content\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-height> from [20px\] to [min-content\] at (-0.3) should be [20px\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-height> from [20px\] to [min-content\] at (0) should be [20px\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-height> from [20px\] to [min-content\] at (0.3) should be [20px\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-height> from [20px\] to [min-content\] at (-0.3) should be [20px\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-height> from [20px\] to [min-content\] at (0) should be [20px\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-height> from [20px\] to [min-content\] at (0.3) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [20px\] to [min-content\] at (-0.3) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [20px\] to [min-content\] at (0) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [20px\] to [min-content\] at (0.3) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [20px\] to [min-content\] at (0.5) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [20px\] to [min-content\] at (0.6) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [20px\] to [min-content\] at (1) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [20px\] to [min-content\] at (1.5) should be [min-content\]]
-    expected: FAIL
-
   [Web Animations: property <max-height> from [20px\] to [min-content\] at (-0.3) should be [20px\]]
     expected: FAIL
 
@@ -413,33 +179,6 @@
   [Web Animations: property <max-height> from [20px\] to [min-content\] at (1.5) should be [min-content\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-height> from [min-content\] to neutral at (-0.3) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-height> from [min-content\] to neutral at (0) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-height> from [min-content\] to neutral at (0.3) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-height> from [min-content\] to neutral at (-0.3) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-height> from [min-content\] to neutral at (0) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-height> from [min-content\] to neutral at (0.3) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [min-content\] to neutral at (-0.3) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [min-content\] to neutral at (0) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [min-content\] to neutral at (0.3) should be [min-content\]]
-    expected: FAIL
-
   [Web Animations: property <max-height> from [min-content\] to neutral at (-0.3) should be [min-content\]]
     expected: FAIL
 
@@ -449,18 +188,6 @@
   [Web Animations: property <max-height> from [min-content\] to neutral at (0.3) should be [min-content\]]
     expected: FAIL
 
-  [CSS Animations: property <max-height> from neutral to [max-content\] at (0.5) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from neutral to [max-content\] at (0.6) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from neutral to [max-content\] at (1) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from neutral to [max-content\] at (1.5) should be [max-content\]]
-    expected: FAIL
-
   [Web Animations: property <max-height> from neutral to [max-content\] at (0.5) should be [max-content\]]
     expected: FAIL
 
diff --git a/tests/wpt/meta-legacy-layout/css/css-sizing/animation/max-width-interpolation.html.ini b/tests/wpt/meta-legacy-layout/css/css-sizing/animation/max-width-interpolation.html.ini
index 2ae4eda83cc..61c84b67f36 100644
--- a/tests/wpt/meta-legacy-layout/css/css-sizing/animation/max-width-interpolation.html.ini
+++ b/tests/wpt/meta-legacy-layout/css/css-sizing/animation/max-width-interpolation.html.ini
@@ -17,45 +17,6 @@
   [Web Animations: property <max-width> from neutral to [20px\] at (1.5) should be [25px\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-width> from [initial\] to [20px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-width> from [initial\] to [20px\] at (0) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-width> from [initial\] to [20px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-width> from [initial\] to [20px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-width> from [initial\] to [20px\] at (0) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-width> from [initial\] to [20px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [initial\] to [20px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [initial\] to [20px\] at (0) should be [initial\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [initial\] to [20px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [initial\] to [20px\] at (0.5) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [initial\] to [20px\] at (0.6) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [initial\] to [20px\] at (1) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [initial\] to [20px\] at (1.5) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <max-width> from [initial\] to [20px\] at (-0.3) should be [initial\]]
     expected: FAIL
 
@@ -95,45 +56,6 @@
   [Web Animations: property <max-width> from [inherit\] to [20px\] at (1.5) should be [0px\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-width> from [unset\] to [20px\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-width> from [unset\] to [20px\] at (0) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-width> from [unset\] to [20px\] at (0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-width> from [unset\] to [20px\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-width> from [unset\] to [20px\] at (0) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-width> from [unset\] to [20px\] at (0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [unset\] to [20px\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [unset\] to [20px\] at (0) should be [unset\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [unset\] to [20px\] at (0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [unset\] to [20px\] at (0.5) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [unset\] to [20px\] at (0.6) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [unset\] to [20px\] at (1) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [unset\] to [20px\] at (1.5) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <max-width> from [unset\] to [20px\] at (-0.3) should be [unset\]]
     expected: FAIL
 
@@ -173,45 +95,6 @@
   [Web Animations: property <max-width> from [0px\] to [100px\] at (1.5) should be [150px\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-width> from [none\] to [20px\] at (-0.3) should be [none\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-width> from [none\] to [20px\] at (0) should be [none\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-width> from [none\] to [20px\] at (0.3) should be [none\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-width> from [none\] to [20px\] at (-0.3) should be [none\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-width> from [none\] to [20px\] at (0) should be [none\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-width> from [none\] to [20px\] at (0.3) should be [none\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [none\] to [20px\] at (-0.3) should be [none\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [none\] to [20px\] at (0) should be [none\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [none\] to [20px\] at (0.3) should be [none\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [none\] to [20px\] at (0.5) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [none\] to [20px\] at (0.6) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [none\] to [20px\] at (1) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [none\] to [20px\] at (1.5) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <max-width> from [none\] to [20px\] at (-0.3) should be [none\]]
     expected: FAIL
 
@@ -233,45 +116,6 @@
   [Web Animations: property <max-width> from [none\] to [20px\] at (1.5) should be [20px\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-width> from [stretch\] to [none\] at (-0.3) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-width> from [stretch\] to [none\] at (0) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-width> from [stretch\] to [none\] at (0.3) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-width> from [stretch\] to [none\] at (-0.3) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-width> from [stretch\] to [none\] at (0) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-width> from [stretch\] to [none\] at (0.3) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [stretch\] to [none\] at (-0.3) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [stretch\] to [none\] at (0) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [stretch\] to [none\] at (0.3) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [stretch\] to [none\] at (0.5) should be [none\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [stretch\] to [none\] at (0.6) should be [none\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [stretch\] to [none\] at (1) should be [none\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [stretch\] to [none\] at (1.5) should be [none\]]
-    expected: FAIL
-
   [Web Animations: property <max-width> from [stretch\] to [none\] at (-0.3) should be [stretch\]]
     expected: FAIL
 
@@ -293,45 +137,6 @@
   [Web Animations: property <max-width> from [stretch\] to [none\] at (1.5) should be [none\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-width> from [fit-content\] to [20px\] at (-0.3) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-width> from [fit-content\] to [20px\] at (0) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-width> from [fit-content\] to [20px\] at (0.3) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-width> from [fit-content\] to [20px\] at (-0.3) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-width> from [fit-content\] to [20px\] at (0) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-width> from [fit-content\] to [20px\] at (0.3) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [fit-content\] to [20px\] at (-0.3) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [fit-content\] to [20px\] at (0) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [fit-content\] to [20px\] at (0.3) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [fit-content\] to [20px\] at (0.5) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [fit-content\] to [20px\] at (0.6) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [fit-content\] to [20px\] at (1) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [fit-content\] to [20px\] at (1.5) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <max-width> from [fit-content\] to [20px\] at (-0.3) should be [fit-content\]]
     expected: FAIL
 
@@ -353,45 +158,6 @@
   [Web Animations: property <max-width> from [fit-content\] to [20px\] at (1.5) should be [20px\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-width> from [max-content\] to [min-content\] at (-0.3) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-width> from [max-content\] to [min-content\] at (0) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-width> from [max-content\] to [min-content\] at (0.3) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-width> from [max-content\] to [min-content\] at (-0.3) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-width> from [max-content\] to [min-content\] at (0) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-width> from [max-content\] to [min-content\] at (0.3) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [max-content\] to [min-content\] at (-0.3) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [max-content\] to [min-content\] at (0) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [max-content\] to [min-content\] at (0.3) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [max-content\] to [min-content\] at (0.5) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [max-content\] to [min-content\] at (0.6) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [max-content\] to [min-content\] at (1) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [max-content\] to [min-content\] at (1.5) should be [min-content\]]
-    expected: FAIL
-
   [Web Animations: property <max-width> from [max-content\] to [min-content\] at (-0.3) should be [max-content\]]
     expected: FAIL
 
@@ -413,33 +179,6 @@
   [Web Animations: property <max-width> from [max-content\] to [min-content\] at (1.5) should be [min-content\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-width> from [min-content\] to neutral at (-0.3) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-width> from [min-content\] to neutral at (0) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-width> from [min-content\] to neutral at (0.3) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-width> from [min-content\] to neutral at (-0.3) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-width> from [min-content\] to neutral at (0) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-width> from [min-content\] to neutral at (0.3) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [min-content\] to neutral at (-0.3) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [min-content\] to neutral at (0) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [min-content\] to neutral at (0.3) should be [min-content\]]
-    expected: FAIL
-
   [Web Animations: property <max-width> from [min-content\] to neutral at (-0.3) should be [min-content\]]
     expected: FAIL
 
@@ -449,18 +188,6 @@
   [Web Animations: property <max-width> from [min-content\] to neutral at (0.3) should be [min-content\]]
     expected: FAIL
 
-  [CSS Animations: property <max-width> from neutral to [fit-content\] at (0.5) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from neutral to [fit-content\] at (0.6) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from neutral to [fit-content\] at (1) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from neutral to [fit-content\] at (1.5) should be [fit-content\]]
-    expected: FAIL
-
   [Web Animations: property <max-width> from neutral to [fit-content\] at (0.5) should be [fit-content\]]
     expected: FAIL
 
diff --git a/tests/wpt/meta-legacy-layout/css/css-sizing/animation/min-height-interpolation.html.ini b/tests/wpt/meta-legacy-layout/css/css-sizing/animation/min-height-interpolation.html.ini
index 7258b235c2b..62504327fcf 100644
--- a/tests/wpt/meta-legacy-layout/css/css-sizing/animation/min-height-interpolation.html.ini
+++ b/tests/wpt/meta-legacy-layout/css/css-sizing/animation/min-height-interpolation.html.ini
@@ -17,45 +17,6 @@
   [Web Animations: property <min-height> from neutral to [20px\] at (1.5) should be [25px\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-height> from [initial\] to [20px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-height> from [initial\] to [20px\] at (0) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-height> from [initial\] to [20px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-height> from [initial\] to [20px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-height> from [initial\] to [20px\] at (0) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-height> from [initial\] to [20px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [initial\] to [20px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [initial\] to [20px\] at (0) should be [initial\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [initial\] to [20px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [initial\] to [20px\] at (0.5) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [initial\] to [20px\] at (0.6) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [initial\] to [20px\] at (1) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [initial\] to [20px\] at (1.5) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <min-height> from [initial\] to [20px\] at (-0.3) should be [initial\]]
     expected: FAIL
 
@@ -95,45 +56,6 @@
   [Web Animations: property <min-height> from [inherit\] to [20px\] at (1.5) should be [15px\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-height> from [unset\] to [20px\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-height> from [unset\] to [20px\] at (0) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-height> from [unset\] to [20px\] at (0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-height> from [unset\] to [20px\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-height> from [unset\] to [20px\] at (0) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-height> from [unset\] to [20px\] at (0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [unset\] to [20px\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [unset\] to [20px\] at (0) should be [unset\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [unset\] to [20px\] at (0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [unset\] to [20px\] at (0.5) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [unset\] to [20px\] at (0.6) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [unset\] to [20px\] at (1) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [unset\] to [20px\] at (1.5) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <min-height> from [unset\] to [20px\] at (-0.3) should be [unset\]]
     expected: FAIL
 
@@ -173,45 +95,6 @@
   [Web Animations: property <min-height> from [0px\] to [100px\] at (1.5) should be [150px\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-height> from [auto\] to [20px\] at (-0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-height> from [auto\] to [20px\] at (0) should be [auto\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-height> from [auto\] to [20px\] at (0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-height> from [auto\] to [20px\] at (-0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-height> from [auto\] to [20px\] at (0) should be [auto\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-height> from [auto\] to [20px\] at (0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [auto\] to [20px\] at (-0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [auto\] to [20px\] at (0) should be [auto\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [auto\] to [20px\] at (0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [auto\] to [20px\] at (0.5) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [auto\] to [20px\] at (0.6) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [auto\] to [20px\] at (1) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [auto\] to [20px\] at (1.5) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <min-height> from [auto\] to [20px\] at (-0.3) should be [auto\]]
     expected: FAIL
 
@@ -233,45 +116,6 @@
   [Web Animations: property <min-height> from [auto\] to [20px\] at (1.5) should be [20px\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-height> from [auto\] to [0px\] at (-0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-height> from [auto\] to [0px\] at (0) should be [auto\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-height> from [auto\] to [0px\] at (0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-height> from [auto\] to [0px\] at (-0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-height> from [auto\] to [0px\] at (0) should be [auto\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-height> from [auto\] to [0px\] at (0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [auto\] to [0px\] at (-0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [auto\] to [0px\] at (0) should be [auto\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [auto\] to [0px\] at (0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [auto\] to [0px\] at (0.5) should be [0px\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [auto\] to [0px\] at (0.6) should be [0px\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [auto\] to [0px\] at (1) should be [0px\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [auto\] to [0px\] at (1.5) should be [0px\]]
-    expected: FAIL
-
   [Web Animations: property <min-height> from [auto\] to [0px\] at (-0.3) should be [auto\]]
     expected: FAIL
 
@@ -293,45 +137,6 @@
   [Web Animations: property <min-height> from [auto\] to [0px\] at (1.5) should be [0px\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-height> from [fit-content\] to [min-content\] at (-0.3) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-height> from [fit-content\] to [min-content\] at (0) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-height> from [fit-content\] to [min-content\] at (0.3) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-height> from [fit-content\] to [min-content\] at (-0.3) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-height> from [fit-content\] to [min-content\] at (0) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-height> from [fit-content\] to [min-content\] at (0.3) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [fit-content\] to [min-content\] at (-0.3) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [fit-content\] to [min-content\] at (0) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [fit-content\] to [min-content\] at (0.3) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [fit-content\] to [min-content\] at (0.5) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [fit-content\] to [min-content\] at (0.6) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [fit-content\] to [min-content\] at (1) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [fit-content\] to [min-content\] at (1.5) should be [min-content\]]
-    expected: FAIL
-
   [Web Animations: property <min-height> from [fit-content\] to [min-content\] at (-0.3) should be [fit-content\]]
     expected: FAIL
 
@@ -353,45 +158,6 @@
   [Web Animations: property <min-height> from [fit-content\] to [min-content\] at (1.5) should be [min-content\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-height> from [max-content\] to [stretch\] at (-0.3) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-height> from [max-content\] to [stretch\] at (0) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-height> from [max-content\] to [stretch\] at (0.3) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-height> from [max-content\] to [stretch\] at (-0.3) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-height> from [max-content\] to [stretch\] at (0) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-height> from [max-content\] to [stretch\] at (0.3) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [max-content\] to [stretch\] at (-0.3) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [max-content\] to [stretch\] at (0) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [max-content\] to [stretch\] at (0.3) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [max-content\] to [stretch\] at (0.5) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [max-content\] to [stretch\] at (0.6) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [max-content\] to [stretch\] at (1) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [max-content\] to [stretch\] at (1.5) should be [stretch\]]
-    expected: FAIL
-
   [Web Animations: property <min-height> from [max-content\] to [stretch\] at (-0.3) should be [max-content\]]
     expected: FAIL
 
@@ -413,33 +179,6 @@
   [Web Animations: property <min-height> from [max-content\] to [stretch\] at (1.5) should be [stretch\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-height> from [fit-content\] to neutral at (-0.3) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-height> from [fit-content\] to neutral at (0) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-height> from [fit-content\] to neutral at (0.3) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-height> from [fit-content\] to neutral at (-0.3) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-height> from [fit-content\] to neutral at (0) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-height> from [fit-content\] to neutral at (0.3) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [fit-content\] to neutral at (-0.3) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [fit-content\] to neutral at (0) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [fit-content\] to neutral at (0.3) should be [fit-content\]]
-    expected: FAIL
-
   [Web Animations: property <min-height> from [fit-content\] to neutral at (-0.3) should be [fit-content\]]
     expected: FAIL
 
@@ -449,18 +188,6 @@
   [Web Animations: property <min-height> from [fit-content\] to neutral at (0.3) should be [fit-content\]]
     expected: FAIL
 
-  [CSS Animations: property <min-height> from neutral to [min-content\] at (0.5) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from neutral to [min-content\] at (0.6) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from neutral to [min-content\] at (1) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from neutral to [min-content\] at (1.5) should be [min-content\]]
-    expected: FAIL
-
   [Web Animations: property <min-height> from neutral to [min-content\] at (0.5) should be [min-content\]]
     expected: FAIL
 
diff --git a/tests/wpt/meta-legacy-layout/css/css-sizing/animation/min-width-interpolation.html.ini b/tests/wpt/meta-legacy-layout/css/css-sizing/animation/min-width-interpolation.html.ini
index e4bceb7f4ba..225c559fac5 100644
--- a/tests/wpt/meta-legacy-layout/css/css-sizing/animation/min-width-interpolation.html.ini
+++ b/tests/wpt/meta-legacy-layout/css/css-sizing/animation/min-width-interpolation.html.ini
@@ -17,45 +17,6 @@
   [Web Animations: property <min-width> from neutral to [20px\] at (1.5) should be [25px\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-width> from [initial\] to [20px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-width> from [initial\] to [20px\] at (0) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-width> from [initial\] to [20px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-width> from [initial\] to [20px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-width> from [initial\] to [20px\] at (0) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-width> from [initial\] to [20px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [initial\] to [20px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [initial\] to [20px\] at (0) should be [initial\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [initial\] to [20px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [initial\] to [20px\] at (0.5) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [initial\] to [20px\] at (0.6) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [initial\] to [20px\] at (1) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [initial\] to [20px\] at (1.5) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <min-width> from [initial\] to [20px\] at (-0.3) should be [initial\]]
     expected: FAIL
 
@@ -95,45 +56,6 @@
   [Web Animations: property <min-width> from [inherit\] to [20px\] at (1.5) should be [15px\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-width> from [unset\] to [20px\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-width> from [unset\] to [20px\] at (0) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-width> from [unset\] to [20px\] at (0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-width> from [unset\] to [20px\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-width> from [unset\] to [20px\] at (0) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-width> from [unset\] to [20px\] at (0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [unset\] to [20px\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [unset\] to [20px\] at (0) should be [unset\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [unset\] to [20px\] at (0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [unset\] to [20px\] at (0.5) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [unset\] to [20px\] at (0.6) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [unset\] to [20px\] at (1) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [unset\] to [20px\] at (1.5) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <min-width> from [unset\] to [20px\] at (-0.3) should be [unset\]]
     expected: FAIL
 
@@ -173,45 +95,6 @@
   [Web Animations: property <min-width> from [0px\] to [100px\] at (1.5) should be [150px\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-width> from [auto\] to [20px\] at (-0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-width> from [auto\] to [20px\] at (0) should be [auto\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-width> from [auto\] to [20px\] at (0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-width> from [auto\] to [20px\] at (-0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-width> from [auto\] to [20px\] at (0) should be [auto\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-width> from [auto\] to [20px\] at (0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [auto\] to [20px\] at (-0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [auto\] to [20px\] at (0) should be [auto\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [auto\] to [20px\] at (0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [auto\] to [20px\] at (0.5) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [auto\] to [20px\] at (0.6) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [auto\] to [20px\] at (1) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [auto\] to [20px\] at (1.5) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <min-width> from [auto\] to [20px\] at (-0.3) should be [auto\]]
     expected: FAIL
 
@@ -233,45 +116,6 @@
   [Web Animations: property <min-width> from [auto\] to [20px\] at (1.5) should be [20px\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-width> from [0px\] to [stretch\] at (-0.3) should be [0px\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-width> from [0px\] to [stretch\] at (0) should be [0px\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-width> from [0px\] to [stretch\] at (0.3) should be [0px\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-width> from [0px\] to [stretch\] at (-0.3) should be [0px\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-width> from [0px\] to [stretch\] at (0) should be [0px\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-width> from [0px\] to [stretch\] at (0.3) should be [0px\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [0px\] to [stretch\] at (-0.3) should be [0px\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [0px\] to [stretch\] at (0) should be [0px\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [0px\] to [stretch\] at (0.3) should be [0px\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [0px\] to [stretch\] at (0.5) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [0px\] to [stretch\] at (0.6) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [0px\] to [stretch\] at (1) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [0px\] to [stretch\] at (1.5) should be [stretch\]]
-    expected: FAIL
-
   [Web Animations: property <min-width> from [0px\] to [stretch\] at (-0.3) should be [0px\]]
     expected: FAIL
 
@@ -293,45 +137,6 @@
   [Web Animations: property <min-width> from [0px\] to [stretch\] at (1.5) should be [stretch\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-width> from [min-content\] to [fit-content\] at (-0.3) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-width> from [min-content\] to [fit-content\] at (0) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-width> from [min-content\] to [fit-content\] at (0.3) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-width> from [min-content\] to [fit-content\] at (-0.3) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-width> from [min-content\] to [fit-content\] at (0) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-width> from [min-content\] to [fit-content\] at (0.3) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [min-content\] to [fit-content\] at (-0.3) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [min-content\] to [fit-content\] at (0) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [min-content\] to [fit-content\] at (0.3) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [min-content\] to [fit-content\] at (0.5) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [min-content\] to [fit-content\] at (0.6) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [min-content\] to [fit-content\] at (1) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [min-content\] to [fit-content\] at (1.5) should be [fit-content\]]
-    expected: FAIL
-
   [Web Animations: property <min-width> from [min-content\] to [fit-content\] at (-0.3) should be [min-content\]]
     expected: FAIL
 
@@ -353,45 +158,6 @@
   [Web Animations: property <min-width> from [min-content\] to [fit-content\] at (1.5) should be [fit-content\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-width> from [auto\] to [max-content\] at (-0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-width> from [auto\] to [max-content\] at (0) should be [auto\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-width> from [auto\] to [max-content\] at (0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-width> from [auto\] to [max-content\] at (-0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-width> from [auto\] to [max-content\] at (0) should be [auto\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-width> from [auto\] to [max-content\] at (0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [auto\] to [max-content\] at (-0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [auto\] to [max-content\] at (0) should be [auto\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [auto\] to [max-content\] at (0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [auto\] to [max-content\] at (0.5) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [auto\] to [max-content\] at (0.6) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [auto\] to [max-content\] at (1) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [auto\] to [max-content\] at (1.5) should be [max-content\]]
-    expected: FAIL
-
   [Web Animations: property <min-width> from [auto\] to [max-content\] at (-0.3) should be [auto\]]
     expected: FAIL
 
@@ -413,33 +179,6 @@
   [Web Animations: property <min-width> from [auto\] to [max-content\] at (1.5) should be [max-content\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-width> from [fit-content\] to neutral at (-0.3) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-width> from [fit-content\] to neutral at (0) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-width> from [fit-content\] to neutral at (0.3) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-width> from [fit-content\] to neutral at (-0.3) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-width> from [fit-content\] to neutral at (0) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-width> from [fit-content\] to neutral at (0.3) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [fit-content\] to neutral at (-0.3) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [fit-content\] to neutral at (0) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [fit-content\] to neutral at (0.3) should be [fit-content\]]
-    expected: FAIL
-
   [Web Animations: property <min-width> from [fit-content\] to neutral at (-0.3) should be [fit-content\]]
     expected: FAIL
 
@@ -449,18 +188,6 @@
   [Web Animations: property <min-width> from [fit-content\] to neutral at (0.3) should be [fit-content\]]
     expected: FAIL
 
-  [CSS Animations: property <min-width> from neutral to [max-content\] at (0.5) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from neutral to [max-content\] at (0.6) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from neutral to [max-content\] at (1) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from neutral to [max-content\] at (1.5) should be [max-content\]]
-    expected: FAIL
-
   [Web Animations: property <min-width> from neutral to [max-content\] at (0.5) should be [max-content\]]
     expected: FAIL
 
diff --git a/tests/wpt/meta-legacy-layout/css/css-sizing/animation/width-interpolation.html.ini b/tests/wpt/meta-legacy-layout/css/css-sizing/animation/width-interpolation.html.ini
index f79e548f7f3..ca35c5dc4af 100644
--- a/tests/wpt/meta-legacy-layout/css/css-sizing/animation/width-interpolation.html.ini
+++ b/tests/wpt/meta-legacy-layout/css/css-sizing/animation/width-interpolation.html.ini
@@ -17,45 +17,6 @@
   [Web Animations: property <width> from neutral to [40px\] at (1.5) should be [55px\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <width> from [initial\] to [40px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <width> from [initial\] to [40px\] at (0) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <width> from [initial\] to [40px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <width> from [initial\] to [40px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <width> from [initial\] to [40px\] at (0) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <width> from [initial\] to [40px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [initial\] to [40px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [initial\] to [40px\] at (0) should be [initial\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [initial\] to [40px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [initial\] to [40px\] at (0.5) should be [40px\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [initial\] to [40px\] at (0.6) should be [40px\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [initial\] to [40px\] at (1) should be [40px\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [initial\] to [40px\] at (1.5) should be [40px\]]
-    expected: FAIL
-
   [Web Animations: property <width> from [initial\] to [40px\] at (-0.3) should be [initial\]]
     expected: FAIL
 
@@ -95,45 +56,6 @@
   [Web Animations: property <width> from [inherit\] to [40px\] at (1.5) should be [10px\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <width> from [unset\] to [40px\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <width> from [unset\] to [40px\] at (0) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <width> from [unset\] to [40px\] at (0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <width> from [unset\] to [40px\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <width> from [unset\] to [40px\] at (0) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <width> from [unset\] to [40px\] at (0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [unset\] to [40px\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [unset\] to [40px\] at (0) should be [unset\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [unset\] to [40px\] at (0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [unset\] to [40px\] at (0.5) should be [40px\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [unset\] to [40px\] at (0.6) should be [40px\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [unset\] to [40px\] at (1) should be [40px\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [unset\] to [40px\] at (1.5) should be [40px\]]
-    expected: FAIL
-
   [Web Animations: property <width> from [unset\] to [40px\] at (-0.3) should be [unset\]]
     expected: FAIL
 
@@ -209,45 +131,6 @@
   [Web Animations: property <width> from [1em\] to [10vw\] at (1.5) should be [145.60px\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <width> from [auto\] to [40px\] at (-0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <width> from [auto\] to [40px\] at (0) should be [auto\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <width> from [auto\] to [40px\] at (0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <width> from [auto\] to [40px\] at (-0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <width> from [auto\] to [40px\] at (0) should be [auto\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <width> from [auto\] to [40px\] at (0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [auto\] to [40px\] at (-0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [auto\] to [40px\] at (0) should be [auto\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [auto\] to [40px\] at (0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [auto\] to [40px\] at (0.5) should be [40px\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [auto\] to [40px\] at (0.6) should be [40px\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [auto\] to [40px\] at (1) should be [40px\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [auto\] to [40px\] at (1.5) should be [40px\]]
-    expected: FAIL
-
   [Web Animations: property <width> from [auto\] to [40px\] at (-0.3) should be [auto\]]
     expected: FAIL
 
@@ -269,27 +152,6 @@
   [Web Animations: property <width> from [auto\] to [40px\] at (1.5) should be [40px\]]
     expected: FAIL
 
-  [CSS Animations: property <width> from [auto\] to [fit-content\] at (-0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [auto\] to [fit-content\] at (0) should be [auto\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [auto\] to [fit-content\] at (0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [auto\] to [fit-content\] at (0.5) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [auto\] to [fit-content\] at (0.6) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [auto\] to [fit-content\] at (1) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [auto\] to [fit-content\] at (1.5) should be [fit-content\]]
-    expected: FAIL
-
   [Web Animations: property <width> from [auto\] to [fit-content\] at (-0.3) should be [auto\]]
     expected: FAIL
 
@@ -311,27 +173,6 @@
   [Web Animations: property <width> from [auto\] to [fit-content\] at (1.5) should be [fit-content\]]
     expected: FAIL
 
-  [CSS Animations: property <width> from [stretch\] to [auto\] at (-0.3) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [stretch\] to [auto\] at (0) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [stretch\] to [auto\] at (0.3) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [stretch\] to [auto\] at (0.5) should be [auto\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [stretch\] to [auto\] at (0.6) should be [auto\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [stretch\] to [auto\] at (1) should be [auto\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [stretch\] to [auto\] at (1.5) should be [auto\]]
-    expected: FAIL
-
   [Web Animations: property <width> from [stretch\] to [auto\] at (-0.3) should be [stretch\]]
     expected: FAIL
 
@@ -353,45 +194,6 @@
   [Web Animations: property <width> from [stretch\] to [auto\] at (1.5) should be [auto\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <width> from [30px\] to [fit-content\] at (-0.3) should be [30px\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <width> from [30px\] to [fit-content\] at (0) should be [30px\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <width> from [30px\] to [fit-content\] at (0.3) should be [30px\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <width> from [30px\] to [fit-content\] at (-0.3) should be [30px\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <width> from [30px\] to [fit-content\] at (0) should be [30px\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <width> from [30px\] to [fit-content\] at (0.3) should be [30px\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [30px\] to [fit-content\] at (-0.3) should be [30px\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [30px\] to [fit-content\] at (0) should be [30px\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [30px\] to [fit-content\] at (0.3) should be [30px\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [30px\] to [fit-content\] at (0.5) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [30px\] to [fit-content\] at (0.6) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [30px\] to [fit-content\] at (1) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [30px\] to [fit-content\] at (1.5) should be [fit-content\]]
-    expected: FAIL
-
   [Web Animations: property <width> from [30px\] to [fit-content\] at (-0.3) should be [30px\]]
     expected: FAIL
 
@@ -413,27 +215,6 @@
   [Web Animations: property <width> from [30px\] to [fit-content\] at (1.5) should be [fit-content\]]
     expected: FAIL
 
-  [CSS Animations: property <width> from [max-content\] to [min-content\] at (-0.3) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [max-content\] to [min-content\] at (0) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [max-content\] to [min-content\] at (0.3) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [max-content\] to [min-content\] at (0.5) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [max-content\] to [min-content\] at (0.6) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [max-content\] to [min-content\] at (1) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [max-content\] to [min-content\] at (1.5) should be [min-content\]]
-    expected: FAIL
-
   [Web Animations: property <width> from [max-content\] to [min-content\] at (-0.3) should be [max-content\]]
     expected: FAIL
 
@@ -455,33 +236,6 @@
   [Web Animations: property <width> from [max-content\] to [min-content\] at (1.5) should be [min-content\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <width> from [max-content\] to neutral at (-0.3) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <width> from [max-content\] to neutral at (0) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <width> from [max-content\] to neutral at (0.3) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <width> from [max-content\] to neutral at (-0.3) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <width> from [max-content\] to neutral at (0) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <width> from [max-content\] to neutral at (0.3) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [max-content\] to neutral at (-0.3) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [max-content\] to neutral at (0) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from [max-content\] to neutral at (0.3) should be [max-content\]]
-    expected: FAIL
-
   [Web Animations: property <width> from [max-content\] to neutral at (-0.3) should be [max-content\]]
     expected: FAIL
 
@@ -491,18 +245,6 @@
   [Web Animations: property <width> from [max-content\] to neutral at (0.3) should be [max-content\]]
     expected: FAIL
 
-  [CSS Animations: property <width> from neutral to [min-content\] at (0.5) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from neutral to [min-content\] at (0.6) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from neutral to [min-content\] at (1) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <width> from neutral to [min-content\] at (1.5) should be [min-content\]]
-    expected: FAIL
-
   [Web Animations: property <width> from neutral to [min-content\] at (0.5) should be [min-content\]]
     expected: FAIL
 
diff --git a/tests/wpt/meta-legacy-layout/css/css-sizing/stretch/block-height-1.html.ini b/tests/wpt/meta-legacy-layout/css/css-sizing/stretch/block-height-1.html.ini
deleted file mode 100644
index 5c9d7ecf7ea..00000000000
--- a/tests/wpt/meta-legacy-layout/css/css-sizing/stretch/block-height-1.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[block-height-1.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta-legacy-layout/css/css-sizing/stretch/block-height-2.html.ini b/tests/wpt/meta-legacy-layout/css/css-sizing/stretch/block-height-2.html.ini
deleted file mode 100644
index 8e53e770c55..00000000000
--- a/tests/wpt/meta-legacy-layout/css/css-sizing/stretch/block-height-2.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[block-height-2.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta-legacy-layout/css/css-text/parsing/hyphenate-limit-chars-computed.html.ini b/tests/wpt/meta-legacy-layout/css/css-text/parsing/hyphenate-limit-chars-computed.html.ini
index c1cddc99f61..8b14b402685 100644
--- a/tests/wpt/meta-legacy-layout/css/css-text/parsing/hyphenate-limit-chars-computed.html.ini
+++ b/tests/wpt/meta-legacy-layout/css/css-text/parsing/hyphenate-limit-chars-computed.html.ini
@@ -28,3 +28,9 @@
 
   [Property hyphenate-limit-chars value 'auto auto 2']
     expected: FAIL
+
+  [Property hyphenate-limit-chars value 'auto']
+    expected: FAIL
+
+  [Property hyphenate-limit-chars value 'auto 2 2']
+    expected: FAIL
diff --git a/tests/wpt/meta-legacy-layout/css/css-text/parsing/hyphenate-limit-chars-valid.html.ini b/tests/wpt/meta-legacy-layout/css/css-text/parsing/hyphenate-limit-chars-valid.html.ini
index 91a7ce28696..65b74941507 100644
--- a/tests/wpt/meta-legacy-layout/css/css-text/parsing/hyphenate-limit-chars-valid.html.ini
+++ b/tests/wpt/meta-legacy-layout/css/css-text/parsing/hyphenate-limit-chars-valid.html.ini
@@ -25,3 +25,9 @@
 
   [e.style['hyphenate-limit-chars'\] = "auto auto 2" should set the property value]
     expected: FAIL
+
+  [e.style['hyphenate-limit-chars'\] = "5 2 2" should set the property value]
+    expected: FAIL
+
+  [e.style['hyphenate-limit-chars'\] = "auto 2 2" should set the property value]
+    expected: FAIL
diff --git a/tests/wpt/meta-legacy-layout/css/css-text/white-space/seg-break-transformation-004.tentative.html.ini b/tests/wpt/meta-legacy-layout/css/css-text/white-space/seg-break-transformation-004.tentative.html.ini
index 3d66d0b5240..0e6cbe6fa4c 100644
--- a/tests/wpt/meta-legacy-layout/css/css-text/white-space/seg-break-transformation-004.tentative.html.ini
+++ b/tests/wpt/meta-legacy-layout/css/css-text/white-space/seg-break-transformation-004.tentative.html.ini
@@ -35,3 +35,38 @@
   [multiple linebreaks ２４₩]
     expected: FAIL
 
+  [linebreak only ﾉｺﾘ２４]
+    expected: FAIL
+
+  [spaces linebreak ﾉｺﾘ２４]
+    expected: FAIL
+
+  [linebreak spaces ﾉｺﾘ２４]
+    expected: FAIL
+
+  [spaces linebreak spaces ﾉｺﾘ２４]
+    expected: FAIL
+
+  [multiple linebreaks ﾉｺﾘ２４]
+    expected: FAIL
+
+  [multiple linebreaks + spaces ﾉｺﾘ２４]
+    expected: FAIL
+
+  [linebreak only ２４ｺ]
+    expected: FAIL
+
+  [spaces linebreak ２４ｺ]
+    expected: FAIL
+
+  [linebreak spaces ２４ｺ]
+    expected: FAIL
+
+  [spaces linebreak spaces ２４ｺ]
+    expected: FAIL
+
+  [multiple linebreaks ２４ｺ]
+    expected: FAIL
+
+  [multiple linebreaks + spaces ２４ｺ]
+    expected: FAIL
diff --git a/tests/wpt/meta-legacy-layout/css/css-transforms/animation/perspective-interpolation.html.ini b/tests/wpt/meta-legacy-layout/css/css-transforms/animation/perspective-interpolation.html.ini
index 494b7fd1a80..86da621cd63 100644
--- a/tests/wpt/meta-legacy-layout/css/css-transforms/animation/perspective-interpolation.html.ini
+++ b/tests/wpt/meta-legacy-layout/css/css-transforms/animation/perspective-interpolation.html.ini
@@ -5,12 +5,6 @@
   [Web Animations: property <perspective> from neutral to [20px\] at (-1) should be [none\]]
     expected: FAIL
 
-  [CSS Animations: property <perspective> from [50px\] to [none\] at (1) should be [none\]]
-    expected: FAIL
-
-  [CSS Animations: property <perspective> from [50px\] to [none\] at (0.3) should be [50px\]]
-    expected: FAIL
-
   [Web Animations: property <perspective> from [unset\] to [20px\] at (0.5) should be [20px\]]
     expected: FAIL
 
@@ -53,15 +47,6 @@
   [Web Animations: property <perspective> from [unset\] to [20px\] at (1) should be [20px\]]
     expected: FAIL
 
-  [CSS Animations: property <perspective> from [initial\] to [20px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Animations: property <perspective> from [unset\] to [20px\] at (0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Animations: property <perspective> from [unset\] to [20px\] at (0) should be [unset\]]
-    expected: FAIL
-
   [Web Animations: property <perspective> from [50px\] to [none\] at (1.5) should be [none\]]
     expected: FAIL
 
@@ -83,9 +68,6 @@
   [Web Animations: property <perspective> from neutral to [20px\] at (-0.3) should be [7px\]]
     expected: FAIL
 
-  [CSS Animations: property <perspective> from [50px\] to [none\] at (0) should be [50px\]]
-    expected: FAIL
-
   [Web Animations: property <perspective> from [inherit\] to [20px\] at (-0.3) should be [33px\]]
     expected: FAIL
 
@@ -95,42 +77,21 @@
   [CSS Transitions with transition: all: property <perspective> from [50px\] to [100px\] at (-20) should be [none\]]
     expected: FAIL
 
-  [CSS Animations: property <perspective> from [unset\] to [20px\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
   [Web Animations: property <perspective> from [unset\] to [20px\] at (0.6) should be [20px\]]
     expected: FAIL
 
-  [CSS Animations: property <perspective> from [initial\] to [20px\] at (0) should be [initial\]]
-    expected: FAIL
-
   [Web Animations: property <perspective> from [50px\] to [none\] at (0.6) should be [none\]]
     expected: FAIL
 
   [Web Animations: property <perspective> from [unset\] to [20px\] at (0.3) should be [unset\]]
     expected: FAIL
 
-  [CSS Animations: property <perspective> from [unset\] to [20px\] at (1) should be [20px\]]
-    expected: FAIL
-
   [CSS Transitions with transition: all: property <perspective> from neutral to [20px\] at (-1) should be [none\]]
     expected: FAIL
 
-  [CSS Animations: property <perspective> from [50px\] to [none\] at (0.5) should be [none\]]
-    expected: FAIL
-
   [Web Animations: property <perspective> from [initial\] to [20px\] at (1.5) should be [20px\]]
     expected: FAIL
 
-  [CSS Animations: property <perspective> from [50px\] to [none\] at (-0.3) should be [50px\]]
-    expected: FAIL
-
-  [CSS Animations: property <perspective> from [50px\] to [none\] at (0.6) should be [none\]]
-    expected: FAIL
-
-  [CSS Animations: property <perspective> from [unset\] to [20px\] at (0.5) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <perspective> from neutral to [20px\] at (-20) should be [none\]]
     expected: FAIL
 
@@ -155,9 +116,6 @@
   [Web Animations: property <perspective> from [unset\] to [20px\] at (0) should be [unset\]]
     expected: FAIL
 
-  [CSS Animations: property <perspective> from [initial\] to [20px\] at (0.5) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <perspective> from [unset\] to [20px\] at (1.5) should be [20px\]]
     expected: FAIL
 
@@ -182,9 +140,6 @@
   [Web Animations: property <perspective> from neutral to [20px\] at (0) should be [10px\]]
     expected: FAIL
 
-  [CSS Animations: property <perspective> from [initial\] to [20px\] at (0.6) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <perspective> from [inherit\] to [20px\] at (1) should be [20px\]]
     expected: FAIL
 
@@ -197,21 +152,12 @@
   [CSS Transitions: property <perspective> from neutral to [20px\] at (-20) should be [none\]]
     expected: FAIL
 
-  [CSS Animations: property <perspective> from [initial\] to [20px\] at (1) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <perspective> from neutral to [20px\] at (1) should be [20px\]]
     expected: FAIL
 
-  [CSS Animations: property <perspective> from [unset\] to [20px\] at (0.6) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <perspective> from [initial\] to [20px\] at (-0.3) should be [initial\]]
     expected: FAIL
 
-  [CSS Animations: property <perspective> from [50px\] to [none\] at (1.5) should be [none\]]
-    expected: FAIL
-
   [Web Animations: property <perspective> from [unset\] to [20px\] at (-0.3) should be [unset\]]
     expected: FAIL
 
@@ -221,15 +167,6 @@
   [CSS Transitions: property <perspective> from neutral to [20px\] at (-1) should be [none\]]
     expected: FAIL
 
-  [CSS Animations: property <perspective> from [initial\] to [20px\] at (1.5) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <perspective> from [unset\] to [20px\] at (1.5) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <perspective> from [initial\] to [20px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
   [Web Animations: property <perspective> from [50px\] to [none\] at (1) should be [none\]]
     expected: FAIL
 
@@ -298,57 +235,3 @@
 
   [CSS Transitions: property <perspective> from [50px\] to [none\] at (0.3) should be [50px\]]
     expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <perspective> from [initial\] to [20px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <perspective> from [initial\] to [20px\] at (0) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <perspective> from [initial\] to [20px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <perspective> from [initial\] to [20px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <perspective> from [initial\] to [20px\] at (0) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <perspective> from [initial\] to [20px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <perspective> from [unset\] to [20px\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <perspective> from [unset\] to [20px\] at (0) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <perspective> from [unset\] to [20px\] at (0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <perspective> from [unset\] to [20px\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <perspective> from [unset\] to [20px\] at (0) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <perspective> from [unset\] to [20px\] at (0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <perspective> from [50px\] to [none\] at (-0.3) should be [50px\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <perspective> from [50px\] to [none\] at (0) should be [50px\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <perspective> from [50px\] to [none\] at (0.3) should be [50px\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <perspective> from [50px\] to [none\] at (-0.3) should be [50px\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <perspective> from [50px\] to [none\] at (0) should be [50px\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <perspective> from [50px\] to [none\] at (0.3) should be [50px\]]
-    expected: FAIL
diff --git a/tests/wpt/meta-legacy-layout/css/css-transitions/animations/vertical-align-interpolation.html.ini b/tests/wpt/meta-legacy-layout/css/css-transitions/animations/vertical-align-interpolation.html.ini
index a152d9ffe99..ffe6c189c63 100644
--- a/tests/wpt/meta-legacy-layout/css/css-transitions/animations/vertical-align-interpolation.html.ini
+++ b/tests/wpt/meta-legacy-layout/css/css-transitions/animations/vertical-align-interpolation.html.ini
@@ -2,18 +2,9 @@
   [Web Animations: property <vertical-align> from [initial\] to [40px\] at (0) should be [initial\]]
     expected: FAIL
 
-  [CSS Animations: property <vertical-align> from [super\] to [40%\] at (1) should be [40%\]]
-    expected: FAIL
-
   [Web Animations: property <vertical-align> from neutral to [40px\] at (-0.5) should be [-5px\]]
     expected: FAIL
 
-  [CSS Animations: property <vertical-align> from [unset\] to [40px\] at (0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Animations: property <vertical-align> from [unset\] to [40px\] at (0.5) should be [40px\]]
-    expected: FAIL
-
   [Web Animations: property <vertical-align> from [0px\] to [100px\] at (0.6) should be [60px\]]
     expected: FAIL
 
@@ -29,12 +20,6 @@
   [Web Animations: property <vertical-align> from [inherit\] to [40px\] at (1) should be [40px\]]
     expected: FAIL
 
-  [CSS Animations: property <vertical-align> from [super\] to [40%\] at (0.6) should be [40%\]]
-    expected: FAIL
-
-  [CSS Animations: property <vertical-align> from [super\] to [40%\] at (0.3) should be [super\]]
-    expected: FAIL
-
   [Web Animations: property <vertical-align> from [inherit\] to [40px\] at (0.6) should be [64px\]]
     expected: FAIL
 
@@ -44,30 +29,12 @@
   [Web Animations: property <vertical-align> from [initial\] to [40px\] at (0.5) should be [40px\]]
     expected: FAIL
 
-  [CSS Animations: property <vertical-align> from [super\] to [40%\] at (1.5) should be [40%\]]
-    expected: FAIL
-
-  [CSS Animations: property <vertical-align> from [unset\] to [40px\] at (0) should be [unset\]]
-    expected: FAIL
-
   [Web Animations: property <vertical-align> from [40px\] to [40%\] at (-0.5) should be [calc(60px - 20%)\]]
     expected: FAIL
 
-  [CSS Animations: property <vertical-align> from [super\] to [40%\] at (-0.3) should be [super\]]
-    expected: FAIL
-
-  [CSS Animations: property <vertical-align> from [initial\] to [40px\] at (0.6) should be [40px\]]
-    expected: FAIL
-
   [Web Animations: property <vertical-align> from [initial\] to [40px\] at (0.3) should be [initial\]]
     expected: FAIL
 
-  [CSS Animations: property <vertical-align> from [initial\] to [40px\] at (0.5) should be [40px\]]
-    expected: FAIL
-
-  [CSS Animations: property <vertical-align> from [unset\] to [40px\] at (1.5) should be [40px\]]
-    expected: FAIL
-
   [Web Animations: property <vertical-align> from neutral to [40px\] at (0.3) should be [19px\]]
     expected: FAIL
 
@@ -83,18 +50,12 @@
   [Web Animations: property <vertical-align> from [inherit\] to [40px\] at (0) should be [100px\]]
     expected: FAIL
 
-  [CSS Animations: property <vertical-align> from [unset\] to [40px\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
   [Web Animations: property <vertical-align> from [super\] to [40%\] at (1.5) should be [40%\]]
     expected: FAIL
 
   [Web Animations: property <vertical-align> from [0px\] to [100px\] at (0.3) should be [30px\]]
     expected: FAIL
 
-  [CSS Animations: property <vertical-align> from [initial\] to [40px\] at (0) should be [initial\]]
-    expected: FAIL
-
   [Web Animations: property <vertical-align> from [40px\] to [40%\] at (1) should be [calc(0px + 40%)\]]
     expected: FAIL
 
@@ -122,9 +83,6 @@
   [Web Animations: property <vertical-align> from [initial\] to [40px\] at (-0.3) should be [initial\]]
     expected: FAIL
 
-  [CSS Animations: property <vertical-align> from [initial\] to [40px\] at (1) should be [40px\]]
-    expected: FAIL
-
   [Web Animations: property <vertical-align> from [initial\] to [40px\] at (1) should be [40px\]]
     expected: FAIL
 
@@ -134,15 +92,6 @@
   [Web Animations: property <vertical-align> from neutral to [40px\] at (1) should be [40px\]]
     expected: FAIL
 
-  [CSS Animations: property <vertical-align> from [initial\] to [40px\] at (1.5) should be [40px\]]
-    expected: FAIL
-
-  [CSS Animations: property <vertical-align> from [initial\] to [40px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Animations: property <vertical-align> from [initial\] to [40px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
   [Web Animations: property <vertical-align> from [40px\] to [40%\] at (0.3) should be [calc(28px + 12%)\]]
     expected: FAIL
 
@@ -158,9 +107,6 @@
   [Web Animations: property <vertical-align> from [unset\] to [40px\] at (0.3) should be [unset\]]
     expected: FAIL
 
-  [CSS Animations: property <vertical-align> from [super\] to [40%\] at (0) should be [super\]]
-    expected: FAIL
-
   [Web Animations: property <vertical-align> from [initial\] to [40px\] at (0.6) should be [40px\]]
     expected: FAIL
 
@@ -173,18 +119,9 @@
   [Web Animations: property <vertical-align> from [super\] to [40%\] at (1) should be [40%\]]
     expected: FAIL
 
-  [CSS Animations: property <vertical-align> from [super\] to [40%\] at (0.5) should be [40%\]]
-    expected: FAIL
-
-  [CSS Animations: property <vertical-align> from [unset\] to [40px\] at (0.6) should be [40px\]]
-    expected: FAIL
-
   [Web Animations: property <vertical-align> from [unset\] to [40px\] at (1) should be [40px\]]
     expected: FAIL
 
-  [CSS Animations: property <vertical-align> from [unset\] to [40px\] at (1) should be [40px\]]
-    expected: FAIL
-
   [Web Animations: property <vertical-align> from [0px\] to [100px\] at (-0.5) should be [-50px\]]
     expected: FAIL
 
@@ -223,57 +160,3 @@
 
   [CSS Transitions: property <vertical-align> from [super\] to [40%\] at (0.3) should be [super\]]
     expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <vertical-align> from [initial\] to [40px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <vertical-align> from [initial\] to [40px\] at (0) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <vertical-align> from [initial\] to [40px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <vertical-align> from [initial\] to [40px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <vertical-align> from [initial\] to [40px\] at (0) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <vertical-align> from [initial\] to [40px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <vertical-align> from [unset\] to [40px\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <vertical-align> from [unset\] to [40px\] at (0) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <vertical-align> from [unset\] to [40px\] at (0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <vertical-align> from [unset\] to [40px\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <vertical-align> from [unset\] to [40px\] at (0) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <vertical-align> from [unset\] to [40px\] at (0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <vertical-align> from [super\] to [40%\] at (-0.3) should be [super\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <vertical-align> from [super\] to [40%\] at (0) should be [super\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <vertical-align> from [super\] to [40%\] at (0.3) should be [super\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <vertical-align> from [super\] to [40%\] at (-0.3) should be [super\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <vertical-align> from [super\] to [40%\] at (0) should be [super\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <vertical-align> from [super\] to [40%\] at (0.3) should be [super\]]
-    expected: FAIL
diff --git a/tests/wpt/meta-legacy-layout/css/css-transitions/animations/z-index-interpolation.html.ini b/tests/wpt/meta-legacy-layout/css/css-transitions/animations/z-index-interpolation.html.ini
index 3821ea57b40..2738962818e 100644
--- a/tests/wpt/meta-legacy-layout/css/css-transitions/animations/z-index-interpolation.html.ini
+++ b/tests/wpt/meta-legacy-layout/css/css-transitions/animations/z-index-interpolation.html.ini
@@ -8,15 +8,6 @@
   [Web Animations: property <z-index> from [auto\] to [10\] at (1.5) should be [10\]]
     expected: FAIL
 
-  [CSS Animations: property <z-index> from [unset\] to [5\] at (0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Animations: property <z-index> from [initial\] to [5\] at (1) should be [5\]]
-    expected: FAIL
-
-  [CSS Animations: property <z-index> from [initial\] to [5\] at (1.5) should be [5\]]
-    expected: FAIL
-
   [Web Animations: property <z-index> from [auto\] to [10\] at (-0.3) should be [auto\]]
     expected: FAIL
 
@@ -26,27 +17,15 @@
   [Web Animations: property <z-index> from neutral to [5\] at (1.5) should be [9\]]
     expected: FAIL
 
-  [CSS Animations: property <z-index> from [initial\] to [5\] at (0) should be [initial\]]
-    expected: FAIL
-
   [Web Animations: property <z-index> from [2\] to [4\] at (-0.3) should be [1\]]
     expected: FAIL
 
   [Web Animations: property <z-index> from [initial\] to [5\] at (0.6) should be [5\]]
     expected: FAIL
 
-  [CSS Animations: property <z-index> from [auto\] to [10\] at (0.5) should be [10\]]
-    expected: FAIL
-
   [Web Animations: property <z-index> from neutral to [5\] at (1) should be [5\]]
     expected: FAIL
 
-  [CSS Animations: property <z-index> from [unset\] to [5\] at (0.5) should be [5\]]
-    expected: FAIL
-
-  [CSS Animations: property <z-index> from [unset\] to [5\] at (1.5) should be [5\]]
-    expected: FAIL
-
   [Web Animations: property <z-index> from [initial\] to [5\] at (0.5) should be [5\]]
     expected: FAIL
 
@@ -77,9 +56,6 @@
   [Web Animations: property <z-index> from [initial\] to [5\] at (1.5) should be [5\]]
     expected: FAIL
 
-  [CSS Animations: property <z-index> from [initial\] to [5\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
   [Web Animations: property <z-index> from [initial\] to [5\] at (0) should be [initial\]]
     expected: FAIL
 
@@ -95,9 +71,6 @@
   [Web Animations: property <z-index> from [unset\] to [5\] at (0) should be [unset\]]
     expected: FAIL
 
-  [CSS Animations: property <z-index> from [auto\] to [10\] at (1) should be [10\]]
-    expected: FAIL
-
   [Web Animations: property <z-index> from [2\] to [4\] at (1) should be [4\]]
     expected: FAIL
 
@@ -113,18 +86,9 @@
   [Web Animations: property <z-index> from neutral to [5\] at (0.3) should be [0\]]
     expected: FAIL
 
-  [CSS Animations: property <z-index> from [auto\] to [10\] at (1.5) should be [10\]]
-    expected: FAIL
-
-  [CSS Animations: property <z-index> from [unset\] to [5\] at (0.6) should be [5\]]
-    expected: FAIL
-
   [Web Animations: property <z-index> from [-5\] to [5\] at (0.6) should be [1\]]
     expected: FAIL
 
-  [CSS Animations: property <z-index> from [unset\] to [5\] at (1) should be [5\]]
-    expected: FAIL
-
   [Web Animations: property <z-index> from [unset\] to [5\] at (0.5) should be [5\]]
     expected: FAIL
 
@@ -134,9 +98,6 @@
   [Web Animations: property <z-index> from [-5\] to [5\] at (0.3) should be [-2\]]
     expected: FAIL
 
-  [CSS Animations: property <z-index> from [auto\] to [10\] at (0.3) should be [auto\]]
-    expected: FAIL
-
   [Web Animations: property <z-index> from [unset\] to [5\] at (1) should be [5\]]
     expected: FAIL
 
@@ -152,12 +113,6 @@
   [Web Animations: property <z-index> from [-5\] to [5\] at (-0.3) should be [-8\]]
     expected: FAIL
 
-  [CSS Animations: property <z-index> from [auto\] to [10\] at (0) should be [auto\]]
-    expected: FAIL
-
-  [CSS Animations: property <z-index> from [unset\] to [5\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
   [Web Animations: property <z-index> from [-2\] to [-4\] at (0.1) should be [-2\]]
     expected: FAIL
 
@@ -182,15 +137,9 @@
   [Web Animations: property <z-index> from [unset\] to [5\] at (0.3) should be [unset\]]
     expected: FAIL
 
-  [CSS Animations: property <z-index> from [initial\] to [5\] at (0.6) should be [5\]]
-    expected: FAIL
-
   [Web Animations: property <z-index> from [auto\] to [10\] at (0.5) should be [10\]]
     expected: FAIL
 
-  [CSS Animations: property <z-index> from [initial\] to [5\] at (0.5) should be [5\]]
-    expected: FAIL
-
   [Web Animations: property <z-index> from [auto\] to [10\] at (0.3) should be [auto\]]
     expected: FAIL
 
@@ -200,24 +149,12 @@
   [Web Animations: property <z-index> from [inherit\] to [5\] at (1) should be [5\]]
     expected: FAIL
 
-  [CSS Animations: property <z-index> from [unset\] to [5\] at (0) should be [unset\]]
-    expected: FAIL
-
-  [CSS Animations: property <z-index> from [auto\] to [10\] at (-0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Animations: property <z-index> from [initial\] to [5\] at (0.3) should be [initial\]]
-    expected: FAIL
-
   [Web Animations: property <z-index> from [auto\] to [10\] at (1) should be [10\]]
     expected: FAIL
 
   [Web Animations: property <z-index> from [initial\] to [5\] at (-0.3) should be [initial\]]
     expected: FAIL
 
-  [CSS Animations: property <z-index> from [auto\] to [10\] at (0.6) should be [10\]]
-    expected: FAIL
-
   [CSS Transitions: property <z-index> from [initial\] to [5\] at (-0.3) should be [initial\]]
     expected: FAIL
 
@@ -244,57 +181,3 @@
 
   [CSS Transitions: property <z-index> from [auto\] to [10\] at (0.3) should be [auto\]]
     expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <z-index> from [initial\] to [5\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <z-index> from [initial\] to [5\] at (0) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <z-index> from [initial\] to [5\] at (0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <z-index> from [initial\] to [5\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <z-index> from [initial\] to [5\] at (0) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <z-index> from [initial\] to [5\] at (0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <z-index> from [unset\] to [5\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <z-index> from [unset\] to [5\] at (0) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <z-index> from [unset\] to [5\] at (0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <z-index> from [unset\] to [5\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <z-index> from [unset\] to [5\] at (0) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <z-index> from [unset\] to [5\] at (0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <z-index> from [auto\] to [10\] at (-0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <z-index> from [auto\] to [10\] at (0) should be [auto\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <z-index> from [auto\] to [10\] at (0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <z-index> from [auto\] to [10\] at (-0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <z-index> from [auto\] to [10\] at (0) should be [auto\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <z-index> from [auto\] to [10\] at (0.3) should be [auto\]]
-    expected: FAIL
diff --git a/tests/wpt/meta-legacy-layout/css/css-ui/interactivity-inert-focus.tentative.html.ini b/tests/wpt/meta-legacy-layout/css/css-ui/interactivity-inert-focus.tentative.html.ini
deleted file mode 100644
index 80f1879f2bf..00000000000
--- a/tests/wpt/meta-legacy-layout/css/css-ui/interactivity-inert-focus.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[interactivity-inert-focus.tentative.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta-legacy-layout/css/css-ui/parsing/interactivity-computed.tentative.html.ini b/tests/wpt/meta-legacy-layout/css/css-ui/parsing/interactivity-computed.tentative.html.ini
deleted file mode 100644
index a2f58805782..00000000000
--- a/tests/wpt/meta-legacy-layout/css/css-ui/parsing/interactivity-computed.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[interactivity-computed.tentative.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta-legacy-layout/css/css-ui/parsing/interactivity.tentative.html.ini b/tests/wpt/meta-legacy-layout/css/css-ui/parsing/interactivity.tentative.html.ini
deleted file mode 100644
index d1821eacb4d..00000000000
--- a/tests/wpt/meta-legacy-layout/css/css-ui/parsing/interactivity.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[interactivity.tentative.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta-legacy-layout/css/css-values/calc-size/animation/interpolate-size-logical-properties-interpolation.html.ini b/tests/wpt/meta-legacy-layout/css/css-values/calc-size/animation/interpolate-size-logical-properties-interpolation.html.ini
index 379c8195291..9dc7db6f3fd 100644
--- a/tests/wpt/meta-legacy-layout/css/css-values/calc-size/animation/interpolate-size-logical-properties-interpolation.html.ini
+++ b/tests/wpt/meta-legacy-layout/css/css-values/calc-size/animation/interpolate-size-logical-properties-interpolation.html.ini
@@ -41,9 +41,6 @@
   [CSS Animations: property <block-size> from [max-content\] to [25px\] at (0.6) should be [45px\]]
     expected: FAIL
 
-  [CSS Animations: property <block-size> from [max-content\] to [25px\] at (1) should be [25px\]]
-    expected: FAIL
-
   [CSS Animations: property <block-size> from [max-content\] to [25px\] at (1.5) should be [0px\]]
     expected: FAIL
 
@@ -343,3 +340,57 @@
 
   [Web Animations: property <min-inline-size> from neutral to [100px\] at (1.5) should be [calc-size(auto, 150px + size * -0.5)\]]
     expected: FAIL
+
+  [CSS Animations: property <max-block-size> from neutral to [fit-content\] at (0.6) should be [calc-size(fit-content, 40px + size * 0.6)\]]
+    expected: FAIL
+
+  [CSS Animations: property <max-block-size> from neutral to [fit-content\] at (1) should be [calc-size(fit-content, 0px + size * 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <max-block-size> from neutral to [fit-content\] at (1.5) should be [calc-size(fit-content, -50px + size * 1.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <max-inline-size> from [max-content\] to [100px\] at (-0.3) should be [calc-size(max-content, -30px + size * 1.3)\]]
+    expected: FAIL
+
+  [CSS Animations: property <max-inline-size> from [max-content\] to [100px\] at (0) should be [calc-size(max-content, 0px + size * 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <max-inline-size> from [max-content\] to [100px\] at (0.3) should be [calc-size(max-content, 30px + size * 0.7)\]]
+    expected: FAIL
+
+  [CSS Animations: property <max-inline-size> from [max-content\] to [100px\] at (0.6) should be [calc-size(max-content, 60px + size * 0.4)\]]
+    expected: FAIL
+
+  [CSS Animations: property <max-inline-size> from [max-content\] to [100px\] at (1) should be [calc-size(max-content, 100px + size * 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <max-inline-size> from [max-content\] to [100px\] at (1.5) should be [calc-size(max-content, 150px + size * -0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-block-size> from [200px\] to [min-content\] at (-0.3) should be [calc-size(min-content, 260px + size * -0.3)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-block-size> from [200px\] to [min-content\] at (0) should be [calc-size(min-content, 200px + size * 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-block-size> from [200px\] to [min-content\] at (0.3) should be [calc-size(min-content, 140px + size * 0.3)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-block-size> from [200px\] to [min-content\] at (0.6) should be [calc-size(min-content, 80px + size * 0.6)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-block-size> from [200px\] to [min-content\] at (1) should be [calc-size(min-content, 0px + size * 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-block-size> from [200px\] to [min-content\] at (1.5) should be [calc-size(min-content, -100px + size * 1.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-inline-size> from neutral to [100px\] at (0.6) should be [calc-size(auto, 60px + size * 0.4)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-inline-size> from neutral to [100px\] at (1) should be [calc-size(auto, 100px + size * 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-inline-size> from neutral to [100px\] at (1.5) should be [calc-size(auto, 150px + size * -0.5)\]]
+    expected: FAIL
diff --git a/tests/wpt/meta-legacy-layout/css/css-values/calc-size/animation/interpolate-size-max-height-interpolation.html.ini b/tests/wpt/meta-legacy-layout/css/css-values/calc-size/animation/interpolate-size-max-height-interpolation.html.ini
index 7ce4e81a18e..52247e9c16b 100644
--- a/tests/wpt/meta-legacy-layout/css/css-values/calc-size/animation/interpolate-size-max-height-interpolation.html.ini
+++ b/tests/wpt/meta-legacy-layout/css/css-values/calc-size/animation/interpolate-size-max-height-interpolation.html.ini
@@ -1,43 +1,4 @@
 [interpolate-size-max-height-interpolation.html]
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-height> from [initial\] to [20px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-height> from [initial\] to [20px\] at (0) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-height> from [initial\] to [20px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-height> from [initial\] to [20px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-height> from [initial\] to [20px\] at (0) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-height> from [initial\] to [20px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [initial\] to [20px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [initial\] to [20px\] at (0) should be [initial\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [initial\] to [20px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [initial\] to [20px\] at (0.5) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [initial\] to [20px\] at (0.6) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [initial\] to [20px\] at (1) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [initial\] to [20px\] at (1.5) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <max-height> from [initial\] to [20px\] at (-0.3) should be [initial\]]
     expected: FAIL
 
@@ -59,45 +20,6 @@
   [Web Animations: property <max-height> from [initial\] to [20px\] at (1.5) should be [20px\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-height> from [unset\] to [20px\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-height> from [unset\] to [20px\] at (0) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-height> from [unset\] to [20px\] at (0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-height> from [unset\] to [20px\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-height> from [unset\] to [20px\] at (0) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-height> from [unset\] to [20px\] at (0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [unset\] to [20px\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [unset\] to [20px\] at (0) should be [unset\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [unset\] to [20px\] at (0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [unset\] to [20px\] at (0.5) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [unset\] to [20px\] at (0.6) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [unset\] to [20px\] at (1) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [unset\] to [20px\] at (1.5) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <max-height> from [unset\] to [20px\] at (-0.3) should be [unset\]]
     expected: FAIL
 
@@ -119,45 +41,6 @@
   [Web Animations: property <max-height> from [unset\] to [20px\] at (1.5) should be [20px\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-height> from [none\] to [20px\] at (-0.3) should be [none\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-height> from [none\] to [20px\] at (0) should be [none\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-height> from [none\] to [20px\] at (0.3) should be [none\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-height> from [none\] to [20px\] at (-0.3) should be [none\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-height> from [none\] to [20px\] at (0) should be [none\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-height> from [none\] to [20px\] at (0.3) should be [none\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [none\] to [20px\] at (-0.3) should be [none\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [none\] to [20px\] at (0) should be [none\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [none\] to [20px\] at (0.3) should be [none\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [none\] to [20px\] at (0.5) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [none\] to [20px\] at (0.6) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [none\] to [20px\] at (1) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [none\] to [20px\] at (1.5) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <max-height> from [none\] to [20px\] at (-0.3) should be [none\]]
     expected: FAIL
 
@@ -179,45 +62,6 @@
   [Web Animations: property <max-height> from [none\] to [20px\] at (1.5) should be [20px\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-height> from [none\] to [max-content\] at (-0.3) should be [none\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-height> from [none\] to [max-content\] at (0) should be [none\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-height> from [none\] to [max-content\] at (0.3) should be [none\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-height> from [none\] to [max-content\] at (-0.3) should be [none\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-height> from [none\] to [max-content\] at (0) should be [none\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-height> from [none\] to [max-content\] at (0.3) should be [none\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [none\] to [max-content\] at (-0.3) should be [none\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [none\] to [max-content\] at (0) should be [none\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [none\] to [max-content\] at (0.3) should be [none\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [none\] to [max-content\] at (0.5) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [none\] to [max-content\] at (0.6) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [none\] to [max-content\] at (1) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [none\] to [max-content\] at (1.5) should be [max-content\]]
-    expected: FAIL
-
   [Web Animations: property <max-height> from [none\] to [max-content\] at (-0.3) should be [none\]]
     expected: FAIL
 
@@ -239,45 +83,6 @@
   [Web Animations: property <max-height> from [none\] to [max-content\] at (1.5) should be [max-content\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-height> from [stretch\] to [fit-content\] at (-0.3) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-height> from [stretch\] to [fit-content\] at (0) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-height> from [stretch\] to [fit-content\] at (0.3) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-height> from [stretch\] to [fit-content\] at (-0.3) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-height> from [stretch\] to [fit-content\] at (0) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-height> from [stretch\] to [fit-content\] at (0.3) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [stretch\] to [fit-content\] at (-0.3) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [stretch\] to [fit-content\] at (0) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [stretch\] to [fit-content\] at (0.3) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [stretch\] to [fit-content\] at (0.5) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [stretch\] to [fit-content\] at (0.6) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [stretch\] to [fit-content\] at (1) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-height> from [stretch\] to [fit-content\] at (1.5) should be [fit-content\]]
-    expected: FAIL
-
   [Web Animations: property <max-height> from [stretch\] to [fit-content\] at (-0.3) should be [stretch\]]
     expected: FAIL
 
@@ -424,3 +229,39 @@
 
   [Web Animations: property <max-height> from neutral to [max-content\] at (1.5) should be [calc-size(max-content, -50px + size * 1.5)\]]
     expected: FAIL
+
+  [CSS Animations: property <max-height> from [150px\] to [min-content\] at (-0.3) should be [calc-size(min-content, 195px + size * -0.3)\]]
+    expected: FAIL
+
+  [CSS Animations: property <max-height> from [150px\] to [min-content\] at (0) should be [calc-size(min-content, 150px + size * 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <max-height> from [150px\] to [min-content\] at (0.3) should be [calc-size(min-content, 105px + size * 0.3)\]]
+    expected: FAIL
+
+  [CSS Animations: property <max-height> from [150px\] to [min-content\] at (0.6) should be [calc-size(min-content, 60px + size * 0.6)\]]
+    expected: FAIL
+
+  [CSS Animations: property <max-height> from [150px\] to [min-content\] at (1) should be [calc-size(min-content, 0px + size * 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <max-height> from [150px\] to [min-content\] at (1.5) should be [calc-size(min-content, -75px + size * 1.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <max-height> from [min-content\] to neutral at (-0.3) should be [calc-size(min-content, -30px + size * 1.3)\]]
+    expected: FAIL
+
+  [CSS Animations: property <max-height> from [min-content\] to neutral at (0) should be [calc-size(min-content, 0px + size * 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <max-height> from [min-content\] to neutral at (0.3) should be [calc-size(min-content, 30px + size * 0.7)\]]
+    expected: FAIL
+
+  [CSS Animations: property <max-height> from neutral to [max-content\] at (0.6) should be [calc-size(max-content, 40px + size * 0.6)\]]
+    expected: FAIL
+
+  [CSS Animations: property <max-height> from neutral to [max-content\] at (1) should be [calc-size(max-content, 0px + size * 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <max-height> from neutral to [max-content\] at (1.5) should be [calc-size(max-content, -50px + size * 1.5)\]]
+    expected: FAIL
diff --git a/tests/wpt/meta-legacy-layout/css/css-values/calc-size/animation/interpolate-size-max-width-interpolation.html.ini b/tests/wpt/meta-legacy-layout/css/css-values/calc-size/animation/interpolate-size-max-width-interpolation.html.ini
index 19c91574c31..9aa817dd0e8 100644
--- a/tests/wpt/meta-legacy-layout/css/css-values/calc-size/animation/interpolate-size-max-width-interpolation.html.ini
+++ b/tests/wpt/meta-legacy-layout/css/css-values/calc-size/animation/interpolate-size-max-width-interpolation.html.ini
@@ -1,43 +1,4 @@
 [interpolate-size-max-width-interpolation.html]
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-width> from [initial\] to [20px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-width> from [initial\] to [20px\] at (0) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-width> from [initial\] to [20px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-width> from [initial\] to [20px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-width> from [initial\] to [20px\] at (0) should be [initial\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-width> from [initial\] to [20px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [initial\] to [20px\] at (-0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [initial\] to [20px\] at (0) should be [initial\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [initial\] to [20px\] at (0.3) should be [initial\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [initial\] to [20px\] at (0.5) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [initial\] to [20px\] at (0.6) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [initial\] to [20px\] at (1) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [initial\] to [20px\] at (1.5) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <max-width> from [initial\] to [20px\] at (-0.3) should be [initial\]]
     expected: FAIL
 
@@ -59,45 +20,6 @@
   [Web Animations: property <max-width> from [initial\] to [20px\] at (1.5) should be [20px\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-width> from [unset\] to [20px\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-width> from [unset\] to [20px\] at (0) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-width> from [unset\] to [20px\] at (0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-width> from [unset\] to [20px\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-width> from [unset\] to [20px\] at (0) should be [unset\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-width> from [unset\] to [20px\] at (0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [unset\] to [20px\] at (-0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [unset\] to [20px\] at (0) should be [unset\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [unset\] to [20px\] at (0.3) should be [unset\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [unset\] to [20px\] at (0.5) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [unset\] to [20px\] at (0.6) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [unset\] to [20px\] at (1) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [unset\] to [20px\] at (1.5) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <max-width> from [unset\] to [20px\] at (-0.3) should be [unset\]]
     expected: FAIL
 
@@ -119,45 +41,6 @@
   [Web Animations: property <max-width> from [unset\] to [20px\] at (1.5) should be [20px\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-width> from [none\] to [20px\] at (-0.3) should be [none\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-width> from [none\] to [20px\] at (0) should be [none\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-width> from [none\] to [20px\] at (0.3) should be [none\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-width> from [none\] to [20px\] at (-0.3) should be [none\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-width> from [none\] to [20px\] at (0) should be [none\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-width> from [none\] to [20px\] at (0.3) should be [none\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [none\] to [20px\] at (-0.3) should be [none\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [none\] to [20px\] at (0) should be [none\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [none\] to [20px\] at (0.3) should be [none\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [none\] to [20px\] at (0.5) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [none\] to [20px\] at (0.6) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [none\] to [20px\] at (1) should be [20px\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [none\] to [20px\] at (1.5) should be [20px\]]
-    expected: FAIL
-
   [Web Animations: property <max-width> from [none\] to [20px\] at (-0.3) should be [none\]]
     expected: FAIL
 
@@ -179,45 +62,6 @@
   [Web Animations: property <max-width> from [none\] to [20px\] at (1.5) should be [20px\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-width> from [stretch\] to [none\] at (-0.3) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-width> from [stretch\] to [none\] at (0) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-width> from [stretch\] to [none\] at (0.3) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-width> from [stretch\] to [none\] at (-0.3) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-width> from [stretch\] to [none\] at (0) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-width> from [stretch\] to [none\] at (0.3) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [stretch\] to [none\] at (-0.3) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [stretch\] to [none\] at (0) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [stretch\] to [none\] at (0.3) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [stretch\] to [none\] at (0.5) should be [none\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [stretch\] to [none\] at (0.6) should be [none\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [stretch\] to [none\] at (1) should be [none\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [stretch\] to [none\] at (1.5) should be [none\]]
-    expected: FAIL
-
   [Web Animations: property <max-width> from [stretch\] to [none\] at (-0.3) should be [stretch\]]
     expected: FAIL
 
@@ -293,45 +137,6 @@
   [Web Animations: property <max-width> from [fit-content\] to [50px\] at (1.5) should be [calc-size(fit-content, 75px + size * -0.5)\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-width> from [max-content\] to [min-content\] at (-0.3) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-width> from [max-content\] to [min-content\] at (0) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <max-width> from [max-content\] to [min-content\] at (0.3) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-width> from [max-content\] to [min-content\] at (-0.3) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-width> from [max-content\] to [min-content\] at (0) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <max-width> from [max-content\] to [min-content\] at (0.3) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [max-content\] to [min-content\] at (-0.3) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [max-content\] to [min-content\] at (0) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [max-content\] to [min-content\] at (0.3) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [max-content\] to [min-content\] at (0.5) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [max-content\] to [min-content\] at (0.6) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [max-content\] to [min-content\] at (1) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <max-width> from [max-content\] to [min-content\] at (1.5) should be [min-content\]]
-    expected: FAIL
-
   [Web Animations: property <max-width> from [max-content\] to [min-content\] at (-0.3) should be [max-content\]]
     expected: FAIL
 
@@ -424,3 +229,39 @@
 
   [Web Animations: property <max-width> from neutral to [fit-content\] at (1.5) should be [calc-size(fit-content, -75px + size * 1.5)\]]
     expected: FAIL
+
+  [CSS Animations: property <max-width> from [fit-content\] to [50px\] at (-0.3) should be [calc-size(fit-content, -15px + size * 1.3)\]]
+    expected: FAIL
+
+  [CSS Animations: property <max-width> from [fit-content\] to [50px\] at (0) should be [calc-size(fit-content, 0px + size * 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <max-width> from [fit-content\] to [50px\] at (0.3) should be [calc-size(fit-content, 15px + size * 0.7)\]]
+    expected: FAIL
+
+  [CSS Animations: property <max-width> from [fit-content\] to [50px\] at (0.6) should be [calc-size(fit-content, 30px + size * 0.4)\]]
+    expected: FAIL
+
+  [CSS Animations: property <max-width> from [fit-content\] to [50px\] at (1) should be [calc-size(fit-content, 50px + size * 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <max-width> from [fit-content\] to [50px\] at (1.5) should be [calc-size(fit-content, 75px + size * -0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <max-width> from [min-content\] to neutral at (-0.3) should be [calc-size(min-content, -45px + size * 1.3)\]]
+    expected: FAIL
+
+  [CSS Animations: property <max-width> from [min-content\] to neutral at (0) should be [calc-size(min-content, 0px + size * 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <max-width> from [min-content\] to neutral at (0.3) should be [calc-size(min-content, 45px + size * 0.7)\]]
+    expected: FAIL
+
+  [CSS Animations: property <max-width> from neutral to [fit-content\] at (0.6) should be [calc-size(fit-content, 60px + size * 0.6)\]]
+    expected: FAIL
+
+  [CSS Animations: property <max-width> from neutral to [fit-content\] at (1) should be [calc-size(fit-content, 0px + size * 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <max-width> from neutral to [fit-content\] at (1.5) should be [calc-size(fit-content, -75px + size * 1.5)\]]
+    expected: FAIL
diff --git a/tests/wpt/meta-legacy-layout/css/css-values/calc-size/animation/interpolate-size-min-height-interpolation.html.ini b/tests/wpt/meta-legacy-layout/css/css-values/calc-size/animation/interpolate-size-min-height-interpolation.html.ini
index 77ad852894f..c6879fbd371 100644
--- a/tests/wpt/meta-legacy-layout/css/css-values/calc-size/animation/interpolate-size-min-height-interpolation.html.ini
+++ b/tests/wpt/meta-legacy-layout/css/css-values/calc-size/animation/interpolate-size-min-height-interpolation.html.ini
@@ -215,45 +215,6 @@
   [Web Animations: property <min-height> from [auto\] to [0px\] at (1.5) should be [calc-size(auto, 0px + size * -0.5)\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-height> from [fit-content\] to [min-content\] at (-0.3) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-height> from [fit-content\] to [min-content\] at (0) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-height> from [fit-content\] to [min-content\] at (0.3) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-height> from [fit-content\] to [min-content\] at (-0.3) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-height> from [fit-content\] to [min-content\] at (0) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-height> from [fit-content\] to [min-content\] at (0.3) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [fit-content\] to [min-content\] at (-0.3) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [fit-content\] to [min-content\] at (0) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [fit-content\] to [min-content\] at (0.3) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [fit-content\] to [min-content\] at (0.5) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [fit-content\] to [min-content\] at (0.6) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [fit-content\] to [min-content\] at (1) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [fit-content\] to [min-content\] at (1.5) should be [min-content\]]
-    expected: FAIL
-
   [Web Animations: property <min-height> from [fit-content\] to [min-content\] at (-0.3) should be [fit-content\]]
     expected: FAIL
 
@@ -275,45 +236,6 @@
   [Web Animations: property <min-height> from [fit-content\] to [min-content\] at (1.5) should be [min-content\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-height> from [max-content\] to [stretch\] at (-0.3) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-height> from [max-content\] to [stretch\] at (0) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-height> from [max-content\] to [stretch\] at (0.3) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-height> from [max-content\] to [stretch\] at (-0.3) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-height> from [max-content\] to [stretch\] at (0) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-height> from [max-content\] to [stretch\] at (0.3) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [max-content\] to [stretch\] at (-0.3) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [max-content\] to [stretch\] at (0) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [max-content\] to [stretch\] at (0.3) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [max-content\] to [stretch\] at (0.5) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [max-content\] to [stretch\] at (0.6) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [max-content\] to [stretch\] at (1) should be [stretch\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-height> from [max-content\] to [stretch\] at (1.5) should be [stretch\]]
-    expected: FAIL
-
   [Web Animations: property <min-height> from [max-content\] to [stretch\] at (-0.3) should be [max-content\]]
     expected: FAIL
 
@@ -406,3 +328,93 @@
 
   [Web Animations: property <min-height> from neutral to [min-content\] at (1.5) should be [calc-size(min-content, -5px + size * 1.5)\]]
     expected: FAIL
+
+  [CSS Animations: property <min-height> from [initial\] to [20px\] at (-0.3) should be [calc-size(auto, -6px + size * 1.3)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-height> from [initial\] to [20px\] at (0) should be [calc-size(auto, 0px + size * 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-height> from [initial\] to [20px\] at (0.3) should be [calc-size(auto, 6px + size * 0.7)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-height> from [initial\] to [20px\] at (0.6) should be [calc-size(auto, 12px + size * 0.4)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-height> from [initial\] to [20px\] at (1) should be [calc-size(auto, 20px + size * 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-height> from [initial\] to [20px\] at (1.5) should be [calc-size(auto, 30px + size * -0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-height> from [unset\] to [20px\] at (-0.3) should be [calc-size(auto, -6px + size * 1.3)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-height> from [unset\] to [20px\] at (0) should be [calc-size(auto, 0px + size * 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-height> from [unset\] to [20px\] at (0.3) should be [calc-size(auto, 6px + size * 0.7)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-height> from [unset\] to [20px\] at (0.6) should be [calc-size(auto, 12px + size * 0.4)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-height> from [unset\] to [20px\] at (1) should be [calc-size(auto, 20px + size * 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-height> from [unset\] to [20px\] at (1.5) should be [calc-size(auto, 30px + size * -0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-height> from [auto\] to [20px\] at (-0.3) should be [calc-size(auto, -6px + size * 1.3)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-height> from [auto\] to [20px\] at (0) should be [calc-size(auto, 0px + size * 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-height> from [auto\] to [20px\] at (0.3) should be [calc-size(auto, 6px + size * 0.7)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-height> from [auto\] to [20px\] at (0.6) should be [calc-size(auto, 12px + size * 0.4)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-height> from [auto\] to [20px\] at (1) should be [calc-size(auto, 20px + size * 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-height> from [auto\] to [20px\] at (1.5) should be [calc-size(auto, 30px + size * -0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-height> from [auto\] to [0px\] at (-0.3) should be [calc-size(auto, 0px + size * 1.3)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-height> from [auto\] to [0px\] at (0) should be [calc-size(auto, 0px + size * 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-height> from [auto\] to [0px\] at (0.3) should be [calc-size(auto, 0px + size * 0.7)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-height> from [auto\] to [0px\] at (0.6) should be [calc-size(auto, 0px + size * 0.4)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-height> from [auto\] to [0px\] at (1) should be [calc-size(auto, 0px + size * 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-height> from [auto\] to [0px\] at (1.5) should be [calc-size(auto, 0px + size * -0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-height> from [fit-content\] to neutral at (-0.3) should be [calc-size(fit-content, -3px + size * 1.3)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-height> from [fit-content\] to neutral at (0) should be [calc-size(fit-content, 0px + size * 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-height> from [fit-content\] to neutral at (0.3) should be [calc-size(fit-content, 3px + size * 0.7)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-height> from neutral to [min-content\] at (0.6) should be [calc-size(min-content, 4px + size * 0.6)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-height> from neutral to [min-content\] at (1) should be [calc-size(min-content, 0px + size * 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-height> from neutral to [min-content\] at (1.5) should be [calc-size(min-content, -5px + size * 1.5)\]]
+    expected: FAIL
diff --git a/tests/wpt/meta-legacy-layout/css/css-values/calc-size/animation/interpolate-size-min-width-interpolation.html.ini b/tests/wpt/meta-legacy-layout/css/css-values/calc-size/animation/interpolate-size-min-width-interpolation.html.ini
index b4da72f0f64..000ea7955f4 100644
--- a/tests/wpt/meta-legacy-layout/css/css-values/calc-size/animation/interpolate-size-min-width-interpolation.html.ini
+++ b/tests/wpt/meta-legacy-layout/css/css-values/calc-size/animation/interpolate-size-min-width-interpolation.html.ini
@@ -215,45 +215,6 @@
   [Web Animations: property <min-width> from [0px\] to [stretch\] at (1.5) should be [calc-size(stretch, 0px + size * 1.5)\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-width> from [min-content\] to [fit-content\] at (-0.3) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-width> from [min-content\] to [fit-content\] at (0) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-width> from [min-content\] to [fit-content\] at (0.3) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-width> from [min-content\] to [fit-content\] at (-0.3) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-width> from [min-content\] to [fit-content\] at (0) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-width> from [min-content\] to [fit-content\] at (0.3) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [min-content\] to [fit-content\] at (-0.3) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [min-content\] to [fit-content\] at (0) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [min-content\] to [fit-content\] at (0.3) should be [min-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [min-content\] to [fit-content\] at (0.5) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [min-content\] to [fit-content\] at (0.6) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [min-content\] to [fit-content\] at (1) should be [fit-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [min-content\] to [fit-content\] at (1.5) should be [fit-content\]]
-    expected: FAIL
-
   [Web Animations: property <min-width> from [min-content\] to [fit-content\] at (-0.3) should be [min-content\]]
     expected: FAIL
 
@@ -275,45 +236,6 @@
   [Web Animations: property <min-width> from [min-content\] to [fit-content\] at (1.5) should be [fit-content\]]
     expected: FAIL
 
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-width> from [auto\] to [max-content\] at (-0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-width> from [auto\] to [max-content\] at (0) should be [auto\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <min-width> from [auto\] to [max-content\] at (0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-width> from [auto\] to [max-content\] at (-0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-width> from [auto\] to [max-content\] at (0) should be [auto\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <min-width> from [auto\] to [max-content\] at (0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [auto\] to [max-content\] at (-0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [auto\] to [max-content\] at (0) should be [auto\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [auto\] to [max-content\] at (0.3) should be [auto\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [auto\] to [max-content\] at (0.5) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [auto\] to [max-content\] at (0.6) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [auto\] to [max-content\] at (1) should be [max-content\]]
-    expected: FAIL
-
-  [CSS Animations: property <min-width> from [auto\] to [max-content\] at (1.5) should be [max-content\]]
-    expected: FAIL
-
   [Web Animations: property <min-width> from [auto\] to [max-content\] at (-0.3) should be [auto\]]
     expected: FAIL
 
@@ -406,3 +328,93 @@
 
   [Web Animations: property <min-width> from neutral to [max-content\] at (1.5) should be [calc-size(max-content, -5px + size * 1.5)\]]
     expected: FAIL
+
+  [CSS Animations: property <min-width> from [initial\] to [20px\] at (-0.3) should be [calc-size(auto, -6px + size * 1.3)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-width> from [initial\] to [20px\] at (0) should be [calc-size(auto, 0px + size * 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-width> from [initial\] to [20px\] at (0.3) should be [calc-size(auto, 6px + size * 0.7)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-width> from [initial\] to [20px\] at (0.6) should be [calc-size(auto, 12px + size * 0.4)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-width> from [initial\] to [20px\] at (1) should be [calc-size(auto, 20px + size * 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-width> from [initial\] to [20px\] at (1.5) should be [calc-size(auto, 30px + size * -0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-width> from [unset\] to [20px\] at (-0.3) should be [calc-size(auto, -6px + size * 1.3)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-width> from [unset\] to [20px\] at (0) should be [calc-size(auto, 0px + size * 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-width> from [unset\] to [20px\] at (0.3) should be [calc-size(auto, 6px + size * 0.7)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-width> from [unset\] to [20px\] at (0.6) should be [calc-size(auto, 12px + size * 0.4)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-width> from [unset\] to [20px\] at (1) should be [calc-size(auto, 20px + size * 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-width> from [unset\] to [20px\] at (1.5) should be [calc-size(auto, 30px + size * -0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-width> from [auto\] to [20px\] at (-0.3) should be [calc-size(auto, -6px + size * 1.3)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-width> from [auto\] to [20px\] at (0) should be [calc-size(auto, 0px + size * 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-width> from [auto\] to [20px\] at (0.3) should be [calc-size(auto, 6px + size * 0.7)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-width> from [auto\] to [20px\] at (0.6) should be [calc-size(auto, 12px + size * 0.4)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-width> from [auto\] to [20px\] at (1) should be [calc-size(auto, 20px + size * 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-width> from [auto\] to [20px\] at (1.5) should be [calc-size(auto, 30px + size * -0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-width> from [0px\] to [stretch\] at (-0.3) should be [calc-size(stretch, 0px + size * -0.3)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-width> from [0px\] to [stretch\] at (0) should be [calc-size(stretch, 0px + size * 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-width> from [0px\] to [stretch\] at (0.3) should be [calc-size(stretch, 0px + size * 0.3)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-width> from [0px\] to [stretch\] at (0.6) should be [calc-size(stretch, 0px + size * 0.6)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-width> from [0px\] to [stretch\] at (1) should be [calc-size(stretch, 0px + size * 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-width> from [0px\] to [stretch\] at (1.5) should be [calc-size(stretch, 0px + size * 1.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-width> from [fit-content\] to neutral at (-0.3) should be [calc-size(fit-content, -3px + size * 1.3)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-width> from [fit-content\] to neutral at (0) should be [calc-size(fit-content, 0px + size * 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-width> from [fit-content\] to neutral at (0.3) should be [calc-size(fit-content, 3px + size * 0.7)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-width> from neutral to [max-content\] at (0.6) should be [calc-size(max-content, 4px + size * 0.6)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-width> from neutral to [max-content\] at (1) should be [calc-size(max-content, 0px + size * 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <min-width> from neutral to [max-content\] at (1.5) should be [calc-size(max-content, -5px + size * 1.5)\]]
+    expected: FAIL
diff --git a/tests/wpt/meta-legacy-layout/css/css-values/calc-size/animation/interpolate-size-which-value.html.ini b/tests/wpt/meta-legacy-layout/css/css-values/calc-size/animation/interpolate-size-which-value.html.ini
index a2e6b16879a..d6ab6f4e430 100644
--- a/tests/wpt/meta-legacy-layout/css/css-values/calc-size/animation/interpolate-size-which-value.html.ini
+++ b/tests/wpt/meta-legacy-layout/css/css-values/calc-size/animation/interpolate-size-which-value.html.ini
@@ -2,9 +2,6 @@
   [Use the after-change value of interpolate-size: numeric-only when starting CSS transition from 100px to min-content]
     expected: FAIL
 
-  [Use the non-animation value of interpolate-size: numeric-only when starting CSS animation from 100px to min-content]
-    expected: FAIL
-
   [Use the after-change value of interpolate-size: numeric-only when starting CSS transition from min-content to 100px]
     expected: FAIL
 
diff --git a/tests/wpt/meta-legacy-layout/css/cssom/cssom-pagerule.html.ini b/tests/wpt/meta-legacy-layout/css/cssom/cssom-pagerule.html.ini
index a8608187143..5a69af55729 100644
--- a/tests/wpt/meta-legacy-layout/css/cssom/cssom-pagerule.html.ini
+++ b/tests/wpt/meta-legacy-layout/css/cssom/cssom-pagerule.html.ini
@@ -34,3 +34,33 @@
 
   [Cannot set selectorText to invalid pseudo page]
     expected: FAIL
+
+  [Page selector 'cssText' is initially the @page { }]
+    expected: FAIL
+
+  [Set cssText to :left pseudo page]
+    expected: FAIL
+
+  [Set cssText to named page]
+    expected: FAIL
+
+  [Set cssText to named page with :first pseudo page]
+    expected: FAIL
+
+  [Set cssText to named page with case insensitive :first pseudo page]
+    expected: FAIL
+
+  [Set cssText to named page with two :first pseudo page]
+    expected: FAIL
+
+  [Set cssText to named page with pseudo pages of :first, :left, :right, :first in order.]
+    expected: FAIL
+
+  [Cannot set cssText to named page with pseudo, whitespace between - return default @page { }]
+    expected: FAIL
+
+  [Cannot set cssText to two pseudos, whitespace between - return default @page { }]
+    expected: FAIL
+
+  [Cannot set cssText to invalid pseudo page - return default @page { }]
+    expected: FAIL
diff --git a/tests/wpt/meta-legacy-layout/css/filter-effects/animation/filter-interpolation-002.html.ini b/tests/wpt/meta-legacy-layout/css/filter-effects/animation/filter-interpolation-002.html.ini
index 4dbc11e7164..f8c815055b8 100644
--- a/tests/wpt/meta-legacy-layout/css/filter-effects/animation/filter-interpolation-002.html.ini
+++ b/tests/wpt/meta-legacy-layout/css/filter-effects/animation/filter-interpolation-002.html.ini
@@ -68,9 +68,6 @@
   [Web Animations: property <filter> from [hue-rotate(180deg)\] to [none\] at (0) should be [hue-rotate(180deg)\]]
     expected: FAIL
 
-  [CSS Animations: property <filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (0.6) should be [blur(10px)\]]
-    expected: FAIL
-
   [Web Animations: property <filter> from [none\] to [hue-rotate(180deg)\] at (0.25) should be [hue-rotate(45deg)\]]
     expected: FAIL
 
@@ -104,9 +101,6 @@
   [Web Animations: property <filter> from [drop-shadow(0px 0px 0px currentcolor)\] to [drop-shadow(20px 10px green)\] at (0) should be [drop-shadow(0px 0px 0px currentcolor)\]]
     expected: FAIL
 
-  [CSS Animations: property <filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (1.5) should be [blur(10px)\]]
-    expected: FAIL
-
   [CSS Transitions: property <filter> from [drop-shadow(20px 10px blue)\] to [drop-shadow(20px 10px green)\] at (2147483648) should be [drop-shadow(20px 10px #00FF00\]]
     expected: FAIL
 
@@ -122,12 +116,6 @@
   [Web Animations: property <filter> from [none\] to [opacity(0.5) hue-rotate(180deg)\] at (-0.5) should be [opacity(1) hue-rotate(-90deg)\]]
     expected: FAIL
 
-  [CSS Animations: property <filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (0.3) should be [grayscale(0) blur(0px)\]]
-    expected: FAIL
-
-  [CSS Animations: property <filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (0) should be [grayscale(0) blur(0px)\]]
-    expected: FAIL
-
   [Web Animations: property <filter> from [hue-rotate(180deg)\] to [none\] at (1.5) should be [hue-rotate(-90deg)\]]
     expected: FAIL
 
@@ -140,18 +128,12 @@
   [Web Animations: property <filter> from [blur(6px)\] to [blur(10px) hue-rotate(180deg)\] at (-0.5) should be [blur(4px) hue-rotate(-90deg)\]]
     expected: FAIL
 
-  [CSS Animations: property <filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (-0.3) should be [grayscale(0) blur(0px)\]]
-    expected: FAIL
-
   [Web Animations: property <filter> from [blur(6px)\] to [blur(10px) hue-rotate(180deg)\] at (0.5) should be [blur(8px) hue-rotate(90deg)\]]
     expected: FAIL
 
   [Web Animations: property <filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (0.6) should be [blur(10px)\]]
     expected: FAIL
 
-  [CSS Animations: property <filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (0.5) should be [blur(10px)\]]
-    expected: FAIL
-
   [Web Animations: property <filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (0.3) should be [grayscale(0) blur(0px)\]]
     expected: FAIL
 
@@ -173,9 +155,6 @@
   [Web Animations: property <filter> from [drop-shadow(0px 0px 0px currentcolor)\] to [drop-shadow(20px 10px green)\] at (-1) should be [drop-shadow(-20px -10px white)\]]
     expected: FAIL
 
-  [CSS Animations: property <filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (1) should be [blur(10px)\]]
-    expected: FAIL
-
   [Web Animations: property <filter> from [blur(6px)\] to [blur(10px) hue-rotate(180deg)\] at (1.5) should be [blur(12px) hue-rotate(270deg)\]]
     expected: FAIL
 
@@ -199,21 +178,3 @@
 
   [CSS Transitions: property <filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (0.3) should be [grayscale(0) blur(0px)\]]
     expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (-0.3) should be [grayscale(0) blur(0px)\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (0) should be [grayscale(0) blur(0px)\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-behavior:allow-discrete: property <filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (0.3) should be [grayscale(0) blur(0px)\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (-0.3) should be [grayscale(0) blur(0px)\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (0) should be [grayscale(0) blur(0px)\]]
-    expected: FAIL
-
-  [CSS Transitions with transition-property:all and transition-behavor:allow-discrete: property <filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (0.3) should be [grayscale(0) blur(0px)\]]
-    expected: FAIL
diff --git a/tests/wpt/meta-legacy-layout/css/selectors/parsing/parse-slotted.html.ini b/tests/wpt/meta-legacy-layout/css/selectors/parsing/parse-slotted.html.ini
index 62fae425194..9396ed6dae8 100644
--- a/tests/wpt/meta-legacy-layout/css/selectors/parsing/parse-slotted.html.ini
+++ b/tests/wpt/meta-legacy-layout/css/selectors/parsing/parse-slotted.html.ini
@@ -22,3 +22,6 @@
 
   ["::slotted(:hover)" should be a valid selector]
     expected: FAIL
+
+  ["::slotted(:has(:first-child:last-child))" should be a valid selector]
+    expected: FAIL
diff --git a/tests/wpt/meta-legacy-layout/custom-elements/reactions/Element.html.ini b/tests/wpt/meta-legacy-layout/custom-elements/reactions/Element.html.ini
deleted file mode 100644
index 89e0c322ef1..00000000000
--- a/tests/wpt/meta-legacy-layout/custom-elements/reactions/Element.html.ini
+++ /dev/null
@@ -1,8 +0,0 @@
-[Element.html]
-  type: testharness
-  [slot on Element must enqueue an attributeChanged reaction when adding slot content attribute]
-    expected: FAIL
-
-  [slot on Element must enqueue an attributeChanged reaction when replacing an existing attribute]
-    expected: FAIL
-
diff --git a/tests/wpt/meta-legacy-layout/dom/idlharness.window.js.ini b/tests/wpt/meta-legacy-layout/dom/idlharness.window.js.ini
index 1eb7170480d..799a5e9a975 100644
--- a/tests/wpt/meta-legacy-layout/dom/idlharness.window.js.ini
+++ b/tests/wpt/meta-legacy-layout/dom/idlharness.window.js.ini
@@ -83,9 +83,6 @@
   [Element interface: element must inherit property "attachShadow(ShadowRootInit)" with the proper type]
     expected: FAIL
 
-  [Element interface: element must inherit property "slot" with the proper type]
-    expected: FAIL
-
   [AbortController interface: new AbortController() must inherit property "signal" with the proper type]
     expected: FAIL
 
@@ -440,9 +437,6 @@
   [XPathExpression interface: existence and properties of interface prototype object's @@unscopables property]
     expected: FAIL
 
-  [ShadowRoot interface: attribute onslotchange]
-    expected: FAIL
-
   [XPathExpression interface: document.createExpression("//*") must inherit property "evaluate(Node, optional unsigned short, optional XPathResult?)" with the proper type]
     expected: FAIL
 
diff --git a/tests/wpt/meta-legacy-layout/dom/observable/tentative/observable-from.any.js.ini b/tests/wpt/meta-legacy-layout/dom/observable/tentative/observable-from.any.js.ini
index 684e7b1aefc..82405955eaa 100644
--- a/tests/wpt/meta-legacy-layout/dom/observable/tentative/observable-from.any.js.ini
+++ b/tests/wpt/meta-legacy-layout/dom/observable/tentative/observable-from.any.js.ini
@@ -140,6 +140,12 @@
   [from(): [Symbol.iterator\] returns null AFTER SUBSCRIBE throws]
     expected: FAIL
 
+  [Invalid async iterator protocol error is surfaced before Subscriber#signal is consulted]
+    expected: FAIL
+
+  [Invalid iterator protocol error is surfaced before Subscriber#signal is consulted]
+    expected: FAIL
+
 
 [observable-from.any.worker.html]
   [from(): Observable.from() is a function]
@@ -282,3 +288,9 @@
 
   [from(): [Symbol.iterator\] returns null AFTER SUBSCRIBE throws]
     expected: FAIL
+
+  [Invalid async iterator protocol error is surfaced before Subscriber#signal is consulted]
+    expected: FAIL
+
+  [Invalid iterator protocol error is surfaced before Subscriber#signal is consulted]
+    expected: FAIL
diff --git a/tests/wpt/meta-legacy-layout/fetch/api/response/json.any.js.ini b/tests/wpt/meta-legacy-layout/fetch/api/response/json.any.js.ini
deleted file mode 100644
index fabc405f495..00000000000
--- a/tests/wpt/meta-legacy-layout/fetch/api/response/json.any.js.ini
+++ /dev/null
@@ -1,8 +0,0 @@
-[json.any.html]
-  [Ensure the correct JSON parser is used]
-    expected: FAIL
-
-
-[json.any.worker.html]
-  [Ensure the correct JSON parser is used]
-    expected: FAIL
diff --git a/tests/wpt/meta-legacy-layout/fetch/fetch-later/quota.tentative.https.window.js.ini b/tests/wpt/meta-legacy-layout/fetch/fetch-later/quota.tentative.https.window.js.ini
deleted file mode 100644
index c27d071ac18..00000000000
--- a/tests/wpt/meta-legacy-layout/fetch/fetch-later/quota.tentative.https.window.js.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[quota.tentative.https.window.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta-legacy-layout/fetch/metadata/generated/css-font-face.sub.tentative.html.ini b/tests/wpt/meta-legacy-layout/fetch/metadata/generated/css-font-face.sub.tentative.html.ini
index 27d4c7ee611..f71bc17f66d 100644
--- a/tests/wpt/meta-legacy-layout/fetch/metadata/generated/css-font-face.sub.tentative.html.ini
+++ b/tests/wpt/meta-legacy-layout/fetch/metadata/generated/css-font-face.sub.tentative.html.ini
@@ -41,8 +41,5 @@
   [sec-fetch-storage-access - Not sent to non-trustworthy same-site destination]
     expected: FAIL
 
-  [sec-fetch-user - Not sent to non-trustworthy same-site destination]
-    expected: FAIL
-
   [sec-fetch-mode - Not sent to non-trustworthy same-site destination]
     expected: FAIL
diff --git a/tests/wpt/meta-legacy-layout/fetch/metadata/generated/element-picture.https.sub.html.ini b/tests/wpt/meta-legacy-layout/fetch/metadata/generated/element-picture.https.sub.html.ini
index d4b40a4344f..f32e048f45f 100644
--- a/tests/wpt/meta-legacy-layout/fetch/metadata/generated/element-picture.https.sub.html.ini
+++ b/tests/wpt/meta-legacy-layout/fetch/metadata/generated/element-picture.https.sub.html.ini
@@ -73,3 +73,6 @@
 
   [sec-fetch-mode - source[srcset\] - attributes: crossorigin=anonymous]
     expected: FAIL
+
+  [sec-fetch-mode - source[srcset\] - attributes: crossorigin=use-credentials]
+    expected: FAIL
diff --git a/tests/wpt/meta-legacy-layout/html/browsers/browsing-the-web/navigating-across-documents/initial-empty-document/iframe-nosrc.html.ini b/tests/wpt/meta-legacy-layout/html/browsers/browsing-the-web/navigating-across-documents/initial-empty-document/iframe-nosrc.html.ini
index 02a8e91ea04..d5f4fa2f799 100644
--- a/tests/wpt/meta-legacy-layout/html/browsers/browsing-the-web/navigating-across-documents/initial-empty-document/iframe-nosrc.html.ini
+++ b/tests/wpt/meta-legacy-layout/html/browsers/browsing-the-web/navigating-across-documents/initial-empty-document/iframe-nosrc.html.ini
@@ -2,8 +2,5 @@
   [window.open]
     expected: FAIL
 
-  [link click]
-    expected: FAIL
-
   [form submission]
     expected: FAIL
diff --git a/tests/wpt/meta-legacy-layout/html/browsers/browsing-the-web/navigating-across-documents/initial-empty-document/load-pageshow-events-window-open.html.ini b/tests/wpt/meta-legacy-layout/html/browsers/browsing-the-web/navigating-across-documents/initial-empty-document/load-pageshow-events-window-open.html.ini
index 324db3d9b35..5aef7ce66ce 100644
--- a/tests/wpt/meta-legacy-layout/html/browsers/browsing-the-web/navigating-across-documents/initial-empty-document/load-pageshow-events-window-open.html.ini
+++ b/tests/wpt/meta-legacy-layout/html/browsers/browsing-the-web/navigating-across-documents/initial-empty-document/load-pageshow-events-window-open.html.ini
@@ -10,3 +10,6 @@
 
   [load event does not fire on window.open('about:blank?foo')]
     expected: FAIL
+
+  [load event does not fire on window.open('about:blank')]
+    expected: FAIL
diff --git a/tests/wpt/meta-legacy-layout/html/browsers/browsing-the-web/navigating-across-documents/navigation-unload-cross-origin.sub.window.js.ini b/tests/wpt/meta-legacy-layout/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-legacy-layout/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-legacy-layout/html/browsers/browsing-the-web/navigating-across-documents/replace-before-load/a-click.html.ini b/tests/wpt/meta-legacy-layout/html/browsers/browsing-the-web/navigating-across-documents/replace-before-load/a-click.html.ini
deleted file mode 100644
index 60a4fa51f8a..00000000000
--- a/tests/wpt/meta-legacy-layout/html/browsers/browsing-the-web/navigating-across-documents/replace-before-load/a-click.html.ini
+++ /dev/null
@@ -1,3 +0,0 @@
-[a-click.html]
-  [aElement.click() before the load event must NOT replace]
-    expected: FAIL
diff --git a/tests/wpt/meta-legacy-layout/html/browsers/history/the-history-interface/traverse_the_history_2.html.ini b/tests/wpt/meta-legacy-layout/html/browsers/history/the-history-interface/traverse_the_history_2.html.ini
deleted file mode 100644
index 5d17a8e9419..00000000000
--- a/tests/wpt/meta-legacy-layout/html/browsers/history/the-history-interface/traverse_the_history_2.html.ini
+++ /dev/null
@@ -1,3 +0,0 @@
-[traverse_the_history_2.html]
-  [Multiple history traversals, last would be aborted]
-    expected: FAIL
diff --git a/tests/wpt/meta-legacy-layout/html/canvas/element/manual/imagebitmap/createImageBitmap-serializable.html.ini b/tests/wpt/meta-legacy-layout/html/canvas/element/manual/imagebitmap/createImageBitmap-serializable.html.ini
index 7616121487c..ea398e580ef 100644
--- a/tests/wpt/meta-legacy-layout/html/canvas/element/manual/imagebitmap/createImageBitmap-serializable.html.ini
+++ b/tests/wpt/meta-legacy-layout/html/canvas/element/manual/imagebitmap/createImageBitmap-serializable.html.ini
@@ -1,5 +1,5 @@
 [createImageBitmap-serializable.html]
-  expected: TIMEOUT
+  expected: ERROR
   [Serialize ImageBitmap created from a vector SVGImageElement]
     expected: NOTRUN
 
diff --git a/tests/wpt/meta-legacy-layout/html/canvas/element/text/2d.text.measure.caret-position-edge-cases.tentative.html.ini b/tests/wpt/meta-legacy-layout/html/canvas/element/text/2d.text.measure.caret-position-edge-cases.tentative.html.ini
deleted file mode 100644
index dc8137a3a4e..00000000000
--- a/tests/wpt/meta-legacy-layout/html/canvas/element/text/2d.text.measure.caret-position-edge-cases.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[2d.text.measure.caret-position-edge-cases.tentative.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta-legacy-layout/html/canvas/element/text/2d.text.measure.caret-position-edges.tentative.html.ini b/tests/wpt/meta-legacy-layout/html/canvas/element/text/2d.text.measure.caret-position-edges.tentative.html.ini
deleted file mode 100644
index c1d026a098f..00000000000
--- a/tests/wpt/meta-legacy-layout/html/canvas/element/text/2d.text.measure.caret-position-edges.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[2d.text.measure.caret-position-edges.tentative.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta-legacy-layout/html/canvas/element/text/2d.text.measure.caret-position.tentative.html.ini b/tests/wpt/meta-legacy-layout/html/canvas/element/text/2d.text.measure.caret-position.tentative.html.ini
deleted file mode 100644
index 51ffef6397a..00000000000
--- a/tests/wpt/meta-legacy-layout/html/canvas/element/text/2d.text.measure.caret-position.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[2d.text.measure.caret-position.tentative.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta-legacy-layout/html/canvas/offscreen/text/2d.text.measure.caret-position-edge-cases.tentative.html.ini b/tests/wpt/meta-legacy-layout/html/canvas/offscreen/text/2d.text.measure.caret-position-edge-cases.tentative.html.ini
deleted file mode 100644
index dc8137a3a4e..00000000000
--- a/tests/wpt/meta-legacy-layout/html/canvas/offscreen/text/2d.text.measure.caret-position-edge-cases.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[2d.text.measure.caret-position-edge-cases.tentative.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta-legacy-layout/html/canvas/offscreen/text/2d.text.measure.caret-position-edge-cases.tentative.worker.js.ini b/tests/wpt/meta-legacy-layout/html/canvas/offscreen/text/2d.text.measure.caret-position-edge-cases.tentative.worker.js.ini
deleted file mode 100644
index 074dbcf4af4..00000000000
--- a/tests/wpt/meta-legacy-layout/html/canvas/offscreen/text/2d.text.measure.caret-position-edge-cases.tentative.worker.js.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[2d.text.measure.caret-position-edge-cases.tentative.worker.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta-legacy-layout/html/canvas/offscreen/text/2d.text.measure.caret-position-edges.tentative.html.ini b/tests/wpt/meta-legacy-layout/html/canvas/offscreen/text/2d.text.measure.caret-position-edges.tentative.html.ini
deleted file mode 100644
index c1d026a098f..00000000000
--- a/tests/wpt/meta-legacy-layout/html/canvas/offscreen/text/2d.text.measure.caret-position-edges.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[2d.text.measure.caret-position-edges.tentative.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta-legacy-layout/html/canvas/offscreen/text/2d.text.measure.caret-position-edges.tentative.worker.js.ini b/tests/wpt/meta-legacy-layout/html/canvas/offscreen/text/2d.text.measure.caret-position-edges.tentative.worker.js.ini
deleted file mode 100644
index 0133a89a2ff..00000000000
--- a/tests/wpt/meta-legacy-layout/html/canvas/offscreen/text/2d.text.measure.caret-position-edges.tentative.worker.js.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[2d.text.measure.caret-position-edges.tentative.worker.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta-legacy-layout/html/canvas/offscreen/text/2d.text.measure.caret-position.tentative.html.ini b/tests/wpt/meta-legacy-layout/html/canvas/offscreen/text/2d.text.measure.caret-position.tentative.html.ini
deleted file mode 100644
index 51ffef6397a..00000000000
--- a/tests/wpt/meta-legacy-layout/html/canvas/offscreen/text/2d.text.measure.caret-position.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[2d.text.measure.caret-position.tentative.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta-legacy-layout/html/dom/idlharness.https.html.ini b/tests/wpt/meta-legacy-layout/html/dom/idlharness.https.html.ini
index d4d0a380c1d..64aabc77fff 100644
--- a/tests/wpt/meta-legacy-layout/html/dom/idlharness.https.html.ini
+++ b/tests/wpt/meta-legacy-layout/html/dom/idlharness.https.html.ini
@@ -6695,6 +6695,9 @@
   [OffscreenCanvasRenderingContext2D interface: operation getContextAttributes()]
     expected: FAIL
 
+  [NavigateEvent interface: attribute sourceElement]
+    expected: FAIL
+
 
 [idlharness.https.html?include=HTML.+]
   [HTMLAllCollection interface: existence and properties of interface object]
diff --git a/tests/wpt/meta-legacy-layout/html/semantics/embedded-content/the-iframe-element/iframe-loading-lazy-nav-location-replace.html.ini b/tests/wpt/meta-legacy-layout/html/semantics/embedded-content/the-iframe-element/iframe-loading-lazy-nav-location-replace.html.ini
new file mode 100644
index 00000000000..6548b1ef609
--- /dev/null
+++ b/tests/wpt/meta-legacy-layout/html/semantics/embedded-content/the-iframe-element/iframe-loading-lazy-nav-location-replace.html.ini
@@ -0,0 +1,3 @@
+[iframe-loading-lazy-nav-location-replace.html]
+  [Navigating iframe loading='lazy' before it is loaded: location.replace]
+    expected: FAIL
diff --git a/tests/wpt/meta-legacy-layout/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-1.html.ini b/tests/wpt/meta-legacy-layout/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-1.html.ini
index 2d3fbf0f308..7f5e282e3e2 100644
--- a/tests/wpt/meta-legacy-layout/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-1.html.ini
+++ b/tests/wpt/meta-legacy-layout/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-1.html.ini
@@ -1,5 +1,5 @@
 [iframe_sandbox_popups_escaping-1.html]
   type: testharness
-  expected: TIMEOUT
+  expected: CRASH
   [Check that popups from a sandboxed iframe escape the sandbox if\n       allow-popups-to-escape-sandbox is used]
     expected: TIMEOUT
diff --git a/tests/wpt/meta-legacy-layout/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-1.html.ini b/tests/wpt/meta-legacy-layout/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-1.html.ini
index f9138fb999a..6f7461b9472 100644
--- a/tests/wpt/meta-legacy-layout/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-1.html.ini
+++ b/tests/wpt/meta-legacy-layout/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-1.html.ini
@@ -1,5 +1,4 @@
 [iframe_sandbox_popups_nonescaping-1.html]
   type: testharness
-  expected: TIMEOUT
   [Check that popups from a sandboxed iframe do not escape the sandbox]
-    expected: NOTRUN
+    expected: FAIL
diff --git a/tests/wpt/meta-legacy-layout/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-3.html.ini b/tests/wpt/meta-legacy-layout/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-3.html.ini
index d5fd800f09d..ff6467094b8 100644
--- a/tests/wpt/meta-legacy-layout/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-3.html.ini
+++ b/tests/wpt/meta-legacy-layout/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-3.html.ini
@@ -1,4 +1,3 @@
 [iframe_sandbox_popups_nonescaping-3.html]
-  expected: TIMEOUT
   [Check that popups from a sandboxed iframe do not escape the sandbox]
-    expected: NOTRUN
+    expected: FAIL
diff --git a/tests/wpt/meta-legacy-layout/html/semantics/forms/the-select-element/select-value-selectedOption.tentative.html.ini b/tests/wpt/meta-legacy-layout/html/semantics/forms/the-select-element/select-value-selectedOption.tentative.html.ini
deleted file mode 100644
index 32d785edfa8..00000000000
--- a/tests/wpt/meta-legacy-layout/html/semantics/forms/the-select-element/select-value-selectedOption.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[select-value-selectedOption.tentative.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta-legacy-layout/html/semantics/interactive-elements/the-dialog-element/toggle-events.tentative.html.ini b/tests/wpt/meta-legacy-layout/html/semantics/interactive-elements/the-dialog-element/toggle-events.tentative.html.ini
index d566064c0e0..2ed41215882 100644
--- a/tests/wpt/meta-legacy-layout/html/semantics/interactive-elements/the-dialog-element/toggle-events.tentative.html.ini
+++ b/tests/wpt/meta-legacy-layout/html/semantics/interactive-elements/the-dialog-element/toggle-events.tentative.html.ini
@@ -1,33 +1,2 @@
 [toggle-events.tentative.html]
-  [dialog.show() should fire beforetoggle and toggle events.]
-    expected: FAIL
-
-  [dialog.show() should fire cancelable beforetoggle which does not open dialog if canceled]
-    expected: FAIL
-
-  [dialog.show() should coalesce asynchronous toggle events.]
-    expected: FAIL
-
-  [dialog.showModal() should fire beforetoggle and toggle events.]
-    expected: FAIL
-
-  [dialog.showModal() should fire cancelable beforetoggle which does not open dialog if canceled]
-    expected: FAIL
-
-  [dialog.showModal() should coalesce asynchronous toggle events.]
-    expected: FAIL
-
-  [dialog.show() should not open if beforetoggle removes]
-    expected: FAIL
-
-  [dialog.show() should not open if beforetoggle calls showPopover]
-    expected: FAIL
-
-  [dialog.showModal() should not double-set open/close if beforetoggle re-opens]
-    expected: FAIL
-
-  [dialog.showModal() should not open if beforetoggle removes]
-    expected: FAIL
-
-  [dialog.showModal() should not open if beforetoggle calls showPopover]
-    expected: FAIL
+  expected: TIMEOUT
diff --git a/tests/wpt/meta-legacy-layout/html/semantics/invokers/idlharness.tentative.html.ini b/tests/wpt/meta-legacy-layout/html/semantics/invokers/idlharness.tentative.html.ini
deleted file mode 100644
index 7238af7327e..00000000000
--- a/tests/wpt/meta-legacy-layout/html/semantics/invokers/idlharness.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[idlharness.tentative.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta-legacy-layout/html/semantics/invokers/interestelement-interface.tentative.html.ini b/tests/wpt/meta-legacy-layout/html/semantics/invokers/interestelement-interface.tentative.html.ini
deleted file mode 100644
index 8fe4e9c2d7b..00000000000
--- a/tests/wpt/meta-legacy-layout/html/semantics/invokers/interestelement-interface.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[interestelement-interface.tentative.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta-legacy-layout/html/semantics/invokers/invokeelement-interface.tentative.html.ini b/tests/wpt/meta-legacy-layout/html/semantics/invokers/invokeelement-interface.tentative.html.ini
deleted file mode 100644
index 952e7cada9b..00000000000
--- a/tests/wpt/meta-legacy-layout/html/semantics/invokers/invokeelement-interface.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[invokeelement-interface.tentative.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta-legacy-layout/html/semantics/popovers/button-type-reset-popovertarget.tentative.html.ini b/tests/wpt/meta-legacy-layout/html/semantics/popovers/button-type-reset-popovertarget.tentative.html.ini
new file mode 100644
index 00000000000..8db294c3caa
--- /dev/null
+++ b/tests/wpt/meta-legacy-layout/html/semantics/popovers/button-type-reset-popovertarget.tentative.html.ini
@@ -0,0 +1,2 @@
+[button-type-reset-popovertarget.tentative.html]
+  expected: TIMEOUT
diff --git a/tests/wpt/meta-legacy-layout/html/semantics/popovers/popover-css-properties.tentative.html.ini b/tests/wpt/meta-legacy-layout/html/semantics/popovers/popover-css-properties.tentative.html.ini
deleted file mode 100644
index 5a0e2042d4a..00000000000
--- a/tests/wpt/meta-legacy-layout/html/semantics/popovers/popover-css-properties.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[popover-css-properties.tentative.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta-legacy-layout/html/semantics/popovers/popover-types-with-hints.tentative.html.ini b/tests/wpt/meta-legacy-layout/html/semantics/popovers/popover-types-with-hints.tentative.html.ini
new file mode 100644
index 00000000000..b184c9f66a4
--- /dev/null
+++ b/tests/wpt/meta-legacy-layout/html/semantics/popovers/popover-types-with-hints.tentative.html.ini
@@ -0,0 +1,2 @@
+[popover-types-with-hints.tentative.html]
+  expected: TIMEOUT
diff --git a/tests/wpt/meta-legacy-layout/html/semantics/scripting-1/the-script-element/execution-timing/077.html.ini b/tests/wpt/meta-legacy-layout/html/semantics/scripting-1/the-script-element/execution-timing/077.html.ini
new file mode 100644
index 00000000000..86e95d0ff4c
--- /dev/null
+++ b/tests/wpt/meta-legacy-layout/html/semantics/scripting-1/the-script-element/execution-timing/077.html.ini
@@ -0,0 +1,3 @@
+[077.html]
+  [ adding several types of scripts through the DOM and removing some of them confuses scheduler ]
+    expected: FAIL
diff --git a/tests/wpt/meta-legacy-layout/mediasession/setactionhandler.html.ini b/tests/wpt/meta-legacy-layout/mediasession/setactionhandler.html.ini
index 463ddfe654a..7d80c0f82b9 100644
--- a/tests/wpt/meta-legacy-layout/mediasession/setactionhandler.html.ini
+++ b/tests/wpt/meta-legacy-layout/mediasession/setactionhandler.html.ini
@@ -19,3 +19,9 @@
 
   [Test that setActionHandler("enterpictureinpicture") succeeds]
     expected: FAIL
+
+  [Test that setActionHandler("togglescreenshare") succeeds]
+    expected: FAIL
+
+  [Test that setActionHandler("voiceactivity") succeeds]
+    expected: FAIL
diff --git a/tests/wpt/meta-legacy-layout/performance-timeline/navigation-id-detached-frame.tentative.html.ini b/tests/wpt/meta-legacy-layout/performance-timeline/navigation-id-detached-frame.tentative.html.ini
new file mode 100644
index 00000000000..6764c93df51
--- /dev/null
+++ b/tests/wpt/meta-legacy-layout/performance-timeline/navigation-id-detached-frame.tentative.html.ini
@@ -0,0 +1,4 @@
+[navigation-id-detached-frame.tentative.html]
+  expected: TIMEOUT
+  [The navigation_id getter does not crash a window of detached frame]
+    expected: TIMEOUT
diff --git a/tests/wpt/meta-legacy-layout/performance-timeline/tentative/detached-frame.html.ini b/tests/wpt/meta-legacy-layout/performance-timeline/tentative/detached-frame.html.ini
new file mode 100644
index 00000000000..c5aac72fad4
--- /dev/null
+++ b/tests/wpt/meta-legacy-layout/performance-timeline/tentative/detached-frame.html.ini
@@ -0,0 +1,2 @@
+[detached-frame.html]
+  expected: TIMEOUT
diff --git a/tests/wpt/meta-legacy-layout/performance-timeline/tentative/include-frames-originA-A-A.html.ini b/tests/wpt/meta-legacy-layout/performance-timeline/tentative/include-frames-originA-A-A.html.ini
new file mode 100644
index 00000000000..3a52ab8c6bb
--- /dev/null
+++ b/tests/wpt/meta-legacy-layout/performance-timeline/tentative/include-frames-originA-A-A.html.ini
@@ -0,0 +1,2 @@
+[include-frames-originA-A-A.html]
+  expected: TIMEOUT
diff --git a/tests/wpt/meta-legacy-layout/performance-timeline/tentative/include-frames-originA-A.html.ini b/tests/wpt/meta-legacy-layout/performance-timeline/tentative/include-frames-originA-A.html.ini
new file mode 100644
index 00000000000..be55d35736e
--- /dev/null
+++ b/tests/wpt/meta-legacy-layout/performance-timeline/tentative/include-frames-originA-A.html.ini
@@ -0,0 +1,2 @@
+[include-frames-originA-A.html]
+  expected: TIMEOUT
diff --git a/tests/wpt/meta-legacy-layout/performance-timeline/tentative/include-frames-originA-AA.html.ini b/tests/wpt/meta-legacy-layout/performance-timeline/tentative/include-frames-originA-AA.html.ini
new file mode 100644
index 00000000000..53d60ea5e29
--- /dev/null
+++ b/tests/wpt/meta-legacy-layout/performance-timeline/tentative/include-frames-originA-AA.html.ini
@@ -0,0 +1,2 @@
+[include-frames-originA-AA.html]
+  expected: TIMEOUT
diff --git a/tests/wpt/meta-legacy-layout/performance-timeline/tentative/include-frames-originA-AB.html.ini b/tests/wpt/meta-legacy-layout/performance-timeline/tentative/include-frames-originA-AB.html.ini
new file mode 100644
index 00000000000..f2edd3bd1d8
--- /dev/null
+++ b/tests/wpt/meta-legacy-layout/performance-timeline/tentative/include-frames-originA-AB.html.ini
@@ -0,0 +1,2 @@
+[include-frames-originA-AB.html]
+  expected: TIMEOUT
diff --git a/tests/wpt/meta-legacy-layout/performance-timeline/tentative/include-frames-originA-B-A.html.ini b/tests/wpt/meta-legacy-layout/performance-timeline/tentative/include-frames-originA-B-A.html.ini
new file mode 100644
index 00000000000..f9edb91a6d9
--- /dev/null
+++ b/tests/wpt/meta-legacy-layout/performance-timeline/tentative/include-frames-originA-B-A.html.ini
@@ -0,0 +1,2 @@
+[include-frames-originA-B-A.html]
+  expected: TIMEOUT
diff --git a/tests/wpt/meta-legacy-layout/performance-timeline/tentative/include-frames-originA-B-B.html.ini b/tests/wpt/meta-legacy-layout/performance-timeline/tentative/include-frames-originA-B-B.html.ini
new file mode 100644
index 00000000000..fe446b62c4c
--- /dev/null
+++ b/tests/wpt/meta-legacy-layout/performance-timeline/tentative/include-frames-originA-B-B.html.ini
@@ -0,0 +1,2 @@
+[include-frames-originA-B-B.html]
+  expected: TIMEOUT
diff --git a/tests/wpt/meta-legacy-layout/performance-timeline/tentative/include-frames-originA-B.html.ini b/tests/wpt/meta-legacy-layout/performance-timeline/tentative/include-frames-originA-B.html.ini
new file mode 100644
index 00000000000..c37ba79c265
--- /dev/null
+++ b/tests/wpt/meta-legacy-layout/performance-timeline/tentative/include-frames-originA-B.html.ini
@@ -0,0 +1,2 @@
+[include-frames-originA-B.html]
+  expected: TIMEOUT
diff --git a/tests/wpt/meta-legacy-layout/performance-timeline/tentative/performance-entry-source.html.ini b/tests/wpt/meta-legacy-layout/performance-timeline/tentative/performance-entry-source.html.ini
new file mode 100644
index 00000000000..9590b722a6d
--- /dev/null
+++ b/tests/wpt/meta-legacy-layout/performance-timeline/tentative/performance-entry-source.html.ini
@@ -0,0 +1,2 @@
+[performance-entry-source.html]
+  expected: TIMEOUT
diff --git a/tests/wpt/meta-legacy-layout/performance-timeline/tentative/with-filter-options-originA.html.ini b/tests/wpt/meta-legacy-layout/performance-timeline/tentative/with-filter-options-originA.html.ini
new file mode 100644
index 00000000000..8f143701190
--- /dev/null
+++ b/tests/wpt/meta-legacy-layout/performance-timeline/tentative/with-filter-options-originA.html.ini
@@ -0,0 +1,2 @@
+[with-filter-options-originA.html]
+  expected: TIMEOUT
diff --git a/tests/wpt/meta/FileAPI/url/url-in-tags-revoke.window.js.ini b/tests/wpt/meta/FileAPI/url/url-in-tags-revoke.window.js.ini
index 745f3e84edb..62c2d998e8f 100644
--- a/tests/wpt/meta/FileAPI/url/url-in-tags-revoke.window.js.ini
+++ b/tests/wpt/meta/FileAPI/url/url-in-tags-revoke.window.js.ini
@@ -14,6 +14,3 @@
 
   [Opening a blob URL in a new window by clicking an <a> tag works immediately before revoking the URL.]
     expected: TIMEOUT
-
-  [Fetching a blob URL immediately before revoking it works in <script> tags.]
-    expected: TIMEOUT
diff --git a/tests/wpt/meta/MANIFEST.json b/tests/wpt/meta/MANIFEST.json
index d0f6279473e..6438fdaff1a 100644
--- a/tests/wpt/meta/MANIFEST.json
+++ b/tests/wpt/meta/MANIFEST.json
@@ -4152,6 +4152,13 @@
        {}
       ]
      ],
+     "root-element-layout-parent-crash.html": [
+      "d777d918077bad9388608d2dcbc8094145654638",
+      [
+       null,
+       {}
+      ]
+     ],
      "scroll-buttons-container-query-crash.html": [
       "e5489228a95c6b7529e82d68b09bcbbd427e3ee2",
       [
@@ -5968,6 +5975,13 @@
        {}
       ]
      ],
+     "nth-child-spurious-brace-crash.html": [
+      "5860b25ae4be19239811fb2119f41a542bb7dce6",
+      [
+       null,
+       {}
+      ]
+     ],
      "pseudo-where-crash.html": [
       "ad683ac8b9e0223666b6e3ccfc951a9817be0d32",
       [
@@ -127479,7 +127493,7 @@
       ]
      ],
      "background-image-table-cells-straddling-no-repeat.html": [
-      "67f7937a3fcc93d1f4d0ce1806eea1e12e6078ee",
+      "022e64620896a2aea6ad224a18bc4bee58774a2a",
       [
        null,
        [
@@ -127488,7 +127502,23 @@
          "=="
         ]
        ],
-       {}
+       {
+        "fuzzy": [
+         [
+          null,
+          [
+           [
+            0,
+            1
+           ],
+           [
+            0,
+            4500
+           ]
+          ]
+         ]
+        ]
+       }
       ]
      ],
      "background-image-table-cells-zoomed.html": [
@@ -160115,6 +160145,19 @@
         {}
        ]
       ],
+      "dynamic-change-with-slotted-text.html": [
+       "37b16621321306a0e579d781ed4b11b30321f3d7",
+       [
+        null,
+        [
+         [
+          "/css/css-contain/content-visibility/dynamic-change-with-slotted-text-ref.html",
+          "=="
+         ]
+        ],
+        {}
+       ]
+      ],
       "element-reassigned-to-skipped-slot.html": [
        "d71ee9eef02a65440e9fb46c70e6016d01b01a22",
        [
@@ -182917,6 +182960,19 @@
        {}
       ]
      ],
+     "lang-attribute-affects-rendering.html": [
+      "041fd8f5abdc1524b585673e919de83126efe49a",
+      [
+       null,
+       [
+        [
+         "/css/css-fonts/lang-attribute-affects-rendering-ref.html",
+         "!="
+        ]
+       ],
+       {}
+      ]
+     ],
      "line-gap-override.html": [
       "487fb2ea59d91cc57715a44e33198fc6223c1d68",
       [
@@ -183994,6 +184050,77 @@
       ]
      ]
     },
+    "css-gaps": {
+     "tentative": {
+      "grid": {
+       "grid-gap-decorations-001.html": [
+        "2741196e52239c64c9f509a87db3f82b3bc90b24",
+        [
+         null,
+         [
+          [
+           "/css/reference/ref-filled-green-100px-square.xht",
+           "=="
+          ]
+         ],
+         {}
+        ]
+       ],
+       "grid-gap-decorations-002.html": [
+        "8cad606c6acf23a4fa07f34986d17a25e35b3a44",
+        [
+         null,
+         [
+          [
+           "/css/css-gaps/tentative/grid/grid-gap-decorations-002-ref.html",
+           "=="
+          ]
+         ],
+         {}
+        ]
+       ],
+       "grid-gap-decorations-003.html": [
+        "5e618aae79bf021f0a9532c4b7de3a22332cb29b",
+        [
+         null,
+         [
+          [
+           "/css/css-gaps/tentative/grid/grid-gap-decorations-003-ref.html",
+           "=="
+          ]
+         ],
+         {}
+        ]
+       ],
+       "grid-gap-decorations-004.html": [
+        "ab7e5d6695ce2f7801634c4e7e538a5f6794665f",
+        [
+         null,
+         [
+          [
+           "/css/css-gaps/tentative/grid/grid-gap-decorations-004-ref.html",
+           "=="
+          ]
+         ],
+         {}
+        ]
+       ],
+       "grid-gap-decorations-005.html": [
+        "8a429eea3553b74414e4d2d45dec2ea8cb01673c",
+        [
+         null,
+         [
+          [
+           "/css/css-gaps/tentative/grid/grid-gap-decorations-005-ref.html",
+           "=="
+          ]
+         ],
+         {}
+        ]
+       ]
+      }
+     }
+    },
     "css-grid": {
      "abspos": {
       "absolute-positioning-changing-containing-block-001.html": [
@@ -195874,6 +196001,35 @@
         }
        ]
       ],
+      "gradient-eval-predefined-color-spaces.html": [
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+    ],
+    "trusted-types-reporting-for-ShadowRoot-innerHTML.html": [
+     "9aaf2d8aa4f50dd4712efb1f6f47bbe05b0dd2c9",
+     [
+      null,
+      {}
+     ]
+    ],
+    "trusted-types-reporting-for-ShadowRoot-setHTMLUnsafe.html": [
+     "b65261d0e381806059ec58138007bfa2be2003bf",
+     [
+      null,
+      {}
+     ]
+    ],
     "trusted-types-reporting.html": [
-     "2ea5855e054637c4abc03ae7a468cfeccf035047",
+     "1649e46d0d5aa4349fa001e46f8be743ded68df3",
      [
       null,
       {
@@ -798000,21 +800634,21 @@
      ]
     ],
     "trusted-types-source-file-path.html": [
-     "edb1d5d68e9331a6c46a2bb0b733bff8751b1914",
+     "105a04247f630ddb49a2813cfa2345226eac91aa",
      [
       null,
       {}
      ]
     ],
     "trusted-types-svg-script-set-href.html": [
-     "f339ba119a1b6bfa5368007db13cb338c368bd90",
+     "3092fb41d81f735b902db0a508d22bcf1d90039b",
      [
       null,
       {}
      ]
     ],
     "trusted-types-svg-script.html": [
-     "4fc3b710eb620c752ab50386ded8c16c75b5060f",
+     "c08bdc0db87026b19dda24408cb4bca617b1e570",
      [
       null,
       {}
@@ -798380,6 +801014,15 @@
        }
       ]
      ],
+     "mousemove_after_mouseover_target_removed.html": [
+      "f84ba4ff5b7038d1d9852eb3b201807408736c2e",
+      [
+       null,
+       {
+        "testdriver": true
+       }
+      ]
+     ],
      "mousemove_prevent_default_action.html": [
       "4caf98087fbf4372dc5ad28afdb48cd0bae6cea2",
       [
@@ -863124,6 +865767,16 @@
      ]
     ],
     "simulcast": {
+     "av1.https.html": [
+      "bcad048d7afb3ed1b3117baa6afcb6688d6abf3d",
+      [
+       null,
+       {
+        "testdriver": true,
+        "timeout": "long"
+       }
+      ]
+     ],
      "basic.https.html": [
       "46c0969a405b5e7b51bd63d01824abdb2342ce10",
       [
@@ -863205,7 +865858,7 @@
       ]
      ],
      "setParameters-maxFramerate.https.html": [
-      "a1a167e059224cb3de65b8118ef84a397ac550b8",
+      "ebd2a22fbdaea001a15551f51126744ba900b6c4",
       [
        null,
        {
@@ -863225,7 +865878,7 @@
       ]
      ],
      "vp9-scalability-mode.https.html": [
-      "1c2d48c5dc417be7559de0e7911b6a4a049ab354",
+      "55d43495e4d1eb51f9e6db0efe565279d1ff183d",
       [
        null,
        {
@@ -863235,7 +865888,7 @@
       ]
      ],
      "vp9.https.html": [
-      "d366120b6e84b92c1221089a89121d84af8cf08c",
+      "b7ef90e6522358fdd3353250cffa58d5517ce1ea",
       [
        null,
        {
@@ -863443,7 +866096,7 @@
       ]
      ],
      "RTCEncodedAudioFrame-metadata.https.html": [
-      "609467b5e3ecdc2b777321da15fb64f713985082",
+      "435e1c067834fe2050fd5c510f95516c5e6aeb61",
       [
        null,
        {
@@ -909030,6 +911683,15 @@
          ]
         ]
        },
+       "navigation_committed": {
+        "navigation_committed.py": [
+         "fbe0705fc7be17051bca12ead6044ac9ee35f018",
+         [
+          null,
+          {}
+         ]
+        ]
+       },
        "navigation_failed": {
         "navigation_failed.py": [
          "85cab4d7d97cd38d49da3637a833d4c684a326ed",
@@ -909931,7 +912593,7 @@
       "script": {
        "add_preload_script": {
         "add_preload_script.py": [
-         "cf5e77fac449576b8b861399625d1f357b7b3bd7",
+         "5e3e2d62ac1d47a9ecb5a7b35f4f62c40030d0d9",
          [
           null,
           {}
@@ -909945,14 +912607,14 @@
          ]
         ],
         "contexts.py": [
-         "135cfb6016df304e2a5c190e18a62478af67fe15",
+         "84b260b2d8a8a6b1b1cf3a01c64666ff2dd11154",
          [
           null,
           {}
          ]
         ],
         "invalid.py": [
-         "047496b4c210b5369d062234db89a9903e4f0fa9",
+         "9ea9a4442b06e05e524b3360efba48c1365dc93f",
          [
           null,
           {}
@@ -909964,6 +912626,13 @@
           null,
           {}
          ]
+        ],
+        "user_contexts.py": [
+         "9a6bb45cc7083c489ee14e1196f45e5cebedfeb8",
+         [
+          null,
+          {}
+         ]
         ]
        },
        "call_function": {
@@ -910306,7 +912975,7 @@
          ]
         ],
         "remove_preload_script.py": [
-         "2cf35fb9bb802f61cf97a38628d406e9a75c1e1b",
+         "1d1a53f0ef30eb3a5e244d6ca8e4012566392346",
          [
           null,
           {}
@@ -910356,7 +913025,7 @@
          ]
         ],
         "invalid.py": [
-         "e553a2e501ebfcef65dc302bcf53c22af975e496",
+         "850c71b51fcc46693bf9f31486e43e1991c89d6d",
          [
           null,
           {}
diff --git a/tests/wpt/meta/css/compositing/mix-blend-mode/mix-blend-mode-video-sibling.html.ini b/tests/wpt/meta/css/compositing/mix-blend-mode/mix-blend-mode-video-sibling.html.ini
new file mode 100644
index 00000000000..55551102b45
--- /dev/null
+++ b/tests/wpt/meta/css/compositing/mix-blend-mode/mix-blend-mode-video-sibling.html.ini
@@ -0,0 +1,2 @@
+[mix-blend-mode-video-sibling.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-animations/parsing/animation-trigger-shorthand.tentative.html.ini b/tests/wpt/meta/css/css-animations/parsing/animation-trigger-shorthand.tentative.html.ini
new file mode 100644
index 00000000000..db6a3cba3ad
--- /dev/null
+++ b/tests/wpt/meta/css/css-animations/parsing/animation-trigger-shorthand.tentative.html.ini
@@ -0,0 +1,270 @@
+[animation-trigger-shorthand.tentative.html]
+  [e.style['animation-trigger'\] = "view() once contain 0% contain 100% cover 0% cover 100%" should set animation-trigger-exit-range-end]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() once contain 0% contain 100% cover 0% cover 100%" should set animation-trigger-exit-range-start]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() once contain 0% contain 100% cover 0% cover 100%" should set animation-trigger-range-end]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() once contain 0% contain 100% cover 0% cover 100%" should set animation-trigger-range-start]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() once contain 0% contain 100% cover 0% cover 100%" should set animation-trigger-timeline]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() once contain 0% contain 100% cover 0% cover 100%" should set animation-trigger-type]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() once contain 0% contain 100% cover 0% cover 100%" should not set unrelated longhands]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() once contain 20% contain 80% cover 10% cover 90%" should set animation-trigger-exit-range-end]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() once contain 20% contain 80% cover 10% cover 90%" should set animation-trigger-exit-range-start]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() once contain 20% contain 80% cover 10% cover 90%" should set animation-trigger-range-end]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() once contain 20% contain 80% cover 10% cover 90%" should set animation-trigger-range-start]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() once contain 20% contain 80% cover 10% cover 90%" should set animation-trigger-timeline]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() once contain 20% contain 80% cover 10% cover 90%" should set animation-trigger-type]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() once contain 20% contain 80% cover 10% cover 90%" should not set unrelated longhands]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() once contain 0% contain 100% cover 0%" should set animation-trigger-exit-range-end]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() once contain 0% contain 100% cover 0%" should set animation-trigger-exit-range-start]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() once contain 0% contain 100% cover 0%" should set animation-trigger-range-end]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() once contain 0% contain 100% cover 0%" should set animation-trigger-range-start]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() once contain 0% contain 100% cover 0%" should set animation-trigger-timeline]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() once contain 0% contain 100% cover 0%" should set animation-trigger-type]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() once contain 0% contain 100% cover 0%" should not set unrelated longhands]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() once contain 20% contain 80% cover 10%" should set animation-trigger-exit-range-end]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() once contain 20% contain 80% cover 10%" should set animation-trigger-exit-range-start]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() once contain 20% contain 80% cover 10%" should set animation-trigger-range-end]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() once contain 20% contain 80% cover 10%" should set animation-trigger-range-start]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() once contain 20% contain 80% cover 10%" should set animation-trigger-timeline]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() once contain 20% contain 80% cover 10%" should set animation-trigger-type]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() once contain 20% contain 80% cover 10%" should not set unrelated longhands]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() once contain 0% contain 100% cover" should set animation-trigger-exit-range-end]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() once contain 0% contain 100% cover" should set animation-trigger-exit-range-start]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() once contain 0% contain 100% cover" should set animation-trigger-range-end]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() once contain 0% contain 100% cover" should set animation-trigger-range-start]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() once contain 0% contain 100% cover" should set animation-trigger-timeline]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() once contain 0% contain 100% cover" should set animation-trigger-type]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() once contain 0% contain 100% cover" should not set unrelated longhands]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() alternate contain 0% contain 100%" should set animation-trigger-exit-range-end]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() alternate contain 0% contain 100%" should set animation-trigger-exit-range-start]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() alternate contain 0% contain 100%" should set animation-trigger-range-end]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() alternate contain 0% contain 100%" should set animation-trigger-range-start]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() alternate contain 0% contain 100%" should set animation-trigger-timeline]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() alternate contain 0% contain 100%" should set animation-trigger-type]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() alternate contain 0% contain 100%" should not set unrelated longhands]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() alternate contain 20% contain 80%" should set animation-trigger-exit-range-end]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() alternate contain 20% contain 80%" should set animation-trigger-exit-range-start]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() alternate contain 20% contain 80%" should set animation-trigger-range-end]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() alternate contain 20% contain 80%" should set animation-trigger-range-start]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() alternate contain 20% contain 80%" should set animation-trigger-timeline]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() alternate contain 20% contain 80%" should set animation-trigger-type]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() alternate contain 20% contain 80%" should not set unrelated longhands]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() alternate contain 0%" should set animation-trigger-exit-range-end]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() alternate contain 0%" should set animation-trigger-exit-range-start]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() alternate contain 0%" should set animation-trigger-range-end]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() alternate contain 0%" should set animation-trigger-range-start]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() alternate contain 0%" should set animation-trigger-timeline]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() alternate contain 0%" should set animation-trigger-type]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() alternate contain 0%" should not set unrelated longhands]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() alternate contain 10%" should set animation-trigger-exit-range-end]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() alternate contain 10%" should set animation-trigger-exit-range-start]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() alternate contain 10%" should set animation-trigger-range-end]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() alternate contain 10%" should set animation-trigger-range-start]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() alternate contain 10%" should set animation-trigger-timeline]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() alternate contain 10%" should set animation-trigger-type]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() alternate contain 10%" should not set unrelated longhands]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() alternate contain" should set animation-trigger-exit-range-end]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() alternate contain" should set animation-trigger-exit-range-start]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() alternate contain" should set animation-trigger-range-end]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() alternate contain" should set animation-trigger-range-start]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() alternate contain" should set animation-trigger-timeline]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() alternate contain" should set animation-trigger-type]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() alternate contain" should not set unrelated longhands]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() alternate" should set animation-trigger-exit-range-end]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() alternate" should set animation-trigger-exit-range-start]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() alternate" should set animation-trigger-range-end]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() alternate" should set animation-trigger-range-start]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() alternate" should set animation-trigger-timeline]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() alternate" should set animation-trigger-type]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "view() alternate" should not set unrelated longhands]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "repeat" should set animation-trigger-exit-range-end]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "repeat" should set animation-trigger-exit-range-start]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "repeat" should set animation-trigger-range-end]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "repeat" should set animation-trigger-range-start]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "repeat" should set animation-trigger-timeline]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "repeat" should set animation-trigger-type]
+    expected: FAIL
+
+  [e.style['animation-trigger'\] = "repeat" should not set unrelated longhands]
+    expected: FAIL
+
+  [Property animation-trigger value 'view() once contain 0% contain 100% cover 0% cover 100%']
+    expected: FAIL
+
+  [Property animation-trigger value 'view() once contain 20% contain 80% cover 10% cover 90%']
+    expected: FAIL
+
+  [Property animation-trigger value 'view() once contain 20% contain 80% cover 0%']
+    expected: FAIL
+
+  [Property animation-trigger value 'view() once contain 20% contain 80% cover 10%']
+    expected: FAIL
+
+  [Property animation-trigger value 'view() once contain 0% contain 100%']
+    expected: FAIL
+
+  [Property animation-trigger value 'view() once']
+    expected: FAIL
diff --git a/tests/wpt/meta/css/css-fonts/idlharness.html.ini b/tests/wpt/meta/css/css-fonts/idlharness.html.ini
index 2726c4f13c0..ad7bbb1369d 100644
--- a/tests/wpt/meta/css/css-fonts/idlharness.html.ini
+++ b/tests/wpt/meta/css/css-fonts/idlharness.html.ini
@@ -217,3 +217,39 @@
 
   [CSSFontFaceDescriptors interface: attribute line-gap-override]
     expected: FAIL
+
+  [CSSFontFaceDescriptors interface: attribute fontSize]
+    expected: FAIL
+
+  [CSSFontFaceDescriptors interface: attribute font-size]
+    expected: FAIL
+
+  [CSSFontFaceDescriptors interface: attribute sizeAdjust]
+    expected: FAIL
+
+  [CSSFontFaceDescriptors interface: attribute size-adjust]
+    expected: FAIL
+
+  [CSSFontFaceDescriptors interface: attribute superscriptPositionOverride]
+    expected: FAIL
+
+  [CSSFontFaceDescriptors interface: attribute superscript-position-override]
+    expected: FAIL
+
+  [CSSFontFaceDescriptors interface: attribute subscriptPositionOverride]
+    expected: FAIL
+
+  [CSSFontFaceDescriptors interface: attribute subscript-position-override]
+    expected: FAIL
+
+  [CSSFontFaceDescriptors interface: attribute superscriptSizeOverride]
+    expected: FAIL
+
+  [CSSFontFaceDescriptors interface: attribute superscript-size-override]
+    expected: FAIL
+
+  [CSSFontFaceDescriptors interface: attribute subscriptSizeOverride]
+    expected: FAIL
+
+  [CSSFontFaceDescriptors interface: attribute subscript-size-override]
+    expected: FAIL
diff --git a/tests/wpt/meta/css/css-fonts/lang-attribute-affects-rendering.html.ini b/tests/wpt/meta/css/css-fonts/lang-attribute-affects-rendering.html.ini
new file mode 100644
index 00000000000..9d40ac2e146
--- /dev/null
+++ b/tests/wpt/meta/css/css-fonts/lang-attribute-affects-rendering.html.ini
@@ -0,0 +1,2 @@
+[lang-attribute-affects-rendering.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-gaps/tentative/grid/grid-gap-decorations-001.html.ini b/tests/wpt/meta/css/css-gaps/tentative/grid/grid-gap-decorations-001.html.ini
new file mode 100644
index 00000000000..a4670ddf7a7
--- /dev/null
+++ b/tests/wpt/meta/css/css-gaps/tentative/grid/grid-gap-decorations-001.html.ini
@@ -0,0 +1,2 @@
+[grid-gap-decorations-001.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-gaps/tentative/grid/grid-gap-decorations-002.html.ini b/tests/wpt/meta/css/css-gaps/tentative/grid/grid-gap-decorations-002.html.ini
new file mode 100644
index 00000000000..7a9e7840141
--- /dev/null
+++ b/tests/wpt/meta/css/css-gaps/tentative/grid/grid-gap-decorations-002.html.ini
@@ -0,0 +1,2 @@
+[grid-gap-decorations-002.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-gaps/tentative/grid/grid-gap-decorations-003.html.ini b/tests/wpt/meta/css/css-gaps/tentative/grid/grid-gap-decorations-003.html.ini
new file mode 100644
index 00000000000..752b0258c9f
--- /dev/null
+++ b/tests/wpt/meta/css/css-gaps/tentative/grid/grid-gap-decorations-003.html.ini
@@ -0,0 +1,2 @@
+[grid-gap-decorations-003.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-gaps/tentative/grid/grid-gap-decorations-004.html.ini b/tests/wpt/meta/css/css-gaps/tentative/grid/grid-gap-decorations-004.html.ini
new file mode 100644
index 00000000000..3c987480a94
--- /dev/null
+++ b/tests/wpt/meta/css/css-gaps/tentative/grid/grid-gap-decorations-004.html.ini
@@ -0,0 +1,2 @@
+[grid-gap-decorations-004.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-gaps/tentative/grid/grid-gap-decorations-005.html.ini b/tests/wpt/meta/css/css-gaps/tentative/grid/grid-gap-decorations-005.html.ini
new file mode 100644
index 00000000000..8ff84c0e286
--- /dev/null
+++ b/tests/wpt/meta/css/css-gaps/tentative/grid/grid-gap-decorations-005.html.ini
@@ -0,0 +1,2 @@
+[grid-gap-decorations-005.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-images/gradient/gradient-eval-predefined-color-spaces.html.ini b/tests/wpt/meta/css/css-images/gradient/gradient-eval-predefined-color-spaces.html.ini
new file mode 100644
index 00000000000..185121ae0d8
--- /dev/null
+++ b/tests/wpt/meta/css/css-images/gradient/gradient-eval-predefined-color-spaces.html.ini
@@ -0,0 +1,2 @@
+[gradient-eval-predefined-color-spaces.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-mixins/at-function-cssom.tentative.html.ini b/tests/wpt/meta/css/css-mixins/at-function-cssom.tentative.html.ini
new file mode 100644
index 00000000000..f6736ca2a31
--- /dev/null
+++ b/tests/wpt/meta/css/css-mixins/at-function-cssom.tentative.html.ini
@@ -0,0 +1,99 @@
+[at-function-cssom.tentative.html]
+  [Empty CSSFunctionRule]
+    expected: FAIL
+
+  [Single CSSFunctionDeclarations]
+    expected: FAIL
+
+  [CSSFunctionDescriptors (result)]
+    expected: FAIL
+
+  [CSSFunctionDescriptors (result, repeated)]
+    expected: FAIL
+
+  [CSSFunctionDescriptors (local variables)]
+    expected: FAIL
+
+  [CSSFunctionDescriptors (local variables, repeated)]
+    expected: FAIL
+
+  [CSSFunctionDescriptors (local variables and result)]
+    expected: FAIL
+
+  [CSSFunctionDescriptors serialization]
+    expected: FAIL
+
+  [Unknown descriptors]
+    expected: FAIL
+
+  [Unknown descriptors (mutation)]
+    expected: FAIL
+
+  [item()]
+    expected: FAIL
+
+  [Indexed property getter]
+    expected: FAIL
+
+  [CSSFunctionRule.name]
+    expected: FAIL
+
+  [CSSFunctionRule.getParameters()]
+    expected: FAIL
+
+  [CSSFunctionRule.returnType]
+    expected: FAIL
+
+  [CSSFunctionRule escapes]
+    expected: FAIL
+
+  [CSSFunctionRule.cssText (--empty)]
+    expected: FAIL
+
+  [CSSFunctionRule.cssText (--ret-length)]
+    expected: FAIL
+
+  [CSSFunctionRule.cssText (--ret-length-auto)]
+    expected: FAIL
+
+  [CSSFunctionRule.cssText (--param-single)]
+    expected: FAIL
+
+  [CSSFunctionRule.cssText (--param-typed)]
+    expected: FAIL
+
+  [CSSFunctionRule.cssText (--param-typed-default)]
+    expected: FAIL
+
+  [CSSFunctionRule.cssText (--param-default)]
+    expected: FAIL
+
+  [CSSFunctionRule.cssText (--param-multi)]
+    expected: FAIL
+
+  [CSSFunctionRule.cssText (--param-multi-mixed)]
+    expected: FAIL
+
+  [CSSFunctionRule.cssText (--body-result)]
+    expected: FAIL
+
+  [CSSFunctionRule.cssText (--body-locals)]
+    expected: FAIL
+
+  [CSSFunctionRule.cssText (--param-type-fn)]
+    expected: FAIL
+
+  [CSSFunctionRule.cssText (--param-type-fn-uni)]
+    expected: FAIL
+
+  [CSSFunctionRule.cssText (--ret-type-fn)]
+    expected: FAIL
+
+  [CSSFunctionRule.cssText (--ret-type-fn-uni)]
+    expected: FAIL
+
+  [CSSFunctionRule.cssText (--body-result-multi)]
+    expected: FAIL
+
+  [CSSFunctionRule.cssText (--escaped-)]
+    expected: FAIL
diff --git a/tests/wpt/meta/css/css-mixins/local-var-substitution.html.ini b/tests/wpt/meta/css/css-mixins/local-var-substitution.html.ini
new file mode 100644
index 00000000000..0b83db1f78c
--- /dev/null
+++ b/tests/wpt/meta/css/css-mixins/local-var-substitution.html.ini
@@ -0,0 +1,12 @@
+[local-var-substitution.html]
+  [Fallback directly in result]
+    expected: FAIL
+
+  [Fallback via present, but invalid local]
+    expected: FAIL
+
+  [Fallback is locally resolved (result)]
+    expected: FAIL
+
+  [Fallback is locally resolved (local var)]
+    expected: FAIL
diff --git a/tests/wpt/meta/css/css-overflow/line-clamp/block-ellipsis-010.html.ini b/tests/wpt/meta/css/css-overflow/line-clamp/block-ellipsis-010.html.ini
new file mode 100644
index 00000000000..fd4c861d471
--- /dev/null
+++ b/tests/wpt/meta/css/css-overflow/line-clamp/block-ellipsis-010.html.ini
@@ -0,0 +1,2 @@
+[block-ellipsis-010.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-overflow/scroll-buttons-layout-parent.html.ini b/tests/wpt/meta/css/css-overflow/scroll-buttons-layout-parent.html.ini
new file mode 100644
index 00000000000..97c4c6e2d3b
--- /dev/null
+++ b/tests/wpt/meta/css/css-overflow/scroll-buttons-layout-parent.html.ini
@@ -0,0 +1,2 @@
+[scroll-buttons-layout-parent.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-overflow/scroll-marker-group-016.html.ini b/tests/wpt/meta/css/css-overflow/scroll-marker-group-016.html.ini
new file mode 100644
index 00000000000..e2c35a1c8db
--- /dev/null
+++ b/tests/wpt/meta/css/css-overflow/scroll-marker-group-016.html.ini
@@ -0,0 +1,2 @@
+[scroll-marker-group-016.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-overflow/scroll-marker-group-017.html.ini b/tests/wpt/meta/css/css-overflow/scroll-marker-group-017.html.ini
new file mode 100644
index 00000000000..4d2c8dcfbf8
--- /dev/null
+++ b/tests/wpt/meta/css/css-overflow/scroll-marker-group-017.html.ini
@@ -0,0 +1,2 @@
+[scroll-marker-group-017.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-overflow/scroll-marker-group-keeps-active-in-view.html.ini b/tests/wpt/meta/css/css-overflow/scroll-marker-group-keeps-active-in-view.html.ini
new file mode 100644
index 00000000000..6715f785d90
--- /dev/null
+++ b/tests/wpt/meta/css/css-overflow/scroll-marker-group-keeps-active-in-view.html.ini
@@ -0,0 +1,2 @@
+[scroll-marker-group-keeps-active-in-view.html]
+  expected: TIMEOUT
diff --git a/tests/wpt/meta/css/css-overflow/scroll-marker-group-layout-parent.html.ini b/tests/wpt/meta/css/css-overflow/scroll-marker-group-layout-parent.html.ini
new file mode 100644
index 00000000000..717469902be
--- /dev/null
+++ b/tests/wpt/meta/css/css-overflow/scroll-marker-group-layout-parent.html.ini
@@ -0,0 +1,2 @@
+[scroll-marker-group-layout-parent.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-overflow/scroll-marker-selection-picks-closest.html.ini b/tests/wpt/meta/css/css-overflow/scroll-marker-selection-picks-closest.html.ini
new file mode 100644
index 00000000000..b83e4d61988
--- /dev/null
+++ b/tests/wpt/meta/css/css-overflow/scroll-marker-selection-picks-closest.html.ini
@@ -0,0 +1,22 @@
+[scroll-marker-selection-picks-closest.html]
+  expected: TIMEOUT
+  [scroll-marker 0 selected at scrollLeft = 0]
+    expected: FAIL
+
+  [scroll-marker 0 selected just before mid point of item0]
+    expected: TIMEOUT
+
+  [scroll-marker 1 selected just after mid point of item0]
+    expected: NOTRUN
+
+  [scroll-marker 1 selected at left edge of item1]
+    expected: NOTRUN
+
+  [scroll-marker 1 selected just before mid point of item1]
+    expected: NOTRUN
+
+  [scroll-marker 2 selected just after mid point of item1]
+    expected: NOTRUN
+
+  [scroll-marker 2 selected just at left edge of item2]
+    expected: NOTRUN
diff --git a/tests/wpt/meta/css/css-overflow/scroll-markers-updated-by-programmatic-scroll.html.ini b/tests/wpt/meta/css/css-overflow/scroll-markers-updated-by-programmatic-scroll.html.ini
new file mode 100644
index 00000000000..fcc8c61d142
--- /dev/null
+++ b/tests/wpt/meta/css/css-overflow/scroll-markers-updated-by-programmatic-scroll.html.ini
@@ -0,0 +1,3 @@
+[scroll-markers-updated-by-programmatic-scroll.html]
+  [The selected ::scroll-marker is updated using the eventual scroll position for a programmatic scroll]
+    expected: FAIL
diff --git a/tests/wpt/meta/css/css-pseudo/highlight-cascade/highlight-cascade-009.html.ini b/tests/wpt/meta/css/css-pseudo/highlight-cascade/highlight-cascade-009.html.ini
new file mode 100644
index 00000000000..a22e265160c
--- /dev/null
+++ b/tests/wpt/meta/css/css-pseudo/highlight-cascade/highlight-cascade-009.html.ini
@@ -0,0 +1,6 @@
+[highlight-cascade-009.html]
+  [body ::selection does not use its own custom property]
+    expected: FAIL
+
+  [div::selection does not use its own custom property]
+    expected: FAIL
diff --git a/tests/wpt/meta/css/css-pseudo/highlight-cascade/highlight-cascade-011.html.ini b/tests/wpt/meta/css/css-pseudo/highlight-cascade/highlight-cascade-011.html.ini
new file mode 100644
index 00000000000..aeec381e7bf
--- /dev/null
+++ b/tests/wpt/meta/css/css-pseudo/highlight-cascade/highlight-cascade-011.html.ini
@@ -0,0 +1,3 @@
+[highlight-cascade-011.html]
+  [div::selection does not inherit custom properties from the highlight parent]
+    expected: FAIL
diff --git a/tests/wpt/meta/css/css-text/animations/hyphen-limit-chars-interpolation.html.ini b/tests/wpt/meta/css/css-text/animations/hyphen-limit-chars-interpolation.html.ini
new file mode 100644
index 00000000000..30f22e301d7
--- /dev/null
+++ b/tests/wpt/meta/css/css-text/animations/hyphen-limit-chars-interpolation.html.ini
@@ -0,0 +1,288 @@
+[hyphen-limit-chars-interpolation.html]
+  [CSS Transitions: property <hyphenate-limit-chars> from [5 1 2\] to [17 5 10\] at (-0.5) should be [-1 -1 -2\]]
+    expected: FAIL
+
+  [CSS Transitions: property <hyphenate-limit-chars> from [5 1 2\] to [17 5 10\] at (-0.25) should be [2 0\]]
+    expected: FAIL
+
+  [CSS Transitions: property <hyphenate-limit-chars> from [5 1 2\] to [17 5 10\] at (0) should be [5 1 2\]]
+    expected: FAIL
+
+  [CSS Transitions: property <hyphenate-limit-chars> from [5 1 2\] to [17 5 10\] at (0.25) should be [8 2 4\]]
+    expected: FAIL
+
+  [CSS Transitions: property <hyphenate-limit-chars> from [5 1 2\] to [17 5 10\] at (0.5) should be [11 3 6\]]
+    expected: FAIL
+
+  [CSS Transitions: property <hyphenate-limit-chars> from [5 1 2\] to [17 5 10\] at (0.75) should be [14 4 8\]]
+    expected: FAIL
+
+  [CSS Transitions: property <hyphenate-limit-chars> from [5 1 2\] to [17 5 10\] at (1) should be [17 5 10\]]
+    expected: FAIL
+
+  [CSS Transitions: property <hyphenate-limit-chars> from [5 1 2\] to [17 5 10\] at (1.5) should be [23 7 14\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <hyphenate-limit-chars> from [5 1 2\] to [17 5 10\] at (-0.5) should be [-1 -1 -2\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <hyphenate-limit-chars> from [5 1 2\] to [17 5 10\] at (-0.25) should be [2 0\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <hyphenate-limit-chars> from [5 1 2\] to [17 5 10\] at (0) should be [5 1 2\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <hyphenate-limit-chars> from [5 1 2\] to [17 5 10\] at (0.25) should be [8 2 4\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <hyphenate-limit-chars> from [5 1 2\] to [17 5 10\] at (0.5) should be [11 3 6\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <hyphenate-limit-chars> from [5 1 2\] to [17 5 10\] at (0.75) should be [14 4 8\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <hyphenate-limit-chars> from [5 1 2\] to [17 5 10\] at (1) should be [17 5 10\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <hyphenate-limit-chars> from [5 1 2\] to [17 5 10\] at (1.5) should be [23 7 14\]]
+    expected: FAIL
+
+  [CSS Animations: property <hyphenate-limit-chars> from [5 1 2\] to [17 5 10\] at (-0.5) should be [-1 -1 -2\]]
+    expected: FAIL
+
+  [CSS Animations: property <hyphenate-limit-chars> from [5 1 2\] to [17 5 10\] at (-0.25) should be [2 0\]]
+    expected: FAIL
+
+  [CSS Animations: property <hyphenate-limit-chars> from [5 1 2\] to [17 5 10\] at (0) should be [5 1 2\]]
+    expected: FAIL
+
+  [CSS Animations: property <hyphenate-limit-chars> from [5 1 2\] to [17 5 10\] at (0.25) should be [8 2 4\]]
+    expected: FAIL
+
+  [CSS Animations: property <hyphenate-limit-chars> from [5 1 2\] to [17 5 10\] at (0.5) should be [11 3 6\]]
+    expected: FAIL
+
+  [CSS Animations: property <hyphenate-limit-chars> from [5 1 2\] to [17 5 10\] at (0.75) should be [14 4 8\]]
+    expected: FAIL
+
+  [CSS Animations: property <hyphenate-limit-chars> from [5 1 2\] to [17 5 10\] at (1) should be [17 5 10\]]
+    expected: FAIL
+
+  [CSS Animations: property <hyphenate-limit-chars> from [5 1 2\] to [17 5 10\] at (1.5) should be [23 7 14\]]
+    expected: FAIL
+
+  [Web Animations: property <hyphenate-limit-chars> from [5 1 2\] to [17 5 10\] at (-0.5) should be [-1 -1 -2\]]
+    expected: FAIL
+
+  [Web Animations: property <hyphenate-limit-chars> from [5 1 2\] to [17 5 10\] at (-0.25) should be [2 0\]]
+    expected: FAIL
+
+  [Web Animations: property <hyphenate-limit-chars> from [5 1 2\] to [17 5 10\] at (0) should be [5 1 2\]]
+    expected: FAIL
+
+  [Web Animations: property <hyphenate-limit-chars> from [5 1 2\] to [17 5 10\] at (0.25) should be [8 2 4\]]
+    expected: FAIL
+
+  [Web Animations: property <hyphenate-limit-chars> from [5 1 2\] to [17 5 10\] at (0.5) should be [11 3 6\]]
+    expected: FAIL
+
+  [Web Animations: property <hyphenate-limit-chars> from [5 1 2\] to [17 5 10\] at (0.75) should be [14 4 8\]]
+    expected: FAIL
+
+  [Web Animations: property <hyphenate-limit-chars> from [5 1 2\] to [17 5 10\] at (1) should be [17 5 10\]]
+    expected: FAIL
+
+  [Web Animations: property <hyphenate-limit-chars> from [5 1 2\] to [17 5 10\] at (1.5) should be [23 7 14\]]
+    expected: FAIL
+
+  [CSS Transitions: property <hyphenate-limit-chars> from [auto 1 2\] to [auto 5 10\] at (-0.5) should be [auto -1 -2\]]
+    expected: FAIL
+
+  [CSS Transitions: property <hyphenate-limit-chars> from [auto 1 2\] to [auto 5 10\] at (-0.25) should be [auto 0\]]
+    expected: FAIL
+
+  [CSS Transitions: property <hyphenate-limit-chars> from [auto 1 2\] to [auto 5 10\] at (0) should be [auto 1 2\]]
+    expected: FAIL
+
+  [CSS Transitions: property <hyphenate-limit-chars> from [auto 1 2\] to [auto 5 10\] at (0.25) should be [auto 2 4\]]
+    expected: FAIL
+
+  [CSS Transitions: property <hyphenate-limit-chars> from [auto 1 2\] to [auto 5 10\] at (0.5) should be [auto 3 6\]]
+    expected: FAIL
+
+  [CSS Transitions: property <hyphenate-limit-chars> from [auto 1 2\] to [auto 5 10\] at (0.75) should be [auto 4 8\]]
+    expected: FAIL
+
+  [CSS Transitions: property <hyphenate-limit-chars> from [auto 1 2\] to [auto 5 10\] at (1) should be [auto 5 10\]]
+    expected: FAIL
+
+  [CSS Transitions: property <hyphenate-limit-chars> from [auto 1 2\] to [auto 5 10\] at (1.5) should be [auto 7 14\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <hyphenate-limit-chars> from [auto 1 2\] to [auto 5 10\] at (-0.5) should be [auto -1 -2\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <hyphenate-limit-chars> from [auto 1 2\] to [auto 5 10\] at (-0.25) should be [auto 0\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <hyphenate-limit-chars> from [auto 1 2\] to [auto 5 10\] at (0) should be [auto 1 2\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <hyphenate-limit-chars> from [auto 1 2\] to [auto 5 10\] at (0.25) should be [auto 2 4\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <hyphenate-limit-chars> from [auto 1 2\] to [auto 5 10\] at (0.5) should be [auto 3 6\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <hyphenate-limit-chars> from [auto 1 2\] to [auto 5 10\] at (0.75) should be [auto 4 8\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <hyphenate-limit-chars> from [auto 1 2\] to [auto 5 10\] at (1) should be [auto 5 10\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <hyphenate-limit-chars> from [auto 1 2\] to [auto 5 10\] at (1.5) should be [auto 7 14\]]
+    expected: FAIL
+
+  [CSS Animations: property <hyphenate-limit-chars> from [auto 1 2\] to [auto 5 10\] at (-0.5) should be [auto -1 -2\]]
+    expected: FAIL
+
+  [CSS Animations: property <hyphenate-limit-chars> from [auto 1 2\] to [auto 5 10\] at (-0.25) should be [auto 0\]]
+    expected: FAIL
+
+  [CSS Animations: property <hyphenate-limit-chars> from [auto 1 2\] to [auto 5 10\] at (0) should be [auto 1 2\]]
+    expected: FAIL
+
+  [CSS Animations: property <hyphenate-limit-chars> from [auto 1 2\] to [auto 5 10\] at (0.25) should be [auto 2 4\]]
+    expected: FAIL
+
+  [CSS Animations: property <hyphenate-limit-chars> from [auto 1 2\] to [auto 5 10\] at (0.5) should be [auto 3 6\]]
+    expected: FAIL
+
+  [CSS Animations: property <hyphenate-limit-chars> from [auto 1 2\] to [auto 5 10\] at (0.75) should be [auto 4 8\]]
+    expected: FAIL
+
+  [CSS Animations: property <hyphenate-limit-chars> from [auto 1 2\] to [auto 5 10\] at (1) should be [auto 5 10\]]
+    expected: FAIL
+
+  [CSS Animations: property <hyphenate-limit-chars> from [auto 1 2\] to [auto 5 10\] at (1.5) should be [auto 7 14\]]
+    expected: FAIL
+
+  [Web Animations: property <hyphenate-limit-chars> from [auto 1 2\] to [auto 5 10\] at (-0.5) should be [auto -1 -2\]]
+    expected: FAIL
+
+  [Web Animations: property <hyphenate-limit-chars> from [auto 1 2\] to [auto 5 10\] at (-0.25) should be [auto 0\]]
+    expected: FAIL
+
+  [Web Animations: property <hyphenate-limit-chars> from [auto 1 2\] to [auto 5 10\] at (0) should be [auto 1 2\]]
+    expected: FAIL
+
+  [Web Animations: property <hyphenate-limit-chars> from [auto 1 2\] to [auto 5 10\] at (0.25) should be [auto 2 4\]]
+    expected: FAIL
+
+  [Web Animations: property <hyphenate-limit-chars> from [auto 1 2\] to [auto 5 10\] at (0.5) should be [auto 3 6\]]
+    expected: FAIL
+
+  [Web Animations: property <hyphenate-limit-chars> from [auto 1 2\] to [auto 5 10\] at (0.75) should be [auto 4 8\]]
+    expected: FAIL
+
+  [Web Animations: property <hyphenate-limit-chars> from [auto 1 2\] to [auto 5 10\] at (1) should be [auto 5 10\]]
+    expected: FAIL
+
+  [Web Animations: property <hyphenate-limit-chars> from [auto 1 2\] to [auto 5 10\] at (1.5) should be [auto 7 14\]]
+    expected: FAIL
+
+  [CSS Transitions: property <hyphenate-limit-chars> from [5\] to [17\] at (-0.5) should be [-1 auto\]]
+    expected: FAIL
+
+  [CSS Transitions: property <hyphenate-limit-chars> from [5\] to [17\] at (-0.25) should be [2 auto\]]
+    expected: FAIL
+
+  [CSS Transitions: property <hyphenate-limit-chars> from [5\] to [17\] at (0) should be [5 auto\]]
+    expected: FAIL
+
+  [CSS Transitions: property <hyphenate-limit-chars> from [5\] to [17\] at (0.25) should be [8 auto\]]
+    expected: FAIL
+
+  [CSS Transitions: property <hyphenate-limit-chars> from [5\] to [17\] at (0.5) should be [11 auto\]]
+    expected: FAIL
+
+  [CSS Transitions: property <hyphenate-limit-chars> from [5\] to [17\] at (0.75) should be [14 auto\]]
+    expected: FAIL
+
+  [CSS Transitions: property <hyphenate-limit-chars> from [5\] to [17\] at (1) should be [17 auto\]]
+    expected: FAIL
+
+  [CSS Transitions: property <hyphenate-limit-chars> from [5\] to [17\] at (1.5) should be [23 auto\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <hyphenate-limit-chars> from [5\] to [17\] at (-0.5) should be [-1 auto\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <hyphenate-limit-chars> from [5\] to [17\] at (-0.25) should be [2 auto\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <hyphenate-limit-chars> from [5\] to [17\] at (0) should be [5 auto\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <hyphenate-limit-chars> from [5\] to [17\] at (0.25) should be [8 auto\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <hyphenate-limit-chars> from [5\] to [17\] at (0.5) should be [11 auto\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <hyphenate-limit-chars> from [5\] to [17\] at (0.75) should be [14 auto\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <hyphenate-limit-chars> from [5\] to [17\] at (1) should be [17 auto\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <hyphenate-limit-chars> from [5\] to [17\] at (1.5) should be [23 auto\]]
+    expected: FAIL
+
+  [CSS Animations: property <hyphenate-limit-chars> from [5\] to [17\] at (-0.5) should be [-1 auto\]]
+    expected: FAIL
+
+  [CSS Animations: property <hyphenate-limit-chars> from [5\] to [17\] at (-0.25) should be [2 auto\]]
+    expected: FAIL
+
+  [CSS Animations: property <hyphenate-limit-chars> from [5\] to [17\] at (0) should be [5 auto\]]
+    expected: FAIL
+
+  [CSS Animations: property <hyphenate-limit-chars> from [5\] to [17\] at (0.25) should be [8 auto\]]
+    expected: FAIL
+
+  [CSS Animations: property <hyphenate-limit-chars> from [5\] to [17\] at (0.5) should be [11 auto\]]
+    expected: FAIL
+
+  [CSS Animations: property <hyphenate-limit-chars> from [5\] to [17\] at (0.75) should be [14 auto\]]
+    expected: FAIL
+
+  [CSS Animations: property <hyphenate-limit-chars> from [5\] to [17\] at (1) should be [17 auto\]]
+    expected: FAIL
+
+  [CSS Animations: property <hyphenate-limit-chars> from [5\] to [17\] at (1.5) should be [23 auto\]]
+    expected: FAIL
+
+  [Web Animations: property <hyphenate-limit-chars> from [5\] to [17\] at (-0.5) should be [-1 auto\]]
+    expected: FAIL
+
+  [Web Animations: property <hyphenate-limit-chars> from [5\] to [17\] at (-0.25) should be [2 auto\]]
+    expected: FAIL
+
+  [Web Animations: property <hyphenate-limit-chars> from [5\] to [17\] at (0) should be [5 auto\]]
+    expected: FAIL
+
+  [Web Animations: property <hyphenate-limit-chars> from [5\] to [17\] at (0.25) should be [8 auto\]]
+    expected: FAIL
+
+  [Web Animations: property <hyphenate-limit-chars> from [5\] to [17\] at (0.5) should be [11 auto\]]
+    expected: FAIL
+
+  [Web Animations: property <hyphenate-limit-chars> from [5\] to [17\] at (0.75) should be [14 auto\]]
+    expected: FAIL
+
+  [Web Animations: property <hyphenate-limit-chars> from [5\] to [17\] at (1) should be [17 auto\]]
+    expected: FAIL
+
+  [Web Animations: property <hyphenate-limit-chars> from [5\] to [17\] at (1.5) should be [23 auto\]]
+    expected: FAIL
diff --git a/tests/wpt/meta/css/css-text/line-breaking/segment-break-transformation-currency-001.html.ini b/tests/wpt/meta/css/css-text/line-breaking/segment-break-transformation-currency-001.html.ini
new file mode 100644
index 00000000000..b31b030e960
--- /dev/null
+++ b/tests/wpt/meta/css/css-text/line-breaking/segment-break-transformation-currency-001.html.ini
@@ -0,0 +1,2 @@
+[segment-break-transformation-currency-001.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-text/line-breaking/segment-break-transformation-punctuation-002.html.ini b/tests/wpt/meta/css/css-text/line-breaking/segment-break-transformation-punctuation-002.html.ini
new file mode 100644
index 00000000000..2315073a17a
--- /dev/null
+++ b/tests/wpt/meta/css/css-text/line-breaking/segment-break-transformation-punctuation-002.html.ini
@@ -0,0 +1,2 @@
+[segment-break-transformation-punctuation-002.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-text/parsing/hyphenate-limit-chars-computed.html.ini b/tests/wpt/meta/css/css-text/parsing/hyphenate-limit-chars-computed.html.ini
index c1cddc99f61..8b14b402685 100644
--- a/tests/wpt/meta/css/css-text/parsing/hyphenate-limit-chars-computed.html.ini
+++ b/tests/wpt/meta/css/css-text/parsing/hyphenate-limit-chars-computed.html.ini
@@ -28,3 +28,9 @@
 
   [Property hyphenate-limit-chars value 'auto auto 2']
     expected: FAIL
+
+  [Property hyphenate-limit-chars value 'auto']
+    expected: FAIL
+
+  [Property hyphenate-limit-chars value 'auto 2 2']
+    expected: FAIL
diff --git a/tests/wpt/meta/css/css-text/parsing/hyphenate-limit-chars-valid.html.ini b/tests/wpt/meta/css/css-text/parsing/hyphenate-limit-chars-valid.html.ini
index 91a7ce28696..65b74941507 100644
--- a/tests/wpt/meta/css/css-text/parsing/hyphenate-limit-chars-valid.html.ini
+++ b/tests/wpt/meta/css/css-text/parsing/hyphenate-limit-chars-valid.html.ini
@@ -25,3 +25,9 @@
 
   [e.style['hyphenate-limit-chars'\] = "auto auto 2" should set the property value]
     expected: FAIL
+
+  [e.style['hyphenate-limit-chars'\] = "5 2 2" should set the property value]
+    expected: FAIL
+
+  [e.style['hyphenate-limit-chars'\] = "auto 2 2" should set the property value]
+    expected: FAIL
diff --git a/tests/wpt/meta/css/css-text/white-space/seg-break-transformation-004.tentative.html.ini b/tests/wpt/meta/css/css-text/white-space/seg-break-transformation-004.tentative.html.ini
index 3d66d0b5240..0e6cbe6fa4c 100644
--- a/tests/wpt/meta/css/css-text/white-space/seg-break-transformation-004.tentative.html.ini
+++ b/tests/wpt/meta/css/css-text/white-space/seg-break-transformation-004.tentative.html.ini
@@ -35,3 +35,38 @@
   [multiple linebreaks ２４₩]
     expected: FAIL
 
+  [linebreak only ﾉｺﾘ２４]
+    expected: FAIL
+
+  [spaces linebreak ﾉｺﾘ２４]
+    expected: FAIL
+
+  [linebreak spaces ﾉｺﾘ２４]
+    expected: FAIL
+
+  [spaces linebreak spaces ﾉｺﾘ２４]
+    expected: FAIL
+
+  [multiple linebreaks ﾉｺﾘ２４]
+    expected: FAIL
+
+  [multiple linebreaks + spaces ﾉｺﾘ２４]
+    expected: FAIL
+
+  [linebreak only ２４ｺ]
+    expected: FAIL
+
+  [spaces linebreak ２４ｺ]
+    expected: FAIL
+
+  [linebreak spaces ２４ｺ]
+    expected: FAIL
+
+  [spaces linebreak spaces ２４ｺ]
+    expected: FAIL
+
+  [multiple linebreaks ２４ｺ]
+    expected: FAIL
+
+  [multiple linebreaks + spaces ２４ｺ]
+    expected: FAIL
diff --git a/tests/wpt/meta/css/css-ui/interactivity-inert-find.html.ini b/tests/wpt/meta/css/css-ui/interactivity-inert-find.html.ini
new file mode 100644
index 00000000000..175ce2c531f
--- /dev/null
+++ b/tests/wpt/meta/css/css-ui/interactivity-inert-find.html.ini
@@ -0,0 +1,9 @@
+[interactivity-inert-find.html]
+  [Find non-inert text]
+    expected: FAIL
+
+  [Fail to find inert text]
+    expected: FAIL
+
+  [Find non-inert text inside inert ancestor]
+    expected: FAIL
diff --git a/tests/wpt/meta/css/css-ui/interactivity-inert-modal-dialog-ua.html.ini b/tests/wpt/meta/css/css-ui/interactivity-inert-modal-dialog-ua.html.ini
index 5a488db36a3..981535ccdb2 100644
--- a/tests/wpt/meta/css/css-ui/interactivity-inert-modal-dialog-ua.html.ini
+++ b/tests/wpt/meta/css/css-ui/interactivity-inert-modal-dialog-ua.html.ini
@@ -13,3 +13,6 @@
 
   [Author 'interactivity:inert' overrides UA dialog:modal 'interactivity:auto' rule]
     expected: FAIL
+
+  [UA [inert\] rule wins over UA dialog:modal inert rule]
+    expected: FAIL
diff --git a/tests/wpt/meta/css/css-values/attr-cycle.tentative.html.ini b/tests/wpt/meta/css/css-values/attr-cycle.html.ini
similarity index 97%
rename from tests/wpt/meta/css/css-values/attr-cycle.tentative.html.ini
rename to tests/wpt/meta/css/css-values/attr-cycle.html.ini
index 3be808c8bbd..4fd32c202c1 100644
--- a/tests/wpt/meta/css/css-values/attr-cycle.tentative.html.ini
+++ b/tests/wpt/meta/css/css-values/attr-cycle.html.ini
@@ -1,4 +1,4 @@
-[attr-cycle.tentative.html]
+[attr-cycle.html]
   [CSS Values and Units Test: attr]
     expected: FAIL
 
diff --git a/tests/wpt/meta/css/cssom/adoptedstylesheets-adopt-link.tentative.html.ini b/tests/wpt/meta/css/cssom/adoptedstylesheets-adopt-link.tentative.html.ini
new file mode 100644
index 00000000000..1c84b27f968
--- /dev/null
+++ b/tests/wpt/meta/css/cssom/adoptedstylesheets-adopt-link.tentative.html.ini
@@ -0,0 +1,2 @@
+[adoptedstylesheets-adopt-link.tentative.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/cssom/adoptedstylesheets-adopt-style-subresource.tentative.html.ini b/tests/wpt/meta/css/cssom/adoptedstylesheets-adopt-style-subresource.tentative.html.ini
new file mode 100644
index 00000000000..1d7f3a0c049
--- /dev/null
+++ b/tests/wpt/meta/css/cssom/adoptedstylesheets-adopt-style-subresource.tentative.html.ini
@@ -0,0 +1,2 @@
+[adoptedstylesheets-adopt-style-subresource.tentative.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/cssom/adoptedstylesheets-adopt-style.tentative.html.ini b/tests/wpt/meta/css/cssom/adoptedstylesheets-adopt-style.tentative.html.ini
new file mode 100644
index 00000000000..8535d88c48c
--- /dev/null
+++ b/tests/wpt/meta/css/cssom/adoptedstylesheets-adopt-style.tentative.html.ini
@@ -0,0 +1,2 @@
+[adoptedstylesheets-adopt-style.tentative.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/cssom/cssom-pagerule.html.ini b/tests/wpt/meta/css/cssom/cssom-pagerule.html.ini
index a8608187143..5a69af55729 100644
--- a/tests/wpt/meta/css/cssom/cssom-pagerule.html.ini
+++ b/tests/wpt/meta/css/cssom/cssom-pagerule.html.ini
@@ -34,3 +34,33 @@
 
   [Cannot set selectorText to invalid pseudo page]
     expected: FAIL
+
+  [Page selector 'cssText' is initially the @page { }]
+    expected: FAIL
+
+  [Set cssText to :left pseudo page]
+    expected: FAIL
+
+  [Set cssText to named page]
+    expected: FAIL
+
+  [Set cssText to named page with :first pseudo page]
+    expected: FAIL
+
+  [Set cssText to named page with case insensitive :first pseudo page]
+    expected: FAIL
+
+  [Set cssText to named page with two :first pseudo page]
+    expected: FAIL
+
+  [Set cssText to named page with pseudo pages of :first, :left, :right, :first in order.]
+    expected: FAIL
+
+  [Cannot set cssText to named page with pseudo, whitespace between - return default @page { }]
+    expected: FAIL
+
+  [Cannot set cssText to two pseudos, whitespace between - return default @page { }]
+    expected: FAIL
+
+  [Cannot set cssText to invalid pseudo page - return default @page { }]
+    expected: FAIL
diff --git a/tests/wpt/meta/css/selectors/parsing/parse-slotted.html.ini b/tests/wpt/meta/css/selectors/parsing/parse-slotted.html.ini
index 62fae425194..9396ed6dae8 100644
--- a/tests/wpt/meta/css/selectors/parsing/parse-slotted.html.ini
+++ b/tests/wpt/meta/css/selectors/parsing/parse-slotted.html.ini
@@ -22,3 +22,6 @@
 
   ["::slotted(:hover)" should be a valid selector]
     expected: FAIL
+
+  ["::slotted(:has(:first-child:last-child))" should be a valid selector]
+    expected: FAIL
diff --git a/tests/wpt/meta/custom-elements/form-associated/ElementInternals-reportValidity-delegatesFocus.html.ini b/tests/wpt/meta/custom-elements/form-associated/ElementInternals-reportValidity-delegatesFocus.html.ini
new file mode 100644
index 00000000000..abc28e1624f
--- /dev/null
+++ b/tests/wpt/meta/custom-elements/form-associated/ElementInternals-reportValidity-delegatesFocus.html.ini
@@ -0,0 +1,2 @@
+[ElementInternals-reportValidity-delegatesFocus.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/dom/observable/tentative/observable-from.any.js.ini b/tests/wpt/meta/dom/observable/tentative/observable-from.any.js.ini
index 8064d52e0c7..d3e8c846376 100644
--- a/tests/wpt/meta/dom/observable/tentative/observable-from.any.js.ini
+++ b/tests/wpt/meta/dom/observable/tentative/observable-from.any.js.ini
@@ -140,6 +140,12 @@
   [from(): [Symbol.iterator\] returns null AFTER SUBSCRIBE throws]
     expected: FAIL
 
+  [Invalid async iterator protocol error is surfaced before Subscriber#signal is consulted]
+    expected: FAIL
+
+  [Invalid iterator protocol error is surfaced before Subscriber#signal is consulted]
+    expected: FAIL
+
 
 [observable-from.any.html]
   [from(): Observable.from() is a function]
@@ -282,3 +288,9 @@
 
   [from(): [Symbol.iterator\] returns null AFTER SUBSCRIBE throws]
     expected: FAIL
+
+  [Invalid async iterator protocol error is surfaced before Subscriber#signal is consulted]
+    expected: FAIL
+
+  [Invalid iterator protocol error is surfaced before Subscriber#signal is consulted]
+    expected: FAIL
diff --git a/tests/wpt/meta/fetch/fetch-later/quota/same-origin-iframe/empty-payload.tentative.https.window.js.ini b/tests/wpt/meta/fetch/fetch-later/quota/same-origin-iframe/empty-payload.tentative.https.window.js.ini
index ff382468d24..6b04dde241c 100644
--- a/tests/wpt/meta/fetch/fetch-later/quota/same-origin-iframe/empty-payload.tentative.https.window.js.ini
+++ b/tests/wpt/meta/fetch/fetch-later/quota/same-origin-iframe/empty-payload.tentative.https.window.js.ini
@@ -1,4 +1,5 @@
 [empty-payload.tentative.https.window.html]
+  expected: ERROR
   [fetchLater() does not accept empty POST request body of String in same-origin iframe.]
     expected: FAIL
 
diff --git a/tests/wpt/meta/fetch/fetch-later/quota/same-origin-iframe/multiple-iframes.tentative.https.window.js.ini b/tests/wpt/meta/fetch/fetch-later/quota/same-origin-iframe/multiple-iframes.tentative.https.window.js.ini
index 20dff54a6b2..bb0f7d2f7cb 100644
--- a/tests/wpt/meta/fetch/fetch-later/quota/same-origin-iframe/multiple-iframes.tentative.https.window.js.ini
+++ b/tests/wpt/meta/fetch/fetch-later/quota/same-origin-iframe/multiple-iframes.tentative.https.window.js.ini
@@ -1,3 +1,4 @@
 [multiple-iframes.tentative.https.window.html]
+  expected: ERROR
   [fetchLater() request quota are shared by same-origin iframes and root.]
     expected: FAIL
diff --git a/tests/wpt/meta/fetch/metadata/generated/css-font-face.https.sub.tentative.html.ini b/tests/wpt/meta/fetch/metadata/generated/css-font-face.https.sub.tentative.html.ini
index d471ef76873..c7e0d7d20e9 100644
--- a/tests/wpt/meta/fetch/metadata/generated/css-font-face.https.sub.tentative.html.ini
+++ b/tests/wpt/meta/fetch/metadata/generated/css-font-face.https.sub.tentative.html.ini
@@ -52,6 +52,3 @@
 
   [sec-fetch-storage-access - Same site]
     expected: FAIL
-
-  [sec-fetch-storage-access - Cross-site]
-    expected: FAIL
diff --git a/tests/wpt/meta/html/browsers/browsing-the-web/navigating-across-documents/initial-empty-document/iframe-nosrc.html.ini b/tests/wpt/meta/html/browsers/browsing-the-web/navigating-across-documents/initial-empty-document/iframe-nosrc.html.ini
index d5f4fa2f799..2241163d563 100644
--- a/tests/wpt/meta/html/browsers/browsing-the-web/navigating-across-documents/initial-empty-document/iframe-nosrc.html.ini
+++ b/tests/wpt/meta/html/browsers/browsing-the-web/navigating-across-documents/initial-empty-document/iframe-nosrc.html.ini
@@ -4,3 +4,6 @@
 
   [form submission]
     expected: FAIL
+
+  [link click]
+    expected: FAIL
diff --git a/tests/wpt/meta/html/browsers/browsing-the-web/navigating-across-documents/initial-empty-document/load-pageshow-events-window-open.html.ini b/tests/wpt/meta/html/browsers/browsing-the-web/navigating-across-documents/initial-empty-document/load-pageshow-events-window-open.html.ini
index 2be1dd32656..aef765c27f4 100644
--- a/tests/wpt/meta/html/browsers/browsing-the-web/navigating-across-documents/initial-empty-document/load-pageshow-events-window-open.html.ini
+++ b/tests/wpt/meta/html/browsers/browsing-the-web/navigating-across-documents/initial-empty-document/load-pageshow-events-window-open.html.ini
@@ -13,6 +13,3 @@
 
   [load event does not fire on window.open('about:blank?foo')]
     expected: FAIL
-
-  [load event does not fire on window.open('about:blank')]
-    expected: FAIL
diff --git a/tests/wpt/meta/html/browsers/history/the-history-interface/traverse_the_history_4.html.ini b/tests/wpt/meta/html/browsers/history/the-history-interface/traverse_the_history_4.html.ini
deleted file mode 100644
index d6188c03424..00000000000
--- a/tests/wpt/meta/html/browsers/history/the-history-interface/traverse_the_history_4.html.ini
+++ /dev/null
@@ -1,3 +0,0 @@
-[traverse_the_history_4.html]
-  [Multiple history traversals, last would be aborted]
-    expected: FAIL
diff --git a/tests/wpt/meta/html/canvas/offscreen/manual/context-attributes/getContextAttributes.html.ini b/tests/wpt/meta/html/canvas/offscreen/manual/context-attributes/getContextAttributes.html.ini
new file mode 100644
index 00000000000..e901056f101
--- /dev/null
+++ b/tests/wpt/meta/html/canvas/offscreen/manual/context-attributes/getContextAttributes.html.ini
@@ -0,0 +1,27 @@
+[getContextAttributes.html]
+  [Test default offscreen context creation attributes]
+    expected: FAIL
+
+  [Test offscreen context creation attributes alpha: true]
+    expected: FAIL
+
+  [Test offscreen context creation attributes alpha: false]
+    expected: FAIL
+
+  [Test offscreen context creation attributes colorSpace: 'srgb']
+    expected: FAIL
+
+  [Test offscreen context creation attributes colorSpace: 'display-p3']
+    expected: FAIL
+
+  [Test offscreen context creation attributes desynchronized: true]
+    expected: FAIL
+
+  [Test offscreen context creation attributes desynchronized: false]
+    expected: FAIL
+
+  [Test offscreen context creation attributes willReadFrequently: true]
+    expected: FAIL
+
+  [Test offscreen context creation attributes willReadFrequently: false]
+    expected: FAIL
diff --git a/tests/wpt/meta/html/document-isolation-policy/reporting-cache-storage-corp.tentative.https.html.ini b/tests/wpt/meta/html/document-isolation-policy/reporting-cache-storage-corp.tentative.https.html.ini
new file mode 100644
index 00000000000..ce3332b083e
--- /dev/null
+++ b/tests/wpt/meta/html/document-isolation-policy/reporting-cache-storage-corp.tentative.https.html.ini
@@ -0,0 +1,36 @@
+[reporting-cache-storage-corp.tentative.https.html]
+  [[document\] same-origin]
+    expected: FAIL
+
+  [[document\] blocked due to DIP]
+    expected: FAIL
+
+  [[document\] blocked during redirect]
+    expected: FAIL
+
+  [[dedicated worker\] same-origin]
+    expected: FAIL
+
+  [[dedicated worker\] blocked due to DIP]
+    expected: FAIL
+
+  [[dedicated worker\] blocked during redirect]
+    expected: FAIL
+
+  [[shared worker\] same-origin]
+    expected: FAIL
+
+  [[shared worker\] blocked due to DIP]
+    expected: FAIL
+
+  [[shared worker\] blocked during redirect]
+    expected: FAIL
+
+  [[document with service worker\] same-origin]
+    expected: FAIL
+
+  [[document with service worker\] blocked due to DIP]
+    expected: FAIL
+
+  [[document with service worker\] blocked during redirect]
+    expected: FAIL
diff --git a/tests/wpt/meta/html/dom/idlharness.https.html.ini b/tests/wpt/meta/html/dom/idlharness.https.html.ini
index 13460de7f7a..12e5b049bd5 100644
--- a/tests/wpt/meta/html/dom/idlharness.https.html.ini
+++ b/tests/wpt/meta/html/dom/idlharness.https.html.ini
@@ -5921,6 +5921,9 @@
   [OffscreenCanvasRenderingContext2D interface: operation getContextAttributes()]
     expected: FAIL
 
+  [NavigateEvent interface: attribute sourceElement]
+    expected: FAIL
+
 
 [idlharness.https.html?include=HTML.+]
   [HTMLAllCollection interface: existence and properties of interface object]
diff --git a/tests/wpt/meta/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-1.html.ini b/tests/wpt/meta/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-1.html.ini
index d7e7d1b9815..24903b5f66f 100644
--- a/tests/wpt/meta/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-1.html.ini
+++ b/tests/wpt/meta/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-1.html.ini
@@ -1,4 +1,4 @@
 [iframe_sandbox_popups_escaping-1.html]
-  expected: CRASH
+  expected: TIMEOUT
   [Check that popups from a sandboxed iframe escape the sandbox if\n       allow-popups-to-escape-sandbox is used]
     expected: TIMEOUT
diff --git a/tests/wpt/meta/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-2.html.ini b/tests/wpt/meta/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-2.html.ini
index 26704422bbe..68203d2a082 100644
--- a/tests/wpt/meta/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-2.html.ini
+++ b/tests/wpt/meta/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-2.html.ini
@@ -1,4 +1,4 @@
 [iframe_sandbox_popups_escaping-2.html]
-  expected: TIMEOUT
+  expected: CRASH
   [Check that popups from a sandboxed iframe escape the sandbox if\n       allow-popups-to-escape-sandbox is used]
     expected: TIMEOUT
diff --git a/tests/wpt/meta/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-3.html.ini b/tests/wpt/meta/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-3.html.ini
index 7da2bc5ac80..ef88bb2e2fd 100644
--- a/tests/wpt/meta/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-3.html.ini
+++ b/tests/wpt/meta/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-3.html.ini
@@ -1,4 +1,4 @@
 [iframe_sandbox_popups_escaping-3.html]
   expected: TIMEOUT
   [Check that popups from a sandboxed iframe escape the sandbox if\n       allow-popups-to-escape-sandbox is used]
-    expected: TIMEOUT
+    expected: FAIL
diff --git a/tests/wpt/meta/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-2.html.ini b/tests/wpt/meta/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-2.html.ini
index a6591b318dc..c6f1e5d7d84 100644
--- a/tests/wpt/meta/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-2.html.ini
+++ b/tests/wpt/meta/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-2.html.ini
@@ -1,4 +1,4 @@
 [iframe_sandbox_popups_nonescaping-2.html]
   expected: TIMEOUT
   [Check that popups from a sandboxed iframe do not escape the sandbox]
-    expected: FAIL
+    expected: NOTRUN
diff --git a/tests/wpt/meta/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-3.html.ini b/tests/wpt/meta/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-3.html.ini
index a24e565bbce..d5fd800f09d 100644
--- a/tests/wpt/meta/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-3.html.ini
+++ b/tests/wpt/meta/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-3.html.ini
@@ -1,4 +1,4 @@
 [iframe_sandbox_popups_nonescaping-3.html]
-  expected: CRASH
+  expected: TIMEOUT
   [Check that popups from a sandboxed iframe do not escape the sandbox]
-    expected: FAIL
+    expected: NOTRUN
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
new file mode 100644
index 00000000000..0244e4d1673
--- /dev/null
+++ b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/focus-ring-rendering.tentative.html.ini
@@ -0,0 +1,2 @@
+[focus-ring-rendering.tentative.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/native-popup-with-wrapper-div.tentative.html.ini b/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/native-popup-with-wrapper-div.tentative.html.ini
deleted file mode 100644
index 442e9ff8098..00000000000
--- a/tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/native-popup-with-wrapper-div.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[native-popup-with-wrapper-div.tentative.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/meta/html/semantics/interactive-elements/the-dialog-element/toggle-events.tentative.html.ini b/tests/wpt/meta/html/semantics/interactive-elements/the-dialog-element/toggle-events.html.ini
similarity index 97%
rename from tests/wpt/meta/html/semantics/interactive-elements/the-dialog-element/toggle-events.tentative.html.ini
rename to tests/wpt/meta/html/semantics/interactive-elements/the-dialog-element/toggle-events.html.ini
index d566064c0e0..8988717e2f2 100644
--- a/tests/wpt/meta/html/semantics/interactive-elements/the-dialog-element/toggle-events.tentative.html.ini
+++ b/tests/wpt/meta/html/semantics/interactive-elements/the-dialog-element/toggle-events.html.ini
@@ -1,4 +1,4 @@
-[toggle-events.tentative.html]
+[toggle-events.html]
   [dialog.show() should fire beforetoggle and toggle events.]
     expected: FAIL
 
@@ -8,6 +8,12 @@
   [dialog.show() should coalesce asynchronous toggle events.]
     expected: FAIL
 
+  [dialog.show() should not open if beforetoggle removes]
+    expected: FAIL
+
+  [dialog.show() should not open if beforetoggle calls showPopover]
+    expected: FAIL
+
   [dialog.showModal() should fire beforetoggle and toggle events.]
     expected: FAIL
 
@@ -17,12 +23,6 @@
   [dialog.showModal() should coalesce asynchronous toggle events.]
     expected: FAIL
 
-  [dialog.show() should not open if beforetoggle removes]
-    expected: FAIL
-
-  [dialog.show() should not open if beforetoggle calls showPopover]
-    expected: FAIL
-
   [dialog.showModal() should not double-set open/close if beforetoggle re-opens]
     expected: FAIL
 
diff --git a/tests/wpt/meta/html/semantics/the-button-element/interest-target/interesttarget-css-shorthands.tentative.html.ini b/tests/wpt/meta/html/semantics/the-button-element/interest-target/interesttarget-css-shorthands.tentative.html.ini
new file mode 100644
index 00000000000..f4394a608e0
--- /dev/null
+++ b/tests/wpt/meta/html/semantics/the-button-element/interest-target/interesttarget-css-shorthands.tentative.html.ini
@@ -0,0 +1,27 @@
+[interesttarget-css-shorthands.tentative.html]
+  [e.style['interest-target-delay'\] = "0.23s 450ms" should set interest-target-hide-delay]
+    expected: FAIL
+
+  [e.style['interest-target-delay'\] = "0.23s 450ms" should set interest-target-show-delay]
+    expected: FAIL
+
+  [e.style['interest-target-delay'\] = "0.23s 450ms" should not set unrelated longhands]
+    expected: FAIL
+
+  [e.style['interest-target-delay'\] = "0.23s" should set interest-target-hide-delay]
+    expected: FAIL
+
+  [e.style['interest-target-delay'\] = "0.23s" should set interest-target-show-delay]
+    expected: FAIL
+
+  [e.style['interest-target-delay'\] = "0.23s" should not set unrelated longhands]
+    expected: FAIL
+
+  [e.style['interest-target-delay'\] = "450ms" should set interest-target-hide-delay]
+    expected: FAIL
+
+  [e.style['interest-target-delay'\] = "450ms" should set interest-target-show-delay]
+    expected: FAIL
+
+  [e.style['interest-target-delay'\] = "450ms" should not set unrelated longhands]
+    expected: FAIL
diff --git a/tests/wpt/meta/mediasession/setactionhandler.html.ini b/tests/wpt/meta/mediasession/setactionhandler.html.ini
index 463ddfe654a..7d80c0f82b9 100644
--- a/tests/wpt/meta/mediasession/setactionhandler.html.ini
+++ b/tests/wpt/meta/mediasession/setactionhandler.html.ini
@@ -19,3 +19,9 @@
 
   [Test that setActionHandler("enterpictureinpicture") succeeds]
     expected: FAIL
+
+  [Test that setActionHandler("togglescreenshare") succeeds]
+    expected: FAIL
+
+  [Test that setActionHandler("voiceactivity") succeeds]
+    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 484aa044de7..3f58e17f290 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
@@ -8,23 +8,5 @@
   [Reload navigationStart > Original navigationStart]
     expected: FAIL
 
-  [Reload domInteractive > Original domInteractive]
-    expected: FAIL
-
-  [Reload domContentLoadedEventStart > Original domContentLoadedEventStart]
-    expected: FAIL
-
-  [Reload fetchStart > Original fetchStart]
-    expected: FAIL
-
-  [Reload domComplete > Original domComplete]
-    expected: FAIL
-
   [Reload domContentLoadedEventEnd > Original domContentLoadedEventEnd]
     expected: FAIL
-
-  [Reload loadEventEnd > Original loadEventEnd]
-    expected: FAIL
-
-  [Reload loadEventStart > Original loadEventStart]
-    expected: FAIL
diff --git a/tests/wpt/meta/subresource-integrity/signatures/tentative/inline.html.ini b/tests/wpt/meta/subresource-integrity/signatures/tentative/inline.html.ini
index 059a37c90c2..8c21dafb016 100644
--- a/tests/wpt/meta/subresource-integrity/signatures/tentative/inline.html.ini
+++ b/tests/wpt/meta/subresource-integrity/signatures/tentative/inline.html.ini
@@ -1,4 +1,5 @@
 [inline.html]
+  expected: TIMEOUT
   [valid `signature`, no `integrity` => blocked]
     expected: FAIL
 
@@ -10,3 +11,9 @@
 
   [multiple `signature`, invalid `integrity` => blocked]
     expected: FAIL
+
+  [SVG valid `signature`, valid `integrity` => executes]
+    expected: NOTRUN
+
+  [SVG valid `signature`, multiple `integrity` => executes]
+    expected: NOTRUN
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/docker.yml b/tests/wpt/tests/.github/workflows/docker.yml
index 99bb68b9594..b46c4fc3a02 100644
--- a/tests/wpt/tests/.github/workflows/docker.yml
+++ b/tests/wpt/tests/.github/workflows/docker.yml
@@ -40,7 +40,7 @@ jobs:
             latest
             type=raw,value=${{ inputs.tag }}
       - name: Build and push the Docker image
-        uses: docker/build-push-action@67a2d409c0a876cbe6b11854e3e25193efe4e62d # v6.12.0
+        uses: docker/build-push-action@ca877d9245402d1537745e0e356eab47c3520991 # v6.13.0
         with:
           context: ./tools/docker
           push: true
diff --git a/tests/wpt/tests/IndexedDB/idbcursor-advance-continue-async.any.js b/tests/wpt/tests/IndexedDB/idbcursor-advance-continue-async.any.js
new file mode 100644
index 00000000000..30a5d8180d8
--- /dev/null
+++ b/tests/wpt/tests/IndexedDB/idbcursor-advance-continue-async.any.js
@@ -0,0 +1,167 @@
+// META: global=window,worker
+// META: title=IDBCursor asyncness
+// META: script=resources/support.js
+
+'use strict';
+
+function upgrade_func(t, db, tx) {
+  let objStore = db.createObjectStore('test');
+  objStore.createIndex('index', '');
+
+  objStore.add('data', 1);
+  objStore.add('data2', 2);
+}
+
+indexeddb_test(upgrade_func, function(t, db) {
+  let count = 0;
+  let rq = db.transaction('test', 'readonly').objectStore('test').openCursor();
+
+  rq.onsuccess = t.step_func(function(e) {
+    if (!e.target.result) {
+      assert_equals(count, 2, 'count');
+      t.done();
+      return;
+    }
+    let cursor = e.target.result;
+
+    switch (count) {
+      case 0:
+        assert_equals(cursor.value, 'data');
+        assert_equals(cursor.key, 1);
+        cursor.advance(1);
+        assert_equals(cursor.value, 'data');
+        assert_equals(cursor.key, 1);
+        break;
+
+      case 1:
+        assert_equals(cursor.value, 'data2');
+        assert_equals(cursor.key, 2);
+        cursor.advance(1);
+        assert_equals(cursor.value, 'data2');
+        assert_equals(cursor.key, 2);
+        break;
+
+      default:
+        assert_unreached('Unexpected count: ' + count);
+    }
+
+    count++;
+  });
+  rq.onerror = t.unreached_func('unexpected error');
+}, 'IDBCursor asyncness - advance');
+
+indexeddb_test(upgrade_func, function(t, db) {
+  let count = 0;
+  let rq = db.transaction('test', 'readonly')
+               .objectStore('test')
+               .index('index')
+               .openCursor();
+
+  rq.onsuccess = t.step_func(function(e) {
+    if (!e.target.result) {
+      assert_equals(count, 2, 'count');
+      t.done();
+      return;
+    }
+    let cursor = e.target.result;
+
+    switch (count) {
+      case 0:
+        assert_equals(cursor.value, 'data');
+        assert_equals(cursor.key, 'data');
+        assert_equals(cursor.primaryKey, 1);
+        cursor.continue('data2');
+        assert_equals(cursor.value, 'data');
+        assert_equals(cursor.key, 'data');
+        assert_equals(cursor.primaryKey, 1);
+        break;
+
+      case 1:
+        assert_equals(cursor.value, 'data2');
+        assert_equals(cursor.key, 'data2');
+        assert_equals(cursor.primaryKey, 2);
+        cursor.continue();
+        assert_equals(cursor.value, 'data2');
+        assert_equals(cursor.key, 'data2');
+        assert_equals(cursor.primaryKey, 2);
+        break;
+
+      default:
+        assert_unreached('Unexpected count: ' + count);
+    }
+
+    count++;
+  });
+  rq.onerror = t.unreached_func('unexpected error');
+}, 'IDBCursor asyncness - continue');
+
+indexeddb_test(upgrade_func, function(t, db) {
+  let count = 0;
+  let rq = db.transaction('test', 'readonly')
+               .objectStore('test')
+               .index('index')
+               .openCursor();
+
+  rq.onsuccess = t.step_func(function(e) {
+    if (!e.target.result) {
+      assert_equals(count, 2, 'count');
+      t.done();
+      return;
+    }
+    let cursor = e.target.result;
+    cursor.advance(1);
+
+    switch (count) {
+      case 0:
+        assert_equals(cursor.value, 'data');
+        assert_equals(cursor.key, 'data');
+        assert_equals(cursor.primaryKey, 1);
+        break;
+
+      case 1:
+        assert_equals(cursor.value, 'data2');
+        assert_equals(cursor.key, 'data2');
+        assert_equals(cursor.primaryKey, 2);
+        break;
+
+      default:
+        assert_unreached('Unexpected count: ' + count);
+    }
+
+    count++;
+  });
+  rq.onerror = t.unreached_func('unexpected error');
+}, 'IDBCursor asyncness - fresh advance still async');
+
+indexeddb_test(upgrade_func, function(t, db) {
+  let count = 0;
+  let rq = db.transaction('test', 'readonly').objectStore('test').openCursor();
+
+  rq.onsuccess = t.step_func(function(e) {
+    if (!e.target.result) {
+      assert_equals(count, 2, 'count');
+      t.done();
+      return;
+    }
+    let cursor = e.target.result;
+    cursor.continue();
+
+    switch (count) {
+      case 0:
+        assert_equals(cursor.value, 'data');
+        assert_equals(cursor.key, 1);
+        break;
+
+      case 1:
+        assert_equals(cursor.value, 'data2');
+        assert_equals(cursor.key, 2);
+        break;
+
+      default:
+        assert_unreached('Unexpected count: ' + count);
+    }
+
+    count++;
+  });
+  rq.onerror = t.unreached_func('unexpected error');
+}, 'IDBCursor asyncness - fresh continue still async');
diff --git a/tests/wpt/tests/IndexedDB/idbcursor-advance-continue-async.htm b/tests/wpt/tests/IndexedDB/idbcursor-advance-continue-async.htm
deleted file mode 100644
index 2490e9e7e0d..00000000000
--- a/tests/wpt/tests/IndexedDB/idbcursor-advance-continue-async.htm
+++ /dev/null
@@ -1,181 +0,0 @@
-<!DOCTYPE html>
-<title>IDBCursor asyncness</title>
-<link rel="author" href="mailto:odinho@opera.com" title="Odin Hørthe Omdal">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="resources/support.js"></script>
-
-<script>
-
-function upgrade_func(t, db, tx) {
-  var objStore = db.createObjectStore("test");
-  objStore.createIndex("index", "");
-
-  objStore.add("data",  1);
-  objStore.add("data2", 2);
-}
-
-indexeddb_test(
-  upgrade_func,
-  function(t, db) {
-    var count = 0;
-    var rq = db.transaction("test", "readonly").objectStore("test").openCursor();
-
-    rq.onsuccess = t.step_func(function(e) {
-      if (!e.target.result) {
-        assert_equals(count, 2, 'count');
-        t.done();
-        return;
-      }
-      var cursor = e.target.result;
-
-      switch(count) {
-        case 0:
-          assert_equals(cursor.value, "data")
-          assert_equals(cursor.key, 1)
-          cursor.advance(1)
-          assert_equals(cursor.value, "data")
-          assert_equals(cursor.key, 1)
-          break
-
-        case 1:
-          assert_equals(cursor.value, "data2")
-          assert_equals(cursor.key, 2)
-          cursor.advance(1)
-          assert_equals(cursor.value, "data2")
-          assert_equals(cursor.key, 2)
-          break
-
-        default:
-          assert_unreached("Unexpected count: " + count)
-      }
-
-      count++;
-    });
-    rq.onerror = t.unreached_func("unexpected error")
-  },
-  document.title + " - advance"
-);
-
-indexeddb_test(
-  upgrade_func,
-  function(t, db) {
-    var count = 0;
-    var rq = db.transaction("test", "readonly").objectStore("test").index("index").openCursor();
-
-    rq.onsuccess = t.step_func(function(e) {
-      if (!e.target.result) {
-        assert_equals(count, 2, 'count');
-        t.done();
-        return;
-      }
-      var cursor = e.target.result;
-
-      switch(count) {
-        case 0:
-          assert_equals(cursor.value, "data")
-          assert_equals(cursor.key,   "data")
-          assert_equals(cursor.primaryKey, 1)
-          cursor.continue("data2")
-          assert_equals(cursor.value, "data")
-          assert_equals(cursor.key,   "data")
-          assert_equals(cursor.primaryKey, 1)
-          break
-
-        case 1:
-          assert_equals(cursor.value, "data2")
-          assert_equals(cursor.key,   "data2")
-          assert_equals(cursor.primaryKey, 2)
-          cursor.continue()
-          assert_equals(cursor.value, "data2")
-          assert_equals(cursor.key,   "data2")
-          assert_equals(cursor.primaryKey, 2)
-          break
-
-        default:
-          assert_unreached("Unexpected count: " + count)
-      }
-
-      count++;
-    });
-    rq.onerror = t.unreached_func("unexpected error")
-  },
-  document.title + " - continue"
-);
-
-indexeddb_test(
-  upgrade_func,
-  function(t, db) {
-    var count = 0;
-    var rq = db.transaction("test", "readonly").objectStore("test").index("index").openCursor();
-
-    rq.onsuccess = t.step_func(function(e) {
-      if (!e.target.result) {
-        assert_equals(count, 2, 'count');
-        t.done();
-        return;
-      }
-      var cursor = e.target.result;
-      cursor.advance(1)
-
-      switch(count) {
-        case 0:
-          assert_equals(cursor.value, "data")
-          assert_equals(cursor.key,   "data")
-          assert_equals(cursor.primaryKey, 1)
-          break
-
-        case 1:
-          assert_equals(cursor.value, "data2")
-          assert_equals(cursor.key,   "data2")
-          assert_equals(cursor.primaryKey, 2)
-          break
-
-        default:
-          assert_unreached("Unexpected count: " + count)
-      }
-
-      count++;
-    });
-    rq.onerror = t.unreached_func("unexpected error")
-  },
-  document.title + " - fresh advance still async"
-);
-
-indexeddb_test(
-  upgrade_func,
-  function(t, db) {
-    var count = 0;
-    var rq = db.transaction("test", "readonly").objectStore("test").openCursor();
-
-    rq.onsuccess = t.step_func(function(e) {
-      if (!e.target.result) {
-        assert_equals(count, 2, 'count');
-        t.done();
-        return;
-      }
-      var cursor = e.target.result;
-      cursor.continue()
-
-      switch(count) {
-        case 0:
-          assert_equals(cursor.value, "data")
-          assert_equals(cursor.key, 1)
-          break
-
-        case 1:
-          assert_equals(cursor.value, "data2")
-          assert_equals(cursor.key, 2)
-          break
-
-        default:
-          assert_unreached("Unexpected count: " + count)
-      }
-
-      count++;
-    });
-    rq.onerror = t.unreached_func("unexpected error")
-  },
-  document.title + " - fresh continue still async"
-);
-</script>
diff --git a/tests/wpt/tests/IndexedDB/idbcursor-advance-exception-order.any.js b/tests/wpt/tests/IndexedDB/idbcursor-advance-exception-order.any.js
new file mode 100644
index 00000000000..bd87686af88
--- /dev/null
+++ b/tests/wpt/tests/IndexedDB/idbcursor-advance-exception-order.any.js
@@ -0,0 +1,103 @@
+// META: global=window,worker
+// META: title=IndexedDB: IDBCursor advance() Exception Ordering
+// META: script=resources/support.js
+
+// Spec: https://w3c.github.io/IndexedDB/#dom-idbcursor-advance
+
+'use strict';
+
+indexeddb_test(
+    (t, db) => {
+      const store = db.createObjectStore('s');
+      store.put('value', 'key');
+    },
+    (t, db) => {
+      const tx = db.transaction('s', 'readonly');
+      const store = tx.objectStore('s');
+
+      const r = store.openKeyCursor();
+      r.onsuccess = t.step_func(() => {
+        r.onsuccess = null;
+
+        const cursor = r.result;
+
+        setTimeout(
+            t.step_func(() => {
+              assert_throws_js(
+                  TypeError,
+                  () => {
+                    cursor.advance(0);
+                  },
+                  '"zero" check (TypeError) should precede ' +
+                      '"not active" check (TransactionInactiveError)');
+              t.done();
+            }),
+            0);
+      });
+    },
+    'IDBCursor.advance exception order: TypeError vs. TransactionInactiveError');
+
+indexeddb_test(
+    (t, db) => {
+      const store = db.createObjectStore('s');
+
+      const s = db.createObjectStore('s2');
+      s.put('value', 'key');
+
+      const r = s.openKeyCursor();
+      r.onsuccess = t.step_func(() => {
+        r.onsuccess = null;
+
+        const cursor = r.result;
+        db.deleteObjectStore('s2');
+
+        setTimeout(
+            t.step_func(() => {
+              assert_throws_dom(
+                  'TransactionInactiveError',
+                  () => {
+                    cursor.advance(1);
+                  },
+                  '"not active" check (TransactionInactiveError) ' +
+                      'should precede "deleted" check (InvalidStateError)');
+              t.done();
+            }),
+            0);
+      });
+    },
+    (t, db) => {},
+    'IDBCursor.advance exception order: ' +
+        'TransactionInactiveError vs. InvalidStateError #1');
+
+indexeddb_test(
+    (t, db) => {
+      const store = db.createObjectStore('s');
+      store.put('value', 'key');
+    },
+    (t, db) => {
+      const tx = db.transaction('s', 'readonly');
+      const store = tx.objectStore('s');
+
+      const r = store.openKeyCursor();
+      r.onsuccess = t.step_func(() => {
+        r.onsuccess = null;
+
+        const cursor = r.result;
+        cursor.advance(1);
+
+        setTimeout(
+            t.step_func(() => {
+              assert_throws_dom(
+                  'TransactionInactiveError',
+                  () => {
+                    cursor.advance(1);
+                  },
+                  '"not active" check (TransactionInactiveError) ' +
+                      'should precede "got value" check (InvalidStateError)');
+              t.done();
+            }),
+            0);
+      });
+    },
+    'IDBCursor.advance exception order: ' +
+        'TransactionInactiveError vs. InvalidStateError #2');
diff --git a/tests/wpt/tests/IndexedDB/idbcursor-advance-exception-order.html b/tests/wpt/tests/IndexedDB/idbcursor-advance-exception-order.html
deleted file mode 100644
index 1abbc9acc2a..00000000000
--- a/tests/wpt/tests/IndexedDB/idbcursor-advance-exception-order.html
+++ /dev/null
@@ -1,91 +0,0 @@
-<!doctype html>
-<meta charset=utf-8>
-<title>IndexedDB: IDBCursor advance() Exception Ordering</title>
-<link rel="help" href="https://w3c.github.io/IndexedDB/#dom-idbcursor-advance">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="resources/support.js"></script>
-<script>
-
-indexeddb_test(
-  (t, db) => {
-    const store = db.createObjectStore('s');
-    store.put('value', 'key');
-  },
-  (t, db) => {
-    const tx = db.transaction('s', 'readonly');
-    const store = tx.objectStore('s');
-
-    const r = store.openKeyCursor();
-    r.onsuccess = t.step_func(() => {
-      r.onsuccess = null;
-
-      const cursor = r.result;
-
-      setTimeout(t.step_func(() => {
-        assert_throws_js(TypeError, () => { cursor.advance(0); },
-                         '"zero" check (TypeError) should precede ' +
-                         '"not active" check (TransactionInactiveError)');
-        t.done();
-      }), 0);
-    });
-  },
-  'IDBCursor.advance exception order: TypeError vs. TransactionInactiveError'
-);
-
-indexeddb_test(
-  (t, db) => {
-    const store = db.createObjectStore('s');
-
-    const s = db.createObjectStore('s2');
-    s.put('value', 'key');
-
-    const r = s.openKeyCursor();
-    r.onsuccess = t.step_func(() => {
-      r.onsuccess = null;
-
-      const cursor = r.result;
-      db.deleteObjectStore('s2');
-
-      setTimeout(t.step_func(() => {
-        assert_throws_dom('TransactionInactiveError', () => { cursor.advance(1); },
-                          '"not active" check (TransactionInactiveError) ' +
-                          'should precede "deleted" check (InvalidStateError)');
-        t.done();
-      }), 0);
-    });
-  },
-  (t, db) => {},
-  'IDBCursor.advance exception order: ' +
-  'TransactionInactiveError vs. InvalidStateError #1'
-);
-
-indexeddb_test(
-  (t, db) => {
-    const store = db.createObjectStore('s');
-    store.put('value', 'key');
-  },
-  (t, db) => {
-    const tx = db.transaction('s', 'readonly');
-    const store = tx.objectStore('s');
-
-    const r = store.openKeyCursor();
-    r.onsuccess = t.step_func(() => {
-      r.onsuccess = null;
-
-      const cursor = r.result;
-      cursor.advance(1);
-
-      setTimeout(t.step_func(() => {
-        assert_throws_dom('TransactionInactiveError', () => { cursor.advance(1); },
-                          '"not active" check (TransactionInactiveError) ' +
-                          'should precede "got value" check (InvalidStateError)');
-        t.done();
-      }), 0);
-    });
-  },
-  'IDBCursor.advance exception order: ' +
-  'TransactionInactiveError vs. InvalidStateError #2'
-);
-
-</script>
diff --git a/tests/wpt/tests/IndexedDB/idbcursor-advance-invalid.any.js b/tests/wpt/tests/IndexedDB/idbcursor-advance-invalid.any.js
new file mode 100644
index 00000000000..3d6ff1638fc
--- /dev/null
+++ b/tests/wpt/tests/IndexedDB/idbcursor-advance-invalid.any.js
@@ -0,0 +1,196 @@
+// META: global=window,worker
+// META: title=IDBCursor.advance() - invalid
+// META: script=resources/support.js
+
+// Spec:
+// https://w3c.github.io/IndexedDB/#widl-IDBCursor-advance-void-unsigned-long-count
+
+'use strict';
+
+function upgrade_func(t, db, tx) {
+  let objStore = db.createObjectStore('test');
+  objStore.createIndex('index', '');
+
+  objStore.add('data', 1);
+  objStore.add('data2', 2);
+}
+
+indexeddb_test(upgrade_func, function(t, db) {
+  let count = 0;
+  let rq = db.transaction('test', 'readonly')
+               .objectStore('test')
+               .index('index')
+               .openCursor();
+
+  rq.onsuccess = t.step_func(function(e) {
+    if (!e.target.result) {
+      assert_equals(count, 2, 'count');
+      t.done();
+      return;
+    }
+    let cursor = e.target.result;
+
+    cursor.advance(1);
+
+    // Second try
+    assert_throws_dom('InvalidStateError', function() {
+      cursor.advance(1);
+    }, 'second advance');
+
+    assert_throws_dom('InvalidStateError', function() {
+      cursor.advance(3);
+    }, 'third advance');
+
+    count++;
+  });
+  rq.onerror = t.unreached_func('unexpected error');
+}, 'IDBCursor.advance() - invalid - attempt to call advance twice');
+
+indexeddb_test(upgrade_func, function(t, db) {
+  let rq = db.transaction('test', 'readonly')
+               .objectStore('test')
+               .index('index')
+               .openCursor();
+
+  rq.onsuccess = t.step_func(function(e) {
+    let cursor = e.target.result;
+
+    assert_throws_js(TypeError, function() {
+      cursor.advance(self);
+    });
+
+    assert_throws_js(TypeError, function() {
+      cursor.advance({});
+    });
+
+    assert_throws_js(TypeError, function() {
+      cursor.advance([]);
+    });
+
+    assert_throws_js(TypeError, function() {
+      cursor.advance('');
+    });
+
+    assert_throws_js(TypeError, function() {
+      cursor.advance('1 2');
+    });
+
+    t.done();
+  });
+  rq.onerror = t.unreached_func('unexpected error');
+}, 'IDBCursor.advance() - invalid - pass something other than number');
+
+
+indexeddb_test(upgrade_func, function(t, db) {
+  let rq = db.transaction('test', 'readonly')
+               .objectStore('test')
+               .index('index')
+               .openCursor();
+
+  rq.onsuccess = t.step_func(function(e) {
+    let cursor = e.target.result;
+
+    assert_throws_js(TypeError, function() {
+      cursor.advance(null);
+    });
+
+    assert_throws_js(TypeError, function() {
+      cursor.advance(undefined);
+    });
+
+    let mylet = null;
+    assert_throws_js(TypeError, function() {
+      cursor.advance(mylet);
+    });
+
+    t.done();
+  });
+  rq.onerror = t.unreached_func('unexpected error');
+}, 'IDBCursor.advance() - invalid - pass null/undefined');
+
+
+indexeddb_test(upgrade_func, function(t, db) {
+  let rq = db.transaction('test', 'readonly')
+               .objectStore('test')
+               .index('index')
+               .openCursor();
+
+  rq.onsuccess = t.step_func(function(e) {
+    let cursor = e.target.result;
+
+    assert_throws_js(TypeError, function() {
+      cursor.advance();
+    });
+
+    t.done();
+  });
+  rq.onerror = t.unreached_func('unexpected error');
+}, 'IDBCursor.advance() - invalid - missing argument');
+
+indexeddb_test(upgrade_func, function(t, db) {
+  let rq = db.transaction('test', 'readonly')
+               .objectStore('test')
+               .index('index')
+               .openCursor();
+
+  rq.onsuccess = t.step_func(function(e) {
+    let cursor = e.target.result;
+
+    assert_throws_js(TypeError, function() {
+      cursor.advance(-1);
+    });
+
+    assert_throws_js(TypeError, function() {
+      cursor.advance(NaN);
+    });
+
+    assert_throws_js(TypeError, function() {
+      cursor.advance(0);
+    });
+
+    assert_throws_js(TypeError, function() {
+      cursor.advance(-0);
+    });
+
+    assert_throws_js(TypeError, function() {
+      cursor.advance(Infinity);
+    });
+
+    assert_throws_js(TypeError, function() {
+      cursor.advance(-Infinity);
+    });
+
+    let mylet = -999999;
+    assert_throws_js(TypeError, function() {
+      cursor.advance(mylet);
+    });
+
+    t.done();
+  });
+  rq.onerror = t.unreached_func('unexpected error');
+}, 'IDBCursor.advance() - invalid - pass negative numbers');
+
+indexeddb_test(upgrade_func, function(t, db) {
+  let count = 0;
+  let rq = db.transaction('test', 'readonly')
+               .objectStore('test')
+               .index('index')
+               .openCursor();
+
+  rq.onsuccess = t.step_func(function(e) {
+    let cursor = e.target.result;
+    if (!cursor) {
+      assert_equals(count, 2, 'count runs');
+      t.done();
+      return;
+    }
+
+    assert_throws_js(TypeError, function() {
+      cursor.advance(0);
+    });
+
+    cursor.advance(1);
+    count++;
+  });
+  rq.onerror = t.unreached_func('unexpected error');
+}, 'IDBCursor.advance() - invalid - got value not set on exception');
diff --git a/tests/wpt/tests/IndexedDB/idbcursor-advance-invalid.htm b/tests/wpt/tests/IndexedDB/idbcursor-advance-invalid.htm
deleted file mode 100644
index 4e8472efd59..00000000000
--- a/tests/wpt/tests/IndexedDB/idbcursor-advance-invalid.htm
+++ /dev/null
@@ -1,192 +0,0 @@
-<!DOCTYPE html>
-<title>IDBCursor.advance() - invalid</title>
-<link rel="author" href="mailto:odinho@opera.com" title="Odin Hørthe Omdal">
-<link rel=help href="http://dvcs.w3.org/hg/IndexedDB/raw-file/tip/Overview.html#widl-IDBCursor-advance-void-unsigned-long-count">
-<link rel=assert title="If the value for count is 0 (zero) or a negative number, this method must throw a JavaScript TypeError exception.">
-<link rel=assert title="TypeError The value passed into the count parameter was zero or a negative number.">
-<link rel=assert title="InvalidStateError The cursor is currently being iterated, or has iterated past its end.">
-<link rel=assert title="Calling this method more than once before new cursor data has been loaded is not allowed and results in a DOMException of type InvalidStateError being thrown. For example, calling advance() twice from the same onsuccess handler results in a DOMException of type InvalidStateError being thrown on the second call.">
-<link rel=assert title="Before this method returns, unless an exception was thrown, it sets the got value flag on the cursor to false.">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="resources/support.js"></script>
-
-<script>
-
-function upgrade_func(t, db, tx) {
-  var objStore = db.createObjectStore("test");
-  objStore.createIndex("index", "");
-
-  objStore.add("data",  1);
-  objStore.add("data2", 2);
-}
-
-indexeddb_test(
-  upgrade_func,
-  function(t, db) {
-    var count = 0;
-    var rq = db.transaction("test", "readonly").objectStore("test").index("index").openCursor();
-
-    rq.onsuccess = t.step_func(function(e) {
-      if (!e.target.result) {
-        assert_equals(count, 2, 'count');
-        t.done();
-        return;
-      }
-      var cursor = e.target.result;
-
-      cursor.advance(1);
-
-      // Second try
-      assert_throws_dom('InvalidStateError',
-                        function() { cursor.advance(1); }, 'second advance');
-
-      assert_throws_dom('InvalidStateError',
-                        function() { cursor.advance(3); }, 'third advance');
-
-      count++;
-    });
-    rq.onerror = t.unreached_func("unexpected error")
-  },
-  document.title + " - attempt to call advance twice"
-);
-
-indexeddb_test(
-  upgrade_func,
-  function(t, db) {
-    var rq = db.transaction("test", "readonly").objectStore("test").index("index").openCursor();
-
-    rq.onsuccess = t.step_func(function(e) {
-      var cursor = e.target.result;
-
-      assert_throws_js(TypeError,
-                       function() { cursor.advance(document); });
-
-      assert_throws_js(TypeError,
-                       function() { cursor.advance({}); });
-
-      assert_throws_js(TypeError,
-                       function() { cursor.advance([]); });
-
-      assert_throws_js(TypeError,
-                       function() { cursor.advance(""); });
-
-      assert_throws_js(TypeError,
-                       function() { cursor.advance("1 2"); });
-
-      t.done();
-    });
-    rq.onerror = t.unreached_func("unexpected error")
-  },
-  document.title + " - pass something other than number"
-);
-
-
-indexeddb_test(
-  upgrade_func,
-  function(t, db) {
-    var rq = db.transaction("test", "readonly").objectStore("test").index("index").openCursor();
-
-    rq.onsuccess = t.step_func(function(e) {
-      var cursor = e.target.result;
-
-      assert_throws_js(TypeError,
-                       function() { cursor.advance(null); });
-
-      assert_throws_js(TypeError,
-                       function() { cursor.advance(undefined); });
-
-      var myvar = null;
-      assert_throws_js(TypeError,
-                       function() { cursor.advance(myvar); });
-
-      t.done();
-    });
-    rq.onerror = t.unreached_func("unexpected error")
-  },
-  document.title + " - pass null/undefined"
-);
-
-
-indexeddb_test(
-  upgrade_func,
-  function(t, db) {
-    var rq = db.transaction("test", "readonly").objectStore("test").index("index").openCursor();
-
-    rq.onsuccess = t.step_func(function(e) {
-      var cursor = e.target.result;
-
-      assert_throws_js(TypeError,
-                       function() { cursor.advance(); });
-
-      t.done();
-    });
-    rq.onerror = t.unreached_func("unexpected error")
-  },
-  document.title + " - missing argument"
-);
-
-indexeddb_test(
-  upgrade_func,
-  function(t, db) {
-    var rq = db.transaction("test", "readonly").objectStore("test").index("index").openCursor();
-
-    rq.onsuccess = t.step_func(function(e) {
-      var cursor = e.target.result;
-
-      assert_throws_js(TypeError,
-                       function() { cursor.advance(-1); });
-
-      assert_throws_js(TypeError,
-                       function() { cursor.advance(NaN); });
-
-      assert_throws_js(TypeError,
-                       function() { cursor.advance(0); });
-
-      assert_throws_js(TypeError,
-                       function() { cursor.advance(-0); });
-
-      assert_throws_js(TypeError,
-                       function() { cursor.advance(Infinity); });
-
-      assert_throws_js(TypeError,
-                       function() { cursor.advance(-Infinity); });
-
-      var myvar = -999999;
-      assert_throws_js(TypeError,
-                       function() { cursor.advance(myvar); });
-
-      t.done();
-    });
-    rq.onerror = t.unreached_func("unexpected error")
-  },
-  document.title + " - pass negative numbers"
-);
-
-indexeddb_test(
-  upgrade_func,
-  function(t, db) {
-    var count = 0;
-    var rq = db.transaction("test", "readonly").objectStore("test").index("index").openCursor();
-
-    rq.onsuccess = t.step_func(function(e) {
-      var cursor = e.target.result;
-      if (!cursor)
-        {
-          assert_equals(count, 2, "count runs");
-          t.done();
-          return;
-        }
-
-      assert_throws_js(TypeError,
-                       function() { cursor.advance(0); });
-
-      cursor.advance(1);
-      count++;
-    });
-    rq.onerror = t.unreached_func("unexpected error")
-  },
-  document.title + " - got value not set on exception"
-);
-
-</script>
diff --git a/tests/wpt/tests/IndexedDB/idbcursor-advance.any.js b/tests/wpt/tests/IndexedDB/idbcursor-advance.any.js
new file mode 100644
index 00000000000..576d0ec6671
--- /dev/null
+++ b/tests/wpt/tests/IndexedDB/idbcursor-advance.any.js
@@ -0,0 +1,232 @@
+// META: global=window,worker
+// META: title=IDBCursor.advance()
+// META: script=resources/support.js
+
+'use strict';
+
+function upgrade_func(t, db, tx) {
+  let objStore = db.createObjectStore('test');
+  objStore.createIndex('index', '');
+
+  objStore.add('cupcake', 5);
+  objStore.add('pancake', 3);
+  objStore.add('pie', 1);
+  objStore.add('pie', 4);
+  objStore.add('taco', 2);
+}
+
+indexeddb_test(upgrade_func, function(t, db) {
+  let count = 0;
+  let rq = db.transaction('test', 'readonly')
+               .objectStore('test')
+               .index('index')
+               .openCursor();
+
+  rq.onsuccess = t.step_func(function(e) {
+    if (!e.target.result) {
+      assert_equals(count, 3, 'count');
+      t.done();
+      return;
+    }
+    let cursor = e.target.result;
+
+    switch (count) {
+      case 0:
+        assert_equals(cursor.value, 'cupcake');
+        assert_equals(cursor.primaryKey, 5);
+        break;
+
+      case 1:
+        assert_equals(cursor.value, 'pie');
+        assert_equals(cursor.primaryKey, 1);
+        break;
+
+      case 2:
+        assert_equals(cursor.value, 'taco');
+        assert_equals(cursor.primaryKey, 2);
+        break;
+
+      default:
+        assert_unreached('Unexpected count: ' + count);
+    }
+
+    count++;
+    cursor.advance(2);
+  });
+  rq.onerror = t.unreached_func('unexpected error');
+}, 'IDBCursor.advance() - advances');
+
+indexeddb_test(upgrade_func, function(t, db) {
+  let count = 0;
+  let rq = db.transaction('test', 'readonly')
+               .objectStore('test')
+               .index('index')
+               .openCursor(null, 'prev');
+
+  rq.onsuccess = t.step_func(function(e) {
+    if (!e.target.result) {
+      assert_equals(count, 3, 'count');
+      t.done();
+      return;
+    }
+    let cursor = e.target.result;
+
+    switch (count) {
+      case 0:
+        assert_equals(cursor.value, 'taco');
+        assert_equals(cursor.primaryKey, 2);
+        break;
+
+      case 1:
+        assert_equals(cursor.value, 'pie');
+        assert_equals(cursor.primaryKey, 1);
+        break;
+
+      case 2:
+        assert_equals(cursor.value, 'cupcake');
+        assert_equals(cursor.primaryKey, 5);
+        break;
+
+      default:
+        assert_unreached('Unexpected count: ' + count);
+    }
+
+    count++;
+    cursor.advance(2);
+  });
+  rq.onerror = t.unreached_func('unexpected error');
+}, 'IDBCursor.advance() - advances backwards');
+
+indexeddb_test(upgrade_func, function(t, db) {
+  let count = 0;
+  let rq = db.transaction('test', 'readonly')
+               .objectStore('test')
+               .index('index')
+               .openCursor();
+
+  rq.onsuccess = t.step_func(function(e) {
+    if (!e.target.result) {
+      assert_equals(count, 1, 'count');
+      t.done();
+      return;
+    }
+    let cursor = e.target.result;
+
+    switch (count) {
+      case 0:
+        assert_equals(cursor.value, 'cupcake');
+        assert_equals(cursor.primaryKey, 5);
+        break;
+
+      default:
+        assert_unreached('Unexpected count: ' + count);
+    }
+
+    count++;
+    cursor.advance(100000);
+  });
+  rq.onerror = t.unreached_func('unexpected error');
+}, 'IDBCursor.advance() - skip far forward');
+
+indexeddb_test(upgrade_func, function(t, db) {
+  let count = 0;
+  let rq = db.transaction('test', 'readonly')
+               .objectStore('test')
+               .index('index')
+               .openCursor(IDBKeyRange.lowerBound('cupcake', true));
+
+  rq.onsuccess = t.step_func(function(e) {
+    if (!e.target.result) {
+      assert_equals(count, 2, 'count');
+      t.done();
+      return;
+    }
+    let cursor = e.target.result;
+
+    switch (count) {
+      case 0:
+        assert_equals(cursor.value, 'pancake');
+        assert_equals(cursor.primaryKey, 3);
+        break;
+
+      case 1:
+        assert_equals(cursor.value, 'pie');
+        assert_equals(cursor.primaryKey, 4);
+        break;
+
+      default:
+        assert_unreached('Unexpected count: ' + count);
+    }
+
+    count++;
+    cursor.advance(2);
+  });
+  rq.onerror = t.unreached_func('unexpected error');
+}, 'IDBCursor.advance() - within range');
+
+indexeddb_test(upgrade_func, function(t, db) {
+  let count = 0;
+  let rq = db.transaction('test', 'readonly')
+               .objectStore('test')
+               .index('index')
+               .openCursor('pancake');
+
+  rq.onsuccess = t.step_func(function(e) {
+    if (!e.target.result) {
+      assert_equals(count, 1, 'count');
+      t.done();
+      return;
+    }
+    let cursor = e.target.result;
+
+    switch (count) {
+      case 0:
+        assert_equals(cursor.value, 'pancake');
+        assert_equals(cursor.primaryKey, 3);
+        break;
+
+      default:
+        assert_unreached('Unexpected count: ' + count);
+    }
+
+    count++;
+    cursor.advance(1);
+  });
+  rq.onerror = t.unreached_func('unexpected error');
+}, 'IDBCursor.advance() - within single key range');
+
+indexeddb_test(upgrade_func, function(t, db) {
+  let count = 0;
+  let rq = db.transaction('test', 'readonly')
+               .objectStore('test')
+               .index('index')
+               .openCursor('pie');
+
+  rq.onsuccess = t.step_func(function(e) {
+    if (!e.target.result) {
+      assert_equals(count, 2, 'count');
+      t.done();
+      return;
+    }
+    let cursor = e.target.result;
+
+    switch (count) {
+      case 0:
+        assert_equals(cursor.value, 'pie');
+        assert_equals(cursor.primaryKey, 1);
+        break;
+
+      case 1:
+        assert_equals(cursor.value, 'pie');
+        assert_equals(cursor.primaryKey, 4);
+        break;
+
+      default:
+        assert_unreached('Unexpected count: ' + count);
+    }
+
+    count++;
+    cursor.advance(1);
+  });
+  rq.onerror = t.unreached_func('unexpected error');
+}, 'IDBCursor.advance() - within single key range, with several results');
diff --git a/tests/wpt/tests/IndexedDB/idbcursor-advance.htm b/tests/wpt/tests/IndexedDB/idbcursor-advance.htm
deleted file mode 100644
index c72ac2f16f4..00000000000
--- a/tests/wpt/tests/IndexedDB/idbcursor-advance.htm
+++ /dev/null
@@ -1,247 +0,0 @@
-<!DOCTYPE html>
-<title>IDBCursor.advance()</title>
-<link rel="author" href="mailto:odinho@opera.com" title="Odin Hørthe Omdal">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="resources/support.js"></script>
-
-<script>
-
-function upgrade_func(t, db, tx) {
-  var objStore = db.createObjectStore("test");
-  objStore.createIndex("index", "");
-
-  objStore.add("cupcake", 5);
-  objStore.add("pancake", 3); // Yes, it is intended
-  objStore.add("pie",     1);
-  objStore.add("pie",     4);
-  objStore.add("taco",    2);
-}
-
-indexeddb_test(
-  upgrade_func,
-  function(t, db) {
-    var count = 0;
-    var rq = db.transaction("test", "readonly").objectStore("test").index("index").openCursor();
-
-    rq.onsuccess = t.step_func(function(e) {
-      if (!e.target.result) {
-        assert_equals(count, 3, "count");
-        t.done();
-        return;
-      }
-      var cursor = e.target.result;
-
-      switch(count) {
-        case 0:
-          assert_equals(cursor.value, "cupcake");
-          assert_equals(cursor.primaryKey, 5);
-          break;
-
-        case 1:
-          assert_equals(cursor.value, "pie");
-          assert_equals(cursor.primaryKey, 1);
-          break;
-
-        case 2:
-          assert_equals(cursor.value, "taco");
-          assert_equals(cursor.primaryKey, 2);
-          break;
-
-        default:
-          assert_unreached("Unexpected count: " + count);
-      }
-
-      count++;
-      cursor.advance(2);
-    });
-    rq.onerror = t.unreached_func("unexpected error")
-  },
-  document.title + " - advances"
-);
-
-indexeddb_test(
-  upgrade_func,
-  function(t, db) {
-    var count = 0;
-    var rq = db.transaction("test", "readonly").objectStore("test").index("index").openCursor(null, "prev");
-
-    rq.onsuccess = t.step_func(function(e) {
-      if (!e.target.result) {
-        assert_equals(count, 3, "count");
-        t.done();
-        return;
-      }
-      var cursor = e.target.result;
-
-      switch(count) {
-        case 0:
-          assert_equals(cursor.value, "taco");
-          assert_equals(cursor.primaryKey, 2);
-          break;
-
-        case 1:
-          assert_equals(cursor.value, "pie");
-          assert_equals(cursor.primaryKey, 1);
-          break;
-
-        case 2:
-          assert_equals(cursor.value, "cupcake");
-          assert_equals(cursor.primaryKey, 5);
-          break;
-
-        default:
-          assert_unreached("Unexpected count: " + count);
-      }
-
-      count++;
-      cursor.advance(2);
-    });
-    rq.onerror = t.unreached_func("unexpected error")
-  },
-  document.title + " - advances backwards"
-);
-
-indexeddb_test(
-  upgrade_func,
-  function(t, db) {
-    var count = 0;
-    var rq = db.transaction("test", "readonly").objectStore("test").index("index")
-               .openCursor();
-
-    rq.onsuccess = t.step_func(function(e) {
-      if (!e.target.result) {
-        assert_equals(count, 1, "count");
-        t.done();
-        return;
-      }
-      var cursor = e.target.result;
-
-      switch(count) {
-        case 0:
-          assert_equals(cursor.value, "cupcake");
-          assert_equals(cursor.primaryKey, 5);
-          break;
-
-        default:
-          assert_unreached("Unexpected count: " + count);
-      }
-
-      count++;
-      cursor.advance(100000);
-    });
-    rq.onerror = t.unreached_func("unexpected error")
-  },
-  document.title + " - skip far forward"
-);
-
-indexeddb_test(
-  upgrade_func,
-  function(t, db) {
-    var count = 0;
-    var rq = db.transaction("test", "readonly").objectStore("test").index("index")
-               .openCursor(IDBKeyRange.lowerBound("cupcake", true));
-
-    rq.onsuccess = t.step_func(function(e) {
-      if (!e.target.result) {
-        assert_equals(count, 2, "count");
-        t.done();
-        return;
-      }
-      var cursor = e.target.result;
-
-      switch(count) {
-        case 0:
-          assert_equals(cursor.value, "pancake");
-          assert_equals(cursor.primaryKey, 3);
-          break;
-
-        case 1:
-          assert_equals(cursor.value, "pie");
-          assert_equals(cursor.primaryKey, 4);
-          break;
-
-        default:
-          assert_unreached("Unexpected count: " + count);
-      }
-
-      count++;
-      cursor.advance(2);
-    });
-    rq.onerror = t.unreached_func("unexpected error")
-  },
-  document.title + " - within range"
-);
-
-indexeddb_test(
-  upgrade_func,
-  function(t, db) {
-    var count = 0;
-    var rq = db.transaction("test", "readonly").objectStore("test").index("index")
-               .openCursor("pancake");
-
-    rq.onsuccess = t.step_func(function(e) {
-      if (!e.target.result) {
-        assert_equals(count, 1, "count");
-        t.done();
-        return;
-      }
-      var cursor = e.target.result;
-
-      switch(count) {
-        case 0:
-          assert_equals(cursor.value, "pancake");
-          assert_equals(cursor.primaryKey, 3);
-          break;
-
-        default:
-          assert_unreached("Unexpected count: " + count);
-      }
-
-      count++;
-      cursor.advance(1);
-    });
-    rq.onerror = t.unreached_func("unexpected error")
-  },
-  document.title + " - within single key range"
-);
-
-indexeddb_test(
-  upgrade_func,
-  function(t, db) {
-    var count = 0;
-    var rq = db.transaction("test", "readonly").objectStore("test").index("index")
-               .openCursor("pie");
-
-    rq.onsuccess = t.step_func(function(e) {
-      if (!e.target.result) {
-        assert_equals(count, 2, "count");
-        t.done();
-        return;
-      }
-      var cursor = e.target.result;
-
-      switch(count) {
-        case 0:
-          assert_equals(cursor.value, "pie");
-          assert_equals(cursor.primaryKey, 1);
-          break;
-
-        case 1:
-          assert_equals(cursor.value, "pie");
-          assert_equals(cursor.primaryKey, 4);
-          break;
-
-        default:
-          assert_unreached("Unexpected count: " + count);
-      }
-
-      count++;
-      cursor.advance(1);
-    });
-    rq.onerror = t.unreached_func("unexpected error")
-  },
-  document.title + " - within single key range, with several results"
-);
-
-</script>
diff --git a/tests/wpt/tests/IndexedDB/idbcursor-direction-index-keyrange.any.js b/tests/wpt/tests/IndexedDB/idbcursor-direction-index-keyrange.any.js
new file mode 100644
index 00000000000..0437ce2004e
--- /dev/null
+++ b/tests/wpt/tests/IndexedDB/idbcursor-direction-index-keyrange.any.js
@@ -0,0 +1,55 @@
+// META: global=window,worker
+// META: title=IDBCursor direction - index with keyrange
+// META: script=resources/support.js
+
+// Spec: https://w3c.github.io/IndexedDB/#cursor-iteration-operation
+
+'use strict';
+
+let records = [1337, 'Alice', 'Bob', 'Bob', 'Greg', 'Åke', ['Anne']];
+let cases = [
+  {dir: 'next', expect: ['Alice:1', 'Bob:2', 'Bob:3', 'Greg:4']},
+  {dir: 'prev', expect: ['Greg:4', 'Bob:3', 'Bob:2', 'Alice:1']},
+  {dir: 'nextunique', expect: ['Alice:1', 'Bob:2', 'Greg:4']},
+  {dir: 'prevunique', expect: ['Greg:4', 'Bob:2', 'Alice:1']}
+];
+
+cases.forEach(function(testcase) {
+  let dir = testcase.dir;
+  let expect = testcase.expect;
+  indexeddb_test(
+      function(t, db, tx) {
+        let objStore = db.createObjectStore('test');
+        objStore.createIndex('idx', 'name');
+
+        for (let i = 0; i < records.length; i++) {
+          objStore.add({name: records[i]}, i);
+        }
+      },
+      function(t, db) {
+        let count = 0;
+        let rq = db.transaction('test', 'readonly')
+                     .objectStore('test')
+                     .index('idx')
+                     .openCursor(IDBKeyRange.bound('AA', 'ZZ'), dir);
+        rq.onsuccess = t.step_func(function(e) {
+          let cursor = e.target.result;
+          if (!cursor) {
+            assert_equals(count, expect.length, 'cursor runs');
+            t.done();
+            return;
+          }
+          assert_equals(
+              cursor.value.name + ':' + cursor.primaryKey, expect[count],
+              'cursor.value');
+          count++;
+          cursor.continue();
+        });
+        rq.onerror = t.step_func(function(e) {
+          e.preventDefault();
+          e.stopPropagation();
+          assert_unreached('rq.onerror - ' + e.message);
+        });
+      },
+      'IDBCursor direction - index with keyrange - ' + dir);
+});
diff --git a/tests/wpt/tests/IndexedDB/idbcursor-direction-index-keyrange.htm b/tests/wpt/tests/IndexedDB/idbcursor-direction-index-keyrange.htm
deleted file mode 100644
index c26997c9ff3..00000000000
--- a/tests/wpt/tests/IndexedDB/idbcursor-direction-index-keyrange.htm
+++ /dev/null
@@ -1,60 +0,0 @@
-<!DOCTYPE html>
-<meta charset=utf-8>
-<title>IDBCursor direction - index with keyrange</title>
-<link rel="author" href="mailto:odinho@opera.com" title="Odin Hørthe Omdal">
-<link rel=help href="http://dvcs.w3.org/hg/IndexedDB/raw-file/tip/Overview.html#cursor-iteration-operation">
-<link rel=assert title='If direction is "next", let found record be the first record in records which satisfy all of the following requirements'>
-<link rel=assert title="If position is defined, and source is an index, the record's key is equal to position and the record's value is greater than object store position or the record's key is greater than position.">
-<link rel=assert title='If direction is "prev", let found record be the last record in records which satisfy all of the following requirements'>
-<link rel=assert title="If position is defined, and source is an index, the record's key is equal to position and the record's value is less than object store position or the record's key is less than position.">
-<link rel=assert title="If range is defined, the record's key is in range.">
-<link rel=assert title="If temp record is defined, let found record be the first record in records whose key is equal to temp record's key.">
-<link rel=assert title="records is always sorted in ascending key order. In the case of source being an index, records is secondarily sorted in ascending value order.">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="resources/support.js"></script>
-
-<script>
-var records = [ 1337, "Alice", "Bob", "Bob", "Greg", "Åke", ["Anne"] ];
-var cases = [
-  {dir: 'next', expect: ['Alice:1', 'Bob:2', 'Bob:3', 'Greg:4']},
-  {dir: 'prev', expect: ['Greg:4',  'Bob:3', 'Bob:2', 'Alice:1']},
-  {dir: 'nextunique', expect: ['Alice:1', 'Bob:2', 'Greg:4']},
-  {dir: 'prevunique', expect: ['Greg:4',  'Bob:2', 'Alice:1']}
-];
-
-
-cases.forEach(function(testcase) {
-  var dir = testcase.dir;
-  var expect = testcase.expect;
-  indexeddb_test(
-    function(t, db, tx) {
-      var objStore = db.createObjectStore("test");
-      objStore.createIndex("idx", "name");
-
-      for (var i = 0; i < records.length; i++)
-        objStore.add({ name: records[i] }, i);
-    },
-    function(t, db) {
-      var count = 0;
-      var rq = db.transaction("test", "readonly").objectStore("test").index("idx").openCursor(IDBKeyRange.bound("AA", "ZZ"), dir);
-      rq.onsuccess = t.step_func(function(e) {
-        var cursor = e.target.result;
-        if (!cursor) {
-          assert_equals(count, expect.length, "cursor runs");
-          t.done();
-        }
-        assert_equals(cursor.value.name + ":" + cursor.primaryKey, expect[count], "cursor.value");
-        count++;
-        cursor.continue();
-      });
-      rq.onerror = t.step_func(function(e) {
-        e.preventDefault();
-        e.stopPropagation();
-        assert_unreached("rq.onerror - " + e.message);
-      });
-    },
-    document.title + ' - ' + dir
-  )
-});
-</script>
diff --git a/tests/wpt/tests/IndexedDB/idbcursor-direction-index.any.js b/tests/wpt/tests/IndexedDB/idbcursor-direction-index.any.js
new file mode 100644
index 00000000000..d573bf5932d
--- /dev/null
+++ b/tests/wpt/tests/IndexedDB/idbcursor-direction-index.any.js
@@ -0,0 +1,53 @@
+// META: global=window,worker
+// META: title=IDBCursor direction - index
+// META: script=resources/support.js
+
+// Spec: https://w3c.github.io/IndexedDB/#cursor-iteration-operation
+
+'use strict';
+
+let records = ['Alice', 'Bob', 'Bob', 'Greg'];
+let cases = [
+  {dir: 'next', expect: ['Alice:0', 'Bob:1', 'Bob:2', 'Greg:3']},
+  {dir: 'prev', expect: ['Greg:3', 'Bob:2', 'Bob:1', 'Alice:0']},
+  {dir: 'nextunique', expect: ['Alice:0', 'Bob:1', 'Greg:3']},
+  {dir: 'prevunique', expect: ['Greg:3', 'Bob:1', 'Alice:0']},
+];
+
+cases.forEach(function(testcase) {
+  let dir = testcase.dir;
+  let expect = testcase.expect;
+  indexeddb_test(
+      function(t, db, tx) {
+        let objStore = db.createObjectStore('test');
+        objStore.createIndex('idx', 'name');
+
+        for (let i = 0; i < records.length; i++)
+          objStore.add({name: records[i]}, i);
+      },
+      function(t, db) {
+        let count = 0;
+        let rq = db.transaction('test', 'readonly')
+                     .objectStore('test')
+                     .index('idx')
+                     .openCursor(undefined, dir);
+        rq.onsuccess = t.step_func(function(e) {
+          let cursor = e.target.result;
+          if (!cursor) {
+            assert_equals(count, expect.length, 'cursor runs');
+            t.done();
+          }
+          assert_equals(
+              cursor.value.name + ':' + cursor.primaryKey, expect[count],
+              'cursor.value');
+          count++;
+          cursor.continue();
+        });
+        rq.onerror = t.step_func(function(e) {
+          e.preventDefault();
+          e.stopPropagation();
+          assert_unreached('rq.onerror - ' + e.message);
+        });
+      },
+      'IDBCursor direction - index - ' + dir);
+});
diff --git a/tests/wpt/tests/IndexedDB/idbcursor-direction-index.htm b/tests/wpt/tests/IndexedDB/idbcursor-direction-index.htm
deleted file mode 100644
index a2adeb73d6b..00000000000
--- a/tests/wpt/tests/IndexedDB/idbcursor-direction-index.htm
+++ /dev/null
@@ -1,57 +0,0 @@
-<!DOCTYPE html>
-<title>IDBCursor direction - index</title>
-<link rel="author" href="mailto:odinho@opera.com" title="Odin Hørthe Omdal">
-<link rel=help href="http://dvcs.w3.org/hg/IndexedDB/raw-file/tip/Overview.html#cursor-iteration-operation">
-<link rel=assert title='If direction is "next", let found record be the first record in records which satisfy all of the following requirements'>
-<link rel=assert title="If position is defined, and source is an object store, the record's key is greater than position.">
-<link rel=assert title='If direction is "prev", let found record be the last record in records which satisfy all of the following requirements'>
-<link rel=assert title="If position is defined, and source is an object store, the record's key is less than position.">
-<link rel=assert title="Set cursor's position to found record's key. If source is an index, set cursor's object store position to found record's value.">
-<link rel=assert title="Set cursor's key to found record's key.">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="resources/support.js"></script>
-
-<script>
-var records = [ "Alice", "Bob", "Bob", "Greg" ];
-var cases = [
-  {dir: 'next', expect: ['Alice:0', 'Bob:1', 'Bob:2', 'Greg:3']},
-  {dir: 'prev', expect: ['Greg:3',  'Bob:2', 'Bob:1', 'Alice:0']},
-  {dir: 'nextunique', expect: ['Alice:0', 'Bob:1', 'Greg:3']},
-  {dir: 'prevunique', expect: ['Greg:3',  'Bob:1', 'Alice:0']},
-];
-
-cases.forEach(function(testcase) {
-  var dir = testcase.dir;
-  var expect = testcase.expect;
-  indexeddb_test(
-    function(t, db, tx) {
-      var objStore = db.createObjectStore("test");
-      objStore.createIndex("idx", "name");
-
-      for (var i = 0; i < records.length; i++)
-        objStore.add({ name: records[i] }, i);
-    },
-    function(t, db) {
-      var count = 0;
-      var rq = db.transaction("test", "readonly").objectStore("test").index("idx").openCursor(undefined, dir);
-      rq.onsuccess = t.step_func(function(e) {
-        var cursor = e.target.result;
-        if (!cursor) {
-          assert_equals(count, expect.length, "cursor runs");
-          t.done();
-        }
-        assert_equals(cursor.value.name + ":" + cursor.primaryKey, expect[count], "cursor.value");
-        count++;
-        cursor.continue();
-      });
-      rq.onerror = t.step_func(function(e) {
-        e.preventDefault();
-        e.stopPropagation();
-        assert_unreached("rq.onerror - " + e.message);
-      });
-    },
-    document.title + ' - ' + dir
-  );
-});
-</script>
diff --git a/tests/wpt/tests/IndexedDB/idbcursor-direction-objectstore-keyrange.any.js b/tests/wpt/tests/IndexedDB/idbcursor-direction-objectstore-keyrange.any.js
new file mode 100644
index 00000000000..ad5ddc70bab
--- /dev/null
+++ b/tests/wpt/tests/IndexedDB/idbcursor-direction-objectstore-keyrange.any.js
@@ -0,0 +1,49 @@
+// META: global=window,worker
+// META: title=IDBCursor direction - object store with keyrange
+// META: script=resources/support.js
+
+// Spec: https://w3c.github.io/IndexedDB/#cursor-iteration-operation
+
+'use strict';
+
+let records = [1337, 'Alice', 'Bob', 'Greg', 'Åke', ['Anne']];
+let directions = ['next', 'prev', 'nextunique', 'prevunique'];
+let cases = [
+  {dir: 'next', expect: ['Alice', 'Bob', 'Greg']},
+  {dir: 'prev', expect: ['Greg', 'Bob', 'Alice']},
+  {dir: 'nextunique', expect: ['Alice', 'Bob', 'Greg']},
+  {dir: 'prevunique', expect: ['Greg', 'Bob', 'Alice']},
+];
+
+cases.forEach(function(testcase) {
+  let dir = testcase.dir;
+  let expect = testcase.expect;
+  indexeddb_test(
+      function(t, db, tx) {
+        let objStore = db.createObjectStore('test');
+        for (let i = 0; i < records.length; i++)
+          objStore.add(records[i], records[i]);
+      },
+      function(t, db) {
+        let count = 0;
+        let rq = db.transaction('test', 'readonly')
+                     .objectStore('test')
+                     .openCursor(IDBKeyRange.bound('AA', 'ZZ'), dir);
+        rq.onsuccess = t.step_func(function(e) {
+          let cursor = e.target.result;
+          if (!cursor) {
+            assert_equals(count, expect.length, 'cursor runs');
+            t.done();
+          }
+          assert_equals(cursor.value, expect[count], 'cursor.value');
+          count++;
+          cursor.continue();
+        });
+        rq.onerror = t.step_func(function(e) {
+          e.preventDefault();
+          e.stopPropagation();
+          assert_unreached('rq.onerror - ' + e.message);
+        });
+      },
+      'IDBCursor direction - object store with keyrange - ' + dir);
+});
diff --git a/tests/wpt/tests/IndexedDB/idbcursor-direction-objectstore-keyrange.htm b/tests/wpt/tests/IndexedDB/idbcursor-direction-objectstore-keyrange.htm
deleted file mode 100644
index e5b5a22de9d..00000000000
--- a/tests/wpt/tests/IndexedDB/idbcursor-direction-objectstore-keyrange.htm
+++ /dev/null
@@ -1,54 +0,0 @@
-<!DOCTYPE html>
-<meta charset=utf-8>
-<title>IDBCursor direction - object store with keyrange</title>
-<link rel="author" href="mailto:odinho@opera.com" title="Odin Hørthe Omdal">
-<link rel=help href="http://dvcs.w3.org/hg/IndexedDB/raw-file/tip/Overview.html#cursor-iteration-operation">
-<link rel=assert title='If direction is "next", let found record be the first record in records which satisfy all of the following requirements'>
-<link rel=assert title='If direction is "prev", let found record be the last record in records which satisfy all of the following requirements'>
-<link rel=assert title="If range is defined, the record's key is in range.">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="resources/support.js"></script>
-
-<script>
-var records = [ 1337, "Alice", "Bob", "Greg", "Åke", ["Anne"] ];
-var directions = ["next", "prev", "nextunique", "prevunique"];
-var cases = [
-  {dir: 'next', expect: ['Alice', 'Bob', 'Greg']},
-  {dir: 'prev', expect: ['Greg', 'Bob', 'Alice']},
-  {dir: 'nextunique', expect: ['Alice', 'Bob', 'Greg']},
-  {dir: 'prevunique', expect: ['Greg', 'Bob', 'Alice']},
-];
-
-cases.forEach(function(testcase) {
-  var dir = testcase.dir;
-  var expect = testcase.expect;
-  indexeddb_test(
-    function(t, db, tx) {
-        var objStore = db.createObjectStore("test");
-        for (var i = 0; i < records.length; i++)
-          objStore.add(records[i], records[i]);
-    },
-    function(t, db) {
-      var count = 0;
-      var rq = db.transaction("test", "readonly").objectStore("test").openCursor(IDBKeyRange.bound("AA", "ZZ"), dir);
-      rq.onsuccess = t.step_func(function(e) {
-        var cursor = e.target.result;
-        if (!cursor) {
-          assert_equals(count, expect.length, "cursor runs");
-          t.done();
-        }
-        assert_equals(cursor.value, expect[count], "cursor.value");
-        count++;
-        cursor.continue();
-      });
-      rq.onerror = t.step_func(function(e) {
-        e.preventDefault();
-        e.stopPropagation();
-        assert_unreached("rq.onerror - " + e.message);
-      });
-    },
-    document.title + ' - ' + dir
-  );
-});
-</script>
diff --git a/tests/wpt/tests/IndexedDB/idbcursor-direction-objectstore.any.js b/tests/wpt/tests/IndexedDB/idbcursor-direction-objectstore.any.js
new file mode 100644
index 00000000000..6d3e67e252e
--- /dev/null
+++ b/tests/wpt/tests/IndexedDB/idbcursor-direction-objectstore.any.js
@@ -0,0 +1,49 @@
+// META: global=window,worker
+// META: title=IDBCursor direction - object store
+// META: script=resources/support.js
+
+// Spec: https://w3c.github.io/IndexedDB/#cursor-iteration-operation
+
+'use strict';
+
+let records = ['Alice', 'Bob', 'Greg'];
+let directions = ['next', 'prev', 'nextunique', 'prevunique'];
+let cases = [
+  {dir: 'next', expect: ['Alice', 'Bob', 'Greg']},
+  {dir: 'prev', expect: ['Greg', 'Bob', 'Alice']},
+  {dir: 'nextunique', expect: ['Alice', 'Bob', 'Greg']},
+  {dir: 'prevunique', expect: ['Greg', 'Bob', 'Alice']},
+];
+
+cases.forEach(function(testcase) {
+  let dir = testcase.dir;
+  let expect = testcase.expect;
+  indexeddb_test(
+      function(t, db, tx) {
+        let objStore = db.createObjectStore('test');
+        for (let i = 0; i < records.length; i++)
+          objStore.add(records[i], records[i]);
+      },
+      function(t, db) {
+        let count = 0;
+        let rq = db.transaction('test', 'readonly')
+                     .objectStore('test')
+                     .openCursor(undefined, dir);
+        rq.onsuccess = t.step_func(function(e) {
+          let cursor = e.target.result;
+          if (!cursor) {
+            assert_equals(count, expect.length, 'cursor runs');
+            t.done();
+          }
+          assert_equals(cursor.value, expect[count], 'cursor.value');
+          count++;
+          cursor.continue();
+        });
+        rq.onerror = t.step_func(function(e) {
+          e.preventDefault();
+          e.stopPropagation();
+          assert_unreached('rq.onerror - ' + e.message);
+        });
+      },
+      'IDBCursor direction - object store - ' + dir);
+});
diff --git a/tests/wpt/tests/IndexedDB/idbcursor-direction-objectstore.htm b/tests/wpt/tests/IndexedDB/idbcursor-direction-objectstore.htm
deleted file mode 100644
index cac1a589d78..00000000000
--- a/tests/wpt/tests/IndexedDB/idbcursor-direction-objectstore.htm
+++ /dev/null
@@ -1,56 +0,0 @@
-<!DOCTYPE html>
-<title>IDBCursor direction - object store</title>
-<link rel="author" href="mailto:odinho@opera.com" title="Odin Hørthe Omdal">
-<link rel=help href="http://dvcs.w3.org/hg/IndexedDB/raw-file/tip/Overview.html#cursor-iteration-operation">
-<link rel=assert title='If direction is "next", let found record be the first record in records which satisfy all of the following requirements'>
-<link rel=assert title="If position is defined, and source is an object store, the record's key is greater than position.">
-<link rel=assert title='If direction is "prev", let found record be the last record in records which satisfy all of the following requirements'>
-<link rel=assert title="If position is defined, and source is an object store, the record's key is less than position.">
-<link rel=assert title="Set cursor's position to found record's key. If source is an index, set cursor's object store position to found record's value.">
-<link rel=assert title="Set cursor's key to found record's key.">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="resources/support.js"></script>
-
-<script>
-var records = [ "Alice", "Bob", "Greg" ];
-var directions = ["next", "prev", "nextunique", "prevunique"];
-var cases = [
-  {dir: 'next', expect: ['Alice', 'Bob', 'Greg']},
-  {dir: 'prev', expect: ['Greg', 'Bob', 'Alice']},
-  {dir: 'nextunique', expect: ['Alice', 'Bob', 'Greg']},
-  {dir: 'prevunique', expect: ['Greg', 'Bob', 'Alice']},
-];
-
-cases.forEach(function(testcase) {
-  var dir = testcase.dir;
-  var expect = testcase.expect;
-  indexeddb_test(
-    function(t, db, tx) {
-      var objStore = db.createObjectStore("test");
-      for (var i = 0; i < records.length; i++)
-        objStore.add(records[i], records[i]);
-    },
-    function(t, db) {
-      var count = 0;
-      var rq = db.transaction("test", "readonly").objectStore("test").openCursor(undefined, dir);
-      rq.onsuccess = t.step_func(function(e) {
-        var cursor = e.target.result;
-        if (!cursor) {
-          assert_equals(count, expect.length, "cursor runs");
-          t.done();
-        }
-        assert_equals(cursor.value, expect[count], "cursor.value");
-        count++;
-        cursor.continue();
-      });
-      rq.onerror = t.step_func(function(e) {
-        e.preventDefault();
-        e.stopPropagation();
-        assert_unreached("rq.onerror - " + e.message);
-      });
-    },
-    document.title + ' - ' + dir
-  );
-});
-</script>
diff --git a/tests/wpt/tests/IndexedDB/idbcursor-direction.any.js b/tests/wpt/tests/IndexedDB/idbcursor-direction.any.js
new file mode 100644
index 00000000000..e65fc287c46
--- /dev/null
+++ b/tests/wpt/tests/IndexedDB/idbcursor-direction.any.js
@@ -0,0 +1,70 @@
+// META: global=window,worker
+// META: title=IDBCursor.direction
+// META: script=resources/support.js
+
+'use strict';
+
+function cursor_direction(constant, dir) {
+  let db;
+  let t = async_test('IDBCursor.direction - ' + dir);
+  let expected = dir ? dir : 'next';
+
+  let open_rq = createdb(t);
+
+  open_rq.onupgradeneeded = function(e) {
+    db = e.target.result;
+    t.add_cleanup(function() {
+      db.close();
+      indexedDB.deleteDatabase(db.name);
+    });
+
+    let objStore = db.createObjectStore('test');
+
+    objStore.add('data', 'key');
+  };
+
+  open_rq.onsuccess = t.step_func(function(e) {
+    let cursor_rq;
+    let count = 0;
+    let os = db.transaction('test', 'readonly').objectStore('test');
+    if (dir)
+      cursor_rq = os.openCursor(undefined, dir);
+    else
+      cursor_rq = os.openCursor();
+
+    cursor_rq.onsuccess = t.step_func(function(e) {
+      let cursor = e.target.result;
+
+      assert_equals(cursor.direction, constant, 'direction constant');
+      assert_equals(cursor.direction, expected, 'direction');
+      assert_readonly(cursor, 'direction');
+
+      count++;
+      if (count >= 2)
+        t.done();
+    });
+
+    let cursor_rq2 = db.transaction('test', 'readonly')
+                         .objectStore('test')
+                         .openCursor(undefined, constant);
+
+    cursor_rq2.onsuccess = t.step_func(function(e) {
+      let cursor = e.target.result;
+
+      assert_equals(
+          cursor.direction, constant, 'direction constant (second try)');
+      assert_equals(cursor.direction, expected, 'direction (second try)');
+      assert_readonly(cursor, 'direction');
+
+      count++;
+      if (count >= 2)
+        t.done();
+    });
+  });
+}
+
+cursor_direction('next');
+cursor_direction('next', 'next');
+cursor_direction('prev', 'prev');
+cursor_direction('nextunique', 'nextunique');
+cursor_direction('prevunique', 'prevunique');
diff --git a/tests/wpt/tests/IndexedDB/idbcursor-direction.htm b/tests/wpt/tests/IndexedDB/idbcursor-direction.htm
deleted file mode 100644
index 18e3a02ef87..00000000000
--- a/tests/wpt/tests/IndexedDB/idbcursor-direction.htm
+++ /dev/null
@@ -1,76 +0,0 @@
-<!DOCTYPE html>
-<title>IDBCursor.direction</title>
-<link rel="author" href="mailto:odinho@opera.com" title="Odin Hørthe Omdal">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="resources/support.js"></script>
-
-<script>
-
-    function cursor_direction(constant, dir)
-    {
-        var db,
-          t = async_test(document.title + " - " + dir),
-          expected = dir ? dir : "next";
-
-        var open_rq = createdb(t);
-
-        open_rq.onupgradeneeded = function(e) {
-            db = e.target.result;
-            t.add_cleanup(function() {
-                db.close();
-                indexedDB.deleteDatabase(db.name);
-            });
-
-            var objStore = db.createObjectStore("test");
-
-            objStore.add("data", "key");
-        };
-
-        open_rq.onsuccess = t.step_func(function(e) {
-            var cursor_rq, count = 0;
-            var os = db.transaction("test", "readonly")
-                       .objectStore("test");
-            if (dir)
-                cursor_rq = os.openCursor(undefined, dir);
-            else
-                cursor_rq = os.openCursor();
-
-            cursor_rq.onsuccess = t.step_func(function(e) {
-                var cursor = e.target.result;
-
-                assert_equals(cursor.direction, constant, 'direction constant');
-                assert_equals(cursor.direction, expected, 'direction');
-                assert_readonly(cursor, 'direction');
-
-                count++;
-                if (count >= 2)
-                    t.done();
-            });
-
-            var cursor_rq2 = db.transaction("test", "readonly")
-                              .objectStore("test")
-                              .openCursor(undefined, constant);
-
-            cursor_rq2.onsuccess = t.step_func(function(e) {
-                var cursor = e.target.result;
-
-                assert_equals(cursor.direction, constant, 'direction constant (second try)');
-                assert_equals(cursor.direction, expected, 'direction (second try)');
-                assert_readonly(cursor, 'direction');
-
-                count++;
-                if (count >= 2)
-                    t.done();
-            });
-
-        });
-    }
-
-    cursor_direction("next");
-    cursor_direction("next",       "next");
-    cursor_direction("prev",       "prev");
-    cursor_direction("nextunique", "nextunique");
-    cursor_direction("prevunique", "prevunique");
-
-</script>
diff --git a/tests/wpt/tests/IndexedDB/idbfactory_deleteDatabase.any.js b/tests/wpt/tests/IndexedDB/idbfactory_deleteDatabase.any.js
new file mode 100644
index 00000000000..ea9f9593102
--- /dev/null
+++ b/tests/wpt/tests/IndexedDB/idbfactory_deleteDatabase.any.js
@@ -0,0 +1,116 @@
+// META: title=IDBFactory.deleteDatabase()
+// META: global=window,worker
+// META: script=resources/support.js
+
+'use strict';
+
+async_test(t => {
+  const open_rq = createdb(t, undefined, 9);
+
+  open_rq.onupgradeneeded = t.step_func(e => {});
+  open_rq.onsuccess = t.step_func(e => {
+    const db = e.target.result;
+    db.close();
+
+    const delete_rq = indexedDB.deleteDatabase(db.name);
+    delete_rq.onerror = t.step_func(e => {
+      assert_unreached('Unexpected delete_rq.error event');
+    });
+    delete_rq.onsuccess = t.step_func(e => {
+      assert_equals(e.target.source, null, 'event.target.source');
+      t.done();
+    });
+  });
+}, 'deleteDatabase() request should have no source');
+
+async_test(t => {
+  const open_rq = createdb(t, undefined, 9);
+
+  open_rq.onupgradeneeded = t.step_func(e => {});
+
+  open_rq.onsuccess = t.step_func(e => {
+    const db = e.target.result;
+    db.close();
+
+    const delete_rq = indexedDB.deleteDatabase(db.name);
+    delete_rq.onerror = t.step_func(e => {
+      assert_unreached('Unexpected delete_rq.error event');
+    });
+
+    delete_rq.onsuccess = t.step_func(e => {
+      assert_equals(e.target.result, undefined, 'result');
+      t.done();
+    });
+  });
+}, 'Result of the deleteDatabase() request is set to undefined.');
+
+async_test(t => {
+  let db;
+  const open_rq = createdb(t, undefined, 9);
+
+  open_rq.onupgradeneeded = t.step_func(e => {
+    db = e.target.result;
+    db.createObjectStore('os');
+  });
+
+  open_rq.onsuccess = t.step_func(e => {
+    db.close();
+
+    const delete_rq = indexedDB.deleteDatabase(db.name);
+    delete_rq.onerror = t.step_func(e => {
+      assert_unreached('Unexpected delete_rq.error event');
+    });
+
+    delete_rq.onsuccess = t.step_func(e => {
+      assert_equals(e.oldVersion, 9, 'oldVersion');
+      assert_equals(e.newVersion, null, 'newVersion');
+      assert_equals(e.target.result, undefined, 'result');
+      assert_true(
+          e instanceof IDBVersionChangeEvent,
+          'e instanceof IDBVersionChangeEvent');
+      t.done();
+    });
+  });
+}, 'The deleteDatabase() request\'s success event is an IDBVersionChangeEvent.');
+
+async_test(t => {
+  const dbname = location + '-' + t.name;
+
+  indexedDB.deleteDatabase(dbname);
+
+  let db;
+  const openrq = indexedDB.open(dbname, 3);
+
+  openrq.onupgradeneeded = t.step_func(e => {
+    e.target.result.createObjectStore('store');
+  });
+
+  openrq.onsuccess = t.step_func(e => {
+    db = e.target.result;
+
+    // Errors
+    db.onversionchange = fail(t, 'db.versionchange');
+    db.onerror = fail(t, 'db.error');
+    db.abort = fail(t, 'db.abort');
+
+    step_timeout(t.step_func(() => Second(t, dbname)), 4);
+    db.close();
+  });
+
+  // Errors
+  openrq.onerror = fail(t, 'open.error');
+  openrq.onblocked = fail(t, 'open.blocked');
+}, 'Delete an existing database - Test events opening a second \
+database when one connection is open already');
+
+function Second(t, dbname) {
+  const deleterq = indexedDB.deleteDatabase(dbname);
+
+  deleterq.onsuccess = e => {
+    t.done();
+  };
+
+  deleterq.onerror = fail(t, 'delete.error');
+  deleterq.onblocked = fail(t, 'delete.blocked');
+  deleterq.onupgradeneeded = fail(t, 'delete.upgradeneeded');
+}
diff --git a/tests/wpt/tests/IndexedDB/idbfactory_deleteDatabase.htm b/tests/wpt/tests/IndexedDB/idbfactory_deleteDatabase.htm
deleted file mode 100644
index 28c18cccbb0..00000000000
--- a/tests/wpt/tests/IndexedDB/idbfactory_deleteDatabase.htm
+++ /dev/null
@@ -1,25 +0,0 @@
-<!DOCTYPE html>
-<title>IDBFactory.deleteDatabase() - request has no source </title>
-<link rel="author" title="Microsoft" href="http://www.microsoft.com">
-<script src=/resources/testharness.js></script>
-<script src=/resources/testharnessreport.js></script>
-<script src=resources/support.js></script>
-
-<script>
-    var open_rq = createdb(async_test(), undefined, 9);
-
-    open_rq.onupgradeneeded = function(e) {};
-    open_rq.onsuccess = function(e) {
-        var db = e.target.result;
-        db.close();
-
-        var delete_rq = window.indexedDB.deleteDatabase(db.name);
-        delete_rq.onerror = fail(this, "Unexpected delete_rq.error event");
-        delete_rq.onsuccess = this.step_func( function (e) {
-            assert_equals(e.target.source, null, "event.target.source")
-            this.done();
-        });
-    }
-</script>
-
-<div id=log></div>
diff --git a/tests/wpt/tests/IndexedDB/idbfactory_deleteDatabase2.htm b/tests/wpt/tests/IndexedDB/idbfactory_deleteDatabase2.htm
deleted file mode 100644
index e503c3437fb..00000000000
--- a/tests/wpt/tests/IndexedDB/idbfactory_deleteDatabase2.htm
+++ /dev/null
@@ -1,27 +0,0 @@
-<!DOCTYPE html>
-<title>IDBFactory.deleteDatabase() - result of the request is set to undefined</title>
-<link rel="author" title="Microsoft" href="http://www.microsoft.com">
-<link rel=help href="http://dvcs.w3.org/hg/IndexedDB/raw-file/tip/Overview.html#widl-IDBFactory-deleteDatabase-IDBOpenDBRequest-DOMString-name">
-<meta name=assert title="If the steps above are successful, the implementation must set the result of the request to undefined and fire a success event at the request.">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="resources/support.js"></script>
-
-<script>
-    var open_rq = createdb(async_test(), undefined, 9);
-
-    open_rq.onupgradeneeded = function(e) {};
-    open_rq.onsuccess = function(e) {
-        var db = e.target.result;
-        db.close();
-
-        var delete_rq = window.indexedDB.deleteDatabase(db.name);
-        delete_rq.onerror = fail(this, "Unexpected delete_rq.error event");
-        delete_rq.onsuccess = this.step_func( function (e) {
-            assert_equals(e.target.result, undefined, "result");
-            this.done();
-        });
-    }
-</script>
-
-<div id="log"></div>
diff --git a/tests/wpt/tests/IndexedDB/idbfactory_deleteDatabase3.htm b/tests/wpt/tests/IndexedDB/idbfactory_deleteDatabase3.htm
deleted file mode 100644
index 2895013f271..00000000000
--- a/tests/wpt/tests/IndexedDB/idbfactory_deleteDatabase3.htm
+++ /dev/null
@@ -1,33 +0,0 @@
-<!DOCTYPE html>
-<title>IDBFactory.deleteDatabase() - success event</title>
-<link rel="author" href="mailto:odinho@opera.com" title="Odin Hørthe Omdal">
-<link rel=help href="http://dvcs.w3.org/hg/IndexedDB/raw-file/tip/Overview.html#widl-IDBFactory-deleteDatabase-IDBOpenDBRequest-DOMString-name">
-<meta name=assert title="If the steps above are successful, the implementation must set the result of the request to undefined and fire a success event at the request. The event must implement the IDBVersionChangeEvent interface and have oldVersion set to database version and have the newVersion property set to null.">
-<script src=/resources/testharness.js></script>
-<script src=/resources/testharnessreport.js></script>
-<script src=resources/support.js></script>
-
-<script>
-    var db
-    var open_rq = createdb(async_test(), undefined, 9)
-
-    open_rq.onupgradeneeded = function(e) {
-        db = e.target.result
-        db.createObjectStore('os')
-    }
-    open_rq.onsuccess = function(e) {
-        db.close()
-
-        var delete_rq = window.indexedDB.deleteDatabase(db.name)
-        delete_rq.onerror = fail(this, "Unexpected delete_rq.error event")
-        delete_rq.onsuccess = this.step_func( function (e) {
-            assert_equals(e.oldVersion, 9, "oldVersion")
-            assert_equals(e.newVersion, null, "newVersion")
-            assert_equals(e.target.result, undefined, "result")
-            assert_true(e instanceof IDBVersionChangeEvent, "e instanceof IDBVersionChangeEvent")
-            this.done()
-        })
-    }
-</script>
-
-<div id=log></div>
diff --git a/tests/wpt/tests/IndexedDB/idbfactory_deleteDatabase4.htm b/tests/wpt/tests/IndexedDB/idbfactory_deleteDatabase4.htm
deleted file mode 100644
index 5a0d90bf505..00000000000
--- a/tests/wpt/tests/IndexedDB/idbfactory_deleteDatabase4.htm
+++ /dev/null
@@ -1,62 +0,0 @@
-<!DOCTYPE html>
-<title>Test events opening a second database when one connection is open already</title>
-<link rel="author" href="mailto:odinho@opera.com" title="Odin Hørthe Omdal">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="resources/support.js"></script>
-
-<div id="log"></div>
-
-<script>
-
-    var t = async_test("Delete an existing database"),
-        dbname = location + '-' + t.name;
-
-    t.step(function() {
-        indexedDB.deleteDatabase(dbname);
-
-        var db;
-        var openrq = indexedDB.open(dbname, 3);
-
-        openrq.onupgradeneeded = function(e) {
-            e.target.result.createObjectStore('store');
-        };
-        openrq.onsuccess = t.step_func(function(e) {
-            db = e.target.result;
-
-            // Errors
-            db.onversionchange = fail(t, "db.versionchange");
-            db.onerror = fail(t, "db.error");
-            db.abort = fail(t, "db.abort");
-
-            step_timeout(t.step_func(Second), 4);
-            db.close();
-        });
-
-        // Errors
-        openrq.onerror = fail(t, "open.error");
-        openrq.onblocked = fail(t, "open.blocked");
-    });
-
-    function Second(e) {
-        var deleterq = indexedDB.deleteDatabase(dbname);
-
-        deleterq.onsuccess = function(e) { t.done(); }
-
-        deleterq.onerror = fail(t, "delete.error");
-        deleterq.onblocked = fail(t, "delete.blocked");
-        deleterq.onupgradeneeded = fail(t, "delete.upgradeneeded");
-    }
-
-    async_test("Delete a nonexistent database").step(function(e) {
-        var deleterq = indexedDB.deleteDatabase('nonexistent');
-
-        deleterq.onsuccess = this.step_func(function(e) { this.done(); });
-
-        deleterq.onerror = fail(this, "delete.error");
-        deleterq.onblocked = fail(this, "delete.blocked");
-        deleterq.onupgradeneeded = fail(this, "delete.upgradeneeded");
-    });
-
-</script>
-</script>
diff --git a/tests/wpt/tests/IndexedDB/idbobjectstore-add-put-exception-order.any.js b/tests/wpt/tests/IndexedDB/idbobjectstore-add-put-exception-order.any.js
new file mode 100644
index 00000000000..e1f34cfc7bf
--- /dev/null
+++ b/tests/wpt/tests/IndexedDB/idbobjectstore-add-put-exception-order.any.js
@@ -0,0 +1,81 @@
+// META: global=window,worker
+// META: title=IndexedDB: IDBObjectStore add()/put() Exception Ordering
+// META: script=resources/support.js
+
+// Spec: https://w3c.github.io/IndexedDB/#dom-idbobjectstore-put
+// Spec: https://w3c.github.io/IndexedDB/#dom-idbobjectstore-add
+
+'use strict';
+
+['put', 'add'].forEach(method => {
+  indexeddb_test(
+      (t, db) => {
+        const store = db.createObjectStore('s');
+        const store2 = db.createObjectStore('s2');
+
+        db.deleteObjectStore('s2');
+
+        setTimeout(
+            t.step_func(() => {
+              assert_throws_dom(
+                  'InvalidStateError',
+                  () => {
+                    store2[method]('key', 'value');
+                  },
+                  '"has been deleted" check (InvalidStateError) should precede ' +
+                      '"not active" check (TransactionInactiveError)');
+              t.done();
+            }),
+            0);
+      },
+      (t, db) => {},
+      `IDBObjectStore.${method} exception order: ` +
+          'InvalidStateError vs. TransactionInactiveError');
+
+  indexeddb_test(
+      (t, db) => {
+        const store = db.createObjectStore('s');
+      },
+      (t, db) => {
+        const tx = db.transaction('s', 'readonly');
+        const store = tx.objectStore('s');
+
+        setTimeout(
+            t.step_func(() => {
+              assert_throws_dom(
+                  'TransactionInactiveError',
+                  () => {
+                    store[method]('key', 'value');
+                  },
+                  '"not active" check (TransactionInactiveError) should precede ' +
+                      '"read only" check (ReadOnlyError)');
+              t.done();
+            }),
+            0);
+      },
+
+      `IDBObjectStore.${method} exception order: ` +
+          'TransactionInactiveError vs. ReadOnlyError');
+
+  indexeddb_test(
+      (t, db) => {
+        const store = db.createObjectStore('s');
+      },
+      (t, db) => {
+        const tx = db.transaction('s', 'readonly');
+        const store = tx.objectStore('s');
+
+        assert_throws_dom(
+            'ReadOnlyError',
+            () => {
+              store[method]({}, 'value');
+            },
+            '"read only" check (ReadOnlyError) should precede ' +
+                'key/data check (DataError)');
+
+        t.done();
+      },
+
+      `IDBObjectStore.${method} exception order: ` +
+          'ReadOnlyError vs. DataError');
+});
diff --git a/tests/wpt/tests/IndexedDB/idbobjectstore-add-put-exception-order.html b/tests/wpt/tests/IndexedDB/idbobjectstore-add-put-exception-order.html
deleted file mode 100644
index e5a73d4b9fa..00000000000
--- a/tests/wpt/tests/IndexedDB/idbobjectstore-add-put-exception-order.html
+++ /dev/null
@@ -1,74 +0,0 @@
-<!doctype html>
-<meta charset=utf-8>
-<title>IndexedDB: IDBObjectStore add()/put() Exception Ordering</title>
-<link rel="help" href="https://w3c.github.io/IndexedDB/#dom-idbobjectstore-put">
-<link rel="help" href="https://w3c.github.io/IndexedDB/#dom-idbobjectstore-add">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="resources/support.js"></script>
-<script>
-
-['put', 'add'].forEach(method => {
-  indexeddb_test(
-    (t, db) => {
-      const store = db.createObjectStore('s');
-      const store2 = db.createObjectStore('s2');
-
-      db.deleteObjectStore('s2');
-
-      setTimeout(t.step_func(() => {
-        assert_throws_dom(
-          'InvalidStateError', () => { store2[method]('key', 'value'); },
-          '"has been deleted" check (InvalidStateError) should precede ' +
-          '"not active" check (TransactionInactiveError)');
-        t.done();
-      }), 0);
-    },
-    (t, db) => {},
-    `IDBObjectStore.${method} exception order: ` +
-    'InvalidStateError vs. TransactionInactiveError'
-  );
-
-  indexeddb_test(
-    (t, db) => {
-      const store = db.createObjectStore('s');
-    },
-    (t, db) => {
-      const tx = db.transaction('s', 'readonly');
-      const store = tx.objectStore('s');
-
-      setTimeout(t.step_func(() => {
-        assert_throws_dom(
-          'TransactionInactiveError', () => { store[method]('key', 'value'); },
-          '"not active" check (TransactionInactiveError) should precede ' +
-          '"read only" check (ReadOnlyError)');
-        t.done();
-      }), 0);
-    },
-
-    `IDBObjectStore.${method} exception order: ` +
-    'TransactionInactiveError vs. ReadOnlyError'
-  );
-
-  indexeddb_test(
-    (t, db) => {
-      const store = db.createObjectStore('s');
-    },
-    (t, db) => {
-      const tx = db.transaction('s', 'readonly');
-      const store = tx.objectStore('s');
-
-      assert_throws_dom(
-        'ReadOnlyError', () => { store[method]({}, 'value'); },
-        '"read only" check (ReadOnlyError) should precede ' +
-        'key/data check (DataError)');
-
-      t.done();
-    },
-
-    `IDBObjectStore.${method} exception order: ` +
-    'ReadOnlyError vs. DataError'
-  );
-});
-
-</script>
diff --git a/tests/wpt/tests/IndexedDB/idbobjectstore-clear-exception-order.any.js b/tests/wpt/tests/IndexedDB/idbobjectstore-clear-exception-order.any.js
new file mode 100644
index 00000000000..efb8cfa2b43
--- /dev/null
+++ b/tests/wpt/tests/IndexedDB/idbobjectstore-clear-exception-order.any.js
@@ -0,0 +1,56 @@
+// META: global=window,worker
+// META: title=IndexedDB: IDBObjectStore clear() Exception Ordering
+// META: script=resources/support.js
+
+// Spec: https://w3c.github.io/IndexedDB/#dom-idbobjectstore-clear
+
+'use strict';
+
+indexeddb_test(
+    (t, db) => {
+      const store = db.createObjectStore('s');
+      const store2 = db.createObjectStore('s2');
+
+      db.deleteObjectStore('s2');
+
+      setTimeout(
+          t.step_func(() => {
+            assert_throws_dom(
+                'InvalidStateError',
+                () => {
+                  store2.clear();
+                },
+                '"has been deleted" check (InvalidStateError) should precede ' +
+                    '"not active" check (TransactionInactiveError)');
+            t.done();
+          }),
+          0);
+    },
+    (t, db) => {},
+    'IDBObjectStore.clear exception order: ' +
+        'InvalidStateError vs. TransactionInactiveError');
+
+indexeddb_test(
+    (t, db) => {
+      const store = db.createObjectStore('s');
+    },
+    (t, db) => {
+      const tx = db.transaction('s', 'readonly');
+      const store = tx.objectStore('s');
+
+      setTimeout(
+          t.step_func(() => {
+            assert_throws_dom(
+                'TransactionInactiveError',
+                () => {
+                  store.clear();
+                },
+                '"not active" check (TransactionInactiveError) should precede ' +
+                    '"read only" check (ReadOnlyError)');
+            t.done();
+          }),
+          0);
+    },
+
+    'IDBObjectStore.clear exception order: ' +
+        'TransactionInactiveError vs. ReadOnlyError');
diff --git a/tests/wpt/tests/IndexedDB/idbobjectstore-clear-exception-order.html b/tests/wpt/tests/IndexedDB/idbobjectstore-clear-exception-order.html
deleted file mode 100644
index 993704d1d3a..00000000000
--- a/tests/wpt/tests/IndexedDB/idbobjectstore-clear-exception-order.html
+++ /dev/null
@@ -1,51 +0,0 @@
-<!doctype html>
-<meta charset=utf-8>
-<title>IndexedDB: IDBObjectStore clear() Exception Ordering</title>
-<link rel="help" href="https://w3c.github.io/IndexedDB/#dom-idbobjectstore-clear">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="resources/support.js"></script>
-<script>
-
-indexeddb_test(
-  (t, db) => {
-    const store = db.createObjectStore('s');
-    const store2 = db.createObjectStore('s2');
-
-    db.deleteObjectStore('s2');
-
-    setTimeout(t.step_func(() => {
-      assert_throws_dom(
-        'InvalidStateError', () => { store2.clear(); },
-        '"has been deleted" check (InvalidStateError) should precede ' +
-        '"not active" check (TransactionInactiveError)');
-      t.done();
-    }), 0);
-  },
-  (t, db) => {},
-  'IDBObjectStore.clear exception order: ' +
-  'InvalidStateError vs. TransactionInactiveError'
-);
-
-indexeddb_test(
-  (t, db) => {
-    const store = db.createObjectStore('s');
-  },
-  (t, db) => {
-    const tx = db.transaction('s', 'readonly');
-    const store = tx.objectStore('s');
-
-    setTimeout(t.step_func(() => {
-      assert_throws_dom(
-        'TransactionInactiveError', () => { store.clear(); },
-        '"not active" check (TransactionInactiveError) should precede ' +
-        '"read only" check (ReadOnlyError)');
-      t.done();
-    }), 0);
-  },
-
-  'IDBObjectStore.clear exception order: ' +
-  'TransactionInactiveError vs. ReadOnlyError'
-);
-
-</script>
diff --git a/tests/wpt/tests/IndexedDB/idbobjectstore-delete-exception-order.any.js b/tests/wpt/tests/IndexedDB/idbobjectstore-delete-exception-order.any.js
new file mode 100644
index 00000000000..dc2baae3f67
--- /dev/null
+++ b/tests/wpt/tests/IndexedDB/idbobjectstore-delete-exception-order.any.js
@@ -0,0 +1,76 @@
+// META: global=window,worker
+// META: title=IndexedDB: IDBObjectStore delete() Exception Ordering
+// META: script=resources/support.js
+
+// Spec: https://w3c.github.io/IndexedDB/#dom-idbobjectstore-delete
+
+'use strict';
+
+indexeddb_test(
+    (t, db) => {
+      const store = db.createObjectStore('s');
+      const store2 = db.createObjectStore('s2');
+
+      db.deleteObjectStore('s2');
+
+      setTimeout(
+          t.step_func(() => {
+            assert_throws_dom(
+                'InvalidStateError',
+                () => {
+                  store2.delete('key');
+                },
+                '"has been deleted" check (InvalidStateError) should precede ' +
+                    '"not active" check (TransactionInactiveError)');
+            t.done();
+          }),
+          0);
+    },
+    (t, db) => {},
+    'IDBObjectStore.delete exception order: ' +
+        'InvalidStateError vs. TransactionInactiveError');
+
+indexeddb_test(
+    (t, db) => {
+      const store = db.createObjectStore('s');
+    },
+    (t, db) => {
+      const tx = db.transaction('s', 'readonly');
+      const store = tx.objectStore('s');
+
+      setTimeout(
+          t.step_func(() => {
+            assert_throws_dom(
+                'TransactionInactiveError',
+                () => {
+                  store.delete('key');
+                },
+                '"not active" check (TransactionInactiveError) should precede ' +
+                    '"read only" check (ReadOnlyError)');
+            t.done();
+          }),
+          0);
+    },
+    'IDBObjectStore.delete exception order: ' +
+        'TransactionInactiveError vs. ReadOnlyError');
+
+indexeddb_test(
+    (t, db) => {
+      const store = db.createObjectStore('s');
+    },
+    (t, db) => {
+      const tx = db.transaction('s', 'readonly');
+      const store = tx.objectStore('s');
+
+      assert_throws_dom(
+          'ReadOnlyError',
+          () => {
+            store.delete({});
+          },
+          '"read only" check (ReadOnlyError) should precede ' +
+              'key/data check (DataError)');
+
+      t.done();
+    },
+    'IDBObjectStore.delete exception order: ' +
+        'ReadOnlyError vs. DataError');
diff --git a/tests/wpt/tests/IndexedDB/idbobjectstore-delete-exception-order.html b/tests/wpt/tests/IndexedDB/idbobjectstore-delete-exception-order.html
deleted file mode 100644
index c33667f4b38..00000000000
--- a/tests/wpt/tests/IndexedDB/idbobjectstore-delete-exception-order.html
+++ /dev/null
@@ -1,69 +0,0 @@
-<!doctype html>
-<meta charset=utf-8>
-<title>IndexedDB: IDBObjectStore delete() Exception Ordering</title>
-<link rel="help" href="https://w3c.github.io/IndexedDB/#dom-idbobjectstore-delete">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="resources/support.js"></script>
-<script>
-
-indexeddb_test(
-  (t, db) => {
-    const store = db.createObjectStore('s');
-    const store2 = db.createObjectStore('s2');
-
-    db.deleteObjectStore('s2');
-
-    setTimeout(t.step_func(() => {
-      assert_throws_dom(
-        'InvalidStateError', () => { store2.delete('key'); },
-        '"has been deleted" check (InvalidStateError) should precede ' +
-        '"not active" check (TransactionInactiveError)');
-      t.done();
-    }), 0);
-  },
-  (t, db) => {},
-  'IDBObjectStore.delete exception order: ' +
-  'InvalidStateError vs. TransactionInactiveError'
-);
-
-indexeddb_test(
-  (t, db) => {
-    const store = db.createObjectStore('s');
-  },
-  (t, db) => {
-    const tx = db.transaction('s', 'readonly');
-    const store = tx.objectStore('s');
-
-    setTimeout(t.step_func(() => {
-      assert_throws_dom(
-        'TransactionInactiveError', () => { store.delete('key'); },
-        '"not active" check (TransactionInactiveError) should precede ' +
-        '"read only" check (ReadOnlyError)');
-      t.done();
-    }), 0);
-  },
-  'IDBObjectStore.delete exception order: ' +
-  'TransactionInactiveError vs. ReadOnlyError'
-);
-
-indexeddb_test(
-  (t, db) => {
-    const store = db.createObjectStore('s');
-  },
-  (t, db) => {
-    const tx = db.transaction('s', 'readonly');
-    const store = tx.objectStore('s');
-
-    assert_throws_dom(
-      'ReadOnlyError', () => { store.delete({}); },
-      '"read only" check (ReadOnlyError) should precede ' +
-      'key/data check (DataError)');
-
-    t.done();
-  },
-  'IDBObjectStore.delete exception order: ' +
-  'ReadOnlyError vs. DataError'
-);
-
-</script>
diff --git a/tests/wpt/tests/IndexedDB/idbobjectstore-deleteIndex-exception-order.any.js b/tests/wpt/tests/IndexedDB/idbobjectstore-deleteIndex-exception-order.any.js
new file mode 100644
index 00000000000..1575d4aaae1
--- /dev/null
+++ b/tests/wpt/tests/IndexedDB/idbobjectstore-deleteIndex-exception-order.any.js
@@ -0,0 +1,77 @@
+// META: global=window,worker
+// META: title=IndexedDB: IDBObjectStore deleteIndex() Exception Ordering
+// META: script=resources/support.js
+
+// Spec: https://w3c.github.io/IndexedDB/#dom-idbobjectstore-deleteindex
+
+'use strict';
+
+indexeddb_test(
+    (t, db) => {
+      const store = db.createObjectStore('s');
+      store.createIndex('i', 'keyPath');
+    },
+    (t, db) => {
+      const tx = db.transaction('s', 'readonly');
+      const store = tx.objectStore('s');
+
+      setTimeout(
+          t.step_func(() => {
+            assert_throws_dom(
+                'InvalidStateError',
+                () => {
+                  store.deleteIndex('i');
+                },
+                '"running an upgrade transaction" check (InvalidStateError) ' +
+                    'should precede "not active" check (TransactionInactiveError)');
+            t.done();
+          }),
+          0);
+    },
+    'IDBObjectStore.deleteIndex exception order: ' +
+        'InvalidStateError #1 vs. TransactionInactiveError');
+
+indexeddb_test(
+    (t, db) => {
+      const store = db.createObjectStore('s');
+      const index = store.createIndex('i', 'keyPath');
+
+      db.deleteObjectStore('s');
+
+      setTimeout(
+          t.step_func(() => {
+            assert_throws_dom(
+                'InvalidStateError',
+                () => {
+                  store.deleteIndex('i');
+                },
+                '"deleted" check (InvalidStateError) ' +
+                    'should precede "not active" check (TransactionInactiveError)');
+            t.done();
+          }),
+          0);
+    },
+    (t, db) => {},
+    'IDBObjectStore.deleteIndex exception order: ' +
+        'InvalidStateError #2 vs. TransactionInactiveError');
+
+indexeddb_test(
+    (t, db) => {
+      const store = db.createObjectStore('s');
+
+      setTimeout(
+          t.step_func(() => {
+            assert_throws_dom(
+                'TransactionInactiveError',
+                () => {
+                  store.deleteIndex('nope');
+                },
+                '"not active" check (TransactionInactiveError) should precede ' +
+                    '"name in store" check (NotFoundError)');
+            t.done();
+          }),
+          0);
+    },
+    (t, db) => {},
+    'IDBObjectStore.deleteIndex exception order: ' +
+        'TransactionInactiveError vs. NotFoundError');
diff --git a/tests/wpt/tests/IndexedDB/idbobjectstore-deleteIndex-exception-order.html b/tests/wpt/tests/IndexedDB/idbobjectstore-deleteIndex-exception-order.html
deleted file mode 100644
index 9e9bf1e138c..00000000000
--- a/tests/wpt/tests/IndexedDB/idbobjectstore-deleteIndex-exception-order.html
+++ /dev/null
@@ -1,68 +0,0 @@
-<!doctype html>
-<meta charset=utf-8>
-<title>IndexedDB: IDBObjectStore deleteIndex() Exception Ordering</title>
-<link rel="help" href="https://w3c.github.io/IndexedDB/#dom-idbobjectstore-deleteindex">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="resources/support.js"></script>
-<script>
-
-indexeddb_test(
-  (t, db) => {
-    const store = db.createObjectStore('s');
-    store.createIndex('i', 'keyPath');
-  },
-  (t, db) => {
-    const tx = db.transaction('s', 'readonly');
-    const store = tx.objectStore('s');
-
-    setTimeout(t.step_func(() => {
-      assert_throws_dom(
-        'InvalidStateError', () => { store.deleteIndex('i'); },
-        '"running an upgrade transaction" check (InvalidStateError) ' +
-        'should precede "not active" check (TransactionInactiveError)');
-      t.done();
-    }), 0);
-  },
-  'IDBObjectStore.deleteIndex exception order: ' +
-  'InvalidStateError #1 vs. TransactionInactiveError'
-);
-
-indexeddb_test(
-  (t, db) => {
-    const store = db.createObjectStore('s');
-    const index = store.createIndex('i', 'keyPath');
-
-    db.deleteObjectStore('s');
-
-    setTimeout(t.step_func(() => {
-      assert_throws_dom(
-        'InvalidStateError', () => { store.deleteIndex('i'); },
-        '"deleted" check (InvalidStateError) ' +
-        'should precede "not active" check (TransactionInactiveError)');
-      t.done();
-    }), 0);
-  },
-  (t, db) => {},
-  'IDBObjectStore.deleteIndex exception order: ' +
-  'InvalidStateError #2 vs. TransactionInactiveError'
-);
-
-indexeddb_test(
-  (t, db) => {
-    const store = db.createObjectStore('s');
-
-    setTimeout(t.step_func(() => {
-      assert_throws_dom(
-        'TransactionInactiveError', () => { store.deleteIndex('nope'); },
-        '"not active" check (TransactionInactiveError) should precede ' +
-        '"name in store" check (NotFoundError)');
-      t.done();
-    }), 0);
-  },
-  (t, db) => {},
-  'IDBObjectStore.deleteIndex exception order: ' +
-  'TransactionInactiveError vs. NotFoundError'
-);
-
-</script>
diff --git a/tests/wpt/tests/IndexedDB/idbobjectstore-query-exception-order.any.js b/tests/wpt/tests/IndexedDB/idbobjectstore-query-exception-order.any.js
new file mode 100644
index 00000000000..f2417ec73da
--- /dev/null
+++ b/tests/wpt/tests/IndexedDB/idbobjectstore-query-exception-order.any.js
@@ -0,0 +1,64 @@
+// META: global=window,worker
+// META: title=IndexedDB: IDBObjectStore query method Ordering
+// META: script=resources/support.js
+
+// Spec: https://w3c.github.io/IndexedDB/#dom-idbobjectstore-get
+// Spec: https://w3c.github.io/IndexedDB/#dom-idbobjectstore-getall
+// Spec: https://w3c.github.io/IndexedDB/#dom-idbobjectstore-getallkeys
+// Spec: https://w3c.github.io/IndexedDB/#dom-idbobjectstore-count
+// Spec: https://w3c.github.io/IndexedDB/#dom-idbobjectstore-opencursor
+// Spec: https://w3c.github.io/IndexedDB/#dom-idbobjectstore-openkeycursor
+
+'use strict';
+
+['get', 'getAll', 'getAllKeys', 'count', 'openCursor', 'openKeyCursor'].forEach(
+    method => {
+      indexeddb_test(
+          (t, db) => {
+            const store = db.createObjectStore('s');
+            const store2 = db.createObjectStore('s2');
+
+            db.deleteObjectStore('s2');
+
+            setTimeout(
+                t.step_func(() => {
+                  assert_throws_dom(
+                      'InvalidStateError',
+                      () => {
+                        store2[method]('key');
+                      },
+                      '"has been deleted" check (InvalidStateError) should precede ' +
+                          '"not active" check (TransactionInactiveError)');
+
+                  t.done();
+                }),
+                0);
+          },
+          (t, db) => {},
+          `IDBObjectStore.${method} exception order: ` +
+              'InvalidStateError vs. TransactionInactiveError');
+
+      indexeddb_test(
+          (t, db) => {
+            const store = db.createObjectStore('s');
+          },
+          (t, db) => {
+            const tx = db.transaction('s', 'readonly');
+            const store = tx.objectStore('s');
+
+            setTimeout(
+                t.step_func(() => {
+                  assert_throws_dom(
+                      'TransactionInactiveError',
+                      () => {
+                        store[method]({});
+                      },
+                      '"not active" check (TransactionInactiveError) should precede ' +
+                          'query check (DataError)');
+                  t.done();
+                }),
+                0);
+          },
+          `IDBObjectStore.${method} exception order: ` +
+              'TransactionInactiveError vs. DataError');
+    });
diff --git a/tests/wpt/tests/IndexedDB/idbobjectstore-query-exception-order.html b/tests/wpt/tests/IndexedDB/idbobjectstore-query-exception-order.html
deleted file mode 100644
index b28572619ef..00000000000
--- a/tests/wpt/tests/IndexedDB/idbobjectstore-query-exception-order.html
+++ /dev/null
@@ -1,65 +0,0 @@
-<!doctype html>
-<meta charset=utf-8>
-<title>IndexedDB: IDBObjectStore query method Ordering</title>
-<link rel="help" href="https://w3c.github.io/IndexedDB/#dom-idbobjectstore-get">
-<link rel="help" href="https://w3c.github.io/IndexedDB/#dom-idbobjectstore-getall">
-<link rel="help" href="https://w3c.github.io/IndexedDB/#dom-idbobjectstore-getallkeys">
-<link rel="help" href="https://w3c.github.io/IndexedDB/#dom-idbobjectstore-count">
-<link rel="help" href="https://w3c.github.io/IndexedDB/#dom-idbobjectstore-opencursor">
-<link rel="help" href="https://w3c.github.io/IndexedDB/#dom-idbobjectstore-openkeycursor">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="resources/support.js"></script>
-<script>
-
-['get',
- 'getAll',
- 'getAllKeys',
- 'count',
- 'openCursor',
- 'openKeyCursor'
-].forEach(method => {
-
-  indexeddb_test(
-    (t, db) => {
-      const store = db.createObjectStore('s');
-      const store2 = db.createObjectStore('s2');
-
-      db.deleteObjectStore('s2');
-
-      setTimeout(t.step_func(() => {
-        assert_throws_dom(
-          'InvalidStateError', () => { store2[method]('key'); },
-          '"has been deleted" check (InvalidStateError) should precede ' +
-          '"not active" check (TransactionInactiveError)');
-
-        t.done();
-      }), 0);
-    },
-    (t, db) => {},
-    `IDBObjectStore.${method} exception order: ` +
-    'InvalidStateError vs. TransactionInactiveError'
-  );
-
-  indexeddb_test(
-    (t, db) => {
-      const store = db.createObjectStore('s');
-    },
-    (t, db) => {
-      const tx = db.transaction('s', 'readonly');
-      const store = tx.objectStore('s');
-
-      setTimeout(t.step_func(() => {
-        assert_throws_dom(
-          'TransactionInactiveError', () => { store[method]({}); },
-          '"not active" check (TransactionInactiveError) should precede ' +
-          'query check (DataError)');
-        t.done();
-      }), 0);
-    },
-    `IDBObjectStore.${method} exception order: ` +
-    'TransactionInactiveError vs. DataError'
-  );
-});
-
-</script>
diff --git a/tests/wpt/tests/IndexedDB/idbrequest-onupgradeneeded.htm b/tests/wpt/tests/IndexedDB/idbrequest-onupgradeneeded.any.js
similarity index 68%
rename from tests/wpt/tests/IndexedDB/idbrequest-onupgradeneeded.htm
rename to tests/wpt/tests/IndexedDB/idbrequest-onupgradeneeded.any.js
index 73f22697f6e..1ceb784762d 100644
--- a/tests/wpt/tests/IndexedDB/idbrequest-onupgradeneeded.htm
+++ b/tests/wpt/tests/IndexedDB/idbrequest-onupgradeneeded.any.js
@@ -1,24 +1,21 @@
-<!doctype html>
-<meta charset=utf-8>
-<title>IndexedDB: UpgradeNeeded Tests</title>
-<meta name="help" href="https://w3c.github.io/IndexedDB/#commit-transaction">
-<meta name="help" href="https://w3c.github.io/IndexedDB/#dom-idbfactory-open">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script>
+// META: title=IDBRequest onupgradeneeded tests
+// META: global=window,worker
 
-function upgradeneeded_test(upgrade_func, success_func, error_func, description) {
+'use strict';
+
+function upgradeneeded_test(
+    upgrade_func, success_func, error_func, description) {
   async_test(function(t) {
-    var dbName = 'db' + self.location.pathname + '-' + description;
-    var delete_request = indexedDB.deleteDatabase(dbName);
+    let dbName = 'db' + self.location.pathname + '-' + description;
+    let delete_request = indexedDB.deleteDatabase(dbName);
     delete_request.onerror = t.unreached_func('deleteDatabase should not fail');
     delete_request.onsuccess = t.step_func(function() {
-      var open_request = indexedDB.open(dbName);
+      let open_request = indexedDB.open(dbName);
 
       open_request.onupgradeneeded = t.step_func(function() {
         t.add_cleanup(function() {
           if (open_request.result) {
-            open_request.result.close(),
+            open_request.result.close();
             indexedDB.deleteDatabase(dbName);
           }
         });
@@ -28,7 +25,9 @@ function upgradeneeded_test(upgrade_func, success_func, error_func, description)
         success_func(t, open_request);
       });
       if (error_func) {
-        open_request.onerror = function() { error_func(t, open_request); };
+        open_request.onerror = function() {
+          error_func(t, open_request);
+        };
       } else {
         open_request.onerror = t.unreached_func('open failed');
       }
@@ -37,12 +36,12 @@ function upgradeneeded_test(upgrade_func, success_func, error_func, description)
 }
 
 (function() {
-  var order = [];
-  upgradeneeded_test(
+let order = [];
+upgradeneeded_test(
     function upgrade(t, request) {
       order.push('Upgrade');
-      var db = request.result;
-      var deleteRequest = indexedDB.deleteDatabase(db.name);
+      let db = request.result;
+      let deleteRequest = indexedDB.deleteDatabase(db.name);
       deleteRequest.onsuccess = t.step_func(function() {
         assert_array_equals(order, ['Upgrade', 'Open Success']);
         t.done();
@@ -50,24 +49,22 @@ function upgradeneeded_test(upgrade_func, success_func, error_func, description)
       deleteRequest.onerror = t.unreached_func('delete failed');
     },
     function success(t, request) {
-      var db = request.result;
+      let db = request.result;
       db.close();
       order.push('Open Success');
     },
-    null,
-    'indexedDB.delete called from upgradeneeded handler'
-  );
+    null, 'indexedDB.delete called from upgradeneeded handler');
 }());
 
 (function() {
-  var order = [];
-  upgradeneeded_test(
+let order = [];
+upgradeneeded_test(
     function upgrade(t, request) {
       order.push('Upgrade');
       request.transaction.abort();
       order.push('Upgrade Transaction Aborted');
-      var db = request.result;
-      var deleteRequest = indexedDB.deleteDatabase(db.name);
+      let db = request.result;
+      let deleteRequest = indexedDB.deleteDatabase(db.name);
       deleteRequest.onsuccess = t.step_func(function() {
         assert_array_equals(
             order, ['Upgrade', 'Upgrade Transaction Aborted', 'Open Error']);
@@ -82,17 +79,16 @@ function upgradeneeded_test(upgrade_func, success_func, error_func, description)
       assert_array_equals(order, ['Upgrade', 'Upgrade Transaction Aborted']);
       order.push('Open Error');
     },
-    'Abort transaction before deleting database in upgradeneeded handler'
-  );
+    'Abort transaction before deleting database in upgradeneeded handler');
 }());
 
 (function() {
-  var order = [];
-  upgradeneeded_test(
+let order = [];
+upgradeneeded_test(
     function upgrade(t, request) {
       order.push('Upgrade');
-      var db = request.result;
-      var deleteRequest = indexedDB.deleteDatabase(db.name);
+      let db = request.result;
+      let deleteRequest = indexedDB.deleteDatabase(db.name);
       request.transaction.abort();
       order.push('Upgrade Transaction Aborted');
       deleteRequest.onsuccess = t.step_func(function() {
@@ -109,21 +105,20 @@ function upgradeneeded_test(upgrade_func, success_func, error_func, description)
       assert_array_equals(order, ['Upgrade', 'Upgrade Transaction Aborted']);
       order.push('Open Error');
     },
-    'Abort transaction after deleting database in upgradeneeded event handler'
-  );
+    'Abort transaction after deleting database in upgradeneeded event handler');
 }());
 
 (function() {
-  var order = [];
-  upgradeneeded_test(
+let order = [];
+upgradeneeded_test(
     function upgrade(t, request) {
       order.push('Upgrade');
-      var db = request.result;
+      let db = request.result;
       db.createObjectStore('store');
       request.transaction.oncomplete = t.step_func(function() {
         order.push('Upgrade transaction complete');
-        var txn = db.transaction('store', 'readwrite');
-        var store = txn.objectStore('store');
+        let txn = db.transaction('store', 'readwrite');
+        let store = txn.objectStore('store');
         store.put('value', 'key');
         txn.oncomplete = t.step_func(function() {
           assert_array_equals(
@@ -138,9 +133,5 @@ function upgradeneeded_test(upgrade_func, success_func, error_func, description)
     function success(t, request) {
       order.push('Open Success');
     },
-    null,
-    'transaction oncomplete ordering relative to open request onsuccess'
-  );
+    null, 'transaction oncomplete ordering relative to open request onsuccess');
 }());
-
-</script>
diff --git a/tests/wpt/tests/IndexedDB/idbrequest_error.any.js b/tests/wpt/tests/IndexedDB/idbrequest_error.any.js
new file mode 100644
index 00000000000..2614db60fb2
--- /dev/null
+++ b/tests/wpt/tests/IndexedDB/idbrequest_error.any.js
@@ -0,0 +1,24 @@
+// META: title=IDBRequest.error
+// META: global=window,worker
+// META: script=resources/support.js
+
+'use strict';
+
+async_test(t => {
+  let open = createdb(t);
+  open.onupgradeneeded = t.step_func(e => {
+    let db = e.target.result;
+    db.createObjectStore('store');
+  });
+  open.onsuccess = t.step_func(e => {
+    let db = e.target.result;
+    let request =
+        db.transaction('store', 'readonly').objectStore('store').get(0);
+
+    assert_equals(request.readyState, 'pending');
+    assert_throws_dom(
+        'InvalidStateError', () => request.error,
+        'IDBRequest.error should throw if request is pending');
+    t.done();
+  });
+}, 'IDBRequest.error throws if ready state is pending');
diff --git a/tests/wpt/tests/IndexedDB/idbrequest_error.html b/tests/wpt/tests/IndexedDB/idbrequest_error.html
deleted file mode 100644
index 56d2ddb0083..00000000000
--- a/tests/wpt/tests/IndexedDB/idbrequest_error.html
+++ /dev/null
@@ -1,25 +0,0 @@
-<!DOCTYPE html>
-<meta charset=utf-8>
-<title>IDBRequest.error</title>
-<script src=/resources/testharness.js></script>
-<script src=/resources/testharnessreport.js></script>
-<script src=resources/support.js></script>
-
-<script>
-async_test(t => {
-  var open = createdb(t);
-  open.onupgradeneeded = t.step_func(e => {
-    var db = e.target.result;
-    db.createObjectStore('store');
-  });
-  open.onsuccess = t.step_func(e => {
-    var db = e.target.result;
-    var request = db.transaction('store', 'readonly').objectStore('store').get(0);
-
-    assert_equals(request.readyState, 'pending');
-    assert_throws_dom('InvalidStateError', () => request.error,
-                      'IDBRequest.error should throw if request is pending');
-    t.done();
-  });
-}, 'IDBRequest.error throws if ready state is pending');
-</script>
diff --git a/tests/wpt/tests/IndexedDB/idbrequest_result.any.js b/tests/wpt/tests/IndexedDB/idbrequest_result.any.js
new file mode 100644
index 00000000000..035dd54d563
--- /dev/null
+++ b/tests/wpt/tests/IndexedDB/idbrequest_result.any.js
@@ -0,0 +1,24 @@
+// META: title=IDBRequest.result
+// META: global=window,worker
+// META: script=resources/support.js
+
+'use strict';
+
+async_test(t => {
+  let open = createdb(t);
+  open.onupgradeneeded = t.step_func(e => {
+    let db = e.target.result;
+    db.createObjectStore('store');
+  });
+  open.onsuccess = t.step_func(e => {
+    let db = e.target.result;
+    let request =
+        db.transaction('store', 'readonly').objectStore('store').get(0);
+
+    assert_equals(request.readyState, 'pending');
+    assert_throws_dom(
+        'InvalidStateError', () => request.result,
+        'IDBRequest.result should throw if request is pending');
+    t.done();
+  });
+}, 'IDBRequest.result throws if ready state is pending');
diff --git a/tests/wpt/tests/IndexedDB/idbrequest_result.html b/tests/wpt/tests/IndexedDB/idbrequest_result.html
deleted file mode 100644
index 6ec81cc29b8..00000000000
--- a/tests/wpt/tests/IndexedDB/idbrequest_result.html
+++ /dev/null
@@ -1,25 +0,0 @@
-<!DOCTYPE html>
-<meta charset=utf-8>
-<title>IDBRequest.result</title>
-<script src=/resources/testharness.js></script>
-<script src=/resources/testharnessreport.js></script>
-<script src=resources/support.js></script>
-
-<script>
-async_test(t => {
-  var open = createdb(t);
-  open.onupgradeneeded = t.step_func(e => {
-    var db = e.target.result;
-    db.createObjectStore('store');
-  });
-  open.onsuccess = t.step_func(e => {
-    var db = e.target.result;
-    var request = db.transaction('store', 'readonly').objectStore('store').get(0);
-
-    assert_equals(request.readyState, 'pending');
-    assert_throws_dom('InvalidStateError', () => request.result,
-                      'IDBRequest.result should throw if request is pending');
-    t.done();
-  });
-}, 'IDBRequest.result throws if ready state is pending');
-</script>
diff --git a/tests/wpt/tests/IndexedDB/idbtransaction-db-SameObject.any.js b/tests/wpt/tests/IndexedDB/idbtransaction-db-SameObject.any.js
new file mode 100644
index 00000000000..52deb19da50
--- /dev/null
+++ b/tests/wpt/tests/IndexedDB/idbtransaction-db-SameObject.any.js
@@ -0,0 +1,21 @@
+// META: title=IndexedDB: Verify [SameObject] behavior of IDBTransaction's db attribute
+// META: global=window,worker
+// META: script=resources/support.js
+
+// Spec: https://w3c.github.io/IndexedDB/#dom-idbtransaction-db
+
+'use strict';
+
+indexeddb_test(
+    (t, db, tx) => {
+      const store = db.createObjectStore('store');
+      assert_equals(
+          tx.db, tx.db, 'Attribute should yield the same object each time');
+    },
+    (t, db) => {
+      const tx = db.transaction('store', 'readonly');
+      assert_equals(
+          tx.db, tx.db, 'Attribute should yield the same object each time');
+      t.done();
+    },
+    'IDBTransaction.db [SameObject]');
diff --git a/tests/wpt/tests/IndexedDB/idbtransaction-db-SameObject.html b/tests/wpt/tests/IndexedDB/idbtransaction-db-SameObject.html
deleted file mode 100644
index 52e0b0f6e60..00000000000
--- a/tests/wpt/tests/IndexedDB/idbtransaction-db-SameObject.html
+++ /dev/null
@@ -1,24 +0,0 @@
-<!doctype html>
-<meta charset=utf-8>
-<title>IndexedDB: Verify [SameObject] behavior of IDBTransaction's db attribute</title>
-<meta name="help" href="https://w3c.github.io/IndexedDB/#dom-idbtransaction-db">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="resources/support.js"></script>
-<script>
-
-indexeddb_test(
-  (t, db, tx) => {
-    const store = db.createObjectStore('store');
-    assert_equals(tx.db, tx.db,
-                  'Attribute should yield the same object each time');
-  },
-  (t, db) => {
-    const tx = db.transaction('store', 'readonly');
-    assert_equals(tx.db, tx.db,
-                  'Attribute should yield the same object each time');
-    t.done();
-  },
-  'IDBTransaction.db [SameObject]'
-);
-</script>
diff --git a/tests/wpt/tests/IndexedDB/idbtransaction-oncomplete.any.js b/tests/wpt/tests/IndexedDB/idbtransaction-oncomplete.any.js
new file mode 100644
index 00000000000..001267df969
--- /dev/null
+++ b/tests/wpt/tests/IndexedDB/idbtransaction-oncomplete.any.js
@@ -0,0 +1,44 @@
+// META: title=IDBTransaction - complete event
+// META: global=window,worker
+// META: script=resources/support.js
+
+'use strict';
+
+async_test(t => {
+  let db;
+  let store;
+  let open_rq = createdb(t);
+  let stages = [];
+
+  open_rq.onupgradeneeded = function(e) {
+    stages.push('upgradeneeded');
+
+    db = e.target.result;
+    store = db.createObjectStore('store');
+
+    e.target.transaction.oncomplete = function() {
+      stages.push('complete');
+    };
+  };
+
+  open_rq.onsuccess = function(e) {
+    stages.push('success');
+
+    let tx = db.transaction('store', 'readonly');
+    store = tx.objectStore('store');
+    store.openCursor().onsuccess =
+        function(e) {
+      stages.push('opencursor');
+    }
+
+    db.transaction('store', 'readonly')
+        .objectStore('store')
+        .count()
+        .onsuccess = t.step_func(function(e) {
+      assert_array_equals(stages, [
+        'upgradeneeded', 'complete', 'success', 'opencursor'
+      ]);
+      t.done();
+    });
+  }
+});
diff --git a/tests/wpt/tests/IndexedDB/idbtransaction-oncomplete.htm b/tests/wpt/tests/IndexedDB/idbtransaction-oncomplete.htm
deleted file mode 100644
index 3ee4ee51ac1..00000000000
--- a/tests/wpt/tests/IndexedDB/idbtransaction-oncomplete.htm
+++ /dev/null
@@ -1,53 +0,0 @@
-<!DOCTYPE html>
-<title>IDBTransaction - complete event</title>
-<link rel="author" href="mailto:odinho@opera.com" title="Odin Hørthe Omdal">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="resources/support.js"></script>
-
-<script>
-    var db, store,
-      t = async_test(),
-      open_rq = createdb(t),
-      stages = [];
-
-    open_rq.onupgradeneeded = function(e) {
-        stages.push("upgradeneeded");
-
-        db = e.target.result;
-        store = db.createObjectStore('store');
-
-        e.target.transaction.oncomplete = function() {
-            stages.push("complete");
-        };
-    };
-
-    open_rq.onsuccess = function(e) {
-        stages.push("success");
-
-        // Making a totally new transaction to check
-        db.transaction('store', 'readonly').objectStore('store').count().onsuccess = t.step_func(function(e) {
-            assert_array_equals(stages, [ "upgradeneeded",
-                                          "complete",
-                                          "success" ]);
-            t.done();
-        });
-        // XXX: Make one with real transactions, not only open() versionchange one
-
-        /*db.transaction.objectStore('store').openCursor().onsuccess = function(e) {
-            stages.push("opencursor1");
-        }
-
-        store.openCursor().onsuccess = function(e) {
-            stages.push("opencursor2");
-        }
-
-        e.target.transaction.objectStore('store').openCursor().onsuccess = function(e) {
-            stages.push("opencursor3");
-        }
-        */
-    }
-
-</script>
-
-<div id="log"></div>
diff --git a/tests/wpt/tests/IndexedDB/idbtransaction.any.js b/tests/wpt/tests/IndexedDB/idbtransaction.any.js
new file mode 100644
index 00000000000..8dfac5b6c06
--- /dev/null
+++ b/tests/wpt/tests/IndexedDB/idbtransaction.any.js
@@ -0,0 +1,65 @@
+// META: title=IDBTransaction
+// META: global=window,worker
+// META: script=resources/support.js
+
+'use strict';
+
+async_test(function(t) {
+  let dbname = 'idbtransaction-' + location + t.name;
+  indexedDB.deleteDatabase(dbname);
+  let open_rq = indexedDB.open(dbname);
+
+  open_rq.onblocked = t.unreached_func('open_rq.onblocked');
+  open_rq.onerror = t.unreached_func('open_rq.onerror');
+
+  open_rq.onupgradeneeded = t.step_func(function(e) {
+    t.add_cleanup(function() {
+      open_rq.onerror = function(e) {
+        e.preventDefault();
+      };
+      open_rq.result.close();
+      indexedDB.deleteDatabase(open_rq.result.name);
+    });
+
+    assert_equals(
+        e.target, open_rq, 'e.target is reusing the same IDBOpenDBRequest');
+    assert_equals(
+        e.target.transaction, open_rq.transaction,
+        'IDBOpenDBRequest.transaction');
+
+    assert_true(
+        e.target.transaction instanceof IDBTransaction,
+        'transaction instanceof IDBTransaction');
+    t.done();
+  });
+}, 'IDBTransaction - request gotten by the handler');
+
+async_test(function(t) {
+  let dbname = 'idbtransaction-' + location + t.name;
+  indexedDB.deleteDatabase(dbname);
+  let open_rq = indexedDB.open(dbname);
+
+  assert_equals(open_rq.transaction, null, 'IDBOpenDBRequest.transaction');
+  assert_equals(open_rq.source, null, 'IDBOpenDBRequest.source');
+  assert_equals(open_rq.readyState, 'pending', 'IDBOpenDBRequest.readyState');
+
+  assert_true(
+      open_rq instanceof IDBOpenDBRequest,
+      'open_rq instanceof IDBOpenDBRequest');
+  assert_equals(
+      open_rq + '', '[object IDBOpenDBRequest]', 'IDBOpenDBRequest (open_rq)');
+
+  open_rq.onblocked = t.unreached_func('open_rq.onblocked');
+  open_rq.onerror = t.unreached_func('open_rq.onerror');
+
+  open_rq.onupgradeneeded = t.step_func(function() {
+    t.add_cleanup(function() {
+      open_rq.onerror = function(e) {
+        e.preventDefault();
+      };
+      open_rq.result.close();
+      indexedDB.deleteDatabase(open_rq.result.name);
+    });
+    t.done();
+  });
+}, 'IDBTransaction - request returned by open()');
diff --git a/tests/wpt/tests/IndexedDB/idbtransaction.htm b/tests/wpt/tests/IndexedDB/idbtransaction.htm
deleted file mode 100644
index d08e170eb6e..00000000000
--- a/tests/wpt/tests/IndexedDB/idbtransaction.htm
+++ /dev/null
@@ -1,63 +0,0 @@
-<!DOCTYPE html>
-<title>IDBTransaction</title>
-<link rel="author" href="mailto:odinho@opera.com" title="Odin Hørthe Omdal">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="resources/support.js"></script>
-
-<script>
-async_test(function(t) {
-  var dbname = "idbtransaction-" + document.location + t.name;
-  indexedDB.deleteDatabase(dbname);
-  var open_rq = indexedDB.open(dbname);
-
-  open_rq.onblocked = t.unreached_func('open_rq.onblocked');
-  open_rq.onerror = t.unreached_func('open_rq.onerror');
-
-  open_rq.onupgradeneeded = t.step_func(function(e) {
-    t.add_cleanup(function() {
-      open_rq.onerror = function(e) {
-        e.preventDefault();
-      };
-      open_rq.result.close();
-      indexedDB.deleteDatabase(open_rq.result.name);
-    });
-
-    assert_equals(e.target, open_rq, "e.target is reusing the same IDBOpenDBRequest");
-    assert_equals(e.target.transaction, open_rq.transaction, "IDBOpenDBRequest.transaction");
-
-    assert_true(e.target.transaction instanceof IDBTransaction, "transaction instanceof IDBTransaction");
-    t.done();
-  });
-
-}, document.title + " - request gotten by the handler");
-
-async_test(function(t) {
-  var dbname = "idbtransaction-" + document.location + t.name;
-  indexedDB.deleteDatabase(dbname);
-  var open_rq = indexedDB.open(dbname);
-
-  assert_equals(open_rq.transaction, null, "IDBOpenDBRequest.transaction");
-  assert_equals(open_rq.source, null, "IDBOpenDBRequest.source");
-  assert_equals(open_rq.readyState, "pending", "IDBOpenDBRequest.readyState");
-
-  assert_true(open_rq instanceof IDBOpenDBRequest, "open_rq instanceof IDBOpenDBRequest");
-  assert_equals(open_rq + "", "[object IDBOpenDBRequest]", "IDBOpenDBRequest (open_rq)");
-
-  open_rq.onblocked = t.unreached_func('open_rq.onblocked');
-  open_rq.onerror = t.unreached_func('open_rq.onerror');
-
-  open_rq.onupgradeneeded = t.step_func(function() {
-    t.add_cleanup(function() {
-      open_rq.onerror = function(e) {
-        e.preventDefault();
-      };
-      open_rq.result.close();
-      indexedDB.deleteDatabase(open_rq.result.name);
-    });
-    t.done();
-  });
-
-}, document.title + " - request returned by open()");
-
-</script>
diff --git a/tests/wpt/tests/IndexedDB/idbtransaction_abort.any.js b/tests/wpt/tests/IndexedDB/idbtransaction_abort.any.js
new file mode 100644
index 00000000000..7bc27dc3d69
--- /dev/null
+++ b/tests/wpt/tests/IndexedDB/idbtransaction_abort.any.js
@@ -0,0 +1,37 @@
+// META: title=IDBTransaction - abort
+// META: global=window,worker
+// META: script=resources/support.js
+
+'use strict';
+
+async_test(t => {
+  let db;
+  let aborted;
+  const record = {indexedProperty: 'bar'};
+
+  let open_rq = createdb(t);
+  open_rq.onupgradeneeded = function(e) {
+    db = e.target.result;
+    let txn = e.target.transaction;
+    let objStore = db.createObjectStore('store');
+
+    objStore.add(record, 1);
+    objStore.add(record, 2);
+    let index =
+        objStore.createIndex('index', 'indexedProperty', {unique: true});
+
+    assert_true(index instanceof IDBIndex, 'IDBIndex');
+
+    e.target.transaction.onabort = t.step_func(function(e) {
+      aborted = true;
+      assert_equals(e.type, 'abort', 'event type');
+    });
+
+    db.onabort = function(e) {
+      assert_true(aborted, 'transaction.abort event has fired');
+      t.done();
+    };
+
+    e.target.transaction.oncomplete = fail(t, 'got complete, expected abort');
+  };
+});
diff --git a/tests/wpt/tests/IndexedDB/idbtransaction_abort.htm b/tests/wpt/tests/IndexedDB/idbtransaction_abort.htm
deleted file mode 100644
index 3c64352b08d..00000000000
--- a/tests/wpt/tests/IndexedDB/idbtransaction_abort.htm
+++ /dev/null
@@ -1,41 +0,0 @@
-<!DOCTYPE html>
-<meta charset=utf-8>
-<title>IDBTransaction - abort</title>
-<link rel="author" href="mailto:odinho@opera.com" title="Odin Hørthe Omdal">
-<script src=/resources/testharness.js></script>
-<script src=/resources/testharnessreport.js></script>
-<script src=resources/support.js></script>
-
-<script>
-    var db, aborted,
-      t = async_test(),
-      record = { indexedProperty: "bar" };
-
-    var open_rq = createdb(t);
-    open_rq.onupgradeneeded = function(e) {
-        db = e.target.result;
-        var txn = e.target.transaction,
-          objStore = db.createObjectStore("store");
-
-        objStore.add(record, 1);
-        objStore.add(record, 2);
-        var index = objStore.createIndex("index", "indexedProperty", { unique: true });
-
-        assert_true(index instanceof IDBIndex, "IDBIndex");
-
-        e.target.transaction.onabort = t.step_func(function(e) {
-            aborted = true;
-            assert_equals(e.type, "abort", "event type");
-        });
-
-        db.onabort = function(e) {
-            assert_true(aborted, "transaction.abort event has fired");
-            t.done();
-        };
-
-        e.target.transaction.oncomplete = fail(t, "got complete, expected abort");
-    };
-
-</script>
-
-<div id=log></div>
diff --git a/tests/wpt/tests/IndexedDB/idbtransaction_objectStoreNames.any.js b/tests/wpt/tests/IndexedDB/idbtransaction_objectStoreNames.any.js
new file mode 100644
index 00000000000..23be81823a8
--- /dev/null
+++ b/tests/wpt/tests/IndexedDB/idbtransaction_objectStoreNames.any.js
@@ -0,0 +1,192 @@
+// META: title=IndexedDB: IDBTransaction.objectStoreNames attribute
+// META: global=window,worker
+// META: script=resources/support.js
+
+'use strict';
+
+function with_stores_test(store_names, open_func, description) {
+  indexeddb_test(function(t, db, tx) {
+    store_names.forEach(function(name) {
+      db.createObjectStore(name);
+    });
+  }, open_func, description);
+}
+
+indexeddb_test(
+    function(t, db, tx) {
+      assert_array_equals(
+          tx.objectStoreNames, [],
+          'transaction objectStoreNames should be empty');
+      assert_array_equals(
+          db.objectStoreNames, tx.objectStoreNames,
+          'connection and transacton objectStoreNames should match');
+
+      db.createObjectStore('s1');
+      assert_array_equals(
+          tx.objectStoreNames, ['s1'],
+          'transaction objectStoreNames should have new store');
+      assert_array_equals(
+          db.objectStoreNames, tx.objectStoreNames,
+          'connection and transacton objectStoreNames should match');
+
+      db.createObjectStore('s3');
+      assert_array_equals(
+          tx.objectStoreNames, ['s1', 's3'],
+          'transaction objectStoreNames should have new store');
+      assert_array_equals(
+          db.objectStoreNames, tx.objectStoreNames,
+          'connection and transacton objectStoreNames should match');
+
+      db.createObjectStore('s2');
+      assert_array_equals(
+          tx.objectStoreNames, ['s1', 's2', 's3'],
+          'transaction objectStoreNames should be sorted');
+      assert_array_equals(
+          db.objectStoreNames, tx.objectStoreNames,
+          'connection and transacton objectStoreNames should match');
+
+      db.deleteObjectStore('s1');
+      assert_array_equals(
+          tx.objectStoreNames, ['s2', 's3'],
+          'transaction objectStoreNames should be updated after delete');
+      assert_array_equals(
+          db.objectStoreNames, tx.objectStoreNames,
+          'connection and transacton objectStoreNames should match');
+    },
+    function(t, db) {
+      t.done();
+    },
+    'IDBTransaction.objectStoreNames - during upgrade transaction');
+
+(function() {
+let saved_tx;
+indexeddb_test(
+    function(t, db, tx) {
+      saved_tx = tx;
+      db.createObjectStore('s2');
+      db.createObjectStore('s3');
+    },
+    function(t, db) {
+      db.close();
+      let open2 = indexedDB.open(db.name, db.version + 1);
+      open2.onerror = t.unreached_func('open should succeed');
+      open2.onupgradeneeded = t.step_func(function() {
+        let db2 = open2.result;
+        let tx2 = open2.transaction;
+        assert_array_equals(
+            tx2.objectStoreNames, ['s2', 's3'],
+            'transaction should have previous stores in scope');
+        assert_array_equals(
+            db2.objectStoreNames, tx2.objectStoreNames,
+            'connection and transacton objectStoreNames should match');
+
+        db2.createObjectStore('s4');
+        assert_array_equals(
+            tx2.objectStoreNames, ['s2', 's3', 's4'],
+            'transaction should have new store in scope');
+        assert_array_equals(
+            db2.objectStoreNames, tx2.objectStoreNames,
+            'connection and transacton objectStoreNames should match');
+
+        assert_array_equals(
+            saved_tx.objectStoreNames, ['s2', 's3'],
+            'previous transaction objectStoreNames should be unchanged');
+        assert_array_equals(
+            db.objectStoreNames, saved_tx.objectStoreNames,
+            'connection and transaction objectStoreNames should match');
+        db2.close();
+        t.done();
+      });
+    },
+    'IDBTransaction.objectStoreNames - value after close');
+}());
+
+with_stores_test(['s1', 's2'], function(t, db) {
+  assert_array_equals(
+      db.transaction('s1', 'readonly').objectStoreNames, ['s1'],
+      'transaction should have one store in scope');
+  assert_array_equals(
+      db.transaction(['s1', 's2']).objectStoreNames, ['s1', 's2'],
+      'transaction should have two stores in scope');
+  t.done();
+}, 'IDBTransaction.objectStoreNames - transaction scope');
+
+with_stores_test(['s1', 's2'], function(t, db) {
+  let tx = db.transaction(['s1', 's2'], 'readwrite');
+  tx.objectStore('s1').put(0, 0);
+  tx.onabort = t.unreached_func('transaction should complete');
+  tx.oncomplete = t.step_func(function() {
+    assert_array_equals(
+        tx.objectStoreNames, ['s1', 's2'],
+        'objectStoreNames should return scope after transaction commits');
+    t.done();
+  });
+}, 'IDBTransaction.objectStoreNames - value after commit');
+
+with_stores_test(['s1', 's2'], function(t, db) {
+  let tx = db.transaction(['s1', 's2'], 'readwrite');
+  tx.objectStore('s1').put(0, 0);
+  tx.objectStore('s1').add(0, 0);
+  tx.oncomplete = t.unreached_func('transaction should abort');
+  tx.onabort = t.step_func(function() {
+    assert_array_equals(
+        tx.objectStoreNames, ['s1', 's2'],
+        'objectStoreNames should return scope after transaction aborts');
+    t.done();
+  });
+}, 'IDBTransaction.objectStoreNames - value after abort');
+
+with_stores_test(['s1', 's2', 's3'], function(t, db) {
+  assert_array_equals(
+      db.transaction(['s3', 's2', 's1']).objectStoreNames, ['s1', 's2', 's3'],
+      'transaction objectStoreNames should be sorted');
+  t.done();
+}, 'IDBTransaction.objectStoreNames - sorting');
+
+with_stores_test(['s1', 's2'], function(t, db) {
+  assert_array_equals(
+      db.transaction(['s2', 's1', 's2']).objectStoreNames, ['s1', 's2'],
+      'transaction objectStoreNames should not have duplicates');
+  t.done();
+}, 'IDBTransaction.objectStoreNames - no duplicates');
+
+let unusual_names = [
+  '',  // empty string
+
+  '\x00',  // U+0000 NULL
+  '\xFF',  // U+00FF LATIN SMALL LETTER Y WITH DIAERESIS
+
+  '1',    // basic ASCII
+  '12',   // basic ASCII
+  '123',  // basic ASCII
+  'abc',  // basic ASCII
+  'ABC',  // basic ASCII
+
+  '\xA2',          // U+00A2 CENT SIGN
+  '\u6C34',        // U+6C34 CJK UNIFIED IDEOGRAPH (water)
+  '\uD834\uDD1E',  // U+1D11E MUSICAL SYMBOL G-CLEF (UTF-16 surrogate pair)
+  '\uFFFD',        // U+FFFD REPLACEMENT CHARACTER
+
+  '\uD800',  // UTF-16 surrogate lead
+  '\uDC00',  // UTF-16 surrogate trail
+];
+unusual_names.sort();
+
+indexeddb_test(
+    function(t, db, tx) {
+      unusual_names.slice().reverse().forEach(function(name) {
+        db.createObjectStore(name);
+      });
+      assert_array_equals(
+          tx.objectStoreNames, unusual_names,
+          'transaction should have names sorted');
+    },
+    function(t, db) {
+      let tx =
+          db.transaction(unusual_names.slice().reverse().concat(unusual_names));
+      assert_array_equals(
+          tx.objectStoreNames, unusual_names,
+          'transaction should have names sorted with no duplicates');
+      t.done();
+    },
+    'IDBTransaction.objectStoreNames - unusual names');
diff --git a/tests/wpt/tests/IndexedDB/idbtransaction_objectStoreNames.html b/tests/wpt/tests/IndexedDB/idbtransaction_objectStoreNames.html
deleted file mode 100644
index e9b725e0395..00000000000
--- a/tests/wpt/tests/IndexedDB/idbtransaction_objectStoreNames.html
+++ /dev/null
@@ -1,165 +0,0 @@
-<!DOCTYPE html>
-<title>IndexedDB: IDBTransaction.objectStoreNames attribute</title>
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="resources/support.js"></script>
-<script>
-
-function with_stores_test(store_names, open_func, description) {
-    indexeddb_test(function(t, db, tx) {
-        store_names.forEach(function(name) {
-            db.createObjectStore(name);
-        });
-    }, open_func, description);
-}
-
-indexeddb_test(function(t, db, tx) {
-    assert_array_equals(tx.objectStoreNames, [],
-        'transaction objectStoreNames should be empty');
-    assert_array_equals(db.objectStoreNames, tx.objectStoreNames,
-        'connection and transacton objectStoreNames should match');
-
-    db.createObjectStore('s1');
-    assert_array_equals(tx.objectStoreNames, ['s1'],
-        'transaction objectStoreNames should have new store');
-    assert_array_equals(db.objectStoreNames, tx.objectStoreNames,
-        'connection and transacton objectStoreNames should match');
-
-    db.createObjectStore('s3');
-    assert_array_equals(tx.objectStoreNames, ['s1', 's3'],
-        'transaction objectStoreNames should have new store');
-    assert_array_equals(db.objectStoreNames, tx.objectStoreNames,
-        'connection and transacton objectStoreNames should match');
-
-    db.createObjectStore('s2');
-    assert_array_equals(tx.objectStoreNames, ['s1', 's2', 's3'],
-        'transaction objectStoreNames should be sorted');
-    assert_array_equals(db.objectStoreNames, tx.objectStoreNames,
-        'connection and transacton objectStoreNames should match');
-
-    db.deleteObjectStore('s1');
-    assert_array_equals(tx.objectStoreNames, ['s2', 's3'],
-        'transaction objectStoreNames should be updated after delete');
-    assert_array_equals(db.objectStoreNames, tx.objectStoreNames,
-        'connection and transacton objectStoreNames should match');
-}, function(t, db) {
-    t.done();
-}, 'IDBTransaction.objectStoreNames - during upgrade transaction');
-
-(function() {
-    var saved_tx;
-    indexeddb_test(function(t, db, tx) {
-        saved_tx = tx;
-        db.createObjectStore('s2');
-        db.createObjectStore('s3');
-    }, function(t, db) {
-        db.close();
-        var open2 = indexedDB.open(db.name, db.version + 1);
-        open2.onerror = t.unreached_func('open should succeed');
-        open2.onupgradeneeded = t.step_func(function() {
-            var db2 = open2.result;
-            var tx2 = open2.transaction;
-            assert_array_equals(tx2.objectStoreNames, ['s2', 's3'],
-                'transaction should have previous stores in scope');
-            assert_array_equals(db2.objectStoreNames, tx2.objectStoreNames,
-                'connection and transacton objectStoreNames should match');
-
-            db2.createObjectStore('s4');
-            assert_array_equals(tx2.objectStoreNames, ['s2', 's3', 's4'],
-                'transaction should have new store in scope');
-            assert_array_equals(db2.objectStoreNames, tx2.objectStoreNames,
-                'connection and transacton objectStoreNames should match');
-
-            assert_array_equals(saved_tx.objectStoreNames, ['s2', 's3'],
-                'previous transaction objectStoreNames should be unchanged');
-            assert_array_equals(db.objectStoreNames, saved_tx.objectStoreNames,
-                                'connection and transaction objectStoreNames should match');
-            db2.close();
-            t.done();
-        });
-    }, 'IDBTransaction.objectStoreNames - value after close');
-}());
-
-with_stores_test(['s1', 's2'], function(t, db) {
-    assert_array_equals(db.transaction('s1', 'readonly').objectStoreNames, ['s1'],
-        'transaction should have one store in scope');
-    assert_array_equals(db.transaction(['s1', 's2']).objectStoreNames,
-        ['s1', 's2'],
-        'transaction should have two stores in scope');
-    t.done();
-}, 'IDBTransaction.objectStoreNames - transaction scope');
-
-with_stores_test(['s1', 's2'], function(t, db) {
-    var tx = db.transaction(['s1', 's2'], 'readwrite');
-    tx.objectStore('s1').put(0, 0);
-    tx.onabort = t.unreached_func('transaction should complete');
-    tx.oncomplete = t.step_func(function() {
-        assert_array_equals(tx.objectStoreNames, ['s1', 's2'],
-            'objectStoreNames should return scope after transaction commits');
-        t.done();
-    });
-}, 'IDBTransaction.objectStoreNames - value after commit');
-
-with_stores_test(['s1', 's2'], function(t, db) {
-    var tx = db.transaction(['s1', 's2'], 'readwrite');
-    tx.objectStore('s1').put(0, 0);
-    tx.objectStore('s1').add(0, 0);
-    tx.oncomplete = t.unreached_func('transaction should abort');
-    tx.onabort = t.step_func(function() {
-        assert_array_equals(tx.objectStoreNames, ['s1', 's2'],
-            'objectStoreNames should return scope after transaction aborts');
-        t.done();
-    });
-}, 'IDBTransaction.objectStoreNames - value after abort');
-
-with_stores_test(['s1', 's2', 's3'], function(t, db) {
-    assert_array_equals(db.transaction(['s3', 's2', 's1']).objectStoreNames,
-        ['s1', 's2', 's3'],
-        'transaction objectStoreNames should be sorted');
-    t.done();
-}, 'IDBTransaction.objectStoreNames - sorting');
-
-with_stores_test(['s1', 's2'], function(t, db) {
-    assert_array_equals(
-        db.transaction(['s2', 's1', 's2']).objectStoreNames,
-            ['s1', 's2'],
-        'transaction objectStoreNames should not have duplicates');
-    t.done();
-}, 'IDBTransaction.objectStoreNames - no duplicates');
-
-var unusual_names = [
-    '', // empty string
-
-    '\x00', // U+0000 NULL
-    '\xFF', // U+00FF LATIN SMALL LETTER Y WITH DIAERESIS
-
-    '1', // basic ASCII
-    '12', // basic ASCII
-    '123', // basic ASCII
-    'abc', // basic ASCII
-    'ABC', // basic ASCII
-
-    '\xA2', // U+00A2 CENT SIGN
-    '\u6C34', // U+6C34 CJK UNIFIED IDEOGRAPH (water)
-    '\uD834\uDD1E', // U+1D11E MUSICAL SYMBOL G-CLEF (UTF-16 surrogate pair)
-    '\uFFFD', // U+FFFD REPLACEMENT CHARACTER
-
-    '\uD800', // UTF-16 surrogate lead
-    '\uDC00', // UTF-16 surrogate trail
-];
-unusual_names.sort();
-
-indexeddb_test(function(t, db, tx) {
-    unusual_names.slice().reverse().forEach(function(name) {
-        db.createObjectStore(name);
-    });
-    assert_array_equals(tx.objectStoreNames, unusual_names,
-        'transaction should have names sorted');
-}, function(t, db) {
-    var tx = db.transaction(unusual_names.slice().reverse().concat(unusual_names));
-    assert_array_equals(tx.objectStoreNames, unusual_names,
-        'transaction should have names sorted with no duplicates');
-    t.done();
-}, 'IDBTransaction.objectStoreNames - unusual names');
-
-</script>
diff --git a/tests/wpt/tests/accname/name/comp_labelledby.html b/tests/wpt/tests/accname/name/comp_labelledby.html
index 2a22fd89191..26c2f5e5005 100644
--- a/tests/wpt/tests/accname/name/comp_labelledby.html
+++ b/tests/wpt/tests/accname/name/comp_labelledby.html
@@ -21,6 +21,7 @@
   - /accname/name/shadowdom/*
 
 -->
+<h2>Tests for <code>aria-labelledby</code></h2>
 
 <div role="group" aria-labelledby="h" class="ex" data-expectedlabel="first heading" data-testname="div group explicitly labelledby heading">
   <h2 id="h">first heading</h2>
@@ -36,6 +37,42 @@
   <span id="s1">verify</span><span id="s2">spaces</span><span>FAIL IF INCLUDED</span><span id="s3">between</span><span id="s4">foreach</span>
 </nav>
 
+
+<!-- Removed tests to be merged back in (or this PR reverted) after Interop 2024 completed on Feb 6, 2025. -->
+
+<h2>Tests for <code>aria-labeledby</code> (non-standard spelling)</h2>
+
+<span id="n1">first label</span>
+<span id="n2">second label</span>
+
+<h2>Tests for precedence: <code>aria-labelledby</code> vs. <code>aria-labeledby</code> (non-standard spelling)</h2>
+<!-- The "aria-labelledby" spelling should take precedence over "aria-labeledby" for accname -->
+
+<a href="#" aria-labelledby="n1" aria-labeledby="n2" class="ex" data-expectedlabel="first label" data-testname="link labelled by aria-labelledby supercedes aria-labeledby (non-standard spelling)">x</a>
+<button aria-labelledby="n1" aria-labeledby="n2" class="ex" data-expectedlabel="first label" data-testname="button labelled by aria-labelledby supercedes aria-labeledby (non-standard spelling)">x</button>
+<div role="group" aria-labelledby="n1" aria-labeledby="n2" class="ex" data-expectedlabel="first label" data-testname="div labelled by aria-labelledby supercedes aria-labeledby (non-standard spelling)">x</div>
+
+<a href="#" aria-labeledby="n1" aria-labelledby="n2" class="ex" data-expectedlabel="second label" data-testname="link labelled by [aria-labeledby][aria-labelledby]">x</a>
+<button aria-labeledby="n1" aria-labelledby="n2" class="ex" data-expectedlabel="second label" data-testname="button labelled by [aria-labeledby][aria-labelledby]">x</button>
+<div role="group" aria-labeledby="n1" aria-labelledby="n2" class="ex" data-expectedlabel="second label" data-testname="div labelled by [aria-labeledby][aria-labelledby]">x</div>
+
+<h2>Tests for name precedence with <code>aria-labeledby</code> (non-standard spelling)</h2>
+<!-- Name computation: https://w3c.github.io/accname/#computation-steps -->
+
+<!-- Step 2H: Recursive Name from Content, see wpt/accname/name/comp_name_from_content.html  -->
+<h3>
+  <a href="#" aria-labeledby="nested_image_label2">
+    link1<!-- this text is skipped because of aria-labeledby -->
+  </a>
+  <a href="#" data-expectedlabel="link2 image link3" data-testname="link name from content for each child including nested image (referenced elsewhere via labeledby)" class="ex">
+    link2
+    <img id="nested_image_label2" alt="image" src="data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==">
+    <!-- image skipped in this link (when computing heading text) because it was already referenced by the first link within this heading label recursion cycle. -->
+    <!-- but image not skipped when computing the text of the link itself since it has not been referenced in that context -->
+    link3
+  </a>
+</h3>
+
 <!--
 
   BLOCKED on https://github.com/w3c/accname/issues/209
diff --git a/tests/wpt/tests/ai/language_detection/detector.https.tentative.any.js b/tests/wpt/tests/ai/language_detection/detector.https.tentative.any.js
index 6bd3a41b8cd..2fd91c245bb 100644
--- a/tests/wpt/tests/ai/language_detection/detector.https.tentative.any.js
+++ b/tests/wpt/tests/ai/language_detection/detector.https.tentative.any.js
@@ -5,11 +5,30 @@
 
 promise_test(async t => {
   const detector = await ai.languageDetector.create();
-  const results = await detector.detect("this string is in English");
+  const results = await detector.detect('this string is in English');
   // "en" should be highest confidence.
-  assert_equals(results[0].detectedLanguage, "en");
+  assert_equals(results[0].detectedLanguage, 'en');
   // Results should be from high to low confidence.
   for (let i = 0; i < results.length - 1; i++) {
     assert_greater_than_equal(results[i].confidence, results[i + 1].confidence);
   }
-});
+}, 'Simple AILanguageDetector.detect() call');
+
+promise_test(async t => {
+  const controller = new AbortController();
+  controller.abort();
+
+  const createPromise = ai.languageDetector.create({signal: controller.signal});
+
+  await promise_rejects_dom(t, 'AbortError', createPromise);
+}, 'AILanguageDetectorFactory.create() call with an aborted signal.');
+
+promise_test(async t => {
+  const controller = new AbortController();
+  controller.abort();
+
+  const detector = await ai.languageDetector.create();
+  const detectPromise = await detector.detect('this string is in English');
+
+  await promise_rejects_dom(t, 'AbortError', detectPromise);
+}, 'AILanguageDetector.detect() call with an aborted signal.');
diff --git a/tests/wpt/tests/ai/resources/util.js b/tests/wpt/tests/ai/resources/util.js
new file mode 100644
index 00000000000..49d677edae2
--- /dev/null
+++ b/tests/wpt/tests/ai/resources/util.js
@@ -0,0 +1,27 @@
+// The method should take the AbortSignal as an option and return a promise.
+const testAbortPromise = async (t, method) => {
+  // Test abort signal without custom error.
+  {
+    const controller = new AbortController();
+    const promise = method(controller.signal);
+    controller.abort();
+    await promise_rejects_dom(t, 'AbortError', promise);
+
+    // Using the same aborted controller will get the `AbortError` as well.
+    const anotherPromise = method(controller.signal);
+    await promise_rejects_dom(t, 'AbortError', anotherPromise);
+  }
+
+  // Test abort signal with custom error.
+  {
+    const err = new Error('test');
+    const controller = new AbortController();
+    const promise = method(controller.signal);
+    controller.abort(err);
+    await promise_rejects_exactly(t, err, promise);
+
+    // Using the same aborted controller will get the same error as well.
+    const anotherPromise = method(controller.signal);
+    await promise_rejects_exactly(t, err, anotherPromise);
+  }
+};
diff --git a/tests/wpt/tests/ai/translator/ai_translator_translate.tentative.https.any.js b/tests/wpt/tests/ai/translator/ai_translator_translate.tentative.https.any.js
index a45fb2b621a..1066a9cff61 100644
--- a/tests/wpt/tests/ai/translator/ai_translator_translate.tentative.https.any.js
+++ b/tests/wpt/tests/ai/translator/ai_translator_translate.tentative.https.any.js
@@ -1,6 +1,7 @@
 // META: title=Translate from English to Japanese
 // META: global=window,worker
 // META: timeout=long
+// META: script=../resources/util.js
 //
 // Setting `timeout=long` as this test may require downloading the translation
 // library and the language models.
@@ -10,12 +11,24 @@
 promise_test(async t => {
   const translatorFactory = ai.translator;
   assert_not_equals(translatorFactory, null);
-  const translator = await translatorFactory.create({
-    sourceLanguage: "en",
-    targetLanguage: "ja"
-  });
+  const translator = await translatorFactory.create(
+      {sourceLanguage: 'en', targetLanguage: 'ja'});
   assert_equals(await translator.translate('hello'), 'こんにちは');
-});
+}, 'Simple AITranslator.translate() call');
+
+promise_test(async () => {
+  const translator =
+      await ai.translator.create({sourceLanguage: 'en', targetLanguage: 'ja'});
+  const streamingResponse = translator.translateStreaming('hello');
+  assert_equals(
+      Object.prototype.toString.call(streamingResponse),
+      '[object ReadableStream]');
+  let result = '';
+  for await (const chunk of streamingResponse) {
+    result += chunk;
+  }
+  assert_equals(await translator.translate('hello'), 'こんにちは');
+}, 'Simple AITranslator.translateStreaming() call');
 
 promise_test(async t => {
   const translator =
@@ -31,3 +44,40 @@ promise_test(async (t) => {
   await promise_rejects_dom(
       t, 'InvalidStateError', translator.translate('hello'));
 }, 'AITranslator.translate() fails after destroyed');
+
+promise_test(async t => {
+  const controller = new AbortController();
+  controller.abort();
+
+  const createPromise = ai.translator.create(
+      {signal: controller.signal, sourceLanguage: 'en', targetLanguage: 'ja'});
+
+  await promise_rejects_dom(t, 'AbortError', createPromise);
+}, 'AITranslatorFactory.create() call with an aborted signal.');
+
+promise_test(async t => {
+  await testAbortPromise(t, signal => {
+    return ai.translator.create(
+        {signal, sourceLanguage: 'en', targetLanguage: 'ja'});
+  });
+}, 'Aborting AITranslatorFactory.create().');
+
+promise_test(async t => {
+  const controller = new AbortController();
+  controller.abort();
+
+  const translator =
+      await ai.translator.create({sourceLanguage: 'en', targetLanguage: 'ja'});
+  const translatePromise =
+      translator.translate('hello', {signal: controller.signal});
+
+  await promise_rejects_dom(t, 'AbortError', translatePromise);
+}, 'AITranslator.translate() call with an aborted signal.');
+
+promise_test(async t => {
+  const translator =
+      await ai.translator.create({sourceLanguage: 'en', targetLanguage: 'ja'});
+  await testAbortPromise(t, signal => {
+    return translator.translate('hello', {signal});
+  });
+}, 'Aborting AITranslator.translate().');
diff --git a/tests/wpt/tests/clear-site-data/clear-cache-partitioning.sub.https.html b/tests/wpt/tests/clear-site-data/clear-cache-partitioning.sub.https.html
new file mode 100644
index 00000000000..35640785662
--- /dev/null
+++ b/tests/wpt/tests/clear-site-data/clear-cache-partitioning.sub.https.html
@@ -0,0 +1,219 @@
+<!DOCTYPE html>
+<body>
+<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>
+
+/**
+ * Constructs a url for an intermediate "bounce" hop which represents a tracker.
+ * @param {string} cacheHelper - Unique uuid for this test
+ * @param {*} options - URL generation options.
+ * @param {boolean} [options.second_origin = true] - whether domain should be a different origin
+ * @param {boolean} [options.subdomain = false] - whether the domain should start with
+ *        a different subdomain
+ * @param {boolean} [options.cache = false] - whether the resource should be cacheable
+ * @param {(null|'cache'|'all')} [options.clear] - whether to send the
+ *        Clear-Site-Data header.
+ * @param {(null|'cache'|'all')} [options.clear_first] - whether to send the
+ *        Clear-Site-Data header on first response
+ * @param {*} [options.iframe] - iframe same parameters as options (recursive)
+ */
+function getUrl(cacheHelper, {
+    subdomain = false,
+    secondOrigin = false,
+    cache = false,
+    clear = null,
+    clearFirst = null,
+    iframe = null,
+}) {
+    let url = "https://";
+    if (subdomain && secondOrigin) {
+        url += "{{hosts[alt][www2]}}";
+    } else if (subdomain) { // && !second_origin
+        url += "{{hosts[][www2]}}";
+    } else if (secondOrigin) { // && !subdomain
+        url += "{{hosts[alt][]}}";
+    } else { // !second_origin && !subdomain
+        url += "{{hosts[][]}}";
+    }
+    url += ":{{ports[https][1]}}";
+    url += "/clear-site-data/support/clear-site-data-cache.py";
+    url = new URL(url);
+    let params = new URLSearchParams();
+    params.append("cache_helper", cacheHelper);
+    params.append("response", "single_html")
+    if (clear !== null) {
+        params.append("clear", clear);
+    }
+    if (clearFirst != null) {
+        params.append("clear_first", clearFirst);
+    }
+    if (cache) {
+        params.append("cache", "");
+    }
+    if (iframe != null) {
+        let iframeUrl = getUrl(cacheHelper, iframe);
+        params.append("iframe", iframeUrl);
+    }
+    url.search = params;
+    return url.toString();
+}
+
+/**
+ * Opens test pages sequentially, compares first and last uuid. Makes sure test cleans up properly
+ * @param test - test clean up
+ * @param {string} firstUuid - uuid returned by first url
+ * @param {array[string]} testUrls - array of all urls that should be visited
+ * @param {integer} curIdx - index in testUrls that is visited in the current function call
+ * @param {function assert_not_equal|assert_equal} assert - function that gets passed first and last
+ *        uuid and determines the success of the test case
+ * @param {function} resolve - function to call when test case is complete
+ * @param {*} options - URL generation options.
+ */
+function openTestPageHelper(test, firstUuid, testUrls, curIdx, assert, resolve) {
+    window.addEventListener("message", test.step_func(e => {
+        let curUuid = e.data;
+        if (firstUuid === null) {
+            firstUuid = curUuid;
+        }
+
+        if (curIdx + 1 < testUrls.length) {
+            openTestPageHelper(test, firstUuid, testUrls, curIdx + 1, assert, resolve);
+        } else {
+            // Last Step
+            assert(firstUuid, curUuid);
+            resolve();
+        }
+    }), {once: true});
+
+    window.open(testUrls[curIdx]);
+}
+
+// Here's the set-up for this test: Step 1 and Step 2 are repeated for each param in params
+// Step 1 (main window) Open popup window with url generated with `getUrl`
+// Step 2 (first window) Message main window with potentially cached uuid and close popup
+// Last Step (main window): Assert first and last uuid not equal due to `clear-site-data: "cache"` header
+//
+// Basic diagram visualizing how the test works:
+//
+//     main window opens sequentially:
+//             (1)                  (2)                (last) = (1)
+//              | Step 1             | Step 3                | Step 4
+//              |                    |                       |
+//     +--------v---------+   +------v----------+     +------v-----------+
+//     | first / second   |   |  Clear Data?    |     |                  |
+//     | origin           |   |                 |     |                  |
+//     |                  |   |                 |     |                  |
+//     | +-iframe-------+ |   | +-(iframe?)---+ | ... | +-iframe-------+ |
+//     | | first/second | |   | | Clear Data? | |     | |              | |
+//     | | origin       | |   | |             | |     | |              | |
+//     | +-----------+--+ |   | +-------------+ |     | +-+------------+ |
+//     +-------------+----+   +-----------------+     +---+--------------+
+//                   |                                    |
+//                   | Step 2            +----------------+ Step 5
+//                   |                   |
+//                   v                   v
+//     Last Step: is uuid from (1) different from (last)?
+function testCacheClear(test, params, assert) {
+    if (params.length < 2) {
+        // fail test case
+        return new Promise((resolve, reject) => reject());
+    }
+
+    const cacheHelper = self.crypto.randomUUID();
+    const testUrls = params.map((param) => getUrl(cacheHelper, param));
+
+    return new Promise(resolve => {
+        openTestPageHelper(test, null, testUrls, 0, assert, resolve)
+    });
+}
+
+const CLEAR_ORIGIN_CACHE = {
+    clear: "cache",
+}
+
+promise_test(test => {
+    const TEST_SITE = {
+        iframe: {
+            cache: true,
+        }
+    }
+    return testCacheClear(test, [TEST_SITE, CLEAR_ORIGIN_CACHE, TEST_SITE], assert_not_equals);
+}, "same site data also gets cleared in iframe");
+
+promise_test(test => {
+    const TEST_SITE = {
+        iframe: {
+            cache: true,
+            secondOrigin: true,
+        }
+    }
+    return testCacheClear(test, [TEST_SITE, CLEAR_ORIGIN_CACHE, TEST_SITE], assert_equals);
+}, "cross origin iframe data doesn't get cleared");
+
+promise_test(test => {
+    const TEST_SITE = {
+        iframe: {
+            cache: true,
+            secondOrigin: true,
+        }
+    }
+    return testCacheClear(test, [TEST_SITE, CLEAR_ORIGIN_CACHE, TEST_SITE], assert_equals);
+}, "clearing cache doesn't affect cross origin iframe");
+
+promise_test(test => {
+    const TEST_SITE = {
+        cache: true,
+        subdomain: true,
+    }
+    return testCacheClear(test, [TEST_SITE, CLEAR_ORIGIN_CACHE, TEST_SITE], assert_equals);
+}, "clearing cache doesn't affect subdomain");
+
+promise_test(test => {
+    const TEST_SITE = {
+        iframe: {
+            secondOrigin: true,
+            cache: true,
+        }
+    }
+    const TEST_SITE_CLEAR_IFRAME = {
+        iframe: {
+            secondOrigin: true,
+            clear: "all",
+        }
+    }
+    return testCacheClear(test, [TEST_SITE, TEST_SITE_CLEAR_IFRAME, TEST_SITE], assert_not_equals);
+}, "clear in cross origin iframe clears data from that iframe");
+
+promise_test(test => {
+    const TEST_SITE = {
+        cache: true
+    };
+    const TEST_SITE_CLEAR_IFRAME = {
+        secondOrigin: true,
+        iframe: {
+            clear: "cache",
+        }
+    }
+    return testCacheClear(test, [TEST_SITE, TEST_SITE_CLEAR_IFRAME, TEST_SITE], assert_equals);
+}, "clear in cross origin iframe doesn't clear unpartitioned data from that cross origin");
+
+promise_test(test => {
+    const TEST_SITE = {
+        secondOrigin: true,
+        iframe: {
+            cache: true,
+        }
+    }
+
+    const TEST_SITE_CLEAR_IFRAME = {
+        clear: "cache"
+    };
+    return testCacheClear(test, [TEST_SITE, TEST_SITE_CLEAR_IFRAME, TEST_SITE], assert_equals);
+}, "clear in unpartitioned context doesn't clear partitioned data");
+
+</script>
+</body>
+</html>
diff --git a/tests/wpt/tests/clear-site-data/clear-cache.https.html b/tests/wpt/tests/clear-site-data/clear-cache.https.html
index eab2e597502..e356001d0c8 100644
--- a/tests/wpt/tests/clear-site-data/clear-cache.https.html
+++ b/tests/wpt/tests/clear-site-data/clear-cache.https.html
@@ -46,20 +46,17 @@ function test_cache_clear(test, params1, params2, params3) {
                     }), {once: true});
 
                     // Step 5
-                    let third_window = window.open(thirdUrl);
-                    test.add_cleanup(third_window.close);
+                    window.open(thirdUrl);
                 }
 
             }), {once: true});
 
             // Step 3
-            let second_window = window.open(secondUrl);
-            test.add_cleanup(second_window.close);
+            window.open(secondUrl);
         }), {once: true});
 
         // Step 1
-        let first_window = window.open(firstUrl);
-        test.add_cleanup(first_window.close);
+        window.open(firstUrl);
     });
 }
 
diff --git a/tests/wpt/tests/clear-site-data/support/clear-site-data-cache.py b/tests/wpt/tests/clear-site-data/support/clear-site-data-cache.py
index 87107693b46..38f131bdd52 100644
--- a/tests/wpt/tests/clear-site-data/support/clear-site-data-cache.py
+++ b/tests/wpt/tests/clear-site-data/support/clear-site-data-cache.py
@@ -41,14 +41,43 @@ def main(request, response):
             headers += [(b"Clear-Site-Data", b'"' + clear + b'"')]
 
     if response_type == b"single_html":
-        # send unique UUID. Cache got cleared when uuids don't match.
-        content = f'''
-            <script>
-                window.opener.postMessage("{uuid.uuid4()}" , "*");
-            </script>
-            <body>
-                {request.url}
-            </body>'''
+        iframe = ""
+        if b"iframe" in request.GET:
+            # forward message from iframe to opener
+            iframe_url = request.GET.first(b"iframe").decode()
+            content = f'''
+                <script>
+                    // forward iframe uuid to opener
+                    window.addEventListener('message', function(event) {{
+                        if(window.opener) {{
+                            window.opener.postMessage(event.data, "*");
+                        }} else {{
+                            window.parent.postMessage(event.data, "*");
+                        }}
+                        window.close();
+                    }});
+                </script>
+                <br>
+                {request.url}<br>
+                {iframe_url}<br>
+                <iframe src="{iframe_url}"></iframe>
+                </body>
+            '''
+        else:
+            # send unique UUID. Cache got cleared when uuids don't match.
+            u = uuid.uuid4()
+            content = f'''
+                <script>
+                    if(window.opener) {{
+                        window.opener.postMessage("{u}", "*");
+                    }} else {{
+                        window.parent.postMessage("{u}", "*");
+                    }}
+                    window.close();
+                </script>
+                <body>
+                    {request.url}
+                </body>'''
     elif response_type == b"json":
         # send unique UUID. helper for below "html_embed_json"
         content = f'''["{uuid.uuid4()}"]'''
@@ -58,7 +87,10 @@ def main(request, response):
             <script>
                 fetch("{url}")
                     .then(response => response.json())
-                    .then(uuid => window.opener.postMessage(uuid[0], "*"));
+                    .then(uuid => {{
+                        window.opener.postMessage(uuid[0], "*");
+                        window.close();
+                    }});
             </script>
             <body>
                 {request.url}<br>
diff --git a/tests/wpt/tests/common/dispatcher/remote-executor-worker.js b/tests/wpt/tests/common/dispatcher/remote-executor-worker.js
new file mode 100644
index 00000000000..afba4bae24f
--- /dev/null
+++ b/tests/wpt/tests/common/dispatcher/remote-executor-worker.js
@@ -0,0 +1,5 @@
+importScripts('./dispatcher.js');
+
+const params = new URLSearchParams(location.search);
+const uuid = params.get('uuid');
+const executor = new Executor(uuid);  // `execute()` is called in constructor.
diff --git a/tests/wpt/tests/content-security-policy/securitypolicyviolation/source-file.html b/tests/wpt/tests/content-security-policy/securitypolicyviolation/source-file.html
index 354b8dfd201..d215d0ede69 100644
--- a/tests/wpt/tests/content-security-policy/securitypolicyviolation/source-file.html
+++ b/tests/wpt/tests/content-security-policy/securitypolicyviolation/source-file.html
@@ -22,11 +22,7 @@ const testSourceFile = (description, input, output) => {
       eval('');
       //# sourceURL=${input}
     `)
-    try {
-      eval(trusted_script);
-      assert_unreached();
-    } catch (e) {}
-
+    assert_throws_js(EvalError, _ => eval(trusted_script));
     assert_equals((await violation).sourceFile, output);
   }, description);
 };
diff --git a/tests/wpt/tests/css/css-animations/parsing/animation-trigger-shorthand.tentative.html b/tests/wpt/tests/css/css-animations/parsing/animation-trigger-shorthand.tentative.html
new file mode 100644
index 00000000000..d0b6befea8e
--- /dev/null
+++ b/tests/wpt/tests/css/css-animations/parsing/animation-trigger-shorthand.tentative.html
@@ -0,0 +1,147 @@
+<!DOCTYPE html>
+<title>animation-trigger shorthand</title>
+<!-- TODO(crbug.com/390314945): Replace with spec link when the spec lands. -->
+<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/8942">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/shorthand-testcommon.js"></script>
+<script src="/css/support/parsing-testcommon.js"></script>
+<script src="/css/support/computed-testcommon.js"></script>
+<div id="target" style="font-size:10px"></div>
+<script>
+  test_shorthand_value('animation-trigger',
+    'view() once contain 0% contain 100% cover 0% cover 100%',
+    {
+      'animation-trigger-type': 'once',
+      'animation-trigger-timeline': 'view()',
+      'animation-trigger-range-start': 'contain',
+      'animation-trigger-range-end': 'contain',
+      'animation-trigger-exit-range-start': 'cover',
+      'animation-trigger-exit-range-end': 'cover',
+    });
+    test_shorthand_value('animation-trigger',
+    'view() once contain 20% contain 80% cover 10% cover 90%',
+    {
+      'animation-trigger-type': 'once',
+      'animation-trigger-timeline': 'view()',
+      'animation-trigger-range-start': 'contain 20%',
+      'animation-trigger-range-end': 'contain 80%',
+      'animation-trigger-exit-range-start': 'cover 10%',
+      'animation-trigger-exit-range-end': 'cover 90%',
+    });
+  test_shorthand_value('animation-trigger',
+    'view() once contain 0% contain 100% cover 0%',
+    {
+      'animation-trigger-type': 'once',
+      'animation-trigger-timeline': 'view()',
+      'animation-trigger-range-start': 'contain',
+      'animation-trigger-range-end': 'contain',
+      'animation-trigger-exit-range-start': 'cover',
+      'animation-trigger-exit-range-end': 'cover',
+    });
+  test_shorthand_value('animation-trigger',
+    'view() once contain 20% contain 80% cover 10%',
+    {
+      'animation-trigger-type': 'once',
+      'animation-trigger-timeline': 'view()',
+      'animation-trigger-range-start': 'contain 20%',
+      'animation-trigger-range-end': 'contain 80%',
+      'animation-trigger-exit-range-start': 'cover 10%',
+      'animation-trigger-exit-range-end': 'cover',
+    });
+  test_shorthand_value('animation-trigger',
+    'view() once contain 0% contain 100% cover',
+    {
+      'animation-trigger-type': 'once',
+      'animation-trigger-timeline': 'view()',
+      'animation-trigger-range-start': 'contain',
+      'animation-trigger-range-end': 'contain',
+      'animation-trigger-exit-range-start': 'cover',
+      'animation-trigger-exit-range-end': 'cover',
+    });
+  test_shorthand_value('animation-trigger',
+    'view() alternate contain 0% contain 100%',
+    {
+      'animation-trigger-type': 'alternate',
+      'animation-trigger-timeline': 'view()',
+      'animation-trigger-range-start': 'contain',
+      'animation-trigger-range-end': 'contain',
+      'animation-trigger-exit-range-start': 'normal',
+      'animation-trigger-exit-range-end': 'normal',
+    });
+  test_shorthand_value('animation-trigger',
+    'view() alternate contain 20% contain 80%',
+    {
+      'animation-trigger-type': 'alternate',
+      'animation-trigger-timeline': 'view()',
+      'animation-trigger-range-start': 'contain 20%',
+      'animation-trigger-range-end': 'contain 80%',
+      'animation-trigger-exit-range-start': 'normal',
+      'animation-trigger-exit-range-end': 'normal',
+    });
+  test_shorthand_value('animation-trigger',
+    'view() alternate contain 0%',
+    {
+      'animation-trigger-type': 'alternate',
+      'animation-trigger-timeline': 'view()',
+      'animation-trigger-range-start': 'contain',
+      'animation-trigger-range-end': 'contain',
+      'animation-trigger-exit-range-start': 'normal',
+      'animation-trigger-exit-range-end': 'normal',
+    });
+  test_shorthand_value('animation-trigger',
+    'view() alternate contain 10%',
+    {
+      'animation-trigger-type': 'alternate',
+      'animation-trigger-timeline': 'view()',
+      'animation-trigger-range-start': 'contain 10%',
+      'animation-trigger-range-end': 'contain',
+      'animation-trigger-exit-range-start': 'normal',
+      'animation-trigger-exit-range-end': 'normal',
+    });
+  test_shorthand_value('animation-trigger',
+    'view() alternate contain',
+    {
+      'animation-trigger-type': 'alternate',
+      'animation-trigger-timeline': 'view()',
+      'animation-trigger-range-start': 'contain',
+      'animation-trigger-range-end': 'contain',
+      'animation-trigger-exit-range-start': 'normal',
+      'animation-trigger-exit-range-end': 'normal',
+    });
+  test_shorthand_value('animation-trigger', 'view() alternate',
+    {
+      'animation-trigger-type': 'alternate',
+      'animation-trigger-timeline': 'view()',
+      'animation-trigger-range-start': 'normal',
+      'animation-trigger-range-end': 'normal',
+      'animation-trigger-exit-range-start': 'normal',
+      'animation-trigger-exit-range-end': 'normal',
+    });
+  test_shorthand_value('animation-trigger', 'repeat',
+    {
+      'animation-trigger-type': 'repeat',
+      'animation-trigger-timeline': 'auto',
+      'animation-trigger-range-start': 'normal',
+      'animation-trigger-range-end': 'normal',
+      'animation-trigger-exit-range-start': 'normal',
+      'animation-trigger-exit-range-end': 'normal',
+    });
+  test_computed_value('animation-trigger',
+    'view() once contain 0% contain 100% cover 0% cover 100%',
+    'view() once contain contain cover cover');
+  test_computed_value('animation-trigger',
+    'view() once contain 20% contain 80% cover 10% cover 90%');
+  test_computed_value('animation-trigger',
+    'view() once contain 20% contain 80% cover 0%',
+    'view() once contain 20% contain 80% cover cover');
+  test_computed_value('animation-trigger',
+    'view() once contain 20% contain 80% cover 10%',
+    'view() once contain 20% contain 80% cover 10% cover');
+  test_computed_value('animation-trigger',
+      'view() once contain 0% contain 100%',
+      'view() once contain contain normal normal');
+  test_computed_value('animation-trigger',
+      'view() once',
+      'view() once normal normal normal normal');
+</script>
diff --git a/tests/wpt/tests/css/css-backgrounds/background-image-table-cells-straddling-no-repeat.html b/tests/wpt/tests/css/css-backgrounds/background-image-table-cells-straddling-no-repeat.html
index 67f7937a3fc..022e6462089 100644
--- a/tests/wpt/tests/css/css-backgrounds/background-image-table-cells-straddling-no-repeat.html
+++ b/tests/wpt/tests/css/css-backgrounds/background-image-table-cells-straddling-no-repeat.html
@@ -3,6 +3,7 @@
 <link rel="help" href="https://www.w3.org/TR/CSS21/tables.html#table-layers">
 <link rel="help" href="https://drafts.csswg.org/css-tables/#drawing-cell-backgrounds">
 <link rel="match" href="../reference/ref-filled-green-100px-square-only.html">
+<meta name="fuzzy" content="maxDifference=0-1; totalPixels=0-4500">
 <style>
 .green {
   background-image: linear-gradient(green, green);
diff --git a/tests/wpt/tests/css/css-contain/content-visibility/dynamic-change-with-slotted-text-ref.html b/tests/wpt/tests/css/css-contain/content-visibility/dynamic-change-with-slotted-text-ref.html
new file mode 100644
index 00000000000..f804491b9d8
--- /dev/null
+++ b/tests/wpt/tests/css/css-contain/content-visibility/dynamic-change-with-slotted-text-ref.html
@@ -0,0 +1,8 @@
+<!DOCTYPE HTML>
+<html>
+
+<div>
+<div>math</div>
+after
+<p></p>
+</div>
diff --git a/tests/wpt/tests/css/css-contain/content-visibility/dynamic-change-with-slotted-text.html b/tests/wpt/tests/css/css-contain/content-visibility/dynamic-change-with-slotted-text.html
new file mode 100644
index 00000000000..37b16621321
--- /dev/null
+++ b/tests/wpt/tests/css/css-contain/content-visibility/dynamic-change-with-slotted-text.html
@@ -0,0 +1,32 @@
+<!DOCTYPE HTML>
+<html class="reftest-wait">
+<link rel="help" href="https://issues.chromium.org/383593255">
+<link rel="match" href="dynamic-change-with-slotted-text-ref.html">
+
+<div>
+$$\text{math}$$
+after
+<p></p>
+</div>
+
+<script>
+
+let div = document.querySelector("div");
+let shadow = div.attachShadow({mode: "open"});
+shadow.innerHTML = "<slot style='display:block;content-visibility: hidden'></slot>";
+let slot = shadow.querySelector("slot");
+
+requestAnimationFrame(() => {
+  getComputedStyle(div.querySelector("p")).width;
+  let t1 = div.firstChild;
+  let t2 = t1.splitText(1);
+  let t3 = t2.splitText(15);
+  let d = document.createElement("div");
+  d.innerText = "math";
+  t2.replaceWith(d);
+  requestAnimationFrame(() => {
+    slot.style.contentVisibility = "";
+    document.documentElement.classList.remove("reftest-wait");
+  });
+});
+</script>
diff --git a/tests/wpt/tests/css/css-fonts/idlharness.html b/tests/wpt/tests/css/css-fonts/idlharness.html
index ecc601bcf6a..c51e106ccc5 100644
--- a/tests/wpt/tests/css/css-fonts/idlharness.html
+++ b/tests/wpt/tests/css/css-fonts/idlharness.html
@@ -20,7 +20,7 @@
   "use strict";
 
   idl_test(
-    ["css-fonts"],
+    ["css-fonts-5", "css-fonts"],
     ["cssom"],
     idl_array => {
       idl_array.add_objects({
diff --git a/tests/wpt/tests/css/css-fonts/lang-attribute-affects-rendering-ref.html b/tests/wpt/tests/css/css-fonts/lang-attribute-affects-rendering-ref.html
new file mode 100644
index 00000000000..f832a1ef61f
--- /dev/null
+++ b/tests/wpt/tests/css/css-fonts/lang-attribute-affects-rendering-ref.html
@@ -0,0 +1,20 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="utf-8">
+  <style>
+    * { font-size: 50px }
+
+    @font-face {
+      font-family: test-font-family;
+      src: url(support/fonts/Lato-Medium.ttf);
+    }
+
+    div { font-family: test-font-family; }
+  </style>
+</head>
+<body>
+  `lang="en"` should render ligatures, `lang="tr"` not.
+  <div lang="tr">fi</div>
+</body>
+</html>
diff --git a/tests/wpt/tests/css/css-fonts/lang-attribute-affects-rendering.html b/tests/wpt/tests/css/css-fonts/lang-attribute-affects-rendering.html
new file mode 100644
index 00000000000..041fd8f5abd
--- /dev/null
+++ b/tests/wpt/tests/css/css-fonts/lang-attribute-affects-rendering.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="utf-8">
+  <link rel="help" href="https://html.spec.whatwg.org/#attr-lang">
+  <link rel="mismatch" href="lang-attribute-affects-rendering-ref.html">
+  <style>
+    * { font-size: 50px }
+
+    @font-face {
+      font-family: test-font-family;
+      /* <Lato-Medium.ttf> provides different ligatures for English and
+         Turkish. */
+      src: url(support/fonts/Lato-Medium.ttf);
+    }
+
+    div { font-family: test-font-family; }
+  </style>
+</head>
+<body>
+  `lang="en"` should render ligatures, `lang="tr"` not.
+  <div lang="en">fi</div>
+</body>
+</html>
diff --git a/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-001.html b/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-001.html
new file mode 100644
index 00000000000..2741196e522
--- /dev/null
+++ b/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-001.html
@@ -0,0 +1,34 @@
+<!DOCTYPE html>
+<title>
+  CSS Gap Decorations: column and row gaps are painted.
+</title>
+<link rel="help" href="https://drafts.csswg.org/css-gaps-1/">
+<link rel="match" href="../../../reference/ref-filled-green-100px-square.xht">
+<link rel="author" title="Sam Davis Omekara Jr." href="mailto:samomekarajr@microsoft.com">
+<style>
+  .grid-container {
+    display: grid;
+    grid-template-columns: repeat(3, 1fr);
+    column-gap: 10px;
+    row-gap: 10px;
+    height: 100px;
+    width: 100px;
+    background: red;
+    column-rule-color: green;
+    column-rule-style: solid;
+    column-rule-width: 10px;
+  }
+
+  .grid-item {
+    background: green;
+  }
+</style>
+<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+<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 class="grid-item"></div>
+    <div class="grid-item"></div>
+</div>
diff --git a/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-002-ref.html b/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-002-ref.html
new file mode 100644
index 00000000000..f21be425243
--- /dev/null
+++ b/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-002-ref.html
@@ -0,0 +1,38 @@
+<!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">
+<style>
+  .container {
+    width: 110px;
+    height: 110px;
+
+    column-count: 2;
+    column-gap: 10px;
+    column-rule-color: pink;
+    column-rule-style: solid;
+    column-rule-width: 10px;
+
+    background-color: green;
+
+    overflow: hidden;
+  }
+
+  .item {
+    background: skyblue;
+    height: 50px;
+    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: 10px;
+  }
+</style>
+<div class="container">
+    <div class="item"></div>
+    <div class="item"></div>
+    <div class="item"></div>
+    <div class="item"></div>
+</div>
diff --git a/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-002.html b/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-002.html
new file mode 100644
index 00000000000..8cad606c6ac
--- /dev/null
+++ b/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-002.html
@@ -0,0 +1,34 @@
+<!DOCTYPE html>
+<title>
+  CSS Gap Decorations: grid column gaps are painted with solid styling.
+</title>
+<link rel="help" href="https://drafts.csswg.org/css-gaps-1/">
+<link rel="match" href="grid-gap-decorations-002-ref.html">
+<link rel="author" title="Sam Davis Omekara Jr." href="mailto:samomekarajr@microsoft.com">
+<style>
+  .grid-container {
+    height: 110px;
+    width: 110px;
+    background-color: green;
+
+    display: grid;
+    grid-template-columns: repeat(2, 1fr);
+
+    column-gap: 10px;
+    row-gap: 10px;
+
+    column-rule-color: pink;
+    column-rule-style: solid;
+    column-rule-width: 10px;
+  }
+
+  .grid-item {
+    background: skyblue;
+  }
+</style>
+<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>
diff --git a/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-003-ref.html b/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-003-ref.html
new file mode 100644
index 00000000000..86796edba42
--- /dev/null
+++ b/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-003-ref.html
@@ -0,0 +1,38 @@
+<!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">
+<style>
+  .container {
+    width: 110px;
+    height: 110px;
+    background-color: green;
+
+    column-count: 2;
+    column-gap: 10px;
+
+    column-rule-color: pink;
+    column-rule-style: dotted;
+    column-rule-width: 10px;
+
+    overflow: hidden;
+  }
+
+  .item {
+    background: skyblue;
+    height: 50px;
+    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: 10px;
+  }
+</style>
+<div class="container">
+    <div class="item"></div>
+    <div class="item"></div>
+    <div class="item"></div>
+    <div class="item"></div>
+</div>
diff --git a/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-003.html b/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-003.html
new file mode 100644
index 00000000000..5e618aae79b
--- /dev/null
+++ b/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-003.html
@@ -0,0 +1,34 @@
+<!DOCTYPE html>
+<title>
+  CSS Gap Decorations: grid column gaps are painted with dotted styling.
+</title>
+<link rel="help" href="https://drafts.csswg.org/css-gaps-1/">
+<link rel="match" href="grid-gap-decorations-003-ref.html">
+<link rel="author" title="Sam Davis Omekara Jr." href="mailto:samomekarajr@microsoft.com">
+<style>
+  .grid-container {
+    height: 110px;
+    width: 110px;
+    background-color: green;
+
+    display: grid;
+    grid-template-columns: repeat(2, 1fr);
+
+    column-gap: 10px;
+    row-gap: 10px;
+
+    column-rule-color: pink;
+    column-rule-style: dotted;
+    column-rule-width: 10px;
+  }
+
+  .grid-item {
+    background: skyblue;
+  }
+</style>
+<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>
diff --git a/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-004-ref.html b/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-004-ref.html
new file mode 100644
index 00000000000..9011957ea4d
--- /dev/null
+++ b/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-004-ref.html
@@ -0,0 +1,38 @@
+<!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">
+<style>
+  .container {
+    width: 110px;
+    height: 110px;
+    background: green;
+
+    column-count: 2;
+    column-gap: 10px;
+
+    column-rule-color: pink;
+    column-rule-style: double;
+    column-rule-width: 10px;
+
+    overflow: hidden;
+  }
+
+  .item {
+    background: skyblue;
+    height: 50px;
+    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: 10px;
+  }
+</style>
+<div class="container">
+    <div class="item"></div>
+    <div class="item"></div>
+    <div class="item"></div>
+    <div class="item"></div>
+</div>
diff --git a/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-004.html b/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-004.html
new file mode 100644
index 00000000000..ab7e5d6695c
--- /dev/null
+++ b/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-004.html
@@ -0,0 +1,35 @@
+<!DOCTYPE html>
+<title>
+  CSS Gap Decorations: grid column gaps are painted with double styling.
+</title>
+<link rel="help" href="https://drafts.csswg.org/css-gaps-1/">
+<link rel="match" href="grid-gap-decorations-004-ref.html">
+<link rel="author" title="Sam Davis Omekara Jr." href="mailto:samomekarajr@microsoft.com">
+<style>
+  .grid-container {
+    height: 110px;
+    width: 110px;
+
+    display: grid;
+    grid-template-columns: repeat(2, 1fr);
+
+    column-gap: 10px;
+    row-gap: 10px;
+
+    background-color: green;
+
+    column-rule-color: pink;
+    column-rule-style: double;
+    column-rule-width: 10px;
+  }
+
+  .grid-item {
+    background: skyblue;
+  }
+</style>
+<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>
diff --git a/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-005-ref.html b/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-005-ref.html
new file mode 100644
index 00000000000..887c9f18f12
--- /dev/null
+++ b/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-005-ref.html
@@ -0,0 +1,38 @@
+<!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">
+<style>
+  .container {
+    width: 110px;
+    height: 110px;
+    background: green;
+
+    column-count: 2;
+    column-gap: 10px;
+
+    column-rule-color: pink;
+    column-rule-style: double;
+    column-rule-width: 5px;
+
+    overflow: hidden;
+  }
+
+  .item {
+    background: skyblue;
+    height: 50px;
+    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: 10px;
+  }
+</style>
+<div class="container">
+    <div class="item"></div>
+    <div class="item"></div>
+    <div class="item"></div>
+    <div class="item"></div>
+</div>
diff --git a/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-005.html b/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-005.html
new file mode 100644
index 00000000000..8a429eea355
--- /dev/null
+++ b/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-005.html
@@ -0,0 +1,35 @@
+<!DOCTYPE html>
+<title>
+  CSS Gap Decorations:  grid column gaps are painted with double styling and specifed width.
+</title>
+<link rel="help" href="https://drafts.csswg.org/css-gaps-1/">
+<link rel="match" href="grid-gap-decorations-005-ref.html">
+<link rel="author" title="Sam Davis Omekara Jr." href="mailto:samomekarajr@microsoft.com">
+<style>
+  .grid-container {
+    height: 110px;
+    width: 110px;
+
+    display: grid;
+    grid-template-columns: repeat(2, 1fr);
+
+    column-gap: 10px;
+    row-gap: 10px;
+
+    background-color: green;
+
+    column-rule-color: pink;
+    column-rule-style: double;
+    column-rule-width: 5px;
+  }
+
+  .grid-item {
+    background: skyblue;
+  }
+</style>
+<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>
diff --git a/tests/wpt/tests/css/css-images/gradient/gradient-eval-predefined-color-spaces-ref.html b/tests/wpt/tests/css/css-images/gradient/gradient-eval-predefined-color-spaces-ref.html
new file mode 100644
index 00000000000..6ead48c4a0d
--- /dev/null
+++ b/tests/wpt/tests/css/css-images/gradient/gradient-eval-predefined-color-spaces-ref.html
@@ -0,0 +1,34 @@
+<!DOCTYPE html>
+<html>
+ <head>
+  <title>Gradient interpolation</title>
+  <link rel="author" title="Aaron Krajeski" href="mailto:aaronhk@chromium.org">
+  <style>
+   .swatch {
+       width: 100px;
+       height: 50px;
+   }
+ </style>
+ </head>
+ <body>
+ </body>
+ <script>
+  // https://www.w3.org/TR/css-color-4/#predefined
+  const COLOR_SPACES = [
+    "srgb",
+    "srgb-linear",
+    "display-p3",
+    "a98-rgb",
+    "prophoto-rgb",
+    "rec2020",
+  ];
+
+  for (cs of COLOR_SPACES) {
+    const swatch = document.createElement("div");
+    document.body.appendChild(swatch);
+    swatch.classList.add("swatch");
+    const grad = `color-mix(in ${cs}, color(srgb 1 0 0), color(srgb 0 1 0))`;
+    swatch.style.backgroundColor = grad;
+  }
+ </script>
+</html>
diff --git a/tests/wpt/tests/css/css-images/gradient/gradient-eval-predefined-color-spaces.html b/tests/wpt/tests/css/css-images/gradient/gradient-eval-predefined-color-spaces.html
new file mode 100644
index 00000000000..c6a88d7af5a
--- /dev/null
+++ b/tests/wpt/tests/css/css-images/gradient/gradient-eval-predefined-color-spaces.html
@@ -0,0 +1,38 @@
+<!DOCTYPE html>
+<html>
+ <head>
+  <title>Gradient interpolation in all predefined color spaces</title>
+  <link rel="author" title="Aaron Krajeski" href="mailto:aaronhk@chromium.org">
+  <link rel="help" href="https://www.w3.org/TR/css-color-4/#interpolation">
+  <meta name="assert" content="Test gradient interpolation in predefined color spaces">
+  <link rel="match" href="gradient-eval-predefined-color-spaces-ref.html">
+  <meta name="fuzzy" content="maxDifference=0-1;totalPixels=0-20000">
+  <style>
+   .swatch {
+       width: 100px;
+       height: 50px;
+   }
+ </style>
+ </head>
+ <body>
+ </body>
+ <script>
+  // https://www.w3.org/TR/css-color-4/#predefined
+  const COLOR_SPACES = [
+    "srgb",
+    "srgb-linear",
+    "display-p3",
+    "a98-rgb",
+    "prophoto-rgb",
+    "rec2020",
+  ];
+
+  for (cs of COLOR_SPACES) {
+    const swatch = document.createElement("div");
+    document.body.appendChild(swatch);
+    swatch.classList.add("swatch");
+    const grad = `linear-gradient(in ${cs}, color(srgb 1 0 0) calc(-1e+08px), color(srgb 0 1 0) calc(1e+08px))`;
+    swatch.style.background = grad;
+  }
+ </script>
+</html>
diff --git a/tests/wpt/tests/css/css-images/gradient/gradient-single-stop-001.html b/tests/wpt/tests/css/css-images/gradient/gradient-single-stop-001.html
index 5292f1909e7..af43fd7e9fc 100644
--- a/tests/wpt/tests/css/css-images/gradient/gradient-single-stop-001.html
+++ b/tests/wpt/tests/css/css-images/gradient/gradient-single-stop-001.html
@@ -8,6 +8,7 @@
     <link rel="help" href="https://drafts.csswg.org/css-images-3/#color-stop-syntax">
     <link rel="help" href="https://drafts.csswg.org/css-images-3/#coloring-gradient-line">
     <meta name="assert" content="Tests that gradient with a single color stop renders the expected solid color">
+    <meta name="fuzzy" content="maxDifference=0-1; totalPixels=0-4500">
     <link rel="match" href="/css/reference/ref-filled-green-100px-square-only.html">
     <style>
         body {
diff --git a/tests/wpt/tests/css/css-images/gradient/gradient-single-stop-002.html b/tests/wpt/tests/css/css-images/gradient/gradient-single-stop-002.html
index 344e70a1779..8721f8d6dd6 100644
--- a/tests/wpt/tests/css/css-images/gradient/gradient-single-stop-002.html
+++ b/tests/wpt/tests/css/css-images/gradient/gradient-single-stop-002.html
@@ -8,6 +8,7 @@
     <link rel="help" href="https://drafts.csswg.org/css-images-3/#color-stop-syntax">
     <link rel="help" href="https://drafts.csswg.org/css-images-3/#coloring-gradient-line">
     <meta name="assert" content="Tests that gradient with a single color stop renders the expected solid color">
+    <meta name="fuzzy" content="maxDifference=0-1; totalPixels=0-4500">
     <link rel="match" href="/css/reference/ref-filled-green-100px-square-only.html">
     <style>
         body {
diff --git a/tests/wpt/tests/css/css-images/gradient/gradient-single-stop-003.html b/tests/wpt/tests/css/css-images/gradient/gradient-single-stop-003.html
index ba779cb3959..39d9761e48b 100644
--- a/tests/wpt/tests/css/css-images/gradient/gradient-single-stop-003.html
+++ b/tests/wpt/tests/css/css-images/gradient/gradient-single-stop-003.html
@@ -8,6 +8,7 @@
     <link rel="help" href="https://drafts.csswg.org/css-images-3/#color-stop-syntax">
     <link rel="help" href="https://drafts.csswg.org/css-images-3/#coloring-gradient-line">
     <meta name="assert" content="Tests that gradient with a single color stop renders the expected solid color">
+    <meta name="fuzzy" content="maxDifference=0-1; totalPixels=0-4500">
     <link rel="match" href="/css/reference/ref-filled-green-100px-square-only.html">
     <style>
         body {
diff --git a/tests/wpt/tests/css/css-images/gradient/gradient-single-stop-004.html b/tests/wpt/tests/css/css-images/gradient/gradient-single-stop-004.html
index fe6d70e23f6..191e906f0e6 100644
--- a/tests/wpt/tests/css/css-images/gradient/gradient-single-stop-004.html
+++ b/tests/wpt/tests/css/css-images/gradient/gradient-single-stop-004.html
@@ -8,6 +8,7 @@
     <link rel="help" href="https://drafts.csswg.org/css-images-3/#color-stop-syntax">
     <link rel="help" href="https://drafts.csswg.org/css-images-3/#coloring-gradient-line">
     <meta name="assert" content="Tests that gradient with a single color stop renders the expected solid color">
+    <meta name="fuzzy" content="maxDifference=0-1; totalPixels=0-4500">
     <link rel="match" href="/css/reference/ref-filled-green-100px-square-only.html">
     <style>
         body {
diff --git a/tests/wpt/tests/css/css-images/gradient/gradient-single-stop-005.html b/tests/wpt/tests/css/css-images/gradient/gradient-single-stop-005.html
index f13cd45ba4d..c3072c75146 100644
--- a/tests/wpt/tests/css/css-images/gradient/gradient-single-stop-005.html
+++ b/tests/wpt/tests/css/css-images/gradient/gradient-single-stop-005.html
@@ -8,6 +8,7 @@
     <link rel="help" href="https://drafts.csswg.org/css-images-3/#color-stop-syntax">
     <link rel="help" href="https://drafts.csswg.org/css-images-3/#coloring-gradient-line">
     <meta name="assert" content="Tests that gradient with a single color stop renders the expected solid color">
+    <meta name="fuzzy" content="maxDifference=0-1; totalPixels=0-4500">
     <link rel="match" href="/css/reference/ref-filled-green-100px-square-only.html">
     <style>
         body {
diff --git a/tests/wpt/tests/css/css-images/gradient/gradient-single-stop-006.html b/tests/wpt/tests/css/css-images/gradient/gradient-single-stop-006.html
index 03c4b5bf1dc..786fa8be1c0 100644
--- a/tests/wpt/tests/css/css-images/gradient/gradient-single-stop-006.html
+++ b/tests/wpt/tests/css/css-images/gradient/gradient-single-stop-006.html
@@ -8,6 +8,7 @@
     <link rel="help" href="https://drafts.csswg.org/css-images-4/#color-stop-syntax">
     <link rel="help" href="https://drafts.csswg.org/css-images-4/#coloring-gradient-line">
     <meta name="assert" content="Tests that gradient with a single color stop renders the expected solid color">
+    <meta name="fuzzy" content="maxDifference=0-1; totalPixels=0-10000">
     <link rel="match" href="/css/reference/ref-filled-green-100px-square-only.html">
     <style>
         body {
diff --git a/tests/wpt/tests/css/css-images/gradient/gradient-single-stop-007.html b/tests/wpt/tests/css/css-images/gradient/gradient-single-stop-007.html
index 9c02f9371e7..b1ef9c42b0a 100644
--- a/tests/wpt/tests/css/css-images/gradient/gradient-single-stop-007.html
+++ b/tests/wpt/tests/css/css-images/gradient/gradient-single-stop-007.html
@@ -8,6 +8,7 @@
     <link rel="help" href="https://drafts.csswg.org/css-images-4/#color-stop-syntax">
     <link rel="help" href="https://drafts.csswg.org/css-images-4/#coloring-gradient-line">
     <meta name="assert" content="Tests that gradient with a single color stop renders the expected solid color">
+    <meta name="fuzzy" content="maxDifference=0-1; totalPixels=0-10000">
     <link rel="match" href="/css/reference/ref-filled-green-100px-square-only.html">
     <style>
         body {
diff --git a/tests/wpt/tests/css/css-images/gradient/gradient-single-stop-008.html b/tests/wpt/tests/css/css-images/gradient/gradient-single-stop-008.html
index c9025ad6c2e..899bf2c7c81 100644
--- a/tests/wpt/tests/css/css-images/gradient/gradient-single-stop-008.html
+++ b/tests/wpt/tests/css/css-images/gradient/gradient-single-stop-008.html
@@ -8,6 +8,7 @@
     <link rel="help" href="https://drafts.csswg.org/css-images-4/#color-stop-syntax">
     <link rel="help" href="https://drafts.csswg.org/css-images-4/#coloring-gradient-line">
     <meta name="assert" content="Tests that gradient with a single color stop renders the expected solid color">
+    <meta name="fuzzy" content="maxDifference=0-1; totalPixels=0-10000">
     <link rel="match" href="/css/reference/ref-filled-green-100px-square-only.html">
     <style>
         body {
diff --git a/tests/wpt/tests/css/css-lists/list-style-position-001-notref.html b/tests/wpt/tests/css/css-lists/list-style-position-001-notref.html
new file mode 100644
index 00000000000..8f3c3dfaa91
--- /dev/null
+++ b/tests/wpt/tests/css/css-lists/list-style-position-001-notref.html
@@ -0,0 +1,28 @@
+<!DOCTYPE HTML>
+<meta charset="utf-8">
+<title>CSS Mismatch Reference Case</title>
+<link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com">
+<link rel="help" href="https://drafts.csswg.org/css-lists-3/#propdef-list-style-position">
+<style>
+  body {
+    /* Increase left margin to ensure we can see the list item's marker. */
+    margin-left: 50px;
+  }
+  .wrapper {
+    border: 2px solid teal;
+    width: max-content;
+    margin-bottom: 2px;
+  }
+</style>
+<div class="wrapper">
+  <!-- In this mismatch-reference-case, we use explicit "inside" for all of
+       the pieces below, because that's how some browsers mistakenly render
+       the corresponding testcase: -->
+  <li style="list-style-position: inside">unspecified</li>
+  <li style="list-style-position: inside">outside</li>
+  <li style="list-style-position: inside">initial</li>
+  <li style="list-style-position: inside">inherit</li>
+  <li style="list-style-position: inside">unset</li>
+  <li style="list-style-position: inside">revert</li>
+  <li style="list-style-position: inside">revert-layer</li>
+</div>
diff --git a/tests/wpt/tests/css/css-lists/list-style-position-001-ref.html b/tests/wpt/tests/css/css-lists/list-style-position-001-ref.html
new file mode 100644
index 00000000000..ef2a03da18d
--- /dev/null
+++ b/tests/wpt/tests/css/css-lists/list-style-position-001-ref.html
@@ -0,0 +1,33 @@
+<!DOCTYPE HTML>
+<meta charset="utf-8">
+<title>CSS Reference Case</title>
+<link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com">
+<style>
+  body {
+    /* Increase left margin to ensure we can see the list item's marker. */
+    margin-left: 50px;
+  }
+  .wrapper {
+    border: 2px solid teal;
+    width: max-content;
+    margin-bottom: 2px;
+  }
+  ul {
+    padding: 0;
+    margin: 0;
+  }
+</style>
+<div class="wrapper">
+  <!-- For this reference case, we just add a <ul> wrapper, which is sufficient
+       to elicit the correct "outside" behavior in browsers that had the bug
+       that we're testing here. -->
+  <ul>
+    <li>unspecified</li>
+    <li>outside</li>
+    <li>initial</li>
+    <li>inherit</li>
+    <li>unset</li>
+    <li>revert</li>
+    <li>revert-layer</li>
+  </ul>
+</div>
diff --git a/tests/wpt/tests/css/css-lists/list-style-position-001.html b/tests/wpt/tests/css/css-lists/list-style-position-001.html
new file mode 100644
index 00000000000..361ca994f76
--- /dev/null
+++ b/tests/wpt/tests/css/css-lists/list-style-position-001.html
@@ -0,0 +1,29 @@
+<!DOCTYPE HTML>
+<meta charset="utf-8">
+<title>CSS Test: 'list-style-position:outside' should be the initial value and should result in 'outside' marker-positioning</title>
+<link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com">
+<link rel="help" href="https://drafts.csswg.org/css-lists-3/#propdef-list-style-position">
+<link rel="match" href="list-style-position-001-ref.html">
+<link rel="mismatch" href="list-style-position-001-notref.html">
+<style>
+  body {
+    /* Increase left margin to ensure we can see the list item's marker. */
+    margin-left: 50px;
+  }
+  .wrapper {
+    border: 2px solid teal;
+    width: max-content;
+    margin-bottom: 2px;
+  }
+</style>
+<div class="wrapper">
+  <!-- The list items below should all render with the same "outside"
+       marker-positioning. -->
+  <li>unspecified</li>
+  <li style="list-style-position: outside">outside</li>
+  <li style="list-style-position: initial">initial</li>
+  <li style="list-style-position: inherit">inherit</li>
+  <li style="list-style-position: unset">unset</li>
+  <li style="list-style-position: revert">revert</li>
+  <li style="list-style-position: revert-layer">revert-layer</li>
+</div>
diff --git a/tests/wpt/tests/css/css-mixins/at-function-cssom.tentative.html b/tests/wpt/tests/css/css-mixins/at-function-cssom.tentative.html
new file mode 100644
index 00000000000..c8c3ee475bf
--- /dev/null
+++ b/tests/wpt/tests/css/css-mixins/at-function-cssom.tentative.html
@@ -0,0 +1,301 @@
+<!DOCTYPE html>
+<title>CSS Custom Functions: CSSOM</title>
+<link rel="help" href="https://drafts.csswg.org/css-mixins-1/#cssom">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+
+<script>
+
+test(t => {
+  let sheet = new CSSStyleSheet();
+  sheet.replaceSync(`
+    @function --foo() {}
+  `);
+  assert_equals(sheet.cssRules.length, 1);
+  let functionRule = sheet.cssRules[0];
+  assert_true(functionRule instanceof CSSFunctionRule);
+  assert_equals(functionRule.cssRules.length, 0);
+}, 'Empty CSSFunctionRule');
+
+test(t => {
+  let sheet = new CSSStyleSheet();
+  sheet.replaceSync(`
+    @function --foo() {
+      result: 100px;
+    }
+  `);
+  assert_equals(sheet.cssRules.length, 1);
+  let functionRule = sheet.cssRules[0];
+  assert_true(functionRule instanceof CSSFunctionRule);
+  assert_equals(functionRule.cssRules.length, 1);
+  let declarationsRule = functionRule.cssRules[0];
+  assert_true(declarationsRule instanceof CSSFunctionDeclarations);
+  let descriptors = declarationsRule.style;
+  assert_true(descriptors instanceof CSSFunctionDescriptors);
+}, 'Single CSSFunctionDeclarations');
+
+test(t => {
+  let sheet = new CSSStyleSheet();
+  sheet.replaceSync(`
+    @function --foo() {
+      result: 100px;
+    }
+  `);
+  let descriptors = sheet.cssRules[0]?.cssRules[0]?.style;
+  assert_true(descriptors instanceof CSSFunctionDescriptors);
+  assert_equals(descriptors.result, '100px');
+}, 'CSSFunctionDescriptors (result)');
+
+test(t => {
+  let sheet = new CSSStyleSheet();
+  sheet.replaceSync(`
+    @function --foo() {
+      result: 100px;
+      result: 101px;
+    }
+  `);
+  let descriptors = sheet.cssRules[0]?.cssRules[0]?.style;
+  assert_true(descriptors instanceof CSSFunctionDescriptors);
+  assert_equals(descriptors.result, '101px');
+}, 'CSSFunctionDescriptors (result, repeated)');
+
+test(t => {
+  let sheet = new CSSStyleSheet();
+  sheet.replaceSync(`
+    @function --foo() {
+      --x: 1px;
+      --y: 2px;
+    }
+  `);
+  let descriptors = sheet.cssRules[0]?.cssRules[0]?.style;
+  assert_true(descriptors instanceof CSSFunctionDescriptors);
+  assert_equals(descriptors.getPropertyValue('--x'), '1px');
+  assert_equals(descriptors.getPropertyValue('--y'), '2px');
+  assert_equals(descriptors.getPropertyValue('--unknown'), '');
+  assert_equals(descriptors.result, '');
+}, 'CSSFunctionDescriptors (local variables)');
+
+test(t => {
+  let sheet = new CSSStyleSheet();
+  sheet.replaceSync(`
+    @function --foo() {
+      --x: 1px;
+      --y: 2px;
+      --x: 3px;
+    }
+  `);
+  let descriptors = sheet.cssRules[0]?.cssRules[0]?.style;
+  assert_true(descriptors instanceof CSSFunctionDescriptors);
+  assert_equals(descriptors.getPropertyValue('--x'), '3px');
+  assert_equals(descriptors.getPropertyValue('--y'), '2px');
+  assert_equals(descriptors.getPropertyValue('--unknown'), '');
+  assert_equals(descriptors.result, '');
+}, 'CSSFunctionDescriptors (local variables, repeated)');
+
+test(t => {
+  let sheet = new CSSStyleSheet();
+  sheet.replaceSync(`
+    @function --foo() {
+      --x: 1px;
+      --y: 2px;
+      result: 3px;
+    }
+  `);
+  let descriptors = sheet.cssRules[0]?.cssRules[0]?.style;
+  assert_true(descriptors instanceof CSSFunctionDescriptors);
+  assert_equals(descriptors.getPropertyValue('--x'), '1px');
+  assert_equals(descriptors.getPropertyValue('--y'), '2px');
+  assert_equals(descriptors.getPropertyValue('--unknown'), '');
+  assert_equals(descriptors.result, '3px');
+}, 'CSSFunctionDescriptors (local variables and result)');
+
+test(t => {
+  let sheet = new CSSStyleSheet();
+  sheet.replaceSync(`
+    @function --foo() {
+      --x: 1px;
+      --y: 2px;
+      result: 3px;
+    }
+  `);
+  let descriptors = sheet.cssRules[0]?.cssRules[0]?.style;
+  assert_true(descriptors instanceof CSSFunctionDescriptors);
+  assert_equals(descriptors.cssText, '--x: 1px; --y: 2px; result: 3px;');
+}, 'CSSFunctionDescriptors serialization');
+
+test(t => {
+  let sheet = new CSSStyleSheet();
+  sheet.replaceSync(`
+    @function --foo() {
+      --x: 1px;
+      syntax: "<length>";
+      --y: 2px;
+      color: red;
+      unknown: unknown;
+      result: 3px;
+    }
+  `);
+  let descriptors = sheet.cssRules[0]?.cssRules[0]?.style;
+  assert_true(descriptors instanceof CSSFunctionDescriptors);
+  assert_equals(descriptors.length, 3);
+  assert_equals(descriptors.cssText, '--x: 1px; --y: 2px; result: 3px;');
+}, 'Unknown descriptors');
+
+test(t => {
+  let sheet = new CSSStyleSheet();
+  sheet.replaceSync(`
+    @function --foo() {
+      --x: 1px;
+    }
+  `);
+  let descriptors = sheet.cssRules[0]?.cssRules[0]?.style;
+  assert_true(descriptors instanceof CSSFunctionDescriptors);
+  assert_equals(descriptors.length, 1);
+  descriptors.cssText = '--x: 1px; color: red; result: 3px; --y: 2px;';
+  assert_equals(descriptors.length, 3);
+  assert_equals(descriptors.cssText, '--x: 1px; result: 3px; --y: 2px;');
+}, 'Unknown descriptors (mutation)');
+
+test(t => {
+  let sheet = new CSSStyleSheet();
+  sheet.replaceSync(`
+    @function --foo() {
+     --x: 1px;
+     result: 2px;
+    }
+  `);
+  let descriptors = sheet.cssRules[0]?.cssRules[0]?.style;
+  assert_true(descriptors instanceof CSSFunctionDescriptors);
+  assert_equals(descriptors.length, 2);
+  assert_equals(descriptors.item(0), '--x');
+  assert_equals(descriptors.item(1), 'result');
+}, 'item()');
+
+// https://webidl.spec.whatwg.org/#dfn-indexed-property-getter
+test(t => {
+  let sheet = new CSSStyleSheet();
+  sheet.replaceSync(`
+    @function --foo() {
+     --x: 1px;
+     result: 2px;
+    }
+  `);
+  let descriptors = sheet.cssRules[0]?.cssRules[0]?.style;
+  assert_true(descriptors instanceof CSSFunctionDescriptors);
+  assert_array_equals(Array.from(descriptors), ['--x', 'result']);;
+}, 'Indexed property getter');
+
+// CSSFunctionRule
+
+test(t => {
+  let sheet = new CSSStyleSheet();
+  sheet.replaceSync(`
+    @function --foo() {}
+  `);
+  assert_equals(sheet.cssRules.length, 1);
+  let functionRule = sheet.cssRules[0];
+  assert_true(functionRule instanceof CSSFunctionRule);
+  assert_equals(functionRule.name, '--foo');
+}, 'CSSFunctionRule.name');
+
+test(t => {
+  let sheet = new CSSStyleSheet();
+  sheet.replaceSync(`
+    @function --f0() {}
+    @function --f1(--x) {}
+    @function --f2(--x <length>) {}
+    @function --f3(--x: 10px) {}
+    @function --f4(--x <length>: 10px) {}
+    @function --f5(--x type(<length> | auto): 10px, --y, --z: red) {}
+  `);
+  assert_equals(sheet.cssRules.length, 6);
+  assert_object_equals(sheet.cssRules[0].getParameters(), []);
+  assert_object_equals(sheet.cssRules[1].getParameters(), [
+    {name: '--x', type: '*'},
+  ]);
+  assert_object_equals(sheet.cssRules[2].getParameters(), [
+    {name: '--x', type: '<length>'},
+  ]);
+  assert_object_equals(sheet.cssRules[3].getParameters(), [
+    {name: '--x', type: '*', defaultValue: '10px'},
+  ]);
+  assert_object_equals(sheet.cssRules[4].getParameters(), [
+    {name: '--x', type: '<length>', defaultValue: '10px'},
+  ]);
+  assert_object_equals(sheet.cssRules[5].getParameters(), [
+    {name: '--x', type: '<length> | auto', defaultValue: '10px'},
+    {name: '--y', type: '*'},
+    {name: '--z', type: '*', defaultValue: 'red'},
+  ], '--f5');
+}, 'CSSFunctionRule.getParameters()');
+
+test(t => {
+  let sheet = new CSSStyleSheet();
+  sheet.replaceSync(`
+    @function --f0() {}
+    @function --f1() returns <length> {}
+    @function --f2() returns <length>+ {}
+    @function --f3() returns type(*) {}
+    @function --f4() returns type(<length> | auto) {}
+  `);
+  assert_equals(sheet.cssRules.length, 5);
+  assert_equals(sheet.cssRules[0]?.returnType, '*');
+  assert_equals(sheet.cssRules[1]?.returnType, '<length>');
+  assert_equals(sheet.cssRules[2]?.returnType, '<length>+');
+  assert_equals(sheet.cssRules[3]?.returnType, '*');
+  assert_equals(sheet.cssRules[4]?.returnType, '<length> | auto');
+}, 'CSSFunctionRule.returnType');
+
+test(t => {
+  let sheet = new CSSStyleSheet();
+  // U+0009 CHARACTER TABULATION
+  sheet.replaceSync(`@function --escaped-\\9 -tab(--param-\\9 -tab) { --local-\\9 -tab: 1px; }`);
+  assert_equals(sheet.cssRules.length, 1);
+  let rule = sheet.cssRules[0];
+  assert_equals(rule.name, '--escaped-\t-tab');
+  assert_equals(rule.getParameters()[0]?.name, '--param-\t-tab');
+  assert_equals(rule.cssRules[0].style.getPropertyValue('--local-\t-tab'), '1px');
+}, 'CSSFunctionRule escapes');
+
+function test_cssText(actual, expected) {
+  expected ??= actual;
+  let name = actual.match(/@function (--[-\w]+)/)[1];
+  test(t => {
+    let sheet = new CSSStyleSheet();
+    sheet.replaceSync(actual);
+    assert_equals(sheet.cssRules[0]?.cssText, expected);
+  }, `CSSFunctionRule.cssText (${name})`);
+}
+
+// The function name is used by the test description; please make sure it's
+// unique among all test_cssText cases.
+test_cssText(`@function --empty() { }`);
+
+test_cssText(`@function --ret-length() returns <length> { }`);
+test_cssText(`@function --ret-length-auto() returns type(<length> | auto) { }`);
+
+test_cssText(`@function --param-single(--x) { }`);
+test_cssText(`@function --param-typed(--x <length>) { }`);
+test_cssText(`@function --param-typed-default(--x <length>: 10px) { }`);
+test_cssText(`@function --param-default(--x: 10px) { }`);
+test_cssText(`@function --param-multi(--x, --y) { }`);
+test_cssText(`@function --param-multi-mixed(--x: 10px, --y, --z <length>) { }`);
+
+test_cssText(`@function --body-result() { result: 10px; }`);
+test_cssText(`@function --body-locals() { --x: 1px; --y: 2px; result: 10px; }`);
+
+// Cases that don't round-trip as-is:
+test_cssText(`@function --param-type-fn(--x type(<length>)) { }`,
+             `@function --param-type-fn(--x <length>) { }`);
+test_cssText(`@function --param-type-fn-uni(--x type(*)) { }`,
+             `@function --param-type-fn-uni(--x) { }`);
+test_cssText(`@function --ret-type-fn() returns type(*) { }`,
+             `@function --ret-type-fn() { }`);
+test_cssText(`@function --ret-type-fn-uni() returns type(*) { }`,
+             `@function --ret-type-fn-uni() { }`);
+test_cssText(`@function --body-result-multi() { result: 10px; result: 20px; }`,
+             `@function --body-result-multi() { result: 20px; }`);
+
+// Escapes (U+0009 CHARACTER TABULATION):
+test_cssText(`@function --escaped-\\9 -tab(--param-\\9 -tab) { --local-\\9 -tab: 1px; }`);
+</script>
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 eb706ee3c99..8213201eff8 100644
--- a/tests/wpt/tests/css/css-mixins/dashed-function-eval.html
+++ b/tests/wpt/tests/css/css-mixins/dashed-function-eval.html
@@ -3,6 +3,7 @@
 <link rel="help" href="https://drafts.csswg.org/css-mixins-1/#substitute-a-dashed-function">
 <script src="/resources/testharness.js"></script>
 <script src="/resources/testharnessreport.js"></script>
+<script src="resources/utils.js"></script>
 
 <div id=target></div>
 <div id=main></div>
@@ -480,17 +481,6 @@
 </template>
 
 
-<!-- Test runner -->
 <script>
-  let templates = document.querySelectorAll('template');
-  for (let template of templates) {
-    test((t) => {
-      t.add_cleanup(() => main.replaceChildren());
-      main.append(template.content.cloneNode(true));
-      let cs = getComputedStyle(target);
-      let actual = cs.getPropertyValue('--actual');
-      let expected = cs.getPropertyValue('--expected');
-      assert_equals(actual, expected);
-    }, template.getAttribute('data-name'));
-  }
+  test_all_templates();
 </script>
diff --git a/tests/wpt/tests/css/css-mixins/local-var-substitution.html b/tests/wpt/tests/css/css-mixins/local-var-substitution.html
new file mode 100644
index 00000000000..2c22cc60565
--- /dev/null
+++ b/tests/wpt/tests/css/css-mixins/local-var-substitution.html
@@ -0,0 +1,73 @@
+<!DOCTYPE html>
+<title>Custom Functions: Local var() substitution</title>
+<link rel="help" href="https://drafts.csswg.org/css-mixins-1/#locally-substitute-a-var">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="resources/utils.js"></script>
+
+<div id=target></div>
+<div id=main></div>
+
+<!-- To pass, a test must produce matching computed values for --actual and
+     --expected on #target. -->
+
+<!-- Fallbacks -->
+
+<template data-name="Fallback directly in result">
+  <style>
+    @function --f() {
+      result: var(--unknown, PASS);
+    }
+    #target {
+      --actual: --f();
+      --expected: PASS;
+    }
+  </style>
+</template>
+
+<template data-name="Fallback via present, but invalid local">
+  <style>
+    @function --f() {
+      --x: var(--unknown);
+      result: var(--x, PASS);
+    }
+    #target {
+      --actual: --f();
+      --expected: PASS;
+    }
+  </style>
+</template>
+
+<template data-name="Fallback is locally resolved (result)">
+  <style>
+    @function --f() {
+      --x: PASS;
+      result: var(--unknown, var(--x));
+    }
+    #target {
+      --x: FAIL;
+      --actual: --f();
+      --expected: PASS;
+    }
+  </style>
+</template>
+
+<template data-name="Fallback is locally resolved (local var)">
+  <style>
+    @function --f() {
+      --y: PASS;
+      --x: var(--unknown, var(--y));
+      result: var(--x);
+    }
+    #target {
+      --x: FAIL1;
+      --Y: FAIL2;
+      --actual: --f();
+      --expected: PASS;
+    }
+  </style>
+</template>
+
+<script>
+  test_all_templates();
+</script>
diff --git a/tests/wpt/tests/css/css-mixins/resources/utils.js b/tests/wpt/tests/css/css-mixins/resources/utils.js
new file mode 100644
index 00000000000..0e196b72573
--- /dev/null
+++ b/tests/wpt/tests/css/css-mixins/resources/utils.js
@@ -0,0 +1,31 @@
+// Looks for <template> elements, and runs each test in turn, for example:
+//
+//  <template data-name="Example test">
+//    <style>
+//      @function --f() returns <length> {
+//        result: calc(1px + 1px);
+//      }
+//      #target {
+//        --actual: --f();
+//        --expected: 2px;
+//      }
+//    </style>
+//  </template>
+//
+// The test passes if the computed value of --actual matches
+// the computed value of --expected on #target.
+//
+// Elements <div id=target> and <div=main> are assumed to exist.
+function test_all_templates() {
+  let templates = document.querySelectorAll('template');
+  for (let template of templates) {
+    test((t) => {
+      t.add_cleanup(() => main.replaceChildren());
+      main.append(template.content.cloneNode(true));
+      let cs = getComputedStyle(target);
+      let actual = cs.getPropertyValue('--actual');
+      let expected = cs.getPropertyValue('--expected');
+      assert_equals(actual, expected);
+    }, template.getAttribute('data-name'));
+  }
+}
diff --git a/tests/wpt/tests/css/css-nesting/nested-error-recovery.html b/tests/wpt/tests/css/css-nesting/nested-error-recovery.html
new file mode 100644
index 00000000000..2e04582dc22
--- /dev/null
+++ b/tests/wpt/tests/css/css-nesting/nested-error-recovery.html
@@ -0,0 +1,57 @@
+<!DOCTYPE html>
+<title>CSS Nesting: Error recovery</title>
+<link rel="help" href="https://drafts.csswg.org/css-nesting-1">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<style>
+  html {
+    z-index: 0;
+
+    error3234 {**** ::}
+
+    #test1 {
+      @media screen {
+        z-index: 1;
+      }
+    }
+
+    { whatever }
+
+    :doesntexist {z-index: 9;}
+
+    #test2 {
+      z-index: 2;
+    }
+
+    #test3 {
+      z-index: 3;
+      @media screen {
+        error3234;
+        { foo }
+        z-index:4;
+      }
+      { foo }
+      z-index: 5;
+    }
+
+  }
+</style>
+
+<div id=test1></div>
+<div id=test2></div>
+<div id=test3></div>
+
+<script>
+  test(() => {
+    assert_equals(getComputedStyle(document.documentElement).zIndex, '0');
+  });
+  test(() => {
+    assert_equals(getComputedStyle(document.getElementById("test1")).zIndex, '1');
+  });
+  test(() => {
+    assert_equals(getComputedStyle(document.getElementById("test2")).zIndex, '2');
+  });
+  test(() => {
+    assert_equals(getComputedStyle(document.getElementById("test3")).zIndex, '5');
+  });
+</script>
diff --git a/tests/wpt/tests/css/css-overflow/line-clamp/block-ellipsis-010.html b/tests/wpt/tests/css/css-overflow/line-clamp/block-ellipsis-010.html
new file mode 100644
index 00000000000..2351a20e8cf
--- /dev/null
+++ b/tests/wpt/tests/css/css-overflow/line-clamp/block-ellipsis-010.html
@@ -0,0 +1,58 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Overflow: block-ellipsis effect on line height</title>
+<link rel="author" title="Andreu Botella" href="mailto:abotella@igalia.com">
+<link rel="help" href="https://drafts.csswg.org/css-overflow-4/#block-ellipsis">
+<link rel="match" href="reference/block-ellipsis-010-ref.html">
+<link rel="match" href="reference/block-ellipsis-010-alt-ref.html">
+<meta name="assert" content="The block overflow ellipsis is wrapped in an anonymous inline that is assigned line-height: 0.">
+<style>
+/* If a line box that has Ahem as its first available font, also has a glyph
+ * from Gentium Plus, assuming no other relevant fonts and line-height: normal,
+ * the line will be ~0.3em taller than it would be if it only had glyphs from
+ * Ahem.
+ *
+ * Since we restrict the Unicode range of Ahem so it doesn't contain the
+ * ellipsis or dot code points, the line-clamp ellipsis will need to be rendered
+ * with Gentium Plus. But since the line-clamp ellipsis has line-height: 0, it
+ * should not grow the height of the line box.
+ */
+@font-face {
+  font-family: "Ahem";
+  src: url("/fonts/Ahem.ttf");
+  unicode-range: U+0000-002D, U+002F-007E;
+}
+@font-face {
+  font-family: "Gentium Plus";
+  src: url("/fonts/GentiumPlus-R.woff");
+}
+
+.container {
+  display: grid;
+  width: 500px;
+  grid-template-columns: 50% 50%;
+  align-items: end;
+  grid-gap: 40px;
+}
+
+.box {
+  background-color: pink;
+  font-family: "Ahem", "Gentium Plus";
+  font-size: 16px;
+}
+.line-clamp {
+  line-clamp: 1;
+}
+</style>
+
+<p>The box in pink at the left should be taller than the right one.</p>
+
+<div class="container">
+  <div class="box">
+    Some content…
+  </div>
+  <div class="box line-clamp">
+    Some content <br>
+    Clamped
+  </div>
+</div>
diff --git a/tests/wpt/tests/css/css-overflow/line-clamp/line-clamp-content-height-with-dynamic-change.html b/tests/wpt/tests/css/css-overflow/line-clamp/line-clamp-content-height-with-dynamic-change.html
index 0b157f86d31..0b67ff0ad4e 100644
--- a/tests/wpt/tests/css/css-overflow/line-clamp/line-clamp-content-height-with-dynamic-change.html
+++ b/tests/wpt/tests/css/css-overflow/line-clamp/line-clamp-content-height-with-dynamic-change.html
@@ -1,7 +1,7 @@
 <!DOCTYPE html>
 <title>CSS Overflow: appending to a box with -webkit-line-clamp</title>
 <link rel="help" href="https://drafts.csswg.org/css-overflow-3/#webkit-line-clamp">
-<link rel="match" href="reference/webkit-line-clamp-dynamic-001-ref.html">
+<link rel="match" href="reference/line-clamp-content-height-with-dynamic-change-ref.html">
 <style>
 #container {
   display: -webkit-box;
diff --git a/tests/wpt/tests/css/css-overflow/line-clamp/reference/block-ellipsis-010-alt-ref.html b/tests/wpt/tests/css/css-overflow/line-clamp/reference/block-ellipsis-010-alt-ref.html
new file mode 100644
index 00000000000..6ab795eb419
--- /dev/null
+++ b/tests/wpt/tests/css/css-overflow/line-clamp/reference/block-ellipsis-010-alt-ref.html
@@ -0,0 +1,42 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Reference</title>
+<style>
+@font-face {
+  font-family: "Ahem";
+  src: url("/fonts/Ahem.ttf");
+  unicode-range: U+0000-002D, U+002F-007E;
+}
+@font-face {
+  font-family: "Gentium Plus";
+  src: url("/fonts/GentiumPlus-R.woff");
+}
+
+.container {
+  display: grid;
+  width: 500px;
+  grid-template-columns: 50% 50%;
+  align-items: end;
+  grid-gap: 40px;
+}
+
+.box {
+  background-color: pink;
+  font-family: "Ahem", "Gentium Plus";
+  font-size: 16px;
+}
+.ellipsis {
+  line-height: 0;
+}
+</style>
+
+<p>The box in pink at the left should be taller than the right one.</p>
+
+<div class="container">
+  <div class="box">
+    Some content…
+  </div>
+  <div class="box">
+    Some content<span class="ellipsis">...</span>
+  </div>
+</div>
diff --git a/tests/wpt/tests/css/css-overflow/line-clamp/reference/block-ellipsis-010-ref.html b/tests/wpt/tests/css/css-overflow/line-clamp/reference/block-ellipsis-010-ref.html
new file mode 100644
index 00000000000..b5f15ca3dcd
--- /dev/null
+++ b/tests/wpt/tests/css/css-overflow/line-clamp/reference/block-ellipsis-010-ref.html
@@ -0,0 +1,42 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Reference</title>
+<style>
+@font-face {
+  font-family: "Ahem";
+  src: url("/fonts/Ahem.ttf");
+  unicode-range: U+0000-002D, U+002F-007E;
+}
+@font-face {
+  font-family: "Gentium Plus";
+  src: url("/fonts/GentiumPlus-R.woff");
+}
+
+.container {
+  display: grid;
+  width: 500px;
+  grid-template-columns: 50% 50%;
+  align-items: end;
+  grid-gap: 40px;
+}
+
+.box {
+  background-color: pink;
+  font-family: "Ahem", "Gentium Plus";
+  font-size: 16px;
+}
+.ellipsis {
+  line-height: 0;
+}
+</style>
+
+<p>The box in pink at the left should be taller than the right one.</p>
+
+<div class="container">
+  <div class="box">
+    Some content…
+  </div>
+  <div class="box">
+    Some content<span class="ellipsis">…</span>
+  </div>
+</div>
diff --git a/tests/wpt/tests/css/css-overflow/line-clamp/line-clamp-content-height-with-dynamic-change-ref.html b/tests/wpt/tests/css/css-overflow/line-clamp/reference/line-clamp-content-height-with-dynamic-change-ref.html
similarity index 100%
rename from tests/wpt/tests/css/css-overflow/line-clamp/line-clamp-content-height-with-dynamic-change-ref.html
rename to tests/wpt/tests/css/css-overflow/line-clamp/reference/line-clamp-content-height-with-dynamic-change-ref.html
diff --git a/tests/wpt/tests/css/css-overflow/root-element-layout-parent-crash.html b/tests/wpt/tests/css/css-overflow/root-element-layout-parent-crash.html
new file mode 100644
index 00000000000..d777d918077
--- /dev/null
+++ b/tests/wpt/tests/css/css-overflow/root-element-layout-parent-crash.html
@@ -0,0 +1,20 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Overflow Test: root element with ::scroll-marker-group and ::scroll-buttons() doesn't crasah</title>
+<link rel="help" href="https://drafts.csswg.org/css-overflow-5/#scroll-buttons">
+<link rel="help" href="https://drafts.csswg.org/css-overflow-5/#scroll-marker-group">
+<style>
+  html {
+    overflow: auto;
+    scroll-marker-group: before;
+  }
+  html::scroll-marker-group {
+    width: 100px;
+    height: 100px;
+  }
+  html::scroll-button(left) {
+    content: "";
+    width: 100px;
+    height: 100px;
+  }
+</style>
diff --git a/tests/wpt/tests/css/css-overflow/scroll-button-activation-content-hit-test.html b/tests/wpt/tests/css/css-overflow/scroll-button-activation-content-hit-test.html
new file mode 100644
index 00000000000..26702bb65f8
--- /dev/null
+++ b/tests/wpt/tests/css/css-overflow/scroll-button-activation-content-hit-test.html
@@ -0,0 +1,63 @@
+<!doctype html>
+<meta charset="utf-8">
+<title>CSS Test: ::scroll-button() activation by clicking on text content area</title>
+<link rel="help" href="https://drafts.csswg.org/css-overflow-5/#scroll-buttons">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<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>
+<style>
+  * {
+    margin: 0;
+    padding: 0;
+  }
+
+  #scroller {
+    width: 600px;
+    height: 300px;
+    overflow: auto;
+    white-space: nowrap;
+  }
+
+  #scroller div {
+    background: green;
+    display: inline-block;
+    width: 600px;
+    height: 270px;
+  }
+
+  #scroller :first-child {
+    background: purple;
+  }
+
+  #scroller::scroll-button(inline-end) {
+    content: ">";
+    font-family: Ahem;
+    background: blue;
+    height: 20px;
+    width: 20px;
+  }
+</style>
+<div id="scroller">
+  <div></div>
+  <div></div>
+</div>
+<script>
+  /*
+    Double click as recommended scroll amount is 85% of the page, so
+    to make sure all browsers reach the end.
+  */
+  promise_test(async t => {
+    actions_promise = new test_driver.Actions()
+    .pointerMove(15, 315)
+    .pointerDown()
+    .pointerUp()
+    .pointerDown()
+    .pointerUp()
+    .send();
+    await actions_promise;
+    assert_equals(scroller.scrollLeft, 604);
+  });
+</script>
diff --git a/tests/wpt/tests/css/css-overflow/scroll-button-universal-before.html b/tests/wpt/tests/css/css-overflow/scroll-button-universal-before.html
new file mode 100644
index 00000000000..df75a469a84
--- /dev/null
+++ b/tests/wpt/tests/css/css-overflow/scroll-button-universal-before.html
@@ -0,0 +1,20 @@
+<!DOCTYPE html>
+<title>CSS Overflow Test: ::scroll-button(*) style should not apply to ::before</title>
+<link rel="help" href="https://drafts.csswg.org/css-overflow-5/#scroll-buttons">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<style>
+  #target::before {
+    color: green;
+    content: " ";
+  }
+  #target::scroll-button(*) {
+    color: red;
+  }
+</style>
+<div id="target"></div>
+<script>
+  test(() => {
+    assert_equals(getComputedStyle(target, "::before").color, "rgb(0, 128, 0)");
+  }, "::before should not pick up style from ::scroll-button(*) rule");
+</script>
diff --git a/tests/wpt/tests/css/css-overflow/scroll-buttons-layout-parent.html b/tests/wpt/tests/css/css-overflow/scroll-buttons-layout-parent.html
new file mode 100644
index 00000000000..f1c012d3182
--- /dev/null
+++ b/tests/wpt/tests/css/css-overflow/scroll-buttons-layout-parent.html
@@ -0,0 +1,35 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Overflow Test: ::scroll-buttons() have correct layout parent</title>
+<link rel="help" href="https://drafts.csswg.org/css-overflow-5/#scroll-buttons">
+<link rel="match" href="../reference/ref-filled-green-100px-square.xht">
+<style>
+  #sc {
+    z-index: 1;
+    overflow: hidden;
+    width: 100px;
+    height: 100px;
+    background: red;
+  }
+  #sc::scroll-button(left) {
+    content: "";
+    border: none;
+    margin-left: -100px;
+    z-index: 2;
+    width: 50px;
+    height: 100px;
+    background: green;
+  }
+  #sc::scroll-button(right) {
+    content: "";
+    border: none;
+    z-index: 2;
+    width: 50px;
+    height: 100px;
+    background: green;
+  }
+</style>
+<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+<div style="display:flex;">
+  <div id="sc"></div>
+</div>
diff --git a/tests/wpt/tests/css/css-overflow/scroll-marker-group-016.html b/tests/wpt/tests/css/css-overflow/scroll-marker-group-016.html
new file mode 100644
index 00000000000..c2c99c66405
--- /dev/null
+++ b/tests/wpt/tests/css/css-overflow/scroll-marker-group-016.html
@@ -0,0 +1,36 @@
+<!DOCTYPE html>
+<title>Absolutely-positioned scroll-marker-group - no size containment implied</title>
+<link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
+<link rel="help" href="https://drafts.csswg.org/css-overflow-5/#scroll-marker-group-property">
+<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/11166#issuecomment-2607753417">
+<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>
+<style>
+  #sc {
+    anchor-name: --a;
+    overflow: hidden;
+    width: 200px;
+    height: 50px;
+    scroll-marker-group: before;
+  }
+  #sc::scroll-marker-group {
+    position: absolute;
+    position-anchor: --a;
+    position-area: bottom center;
+    background: red;
+  }
+  #sc > div::scroll-marker {
+    float: left;
+    content: "";
+    width: 50px;
+    height: 50px;
+    background: green;
+  }
+</style>
+
+<div style="display:flow-root; width:100px; height:100px; background:red;">
+  <div id="sc" style="margin-left:-50px;">
+    <div style="margin:auto; width:100px; height:50px; background:green;"></div>
+    <div></div>
+  </div>
+</div>
diff --git a/tests/wpt/tests/css/css-overflow/scroll-marker-group-017.html b/tests/wpt/tests/css/css-overflow/scroll-marker-group-017.html
new file mode 100644
index 00000000000..54d5bcf178b
--- /dev/null
+++ b/tests/wpt/tests/css/css-overflow/scroll-marker-group-017.html
@@ -0,0 +1,40 @@
+<!DOCTYPE html>
+<title>Absolutely-positioned scroll-marker-group with fixed-positioned scroll markers</title>
+<link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
+<link rel="help" href="https://drafts.csswg.org/css-overflow-5/#scroll-marker-group-property">
+<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/11166#issuecomment-2607753417">
+<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>
+<style>
+  #sc {
+    position: absolute;
+    overflow: hidden;
+    scroll-marker-group: before;
+  }
+  #sc::scroll-marker-group {
+    position: absolute;
+    top: 50px;
+    left: 0px;
+    width: 110px;
+    background: red;
+  }
+  #sc > div::scroll-marker {
+    position: fixed;
+    top: 0;
+    content: "";
+    width: 50px;
+    height: 50px;
+    background: green;
+  }
+  #sc > div:last-child::scroll-marker {
+    right: 10px;
+  }
+</style>
+
+<div style="position:relative; width:100px; height:100px; background:red;">
+  <div style="height:50px; background:green;"></div>
+  <div id="sc">
+    <div></div>
+    <div></div>
+  </div>
+</div>
diff --git a/tests/wpt/tests/css/css-overflow/scroll-marker-group-keeps-active-in-view-ref.html b/tests/wpt/tests/css/css-overflow/scroll-marker-group-keeps-active-in-view-ref.html
new file mode 100644
index 00000000000..3618d8a5f86
--- /dev/null
+++ b/tests/wpt/tests/css/css-overflow/scroll-marker-group-keeps-active-in-view-ref.html
@@ -0,0 +1,99 @@
+<!DOCTYPE html>
+<html>
+  <body>
+    <style>
+    .scroller {
+      height: 500px;
+      width: 80vw;
+      border: solid 1px;
+      overflow-x: scroll;
+      justify-self: center;
+      white-space: nowrap;
+      padding-top: 50px;
+      scroll-behavior: smooth;
+      scroll-snap-type: x mandatory;
+      direction: rtl;
+      counter-set: markeridx -1;
+    }
+
+    .scroll-marker-group {
+      border: solid 1px black;
+      border-radius: 10px 10px 10px 10px;
+      height: 40px;
+      width: 200px;
+      display: grid;
+      grid-auto-flow: column;
+      justify-self: center;
+      overflow-x: scroll;
+      white-space: nowrap;
+      direction: rtl;
+    }
+
+    .box {
+      height: 400px;
+      width: 40%;
+      border: 1px solid;
+      display: inline-block;
+      margin-left: 50px;
+      margin-right: 50px;
+      scroll-snap-align: center;
+      align-content: center;
+      text-align: center;
+      &::scroll-marker:target-current {
+        background-color: green;
+      }
+    }
+
+    .scroll-marker {
+      content: counter(markeridx);
+      counter-increment: markeridx;
+      width: 20px;
+      height: 20px;
+      background-color: red;
+      border-radius: 50%;
+      text-align: center;
+    }
+
+    .green {
+      background-color: green
+    }
+
+    </style>
+    <div class="scroller" id="carousel">
+      <div class="box" id="box15"><p>15</p></div>
+      <div class="box" id="box14"><p>14</p></div>
+      <div class="box" id="box13"><p>13</p></div>
+      <div class="box" id="box12"><p>12</p></div>
+      <div class="box" id="box11"><p>11</p></div>
+      <div class="box" id="box10"><p>10</p></div>
+      <div class="box" id="box9"><p>9</p></div>
+      <div class="box" id="box7"><p>7</p></div>
+      <div class="box" id="box8"><p>8</p></div>
+      <div class="box" id="box6"><p>6</p></div>
+      <div class="box" id="box5"><p>5</p></div>
+      <div class="box" id="box4"><p>4</p></div>
+      <div class="box" id="box3"><p>3</p></div>
+      <div class="box" id="box2"><p>2</p></div>
+      <div class="box" id="box1"><p>1</p></div>
+      <div class="box" id="box0"><p>0</p></div>
+    </div>
+    <div class="scroll-marker-group" id="marker-group">
+      <div class="scroll-marker green" id="marker15">15</div>
+      <div class="scroll-marker" id="marker14">14</div>
+      <div class="scroll-marker" id="marker13">13</div>
+      <div class="scroll-marker" id="marker12">12</div>
+      <div class="scroll-marker" id="marker11">11</div>
+      <div class="scroll-marker" id="marker10">10</div>
+      <div class="scroll-marker" id="marker9">9</div>
+      <div class="scroll-marker" id="marker8">8</div>
+      <div class="scroll-marker" id="marker7">7</div>
+      <div class="scroll-marker" id="marker6">6</div>
+      <div class="scroll-marker" id="marker5">5</div>
+      <div class="scroll-marker" id="marker4">4</div>
+      <div class="scroll-marker" id="marker3">3</div>
+      <div class="scroll-marker" id="marker2">2</div>
+      <div class="scroll-marker" id="marker1">1</div>
+      <div class="scroll-marker" id="marker0">0</div>
+    </div>
+  </body>
+</html>
diff --git a/tests/wpt/tests/css/css-overflow/scroll-marker-group-keeps-active-in-view.html b/tests/wpt/tests/css/css-overflow/scroll-marker-group-keeps-active-in-view.html
new file mode 100644
index 00000000000..e2081d4d2a3
--- /dev/null
+++ b/tests/wpt/tests/css/css-overflow/scroll-marker-group-keeps-active-in-view.html
@@ -0,0 +1,91 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+  <head>
+    <title>CSS Test: scroll tracking for ::scroll-markers when scroll-marker-group is scrollable </title>
+    <link rel="help" href="https://drafts.csswg.org/css-overflow-5/#active-scroll-marker">
+    <link rel="match" href="scroll-marker-group-keeps-active-in-view-ref.html">
+    <script src="/css/css-transitions/support/helper.js"></script>
+    <script src="/dom/events/scrolling/scroll_support.js"></script>
+    <script src="/common/reftest-wait.js"></script>
+  </head>
+  <body>
+    <style>
+    .scroller {
+      height: 500px;
+      width: 80vw;
+      border: solid 1px;
+      overflow-x: scroll;
+      justify-self: center;
+      white-space: nowrap;
+      padding-top: 50px;
+      scroll-snap-type: x mandatory;
+      scroll-marker-group: after;
+      &::scroll-marker-group {
+        border: solid 1px black;
+        border-radius: 10px 10px 10px 10px;
+        height: 40px;
+        width: 200px;
+        display: grid;
+        grid-auto-flow: column;
+        justify-self: center;
+        overflow-x: scroll;
+        white-space: nowrap;
+      }
+      counter-set: markeridx -1;
+    }
+
+    .box {
+      height: 400px;
+      width: 40%;
+      border: 1px solid;
+      display: inline-block;
+      margin-left: 50px;
+      margin-right: 50px;
+      scroll-snap-align: center;
+      align-content: center;
+      text-align: center;
+      &::scroll-marker {
+        content: counter(markeridx);
+        counter-increment: markeridx;
+        width: 20px;
+        height: 20px;
+        background-color: red;
+        border-radius: 50%;
+      }
+      &::scroll-marker:target-current {
+        background-color: green;
+      }
+    }
+
+    </style>
+    <div class="scroller" id="carousel">
+      <div class="box" id="box0"><p>0</p></div>
+      <div class="box" id="box1"><p>1</p></div>
+      <div class="box" id="box2"><p>2</p></div>
+      <div class="box" id="box3"><p>3</p></div>
+      <div class="box" id="box4"><p>4</p></div>
+      <div class="box" id="box5"><p>5</p></div>
+      <div class="box" id="box6"><p>6</p></div>
+      <div class="box" id="box7"><p>7</p></div>
+      <div class="box" id="box8"><p>8</p></div>
+      <div class="box" id="box9"><p>9</p></div>
+      <div class="box" id="box10"><p>10</p></div>
+      <div class="box" id="box11"><p>11</p></div>
+      <div class="box" id="box12"><p>12</p></div>
+      <div class="box" id="box13"><p>13</p></div>
+      <div class="box" id="box14"><p>14</p></div>
+      <div class="box" id="box15"><p>15</p></div>
+    </div>
+    <script>
+      async function runTest() {
+        const scrollend_promise =
+          waitForScrollEndFallbackToDelayWithoutScrollEvent(carousel);
+        // Scroll to the max horizontal offset.
+        carousel.scrollLeft = carousel.scrollWidth;
+        await scrollend_promise;
+        takeScreenshot();
+      }
+      waitForCompositorReady().then(runTest);
+    </script>
+  </body>
+</html>
diff --git a/tests/wpt/tests/css/css-overflow/scroll-marker-group-layout-parent.html b/tests/wpt/tests/css/css-overflow/scroll-marker-group-layout-parent.html
new file mode 100644
index 00000000000..c3ff8419ee6
--- /dev/null
+++ b/tests/wpt/tests/css/css-overflow/scroll-marker-group-layout-parent.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Overflow Test: ::scroll-marker-group has correct layout parent</title>
+<link rel="help" href="https://drafts.csswg.org/css-overflow-5/#scroll-marker-group">
+<link rel="match" href="../reference/ref-filled-green-100px-square.xht">
+<style>
+  #sc {
+    z-index: 1;
+    overflow: hidden;
+    scroll-marker-group: before;
+    margin-left: -100px;
+    width: 100px;
+    height: 100px;
+    background: red;
+  }
+  #sc::scroll-marker-group {
+    z-index: 2;
+    width: 100px;
+    height: 100px;
+    background: green;
+  }
+</style>
+<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+<div style="display:flex;">
+  <div id="sc"></div>
+</div>
diff --git a/tests/wpt/tests/css/css-overflow/scroll-marker-selection-picks-closest.html b/tests/wpt/tests/css/css-overflow/scroll-marker-selection-picks-closest.html
new file mode 100644
index 00000000000..e0e46ba1d42
--- /dev/null
+++ b/tests/wpt/tests/css/css-overflow/scroll-marker-selection-picks-closest.html
@@ -0,0 +1,146 @@
+<!DOCTYPE html>
+<html>
+
+<head>
+  <meta charset="utf-8">
+  <title>CSS Test: selection of scroll-markers picks closest</title>
+  <link rel="help" href="https://drafts.csswg.org/css-overflow-5/#scroll-marker-pseudo">
+  <script src="/resources/testharness.js"></script>
+  <script src="/resources/testharnessreport.js"></script>
+  <script src="/dom/events/scrolling/scroll_support.js"></script>
+  <script src="/css/css-overflow/support/scroll-marker-support.js"></script>
+</head>
+
+<body>
+  <style>
+    .wrapper {
+      display: grid;
+      justify-content: center;
+    }
+
+    .carousel {
+      display: grid;
+      grid-auto-flow: column;
+      width: 512px;
+      height: 512px;
+      overflow-x: scroll;
+      list-style-type: none;
+      border: solid 2px grey;
+      padding-top: 10%;
+      text-align: center;
+      counter-set: markeridx -1;
+
+        &>.item {
+          height: 80%;
+          width: 510px;
+          border: 1px solid;
+          place-content: center;
+
+          &::scroll-marker {
+            content: counter(markeridx);
+            counter-increment: markeridx;
+            align-content: center;
+            text-align: center;
+            width: 35px;
+            height: 35px;
+            border: 3px solid gray;
+            border-radius: 50%;
+            margin: 3px;
+            background-color: red;
+          }
+
+          &::scroll-marker:target-current {
+            background-color: green;
+          }
+       }
+
+      scroll-marker-group: after;
+
+      &::scroll-marker-group {
+        height: 45px;
+        display: flex;
+        align-items: center;
+        justify-content: center;
+        border: solid 1px black;
+        border-radius: 30px;
+      }
+    }
+  </style>
+  <div class="wrapper" id="wrapper">
+    <div class="carousel" id="carousel">
+      <div class="item" id="item0" tabindex=0><p>0</p></div>
+      <div class="item" id="item1" tabindex=0><p>1</p></div>
+      <div class="item" id="item2" tabindex=0><p>2</p></div>
+      <div class="item" id="item3" tabindex=0><p>3</p></div>
+    </div>
+  </div>
+  <script>
+
+    const carousel = document.getElementById("carousel");
+    const items = document.querySelectorAll(".item");
+    const wrapper = document.getElementById("wrapper");
+
+    RED = "rgb(255, 0, 0)";
+    GREEN = "rgb(0, 128, 0)";
+
+    const max_scroll_offset = carousel.scrollWidth - carousel.clientWidth;
+    async function testActiveMarker(test, scroll_position, expected_idx) {
+      await waitForCompositorCommit();
+      if (carousel.scrollLeft !== scroll_position) {
+        await waitForScrollReset(test, carousel, scroll_position);
+      }
+      verifySelectedMarker(expected_idx, items, GREEN, RED);
+    }
+
+    const SCROLL_OFFSET_EPSILON = 5;
+    promise_test(async(t) => {
+      await testActiveMarker(t, 0, 0);
+    }, "scroll-marker 0 selected at scrollLeft = 0");
+
+    promise_test(async(t) => {
+      // Scrolling to just before halfway into item0, scroll-marker 0 should
+      // be selected.
+      const scroll_position = item0.offsetWidth / 2 - SCROLL_OFFSET_EPSILON;
+      await testActiveMarker(t, scroll_position, 0);
+    }, "scroll-marker 0 selected just before mid point of item0");
+
+    promise_test(async(t) => {
+      // Scrolling to just after halfway into item0, scroll-marker 1 should
+      // be selected.
+      const scroll_position = item0.offsetWidth / 2 + SCROLL_OFFSET_EPSILON;
+      await testActiveMarker(t, scroll_position, 1);
+    }, "scroll-marker 1 selected just after mid point of item0");
+
+    promise_test(async(t) => {
+      // Scrolling to left edge of item1, scroll-marker 1 should
+      // be selected.
+      const scroll_position = item0.offsetWidth;
+      await testActiveMarker(t, scroll_position, 1);
+    }, "scroll-marker 1 selected at left edge of item1");
+
+    promise_test(async (t) => {
+      // Scrolling to just before halfway into item1, scroll-marker 1 should
+      // be selected.
+      const scroll_position = item0.offsetWidth + item1.offsetWidth / 2
+        - SCROLL_OFFSET_EPSILON;
+      await testActiveMarker(t, scroll_position, 1);
+    }, "scroll-marker 1 selected just before mid point of item1");
+
+    promise_test(async(t) => {
+      // Scrolling to just after halfway into item1, scroll-marker 2 should
+      // be selected.
+      const scroll_position = item0.offsetWidth + item1.offsetWidth / 2
+        + SCROLL_OFFSET_EPSILON;
+      await testActiveMarker(t, scroll_position, 2);
+    }, "scroll-marker 2 selected just after mid point of item1");
+
+    promise_test(async(t) => {
+      // Scrolling to left edge of item2, scroll-marker 2 should
+      // be selected.
+      const scroll_position = item0.offsetWidth + item1.offsetWidth;
+      await testActiveMarker(t, scroll_position, 2);
+    }, "scroll-marker 2 selected just at left edge of item2");
+  </script>
+</body>
+
+</html>
diff --git a/tests/wpt/tests/css/css-overflow/scroll-markers-updated-by-programmatic-scroll.html b/tests/wpt/tests/css/css-overflow/scroll-markers-updated-by-programmatic-scroll.html
new file mode 100644
index 00000000000..2df0ba4e494
--- /dev/null
+++ b/tests/wpt/tests/css/css-overflow/scroll-markers-updated-by-programmatic-scroll.html
@@ -0,0 +1,142 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Test: scroll tracking for ::scroll-marker </title>
+<link rel="help" href="https://drafts.csswg.org/css-overflow-5/#scroll-container-scroll">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/css-transitions/support/helper.js"></script>
+<script src="/dom/events/scrolling/scroll_support.js"></script>
+<style>
+  #scroller {
+    overflow: scroll;
+    scroll-marker-group: before;
+    height: 100px;
+    scroll-behavior: smooth;
+    background-color: purple;
+    border: solid 1px black;
+  }
+
+  #scroller::scroll-marker-group {
+    border: 3px solid black;
+    display: flex;
+    width: 100px;
+    height: 20px;
+  }
+
+  #scroller div {
+    width: 100px;
+    height: 100px;
+  }
+
+  #scroller div::scroll-marker {
+    content: '';
+    background-color: red;
+    display: inline-flex;
+    width: 10px;
+    height: 10px;
+    border-radius: 50%;
+  }
+
+  #scroller div::scroll-marker:target-current {
+    background-color: green;
+  }
+</style>
+<div id='scroller'>
+  <div id="initial"></div>
+  <div class="inbetween"></div>
+  <div class="inbetween"></div>
+  <div class="inbetween"></div>
+  <div id='target'></div>
+</div>
+<script>
+  const inbetweens = scroller.querySelectorAll(".inbetween");
+  const GREEN = "rgb(0, 128, 0)";
+  const RED = "rgb(255, 0, 0)";
+
+  function assertPseudoElementProperty(originatingElement, pseudoType, backgroundColor) {
+    const pseudoStyle = getComputedStyle(originatingElement, pseudoType);
+    const pseudoBackgroundColor = pseudoStyle.getPropertyValue('background-color');
+    assert_equals(pseudoBackgroundColor, backgroundColor, pseudoType +
+      " background-color should be " + backgroundColor.toString() +
+      " but was " + pseudoBackgroundColor.toString());
+  }
+
+  let marker_change_observed = false;
+  function watchFrames() {
+    const initialPseudoStyle = getComputedStyle(initial, "::scroll-marker");
+    const initialPseudoBackgroundColor =
+      initialPseudoStyle.getPropertyValue('background-color');
+
+    if (initialPseudoBackgroundColor === RED) {
+      marker_change_observed = true;
+    } else {
+      assert_false(marker_change_observed);
+      assert_equals(initialPseudoBackgroundColor, GREEN,
+        "initial scroll-marker is initially green");
+    }
+
+    // All the markers in between should always be red.
+    for (const inbetween of inbetweens) {
+      assertPseudoElementProperty(inbetween, "::scroll-marker", RED);
+    }
+
+    // target should become and stay the selected scroll-marker.
+    assertPseudoElementProperty(target, "::scroll-marker",
+      marker_change_observed ? GREEN : RED);
+
+    requestAnimationFrame(watchFrames);
+  }
+
+  function scrollPromise() {
+    return new Promise((resolve) => {
+      // For browsers that don't support the scrollend event, just wait till
+      // at least half the expected scroll is done.
+      if (document.scrollingElement.onscrollend === undefined) {
+        function scrollListener() {
+          const max_scroll_offset =
+            scroller.scrollHeight - scroller.ClientHeight;
+          if (scroller.scrollTop >= max_scroll_offset / 2) {
+            scroller.removeEventListener(scrollListener);
+            resolve();
+          }
+        }
+        scroller.addEventListener("scroll", scrollListener);
+      } else {
+        function scrollEndListener() {
+          scroller.removeEventListener("scrollend", scrollEndListener);
+          resolve();
+        }
+        scroller.addEventListener("scrollend", scrollEndListener);
+      }
+    });
+  };
+
+  promise_test(async (t) => {
+    await waitForAnimationFrames(2);
+    assertPseudoElementProperty(initial, "::scroll-marker", GREEN);
+    assertPseudoElementProperty(target, "::scroll-marker", RED);
+
+    function changeDivWidths() {
+      const WIDTH1 = "100px";
+      const WIDTH2 = "200px";
+      const divs = scroller.querySelectorAll("div");
+      const current_width = divs[0].style.width;
+      const target_width = current_width === WIDTH1 ? WIDTH2 : WIDTH1;
+      divs.forEach(div => { div.style.width = target_width; });
+    }
+
+    // Add a scroll listener which will trigger a layout change.
+    // Despite the layout change, the user agent should only select
+    // the eventual scroll position of the ongoing smooth scrollIntoView.
+    scroller.addEventListener("scroll", changeDivWidths);
+
+    const scroll_promise = scrollPromise();
+    watchFrames();
+    target.scrollIntoView({ behavior: "smooth" });
+    await scroll_promise;
+
+    assertPseudoElementProperty(initial, "::scroll-marker", RED);
+    assertPseudoElementProperty(target, "::scroll-marker", GREEN);
+  }, "The selected ::scroll-marker is updated using the eventual scroll " +
+  "position for a programmatic scroll");
+</script>
\ No newline at end of file
diff --git a/tests/wpt/tests/css/css-paint-api/registered-property-value-003.https.html b/tests/wpt/tests/css/css-paint-api/registered-property-value-003.https.html
index b9c3bf3fd90..eb78160a49b 100644
--- a/tests/wpt/tests/css/css-paint-api/registered-property-value-003.https.html
+++ b/tests/wpt/tests/css/css-paint-api/registered-property-value-003.https.html
@@ -16,9 +16,9 @@
         inherits: false
       });
 
-      target.style.setProperty('--prop', 'if(){}');
+      target.style.setProperty('--prop', 'foo(){}');
 
-      expectWorkletValue(target, '--prop', '[CSSUnparsedValue if(){}]');
+      expectWorkletValue(target, '--prop', '[CSSUnparsedValue foo(){}]');
     } catch(e) {
       document.body.textContent = e;
       takeScreenshot();
diff --git a/tests/wpt/tests/css/css-properties-values-api/at-property.html b/tests/wpt/tests/css/css-properties-values-api/at-property.html
index f472e2ce0c4..54b6bae0f90 100644
--- a/tests/wpt/tests/css/css-properties-values-api/at-property.html
+++ b/tests/wpt/tests/css/css-properties-values-api/at-property.html
@@ -141,7 +141,7 @@ test_descriptor('initial-value', '10px');
 test_descriptor('initial-value', 'rgb(1, 2, 3)');
 test_descriptor('initial-value', 'red');
 test_descriptor('initial-value', 'foo');
-test_descriptor('initial-value', 'if(){}');
+test_descriptor('initial-value', 'foo(){}');
 
 // initial-value: not computationally independent
 test_descriptor('initial-value', '3em', null, {'syntax': '"<length>"'});
@@ -191,7 +191,7 @@ function test_not_applied(syntax, initial, inherits) {
 }
 
 // syntax, initialValue, inherits, expected
-test_applied('*', 'if(){}', false, 'if(){}');
+test_applied('*', 'foo(){}', false, 'foo(){}');
 test_applied('<angle>', '42deg', false, '42deg');
 test_applied('<angle>', '1turn', false, '360deg');
 test_applied('<color>', 'green', false, 'rgb(0, 128, 0)');
diff --git a/tests/wpt/tests/css/css-pseudo/highlight-cascade/highlight-cascade-008.html b/tests/wpt/tests/css/css-pseudo/highlight-cascade/highlight-cascade-008.html
index 720e2f0469d..00b35a72a66 100644
--- a/tests/wpt/tests/css/css-pseudo/highlight-cascade/highlight-cascade-008.html
+++ b/tests/wpt/tests/css/css-pseudo/highlight-cascade/highlight-cascade-008.html
@@ -11,7 +11,7 @@
     --background-color: green;
     --decoration-color: yellow;
   }
-  ::selection {
+  :root::selection {
     --background-color: cyan;
     --decoration-color: magenta;
   }
@@ -22,10 +22,10 @@
     text-decoration-color: var(--decoration-color, red);
   }
   span {
-    --background-color: blue;
+    --background-color: purple;
   }
   span::selection {
-    --background-color: purple;
+    --background-color: blue;
     background-color: var(--background-color, red);
   }
 </style>
diff --git a/tests/wpt/tests/css/css-pseudo/highlight-cascade/highlight-cascade-009.html b/tests/wpt/tests/css/css-pseudo/highlight-cascade/highlight-cascade-009.html
index e95de9a7815..f063c11d217 100644
--- a/tests/wpt/tests/css/css-pseudo/highlight-cascade/highlight-cascade-009.html
+++ b/tests/wpt/tests/css/css-pseudo/highlight-cascade/highlight-cascade-009.html
@@ -4,17 +4,17 @@
 <link rel="author" title="Stephen Chenney" href="mailto:schenney@chromium.org">
 <link rel="help" href="https://drafts.csswg.org/css-pseudo-4/#highlight-cascade">
 <link rel="help" href="https://github.com/w3c/csswg-drafts/issues/6641">
-<meta name="assert" content="This test verifies that custom properties used in highlight pseudos are taken from the originating element.">
+<meta name="assert" content="This test verifies that custom properties used in highlight pseudos are taken from the highlight and originating element.">
 <script src="../support/selections.js"></script>
 <link rel="stylesheet" href="../support/highlights.css">
 <script src="/resources/testharness.js"></script>
 <script src="/resources/testharnessreport.js"></script>
 <style>
-  :root {
+  body {
     --background-color: green;
     --decoration-color: green;
   }
-  ::selection {
+  body::selection {
     --decoration-color: purple;
   }
   div::selection {
@@ -28,14 +28,17 @@
 <script>
     selectNodeContents(document.querySelector("body"));
 
+    const div_style = getComputedStyle(document.querySelector("div"));
     const body_selection = getComputedStyle(document.querySelector("body"), "::selection");
     const div_selection = getComputedStyle(document.querySelector("div"), "::selection");
     test(() => void assert_equals(body_selection.getPropertyValue("--background-color"), "green"),
         "body ::selection uses the originating custom property");
-    test(() => void assert_equals(body_selection.getPropertyValue("--decoration-color"), "green"),
+    test(() => void assert_equals(body_selection.getPropertyValue("--decoration-color"), "purple"),
         "body ::selection does not use its own custom property");
     test(() => void assert_equals(div_selection.getPropertyValue("--decoration-color"), "green"),
         "div::selection uses the originating element custom property");
-    test(() => void assert_equals(div_selection.getPropertyValue("--background-color"), "green"),
+    test(() => void assert_equals(div_selection.getPropertyValue("--background-color"), "blue"),
         "div::selection does not use its own custom property");
+    test(() => void assert_equals(div_style.getPropertyValue("--background-color"), "green"),
+        "div::selection properties are not present on the originating element");
 </script>
diff --git a/tests/wpt/tests/css/css-pseudo/highlight-cascade/highlight-cascade-011.html b/tests/wpt/tests/css/css-pseudo/highlight-cascade/highlight-cascade-011.html
new file mode 100644
index 00000000000..89f20048585
--- /dev/null
+++ b/tests/wpt/tests/css/css-pseudo/highlight-cascade/highlight-cascade-011.html
@@ -0,0 +1,31 @@
+<!doctype html>
+<meta charset="utf-8">
+<title>CSS Pseudo-Elements Test: highlight cascade: inheritance of custom properties</title>
+<link rel="author" title="Stephen Chenney" href="mailto:schenney@chromium.org">
+<link rel="help" href="https://drafts.csswg.org/css-pseudo-4/#highlight-cascade">
+<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/6641">
+<meta name="assert" content="This test verifies that custom properties used in highlight pseudos are taken from the highlight and originating element.">
+<script src="../support/selections.js"></script>
+<link rel="stylesheet" href="../support/highlights.css">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<style>
+  :root::selection {
+    --background-color: red;
+  }
+  div::selection {
+    background-color: var(--background-color, green);
+  }
+</style>
+<body>
+  <div>Some text</div>
+</body>
+<script>
+    selectNodeContents(document.querySelector("body"));
+
+    const div_selection = getComputedStyle(document.querySelector("div"), "::selection");
+    test(() => void assert_equals(div_selection.backgroundColor, "rgb(0, 128, 0)"),
+        "div::selection does not inherit custom properties from the highlight parent");
+    test(() => void assert_equals(div_selection.getPropertyValue("--background-color"), ""),
+        "--background-color has no computed value on div::selection");
+</script>
diff --git a/tests/wpt/tests/css/css-pseudo/highlight-painting-001.html b/tests/wpt/tests/css/css-pseudo/highlight-painting-001.html
index ef253e6117c..1263be8f887 100644
--- a/tests/wpt/tests/css/css-pseudo/highlight-painting-001.html
+++ b/tests/wpt/tests/css/css-pseudo/highlight-painting-001.html
@@ -7,6 +7,7 @@
 <link rel="help" href="https://www.w3.org/TR/CSS22/zindex.html#painting-order">
 <link rel="match" href="highlight-painting-001-ref.html">
 <meta name="assert" value="::selection overlay is painted in the correct order, including both the element’s shadows and the highlight’s shadows">
+<meta name="fuzzy" content="maxDifference=0-23;totalPixels=0-3">
 <script src="support/selections.js"></script>
 <link rel="stylesheet" href="support/highlights.css">
 <style>
diff --git a/tests/wpt/tests/css/css-pseudo/highlight-styling-001.html b/tests/wpt/tests/css/css-pseudo/highlight-styling-001.html
index 7fe76d19380..2a7bb3967af 100644
--- a/tests/wpt/tests/css/css-pseudo/highlight-styling-001.html
+++ b/tests/wpt/tests/css/css-pseudo/highlight-styling-001.html
@@ -4,18 +4,19 @@
 <link rel="author" title="Delan Azabani" href="mailto:dazabani@igalia.com">
 <link rel="help" href="https://drafts.csswg.org/css-pseudo-4/#highlight-styling">
 <link rel="match" href="highlight-styling-001-ref.html">
-<meta name="assert" value="This test verifies that ::selection styles cannot set custom properties.">
+<meta name="assert" value="This test verifies that ::selection styles can set custom properties and they over-ride the originating element.">
 <script src="support/selections.js"></script>
 <link rel="stylesheet" href="support/highlights.css">
 <style>
     main {
+        --x: red;
         font-size: 7em;
         margin: 0.5em;
     }
     main::selection {
-        --x: red;
+        --x: green;
         color: white;
-        background-color: var(--x, green);
+        background-color: var(--x, blue);
     }
 </style>
 <p>Test passes if the text below is white on green.
diff --git a/tests/wpt/tests/css/css-scoping/slotted-has-001.html b/tests/wpt/tests/css/css-scoping/slotted-has-001.html
new file mode 100644
index 00000000000..f70bac7eca3
--- /dev/null
+++ b/tests/wpt/tests/css/css-scoping/slotted-has-001.html
@@ -0,0 +1,26 @@
+<!doctype html>
+<meta charset="utf-8">
+<title>:has-slotted</title>
+<link rel="help" href="https://github.com/w3c/csswg-drafts/pull/10586">
+<link rel="match" href="/css/reference/ref-filled-green-100px-square-only.html">
+<p>Test passes if there is a filled green square.</p>
+<div id="host">
+    <template shadowrootmode="open">
+      <style>
+        slot {
+          display: block;
+          width: 100px;
+          height: 100px;
+          background-color: red;
+        }
+        ::slotted(:has(:first-child)) {
+          display: block;
+          width: 100px;
+          height: 100px;
+          background-color: green;
+        }
+      </style>
+      <slot></slot>
+    </template>
+    <div><div></div></div>
+</div>
\ No newline at end of file
diff --git a/tests/wpt/tests/css/css-scoping/slotted-has-002.html b/tests/wpt/tests/css/css-scoping/slotted-has-002.html
new file mode 100644
index 00000000000..9ecbea5d413
--- /dev/null
+++ b/tests/wpt/tests/css/css-scoping/slotted-has-002.html
@@ -0,0 +1,26 @@
+<!doctype html>
+<meta charset="utf-8">
+<title>:has-slotted</title>
+<link rel="help" href="https://github.com/w3c/csswg-drafts/pull/10586">
+<link rel="match" href="/css/reference/ref-filled-green-100px-square-only.html">
+<p>Test passes if there is a filled green square.</p>
+<div id="host">
+    <template shadowrootmode="open">
+      <style>
+        slot {
+          display: block;
+          width: 100px;
+          height: 100px;
+          background-color: red;
+        }
+        ::slotted(:has(:last-child)) {
+          display: block;
+          width: 100px;
+          height: 100px;
+          background-color: green;
+        }
+      </style>
+      <slot></slot>
+    </template>
+    <div><div></div></div>
+</div>
\ No newline at end of file
diff --git a/tests/wpt/tests/css/css-scoping/slotted-has-003.html b/tests/wpt/tests/css/css-scoping/slotted-has-003.html
new file mode 100644
index 00000000000..1ea412492c5
--- /dev/null
+++ b/tests/wpt/tests/css/css-scoping/slotted-has-003.html
@@ -0,0 +1,26 @@
+<!doctype html>
+<meta charset="utf-8">
+<title>:has-slotted</title>
+<link rel="help" href="https://github.com/w3c/csswg-drafts/pull/10586">
+<link rel="match" href="/css/reference/ref-filled-green-100px-square-only.html">
+<p>Test passes if there is a filled green square.</p>
+<div id="host">
+    <template shadowrootmode="open">
+      <style>
+        slot {
+          display: block;
+          width: 100px;
+          height: 100px;
+          background-color: red;
+        }
+        ::slotted(:has(:first-child:last-child)) {
+          display: block;
+          width: 100px;
+          height: 100px;
+          background-color: green;
+        }
+      </style>
+      <slot></slot>
+    </template>
+    <div><div></div></div>
+</div>
\ No newline at end of file
diff --git a/tests/wpt/tests/css/css-scoping/slotted-has-004.html b/tests/wpt/tests/css/css-scoping/slotted-has-004.html
new file mode 100644
index 00000000000..adf50da13a9
--- /dev/null
+++ b/tests/wpt/tests/css/css-scoping/slotted-has-004.html
@@ -0,0 +1,26 @@
+<!doctype html>
+<meta charset="utf-8">
+<title>:has-slotted</title>
+<link rel="help" href="https://github.com/w3c/csswg-drafts/pull/10586">
+<link rel="match" href="/css/reference/ref-filled-green-100px-square-only.html">
+<p>Test passes if there is a filled green square.</p>
+<div id="host">
+    <template shadowrootmode="open">
+      <style>
+        slot {
+          display: block;
+          width: 100px;
+          height: 100px;
+          background-color: red;
+        }
+        ::slotted(:not(:has(:first-child:last-child))) {
+          display: block;
+          width: 100px;
+          height: 100px;
+          background-color: green;
+        }
+      </style>
+      <slot></slot>
+    </template>
+    <div></div>
+</div>
\ No newline at end of file
diff --git a/tests/wpt/tests/css/css-tables/out-of-order-elements-collapsed-border-ref.html b/tests/wpt/tests/css/css-tables/out-of-order-elements-collapsed-border-ref.html
new file mode 100644
index 00000000000..5d7f6a5c947
--- /dev/null
+++ b/tests/wpt/tests/css/css-tables/out-of-order-elements-collapsed-border-ref.html
@@ -0,0 +1,41 @@
+<!DOCTYPE html>
+<title>CSS Test: Table border is correct even with out of order tbody, thead, tfoot</title>
+<link rel="author" title="Karl Dubost" href="mailto:karlcow@apple.com">
+<link rel="help" href="https://html.spec.whatwg.org/multipage/tables.html#forming-a-table">
+<style>
+table {
+    border: 3px solid blue;
+    border-collapse:collapse;}
+td, th {height: 20px; width:20px;}
+tbody {background-color: gold;}
+thead {background-color: pink;}
+tfoot {background-color: lightgreen;}
+</style>
+<table>
+    <thead><tr><th></th></tr></thead>
+    <tbody><tr><td></td></tr></tbody>
+</table>
+<table>
+    <tbody><tr><td></td></tr></tbody>
+    <tfoot><tr><th></th></tr></tfoot>
+</table>
+<table>
+    <thead><tr><th></th></tr></thead>
+    <tbody><tr><td></td></tr></tbody>
+    <tfoot><tr><th></th></tr></tfoot>
+</table>
+<table>
+    <thead><tr><th></th></tr></thead>
+    <tbody><tr><td></td></tr></tbody>
+    <tfoot><tr><th></th></tr></tfoot>
+</table>
+<table>
+    <thead><tr><th></th></tr></thead>
+    <tbody><tr><td></td></tr></tbody>
+    <tfoot><tr><th></th></tr></tfoot>
+</table>
+<table>
+    <thead><tr><th></th></tr></thead>
+    <tbody><tr><td></td></tr></tbody>
+    <tfoot><tr><th></th></tr></tfoot>
+</table>
diff --git a/tests/wpt/tests/css/css-tables/out-of-order-elements-collapsed-border.html b/tests/wpt/tests/css/css-tables/out-of-order-elements-collapsed-border.html
new file mode 100644
index 00000000000..9a431baf17c
--- /dev/null
+++ b/tests/wpt/tests/css/css-tables/out-of-order-elements-collapsed-border.html
@@ -0,0 +1,42 @@
+<!DOCTYPE html>
+<title>CSS Test: Table border is correct even with out of order tbody, thead, tfoot</title>
+<link rel="author" title="Karl Dubost" href="mailto:karlcow@apple.com">
+<link rel="help" href="https://html.spec.whatwg.org/multipage/tables.html#forming-a-table">
+<link rel="match" href="out-of-order-elements-collapsed-border-ref.html">
+<style>
+table {
+    border: 3px solid blue;
+    border-collapse:collapse;}
+td, th {height: 20px; width:20px;}
+tbody {background-color: gold;}
+thead {background-color: pink;}
+tfoot {background-color: lightgreen;}
+</style>
+<table>
+    <tbody><tr><td></td></tr></tbody>
+    <thead><tr><th></th></tr></thead>
+</table>
+<table>
+    <tfoot><tr><th></th></tr></tfoot>
+    <tbody><tr><td></td></tr></tbody>
+</table>
+<table>
+    <tfoot><tr><th></th></tr></tfoot>
+    <tbody><tr><td></td></tr></tbody>
+    <thead><tr><th></th></tr></thead>
+</table>
+<table>
+    <tfoot><tr><th></th></tr></tfoot>
+    <thead><tr><th></th></tr></thead>
+    <tbody><tr><td></td></tr></tbody>
+</table>
+<table>
+    <tbody><tr><td></td></tr></tbody>
+    <tfoot><tr><th></th></tr></tfoot>
+    <thead><tr><th></th></tr></thead>
+</table>
+<table>
+    <tbody><tr><td></td></tr></tbody>
+    <thead><tr><th></th></tr></thead>
+    <tfoot><tr><th></th></tr></tfoot>
+</table>
diff --git a/tests/wpt/tests/css/css-text/animations/hyphen-limit-chars-interpolation.html b/tests/wpt/tests/css/css-text/animations/hyphen-limit-chars-interpolation.html
new file mode 100644
index 00000000000..fb597e70c22
--- /dev/null
+++ b/tests/wpt/tests/css/css-text/animations/hyphen-limit-chars-interpolation.html
@@ -0,0 +1,54 @@
+<!DOCTYPE html>
+<link rel=author href="mailto:jkew@mozilla.com">
+<link rel=help href="https://drafts.csswg.org/css-text-4/#propdef-hyphenate-limit-chars">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/interpolation-testcommon.js"></script>
+
+<body>
+<script>
+test_interpolation({
+  property: "hyphenate-limit-chars",
+  from: "5 1 2",
+  to: "17 5 10",
+}, [
+  {at: -0.5, expect: "-1 -1 -2"},
+  {at: -0.25, expect: "2 0"},
+  {at: 0, expect: "5 1 2"},
+  {at: 0.25, expect: "8 2 4"},
+  {at: 0.5, expect: "11 3 6"},
+  {at: 0.75, expect: "14 4 8"},
+  {at: 1, expect: "17 5 10"},
+  {at: 1.5, expect: "23 7 14"},
+]);
+
+test_interpolation({
+  property: "hyphenate-limit-chars",
+  from: "auto 1 2",
+  to: "auto 5 10",
+}, [
+  {at: -0.5, expect: "auto -1 -2"},
+  {at: -0.25, expect: "auto 0"},
+  {at: 0, expect: "auto 1 2"},
+  {at: 0.25, expect: "auto 2 4"},
+  {at: 0.5, expect: "auto 3 6"},
+  {at: 0.75, expect: "auto 4 8"},
+  {at: 1, expect: "auto 5 10"},
+  {at: 1.5, expect: "auto 7 14"},
+]);
+
+test_interpolation({
+  property: "hyphenate-limit-chars",
+  from: "5",  // the missing values should both be 'auto'
+  to: "17",
+}, [
+  {at: -0.5, expect: "-1 auto"},
+  {at: -0.25, expect: "2 auto"},
+  {at: 0, expect: "5 auto"},
+  {at: 0.25, expect: "8 auto"},
+  {at: 0.5, expect: "11 auto"},
+  {at: 0.75, expect: "14 auto"},
+  {at: 1, expect: "17 auto"},
+  {at: 1.5, expect: "23 auto"},
+]);
+</script>
diff --git a/tests/wpt/tests/css/css-text/line-breaking/segment-break-transformation-currency-001-ref.html b/tests/wpt/tests/css/css-text/line-breaking/segment-break-transformation-currency-001-ref.html
new file mode 100644
index 00000000000..567677cec71
--- /dev/null
+++ b/tests/wpt/tests/css/css-text/line-breaking/segment-break-transformation-currency-001-ref.html
@@ -0,0 +1,8 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>Segment break transformation reference</title>
+
+<p>Each currency amount should have space before and after; there should be no other spaces.</p>
+<p lang="ja" style="font-family: sans-serif; word-spacing: 1em;">
+  価格は  $1.00  です。価格は  ¥150  です。価格は  €1.00  です。価格は  ₩1500  です。
+</p>
diff --git a/tests/wpt/tests/css/css-text/line-breaking/segment-break-transformation-currency-001.html b/tests/wpt/tests/css/css-text/line-breaking/segment-break-transformation-currency-001.html
new file mode 100644
index 00000000000..3a24b05b4da
--- /dev/null
+++ b/tests/wpt/tests/css/css-text/line-breaking/segment-break-transformation-currency-001.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>Segment break transformation: currency symbols</title>
+<link rel="author" href="mailto:jkew@mozilla.com">
+<link rel="match" href="segment-break-transformation-currency-001-ref.html">
+<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1940947">
+<meta name="flags" content="should" />
+
+<p>Each currency amount should have space before and after; there should be no other spaces.</p>
+<p lang="ja" style="font-family: sans-serif; word-spacing: 1em;">
+  価格は
+  $1.00
+  です。
+  価格は
+  ¥150
+  です。
+  価格は
+  €1.00
+  です。
+  価格は
+  ₩1500
+  です。
+</p>
diff --git a/tests/wpt/tests/css/css-text/line-breaking/segment-break-transformation-punctuation-002-ref.html b/tests/wpt/tests/css/css-text/line-breaking/segment-break-transformation-punctuation-002-ref.html
new file mode 100644
index 00000000000..0b747788304
--- /dev/null
+++ b/tests/wpt/tests/css/css-text/line-breaking/segment-break-transformation-punctuation-002-ref.html
@@ -0,0 +1,10 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>Segment break transformation: CJK punctuation</title>
+
+<p lang="ja">
+FF5E～FF5F・301C&#x301C;301D
+</p>
+<p lang="ja">
+FF5E～FF5F・301C&#x301C;301D
+</p>
diff --git a/tests/wpt/tests/css/css-text/line-breaking/segment-break-transformation-punctuation-002.html b/tests/wpt/tests/css/css-text/line-breaking/segment-break-transformation-punctuation-002.html
new file mode 100644
index 00000000000..f2c9d9a5d4b
--- /dev/null
+++ b/tests/wpt/tests/css/css-text/line-breaking/segment-break-transformation-punctuation-002.html
@@ -0,0 +1,20 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>Segment break transformation: CJK punctuation</title>
+<link rel="author" href="mailto:jkew@mozilla.com">
+<link rel="match" href="segment-break-transformation-punctuation-002-ref.html">
+<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1941096">
+<meta name="flags" content="should" />
+
+<p lang="ja">
+FF5E
+～
+FF5F
+・
+301C
+&#x301C;
+301D
+</p>
+<p lang="ja">
+FF5E～FF5F・301C&#x301C;301D
+</p>
diff --git a/tests/wpt/tests/css/css-text/parsing/hyphenate-limit-chars-computed.html b/tests/wpt/tests/css/css-text/parsing/hyphenate-limit-chars-computed.html
index bc265c8e81e..66c7bf2e4d0 100644
--- a/tests/wpt/tests/css/css-text/parsing/hyphenate-limit-chars-computed.html
+++ b/tests/wpt/tests/css/css-text/parsing/hyphenate-limit-chars-computed.html
@@ -6,7 +6,7 @@
 <script src="/css/support/computed-testcommon.js"></script>
 <div id="target"></div>
 <script>
-test_computed_value("hyphenate-character", "auto");
+test_computed_value("hyphenate-limit-chars", "auto");
 test_computed_value("hyphenate-limit-chars", "auto auto", "auto");
 test_computed_value("hyphenate-limit-chars", "auto auto auto", "auto");
 test_computed_value("hyphenate-limit-chars", "5");
@@ -14,6 +14,7 @@ test_computed_value("hyphenate-limit-chars", "5 2");
 test_computed_value("hyphenate-limit-chars", "5 2 3");
 test_computed_value("hyphenate-limit-chars", "5 2 calc(3.1)", "5 2 3");
 test_computed_value("hyphenate-limit-chars", "auto 2");
-test_computed_value("hyphenate-limit-chars", "auto 2 auto", "auto 2");
+test_computed_value("hyphenate-limit-chars", "auto 2 2", "auto 2");
+test_computed_value("hyphenate-limit-chars", "auto 2 auto");
 test_computed_value("hyphenate-limit-chars", "auto auto 2");
 </script>
diff --git a/tests/wpt/tests/css/css-text/parsing/hyphenate-limit-chars-valid.html b/tests/wpt/tests/css/css-text/parsing/hyphenate-limit-chars-valid.html
index 2f10e33f1de..f661019a219 100644
--- a/tests/wpt/tests/css/css-text/parsing/hyphenate-limit-chars-valid.html
+++ b/tests/wpt/tests/css/css-text/parsing/hyphenate-limit-chars-valid.html
@@ -6,12 +6,14 @@
 <script src="/css/support/parsing-testcommon.js"></script>
 <script>
 test_valid_value("hyphenate-limit-chars", "auto");
-test_valid_value("hyphenate-limit-chars", "auto auto");
-test_valid_value("hyphenate-limit-chars", "auto auto auto");
+test_valid_value("hyphenate-limit-chars", "auto auto", "auto");
+test_valid_value("hyphenate-limit-chars", "auto auto auto", "auto");
 test_valid_value("hyphenate-limit-chars", "5");
 test_valid_value("hyphenate-limit-chars", "5 2");
+test_valid_value("hyphenate-limit-chars", "5 2 2", "5 2");
 test_valid_value("hyphenate-limit-chars", "5 2 3");
 test_valid_value("hyphenate-limit-chars", "auto 2");
+test_valid_value("hyphenate-limit-chars", "auto 2 2", "auto 2");
 test_valid_value("hyphenate-limit-chars", "auto 2 auto");
 test_valid_value("hyphenate-limit-chars", "auto auto 2");
 </script>
diff --git a/tests/wpt/tests/css/css-text/white-space/seg-break-transformation-004.tentative.html b/tests/wpt/tests/css/css-text/white-space/seg-break-transformation-004.tentative.html
index e7a12b13378..19edef5435e 100644
--- a/tests/wpt/tests/css/css-text/white-space/seg-break-transformation-004.tentative.html
+++ b/tests/wpt/tests/css/css-text/white-space/seg-break-transformation-004.tentative.html
@@ -2,7 +2,7 @@
 <html  lang="en" >
 <head>
 <meta charset="utf-8">
-<title>Won and halfwidth characters around line break</title>
+<title>Halfwidth characters around line break</title>
 <link rel='author' title='Richard Ishida' href='mailto:ishida@w3.org'>
 <link rel='help' href='https://drafts.csswg.org/css-text-3/#line-break-transform'>
 <meta name="assert" content="If the East Asian Width property of both the character before and after the line feed is F or H and neither side is Hangul, then the segment break is removed.">
@@ -16,77 +16,77 @@
 </head>
 <body>
 <div id='log'></div>
-<div id='test1' class="test"><span>₩
+<div id='test1' class="test"><span>ﾉｺﾘ
 ２４</span></div>
-<div id='test2' class="test"><span>₩&#x20;&#x20;&#x20;
+<div id='test2' class="test"><span>ﾉｺﾘ&#x20;&#x20;&#x20;
 ２４</span></div>
-<div id='test3' class="test"><span>₩
+<div id='test3' class="test"><span>ﾉｺﾘ
 &#x20;&#x20;&#x20;&#x20;&#x20;&#x20;&#x20;&#x20;２４</span></div>
-<div id='test4' class="test"><span>₩&#x20;&#x20;&#x20;
+<div id='test4' class="test"><span>ﾉｺﾘ&#x20;&#x20;&#x20;
 &#x20;&#x20;&#x20;&#x20;&#x20;２４</span></div>
-<div id='test5' class="test"><span>₩
+<div id='test5' class="test"><span>ﾉｺﾘ
 
 
 ２４</span></div>
-<div id='test6' class="test"><span>₩&#x20;&#x20;
+<div id='test6' class="test"><span>ﾉｺﾘ&#x20;&#x20;
 &#x20;&#x20;&#x20;
 &#x20;&#x20;&#x20;
 &#x20;&#x20;&#x20;２４</span></div>
-<div id="ref1" class="ref"><span>₩２４</span></div>
+<div id="ref1" class="ref"><span>ﾉｺﾘ２４</span></div>
 <div id='test7' class="test"><span>２４
-₩</span></div>
+ｺ</span></div>
 <div id='test8' class="test"><span>２４&#x20;&#x20;&#x20;
-₩</span></div>
+ｺ</span></div>
 <div id='test9' class="test"><span>２４
-&#x20;&#x20;&#x20;&#x20;&#x20;&#x20;&#x20;&#x20;₩</span></div>
+&#x20;&#x20;&#x20;&#x20;&#x20;&#x20;&#x20;&#x20;ｺ</span></div>
 <div id='test10' class="test"><span>２４&#x20;&#x20;&#x20;
-&#x20;&#x20;&#x20;&#x20;&#x20;₩</span></div>
+&#x20;&#x20;&#x20;&#x20;&#x20;ｺ</span></div>
 <div id='test11' class="test"><span>２４
 
 
-₩</span></div>
+ｺ</span></div>
 <div id='test12' class="test"><span>２４&#x20;&#x20;
 &#x20;&#x20;&#x20;
 &#x20;&#x20;&#x20;
-&#x20;&#x20;&#x20;₩</span></div>
-<div id="ref2" class="ref"><span>２４₩</span></div>
+&#x20;&#x20;&#x20;ｺ</span></div>
+<div id="ref2" class="ref"><span>２４ｺ</span></div>
 <script>
 test(function() {
 assert_equals(document.getElementById('test1').firstChild.offsetWidth, document.getElementById('ref1').firstChild.offsetWidth);
-}, "linebreak only ₩２４");
+}, "linebreak only ﾉｺﾘ２４");
 test(function() {
 assert_equals(document.getElementById('test2').firstChild.offsetWidth, document.getElementById('ref1').firstChild.offsetWidth);
-}, "spaces linebreak ₩２４");
+}, "spaces linebreak ﾉｺﾘ２４");
 test(function() {
 assert_equals(document.getElementById('test3').firstChild.offsetWidth, document.getElementById('ref1').firstChild.offsetWidth);
-}, "linebreak spaces ₩２４");
+}, "linebreak spaces ﾉｺﾘ２４");
 test(function() {
 assert_equals(document.getElementById('test4').firstChild.offsetWidth, document.getElementById('ref1').firstChild.offsetWidth);
-}, "spaces linebreak spaces ₩２４");
+}, "spaces linebreak spaces ﾉｺﾘ２４");
 test(function() {
 assert_equals(document.getElementById('test5').firstChild.offsetWidth, document.getElementById('ref1').firstChild.offsetWidth);
-}, "multiple linebreaks ₩２４");
+}, "multiple linebreaks ﾉｺﾘ２４");
 test(function() {
 assert_equals(document.getElementById('test6').firstChild.offsetWidth, document.getElementById('ref1').firstChild.offsetWidth);
-}, "multiple linebreaks + spaces ₩２４");
+}, "multiple linebreaks + spaces ﾉｺﾘ２４");
 test(function() {
 assert_equals(document.getElementById('test7').firstChild.offsetWidth, document.getElementById('ref2').firstChild.offsetWidth);
-}, "linebreak only ２４₩");
+}, "linebreak only ２４ｺ");
 test(function() {
 assert_equals(document.getElementById('test8').firstChild.offsetWidth, document.getElementById('ref2').firstChild.offsetWidth);
-}, "spaces linebreak ２４₩");
+}, "spaces linebreak ２４ｺ");
 test(function() {
 assert_equals(document.getElementById('test9').firstChild.offsetWidth, document.getElementById('ref2').firstChild.offsetWidth);
-}, "linebreak spaces ２４₩");
+}, "linebreak spaces ２４ｺ");
 test(function() {
 assert_equals(document.getElementById('test10').firstChild.offsetWidth, document.getElementById('ref2').firstChild.offsetWidth);
-}, "spaces linebreak spaces ２４₩");
+}, "spaces linebreak spaces ２４ｺ");
 test(function() {
 assert_equals(document.getElementById('test11').firstChild.offsetWidth, document.getElementById('ref2').firstChild.offsetWidth);
-}, "multiple linebreaks ２４₩");
+}, "multiple linebreaks ２４ｺ");
 test(function() {
 assert_equals(document.getElementById('test12').firstChild.offsetWidth, document.getElementById('ref2').firstChild.offsetWidth);
-}, "multiple linebreaks + spaces ２４₩");
+}, "multiple linebreaks + spaces ２４ｺ");
 </script>
 <!-- Notes:
 The assertion will fail if space is produced for any line in the test paragraph.
diff --git a/tests/wpt/tests/css/css-ui/interactivity-inert-find.html b/tests/wpt/tests/css/css-ui/interactivity-inert-find.html
new file mode 100644
index 00000000000..03570e5f790
--- /dev/null
+++ b/tests/wpt/tests/css/css-ui/interactivity-inert-find.html
@@ -0,0 +1,32 @@
+<!DOCTYPE html>
+<title>CSS Basic User Interface Test: window.find() works with the interactivity property</title>
+<link rel="help" href="https://drafts.csswg.org/css-ui-4/#inertness">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<style>
+  .inert { interactivity: inert; }
+  .non-inert { interactivity: auto; }
+</style>
+<div>
+  MATCH-1
+  <div class="inert">
+    MATCH-2
+    <div class="non-inert">
+      MATCH-3
+    </div>
+  </div>
+</div>
+<script>
+  test(() => {
+    assert_true(window.find("MATCH-1"));
+  }, "Find non-inert text");
+
+  test(() => {
+    assert_false(window.find("MATCH-2"));
+  }, "Fail to find inert text");
+
+  test(() => {
+    assert_true(window.find("MATCH-3"));
+  }, "Find non-inert text inside inert ancestor");
+
+</script>
diff --git a/tests/wpt/tests/css/css-ui/interactivity-inert-fullscreen-ua.html b/tests/wpt/tests/css/css-ui/interactivity-inert-fullscreen-ua.html
new file mode 100644
index 00000000000..80dbc35209f
--- /dev/null
+++ b/tests/wpt/tests/css/css-ui/interactivity-inert-fullscreen-ua.html
@@ -0,0 +1,73 @@
+<!DOCTYPE html>
+<title>CSS Basic User Interface Test: UA style interactivity for :fullscreen</title>
+<link rel="help" href="https://drafts.csswg.org/css-ui-4/#inertness">
+<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>
+<div id="t1"></div>
+<div id="t2" inert></div>
+<div inert>
+  <div id="t3"></div>
+</div>
+<div id="f4">
+  <div id="t4" inert></div>
+</div>
+<div id="t5" style="interactivity:inert"></div>
+<script>
+  promise_test(async (t) => {
+    t.add_cleanup(() => {
+      if (document.fullscreenElement) {
+        return document.exitFullscreen();
+      }
+    });
+    assert_equals(getComputedStyle(t1).interactivity, "auto", "before requestFullscreen");
+    await test_driver.bless("fullscreen", () => t1.requestFullscreen());
+    assert_equals(getComputedStyle(t1).interactivity, "auto", "after requestFullscreen");
+  }, "UA :fullscreen interactivity rule");
+
+  promise_test(async (t) => {
+    t.add_cleanup(() => {
+      if (document.fullscreenElement) {
+        return document.exitFullscreen();
+      }
+    });
+    assert_equals(getComputedStyle(t2).interactivity, "inert", "before requestFullscreen");
+    await test_driver.bless("fullscreen", () => t2.requestFullscreen());
+    assert_equals(getComputedStyle(t2).interactivity, "inert", "after requestFullscreen");
+  }, "UA [inert] rule wins over UA :fullscreen rule");
+
+  promise_test(async (t) => {
+    t.add_cleanup(() => {
+      if (document.fullscreenElement) {
+        return document.exitFullscreen();
+      }
+    });
+    assert_equals(getComputedStyle(t3).interactivity, "inert", "before requestFullscreen");
+    await test_driver.bless("fullscreen", () => t3.requestFullscreen());
+    assert_equals(getComputedStyle(t3).interactivity, "auto", "after requestFullscreen");
+  }, "UA :fullscreen rule overriding inherited [inert] 'interactivity:inert' rule");
+
+  promise_test(async (t) => {
+    t.add_cleanup(() => {
+      if (document.fullscreenElement) {
+        return document.exitFullscreen();
+      }
+    });
+    assert_equals(getComputedStyle(t4).interactivity, "inert", "before requestFullscreen");
+    await test_driver.bless("fullscreen", () => f4.requestFullscreen());
+    assert_equals(getComputedStyle(t4).interactivity, "inert", "after requestFullscreen");
+  }, "UA [inert] rule overriding inherited :fullscreen 'interactivity:auto' rule");
+
+  promise_test(async (t) => {
+    t.add_cleanup(() => {
+      if (document.fullscreenElement) {
+        return document.exitFullscreen();
+      }
+    });
+    assert_equals(getComputedStyle(t5).interactivity, "inert", "before requestFullscreen");
+    await test_driver.bless("fullscreen", () => t5.requestFullscreen());
+    assert_equals(getComputedStyle(t5).interactivity, "inert", "after requestFullscreen");
+  }, "Author 'interactivity:inert' overrides UA :fullscreen 'interactivity:auto' rule");
+
+</script>
diff --git a/tests/wpt/tests/css/css-ui/interactivity-inert-modal-dialog-ua.html b/tests/wpt/tests/css/css-ui/interactivity-inert-modal-dialog-ua.html
index e8094f88a69..9405699c5ac 100644
--- a/tests/wpt/tests/css/css-ui/interactivity-inert-modal-dialog-ua.html
+++ b/tests/wpt/tests/css/css-ui/interactivity-inert-modal-dialog-ua.html
@@ -9,7 +9,7 @@
   <dialog id="t3"></dialog>
 </div>
 <dialog id="d4">
-  <div id="t4" inert>
+  <div id="t4" inert></div>
 </dialog>
 <dialog id="t5" style="interactivity:inert"></dialog>
 <script>
@@ -24,8 +24,8 @@
     t.add_cleanup(() => { t2.close(); });
     assert_equals(getComputedStyle(t2).interactivity, "inert", "before showModal");
     t2.showModal();
-    assert_equals(getComputedStyle(t2).interactivity, "auto", "after showModal");
-  }, "UA dialog:modal inert rule wins over [inert] rule");
+    assert_equals(getComputedStyle(t2).interactivity, "inert", "after showModal");
+  }, "UA [inert] rule wins over UA dialog:modal inert rule");
 
   test((t) => {
     t.add_cleanup(() => { t3.close(); });
diff --git a/tests/wpt/tests/css/css-values/attr-cycle.tentative.html b/tests/wpt/tests/css/css-values/attr-cycle.html
similarity index 100%
rename from tests/wpt/tests/css/css-values/attr-cycle.tentative.html
rename to tests/wpt/tests/css/css-values/attr-cycle.html
diff --git a/tests/wpt/tests/css/css-view-transitions/duplicate-tag-rejects-start.html b/tests/wpt/tests/css/css-view-transitions/duplicate-tag-rejects-start.html
index 5c605fefbb3..49698f4413f 100644
--- a/tests/wpt/tests/css/css-view-transitions/duplicate-tag-rejects-start.html
+++ b/tests/wpt/tests/css/css-view-transitions/duplicate-tag-rejects-start.html
@@ -22,29 +22,26 @@ div {
 <script>
 promise_test(async t => {
   assert_implements(document.startViewTransition, "Missing document.startViewTransition");
-  return new Promise((resolve, reject) => {
+
+  first.style = "view-transition-name: target";
+  let transition = document.startViewTransition(() => {
     first.style = "view-transition-name: target";
-    let transition = document.startViewTransition(() => {
-      first.style = "view-transition-name: target";
-      second.style = "view-transition-name: target";
-    });
-
-    // First updateCallbackDone resolves since the callback runs successfully.
-    let updateCallbackDoneResolved = false;
-    transition.updateCallbackDone.then(() => { updateCallbackDoneResolved = true; }, reject);
-
-    // Ready rejects.
-    let readyRejected = false;
-    transition.ready.then(reject, () => {
-      readyRejected = true;
-      assert_true(updateCallbackDoneResolved, "updateCallbackDone should resolve before ready was rejected");
-    });
-
-    // Then finished resolves since updateCallbackDone was already resolved.
-    transition.finished.then(() => {
-      assert_true(readyRejected, "finished should resolve after ready was rejected");
-      resolve();
-    }, reject);
+    second.style = "view-transition-name: target";
   });
+
+  // First updateCallbackDone resolves since the callback runs successfully.
+  let updateCallbackDoneResolved = false;
+  transition.updateCallbackDone.then(() => { updateCallbackDoneResolved = true; }, reject);
+
+  // Ready rejects.
+  let readyRejected = false;
+  transition.ready.then(reject, () => {
+    readyRejected = true;
+    assert_true(updateCallbackDoneResolved, "updateCallbackDone should resolve before ready was rejected");
+  });
+
+  // Then finished resolves since updateCallbackDone was already resolved.
+  await transition.finished;
+  assert_true(readyRejected, "finished should resolve after ready was rejected");
 }, "Two different elements with the same name in the new DOM should skip the transition");
 </script>
diff --git a/tests/wpt/tests/css/css-view-transitions/style-inheritance.html b/tests/wpt/tests/css/css-view-transitions/style-inheritance.html
index ed4705c56d7..aa3e90e9e4e 100644
--- a/tests/wpt/tests/css/css-view-transitions/style-inheritance.html
+++ b/tests/wpt/tests/css/css-view-transitions/style-inheritance.html
@@ -29,28 +29,26 @@
 </style>
 
 <script>
-promise_test(() => {
+promise_test(async () => {
   assert_implements(document.startViewTransition, "Missing document.startViewTransition");
-  return new Promise(async (resolve, reject) => {
-    let transition = document.startViewTransition();
-    transition.ready.then(() => {
-      assert_equals(getComputedStyle(document.documentElement, "::view-transition").backgroundColor, "rgb(255, 0, 0)", "::view-transition");
+  let transition = document.startViewTransition();
+  await transition.ready;
 
-      assert_equals(getComputedStyle(document.documentElement, "::view-transition-group(root)").backgroundColor, "rgb(255, 0, 0)", "group");
-      assert_equals(getComputedStyle(document.documentElement, "::view-transition-group(root)").color, "rgb(0, 0, 255)", "group");
-      assert_equals(getComputedStyle(document.documentElement, "::view-transition-group(root)").animationDuration, "0.321s", "group");
+  assert_equals(getComputedStyle(document.documentElement, "::view-transition").backgroundColor, "rgb(255, 0, 0)", "::view-transition");
 
-      assert_equals(getComputedStyle(document.documentElement, "::view-transition-image-pair(root)").color, "rgb(0, 0, 255)", "wrapper");
-      assert_equals(getComputedStyle(document.documentElement, "::view-transition-image-pair(root)").overflowX, "clip", "wrapper");
-      assert_equals(getComputedStyle(document.documentElement, "::view-transition-image-pair(root)").animationDuration, "0.321s", "wrapper");
+  assert_equals(getComputedStyle(document.documentElement, "::view-transition-group(root)").backgroundColor, "rgb(255, 0, 0)", "group");
+  assert_equals(getComputedStyle(document.documentElement, "::view-transition-group(root)").color, "rgb(0, 0, 255)", "group");
+  assert_equals(getComputedStyle(document.documentElement, "::view-transition-group(root)").animationDuration, "0.321s", "group");
 
-      assert_equals(getComputedStyle(document.documentElement, "::view-transition-old(root)").overflowX, "clip", "outgoing");
-      assert_equals(getComputedStyle(document.documentElement, "::view-transition-old(root)").animationDuration, "0.321s", "outgoing");
-      assert_equals(getComputedStyle(document.documentElement, "::view-transition-new(root)").overflowX, "clip", "incoming");
-      assert_equals(getComputedStyle(document.documentElement, "::view-transition-new(root)").animationDuration, "0.321s", "incoming");
-    });
-    await transition.finished;
-    resolve();
-  });
+  assert_equals(getComputedStyle(document.documentElement, "::view-transition-image-pair(root)").color, "rgb(0, 0, 255)", "wrapper");
+  assert_equals(getComputedStyle(document.documentElement, "::view-transition-image-pair(root)").overflowX, "clip", "wrapper");
+  assert_equals(getComputedStyle(document.documentElement, "::view-transition-image-pair(root)").animationDuration, "0.321s", "wrapper");
+
+  assert_equals(getComputedStyle(document.documentElement, "::view-transition-old(root)").overflowX, "clip", "outgoing");
+  assert_equals(getComputedStyle(document.documentElement, "::view-transition-old(root)").animationDuration, "0.321s", "outgoing");
+  assert_equals(getComputedStyle(document.documentElement, "::view-transition-new(root)").overflowX, "clip", "incoming");
+  assert_equals(getComputedStyle(document.documentElement, "::view-transition-new(root)").animationDuration, "0.321s", "incoming");
+
+  await transition.finished;
 }, "style inheritance of pseudo elements");
 </script>
diff --git a/tests/wpt/tests/css/css-view-transitions/window-resize-aborts-transition.html b/tests/wpt/tests/css/css-view-transitions/window-resize-aborts-transition.html
index 9b799e070af..b5898a363a8 100644
--- a/tests/wpt/tests/css/css-view-transitions/window-resize-aborts-transition.html
+++ b/tests/wpt/tests/css/css-view-transitions/window-resize-aborts-transition.html
@@ -26,56 +26,53 @@ let popupWin;
 promise_test(async t => {
   assert_implements(document.startViewTransition, "Missing document.startViewTransition");
 
-  return new Promise(async (resolve, reject) => {
-    await waitForAtLeastOneFrame(window);
+  await waitForAtLeastOneFrame(window);
 
-    // Open a popup window that we'll use to start a transition
-    await test_driver.bless('Open a popup in a new window', () => {
-        popupWin = window.open('about:blank', 'popup', 'width=300,height=300');
-    });
-    let popupDoc = popupWin.document;
-    popupDoc.documentElement.innerHTML = `
-      <style>
-        html {background-color: red;}
-        html.new {background-color: limegreen;}
-
-        /* Set a no-op animation to show the old snapshot indefinitely. */
-        html::view-transition-group(*) {animation-duration: 10s;}
-        html::view-transition-new(*) {animation: unset;opacity: 0;}
-        html::view-transition-old(*) {animation-duration: 10s;opacity: 1;}
-      </style>`;
-
-    if (popupDoc.visibilityState == "hidden") {
-      await new Promise((resolve) => {
-        popupDoc.addEventListener("visibilitychange", resolve, { once: true });
-      });
-    }
-
-    // Start a transition inside the popup.
-    let transition = popupDoc.startViewTransition(() => {
-      popupDoc.documentElement.classList.add('new');
-    });
-
-    let finishResolved = false;
-    transition.finished.then(() => {
-      finishResolved = true;
-    });
-
-    // Wait for the transition to start animating.
-    await transition.ready;
-    await waitForAtLeastOneFrame(popupWin);
-    await waitForAtLeastOneFrame(popupWin);
-
-    // Resize the popup window.
-    popupWin.resizeTo(popupWin.innerWidth/2, popupWin.innerHeight/2);
-
-    await waitForAtLeastOneFrame(popupWin);
-
-    // `finish` should have resolved as resizing the transition after capture
-    // should cause it to skip.
-    assert_true(finishResolved, "Transition must be finished by the window resize");
-    resolve();
+  // Open a popup window that we'll use to start a transition
+  await test_driver.bless('Open a popup in a new window', () => {
+      popupWin = window.open('about:blank', 'popup', 'width=300,height=300');
   });
+  let popupDoc = popupWin.document;
+  popupDoc.documentElement.innerHTML = `
+    <style>
+      html {background-color: red;}
+      html.new {background-color: limegreen;}
+
+      /* Set a no-op animation to show the old snapshot indefinitely. */
+      html::view-transition-group(*) {animation-duration: 10s;}
+      html::view-transition-new(*) {animation: unset;opacity: 0;}
+      html::view-transition-old(*) {animation-duration: 10s;opacity: 1;}
+    </style>`;
+
+  if (popupDoc.visibilityState == "hidden") {
+    await new Promise((resolve) => {
+      popupDoc.addEventListener("visibilitychange", resolve, { once: true });
+    });
+  }
+
+  // Start a transition inside the popup.
+  let transition = popupDoc.startViewTransition(() => {
+    popupDoc.documentElement.classList.add('new');
+  });
+
+  let finishResolved = false;
+  transition.finished.then(() => {
+    finishResolved = true;
+  });
+
+  // Wait for the transition to start animating.
+  await transition.ready;
+  await waitForAtLeastOneFrame(popupWin);
+  await waitForAtLeastOneFrame(popupWin);
+
+  // Resize the popup window.
+  popupWin.resizeTo(popupWin.innerWidth/2, popupWin.innerHeight/2);
+
+  await waitForAtLeastOneFrame(popupWin);
+
+  // `finish` should have resolved as resizing the transition after capture
+  // should cause it to skip.
+  assert_true(finishResolved, "Transition must be finished by the window resize");
 });
 </script>
 </head>
diff --git a/tests/wpt/tests/css/cssom/adoptedstylesheets-adopt-link.tentative.html b/tests/wpt/tests/css/cssom/adoptedstylesheets-adopt-link.tentative.html
new file mode 100644
index 00000000000..15a948e45ae
--- /dev/null
+++ b/tests/wpt/tests/css/cssom/adoptedstylesheets-adopt-link.tentative.html
@@ -0,0 +1,25 @@
+<!doctype html>
+<meta charset="utf-8">
+<title>adoptedStyleSheets adopt link tag</title>
+<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/10013">
+<link rel="match" href="/css/reference/ref-filled-green-100px-square-only.html">
+<link rel="stylesheet" href="./resources/adoptedstylesheet-adopt-link.css" id="linkSheet">
+<p>Test passes if there is a filled green square.</p>
+<my-element id="host"></my-element>
+<script>
+customElements.define('my-element', class extends HTMLElement {
+  connectedCallback() {
+    this.attachShadow({mode:'open'}).append(document.createElement('div'));
+    const sheet = new CSSStyleSheet();
+    sheet.replaceSync(`
+      div {
+        display: block;
+        width: 100px;
+        height: 100px;
+        background: red;
+      }
+    `);
+    this.shadowRoot.adoptedStyleSheets = [sheet, linkSheet.sheet];
+  }
+});
+</script>
diff --git a/tests/wpt/tests/css/cssom/adoptedstylesheets-adopt-style-subresource.tentative.html b/tests/wpt/tests/css/cssom/adoptedstylesheets-adopt-style-subresource.tentative.html
new file mode 100644
index 00000000000..8774a471986
--- /dev/null
+++ b/tests/wpt/tests/css/cssom/adoptedstylesheets-adopt-style-subresource.tentative.html
@@ -0,0 +1,28 @@
+<!doctype html>
+<meta charset="utf-8">
+<title>adoptedStyleSheets adopt link tag</title>
+<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/10013">
+<link rel="match" href="/css/reference/ref-filled-green-100px-square-only.html">
+<p>Test passes if there is a filled green square.</p>
+<style id="styleSheet">
+  @import url("./resources/adoptedstylesheet-adopt-link.css");
+</style>
+<my-element id="host"></my-element>
+<script>
+customElements.define('my-element', class extends HTMLElement {
+  connectedCallback() {
+    this.attachShadow({mode:'open'}).append(document.createElement('div'));
+    const sheet = new CSSStyleSheet();
+    sheet.replaceSync(`
+      div {
+        display: block;
+        width: 100px;
+        height: 100px;
+        background: red;
+      }
+    `);
+    this.shadowRoot.adoptedStyleSheets = [sheet, styleSheet.sheet];
+  }
+});
+</script>
+
diff --git a/tests/wpt/tests/css/cssom/adoptedstylesheets-adopt-style.tentative.html b/tests/wpt/tests/css/cssom/adoptedstylesheets-adopt-style.tentative.html
new file mode 100644
index 00000000000..4abb62167b7
--- /dev/null
+++ b/tests/wpt/tests/css/cssom/adoptedstylesheets-adopt-style.tentative.html
@@ -0,0 +1,29 @@
+<!doctype html>
+<meta charset="utf-8">
+<title>adoptedStyleSheets adopt link tag</title>
+<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/10013">
+<link rel="match" href="/css/reference/ref-filled-green-100px-square-only.html">
+<p>Test passes if there is a filled green square.</p>
+<style id="styleSheet">
+  div {
+    background-color: green !important;
+  }
+</style>
+<my-element id="host"></my-element>
+<script>
+customElements.define('my-element', class extends HTMLElement {
+  connectedCallback() {
+    this.attachShadow({mode:'open'}).append(document.createElement('div'));
+    const sheet = new CSSStyleSheet();
+    sheet.replaceSync(`
+      div {
+        display: block;
+        width: 100px;
+        height: 100px;
+        background: red;
+      }
+    `);
+    this.shadowRoot.adoptedStyleSheets = [sheet, styleSheet.sheet];
+  }
+});
+</script>
diff --git a/tests/wpt/tests/css/cssom/cssom-pagerule.html b/tests/wpt/tests/css/cssom/cssom-pagerule.html
index 994257b2450..65c35e99a68 100644
--- a/tests/wpt/tests/css/cssom/cssom-pagerule.html
+++ b/tests/wpt/tests/css/cssom/cssom-pagerule.html
@@ -19,55 +19,108 @@
     assert_equals(rule.selectorText, "");
   }, "Page selector is initially the empty string");
 
+  test(() => {
+    assert_equals(rule.cssText, "@page { }");
+  }, "Page selector 'cssText' is initially the @page { }");
+
   test(() => {
     rule.selectorText = ":left";
     assert_equals(rule.selectorText, ":left");
   }, "Set selectorText to :left pseudo page");
 
+  test(() => {
+    rule.selectorText = ":left";
+    assert_equals(rule.cssText, "@page :left { }");
+  }, "Set cssText to :left pseudo page");
+
   test(() => {
     rule.selectorText = "named";
     assert_equals(rule.selectorText, "named");
   }, "Set selectorText to named page");
 
+  test(() => {
+    rule.selectorText = "named";
+    assert_equals(rule.cssText, "@page named { }");
+  }, "Set cssText to named page");
+
   test(() => {
     rule.selectorText = "named:first";
     assert_equals(rule.selectorText, "named:first");
   }, "Set selectorText to named page with :first pseudo page");
 
+  test(() => {
+    rule.selectorText = "named:first";
+    assert_equals(rule.cssText, "@page named:first { }");
+  }, "Set cssText to named page with :first pseudo page");
+
   test(() => {
     rule.selectorText = "named:First";
     assert_equals(rule.selectorText, "named:first");
   }, "Set selectorText to named page with case insensitive :first pseudo page");
 
+  test(() => {
+    rule.selectorText = "named:First";
+    assert_equals(rule.cssText, "@page named:first { }");
+  }, "Set cssText to named page with case insensitive :first pseudo page");
+
   test(() => {
     rule.selectorText = "named:first:first";
     assert_equals(rule.selectorText, "named:first:first");
   }, "Set selectorText to named page with two :first pseudo page");
 
+  test(() => {
+    rule.selectorText = "named:first:first";
+    assert_equals(rule.cssText, "@page named:first:first { }");
+  }, "Set cssText to named page with two :first pseudo page");
+
   test(() => {
     rule.selectorText = "named:first:left:right:first";
     assert_equals(rule.selectorText, "named:first:left:right:first");
   }, "Set selectorText to named page with pseudo pages of " +
     ":first, :left, :right, :first in order.");
 
+    test(() => {
+    rule.selectorText = "named:first:left:right:first";
+    assert_equals(rule.cssText, "@page named:first:left:right:first { }");
+  }, "Set cssText to named page with pseudo pages of " +
+    ":first, :left, :right, :first in order.");
+
   test(() => {
     rule.selectorText = "";
     rule.selectorText = "named :first";
     assert_equals(rule.selectorText, "");
   }, "Cannot set selectorText to named page with pseudo, whitespace between");
 
+  test(() => {
+    rule.selectorText = "";
+    rule.selectorText = "named :first";
+    assert_equals(rule.cssText, "@page { }");
+  }, "Cannot set cssText to named page with pseudo, whitespace between - return default @page { }");
+
   test(() => {
     rule.selectorText = "";
     rule.selectorText = ":first :left";
     assert_equals(rule.selectorText, "");
   }, "Cannot set selectorText to two pseudos, whitespace between");
 
+  test(() => {
+    rule.selectorText = "";
+    rule.selectorText = ":first :left";
+    assert_equals(rule.cssText, "@page { }");
+  }, "Cannot set cssText to two pseudos, whitespace between - return default @page { }");
+
   test(() => {
     rule.selectorText = "";
     rule.selectorText = ":notapagepseudo";
     assert_equals(rule.selectorText, "");
   }, "Cannot set selectorText to invalid pseudo page");
 
+  test(() => {
+    rule.selectorText = "";
+    rule.selectorText = ":notapagepseudo";
+    assert_equals(rule.cssText, "@page { }");
+  }, "Cannot set cssText to invalid pseudo page - return default @page { }");
+
   test(() => {
     assert_equals(rule.parentStyleSheet, sheet);
     sheet.deleteRule(0);
diff --git a/tests/wpt/tests/css/cssom/resources/adoptedstylesheet-adopt-link.css b/tests/wpt/tests/css/cssom/resources/adoptedstylesheet-adopt-link.css
new file mode 100644
index 00000000000..e5fb8ae9659
--- /dev/null
+++ b/tests/wpt/tests/css/cssom/resources/adoptedstylesheet-adopt-link.css
@@ -0,0 +1,3 @@
+div {
+  background-color: green !important;
+}
diff --git a/tests/wpt/tests/css/selectors/nth-child-spurious-brace-crash.html b/tests/wpt/tests/css/selectors/nth-child-spurious-brace-crash.html
new file mode 100644
index 00000000000..5860b25ae4b
--- /dev/null
+++ b/tests/wpt/tests/css/selectors/nth-child-spurious-brace-crash.html
@@ -0,0 +1,6 @@
+<!DOCTYPE html>
+<title>Spurious left-brace in the middle of nth-child</title>
+<link rel="help" href="https://crbug.com/392667948">
+<style>
+s:nth-child(n-{
+</style>
diff --git a/tests/wpt/tests/css/selectors/parsing/parse-slotted.html b/tests/wpt/tests/css/selectors/parsing/parse-slotted.html
index 4b7b4a3b56f..47fafdf2b35 100644
--- a/tests/wpt/tests/css/selectors/parsing/parse-slotted.html
+++ b/tests/wpt/tests/css/selectors/parsing/parse-slotted.html
@@ -14,6 +14,7 @@
   test_valid_selector('::slotted(:not(:nth-last-of-type(2)):not([slot="foo"]))');
   test_valid_selector("::slotted(:first-child)");
   test_valid_selector("::slotted(:hover)");
+  test_valid_selector("::slotted(:has(:first-child:last-child))");
   test_invalid_selector("::slotted");
   test_invalid_selector("::slotted()");
   test_invalid_selector("::slotted(0)");
diff --git a/tests/wpt/tests/custom-elements/form-associated/ElementInternals-reportValidity-delegatesFocus-notref.html b/tests/wpt/tests/custom-elements/form-associated/ElementInternals-reportValidity-delegatesFocus-notref.html
new file mode 100644
index 00000000000..be34f0783f6
--- /dev/null
+++ b/tests/wpt/tests/custom-elements/form-associated/ElementInternals-reportValidity-delegatesFocus-notref.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<title>Custom element with delegatesFocus in Form should show validation message on focus delegated element</title>
+<link rel=help href=https://html.spec.whatwg.org/C/#report-validity-steps>
+
+<form>
+ <input-custom-element></input-custom-element>
+</form>
+
+<script>
+class InputCustomElement extends HTMLElement {
+  constructor() {
+    super();
+
+    this.attachShadow({
+      mode: "open",
+      delegatesFocus: true
+    });
+    this.shadowRoot.innerHTML = '<input>';
+    this.elementInternals = this.attachInternals();
+    this.elementInternals.setValidity({valueMissing: true}, 'value missing');
+  }
+
+  static get formAssociated() {
+    return true;
+  }
+}
+
+customElements.define("input-custom-element", InputCustomElement);
+
+</script>
\ No newline at end of file
diff --git a/tests/wpt/tests/custom-elements/form-associated/ElementInternals-reportValidity-delegatesFocus.html b/tests/wpt/tests/custom-elements/form-associated/ElementInternals-reportValidity-delegatesFocus.html
new file mode 100644
index 00000000000..b4c92ee4694
--- /dev/null
+++ b/tests/wpt/tests/custom-elements/form-associated/ElementInternals-reportValidity-delegatesFocus.html
@@ -0,0 +1,33 @@
+<!DOCTYPE html>
+<title>Custom element with delegatesFocus in Form should show validation message on focus delegated element</title>
+<link rel=mismatch href=ElementInternals-reportValidity-delegatesFocus-notref.html>
+<link rel=help href=https://html.spec.whatwg.org/C/#report-validity-steps>
+
+<form>
+ <input-custom-element></input-custom-element>
+</form>
+
+<script>
+class InputCustomElement extends HTMLElement {
+  constructor() {
+    super();
+
+    this.attachShadow({
+      mode: "open",
+      delegatesFocus: true
+    });
+    this.shadowRoot.innerHTML = '<input>';
+    this.elementInternals = this.attachInternals();
+    this.elementInternals.setValidity({valueMissing: true}, 'value missing');
+  }
+
+  static get formAssociated() {
+    return true;
+  }
+}
+
+customElements.define("input-custom-element", InputCustomElement);
+
+document.querySelector("form").reportValidity();
+
+</script>
\ No newline at end of file
diff --git a/tests/wpt/tests/digital-credentials/allow-attribute.https.html b/tests/wpt/tests/digital-credentials/allow-attribute.https.html
index d988e94cd23..667b84bc704 100644
--- a/tests/wpt/tests/digital-credentials/allow-attribute.https.html
+++ b/tests/wpt/tests/digital-credentials/allow-attribute.https.html
@@ -105,8 +105,9 @@
                         const options = {
                             digital: {
                                 // Results in TypeError when allowed, NotAllowedError when disallowed
-                                providers: [],
+                                requests: [],
                             },
+                            mediation: "required",
                         };
                         const { data } = await new Promise((resolve) => {
                             window.addEventListener("message", resolve, {
@@ -118,14 +119,14 @@
                             );
                         });
                         const { name, message } = data;
+                        const fullMessage = `${iframe.outerHTML} - ${message}`;
                         if (expectIsAllowed) {
-                          assert_true(name == "TypeError" ||
-                                          (name == "NotAllowedError" && message.includes("transient activation")),
-                                      `${iframe.outerHTML} - ${message}`);
+                            assert_true(
+                                name == "TypeError" || name == "NotAllowedError",
+                                fullMessage
+                            );
                         } else {
-                          assert_equals(name, "NotAllowedError", `${iframe.outerHTML} - ${message}`);
-                          assert_false(message.includes("transient activation"),
-                                       `${iframe.outerHTML} - ${message}`);
+                            assert_equals(name, "NotAllowedError", fullMessage);
                         }
                         iframe.remove();
                     }, `Policy to use: ${details.policy}, is cross-origin: ${details.crossOrigin}, is allowed by policy: ${details.expectIsAllowed}`);
diff --git a/tests/wpt/tests/digital-credentials/dc-types.ts b/tests/wpt/tests/digital-credentials/dc-types.ts
index 6ea100c6727..30284e7fad6 100644
--- a/tests/wpt/tests/digital-credentials/dc-types.ts
+++ b/tests/wpt/tests/digital-credentials/dc-types.ts
@@ -1,4 +1,4 @@
-export type ProviderType = "default" | "openid4vp";
+export type Protocol = "default" | "openid4vp";
 export type CredentialMediationRequirement =
   | "conditional"
   | "optional"
@@ -6,11 +6,11 @@ export type CredentialMediationRequirement =
   | "silent";
 
 /**
- * @see https://wicg.github.io/digital-credentials/#dom-identityrequestprovider
+ * @see https://wicg.github.io/digital-credentials/#dom-digitalcredentialrequest
  */
-export interface IdentityRequestProvider {
+export interface DigitalCredentialRequest {
   protocol: string;
-  request: object;
+  data: object;
 }
 
 /**
@@ -18,18 +18,15 @@ export interface IdentityRequestProvider {
  */
 export interface DigitalCredentialRequestOptions {
   /**
-   * The list of identity request providers
+   * The list of credential requests.
    */
-  providers: IdentityRequestProvider[] | any;
+  requests: DigitalCredentialRequest[] | any;
 }
 
 /**
- * @see https://wicg.github.io/digital-credentials/#extensions-to-credentialrequestoptions-dictionary
+ * @see https://wicg.github.io/digital-credentials/#extensions-to-credentialrequestoptions
  */
 export interface CredentialRequestOptions {
-  /**
-   * The digital credential request options.
-   */
   digital: DigitalCredentialRequestOptions;
   mediation: CredentialMediationRequirement;
 }
diff --git a/tests/wpt/tests/digital-credentials/get.tentative.https.html b/tests/wpt/tests/digital-credentials/get.tentative.https.html
index 6de3ed8e90a..a090e1b1432 100644
--- a/tests/wpt/tests/digital-credentials/get.tentative.https.html
+++ b/tests/wpt/tests/digital-credentials/get.tentative.https.html
@@ -86,18 +86,18 @@
   }, "Calling navigator.credentials.get() without an digital member same origin.");
 
   promise_test(async (t) => {
-    for (const provider of [undefined, []]) {
-      const options = makeGetOptions(provider);
+    for (const request of [undefined, []]) {
+      const options = makeGetOptions(request);
       await test_driver.bless("user activation");
       await promise_rejects_js(t, TypeError, navigator.credentials.get(options));
     }
-  }, "navigator.credentials.get() API rejects if there are no providers.");
+  }, "navigator.credentials.get() API rejects if there are no credential request.");
 
   promise_test(async (t) => {
     iframeSameOrigin.focus();
     const { contentWindow: iframeWindow } = iframeSameOrigin;
-    for (const provider of [undefined, []]) {
-      const options = makeGetOptions(provider);
+    for (const request of [undefined, []]) {
+      const options = makeGetOptions(request);
       await test_driver.bless("user activation");
       await promise_rejects_js(
         t,
@@ -105,19 +105,19 @@
         iframeWindow.navigator.credentials.get(options)
       );
     }
-  }, "navigator.credentials.get() API rejects if there are no providers for same-origin iframe.");
+  }, "navigator.credentials.get() API rejects if there are no credential request for same-origin iframe.");
 
   promise_test(async (t) => {
     iframeCrossOrigin.focus();
-    for (const provider of [undefined, []]) {
-      const options = makeGetOptions(provider);
+    for (const request of [undefined, []]) {
+      const options = makeGetOptions(request);
       const result = await sendMessage(iframeCrossOrigin, {
         action: "get",
         options,
       });
       assert_equals(result.constructor, "TypeError");
     }
-  }, "navigator.credentials.get() API rejects if there are no providers in cross-origin iframe.");
+  }, "navigator.credentials.get() API rejects if there are no credential request in cross-origin iframe.");
 
   promise_test(async (t) => {
     const abortController = new AbortController();
diff --git a/tests/wpt/tests/digital-credentials/support/helper.js b/tests/wpt/tests/digital-credentials/support/helper.js
index 0b71ae9822a..71022432652 100644
--- a/tests/wpt/tests/digital-credentials/support/helper.js
+++ b/tests/wpt/tests/digital-credentials/support/helper.js
@@ -1,61 +1,62 @@
 // @ts-check
 // Import the types from the TypeScript file
 /**
- * @typedef {import('../dc-types').ProviderType} ProviderType
- * @typedef {import('../dc-types').IdentityRequestProvider} IdentityRequestProvider
+ * @typedef {import('../dc-types').Protocol} protocol
+ * @typedef {import('../dc-types').DigitalCredentialRequest} DigitalCredentialRequest
  * @typedef {import('../dc-types').DigitalCredentialRequestOptions} DigitalCredentialRequestOptions
  * @typedef {import('../dc-types').CredentialRequestOptions} CredentialRequestOptions
  * @typedef {import('../dc-types').SendMessageData} SendMessageData
  */
+
 /**
- * @param {ProviderType | ProviderType[]} [providersToUse=["default"]]
+ * @param {protocol | protocol[]} [requestsToUse=["default"]]
  * @param {CredentialMediationRequirement} [mediation="required"]
  * @returns {CredentialRequestOptions}
  */
-export function makeGetOptions(providersToUse, mediation = "required") {
-  if (typeof providersToUse === "string") {
-    if (providersToUse === "default" || providersToUse === "openid4vp"){
-      return makeGetOptions([providersToUse], mediation);
+export function makeGetOptions(requestsToUse, mediation = "required") {
+  if (typeof requestsToUse === "string") {
+    if (requestsToUse === "default" || requestsToUse === "openid4vp") {
+      return makeGetOptions([requestsToUse], mediation);
     }
   }
-  if (!Array.isArray(providersToUse) || !providersToUse?.length) {
-    return { digital: { providers: providersToUse }, mediation };
+  if (!Array.isArray(requestsToUse) || !requestsToUse?.length) {
+    return { digital: { requests: requestsToUse }, mediation };
   }
-  const providers = [];
-  for (const provider of providersToUse) {
-    switch (provider) {
+  const requests = [];
+  for (const request of requestsToUse) {
+    switch (request) {
       case "openid4vp":
-        providers.push(makeOID4VPDict());
+        requests.push(makeOID4VPDict());
         break;
       case "default":
-        providers.push(makeIdentityRequestProvider(undefined, undefined));
+        requests.push(makeDigitalCredentialRequest(undefined, undefined));
         break;
       default:
-        throw new Error(`Unknown provider type: ${provider}`);
+        throw new Error(`Unknown request type: ${request}`);
     }
   }
-  return { digital: { providers }, mediation };
+  return { digital: { requests }, mediation };
 }
 /**
  *
  * @param {string} protocol
- * @param {object} request
- * @returns {IdentityRequestProvider}
+ * @param {object} data
+ * @returns {DigitalCredentialRequest}
  */
-function makeIdentityRequestProvider(protocol = "protocol", request = {}) {
+function makeDigitalCredentialRequest(protocol = "protocol", data = {}) {
   return {
     protocol,
-    request,
+    data,
   };
 }
 
 /**
- * Representation of a digital identity object with an OpenID4VP provider.
+ * Representation of an OpenID4VP request.
  *
- * @returns {IdentityRequestProvider}
+ * @returns {DigitalCredentialRequest}
  **/
 function makeOID4VPDict() {
-  return makeIdentityRequestProvider("openid4vp", {
+  return makeDigitalCredentialRequest("openid4vp", {
     // Canonical example of an OpenID4VP request coming soon.
   });
 }
diff --git a/tests/wpt/tests/dom/abort/event.any.js b/tests/wpt/tests/dom/abort/event.any.js
index afc003b94e6..eda769e8d8f 100644
--- a/tests/wpt/tests/dom/abort/event.any.js
+++ b/tests/wpt/tests/dom/abort/event.any.js
@@ -143,9 +143,12 @@ test(t => {
 
 test(t => {
   const reason = new Error('boom');
+  const message = reason.message;
   const signal = AbortSignal.abort(reason);
   assert_true(signal.aborted);
   assert_throws_exactly(reason, () => signal.throwIfAborted());
+  assert_equals(reason.message, message,
+                "abort.reason should not be changed by throwIfAborted()");
 }, "throwIfAborted() should throw abort.reason if signal aborted");
 
 test(t => {
diff --git a/tests/wpt/tests/dom/observable/tentative/observable-from.any.js b/tests/wpt/tests/dom/observable/tentative/observable-from.any.js
index f305d2de670..e204ece52da 100644
--- a/tests/wpt/tests/dom/observable/tentative/observable-from.any.js
+++ b/tests/wpt/tests/dom/observable/tentative/observable-from.any.js
@@ -1437,90 +1437,126 @@ promise_test(async t => {
 test(() => {
   const results = [];
   const iterable = {
-    impl() {
-      return {
-        next() {
-          results.push('next() running');
-          return {done: true};
-        }
+    getter() {
+      results.push('GETTER called');
+      return () => {
+        results.push('Obtaining iterator');
+        return {
+          next() {
+            results.push('next() running');
+            return {done: true};
+          }
+        };
       };
     }
   };
 
-  iterable[Symbol.iterator] = iterable.impl;
+  Object.defineProperty(iterable, Symbol.iterator, {
+    get: iterable.getter
+  });
   {
     const source = Observable.from(iterable);
+    assert_array_equals(results, ["GETTER called"]);
     source.subscribe({}, {signal: AbortSignal.abort()});
-    assert_array_equals(results, []);
+    assert_array_equals(results, ["GETTER called"]);
   }
   iterable[Symbol.iterator] = undefined;
-  iterable[Symbol.asyncIterator] = iterable.impl;
+  Object.defineProperty(iterable, Symbol.asyncIterator, {
+    get: iterable.getter
+  });
   {
     const source = Observable.from(iterable);
+    assert_array_equals(results, ["GETTER called", "GETTER called"]);
     source.subscribe({}, {signal: AbortSignal.abort()});
-    assert_array_equals(results, []);
+    assert_array_equals(results, ["GETTER called", "GETTER called"]);
   }
 }, "from(): Subscribing to an iterable Observable with an aborted signal " +
    "does not call next()");
 
 test(() => {
-  const results = [];
-  const ac = new AbortController();
+  let results = [];
 
   const iterable = {
-    [Symbol.iterator]() {
-      ac.abort();
-      return {
-        val: 0,
-        next() {
-          results.push('next() called');
-          return {done: true};
-        },
-        return() {
-          results.push('return() called');
-        }
-      };
-    }
- };
+    controller: null,
+    calledOnce: false,
+    getter() {
+      results.push('GETTER called');
+      if (!this.calledOnce) {
+        this.calledOnce = true;
+        return () => {
+          results.push('NOT CALLED');
+          // We don't need to return anything here. The only time this path is
+          // hit is during `Observable.from()` which doesn't actually obtain an
+          // iterator. It just samples the iterable protocol property to ensure
+          // that it's valid.
+        };
+      }
 
-  const source = Observable.from(iterable);
-  source.subscribe({
-    next: v => results.push(v),
-    complete: () => results.push('complete'),
-  }, {signal: ac.signal});
-
-  assert_array_equals(results, []);
-}, "from(): When iterable conversion aborts the subscription, next() is " +
-   "never called");
-test(() => {
-  const results = [];
-  const ac = new AbortController();
-
-  const iterable = {
-    [Symbol.asyncIterator]() {
-      ac.abort();
-      return {
-        val: 0,
-        next() {
-          results.push('next() called');
-          return {done: true};
-        },
-        return() {
-          results.push('return() called');
-        }
+      // This path is only called the second time the iterator protocol getter
+      // is run.
+      this.controller.abort();
+      return () => {
+        results.push('iterator obtained');
+        return {
+          val: 0,
+          next() {
+            results.push('next() called');
+            return {done: true};
+          },
+          return() {
+            results.push('return() called');
+          }
+        };
       };
     }
   };
 
-  const source = Observable.from(iterable);
-  source.subscribe({
-    next: v => results.push(v),
-    complete: () => results.push('complete'),
-  }, {signal: ac.signal});
+  // Test for sync iterators.
+  {
+    const ac = new AbortController();
+    iterable.controller = ac;
+    Object.defineProperty(iterable, Symbol.iterator, {
+      get: iterable.getter,
+    });
 
-  assert_array_equals(results, []);
-}, "from(): When async iterable conversion aborts the subscription, next() " +
-   "is never called");
+    const source = Observable.from(iterable);
+    assert_false(ac.signal.aborted, "[Sync iterator]: signal is not yet aborted after from() conversion");
+    assert_array_equals(results, ["GETTER called"]);
+
+    source.subscribe({
+      next: n => results.push(n),
+      complete: () => results.push('complete'),
+    }, {signal: ac.signal});
+    assert_true(ac.signal.aborted, "[Sync iterator]: signal is aborted during subscription");
+    assert_array_equals(results, ["GETTER called", "GETTER called", "iterator obtained"]);
+  }
+
+  results = [];
+
+  // Test for async iterators.
+  {
+    // Reset `iterable` so it can be reused.
+    const ac = new AbortController();
+    iterable.controller = ac;
+    iterable.calledOnce = false;
+    iterable[Symbol.iterator] = undefined;
+    Object.defineProperty(iterable, Symbol.asyncIterator, {
+      get: iterable.getter
+    });
+
+    const source = Observable.from(iterable);
+    assert_false(ac.signal.aborted, "[Async iterator]: signal is not yet aborted after from() conversion");
+    assert_array_equals(results, ["GETTER called"]);
+
+    source.subscribe({
+      next: n => results.push(n),
+      complete: () => results.push('complete'),
+    }, {signal: ac.signal});
+    assert_true(ac.signal.aborted, "[Async iterator]: signal is aborted during subscription");
+    assert_array_equals(results, ["GETTER called", "GETTER called", "iterator obtained"]);
+  }
+}, "from(): When iterable conversion aborts the subscription, next() is " +
+   "never called");
 
 // This test asserts some very subtle behavior with regard to async iterables
 // and a mid-subscription signal abort. Specifically it detects that a signal
@@ -1617,3 +1653,79 @@ test(() => {
   ac.abort(); // Must do nothing!
   assert_array_equals(results, [0, 1, 2, 3, 'complete']);
 }, "from(): Abort after complete does NOT call IteratorRecord#return()");
+
+test(() => {
+  const controller = new AbortController();
+  // Invalid @@asyncIterator protocol that also aborts the subscription. By the
+  // time the invalid-ness of the protocol is detected, the controller has been
+  // aborted, meaning that invalid-ness cannot manifest itself in the form of an
+  // error that goes to the Observable's subscriber. Instead, it gets reported
+  // to the global.
+  const asyncIterable = {
+    calledOnce: false,
+    get[Symbol.asyncIterator]() {
+      // This `calledOnce` path is to ensure the Observable first converts
+      // correctly via `Observable.from()`, but *later* fails in the path where
+      // `@@asyncIterator` is null.
+      if (this.calledOnce) {
+        controller.abort();
+        return null;
+      } else {
+        this.calledOnce = true;
+        return this.validImplementation;
+      }
+    },
+    validImplementation() {
+      controller.abort();
+      return null;
+    }
+  };
+
+  let reportedError = null;
+  self.addEventListener("error", e => reportedError = e.error, {once: true});
+
+  let errorThrown = null;
+  const observable = Observable.from(asyncIterable);
+  observable.subscribe({
+    error: e => errorThrown = e,
+  }, {signal: controller.signal});
+
+  assert_equals(errorThrown, null, "Protocol error is not surfaced to the Subscriber");
+
+  assert_not_equals(reportedError, null, "Protocol error is reported to the global");
+  assert_true(reportedError instanceof TypeError);
+}, "Invalid async iterator protocol error is surfaced before Subscriber#signal is consulted");
+
+test(() => {
+  const controller = new AbortController();
+  const iterable = {
+    calledOnce: false,
+    get[Symbol.iterator]() {
+      if (this.calledOnce) {
+        controller.abort();
+        return null;
+      } else {
+        this.calledOnce = true;
+        return this.validImplementation;
+      }
+    },
+    validImplementation() {
+      controller.abort();
+      return null;
+    }
+  };
+
+  let reportedError = null;
+  self.addEventListener("error", e => reportedError = e.error, {once: true});
+
+  let errorThrown = null;
+  const observable = Observable.from(iterable);
+  observable.subscribe({
+    error: e => errorThrown = e,
+  }, {signal: controller.signal});
+
+  assert_equals(errorThrown, null, "Protocol error is not surfaced to the Subscriber");
+
+  assert_not_equals(reportedError, null, "Protocol error is reported to the global");
+  assert_true(reportedError instanceof TypeError);
+}, "Invalid iterator protocol error is surfaced before Subscriber#signal is consulted");
diff --git a/tests/wpt/tests/editing/data/insertorderedlist.js b/tests/wpt/tests/editing/data/insertorderedlist.js
index 71aacdd9c27..1e67f50c959 100644
--- a/tests/wpt/tests/editing/data/insertorderedlist.js
+++ b/tests/wpt/tests/editing/data/insertorderedlist.js
@@ -412,9 +412,9 @@ var browserTests = [
     {"insertorderedlist":[false,false,"",false,true,""]}],
 ["<ul><li>[foo]<ul><li>bar</ul><li>baz</ul>",
     [["insertorderedlist",""]],
-    "<ol><li>[foo]</li></ol><ul><ul><li>bar</li></ul><li>baz</li></ul>",
+    "<ol><li>[foo]<ul><li>bar</li></ul></li></ol><ul><li>baz</li></ul>",
     [true],
-    {"insertorderedlist":[false,false,"",false,true,""]}],
+    {"insertorderedlist":[false,false,"",false,false,""]}],
 ["<ul><li>[foo]</li><ul><li>bar</ul><li>baz</ul>",
     [["insertorderedlist",""]],
     "<ol><li>[foo]</li></ol><ul><ul><li>bar</li></ul><li>baz</li></ul>",
@@ -422,9 +422,9 @@ var browserTests = [
     {"insertorderedlist":[false,false,"",false,true,""]}],
 ["<ul><li>foo<li>[bar]<ul><li>baz</ul><li>quz</ul>",
     [["insertorderedlist",""]],
-    "<ul><li>foo</li></ul><ol><li>[bar]</li></ol><ul><ul><li>baz</li></ul><li>quz</li></ul>",
+    "<ul><li>foo</li></ul><ol><li>[bar]<ul><li>baz</li></ul></li></ol><ul><li>quz</li></ul>",
     [true],
-    {"insertorderedlist":[false,false,"",false,true,""]}],
+    {"insertorderedlist":[false,false,"",false,false,""]}],
 ["<ul><li>foo<li>[bar]</li><ul><li>baz</ul><li>quz</ul>",
     [["insertorderedlist",""]],
     "<ul><li>foo</li></ul><ol><li>[bar]</li></ol><ul><ul><li>baz</li></ul><li>quz</li></ul>",
@@ -447,9 +447,9 @@ var browserTests = [
     {"insertorderedlist":[false,false,"",false,true,""]}],
 ["<ul><li>[foo<ul><li>bar]</ul><li>baz</ul>",
     [["insertorderedlist",""]],
-    "<ol><li>[foo</li><ol><li>bar]</li></ol></ol><ul><li>baz</li></ul>",
+    "<ol><li>[foo<ol><li>bar]</li></ol></li></ol><ul><li>baz</li></ul>",
     [true],
-    {"insertorderedlist":[false,false,"",false,true,""]}],
+    {"insertorderedlist":[false,false,"",false,false,""]}],
 ["<ul><li>foo<ul><li>b[ar</ul><li>b]az</ul>",
     [["insertorderedlist",""]],
     "<ul><li>foo</li></ul><ol><ol><li>b[ar</li></ol><li>b]az</li></ol>",
@@ -462,9 +462,9 @@ var browserTests = [
     {"insertorderedlist":[false,false,"",false,true,""]}],
 ["<ul><li>[foo]<ul><li>bar</ul>baz</ul>",
     [["insertorderedlist",""]],
-    "<ol><li>[foo]</li></ol><ul><ul><li>bar</li></ul><li>baz</li></ul>",
+    "<ol><li>[foo]<ul><li>bar</li></ul>baz</li></ol>",
     [true],
-    {"insertorderedlist":[false,false,"",false,true,""]}],
+    {"insertorderedlist":[false,false,"",false,false,""]}],
 ["<ul><li>foo<ul><li>[bar]</ul>baz</ul>",
     [["insertorderedlist",""]],
     "<ul><li>foo</li><ol><li>[bar]</li></ol><li>baz</li></ul>",
@@ -472,14 +472,14 @@ var browserTests = [
     {"insertorderedlist":[false,false,"",false,true,""]}],
 ["<ul><li>foo<ul><li>bar</ul>[baz]</ul>",
     [["insertorderedlist",""]],
-    "<ul><li>foo</li><ul><li>bar</li></ul></ul><ol><li>[baz]</li></ol>",
+    "<ol><li>foo<ul><li>bar</li></ul>[baz]</li></ol>",
     [true],
-    {"insertorderedlist":[false,false,"",false,true,""]}],
+    {"insertorderedlist":[false,false,"",false,false,""]}],
 ["<ul><li>[foo<ul><li>bar]</ul>baz</ul>",
     [["insertorderedlist",""]],
-    "<ol><li>[foo</li><ol><li>bar]</li></ol></ol><ul><li>baz</li></ul>",
+    "<ol><li>[foo<ol><li>bar]</li></ol>baz</li></ol>",
     [true],
-    {"insertorderedlist":[false,false,"",false,true,""]}],
+    {"insertorderedlist":[false,false,"",false,false,""]}],
 ["foo<ol><li>bar</ol><ul><li>[baz]</ul>quz",
     [["insertorderedlist",""]],
     "foo<ol><li>bar</li><li>[baz]</li></ol>quz",
diff --git a/tests/wpt/tests/editing/data/insertunorderedlist.js b/tests/wpt/tests/editing/data/insertunorderedlist.js
index 6401e8d9675..93afe7d41c1 100644
--- a/tests/wpt/tests/editing/data/insertunorderedlist.js
+++ b/tests/wpt/tests/editing/data/insertunorderedlist.js
@@ -197,9 +197,9 @@ var browserTests = [
     {"insertunorderedlist":[false,false,"",false,true,""]}],
 ["<ol><li>[foo]<ol><li>bar</ol><li>baz</ol>",
     [["insertunorderedlist",""]],
-    "<ul><li>[foo]</li></ul><ol><ol><li>bar</li></ol><li>baz</li></ol>",
+    "<ul><li>[foo]<ol><li>bar</li></ol></li></ul><ol><li>baz</li></ol>",
     [true],
-    {"insertunorderedlist":[false,false,"",false,true,""]}],
+    {"insertunorderedlist":[false,false,"",false,false,""]}],
 ["<ol><li>[foo]</li><ol><li>bar</ol><li>baz</ol>",
     [["insertunorderedlist",""]],
     "<ul><li>[foo]</li></ul><ol><ol><li>bar</li></ol><li>baz</li></ol>",
@@ -207,9 +207,9 @@ var browserTests = [
     {"insertunorderedlist":[false,false,"",false,true,""]}],
 ["<ol><li>foo<li>[bar]<ol><li>baz</ol><li>quz</ol>",
     [["insertunorderedlist",""]],
-    "<ol><li>foo</li></ol><ul><li>[bar]</li></ul><ol><ol><li>baz</li></ol><li>quz</li></ol>",
+    "<ol><li>foo</li></ol><ul><li>[bar]<ol><li>baz</li></ol></li></ul><ol><li>quz</li></ol>",
     [true],
-    {"insertunorderedlist":[false,false,"",false,true,""]}],
+    {"insertunorderedlist":[false,false,"",false,false,""]}],
 ["<ol><li>foo<li>[bar]</li><ol><li>baz</ol><li>quz</ol>",
     [["insertunorderedlist",""]],
     "<ol><li>foo</li></ol><ul><li>[bar]</li></ul><ol><ol><li>baz</li></ol><li>quz</li></ol>",
@@ -232,9 +232,9 @@ var browserTests = [
     {"insertunorderedlist":[false,false,"",false,true,""]}],
 ["<ol><li>[foo<ol><li>bar]</ol><li>baz</ol>",
     [["insertunorderedlist",""]],
-    "<ul><li>[foo</li><ul><li>bar]</li></ul></ul><ol><li>baz</li></ol>",
+    "<ul><li>[foo<ul><li>bar]</li></ul></li></ul><ol><li>baz</li></ol>",
     [true],
-    {"insertunorderedlist":[false,false,"",false,true,""]}],
+    {"insertunorderedlist":[false,false,"",false,false,""]}],
 ["<ol><li>foo<ol><li>b[ar</ol><li>b]az</ol>",
     [["insertunorderedlist",""]],
     "<ol><li>foo</li></ol><ul><ul><li>b[ar</li></ul><li>b]az</li></ul>",
@@ -247,9 +247,9 @@ var browserTests = [
     {"insertunorderedlist":[false,false,"",false,true,""]}],
 ["<ol><li>[foo]<ol><li>bar</ol>baz</ol>",
     [["insertunorderedlist",""]],
-    "<ul><li>[foo]</li></ul><ol><ol><li>bar</li></ol><li>baz</li></ol>",
+    "<ul><li>[foo]<ol><li>bar</li></ol>baz</li></ul>",
     [true],
-    {"insertunorderedlist":[false,false,"",false,true,""]}],
+    {"insertunorderedlist":[false,false,"",false,false,""]}],
 ["<ol><li>foo<ol><li>[bar]</ol>baz</ol>",
     [["insertunorderedlist",""]],
     "<ol><li>foo</li><ul><li>[bar]</li></ul><li>baz</li></ol>",
@@ -257,14 +257,14 @@ var browserTests = [
     {"insertunorderedlist":[false,false,"",false,true,""]}],
 ["<ol><li>foo<ol><li>bar</ol>[baz]</ol>",
     [["insertunorderedlist",""]],
-    "<ol><li>foo</li><ol><li>bar</li></ol></ol><ul><li>[baz]</li></ul>",
+    "<ul><li>foo<ol><li>bar</li></ol>[baz]</li></ul>",
     [true],
-    {"insertunorderedlist":[false,false,"",false,true,""]}],
+    {"insertunorderedlist":[false,false,"",false,false,""]}],
 ["<ol><li>[foo<ol><li>bar]</ol>baz</ol>",
     [["insertunorderedlist",""]],
-    "<ul><li>[foo</li><ul><li>bar]</li></ul></ul><ol><li>baz</li></ol>",
+    "<ul><li>[foo<ul><li>bar]</li></ul>baz</li></ul>",
     [true],
-    {"insertunorderedlist":[false,false,"",false,true,""]}],
+    {"insertunorderedlist":[false,false,"",false,false,""]}],
 ["<ul><li>foo<li>[bar]<li>baz</ul>",
     [["defaultparagraphseparator","div"],["insertunorderedlist",""]],
     "<ul><li>foo</li></ul><div>[bar]</div><ul><li>baz</li></ul>",
diff --git a/tests/wpt/tests/editing/include/editor-test-utils.js b/tests/wpt/tests/editing/include/editor-test-utils.js
index 0bf2d4b2fae..f88a9bac3b4 100644
--- a/tests/wpt/tests/editing/include/editor-test-utils.js
+++ b/tests/wpt/tests/editing/include/editor-test-utils.js
@@ -30,6 +30,11 @@ class EditorTestUtils {
     return this.window.getSelection();
   }
 
+  // Return a modifier to delete per word.
+  get deleteWordModifier() {
+    return this.window.navigator.platform.includes("Mac") ? this.kAlt : this.kControl;
+  }
+
   sendKey(key, modifier) {
     if (!modifier) {
       // send_keys requires element in the light DOM.
diff --git a/tests/wpt/tests/editing/other/delete-last-word-in-inline-block-editing-host.html b/tests/wpt/tests/editing/other/delete-last-word-in-inline-block-editing-host.html
new file mode 100644
index 00000000000..3b3a60829f3
--- /dev/null
+++ b/tests/wpt/tests/editing/other/delete-last-word-in-inline-block-editing-host.html
@@ -0,0 +1,29 @@
+<!doctype html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>Preserve trailing white-space after deleting the last word in `display: inline-block`</title>
+<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="../include/editor-test-utils.js"></script>
+<script>
+"use strict";
+
+document.addEventListener("DOMContentLoaded", () => {
+  promise_test(async () => {
+    const editingHost = document.querySelector("span[contenteditable]");
+    const utils = new EditorTestUtils(editingHost);
+    utils.setupEditingHost("a b[]");
+    await utils.sendBackspaceKey(utils.deleteWordModifier);
+    assert_in_array(editingHost.innerHTML, ["a <br>", "a&nbsp;"]);
+  });
+}, {once: true});
+</script>
+</head>
+<body>
+  <span contenteditable style="display: inline-block"></span>
+</body>
+</html>
diff --git a/tests/wpt/tests/editing/other/html-text-copy-paste-of-anchor-with-href-in-content-editable.html b/tests/wpt/tests/editing/other/html-text-copy-paste-of-anchor-with-href-in-content-editable.html
index 5724b59ada4..c7ab18a3df6 100644
--- a/tests/wpt/tests/editing/other/html-text-copy-paste-of-anchor-with-href-in-content-editable.html
+++ b/tests/wpt/tests/editing/other/html-text-copy-paste-of-anchor-with-href-in-content-editable.html
@@ -2,30 +2,35 @@
 <meta charset=utf-8>
 <title>This test is for testing HTML text copy paste of anchor tag containing href
 inside contenteditable.</title>
-<script src=/resources/testharness.js></script>
-<script src=/resources/testharnessreport.js></script>
+<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="../include/editor-test-utils.js"></script>
 <div contenteditable="true" id="contentCopy"><a href="www.crbug.com/356548150">AnchorTagWithHREF</a></div>
 <div contenteditable="true" id="contentPaste"></div>
 <script>
-
-function runTests() {
-    test(function() {
+    document.addEventListener("DOMContentLoaded", () => {
+      promise_test(async () => {
         const range = document.createRange();
-        const contentToCopy = document.getElementById('contentCopy');
+        const contentToCopy = document.getElementById("contentCopy");
         range.selectNodeContents(contentToCopy);
         const selection = window.getSelection();
-        const anchorToCopy = contentToCopy.querySelector('a');
+        const anchorToCopy = contentToCopy.querySelector("a");
         selection.removeAllRanges();
         selection.addRange(range);
-        document.execCommand('copy');
-        assert_true(anchorToCopy.hasAttribute('href'));
-        const pasteTarget = document.getElementById('contentPaste');
-        pasteTarget.focus();
-        document.execCommand('paste');
-        const pastedAnchor = pasteTarget.querySelector('a');
-        assert_true(pastedAnchor.hasAttribute('href'));
-    }, "Attribute href is missing after copy paste of anchor tag");
-}
 
-window.addEventListener("load", runTests, {once: true});
-</script>
+        // Send copy command
+        const utils = new EditorTestUtils(anchorToCopy);
+        await utils.sendCopyShortcutKey();
+        assert_true(anchorToCopy.hasAttribute("href"));
+
+        const pasteTarget = document.getElementById("contentPaste");
+        pasteTarget.focus();
+        await utils.sendPasteShortcutKey();
+        const pastedAnchor = pasteTarget.querySelector("a");
+        assert_true(pastedAnchor.hasAttribute("href"));
+      }, "Attribute href is missing after copy paste of anchor tag");
+    })
+</script>
\ No newline at end of file
diff --git a/tests/wpt/tests/editing/other/paste-in-list-with-inline-style.tentative.html b/tests/wpt/tests/editing/other/paste-in-list-with-inline-style.tentative.html
index 97710e805dd..7eac635e8de 100644
--- a/tests/wpt/tests/editing/other/paste-in-list-with-inline-style.tentative.html
+++ b/tests/wpt/tests/editing/other/paste-in-list-with-inline-style.tentative.html
@@ -1,30 +1,31 @@
 <!doctype html>
 <meta charset=utf-8>
 <title>This tests for a bug in ReplaceSelectionCommand where styles are lost during paste.</title>
-<script src=/resources/testharness.js></script>
-<script src=/resources/testharnessreport.js></script>
+<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="../include/editor-test-utils.js"></script>
 <span id="copy" style="font-weight: bold;">copy this</span>
-<div id="paste" contenteditable="true"> <ul><li id="list1"></li></ul></div>
-<div id="log"></div>
+<div id="paste" contenteditable="true"><ul><li id="list1"></li></ul></div>
 <script>
-"use strict";
+    document.addEventListener("DOMContentLoaded", () => {
+      promise_test(async () => {
+        const contentToCopy = document.getElementById("copy");
+        const selection = window.getSelection();
+        selection.removeAllRanges();
+        selection.selectAllChildren(contentToCopy);
 
-setup({explicit_done: true});
+        // Send copy command
+        const utils = new EditorTestUtils(contentToCopy);
+        await utils.sendCopyShortcutKey();
 
-function runTests() {
-    test(function() {
-        var selection = window.getSelection();
-        selection.selectAllChildren(document.getElementById('copy'));
-        document.execCommand('Copy');
-        var sample = document.getElementById('list1');
+        const sample = document.getElementById("list1");
         selection.collapse(sample);
-        document.execCommand('Paste');
-
+        await utils.sendPasteShortcutKey();
         assert_equals(sample.innerHTML, '<span style="font-weight: 700;">copy this</span>');
         assert_true(selection.isCollapsed);
-    }, "");
-    done();
-}
-
-window.addEventListener("load", runTests, {once: true});
-</script>
+      }, "");
+    })
+</script>
\ No newline at end of file
diff --git a/tests/wpt/tests/editing/run/delete-chars-following-collapsible-white-space.html b/tests/wpt/tests/editing/run/delete-chars-following-collapsible-white-space.html
index 7340a9ebf72..077dd4180ed 100644
--- a/tests/wpt/tests/editing/run/delete-chars-following-collapsible-white-space.html
+++ b/tests/wpt/tests/editing/run/delete-chars-following-collapsible-white-space.html
@@ -154,8 +154,6 @@ addEventListener("load", () => {
       }
     }, `Backspace when ${data.init} after extending selection backward`);
   }
-  const deleteWordModifier =
-    this.window.navigator.platform.includes("Mac") ? utils.kAlt : utils.kControl;
   for (const data of [
     {
       init: "<p> abc[]</p>",
@@ -265,14 +263,14 @@ addEventListener("load", () => {
   ]) {
     promise_test(async () => {
       utils.setupEditingHost(data.init);
-      await utils.sendBackspaceKey(deleteWordModifier);
+      await utils.sendBackspaceKey(utils.deleteWordModifier);
       if (Array.isArray(data.expected)) {
         assert_in_array(editingHost.innerHTML, data.expected);
       } else {
         assert_equals(editingHost.innerHTML, data.expected);
       }
     }, `${
-      deleteWordModifier == utils.kControl ? "Ctrl" : "Alt"
+      utils.deleteWordModifier == utils.kControl ? "Ctrl" : "Alt"
     }+Backspace when "${data.init}"`);
   }
 }, {once: true});
diff --git a/tests/wpt/tests/editing/run/forwarddelete-chars-following-collapsible-white-space.html b/tests/wpt/tests/editing/run/forwarddelete-chars-following-collapsible-white-space.html
index 9cfdd9879ec..2c42f0c91d0 100644
--- a/tests/wpt/tests/editing/run/forwarddelete-chars-following-collapsible-white-space.html
+++ b/tests/wpt/tests/editing/run/forwarddelete-chars-following-collapsible-white-space.html
@@ -154,8 +154,6 @@ addEventListener("load", () => {
       }
     }, `Delete when ${data.init} after extending selection forward`);
   }
-  const deleteWordModifier =
-    this.window.navigator.platform.includes("Mac") ? utils.kAlt : utils.kControl;
   for (const data of [
     {
       init: "<p> []abc</p>",
@@ -265,14 +263,14 @@ addEventListener("load", () => {
   ]) {
     promise_test(async () => {
       utils.setupEditingHost(data.init);
-      await utils.sendDeleteKey(deleteWordModifier);
+      await utils.sendDeleteKey(utils.deleteWordModifier);
       if (Array.isArray(data.expected)) {
         assert_in_array(editingHost.innerHTML, data.expected);
       } else {
         assert_equals(editingHost.innerHTML, data.expected);
       }
     }, `${
-      deleteWordModifier == utils.kControl ? "Ctrl" : "Alt"
+      utils.deleteWordModifier == utils.kControl ? "Ctrl" : "Alt"
     }+Delete when "${data.init}"`);
   }
 }, {once: true});
diff --git a/tests/wpt/tests/editing/run/typing-text-in-direct-child-of-editing-host.html b/tests/wpt/tests/editing/run/typing-text-in-direct-child-of-editing-host.html
new file mode 100644
index 00000000000..8e7746c03d9
--- /dev/null
+++ b/tests/wpt/tests/editing/run/typing-text-in-direct-child-of-editing-host.html
@@ -0,0 +1,109 @@
+<!doctype html>
+<html>
+<head>
+<meta charset="utf-8">
+<meta name="timeout" content="long">
+<meta name="variant" content="?white-space=normal">
+<meta name="variant" content="?white-space=pre">
+<meta name="variant" content="?white-space=pre-line">
+<meta name="variant" content="?white-space=pre-wrap">
+<title>Typing in `Text` which is direct child of editing host</title>
+<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="../include/editor-test-utils.js"></script>
+<script>
+"use strict";
+
+const searchParams = new URLSearchParams(document.location.search);
+const whiteSpace = searchParams.get("white-space");
+const mustUseBR = whiteSpace == "normal";
+const collapseWhiteSpaces = whiteSpace == "normal" || whiteSpace == "pre-line";
+
+/**
+ * Some browsers may use preformatted linefeed only in direct child of the
+ * editing host.  This is intended to check the basic behavior rather than
+ * compatibility between browsers.
+ */
+
+addEventListener("DOMContentLoaded", () => {
+  const editingHost = document.querySelector("div[contenteditable]");
+  editingHost.style.whiteSpace = whiteSpace;
+  const utils = new EditorTestUtils(editingHost);
+  editingHost.focus();
+
+  promise_test(async () => {
+    await utils.sendKey("a");
+    await utils.sendKey("\uE00D");
+    if (mustUseBR) {
+      assert_in_array(editingHost.innerHTML, ["a&nbsp;", "a <br>"], "Typed white-space should be visible");
+    } else if (collapseWhiteSpaces) {
+      assert_in_array(editingHost.innerHTML, ["a&nbsp;", "a <br>", "a \n"], "Typed white-space should be visible");
+    } else {
+      assert_equals(editingHost.innerHTML, "a ", "Typed white-space should be visible");
+    }
+    await utils.sendKey("b");
+    assert_equals(editingHost.innerHTML, "a b", `Typing "b" after white-space should keep the white-space visible`);
+  }, `Typing "a b"`);
+  promise_test(async () => {
+    utils.setupEditingHost("a b[]");
+    await utils.sendBackspaceKey();
+    if (mustUseBR) {
+      assert_in_array(editingHost.innerHTML, ["a&nbsp;", "a <br>"], "Previous white-space should be visible");
+    } else if (collapseWhiteSpaces) {
+      assert_in_array(editingHost.innerHTML, ["a&nbsp;", "a <br>", "a \n"], "Previous white-space should be visible");
+    } else {
+      assert_equals(editingHost.innerHTML, "a ", "Previous white-space should be visible");
+    }
+  }, `Backspace when "a b[]"`);
+  promise_test(async () => {
+    utils.setupEditingHost("a&nbsp;b[]");
+    await utils.sendBackspaceKey();
+    if (mustUseBR) {
+      assert_in_array(editingHost.innerHTML, ["a&nbsp;", "a <br>"], "Previous NBSP should be visible");
+    } else if (collapseWhiteSpaces) {
+      assert_in_array(editingHost.innerHTML, ["a&nbsp;", "a <br>", "a \n"], "Previous NBSP should be visible");
+    } else {
+      assert_equals(editingHost.innerHTML, "a&nbsp;", "Previous NBSP should be visible and shouldn't be converted to ASCII space");
+    }
+  }, `Backspace when "a&nbsp;b[]"`);
+  promise_test(async () => {
+    utils.setupEditingHost("X[]");
+    await utils.sendKey("\uE00D");
+    await utils.sendKey("\uE00D");
+    await utils.sendKey("\uE00D");
+    if (mustUseBR) {
+      assert_in_array(
+        editingHost.innerHTML,
+        ["X&nbsp; &nbsp;", "X &nbsp;&nbsp;", "X&nbsp;&nbsp; <br>", "X &nbsp; <br>"],
+        "Typed spaces should be visible but must contain one ASCII white-space for line break opportunities"
+      );
+    } else if (collapseWhiteSpaces) {
+      assert_in_array(
+        editingHost.innerHTML,
+        ["X&nbsp; &nbsp;", "X &nbsp;&nbsp;", "X&nbsp;&nbsp; <br>", "X &nbsp; <br>", "X&nbsp;&nbsp; \n", "X &nbsp; \n"],
+        "Typed spaces should be visible but must contain one ASCII white-space for line break opportunities"
+      );
+    } else {
+      assert_equals(editingHost.innerHTML, "X   ", "Typed spaces should be visible");
+    }
+    await utils.sendKey("Y");
+    if (collapseWhiteSpaces) {
+      assert_in_array(
+        editingHost.innerHTML,
+        ["X&nbsp; &nbsp;Y", "X &nbsp; Y", "X &nbsp;&nbsp;Y", "X&nbsp;&nbsp; Y"],
+        "Previous white-spaces should be visible"
+      );
+    } else {
+      assert_equals(editingHost.innerHTML, "X   Y", "Previous white-spaces should be visible");
+    }
+  }, `Typing multiple white-spaces and type "Y"`);
+}, {once: true});
+</script>
+</head>
+<body>
+  <div contenteditable></div>
+</body>
+</html>
diff --git a/tests/wpt/tests/fedcm/fedcm-login-status/confirm-idp-login.https.html b/tests/wpt/tests/fedcm/fedcm-login-status/confirm-idp-login.https.html
index 0f8df72b615..174cdafd502 100644
--- a/tests/wpt/tests/fedcm/fedcm-login-status/confirm-idp-login.https.html
+++ b/tests/wpt/tests/fedcm/fedcm-login-status/confirm-idp-login.https.html
@@ -26,7 +26,7 @@ fedcm_test(async t => {
   // Manifest selection only persists for a single fetch, so we need to set it
   // again because Chrome's implementation re-fetches the manifest as well, not
   // just the accounts endpoint.
-  // (This is not technically spec-compliant)
+  // TODO(crbug.com/392661388): This is not technically spec-compliant
   await select_manifest(t, test_options);
   await window.test_driver.click_fedcm_dialog_button("ConfirmIdpLoginContinue");
 
diff --git a/tests/wpt/tests/fedcm/fedcm-login-status/login-page-broken.https.html b/tests/wpt/tests/fedcm/fedcm-login-status/login-page-broken.https.html
new file mode 100644
index 00000000000..cda9ee4fd50
--- /dev/null
+++ b/tests/wpt/tests/fedcm/fedcm-login-status/login-page-broken.https.html
@@ -0,0 +1,37 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>FedCM IDP log-in status API tests</title>
+<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 {request_options_with_mediation_required,
+        fedcm_test,
+        fedcm_get_dialog_type_promise,
+        select_manifest,
+        mark_signed_in} from '../support/fedcm-helper.sub.js';
+
+fedcm_test(async t => {
+  await mark_signed_in();
+
+  let test_options = request_options_with_mediation_required("manifest_broken_login.json");
+  await select_manifest(t, test_options);
+
+  let cred_promise = navigator.credentials.get(test_options);
+  let type = await fedcm_get_dialog_type_promise(t);
+  assert_equals(type, "ConfirmIdpLogin");
+
+  // Manifest selection only persists for a single fetch, so we need to set it
+  // again because Chrome's implementation re-fetches the manifest as well, not
+  // just the accounts endpoint.
+  // TODO(crbug.com/392661388): This is not technically spec-compliant
+  await select_manifest(t, test_options);
+  await window.test_driver.click_fedcm_dialog_button("ConfirmIdpLoginContinue");
+
+  // Because the login page never sends a signin status header, we
+  // expect a promise rejection.
+  return promise_rejects_dom(t, 'NetworkError', cred_promise);
+}, 'Tests that the promise does get resolved if a login page does not send a signin status header.');
+</script>
diff --git a/tests/wpt/tests/fedcm/support/idp_close.html b/tests/wpt/tests/fedcm/support/idp_close.html
new file mode 100644
index 00000000000..84c0dfa88b7
--- /dev/null
+++ b/tests/wpt/tests/fedcm/support/idp_close.html
@@ -0,0 +1,7 @@
+<!DOCTYPE html>
+<script>
+async function doClose() {
+  IdentityProvider.close();
+}
+window.onload = doClose;
+</script>
diff --git a/tests/wpt/tests/fedcm/support/manifest_broken_login.json b/tests/wpt/tests/fedcm/support/manifest_broken_login.json
new file mode 100644
index 00000000000..d42bf8fb269
--- /dev/null
+++ b/tests/wpt/tests/fedcm/support/manifest_broken_login.json
@@ -0,0 +1,7 @@
+{
+  "accounts_endpoint": "no_accounts.py",
+  "client_metadata_endpoint": "client_metadata.py",
+  "id_assertion_endpoint": "token.py",
+  "disconnect_endpoint": "disconnect.py",
+  "login_url": "idp_close.html"
+}
diff --git a/tests/wpt/tests/fenced-frame/resolve-to-config-promise.https.html b/tests/wpt/tests/fenced-frame/resolve-to-config-promise.https.html
index 97df37ef2bc..eae6ce6b88d 100644
--- a/tests/wpt/tests/fenced-frame/resolve-to-config-promise.https.html
+++ b/tests/wpt/tests/fenced-frame/resolve-to-config-promise.https.html
@@ -64,16 +64,15 @@ promise_test(async(t) => {
 promise_test(async(t) => {
   const key = token();
 
-  // This should still resolve, but resolve to a URN.
   const urn = await generateURNFromFledge("resources/embeddee.html", [key],
-      [], delayValue("invalid", 0));
-  assert_false(urn instanceof FencedFrameConfig);
+      [], delayValue("non-boolean", 0));
+  assert_true(urn instanceof FencedFrameConfig);
   const fencedframe = attachFencedFrame(urn);
 
   const page1_resp = await nextValueFromServer(key);
   assert_equals(page1_resp, "PASS",
       "The page should have loaded.");
-}, 'resolveToConfig set to a promise that resolves to an invalid value');
+}, 'resolveToConfig set to a promise that resolves to an non-boolean value');
 
 </script>
 </body>
diff --git a/tests/wpt/tests/fetch/fetch-later/quota/same-origin-iframe/multiple-iframes.tentative.https.window.js b/tests/wpt/tests/fetch/fetch-later/quota/same-origin-iframe/multiple-iframes.tentative.https.window.js
index 3f46f84a5fc..c6968903f94 100644
--- a/tests/wpt/tests/fetch/fetch-later/quota/same-origin-iframe/multiple-iframes.tentative.https.window.js
+++ b/tests/wpt/tests/fetch/fetch-later/quota/same-origin-iframe/multiple-iframes.tentative.https.window.js
@@ -31,9 +31,9 @@ promise_test(async _ => {
     referrer: '',
   });
 
-  // Queues a max bytes request in the 2nd same-origin iframe.
-  // TODO(crbug.com/40276121): Confirm whether this should be rejected from
-  // https://github.com/whatwg/fetch/pull/1647/files#r1919611046
+  // Queues a max bytes request to `HTTPS_ORIGIN` in the 2nd same-origin iframe,
+  // which should be rejected because the target URL's origin `HTTPS_ORIGIN`
+  // already has 64kb pending from 1st request.
   await loadFetchLaterIframe(HTTPS_ORIGIN, {
     targetUrl: requestUrl,
     method: 'POST',
@@ -41,18 +41,22 @@ promise_test(async _ => {
     bodySize: getRemainingQuota(QUOTA_PER_ORIGIN, requestUrl, headers),
     // Required, as the size of referrer also take up quota.
     referrer: '',
+    expect: new FetchLaterIframeExpectation(
+        FetchLaterExpectationType.ERROR_DOM, 'QuotaExceededError'),
   });
 
-  // Queues a max bytes request in the root document.
-  // TODO(crbug.com/40276121): Confirm whether this should be rejected from
-  // https://github.com/whatwg/fetch/pull/1647/files#r1919611046
-  fetchLater(requestUrl, {
-    method: 'POST',
-    body: generatePayload(
-        getRemainingQuota(QUOTA_PER_ORIGIN, requestUrl, headers), dataType),
-    // Required, as the size of referrer also take up quota.
-    referrer: ''
-  });
+  // Queues a max bytes request in the root document, which should also be
+  // rejected, because the target URL's origin `HTTPS_ORIGIN` already has 64kb
+  // pending from 1st request.
+  assert_throws_dom(
+      'QuotaExceededError',
+      () => fetchLater(requestUrl, {
+        method: 'POST',
+        body: generatePayload(
+            getRemainingQuota(QUOTA_PER_ORIGIN, requestUrl, headers), dataType),
+        // Required, as the size of referrer also take up quota.
+        referrer: '',
+      }));
 
   // Release quota taken by the pending requests for subsequent tests.
   for (const element of document.querySelectorAll('iframe')) {
diff --git a/tests/wpt/tests/fledge/tentative/auction-config-passed-to-worklets.https.window.js b/tests/wpt/tests/fledge/tentative/auction-config-passed-to-worklets.https.window.js
index dae7d7d806a..dec49b80a96 100644
--- a/tests/wpt/tests/fledge/tentative/auction-config-passed-to-worklets.https.window.js
+++ b/tests/wpt/tests/fledge/tentative/auction-config-passed-to-worklets.https.window.js
@@ -282,3 +282,21 @@ makeTest({
   fieldName: 'auctionSignals',
   fieldValue: 'null',
 });
+
+makeTest({
+  name: 'AuctionConfig.sendCreativeScanningMetadata is explicit undefined',
+  fieldName: 'sendCreativeScanningMetadata',
+  fieldValue: undefined
+});
+
+makeTest({
+  name: 'AuctionConfig.sendCreativeScanningMetadata is true',
+  fieldName: 'sendCreativeScanningMetadata',
+  fieldValue: true
+});
+
+makeTest({
+  name: 'AuctionConfig.sendCreativeScanningMetadata is false',
+  fieldName: 'sendCreativeScanningMetadata',
+  fieldValue: false
+});
diff --git a/tests/wpt/tests/fledge/tentative/resources/fledge_http_server_util.py b/tests/wpt/tests/fledge/tentative/resources/fledge_http_server_util.py
index b7456282d81..179262d3392 100644
--- a/tests/wpt/tests/fledge/tentative/resources/fledge_http_server_util.py
+++ b/tests/wpt/tests/fledge/tentative/resources/fledge_http_server_util.py
@@ -119,7 +119,8 @@ def decode_trusted_scoring_signals_params(request):
             pair[0] == 'adSizes' or
             pair[0] == 'adComponentSizes' or
             pair[0] == 'adBuyer' or
-            pair[0] == 'adComponentBuyer'):
+            pair[0] == 'adComponentBuyer' or
+            pair[0] == 'adBuyerAndSellerReportingIds'):
           continue
       raise ValueError("Unexpected query parameter: " + param)
 
diff --git a/tests/wpt/tests/fledge/tentative/score-ad-browser-signals.https.window.js b/tests/wpt/tests/fledge/tentative/score-ad-browser-signals.https.window.js
index ac9d7e337c2..23fee313af5 100644
--- a/tests/wpt/tests/fledge/tentative/score-ad-browser-signals.https.window.js
+++ b/tests/wpt/tests/fledge/tentative/score-ad-browser-signals.https.window.js
@@ -4,6 +4,7 @@
 // META: script=resources/fledge-util.sub.js
 // META: script=/common/subset-tests.js
 // META: timeout=long
+// META: variant=?1-last
 
 "use strict;"
 
@@ -56,3 +57,79 @@ subsetTest(promise_test, async test => {
       }
     });
 }, 'ScoreAd browserSignals renderSize test.');
+
+
+subsetTest(promise_test, async test => {
+  const uuid = generateUuid(test);
+
+  let decisionLogicURL = createDecisionScriptURL(uuid, {
+    scoreAd: `
+          if (browserSignals.creativeScanningMetadata != 'shady') {
+            throw 'Wrong creativeScanningMetadata';
+          }
+      `
+  });
+
+  await joinGroupAndRunBasicFledgeTestExpectingWinner(test, {
+    uuid: uuid,
+    interestGroupOverrides: {
+      ads: [
+        {renderURL: createRenderURL(uuid), creativeScanningMetadata: 'shady'}
+      ],
+    },
+    auctionConfigOverrides:
+        {decisionLogicURL: decisionLogicURL, sendCreativeScanningMetadata: true}
+  });
+}, 'ScoreAd browserSignals.creativeScanningMetadata test, no adComponents');
+
+subsetTest(promise_test, async test => {
+  const uuid = generateUuid(test);
+
+  let decisionLogicURL = createDecisionScriptURL(uuid, {
+    scoreAd: `
+          if (browserSignals.creativeScanningMetadata != 'shady') {
+            throw 'Wrong creativeScanningMetadata';
+          }
+          let adComponentsCreativeScanningMetadata =
+              browserSignals.adComponentsCreativeScanningMetadata;
+          if (!Array.isArray(adComponentsCreativeScanningMetadata) ||
+              adComponentsCreativeScanningMetadata.length !== 3 ||
+              adComponentsCreativeScanningMetadata[0] !== 'c1' ||
+              adComponentsCreativeScanningMetadata[1] !== null ||
+              adComponentsCreativeScanningMetadata[2] !== 'c4') {
+            throw 'Wrong adComponentsCreativeScanningMetadata';
+          }
+      `
+  });
+  let biddingLogicURL = createBiddingScriptURL({
+    generateBid: `
+          return {
+            bid: 1,
+            render: { url: interestGroup.ads[0].renderURL,
+                      width: '100sw',
+                      height: '50px' },
+            adComponents: [interestGroup.adComponents[0].renderURL,
+                           interestGroup.adComponents[1].renderURL,
+                           interestGroup.adComponents[3].renderURL]
+          };
+        `
+  });
+
+  await joinGroupAndRunBasicFledgeTestExpectingWinner(test, {
+    uuid: uuid,
+    interestGroupOverrides: {
+      biddingLogicURL: biddingLogicURL,
+      ads: [
+        {renderURL: createRenderURL(uuid), creativeScanningMetadata: 'shady'}
+      ],
+      adComponents: [
+        {renderURL: 'https://example.org/a', creativeScanningMetadata: 'c1'},
+        {renderURL: 'https://example.org/b'},
+        {renderURL: 'https://example.org/c', creativeScanningMetadata: 'c3'},
+        {renderURL: 'https://example.org/d', creativeScanningMetadata: 'c4'},
+      ]
+    },
+    auctionConfigOverrides:
+        {decisionLogicURL: decisionLogicURL, sendCreativeScanningMetadata: true}
+  });
+}, 'ScoreAd browserSignals.creativeScanningMetadata test, w/adComponents');
diff --git a/tests/wpt/tests/fledge/tentative/trusted-scoring-signals.https.window.js b/tests/wpt/tests/fledge/tentative/trusted-scoring-signals.https.window.js
index 0c3b4054395..ea820d3acf5 100644
--- a/tests/wpt/tests/fledge/tentative/trusted-scoring-signals.https.window.js
+++ b/tests/wpt/tests/fledge/tentative/trusted-scoring-signals.https.window.js
@@ -809,9 +809,13 @@ subsetTest(promise_test, async test => {
 
   const bidder_origin = OTHER_ORIGIN1;
 
-  await joinCrossOriginInterestGroup(
-      test, uuid, bidder_origin,
-      {ads: [{renderURL: renderURL, creativeScanningMetadata: 'hello'}]});
+  await joinCrossOriginInterestGroup(test, uuid, bidder_origin, {
+    ads: [{
+      renderURL: renderURL,
+      creativeScanningMetadata: 'hello',
+      buyerAndSellerReportingId: 'chair'
+    }]
+  });
 
   const scoreAdBody = `
     ${makeParseHelper(renderURL)}
@@ -819,6 +823,8 @@ subsetTest(promise_test, async test => {
       throw 'Wrong URL';
     if (parsed.get('adCreativeScanningMetadata') !== 'hello')
       throw 'Wrong creative scanning metadata';
+    if (parsed.get('adBuyerAndSellerReportingIds') !== 'chair')
+      throw 'Wrong BSRID';
     if (parsed.get('adSizes') !== ',')
       throw 'Wrong adSizes';
     if (parsed.get('adBuyer') !== '${bidder_origin}')
@@ -852,7 +858,7 @@ subsetTest(promise_test, async test => {
 
   await joinCrossOriginInterestGroup(
       test, uuid, bidder_origin,
-      {ads: [{renderURL: renderURL}]});
+      {ads: [{renderURL: renderURL, buyerAndSellerReportingId: 'sofa'}]});
 
   const scoreAdBody = `
     ${makeParseHelper(renderURL)}
@@ -860,6 +866,8 @@ subsetTest(promise_test, async test => {
       throw 'Wrong URL';
     if (parsed.get('adCreativeScanningMetadata') !== '')
       throw 'Wrong creative scanning metadata';
+    if (parsed.get('adBuyerAndSellerReportingIds') !== 'sofa')
+      throw 'Wrong BSRID';
     if (parsed.get('adSizes') !== ',')
       throw 'Wrong adSizes';
     if (parsed.get('adBuyer') !== '${bidder_origin}')
@@ -899,6 +907,8 @@ subsetTest(promise_test, async test => {
       throw 'Wrong URL';
     if (parsed.has('adCreativeScanningMetadata'))
       throw 'Unexpected creative scanning metadata';
+    if (parsed.has('adBuyerAndSellerReportingIds'))
+      throw 'Unexpected BSRID';
     if (parsed.has('adSizes'))
       throw 'Unexpected adSizes';
     if (parsed.has('adBuyer'))
@@ -958,6 +968,8 @@ subsetTest(promise_test, async test => {
       throw 'Wrong URL';
     if (parsed.get('adCreativeScanningMetadata') !== 'hello')
       throw 'Wrong creative scanning metadata';
+    if (parsed.get('adBuyerAndSellerReportingIds') !== '')
+      throw 'Wrong BSRID';
     if (parsed.get('adSizes') !== '100px,10sh')
       throw 'Wrong adSizes';
     if (parsed.get('adBuyer') !== '${window.location.origin}')
@@ -1035,6 +1047,8 @@ subsetTest(promise_test, async test => {
       throw 'Wrong URL';
     if (parsed.get('adCreativeScanningMetadata') !== 'hello')
       throw 'Wrong creative scanning metadata';
+    if (parsed.get('adBuyerAndSellerReportingIds') !== '')
+      throw 'Wrong BSRID';
     if (parsed.get('adSizes') !== ',')
       throw 'Wrong adSizes';
     if (parsed.get('adBuyer') !== '${window.location.origin}')
diff --git a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.clear.html b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.clear.html
index 9bcac1f3bfc..c91536c8e82 100644
--- a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.clear.html
+++ b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.clear.html
@@ -22,6 +22,9 @@ promise_test(async t => {
   var canvas = document.getElementById('c');
   var ctx = canvas.getContext('2d');
 
+  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
+  ctx.fillRect(0, 0, 100, 50);
+  ctx.globalCompositeOperation = 'clear';
   const canvas2 = document.createElement('canvas');
   canvas2.width = canvas.width;
   canvas2.height = canvas.height;
@@ -30,9 +33,6 @@ promise_test(async t => {
   const blob = await response.blob();
   const bitmap = await createImageBitmap(blob);
   ctx2.drawImage(bitmap, 0, 0);
-  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
-  ctx.fillRect(0, 0, 100, 50);
-  ctx.globalCompositeOperation = 'clear';
   ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 0,0,0,0, 5);
 
diff --git a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.copy.html b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.copy.html
index fad9701dfbf..79095159ba7 100644
--- a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.copy.html
+++ b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.copy.html
@@ -22,6 +22,9 @@ promise_test(async t => {
   var canvas = document.getElementById('c');
   var ctx = canvas.getContext('2d');
 
+  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
+  ctx.fillRect(0, 0, 100, 50);
+  ctx.globalCompositeOperation = 'copy';
   const canvas2 = document.createElement('canvas');
   canvas2.width = canvas.width;
   canvas2.height = canvas.height;
@@ -30,9 +33,6 @@ promise_test(async t => {
   const blob = await response.blob();
   const bitmap = await createImageBitmap(blob);
   ctx2.drawImage(bitmap, 0, 0);
-  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
-  ctx.fillRect(0, 0, 100, 50);
-  ctx.globalCompositeOperation = 'copy';
   ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 255,255,0,191, 5);
 
diff --git a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.destination-atop.html b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.destination-atop.html
index b6f6f745a35..a7069025d04 100644
--- a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.destination-atop.html
+++ b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.destination-atop.html
@@ -22,6 +22,9 @@ promise_test(async t => {
   var canvas = document.getElementById('c');
   var ctx = canvas.getContext('2d');
 
+  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
+  ctx.fillRect(0, 0, 100, 50);
+  ctx.globalCompositeOperation = 'destination-atop';
   const canvas2 = document.createElement('canvas');
   canvas2.width = canvas.width;
   canvas2.height = canvas.height;
@@ -30,9 +33,6 @@ promise_test(async t => {
   const blob = await response.blob();
   const bitmap = await createImageBitmap(blob);
   ctx2.drawImage(bitmap, 0, 0);
-  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
-  ctx.fillRect(0, 0, 100, 50);
-  ctx.globalCompositeOperation = 'destination-atop';
   ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 128,255,128,191, 5);
 
diff --git a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.destination-in.html b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.destination-in.html
index b370cd8e6d8..da549d533e0 100644
--- a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.destination-in.html
+++ b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.destination-in.html
@@ -22,6 +22,9 @@ promise_test(async t => {
   var canvas = document.getElementById('c');
   var ctx = canvas.getContext('2d');
 
+  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
+  ctx.fillRect(0, 0, 100, 50);
+  ctx.globalCompositeOperation = 'destination-in';
   const canvas2 = document.createElement('canvas');
   canvas2.width = canvas.width;
   canvas2.height = canvas.height;
@@ -30,9 +33,6 @@ promise_test(async t => {
   const blob = await response.blob();
   const bitmap = await createImageBitmap(blob);
   ctx2.drawImage(bitmap, 0, 0);
-  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
-  ctx.fillRect(0, 0, 100, 50);
-  ctx.globalCompositeOperation = 'destination-in';
   ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 0,255,255,96, 5);
 
diff --git a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.destination-out.html b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.destination-out.html
index c5c13b49800..1d624983edd 100644
--- a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.destination-out.html
+++ b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.destination-out.html
@@ -22,6 +22,9 @@ promise_test(async t => {
   var canvas = document.getElementById('c');
   var ctx = canvas.getContext('2d');
 
+  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
+  ctx.fillRect(0, 0, 100, 50);
+  ctx.globalCompositeOperation = 'destination-out';
   const canvas2 = document.createElement('canvas');
   canvas2.width = canvas.width;
   canvas2.height = canvas.height;
@@ -30,9 +33,6 @@ promise_test(async t => {
   const blob = await response.blob();
   const bitmap = await createImageBitmap(blob);
   ctx2.drawImage(bitmap, 0, 0);
-  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
-  ctx.fillRect(0, 0, 100, 50);
-  ctx.globalCompositeOperation = 'destination-out';
   ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 0,255,255,32, 5);
 
diff --git a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.destination-over.html b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.destination-over.html
index 186a9676170..400c1163899 100644
--- a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.destination-over.html
+++ b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.destination-over.html
@@ -22,6 +22,9 @@ promise_test(async t => {
   var canvas = document.getElementById('c');
   var ctx = canvas.getContext('2d');
 
+  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
+  ctx.fillRect(0, 0, 100, 50);
+  ctx.globalCompositeOperation = 'destination-over';
   const canvas2 = document.createElement('canvas');
   canvas2.width = canvas.width;
   canvas2.height = canvas.height;
@@ -30,9 +33,6 @@ promise_test(async t => {
   const blob = await response.blob();
   const bitmap = await createImageBitmap(blob);
   ctx2.drawImage(bitmap, 0, 0);
-  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
-  ctx.fillRect(0, 0, 100, 50);
-  ctx.globalCompositeOperation = 'destination-over';
   ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 109,255,146,223, 5);
 
diff --git a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.lighter.html b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.lighter.html
index 622e0d1bdaa..1d243288a2f 100644
--- a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.lighter.html
+++ b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.lighter.html
@@ -22,6 +22,9 @@ promise_test(async t => {
   var canvas = document.getElementById('c');
   var ctx = canvas.getContext('2d');
 
+  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
+  ctx.fillRect(0, 0, 100, 50);
+  ctx.globalCompositeOperation = 'lighter';
   const canvas2 = document.createElement('canvas');
   canvas2.width = canvas.width;
   canvas2.height = canvas.height;
@@ -30,9 +33,6 @@ promise_test(async t => {
   const blob = await response.blob();
   const bitmap = await createImageBitmap(blob);
   ctx2.drawImage(bitmap, 0, 0);
-  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
-  ctx.fillRect(0, 0, 100, 50);
-  ctx.globalCompositeOperation = 'lighter';
   ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 191,255,128,255, 5);
 
diff --git a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.source-atop.html b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.source-atop.html
index fe990661fa5..255665cd621 100644
--- a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.source-atop.html
+++ b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.source-atop.html
@@ -22,6 +22,9 @@ promise_test(async t => {
   var canvas = document.getElementById('c');
   var ctx = canvas.getContext('2d');
 
+  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
+  ctx.fillRect(0, 0, 100, 50);
+  ctx.globalCompositeOperation = 'source-atop';
   const canvas2 = document.createElement('canvas');
   canvas2.width = canvas.width;
   canvas2.height = canvas.height;
@@ -30,9 +33,6 @@ promise_test(async t => {
   const blob = await response.blob();
   const bitmap = await createImageBitmap(blob);
   ctx2.drawImage(bitmap, 0, 0);
-  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
-  ctx.fillRect(0, 0, 100, 50);
-  ctx.globalCompositeOperation = 'source-atop';
   ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 191,255,64,128, 5);
 
diff --git a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.source-in.html b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.source-in.html
index 15679fefa27..6fbb99e7086 100644
--- a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.source-in.html
+++ b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.source-in.html
@@ -22,6 +22,9 @@ promise_test(async t => {
   var canvas = document.getElementById('c');
   var ctx = canvas.getContext('2d');
 
+  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
+  ctx.fillRect(0, 0, 100, 50);
+  ctx.globalCompositeOperation = 'source-in';
   const canvas2 = document.createElement('canvas');
   canvas2.width = canvas.width;
   canvas2.height = canvas.height;
@@ -30,9 +33,6 @@ promise_test(async t => {
   const blob = await response.blob();
   const bitmap = await createImageBitmap(blob);
   ctx2.drawImage(bitmap, 0, 0);
-  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
-  ctx.fillRect(0, 0, 100, 50);
-  ctx.globalCompositeOperation = 'source-in';
   ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 255,255,0,96, 5);
 
diff --git a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.source-out.html b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.source-out.html
index 2728477500e..c15537a86b9 100644
--- a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.source-out.html
+++ b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.source-out.html
@@ -22,6 +22,9 @@ promise_test(async t => {
   var canvas = document.getElementById('c');
   var ctx = canvas.getContext('2d');
 
+  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
+  ctx.fillRect(0, 0, 100, 50);
+  ctx.globalCompositeOperation = 'source-out';
   const canvas2 = document.createElement('canvas');
   canvas2.width = canvas.width;
   canvas2.height = canvas.height;
@@ -30,9 +33,6 @@ promise_test(async t => {
   const blob = await response.blob();
   const bitmap = await createImageBitmap(blob);
   ctx2.drawImage(bitmap, 0, 0);
-  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
-  ctx.fillRect(0, 0, 100, 50);
-  ctx.globalCompositeOperation = 'source-out';
   ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 255,255,0,96, 5);
 
diff --git a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.source-over.html b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.source-over.html
index 3f8bfc3db91..d78fc5bc94a 100644
--- a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.source-over.html
+++ b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.source-over.html
@@ -22,6 +22,9 @@ promise_test(async t => {
   var canvas = document.getElementById('c');
   var ctx = canvas.getContext('2d');
 
+  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
+  ctx.fillRect(0, 0, 100, 50);
+  ctx.globalCompositeOperation = 'source-over';
   const canvas2 = document.createElement('canvas');
   canvas2.width = canvas.width;
   canvas2.height = canvas.height;
@@ -30,9 +33,6 @@ promise_test(async t => {
   const blob = await response.blob();
   const bitmap = await createImageBitmap(blob);
   ctx2.drawImage(bitmap, 0, 0);
-  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
-  ctx.fillRect(0, 0, 100, 50);
-  ctx.globalCompositeOperation = 'source-over';
   ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 219,255,36,223, 5);
 
diff --git a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.xor.html b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.xor.html
index ba0a3575c4f..13308ac570a 100644
--- a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.xor.html
+++ b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.canvas.xor.html
@@ -22,6 +22,9 @@ promise_test(async t => {
   var canvas = document.getElementById('c');
   var ctx = canvas.getContext('2d');
 
+  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
+  ctx.fillRect(0, 0, 100, 50);
+  ctx.globalCompositeOperation = 'xor';
   const canvas2 = document.createElement('canvas');
   canvas2.width = canvas.width;
   canvas2.height = canvas.height;
@@ -30,9 +33,6 @@ promise_test(async t => {
   const blob = await response.blob();
   const bitmap = await createImageBitmap(blob);
   ctx2.drawImage(bitmap, 0, 0);
-  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
-  ctx.fillRect(0, 0, 100, 50);
-  ctx.globalCompositeOperation = 'xor';
   ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 191,255,64,128, 5);
 
diff --git a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.clear.html b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.clear.html
index b990e32b541..ca9f9b6ffd7 100644
--- a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.clear.html
+++ b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.clear.html
@@ -20,12 +20,12 @@
 var t = async_test("fill() does not affect pixels outside the clip region.");
 _addTest(function(canvas, ctx) {
 
-  ctx.fillStyle = '#0f0';
+  ctx.fillStyle = 'rgba(0, 255, 0, 1)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'clear';
   ctx.rect(-20, -20, 10, 10);
   ctx.clip();
-  ctx.fillStyle = '#f00';
+  ctx.fillStyle = 'rgba(255, 0, 0, 1)';
   ctx.fillRect(0, 0, 50, 50);
   _assertPixel(canvas, 50,25, 0,255,0,255);
 
diff --git a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.copy.html b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.copy.html
index 960b59cd79f..441d2bf21c1 100644
--- a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.copy.html
+++ b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.copy.html
@@ -20,12 +20,12 @@
 var t = async_test("fill() does not affect pixels outside the clip region.");
 _addTest(function(canvas, ctx) {
 
-  ctx.fillStyle = '#0f0';
+  ctx.fillStyle = 'rgba(0, 255, 0, 1)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'copy';
   ctx.rect(-20, -20, 10, 10);
   ctx.clip();
-  ctx.fillStyle = '#f00';
+  ctx.fillStyle = 'rgba(255, 0, 0, 1)';
   ctx.fillRect(0, 0, 50, 50);
   _assertPixel(canvas, 50,25, 0,255,0,255);
 
diff --git a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.destination-atop.html b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.destination-atop.html
index 113c9d04de0..845bad73667 100644
--- a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.destination-atop.html
+++ b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.destination-atop.html
@@ -20,12 +20,12 @@
 var t = async_test("fill() does not affect pixels outside the clip region.");
 _addTest(function(canvas, ctx) {
 
-  ctx.fillStyle = '#0f0';
+  ctx.fillStyle = 'rgba(0, 255, 0, 1)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'destination-atop';
   ctx.rect(-20, -20, 10, 10);
   ctx.clip();
-  ctx.fillStyle = '#f00';
+  ctx.fillStyle = 'rgba(255, 0, 0, 1)';
   ctx.fillRect(0, 0, 50, 50);
   _assertPixel(canvas, 50,25, 0,255,0,255);
 
diff --git a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.destination-in.html b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.destination-in.html
index 325fa7198b7..a470f3c14bb 100644
--- a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.destination-in.html
+++ b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.destination-in.html
@@ -20,12 +20,12 @@
 var t = async_test("fill() does not affect pixels outside the clip region.");
 _addTest(function(canvas, ctx) {
 
-  ctx.fillStyle = '#0f0';
+  ctx.fillStyle = 'rgba(0, 255, 0, 1)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'destination-in';
   ctx.rect(-20, -20, 10, 10);
   ctx.clip();
-  ctx.fillStyle = '#f00';
+  ctx.fillStyle = 'rgba(255, 0, 0, 1)';
   ctx.fillRect(0, 0, 50, 50);
   _assertPixel(canvas, 50,25, 0,255,0,255);
 
diff --git a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.destination-out.html b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.destination-out.html
index 4774edf25f4..1171e8624e7 100644
--- a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.destination-out.html
+++ b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.destination-out.html
@@ -20,12 +20,12 @@
 var t = async_test("fill() does not affect pixels outside the clip region.");
 _addTest(function(canvas, ctx) {
 
-  ctx.fillStyle = '#0f0';
+  ctx.fillStyle = 'rgba(0, 255, 0, 1)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'destination-out';
   ctx.rect(-20, -20, 10, 10);
   ctx.clip();
-  ctx.fillStyle = '#f00';
+  ctx.fillStyle = 'rgba(255, 0, 0, 1)';
   ctx.fillRect(0, 0, 50, 50);
   _assertPixel(canvas, 50,25, 0,255,0,255);
 
diff --git a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.destination-over.html b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.destination-over.html
index 24744032337..bad8c6a016f 100644
--- a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.destination-over.html
+++ b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.destination-over.html
@@ -20,12 +20,12 @@
 var t = async_test("fill() does not affect pixels outside the clip region.");
 _addTest(function(canvas, ctx) {
 
-  ctx.fillStyle = '#0f0';
+  ctx.fillStyle = 'rgba(0, 255, 0, 1)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'destination-over';
   ctx.rect(-20, -20, 10, 10);
   ctx.clip();
-  ctx.fillStyle = '#f00';
+  ctx.fillStyle = 'rgba(255, 0, 0, 1)';
   ctx.fillRect(0, 0, 50, 50);
   _assertPixel(canvas, 50,25, 0,255,0,255);
 
diff --git a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.lighter.html b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.lighter.html
index 9cc05d68b0c..42fd22c3cd7 100644
--- a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.lighter.html
+++ b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.lighter.html
@@ -20,12 +20,12 @@
 var t = async_test("fill() does not affect pixels outside the clip region.");
 _addTest(function(canvas, ctx) {
 
-  ctx.fillStyle = '#0f0';
+  ctx.fillStyle = 'rgba(0, 255, 0, 1)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'lighter';
   ctx.rect(-20, -20, 10, 10);
   ctx.clip();
-  ctx.fillStyle = '#f00';
+  ctx.fillStyle = 'rgba(255, 0, 0, 1)';
   ctx.fillRect(0, 0, 50, 50);
   _assertPixel(canvas, 50,25, 0,255,0,255);
 
diff --git a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.source-atop.html b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.source-atop.html
index 3698cf5363e..3f53253f35f 100644
--- a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.source-atop.html
+++ b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.source-atop.html
@@ -20,12 +20,12 @@
 var t = async_test("fill() does not affect pixels outside the clip region.");
 _addTest(function(canvas, ctx) {
 
-  ctx.fillStyle = '#0f0';
+  ctx.fillStyle = 'rgba(0, 255, 0, 1)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'source-atop';
   ctx.rect(-20, -20, 10, 10);
   ctx.clip();
-  ctx.fillStyle = '#f00';
+  ctx.fillStyle = 'rgba(255, 0, 0, 1)';
   ctx.fillRect(0, 0, 50, 50);
   _assertPixel(canvas, 50,25, 0,255,0,255);
 
diff --git a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.source-in.html b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.source-in.html
index b54bd07cb9a..47ffdaf3756 100644
--- a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.source-in.html
+++ b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.source-in.html
@@ -20,12 +20,12 @@
 var t = async_test("fill() does not affect pixels outside the clip region.");
 _addTest(function(canvas, ctx) {
 
-  ctx.fillStyle = '#0f0';
+  ctx.fillStyle = 'rgba(0, 255, 0, 1)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'source-in';
   ctx.rect(-20, -20, 10, 10);
   ctx.clip();
-  ctx.fillStyle = '#f00';
+  ctx.fillStyle = 'rgba(255, 0, 0, 1)';
   ctx.fillRect(0, 0, 50, 50);
   _assertPixel(canvas, 50,25, 0,255,0,255);
 
diff --git a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.source-out.html b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.source-out.html
index 11b66cfab75..ca5e2172aae 100644
--- a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.source-out.html
+++ b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.source-out.html
@@ -20,12 +20,12 @@
 var t = async_test("fill() does not affect pixels outside the clip region.");
 _addTest(function(canvas, ctx) {
 
-  ctx.fillStyle = '#0f0';
+  ctx.fillStyle = 'rgba(0, 255, 0, 1)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'source-out';
   ctx.rect(-20, -20, 10, 10);
   ctx.clip();
-  ctx.fillStyle = '#f00';
+  ctx.fillStyle = 'rgba(255, 0, 0, 1)';
   ctx.fillRect(0, 0, 50, 50);
   _assertPixel(canvas, 50,25, 0,255,0,255);
 
diff --git a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.source-over.html b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.source-over.html
index 55d217c6744..37880fe8efb 100644
--- a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.source-over.html
+++ b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.source-over.html
@@ -20,12 +20,12 @@
 var t = async_test("fill() does not affect pixels outside the clip region.");
 _addTest(function(canvas, ctx) {
 
-  ctx.fillStyle = '#0f0';
+  ctx.fillStyle = 'rgba(0, 255, 0, 1)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'source-over';
   ctx.rect(-20, -20, 10, 10);
   ctx.clip();
-  ctx.fillStyle = '#f00';
+  ctx.fillStyle = 'rgba(255, 0, 0, 1)';
   ctx.fillRect(0, 0, 50, 50);
   _assertPixel(canvas, 50,25, 0,255,0,255);
 
diff --git a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.xor.html b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.xor.html
index fb4e3df65f5..5f1b89caf3c 100644
--- a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.xor.html
+++ b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.clip.xor.html
@@ -20,12 +20,12 @@
 var t = async_test("fill() does not affect pixels outside the clip region.");
 _addTest(function(canvas, ctx) {
 
-  ctx.fillStyle = '#0f0';
+  ctx.fillStyle = 'rgba(0, 255, 0, 1)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'xor';
   ctx.rect(-20, -20, 10, 10);
   ctx.clip();
-  ctx.fillStyle = '#f00';
+  ctx.fillStyle = 'rgba(255, 0, 0, 1)';
   ctx.fillRect(0, 0, 50, 50);
   _assertPixel(canvas, 50,25, 0,255,0,255);
 
diff --git a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.uncovered.nocontext.copy.html b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.uncovered.nocontext.copy.html
index 748ee28b47f..a6d64d68b2d 100644
--- a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.uncovered.nocontext.copy.html
+++ b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.uncovered.nocontext.copy.html
@@ -23,7 +23,9 @@ _addTest(function(canvas, ctx) {
   ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'copy';
-  var canvas2 = document.createElement('canvas');
+  const canvas2 = document.createElement('canvas');
+  canvas2.width = canvas.width;
+  canvas2.height = canvas.height;
   ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 0,0,0,0, 5);
 
diff --git a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.uncovered.nocontext.destination-atop.html b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.uncovered.nocontext.destination-atop.html
index c46ffbf5ee2..818a13626df 100644
--- a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.uncovered.nocontext.destination-atop.html
+++ b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.uncovered.nocontext.destination-atop.html
@@ -23,7 +23,9 @@ _addTest(function(canvas, ctx) {
   ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'destination-atop';
-  var canvas2 = document.createElement('canvas');
+  const canvas2 = document.createElement('canvas');
+  canvas2.width = canvas.width;
+  canvas2.height = canvas.height;
   ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 0,0,0,0, 5);
 
diff --git a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.uncovered.nocontext.destination-in.html b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.uncovered.nocontext.destination-in.html
index 87a99786150..8b66279a745 100644
--- a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.uncovered.nocontext.destination-in.html
+++ b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.uncovered.nocontext.destination-in.html
@@ -23,7 +23,9 @@ _addTest(function(canvas, ctx) {
   ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'destination-in';
-  var canvas2 = document.createElement('canvas');
+  const canvas2 = document.createElement('canvas');
+  canvas2.width = canvas.width;
+  canvas2.height = canvas.height;
   ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 0,0,0,0, 5);
 
diff --git a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.uncovered.nocontext.source-in.html b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.uncovered.nocontext.source-in.html
index 2787477dd05..13b92f5c5bd 100644
--- a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.uncovered.nocontext.source-in.html
+++ b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.uncovered.nocontext.source-in.html
@@ -23,7 +23,9 @@ _addTest(function(canvas, ctx) {
   ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'source-in';
-  var canvas2 = document.createElement('canvas');
+  const canvas2 = document.createElement('canvas');
+  canvas2.width = canvas.width;
+  canvas2.height = canvas.height;
   ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 0,0,0,0, 5);
 
diff --git a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.uncovered.nocontext.source-out.html b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.uncovered.nocontext.source-out.html
index f7047a7733b..8dc445c3e23 100644
--- a/tests/wpt/tests/html/canvas/element/compositing/2d.composite.uncovered.nocontext.source-out.html
+++ b/tests/wpt/tests/html/canvas/element/compositing/2d.composite.uncovered.nocontext.source-out.html
@@ -23,7 +23,9 @@ _addTest(function(canvas, ctx) {
   ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'source-out';
-  var canvas2 = document.createElement('canvas');
+  const canvas2 = document.createElement('canvas');
+  canvas2.width = canvas.width;
+  canvas2.height = canvas.height;
   ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 0,0,0,0, 5);
 
diff --git a/tests/wpt/tests/html/canvas/element/manual/context-attributes/getContextAttributes.html b/tests/wpt/tests/html/canvas/element/manual/context-attributes/getContextAttributes.html
index 9c988638965..6963faa5385 100644
--- a/tests/wpt/tests/html/canvas/element/manual/context-attributes/getContextAttributes.html
+++ b/tests/wpt/tests/html/canvas/element/manual/context-attributes/getContextAttributes.html
@@ -1,3 +1,4 @@
+<!DOCTYPE html>
 <script src="/resources/testharness.js"></script>
 <script src="/resources/testharnessreport.js"></script>
 
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.clear.html b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.clear.html
index b17173a0b89..4e81c6a8264 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.clear.html
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.clear.html
@@ -16,16 +16,16 @@ promise_test(async t => {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  const offscreenCanvas2 = new OffscreenCanvas(canvas.width, canvas.height);
-  const ctx2 = offscreenCanvas2.getContext('2d');
+  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
+  ctx.fillRect(0, 0, 100, 50);
+  ctx.globalCompositeOperation = 'clear';
+  const canvas2 = new OffscreenCanvas(canvas.width, canvas.height);
+  const ctx2 = canvas2.getContext('2d');
   const response = await fetch('/images/yellow75.png')
   const blob = await response.blob();
   const bitmap = await createImageBitmap(blob);
   ctx2.drawImage(bitmap, 0, 0);
-  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
-  ctx.fillRect(0, 0, 100, 50);
-  ctx.globalCompositeOperation = 'clear';
-  ctx.drawImage(offscreenCanvas2, 0, 0);
+  ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 0,0,0,0, 5);
 
 }, "");
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.clear.worker.js b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.clear.worker.js
index d2c449e0961..3f17857e4ce 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.clear.worker.js
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.clear.worker.js
@@ -10,16 +10,16 @@ promise_test(async t => {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  const offscreenCanvas2 = new OffscreenCanvas(canvas.width, canvas.height);
-  const ctx2 = offscreenCanvas2.getContext('2d');
+  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
+  ctx.fillRect(0, 0, 100, 50);
+  ctx.globalCompositeOperation = 'clear';
+  const canvas2 = new OffscreenCanvas(canvas.width, canvas.height);
+  const ctx2 = canvas2.getContext('2d');
   const response = await fetch('/images/yellow75.png')
   const blob = await response.blob();
   const bitmap = await createImageBitmap(blob);
   ctx2.drawImage(bitmap, 0, 0);
-  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
-  ctx.fillRect(0, 0, 100, 50);
-  ctx.globalCompositeOperation = 'clear';
-  ctx.drawImage(offscreenCanvas2, 0, 0);
+  ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 0,0,0,0, 5);
 }, "");
 done();
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.copy.html b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.copy.html
index 88454419958..249db0fe802 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.copy.html
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.copy.html
@@ -16,16 +16,16 @@ promise_test(async t => {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  const offscreenCanvas2 = new OffscreenCanvas(canvas.width, canvas.height);
-  const ctx2 = offscreenCanvas2.getContext('2d');
+  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
+  ctx.fillRect(0, 0, 100, 50);
+  ctx.globalCompositeOperation = 'copy';
+  const canvas2 = new OffscreenCanvas(canvas.width, canvas.height);
+  const ctx2 = canvas2.getContext('2d');
   const response = await fetch('/images/yellow75.png')
   const blob = await response.blob();
   const bitmap = await createImageBitmap(blob);
   ctx2.drawImage(bitmap, 0, 0);
-  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
-  ctx.fillRect(0, 0, 100, 50);
-  ctx.globalCompositeOperation = 'copy';
-  ctx.drawImage(offscreenCanvas2, 0, 0);
+  ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 255,255,0,191, 5);
 
 }, "");
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.copy.worker.js b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.copy.worker.js
index 9362cbb7ddb..75c504990ba 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.copy.worker.js
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.copy.worker.js
@@ -10,16 +10,16 @@ promise_test(async t => {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  const offscreenCanvas2 = new OffscreenCanvas(canvas.width, canvas.height);
-  const ctx2 = offscreenCanvas2.getContext('2d');
+  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
+  ctx.fillRect(0, 0, 100, 50);
+  ctx.globalCompositeOperation = 'copy';
+  const canvas2 = new OffscreenCanvas(canvas.width, canvas.height);
+  const ctx2 = canvas2.getContext('2d');
   const response = await fetch('/images/yellow75.png')
   const blob = await response.blob();
   const bitmap = await createImageBitmap(blob);
   ctx2.drawImage(bitmap, 0, 0);
-  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
-  ctx.fillRect(0, 0, 100, 50);
-  ctx.globalCompositeOperation = 'copy';
-  ctx.drawImage(offscreenCanvas2, 0, 0);
+  ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 255,255,0,191, 5);
 }, "");
 done();
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.destination-atop.html b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.destination-atop.html
index e26a3929008..f10d00c5723 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.destination-atop.html
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.destination-atop.html
@@ -16,16 +16,16 @@ promise_test(async t => {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  const offscreenCanvas2 = new OffscreenCanvas(canvas.width, canvas.height);
-  const ctx2 = offscreenCanvas2.getContext('2d');
+  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
+  ctx.fillRect(0, 0, 100, 50);
+  ctx.globalCompositeOperation = 'destination-atop';
+  const canvas2 = new OffscreenCanvas(canvas.width, canvas.height);
+  const ctx2 = canvas2.getContext('2d');
   const response = await fetch('/images/yellow75.png')
   const blob = await response.blob();
   const bitmap = await createImageBitmap(blob);
   ctx2.drawImage(bitmap, 0, 0);
-  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
-  ctx.fillRect(0, 0, 100, 50);
-  ctx.globalCompositeOperation = 'destination-atop';
-  ctx.drawImage(offscreenCanvas2, 0, 0);
+  ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 128,255,128,191, 5);
 
 }, "");
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.destination-atop.worker.js b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.destination-atop.worker.js
index 76774a4f85d..fcdd5efe7df 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.destination-atop.worker.js
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.destination-atop.worker.js
@@ -10,16 +10,16 @@ promise_test(async t => {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  const offscreenCanvas2 = new OffscreenCanvas(canvas.width, canvas.height);
-  const ctx2 = offscreenCanvas2.getContext('2d');
+  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
+  ctx.fillRect(0, 0, 100, 50);
+  ctx.globalCompositeOperation = 'destination-atop';
+  const canvas2 = new OffscreenCanvas(canvas.width, canvas.height);
+  const ctx2 = canvas2.getContext('2d');
   const response = await fetch('/images/yellow75.png')
   const blob = await response.blob();
   const bitmap = await createImageBitmap(blob);
   ctx2.drawImage(bitmap, 0, 0);
-  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
-  ctx.fillRect(0, 0, 100, 50);
-  ctx.globalCompositeOperation = 'destination-atop';
-  ctx.drawImage(offscreenCanvas2, 0, 0);
+  ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 128,255,128,191, 5);
 }, "");
 done();
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.destination-in.html b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.destination-in.html
index dfb57444b31..f0bcba1fe90 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.destination-in.html
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.destination-in.html
@@ -16,16 +16,16 @@ promise_test(async t => {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  const offscreenCanvas2 = new OffscreenCanvas(canvas.width, canvas.height);
-  const ctx2 = offscreenCanvas2.getContext('2d');
+  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
+  ctx.fillRect(0, 0, 100, 50);
+  ctx.globalCompositeOperation = 'destination-in';
+  const canvas2 = new OffscreenCanvas(canvas.width, canvas.height);
+  const ctx2 = canvas2.getContext('2d');
   const response = await fetch('/images/yellow75.png')
   const blob = await response.blob();
   const bitmap = await createImageBitmap(blob);
   ctx2.drawImage(bitmap, 0, 0);
-  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
-  ctx.fillRect(0, 0, 100, 50);
-  ctx.globalCompositeOperation = 'destination-in';
-  ctx.drawImage(offscreenCanvas2, 0, 0);
+  ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 0,255,255,96, 5);
 
 }, "");
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.destination-in.worker.js b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.destination-in.worker.js
index 597e4f074ae..5d507461ecf 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.destination-in.worker.js
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.destination-in.worker.js
@@ -10,16 +10,16 @@ promise_test(async t => {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  const offscreenCanvas2 = new OffscreenCanvas(canvas.width, canvas.height);
-  const ctx2 = offscreenCanvas2.getContext('2d');
+  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
+  ctx.fillRect(0, 0, 100, 50);
+  ctx.globalCompositeOperation = 'destination-in';
+  const canvas2 = new OffscreenCanvas(canvas.width, canvas.height);
+  const ctx2 = canvas2.getContext('2d');
   const response = await fetch('/images/yellow75.png')
   const blob = await response.blob();
   const bitmap = await createImageBitmap(blob);
   ctx2.drawImage(bitmap, 0, 0);
-  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
-  ctx.fillRect(0, 0, 100, 50);
-  ctx.globalCompositeOperation = 'destination-in';
-  ctx.drawImage(offscreenCanvas2, 0, 0);
+  ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 0,255,255,96, 5);
 }, "");
 done();
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.destination-out.html b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.destination-out.html
index 76b5b08c04c..f4bb383e0fb 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.destination-out.html
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.destination-out.html
@@ -16,16 +16,16 @@ promise_test(async t => {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  const offscreenCanvas2 = new OffscreenCanvas(canvas.width, canvas.height);
-  const ctx2 = offscreenCanvas2.getContext('2d');
+  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
+  ctx.fillRect(0, 0, 100, 50);
+  ctx.globalCompositeOperation = 'destination-out';
+  const canvas2 = new OffscreenCanvas(canvas.width, canvas.height);
+  const ctx2 = canvas2.getContext('2d');
   const response = await fetch('/images/yellow75.png')
   const blob = await response.blob();
   const bitmap = await createImageBitmap(blob);
   ctx2.drawImage(bitmap, 0, 0);
-  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
-  ctx.fillRect(0, 0, 100, 50);
-  ctx.globalCompositeOperation = 'destination-out';
-  ctx.drawImage(offscreenCanvas2, 0, 0);
+  ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 0,255,255,32, 5);
 
 }, "");
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.destination-out.worker.js b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.destination-out.worker.js
index bcb134ed40b..7958eccfac3 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.destination-out.worker.js
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.destination-out.worker.js
@@ -10,16 +10,16 @@ promise_test(async t => {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  const offscreenCanvas2 = new OffscreenCanvas(canvas.width, canvas.height);
-  const ctx2 = offscreenCanvas2.getContext('2d');
+  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
+  ctx.fillRect(0, 0, 100, 50);
+  ctx.globalCompositeOperation = 'destination-out';
+  const canvas2 = new OffscreenCanvas(canvas.width, canvas.height);
+  const ctx2 = canvas2.getContext('2d');
   const response = await fetch('/images/yellow75.png')
   const blob = await response.blob();
   const bitmap = await createImageBitmap(blob);
   ctx2.drawImage(bitmap, 0, 0);
-  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
-  ctx.fillRect(0, 0, 100, 50);
-  ctx.globalCompositeOperation = 'destination-out';
-  ctx.drawImage(offscreenCanvas2, 0, 0);
+  ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 0,255,255,32, 5);
 }, "");
 done();
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.destination-over.html b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.destination-over.html
index 0df9dc542e2..eb5fb1edc6b 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.destination-over.html
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.destination-over.html
@@ -16,16 +16,16 @@ promise_test(async t => {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  const offscreenCanvas2 = new OffscreenCanvas(canvas.width, canvas.height);
-  const ctx2 = offscreenCanvas2.getContext('2d');
+  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
+  ctx.fillRect(0, 0, 100, 50);
+  ctx.globalCompositeOperation = 'destination-over';
+  const canvas2 = new OffscreenCanvas(canvas.width, canvas.height);
+  const ctx2 = canvas2.getContext('2d');
   const response = await fetch('/images/yellow75.png')
   const blob = await response.blob();
   const bitmap = await createImageBitmap(blob);
   ctx2.drawImage(bitmap, 0, 0);
-  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
-  ctx.fillRect(0, 0, 100, 50);
-  ctx.globalCompositeOperation = 'destination-over';
-  ctx.drawImage(offscreenCanvas2, 0, 0);
+  ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 109,255,146,223, 5);
 
 }, "");
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.destination-over.worker.js b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.destination-over.worker.js
index 1bd55fac506..aea0df09c35 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.destination-over.worker.js
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.destination-over.worker.js
@@ -10,16 +10,16 @@ promise_test(async t => {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  const offscreenCanvas2 = new OffscreenCanvas(canvas.width, canvas.height);
-  const ctx2 = offscreenCanvas2.getContext('2d');
+  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
+  ctx.fillRect(0, 0, 100, 50);
+  ctx.globalCompositeOperation = 'destination-over';
+  const canvas2 = new OffscreenCanvas(canvas.width, canvas.height);
+  const ctx2 = canvas2.getContext('2d');
   const response = await fetch('/images/yellow75.png')
   const blob = await response.blob();
   const bitmap = await createImageBitmap(blob);
   ctx2.drawImage(bitmap, 0, 0);
-  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
-  ctx.fillRect(0, 0, 100, 50);
-  ctx.globalCompositeOperation = 'destination-over';
-  ctx.drawImage(offscreenCanvas2, 0, 0);
+  ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 109,255,146,223, 5);
 }, "");
 done();
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.lighter.html b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.lighter.html
index 798221d01a9..131631b42a3 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.lighter.html
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.lighter.html
@@ -16,16 +16,16 @@ promise_test(async t => {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  const offscreenCanvas2 = new OffscreenCanvas(canvas.width, canvas.height);
-  const ctx2 = offscreenCanvas2.getContext('2d');
+  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
+  ctx.fillRect(0, 0, 100, 50);
+  ctx.globalCompositeOperation = 'lighter';
+  const canvas2 = new OffscreenCanvas(canvas.width, canvas.height);
+  const ctx2 = canvas2.getContext('2d');
   const response = await fetch('/images/yellow75.png')
   const blob = await response.blob();
   const bitmap = await createImageBitmap(blob);
   ctx2.drawImage(bitmap, 0, 0);
-  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
-  ctx.fillRect(0, 0, 100, 50);
-  ctx.globalCompositeOperation = 'lighter';
-  ctx.drawImage(offscreenCanvas2, 0, 0);
+  ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 191,255,128,255, 5);
 
 }, "");
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.lighter.worker.js b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.lighter.worker.js
index 6cb3c64820e..0ec46bf886d 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.lighter.worker.js
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.lighter.worker.js
@@ -10,16 +10,16 @@ promise_test(async t => {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  const offscreenCanvas2 = new OffscreenCanvas(canvas.width, canvas.height);
-  const ctx2 = offscreenCanvas2.getContext('2d');
+  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
+  ctx.fillRect(0, 0, 100, 50);
+  ctx.globalCompositeOperation = 'lighter';
+  const canvas2 = new OffscreenCanvas(canvas.width, canvas.height);
+  const ctx2 = canvas2.getContext('2d');
   const response = await fetch('/images/yellow75.png')
   const blob = await response.blob();
   const bitmap = await createImageBitmap(blob);
   ctx2.drawImage(bitmap, 0, 0);
-  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
-  ctx.fillRect(0, 0, 100, 50);
-  ctx.globalCompositeOperation = 'lighter';
-  ctx.drawImage(offscreenCanvas2, 0, 0);
+  ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 191,255,128,255, 5);
 }, "");
 done();
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.source-atop.html b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.source-atop.html
index 72f08fde674..88f80622b4c 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.source-atop.html
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.source-atop.html
@@ -16,16 +16,16 @@ promise_test(async t => {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  const offscreenCanvas2 = new OffscreenCanvas(canvas.width, canvas.height);
-  const ctx2 = offscreenCanvas2.getContext('2d');
+  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
+  ctx.fillRect(0, 0, 100, 50);
+  ctx.globalCompositeOperation = 'source-atop';
+  const canvas2 = new OffscreenCanvas(canvas.width, canvas.height);
+  const ctx2 = canvas2.getContext('2d');
   const response = await fetch('/images/yellow75.png')
   const blob = await response.blob();
   const bitmap = await createImageBitmap(blob);
   ctx2.drawImage(bitmap, 0, 0);
-  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
-  ctx.fillRect(0, 0, 100, 50);
-  ctx.globalCompositeOperation = 'source-atop';
-  ctx.drawImage(offscreenCanvas2, 0, 0);
+  ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 191,255,64,128, 5);
 
 }, "");
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.source-atop.worker.js b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.source-atop.worker.js
index 74a2050ca16..197660894fd 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.source-atop.worker.js
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.source-atop.worker.js
@@ -10,16 +10,16 @@ promise_test(async t => {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  const offscreenCanvas2 = new OffscreenCanvas(canvas.width, canvas.height);
-  const ctx2 = offscreenCanvas2.getContext('2d');
+  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
+  ctx.fillRect(0, 0, 100, 50);
+  ctx.globalCompositeOperation = 'source-atop';
+  const canvas2 = new OffscreenCanvas(canvas.width, canvas.height);
+  const ctx2 = canvas2.getContext('2d');
   const response = await fetch('/images/yellow75.png')
   const blob = await response.blob();
   const bitmap = await createImageBitmap(blob);
   ctx2.drawImage(bitmap, 0, 0);
-  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
-  ctx.fillRect(0, 0, 100, 50);
-  ctx.globalCompositeOperation = 'source-atop';
-  ctx.drawImage(offscreenCanvas2, 0, 0);
+  ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 191,255,64,128, 5);
 }, "");
 done();
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.source-in.html b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.source-in.html
index 2b8fafa7b44..3959fe8d602 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.source-in.html
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.source-in.html
@@ -16,16 +16,16 @@ promise_test(async t => {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  const offscreenCanvas2 = new OffscreenCanvas(canvas.width, canvas.height);
-  const ctx2 = offscreenCanvas2.getContext('2d');
+  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
+  ctx.fillRect(0, 0, 100, 50);
+  ctx.globalCompositeOperation = 'source-in';
+  const canvas2 = new OffscreenCanvas(canvas.width, canvas.height);
+  const ctx2 = canvas2.getContext('2d');
   const response = await fetch('/images/yellow75.png')
   const blob = await response.blob();
   const bitmap = await createImageBitmap(blob);
   ctx2.drawImage(bitmap, 0, 0);
-  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
-  ctx.fillRect(0, 0, 100, 50);
-  ctx.globalCompositeOperation = 'source-in';
-  ctx.drawImage(offscreenCanvas2, 0, 0);
+  ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 255,255,0,96, 5);
 
 }, "");
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.source-in.worker.js b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.source-in.worker.js
index f9e63d57874..293b9c12415 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.source-in.worker.js
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.source-in.worker.js
@@ -10,16 +10,16 @@ promise_test(async t => {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  const offscreenCanvas2 = new OffscreenCanvas(canvas.width, canvas.height);
-  const ctx2 = offscreenCanvas2.getContext('2d');
+  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
+  ctx.fillRect(0, 0, 100, 50);
+  ctx.globalCompositeOperation = 'source-in';
+  const canvas2 = new OffscreenCanvas(canvas.width, canvas.height);
+  const ctx2 = canvas2.getContext('2d');
   const response = await fetch('/images/yellow75.png')
   const blob = await response.blob();
   const bitmap = await createImageBitmap(blob);
   ctx2.drawImage(bitmap, 0, 0);
-  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
-  ctx.fillRect(0, 0, 100, 50);
-  ctx.globalCompositeOperation = 'source-in';
-  ctx.drawImage(offscreenCanvas2, 0, 0);
+  ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 255,255,0,96, 5);
 }, "");
 done();
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.source-out.html b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.source-out.html
index 185ed298d6e..d4b355a9bf9 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.source-out.html
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.source-out.html
@@ -16,16 +16,16 @@ promise_test(async t => {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  const offscreenCanvas2 = new OffscreenCanvas(canvas.width, canvas.height);
-  const ctx2 = offscreenCanvas2.getContext('2d');
+  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
+  ctx.fillRect(0, 0, 100, 50);
+  ctx.globalCompositeOperation = 'source-out';
+  const canvas2 = new OffscreenCanvas(canvas.width, canvas.height);
+  const ctx2 = canvas2.getContext('2d');
   const response = await fetch('/images/yellow75.png')
   const blob = await response.blob();
   const bitmap = await createImageBitmap(blob);
   ctx2.drawImage(bitmap, 0, 0);
-  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
-  ctx.fillRect(0, 0, 100, 50);
-  ctx.globalCompositeOperation = 'source-out';
-  ctx.drawImage(offscreenCanvas2, 0, 0);
+  ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 255,255,0,96, 5);
 
 }, "");
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.source-out.worker.js b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.source-out.worker.js
index 300926c9cd4..49ff15abf88 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.source-out.worker.js
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.source-out.worker.js
@@ -10,16 +10,16 @@ promise_test(async t => {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  const offscreenCanvas2 = new OffscreenCanvas(canvas.width, canvas.height);
-  const ctx2 = offscreenCanvas2.getContext('2d');
+  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
+  ctx.fillRect(0, 0, 100, 50);
+  ctx.globalCompositeOperation = 'source-out';
+  const canvas2 = new OffscreenCanvas(canvas.width, canvas.height);
+  const ctx2 = canvas2.getContext('2d');
   const response = await fetch('/images/yellow75.png')
   const blob = await response.blob();
   const bitmap = await createImageBitmap(blob);
   ctx2.drawImage(bitmap, 0, 0);
-  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
-  ctx.fillRect(0, 0, 100, 50);
-  ctx.globalCompositeOperation = 'source-out';
-  ctx.drawImage(offscreenCanvas2, 0, 0);
+  ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 255,255,0,96, 5);
 }, "");
 done();
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.source-over.html b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.source-over.html
index f37338b6625..b1ba16a4de2 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.source-over.html
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.source-over.html
@@ -16,16 +16,16 @@ promise_test(async t => {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  const offscreenCanvas2 = new OffscreenCanvas(canvas.width, canvas.height);
-  const ctx2 = offscreenCanvas2.getContext('2d');
+  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
+  ctx.fillRect(0, 0, 100, 50);
+  ctx.globalCompositeOperation = 'source-over';
+  const canvas2 = new OffscreenCanvas(canvas.width, canvas.height);
+  const ctx2 = canvas2.getContext('2d');
   const response = await fetch('/images/yellow75.png')
   const blob = await response.blob();
   const bitmap = await createImageBitmap(blob);
   ctx2.drawImage(bitmap, 0, 0);
-  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
-  ctx.fillRect(0, 0, 100, 50);
-  ctx.globalCompositeOperation = 'source-over';
-  ctx.drawImage(offscreenCanvas2, 0, 0);
+  ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 219,255,36,223, 5);
 
 }, "");
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.source-over.worker.js b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.source-over.worker.js
index dbbec70c5f0..9f2d549d8f0 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.source-over.worker.js
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.source-over.worker.js
@@ -10,16 +10,16 @@ promise_test(async t => {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  const offscreenCanvas2 = new OffscreenCanvas(canvas.width, canvas.height);
-  const ctx2 = offscreenCanvas2.getContext('2d');
+  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
+  ctx.fillRect(0, 0, 100, 50);
+  ctx.globalCompositeOperation = 'source-over';
+  const canvas2 = new OffscreenCanvas(canvas.width, canvas.height);
+  const ctx2 = canvas2.getContext('2d');
   const response = await fetch('/images/yellow75.png')
   const blob = await response.blob();
   const bitmap = await createImageBitmap(blob);
   ctx2.drawImage(bitmap, 0, 0);
-  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
-  ctx.fillRect(0, 0, 100, 50);
-  ctx.globalCompositeOperation = 'source-over';
-  ctx.drawImage(offscreenCanvas2, 0, 0);
+  ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 219,255,36,223, 5);
 }, "");
 done();
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.xor.html b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.xor.html
index db1af5399cd..185de6bdeee 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.xor.html
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.xor.html
@@ -16,16 +16,16 @@ promise_test(async t => {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  const offscreenCanvas2 = new OffscreenCanvas(canvas.width, canvas.height);
-  const ctx2 = offscreenCanvas2.getContext('2d');
+  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
+  ctx.fillRect(0, 0, 100, 50);
+  ctx.globalCompositeOperation = 'xor';
+  const canvas2 = new OffscreenCanvas(canvas.width, canvas.height);
+  const ctx2 = canvas2.getContext('2d');
   const response = await fetch('/images/yellow75.png')
   const blob = await response.blob();
   const bitmap = await createImageBitmap(blob);
   ctx2.drawImage(bitmap, 0, 0);
-  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
-  ctx.fillRect(0, 0, 100, 50);
-  ctx.globalCompositeOperation = 'xor';
-  ctx.drawImage(offscreenCanvas2, 0, 0);
+  ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 191,255,64,128, 5);
 
 }, "");
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.xor.worker.js b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.xor.worker.js
index b6e33df894c..4e70cf2b881 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.xor.worker.js
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.canvas.xor.worker.js
@@ -10,16 +10,16 @@ promise_test(async t => {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  const offscreenCanvas2 = new OffscreenCanvas(canvas.width, canvas.height);
-  const ctx2 = offscreenCanvas2.getContext('2d');
+  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
+  ctx.fillRect(0, 0, 100, 50);
+  ctx.globalCompositeOperation = 'xor';
+  const canvas2 = new OffscreenCanvas(canvas.width, canvas.height);
+  const ctx2 = canvas2.getContext('2d');
   const response = await fetch('/images/yellow75.png')
   const blob = await response.blob();
   const bitmap = await createImageBitmap(blob);
   ctx2.drawImage(bitmap, 0, 0);
-  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
-  ctx.fillRect(0, 0, 100, 50);
-  ctx.globalCompositeOperation = 'xor';
-  ctx.drawImage(offscreenCanvas2, 0, 0);
+  ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 191,255,64,128, 5);
 }, "");
 done();
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.clear.html b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.clear.html
index 7bf385e0002..194346825df 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.clear.html
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.clear.html
@@ -21,12 +21,12 @@ t.step(function() {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  ctx.fillStyle = '#0f0';
+  ctx.fillStyle = 'rgba(0, 255, 0, 1)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'clear';
   ctx.rect(-20, -20, 10, 10);
   ctx.clip();
-  ctx.fillStyle = '#f00';
+  ctx.fillStyle = 'rgba(255, 0, 0, 1)';
   ctx.fillRect(0, 0, 50, 50);
   _assertPixel(canvas, 50,25, 0,255,0,255);
   t.done();
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.clear.worker.js b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.clear.worker.js
index ba85656feb1..5c9194a10ee 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.clear.worker.js
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.clear.worker.js
@@ -16,12 +16,12 @@ t.step(function() {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  ctx.fillStyle = '#0f0';
+  ctx.fillStyle = 'rgba(0, 255, 0, 1)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'clear';
   ctx.rect(-20, -20, 10, 10);
   ctx.clip();
-  ctx.fillStyle = '#f00';
+  ctx.fillStyle = 'rgba(255, 0, 0, 1)';
   ctx.fillRect(0, 0, 50, 50);
   _assertPixel(canvas, 50,25, 0,255,0,255);
   t.done();
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.copy.html b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.copy.html
index 053ab46ed77..dcaf8c9f1be 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.copy.html
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.copy.html
@@ -21,12 +21,12 @@ t.step(function() {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  ctx.fillStyle = '#0f0';
+  ctx.fillStyle = 'rgba(0, 255, 0, 1)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'copy';
   ctx.rect(-20, -20, 10, 10);
   ctx.clip();
-  ctx.fillStyle = '#f00';
+  ctx.fillStyle = 'rgba(255, 0, 0, 1)';
   ctx.fillRect(0, 0, 50, 50);
   _assertPixel(canvas, 50,25, 0,255,0,255);
   t.done();
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.copy.worker.js b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.copy.worker.js
index f6ec2a5f0a7..4f237bc1c0d 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.copy.worker.js
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.copy.worker.js
@@ -16,12 +16,12 @@ t.step(function() {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  ctx.fillStyle = '#0f0';
+  ctx.fillStyle = 'rgba(0, 255, 0, 1)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'copy';
   ctx.rect(-20, -20, 10, 10);
   ctx.clip();
-  ctx.fillStyle = '#f00';
+  ctx.fillStyle = 'rgba(255, 0, 0, 1)';
   ctx.fillRect(0, 0, 50, 50);
   _assertPixel(canvas, 50,25, 0,255,0,255);
   t.done();
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.destination-atop.html b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.destination-atop.html
index 54089dc4710..4054b83c7a8 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.destination-atop.html
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.destination-atop.html
@@ -21,12 +21,12 @@ t.step(function() {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  ctx.fillStyle = '#0f0';
+  ctx.fillStyle = 'rgba(0, 255, 0, 1)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'destination-atop';
   ctx.rect(-20, -20, 10, 10);
   ctx.clip();
-  ctx.fillStyle = '#f00';
+  ctx.fillStyle = 'rgba(255, 0, 0, 1)';
   ctx.fillRect(0, 0, 50, 50);
   _assertPixel(canvas, 50,25, 0,255,0,255);
   t.done();
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.destination-atop.worker.js b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.destination-atop.worker.js
index 19459117b51..e7c73bbcc77 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.destination-atop.worker.js
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.destination-atop.worker.js
@@ -16,12 +16,12 @@ t.step(function() {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  ctx.fillStyle = '#0f0';
+  ctx.fillStyle = 'rgba(0, 255, 0, 1)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'destination-atop';
   ctx.rect(-20, -20, 10, 10);
   ctx.clip();
-  ctx.fillStyle = '#f00';
+  ctx.fillStyle = 'rgba(255, 0, 0, 1)';
   ctx.fillRect(0, 0, 50, 50);
   _assertPixel(canvas, 50,25, 0,255,0,255);
   t.done();
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.destination-in.html b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.destination-in.html
index 5aa3ae5eb23..1448f23fcec 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.destination-in.html
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.destination-in.html
@@ -21,12 +21,12 @@ t.step(function() {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  ctx.fillStyle = '#0f0';
+  ctx.fillStyle = 'rgba(0, 255, 0, 1)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'destination-in';
   ctx.rect(-20, -20, 10, 10);
   ctx.clip();
-  ctx.fillStyle = '#f00';
+  ctx.fillStyle = 'rgba(255, 0, 0, 1)';
   ctx.fillRect(0, 0, 50, 50);
   _assertPixel(canvas, 50,25, 0,255,0,255);
   t.done();
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.destination-in.worker.js b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.destination-in.worker.js
index b0b1c71abb3..a340717a5f2 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.destination-in.worker.js
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.destination-in.worker.js
@@ -16,12 +16,12 @@ t.step(function() {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  ctx.fillStyle = '#0f0';
+  ctx.fillStyle = 'rgba(0, 255, 0, 1)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'destination-in';
   ctx.rect(-20, -20, 10, 10);
   ctx.clip();
-  ctx.fillStyle = '#f00';
+  ctx.fillStyle = 'rgba(255, 0, 0, 1)';
   ctx.fillRect(0, 0, 50, 50);
   _assertPixel(canvas, 50,25, 0,255,0,255);
   t.done();
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.destination-out.html b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.destination-out.html
index 8b201109b82..47b7c9c3071 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.destination-out.html
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.destination-out.html
@@ -21,12 +21,12 @@ t.step(function() {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  ctx.fillStyle = '#0f0';
+  ctx.fillStyle = 'rgba(0, 255, 0, 1)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'destination-out';
   ctx.rect(-20, -20, 10, 10);
   ctx.clip();
-  ctx.fillStyle = '#f00';
+  ctx.fillStyle = 'rgba(255, 0, 0, 1)';
   ctx.fillRect(0, 0, 50, 50);
   _assertPixel(canvas, 50,25, 0,255,0,255);
   t.done();
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.destination-out.worker.js b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.destination-out.worker.js
index 3fad74e4739..50667de828a 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.destination-out.worker.js
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.destination-out.worker.js
@@ -16,12 +16,12 @@ t.step(function() {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  ctx.fillStyle = '#0f0';
+  ctx.fillStyle = 'rgba(0, 255, 0, 1)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'destination-out';
   ctx.rect(-20, -20, 10, 10);
   ctx.clip();
-  ctx.fillStyle = '#f00';
+  ctx.fillStyle = 'rgba(255, 0, 0, 1)';
   ctx.fillRect(0, 0, 50, 50);
   _assertPixel(canvas, 50,25, 0,255,0,255);
   t.done();
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.destination-over.html b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.destination-over.html
index 47b99c2e87f..06e07d9921a 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.destination-over.html
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.destination-over.html
@@ -21,12 +21,12 @@ t.step(function() {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  ctx.fillStyle = '#0f0';
+  ctx.fillStyle = 'rgba(0, 255, 0, 1)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'destination-over';
   ctx.rect(-20, -20, 10, 10);
   ctx.clip();
-  ctx.fillStyle = '#f00';
+  ctx.fillStyle = 'rgba(255, 0, 0, 1)';
   ctx.fillRect(0, 0, 50, 50);
   _assertPixel(canvas, 50,25, 0,255,0,255);
   t.done();
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.destination-over.worker.js b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.destination-over.worker.js
index 9e5cb738a47..5c638f99164 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.destination-over.worker.js
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.destination-over.worker.js
@@ -16,12 +16,12 @@ t.step(function() {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  ctx.fillStyle = '#0f0';
+  ctx.fillStyle = 'rgba(0, 255, 0, 1)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'destination-over';
   ctx.rect(-20, -20, 10, 10);
   ctx.clip();
-  ctx.fillStyle = '#f00';
+  ctx.fillStyle = 'rgba(255, 0, 0, 1)';
   ctx.fillRect(0, 0, 50, 50);
   _assertPixel(canvas, 50,25, 0,255,0,255);
   t.done();
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.lighter.html b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.lighter.html
index 2c1d60bbaba..8a3304f8342 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.lighter.html
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.lighter.html
@@ -21,12 +21,12 @@ t.step(function() {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  ctx.fillStyle = '#0f0';
+  ctx.fillStyle = 'rgba(0, 255, 0, 1)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'lighter';
   ctx.rect(-20, -20, 10, 10);
   ctx.clip();
-  ctx.fillStyle = '#f00';
+  ctx.fillStyle = 'rgba(255, 0, 0, 1)';
   ctx.fillRect(0, 0, 50, 50);
   _assertPixel(canvas, 50,25, 0,255,0,255);
   t.done();
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.lighter.worker.js b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.lighter.worker.js
index 5da6bb8602d..0958131684c 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.lighter.worker.js
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.lighter.worker.js
@@ -16,12 +16,12 @@ t.step(function() {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  ctx.fillStyle = '#0f0';
+  ctx.fillStyle = 'rgba(0, 255, 0, 1)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'lighter';
   ctx.rect(-20, -20, 10, 10);
   ctx.clip();
-  ctx.fillStyle = '#f00';
+  ctx.fillStyle = 'rgba(255, 0, 0, 1)';
   ctx.fillRect(0, 0, 50, 50);
   _assertPixel(canvas, 50,25, 0,255,0,255);
   t.done();
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.source-atop.html b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.source-atop.html
index 9fe31e892ec..c844388d940 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.source-atop.html
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.source-atop.html
@@ -21,12 +21,12 @@ t.step(function() {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  ctx.fillStyle = '#0f0';
+  ctx.fillStyle = 'rgba(0, 255, 0, 1)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'source-atop';
   ctx.rect(-20, -20, 10, 10);
   ctx.clip();
-  ctx.fillStyle = '#f00';
+  ctx.fillStyle = 'rgba(255, 0, 0, 1)';
   ctx.fillRect(0, 0, 50, 50);
   _assertPixel(canvas, 50,25, 0,255,0,255);
   t.done();
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.source-atop.worker.js b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.source-atop.worker.js
index 21aa591ca34..a7645265f9b 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.source-atop.worker.js
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.source-atop.worker.js
@@ -16,12 +16,12 @@ t.step(function() {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  ctx.fillStyle = '#0f0';
+  ctx.fillStyle = 'rgba(0, 255, 0, 1)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'source-atop';
   ctx.rect(-20, -20, 10, 10);
   ctx.clip();
-  ctx.fillStyle = '#f00';
+  ctx.fillStyle = 'rgba(255, 0, 0, 1)';
   ctx.fillRect(0, 0, 50, 50);
   _assertPixel(canvas, 50,25, 0,255,0,255);
   t.done();
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.source-in.html b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.source-in.html
index a8ae684294a..7ca1fd5f329 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.source-in.html
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.source-in.html
@@ -21,12 +21,12 @@ t.step(function() {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  ctx.fillStyle = '#0f0';
+  ctx.fillStyle = 'rgba(0, 255, 0, 1)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'source-in';
   ctx.rect(-20, -20, 10, 10);
   ctx.clip();
-  ctx.fillStyle = '#f00';
+  ctx.fillStyle = 'rgba(255, 0, 0, 1)';
   ctx.fillRect(0, 0, 50, 50);
   _assertPixel(canvas, 50,25, 0,255,0,255);
   t.done();
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.source-in.worker.js b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.source-in.worker.js
index ea9d5b64d01..5ba3a3554a6 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.source-in.worker.js
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.source-in.worker.js
@@ -16,12 +16,12 @@ t.step(function() {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  ctx.fillStyle = '#0f0';
+  ctx.fillStyle = 'rgba(0, 255, 0, 1)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'source-in';
   ctx.rect(-20, -20, 10, 10);
   ctx.clip();
-  ctx.fillStyle = '#f00';
+  ctx.fillStyle = 'rgba(255, 0, 0, 1)';
   ctx.fillRect(0, 0, 50, 50);
   _assertPixel(canvas, 50,25, 0,255,0,255);
   t.done();
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.source-out.html b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.source-out.html
index 2284d05b424..186a9daa331 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.source-out.html
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.source-out.html
@@ -21,12 +21,12 @@ t.step(function() {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  ctx.fillStyle = '#0f0';
+  ctx.fillStyle = 'rgba(0, 255, 0, 1)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'source-out';
   ctx.rect(-20, -20, 10, 10);
   ctx.clip();
-  ctx.fillStyle = '#f00';
+  ctx.fillStyle = 'rgba(255, 0, 0, 1)';
   ctx.fillRect(0, 0, 50, 50);
   _assertPixel(canvas, 50,25, 0,255,0,255);
   t.done();
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.source-out.worker.js b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.source-out.worker.js
index 97d85978745..2a575f18929 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.source-out.worker.js
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.source-out.worker.js
@@ -16,12 +16,12 @@ t.step(function() {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  ctx.fillStyle = '#0f0';
+  ctx.fillStyle = 'rgba(0, 255, 0, 1)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'source-out';
   ctx.rect(-20, -20, 10, 10);
   ctx.clip();
-  ctx.fillStyle = '#f00';
+  ctx.fillStyle = 'rgba(255, 0, 0, 1)';
   ctx.fillRect(0, 0, 50, 50);
   _assertPixel(canvas, 50,25, 0,255,0,255);
   t.done();
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.source-over.html b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.source-over.html
index 98ec1da6a40..a0b37f5c07b 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.source-over.html
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.source-over.html
@@ -21,12 +21,12 @@ t.step(function() {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  ctx.fillStyle = '#0f0';
+  ctx.fillStyle = 'rgba(0, 255, 0, 1)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'source-over';
   ctx.rect(-20, -20, 10, 10);
   ctx.clip();
-  ctx.fillStyle = '#f00';
+  ctx.fillStyle = 'rgba(255, 0, 0, 1)';
   ctx.fillRect(0, 0, 50, 50);
   _assertPixel(canvas, 50,25, 0,255,0,255);
   t.done();
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.source-over.worker.js b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.source-over.worker.js
index e4ff4a3dd83..37cd50f0b20 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.source-over.worker.js
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.source-over.worker.js
@@ -16,12 +16,12 @@ t.step(function() {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  ctx.fillStyle = '#0f0';
+  ctx.fillStyle = 'rgba(0, 255, 0, 1)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'source-over';
   ctx.rect(-20, -20, 10, 10);
   ctx.clip();
-  ctx.fillStyle = '#f00';
+  ctx.fillStyle = 'rgba(255, 0, 0, 1)';
   ctx.fillRect(0, 0, 50, 50);
   _assertPixel(canvas, 50,25, 0,255,0,255);
   t.done();
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.xor.html b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.xor.html
index 102b3857fc2..f104efb6bbf 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.xor.html
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.xor.html
@@ -21,12 +21,12 @@ t.step(function() {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  ctx.fillStyle = '#0f0';
+  ctx.fillStyle = 'rgba(0, 255, 0, 1)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'xor';
   ctx.rect(-20, -20, 10, 10);
   ctx.clip();
-  ctx.fillStyle = '#f00';
+  ctx.fillStyle = 'rgba(255, 0, 0, 1)';
   ctx.fillRect(0, 0, 50, 50);
   _assertPixel(canvas, 50,25, 0,255,0,255);
   t.done();
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.xor.worker.js b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.xor.worker.js
index d3b39219810..358434b34e4 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.xor.worker.js
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.clip.xor.worker.js
@@ -16,12 +16,12 @@ t.step(function() {
   var canvas = new OffscreenCanvas(100, 50);
   var ctx = canvas.getContext('2d');
 
-  ctx.fillStyle = '#0f0';
+  ctx.fillStyle = 'rgba(0, 255, 0, 1)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'xor';
   ctx.rect(-20, -20, 10, 10);
   ctx.clip();
-  ctx.fillStyle = '#f00';
+  ctx.fillStyle = 'rgba(255, 0, 0, 1)';
   ctx.fillRect(0, 0, 50, 50);
   _assertPixel(canvas, 50,25, 0,255,0,255);
   t.done();
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.uncovered.nocontext.copy.html b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.uncovered.nocontext.copy.html
index 50243ce401d..ee7742a8170 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.uncovered.nocontext.copy.html
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.uncovered.nocontext.copy.html
@@ -24,8 +24,8 @@ t.step(function() {
   ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'copy';
-  var offscreenCanvas2 = new OffscreenCanvas(100, 50);
-  ctx.drawImage(offscreenCanvas2, 0, 0);
+  const canvas2 = new OffscreenCanvas(canvas.width, canvas.height);
+  ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 0,0,0,0, 5);
   t.done();
 
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.uncovered.nocontext.copy.worker.js b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.uncovered.nocontext.copy.worker.js
index 1f285eae4c0..251f8ac5fa4 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.uncovered.nocontext.copy.worker.js
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.uncovered.nocontext.copy.worker.js
@@ -19,8 +19,8 @@ t.step(function() {
   ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'copy';
-  var offscreenCanvas2 = new OffscreenCanvas(100, 50);
-  ctx.drawImage(offscreenCanvas2, 0, 0);
+  const canvas2 = new OffscreenCanvas(canvas.width, canvas.height);
+  ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 0,0,0,0, 5);
   t.done();
 });
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.uncovered.nocontext.destination-atop.html b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.uncovered.nocontext.destination-atop.html
index 0c4e8cbf3e2..bb0368d439d 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.uncovered.nocontext.destination-atop.html
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.uncovered.nocontext.destination-atop.html
@@ -24,8 +24,8 @@ t.step(function() {
   ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'destination-atop';
-  var offscreenCanvas2 = new OffscreenCanvas(100, 50);
-  ctx.drawImage(offscreenCanvas2, 0, 0);
+  const canvas2 = new OffscreenCanvas(canvas.width, canvas.height);
+  ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 0,0,0,0, 5);
   t.done();
 
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.uncovered.nocontext.destination-atop.worker.js b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.uncovered.nocontext.destination-atop.worker.js
index a9beb0f27ed..4ed132e87ed 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.uncovered.nocontext.destination-atop.worker.js
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.uncovered.nocontext.destination-atop.worker.js
@@ -19,8 +19,8 @@ t.step(function() {
   ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'destination-atop';
-  var offscreenCanvas2 = new OffscreenCanvas(100, 50);
-  ctx.drawImage(offscreenCanvas2, 0, 0);
+  const canvas2 = new OffscreenCanvas(canvas.width, canvas.height);
+  ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 0,0,0,0, 5);
   t.done();
 });
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.uncovered.nocontext.destination-in.html b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.uncovered.nocontext.destination-in.html
index 0258ed830ba..6e49330e633 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.uncovered.nocontext.destination-in.html
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.uncovered.nocontext.destination-in.html
@@ -24,8 +24,8 @@ t.step(function() {
   ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'destination-in';
-  var offscreenCanvas2 = new OffscreenCanvas(100, 50);
-  ctx.drawImage(offscreenCanvas2, 0, 0);
+  const canvas2 = new OffscreenCanvas(canvas.width, canvas.height);
+  ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 0,0,0,0, 5);
   t.done();
 
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.uncovered.nocontext.destination-in.worker.js b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.uncovered.nocontext.destination-in.worker.js
index e146e2e91ad..d33eb3544cd 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.uncovered.nocontext.destination-in.worker.js
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.uncovered.nocontext.destination-in.worker.js
@@ -19,8 +19,8 @@ t.step(function() {
   ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'destination-in';
-  var offscreenCanvas2 = new OffscreenCanvas(100, 50);
-  ctx.drawImage(offscreenCanvas2, 0, 0);
+  const canvas2 = new OffscreenCanvas(canvas.width, canvas.height);
+  ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 0,0,0,0, 5);
   t.done();
 });
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.uncovered.nocontext.source-in.html b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.uncovered.nocontext.source-in.html
index 1f081e433a2..4e98879c1dc 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.uncovered.nocontext.source-in.html
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.uncovered.nocontext.source-in.html
@@ -24,8 +24,8 @@ t.step(function() {
   ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'source-in';
-  var offscreenCanvas2 = new OffscreenCanvas(100, 50);
-  ctx.drawImage(offscreenCanvas2, 0, 0);
+  const canvas2 = new OffscreenCanvas(canvas.width, canvas.height);
+  ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 0,0,0,0, 5);
   t.done();
 
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.uncovered.nocontext.source-in.worker.js b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.uncovered.nocontext.source-in.worker.js
index cce4b54bd5f..eb90a7e3b8b 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.uncovered.nocontext.source-in.worker.js
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.uncovered.nocontext.source-in.worker.js
@@ -19,8 +19,8 @@ t.step(function() {
   ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'source-in';
-  var offscreenCanvas2 = new OffscreenCanvas(100, 50);
-  ctx.drawImage(offscreenCanvas2, 0, 0);
+  const canvas2 = new OffscreenCanvas(canvas.width, canvas.height);
+  ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 0,0,0,0, 5);
   t.done();
 });
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.uncovered.nocontext.source-out.html b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.uncovered.nocontext.source-out.html
index 93fdb52bded..929dc632572 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.uncovered.nocontext.source-out.html
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.uncovered.nocontext.source-out.html
@@ -24,8 +24,8 @@ t.step(function() {
   ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'source-out';
-  var offscreenCanvas2 = new OffscreenCanvas(100, 50);
-  ctx.drawImage(offscreenCanvas2, 0, 0);
+  const canvas2 = new OffscreenCanvas(canvas.width, canvas.height);
+  ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 0,0,0,0, 5);
   t.done();
 
diff --git a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.uncovered.nocontext.source-out.worker.js b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.uncovered.nocontext.source-out.worker.js
index 501a84f7e7b..269adf9dcbb 100644
--- a/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.uncovered.nocontext.source-out.worker.js
+++ b/tests/wpt/tests/html/canvas/offscreen/compositing/2d.composite.uncovered.nocontext.source-out.worker.js
@@ -19,8 +19,8 @@ t.step(function() {
   ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
   ctx.fillRect(0, 0, 100, 50);
   ctx.globalCompositeOperation = 'source-out';
-  var offscreenCanvas2 = new OffscreenCanvas(100, 50);
-  ctx.drawImage(offscreenCanvas2, 0, 0);
+  const canvas2 = new OffscreenCanvas(canvas.width, canvas.height);
+  ctx.drawImage(canvas2, 0, 0);
   _assertPixelApprox(canvas, 50,25, 0,0,0,0, 5);
   t.done();
 });
diff --git a/tests/wpt/tests/html/canvas/offscreen/manual/context-attributes/getContextAttributes.html b/tests/wpt/tests/html/canvas/offscreen/manual/context-attributes/getContextAttributes.html
new file mode 100644
index 00000000000..82edf974e0d
--- /dev/null
+++ b/tests/wpt/tests/html/canvas/offscreen/manual/context-attributes/getContextAttributes.html
@@ -0,0 +1,74 @@
+<!DOCTYPE html>
+<!-- This test should be kept in sync with the element version of this test (so long as the element
+offscreen context attribute APIs remain identical). -->
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+
+<script>
+
+var testScenarios = [
+    // defaults
+    {testDescription: "Test default offscreen context creation attributes",
+        canvasContextAttributes: {},
+        expectedContextAttributes: {alpha: true, desynchronized: false, willReadFrequently: false, colorSpace: "srgb"}},
+    // alpha
+    {testDescription: "Test offscreen context creation attributes alpha: true",
+        canvasContextAttributes: {alpha: true},
+        expectedContextAttributes: {alpha: true}},
+    {testDescription: "Test offscreen context creation attributes alpha: false",
+        canvasContextAttributes: {alpha: false},
+        expectedContextAttributes: {alpha: false}},
+    // colorSpace
+    {testDescription: "Test offscreen context creation attributes colorSpace: 'srgb'",
+        canvasContextAttributes: {colorSpace: "srgb"},
+        expectedContextAttributes: {colorSpace: "srgb"}},
+    {testDescription: "Test offscreen context creation attributes colorSpace: 'display-p3'",
+        canvasContextAttributes: {colorSpace: "display-p3"},
+        expectedContextAttributes: {colorSpace: "display-p3"}},
+    // desynchronized
+    {testDescription: "Test offscreen context creation attributes desynchronized: true",
+        canvasContextAttributes: {desynchronized: true},
+        expectedContextAttributes: {desynchronized: true}},
+    {testDescription: "Test offscreen context creation attributes desynchronized: false",
+        canvasContextAttributes: {desynchronized: false},
+        expectedContextAttributes: {desynchronized: false}},
+    // willReadFrequently
+    {testDescription: "Test offscreen context creation attributes willReadFrequently: true",
+        canvasContextAttributes: {willReadFrequently: true},
+        expectedContextAttributes: {willReadFrequently: true}},
+    {testDescription: "Test offscreen context creation attributes willReadFrequently: false",
+        canvasContextAttributes: {willReadFrequently: false},
+        expectedContextAttributes: {willReadFrequently: false}},
+];
+
+function runTestScenario(canvas, testScenario) {
+    var t = test(function() {
+        var ctx = canvas.getContext('2d', testScenario.canvasContextAttributes);
+        var contextAttributes = ctx.getContextAttributes();
+        if (testScenario.expectedContextAttributes.alpha !== undefined) {
+            assert_equals(contextAttributes.alpha,
+                testScenario.expectedContextAttributes.alpha);
+        }
+        if (testScenario.expectedContextAttributes.colorSpace !== undefined) {
+            assert_equals(contextAttributes.colorSpace,
+                testScenario.expectedContextAttributes.colorSpace);
+        }
+        if (testScenario.expectedContextAttributes.desynchronized !== undefined) {
+            assert_equals(contextAttributes.desynchronized,
+                testScenario.expectedContextAttributes.desynchronized);
+        }
+        if (testScenario.expectedContextAttributes.willReadFrequently !== undefined) {
+            assert_equals(contextAttributes.willReadFrequently,
+                testScenario.expectedContextAttributes.willReadFrequently);
+        }
+    }, testScenario.testDescription);
+}
+
+function runAllTests() {
+    for (var i = 0; i < testScenarios.length; i++) {
+        runTestScenario(new OffscreenCanvas(100, 100), testScenarios[i]);
+    }
+}
+
+runAllTests();
+</script>
diff --git a/tests/wpt/tests/html/canvas/tools/gentestutilsunion.py b/tests/wpt/tests/html/canvas/tools/gentestutilsunion.py
index c9d4963d9e1..85c42c13a48 100644
--- a/tests/wpt/tests/html/canvas/tools/gentestutilsunion.py
+++ b/tests/wpt/tests/html/canvas/tools/gentestutilsunion.py
@@ -264,7 +264,7 @@ def _render_template(jinja_env: jinja2.Environment, template: jinja2.Template,
     """
     rendered = template.render(params)
     previous = ''
-    while rendered != previous:
+    while rendered != previous and ('{{' in rendered or '{%' in rendered):
         previous = rendered
         template = jinja_env.from_string(rendered)
         rendered = template.render(params)
@@ -285,7 +285,8 @@ def _preprocess_code(jinja_env: jinja2.Environment, code: str,
     # Render the code on its own, as it could contain templates expanding
     # to multiple lines. This is needed to get proper indentation of the
     # code in the main template.
-    code = _render_template(jinja_env, jinja_env.from_string(code), params)
+    if '{{' in code or '{%' in code:
+        code = _render_template(jinja_env, jinja_env.from_string(code), params)
 
     # Expand "@..." macros.
     code = _expand_test_code(code)
@@ -392,7 +393,8 @@ class _Variant():
                       param_name: str) -> None:
         """Render the specified parameter in-place in the `params` dict."""
         value = self.params.get(param_name)
-        if value and isinstance(value, str):
+        if value and isinstance(value, str) and ('{{' in value or
+                                                 '{%' in value):
             self._params[param_name] = (
                 jinja_env.from_string(value).render(self.params))
 
diff --git a/tests/wpt/tests/html/canvas/tools/templates/testharness_element_grid.html b/tests/wpt/tests/html/canvas/tools/templates/testharness_element_grid.html
index c5bcc7df908..4ad42a88803 100644
--- a/tests/wpt/tests/html/canvas/tools/templates/testharness_element_grid.html
+++ b/tests/wpt/tests/html/canvas/tools/templates/testharness_element_grid.html
@@ -2,7 +2,8 @@
 <!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
 <meta charset="UTF-8">
 <title>Canvas test: {{ name }}</title>
-{% if timeout %}<meta name="timeout" content="{{ timeout }}">{% endif %}
+{% if timeout %}<meta name="timeout" content="{{ timeout }}">
+{% endif %}
 <script src="/resources/testharness.js"></script>
 <script src="/resources/testharnessreport.js"></script>
 <script src="/html/canvas/resources/canvas-tests.js"></script>
diff --git a/tests/wpt/tests/html/canvas/tools/templates/testharness_offscreen.html b/tests/wpt/tests/html/canvas/tools/templates/testharness_offscreen.html
index c13cf834483..62226a30d7b 100644
--- a/tests/wpt/tests/html/canvas/tools/templates/testharness_offscreen.html
+++ b/tests/wpt/tests/html/canvas/tools/templates/testharness_offscreen.html
@@ -2,7 +2,8 @@
 <!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
 <meta charset="UTF-8">
 <title>OffscreenCanvas test: {{ name }}</title>
-{% if timeout %}<meta name="timeout" content="{{ timeout }}">{% endif %}
+{% if timeout %}<meta name="timeout" content="{{ timeout }}">
+{% endif %}
 <script src="/resources/testharness.js"></script>
 <script src="/resources/testharnessreport.js"></script>
 <script src="/html/canvas/resources/canvas-tests.js"></script>
diff --git a/tests/wpt/tests/html/canvas/tools/templates/testharness_offscreen_grid.html b/tests/wpt/tests/html/canvas/tools/templates/testharness_offscreen_grid.html
index c63bd732bfd..bf6e39431e9 100644
--- a/tests/wpt/tests/html/canvas/tools/templates/testharness_offscreen_grid.html
+++ b/tests/wpt/tests/html/canvas/tools/templates/testharness_offscreen_grid.html
@@ -2,7 +2,8 @@
 <!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
 <meta charset="UTF-8">
 <title>OffscreenCanvas test: {{ name }}</title>
-{% if timeout %}<meta name="timeout" content="{{ timeout }}">{% endif %}
+{% if timeout %}<meta name="timeout" content="{{ timeout }}">
+{% endif %}
 <script src="/resources/testharness.js"></script>
 <script src="/resources/testharnessreport.js"></script>
 <script src="/html/canvas/resources/canvas-tests.js"></script>
diff --git a/tests/wpt/tests/html/canvas/tools/templates/testharness_worker.js b/tests/wpt/tests/html/canvas/tools/templates/testharness_worker.js
index 570d479a0a6..96d23617e15 100644
--- a/tests/wpt/tests/html/canvas/tools/templates/testharness_worker.js
+++ b/tests/wpt/tests/html/canvas/tools/templates/testharness_worker.js
@@ -1,4 +1,5 @@
-{% if timeout %}// META: timeout={{ timeout }}{% endif %}
+{% if timeout %}// META: timeout={{ timeout }}
+{% endif %}
 // DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
 // OffscreenCanvas test in a worker:{{ name }}
 // Description:{{ desc }}
diff --git a/tests/wpt/tests/html/canvas/tools/templates/testharness_worker_grid.js b/tests/wpt/tests/html/canvas/tools/templates/testharness_worker_grid.js
index 53c3b69cb66..385a89d3af9 100644
--- a/tests/wpt/tests/html/canvas/tools/templates/testharness_worker_grid.js
+++ b/tests/wpt/tests/html/canvas/tools/templates/testharness_worker_grid.js
@@ -1,4 +1,5 @@
-{% if timeout %}// META: timeout={{ timeout }}{% endif %}
+{% if timeout %}// META: timeout={{ timeout }}
+{% endif %}
 // DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
 // OffscreenCanvas test in a worker:{{ name }}
 // Description:{{ desc }}
diff --git a/tests/wpt/tests/html/canvas/tools/yaml/element/meta.yaml b/tests/wpt/tests/html/canvas/tools/yaml/element/meta.yaml
index 091f61147df..9ebe42e6081 100644
--- a/tests/wpt/tests/html/canvas/tools/yaml/element/meta.yaml
+++ b/tests/wpt/tests/html/canvas/tools/yaml/element/meta.yaml
@@ -108,6 +108,9 @@
                 'name': '2d.composite.%s.%s' % (name, op),
                 'test_type': 'promise',
                 'code': """
+    ctx.fillStyle = 'rgba%s';
+    ctx.fillRect(0, 0, 100, 50);
+    ctx.globalCompositeOperation = '%s';
     const canvas2 = document.createElement('canvas');
     canvas2.width = canvas.width;
     canvas2.height = canvas.height;
@@ -116,9 +119,6 @@
     const blob = await response.blob();
     const bitmap = await createImageBitmap(blob);
     ctx2.drawImage(bitmap, 0, 0);
-    ctx.fillStyle = 'rgba%s';
-    ctx.fillRect(0, 0, 100, 50);
-    ctx.globalCompositeOperation = '%s';
     ctx.drawImage(canvas2, 0, 0);
     @assert pixel 50,25 ==~ %s +/- 5;
     """ % (dest, op, to_test(expected)),
@@ -189,7 +189,9 @@
     ctx.fillStyle = 'rgba%s';
     ctx.fillRect(0, 0, 100, 50);
     ctx.globalCompositeOperation = '%s';
-    var canvas2 = document.createElement('canvas');
+    const canvas2 = document.createElement('canvas');
+    canvas2.width = canvas.width;
+    canvas2.height = canvas.height;
     ctx.drawImage(canvas2, 0, 0);
     @assert pixel 50,25 ==~ %s +/- 5;
     """ % (dest, op, to_test(expected0)),
@@ -226,22 +228,24 @@
     """ % (to_cairo(expected0)),
             } )
 
-    for op, FA_code, FB_code in ops:
-        tests.append( {
-            'name': '2d.composite.clip.%s' % (op),
-            'desc': 'fill() does not affect pixels outside the clip region.',
-            'code': """
-    ctx.fillStyle = '#0f0';
+    for (name, src, dest) in [ ('clip', (255, 0, 0, 1), (0, 255, 0, 1)) ]:
+        for op, FA_code, FB_code in ops:
+            expected = (0, 255, 0, 1.0)
+            tests.append( {
+                'name': '2d.composite.clip.%s' % (op),
+                'desc': 'fill() does not affect pixels outside the clip region.',
+                'code': """
+    ctx.fillStyle = 'rgba%s';
     ctx.fillRect(0, 0, 100, 50);
     ctx.globalCompositeOperation = '%s';
     ctx.rect(-20, -20, 10, 10);
     ctx.clip();
-    ctx.fillStyle = '#f00';
+    ctx.fillStyle = 'rgba%s';
     ctx.fillRect(0, 0, 50, 50);
-    @assert pixel 50,25 == 0,255,0,255;
-    """ % (op),
+    @assert pixel 50,25 == %s;
+    """ % (dest, op, src, to_test(expected)),
                 'expected': 'green'
-        } )
+            } )
 
 - meta: |
     # Color parsing tests
diff --git a/tests/wpt/tests/html/canvas/tools/yaml/offscreen/meta.yaml b/tests/wpt/tests/html/canvas/tools/yaml/offscreen/meta.yaml
index f6cfa90955c..e9f42392fa8 100644
--- a/tests/wpt/tests/html/canvas/tools/yaml/offscreen/meta.yaml
+++ b/tests/wpt/tests/html/canvas/tools/yaml/offscreen/meta.yaml
@@ -99,16 +99,16 @@
                 'name': '2d.composite.%s.%s' % (name, op),
                 'test_type': 'promise',
                 'code': """
-    const offscreenCanvas2 = new OffscreenCanvas(canvas.width, canvas.height);
-    const ctx2 = offscreenCanvas2.getContext('2d');
+    ctx.fillStyle = 'rgba%s';
+    ctx.fillRect(0, 0, 100, 50);
+    ctx.globalCompositeOperation = '%s';
+    const canvas2 = new OffscreenCanvas(canvas.width, canvas.height);
+    const ctx2 = canvas2.getContext('2d');
     const response = await fetch('/images/yellow75.png')
     const blob = await response.blob();
     const bitmap = await createImageBitmap(blob);
     ctx2.drawImage(bitmap, 0, 0);
-    ctx.fillStyle = 'rgba%s';
-    ctx.fillRect(0, 0, 100, 50);
-    ctx.globalCompositeOperation = '%s';
-    ctx.drawImage(offscreenCanvas2, 0, 0);
+    ctx.drawImage(canvas2, 0, 0);
     @assert pixel 50,25 ==~ %s +/- 5;
     """ % (dest, op, to_test(expected)),
             } )
@@ -166,8 +166,8 @@
     ctx.fillStyle = 'rgba%s';
     ctx.fillRect(0, 0, 100, 50);
     ctx.globalCompositeOperation = '%s';
-    var offscreenCanvas2 = new OffscreenCanvas(100, 50);
-    ctx.drawImage(offscreenCanvas2, 0, 0);
+    const canvas2 = new OffscreenCanvas(canvas.width, canvas.height);
+    ctx.drawImage(canvas2, 0, 0);
     @assert pixel 50,25 ==~ %s +/- 5;
     t.done();
     """ % (dest, op, to_test(expected0)),
@@ -194,22 +194,24 @@
     """ % (dest, op, to_test(expected0)),
             } )
 
-    for op, FA_code, FB_code in ops:
-        tests.append( {
-            'name': '2d.composite.clip.%s' % (op),
-            'desc': 'fill() does not affect pixels outside the clip region.',
-            'code': """
-    ctx.fillStyle = '#0f0';
+    for (name, src, dest) in [ ('clip', (255, 0, 0, 1), (0, 255, 0, 1)) ]:
+        for op, FA_code, FB_code in ops:
+            expected = (0, 255, 0, 1.0)
+            tests.append( {
+                'name': '2d.composite.clip.%s' % (op),
+                'desc': 'fill() does not affect pixels outside the clip region.',
+                'code': """
+    ctx.fillStyle = 'rgba%s';
     ctx.fillRect(0, 0, 100, 50);
     ctx.globalCompositeOperation = '%s';
     ctx.rect(-20, -20, 10, 10);
     ctx.clip();
-    ctx.fillStyle = '#f00';
+    ctx.fillStyle = 'rgba%s';
     ctx.fillRect(0, 0, 50, 50);
-    @assert pixel 50,25 == 0,255,0,255;
+    @assert pixel 50,25 == %s;
     t.done();
-    """ % (op),
-        } )
+    """ % (dest, op, src, to_test(expected)),
+            } )
 
 - meta: |
     # Color parsing tests
diff --git a/tests/wpt/tests/html/document-isolation-policy/reporting-cache-storage-corp.tentative.https.html b/tests/wpt/tests/html/document-isolation-policy/reporting-cache-storage-corp.tentative.https.html
new file mode 100644
index 00000000000..934c87b2abc
--- /dev/null
+++ b/tests/wpt/tests/html/document-isolation-policy/reporting-cache-storage-corp.tentative.https.html
@@ -0,0 +1,208 @@
+<!doctype html>
+<html>
+<meta name="timeout" content="long">
+<body>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/common/dispatcher/dispatcher.js"></script>
+<script src="/common/utils.js"></script>
+<script src="/common/get-host-info.sub.js"></script>
+<script src="/service-workers/service-worker/resources/test-helpers.sub.js"></script>
+<script>
+const {ORIGIN, REMOTE_ORIGIN} = get_host_info();
+
+const REMOTE_EXECUTOR =
+  `${ORIGIN}/common/dispatcher/remote-executor.html?pipe=`;
+const REMOTE_EXECUTOR_WORKER =
+  `${ORIGIN}/common/dispatcher/remote-executor-worker.js?pipe=`;
+
+const header = (name, value) => `|header(${name},${value})`;
+
+const FRAME_URL = REMOTE_EXECUTOR +
+  header("document-isolation-policy", "isolate-and-require-corp") +
+  header("document-isolation-policy-report-only", "isolate-and-require-corp");
+
+const WORKER_URL = REMOTE_EXECUTOR_WORKER +
+  header("document-isolation-policy", "isolate-and-require-corp") +
+  header("document-isolation-policy-report-only", "isolate-and-require-corp");
+
+async function putInCache(resourceUrl) {
+  const cache = await caches.open('v1');
+  const request = new Request(resourceUrl, { mode: 'no-cors' });
+  const response = await fetch(request);
+  await cache.put(request, response);
+}
+
+function checkReport(report, contextUrl, blockedUrl, disposition, destination) {
+  assert_equals(report.type, 'dip');
+  assert_equals(report.url, contextUrl);
+  assert_equals(report.body.type, 'corp');
+  assert_equals(report.body.blockedURL, blockedUrl);
+  assert_equals(report.body.disposition, disposition);
+  assert_equals(report.body.destination, destination);
+}
+
+function validateReports(reports, expected_count, check, context_url, resource_url) {
+  assert_equals(reports.length, expected_count);
+  check(reports, context_url, resource_url);
+}
+
+async function runRemoteContextTest(uuid, expected_count, check, context_url, resource_url) {
+  // Cache the resource in the local context, which does not have DocumentIsolationPolicy.
+  await putInCache(resource_url);
+
+  // Have the remote context load the resource and wait for the expected number
+  // of reports.
+  const ctx = new RemoteContext(uuid);
+  const reports = await ctx.execute_script(
+    async (url, count) => {
+      const reports_received = [];
+
+      // Register an observer that will wait for reports.
+      const receivedEveryReports = new Promise(resolve => {
+        if (count == 0)
+          resolve();
+
+        const observer = new ReportingObserver((rs) => {
+          for (const r of rs) {
+            reports_received.push(r.toJSON());
+          }
+          if (count <= reports_received.length)
+            resolve();
+        });
+        observer.observe();
+
+      });
+
+      // Try to fetch the resource in the cache. This might be blocked by
+      // DocumentIsolationPolicy.
+      const cache = await caches.open('v1');
+      try {
+        const response = await cache.match(url);
+      } catch(error) {}
+
+      await receivedEveryReports;
+      return reports_received;
+    }, [resource_url, expected_count]);
+  validateReports(reports, expected_count, check, context_url, resource_url);
+}
+
+async function runIFrameTest(t, check, resource_url, expected_count) {
+  // Load an iframe with DocumentIsolationPolicy reporting.
+  const uuid = token();
+  const frame_url = FRAME_URL + '&uuid=' + uuid;
+  const frame = await with_iframe(frame_url);
+  t.add_cleanup(() => frame.remove());
+
+  await runRemoteContextTest(uuid, expected_count, check, frame_url, resource_url);
+}
+
+async function runDedicatedWorkerTest(t, check, resource_url, expected_count) {
+  // Create a worker with DocumentIsolationPolicy reporting.
+  const uuid = token();
+  const worker_url = WORKER_URL + '&uuid=' + uuid;
+  const worker = new Worker(worker_url);
+  worker.addEventListener('error', t.unreached_func('Worker.onerror'));
+  t.add_cleanup(() => worker.terminate());
+
+  await runRemoteContextTest(uuid, expected_count, check, worker_url, resource_url);
+}
+
+async function runSharedWorkerTest(t, check, resource_url, expected_count) {
+  // Create a shared worker with DocumentIsolationPolicy reporting.
+  const uuid = token();
+  const worker_url = WORKER_URL +
+    '&uuid=' + uuid;
+  const worker = new SharedWorker(worker_url);
+  worker.addEventListener('error', t.unreached_func('Worker.onerror'));
+
+  await runRemoteContextTest(uuid, expected_count, check, worker_url, resource_url);
+}
+
+async function runIFrameWithServiceWorkerTest(t, check, resource_url, expected_count) {
+  // Here we use a Service Worker without DIP.
+  const SERVICE_WORKER_URL = `${ORIGIN}/common/dispatcher/executor-service-worker.js`;
+  const reg = await service_worker_unregister_and_register(
+    t, SERVICE_WORKER_URL, FRAME_URL);
+  const worker = reg.installing || reg.waiting || reg.active;
+  worker.addEventListener('error', t.unreached_func('Worker.onerror'));
+
+  // Load an iframe with DocumentIsolationPolicy reporting.
+  const uuid = token();
+  const frame_url = FRAME_URL +
+    '&uuid=' + uuid;
+  const frame = await with_iframe(frame_url);
+
+  t.add_cleanup(() => {
+    reg.unregister();
+    frame.remove();
+  });
+
+  await runRemoteContextTest(uuid, expected_count, check, frame_url, resource_url);
+}
+
+// We want to test several URLs in various environments (document,
+// dedicated worker, shared worser, service worker). As expectations
+// are independent of environment except for the context URLs in reports,
+// we define ENVIRONMENTS and CASES to reduce the code duplication.
+//
+// ENVIRONMENTS is a list of dictionaries. Each dictionary consists of:
+//  - tag: the name of the environment
+//  - run: an async function which generates reports
+//    - test: a testharness Test object
+//    - url: the URL for a test case (see below)
+//
+// CASES is a list of test cases. Each test case consists of:
+//  - name: the name of the test case
+//  - url: the URL of the test case
+//  - check: a function to check the results
+//    - reports: the generated reports
+//    - url: the URL of the test case
+//    - contextUrl: the URL of the environment settings object (see
+//                  ENVORONMENTS)
+
+const ENVIRONMENTS = {
+  "document": runIFrameTest,
+  "dedicated worker": runDedicatedWorkerTest,
+  "shared worker": runSharedWorkerTest,
+  "document with service worker": runIFrameWithServiceWorkerTest,
+};
+
+const CASES = [
+  {
+    name: 'same-origin',
+    url: '/common/square.png',
+    expected_count: 0,
+    check: (reports, url, contextUrl) => {}
+  },
+  {
+    name: 'blocked due to DIP',
+    url: `${REMOTE_ORIGIN}/common/square.png`,
+    expected_count: 2,
+    check: (reports, contextUrl, url) => {
+      checkReport(reports[0], contextUrl, url, 'reporting', '');
+      checkReport(reports[1], contextUrl, url, 'enforce', '');
+    }
+  },
+  {
+    name: 'blocked during redirect',
+    url: `${ORIGIN}/common/redirect.py?location=` +
+      encodeURIComponent(`${REMOTE_ORIGIN}/common/square.png`),
+    expected_count: 2,
+    check: (reports, contextUrl, url) => {
+      checkReport(reports[0], contextUrl, url, 'reporting', '');
+      checkReport(reports[1], contextUrl, url, 'enforce', '');
+    },
+  }
+];
+
+for (const [tag, run] of Object.entries(ENVIRONMENTS)) {
+  for (const testcase of CASES) {
+    promise_test(async (t) => {
+      const reports =
+        await run(t, testcase.check, testcase.url, testcase.expected_count);
+    }, `[${tag}] ${testcase.name}`);
+  }
+}
+
+</script>
diff --git a/tests/wpt/tests/html/rendering/replaced-elements/images/img-represents-nothing-style-mutation.html b/tests/wpt/tests/html/rendering/replaced-elements/images/img-represents-nothing-style-mutation.html
new file mode 100644
index 00000000000..46ba6d0b9f2
--- /dev/null
+++ b/tests/wpt/tests/html/rendering/replaced-elements/images/img-represents-nothing-style-mutation.html
@@ -0,0 +1,20 @@
+<!doctype html>
+<title>&lt;img> representing nothing and image related style mutation</title>
+<link rel="help" href="https://html.spec.whatwg.org/multipage/rendering.html#images-3">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<img>
+<script>
+  test(t => {
+    const img = document.querySelector('img');
+    const boundsBefore = img.getBoundingClientRect();
+    assert_equals(boundsBefore.width, 0);
+    assert_equals(boundsBefore.height, 0);
+
+    img.style.imageOrientation = 'none';
+
+    const boundsAfter = img.getBoundingClientRect();
+    assert_equals(boundsAfter.width, 0);
+    assert_equals(boundsAfter.height, 0);
+  });
+</script>
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/focus-ring-rendering-ref.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/focus-ring-rendering-ref.html
new file mode 100644
index 00000000000..b14baa52535
--- /dev/null
+++ b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/focus-ring-rendering-ref.html
@@ -0,0 +1,10 @@
+<!DOCTYPE html>
+<link rel=stylesheet href="resources/customizable-select-styles.css">
+
+<div id="target" class="customizable-select-button" tabindex="0">
+  <span>Option 1</span>
+</div>
+
+<script>
+  onload = () => target.focus();
+</script>
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.tentative.html
new file mode 100644
index 00000000000..6b51a61c59f
--- /dev/null
+++ b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/focus-ring-rendering.tentative.html
@@ -0,0 +1,17 @@
+<!DOCTYPE html>
+<link rel=help href="https://crbug.com/389729368">
+<link rel=match href="focus-ring-rendering-ref.html">
+
+<style>
+select {
+  appearance: base-select;
+}
+</style>
+
+<select id="target">
+  <option>Option 1</option>
+</select>
+
+<script>
+  onload = () => target.focus();
+</script>
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/native-popup-with-wrapper-div-ref.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/native-popup-with-wrapper-div-ref.html
deleted file mode 100644
index 6540e324b5d..00000000000
--- a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/native-popup-with-wrapper-div-ref.html
+++ /dev/null
@@ -1,19 +0,0 @@
-<!DOCTYPE html>
-<html class=reftest-wait>
-<script src="/resources/testdriver.js"></script>
-<script src="/resources/testdriver-vendor.js"></script>
-
-<select>
-  <option>one</option>
-  <hr>
-  <option>two</option>
-</select>
-
-<script>
-(async () => {
-  await test_driver.click(document.querySelector('select'));
-  document.activeElement.blur();
-  await new Promise(requestAnimationFrame);
-  document.documentElement.classList.remove('reftest-wait');
-})();
-</script>
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/native-popup-with-wrapper-div.tentative.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/native-popup-with-wrapper-div.tentative.html
deleted file mode 100644
index 608fbb86546..00000000000
--- a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/native-popup-with-wrapper-div.tentative.html
+++ /dev/null
@@ -1,25 +0,0 @@
-<!DOCTYPE html>
-<html class=reftest-wait>
-<link rel=author href="mailto:jarhar@chromium.org">
-<link rel=help href="https://github.com/whatwg/html/issues/9799">
-<link rel=match href="native-popup-with-wrapper-div-ref.html">
-<link rel=assert title="The native popup of a select should show options descending from a wrapper div">
-<script src="/resources/testdriver.js"></script>
-<script src="/resources/testdriver-vendor.js"></script>
-
-<select>
-  <div>
-    <option>one</option>
-    <hr>
-    <option>two</option>
-  </div>
-</select>
-
-<script>
-(async () => {
-  await test_driver.click(document.querySelector('select'));
-  document.activeElement.blur();
-  await new Promise(requestAnimationFrame);
-  document.documentElement.classList.remove('reftest-wait');
-})();
-</script>
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-home-end-pagedown-pageup-detailed.optional.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-home-end-pagedown-pageup-detailed.optional.html
index bf5ec0c1f8e..ddbfb638b95 100644
--- a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-home-end-pagedown-pageup-detailed.optional.html
+++ b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-home-end-pagedown-pageup-detailed.optional.html
@@ -1,5 +1,7 @@
 <!DOCTYPE html>
 <html lang="en">
+<meta charset="utf-8">
+<meta name="timeout" content="long">
 <script src='/resources/testharness.js'></script>
 <script src='/resources/testharnessreport.js'></script>
 <script src="/resources/testdriver.js"></script>
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.tentative.html
new file mode 100644
index 00000000000..5ccaa111499
--- /dev/null
+++ b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-iterate-before-beginning.tentative.html
@@ -0,0 +1,42 @@
+<!DOCTYPE html>
+<link rel=author href="mailto:jarhar@chromium.org">
+<link rel=help href="https://issues.chromium.org/issues/388299752">
+<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>
+
+<style>
+select, ::picker(select) {
+  appearance: base-select;
+}
+</style>
+
+<select>
+  <button>button</button>
+  <option class=one>one</option>
+  <option>two</option>
+</select>
+
+<script>
+promise_test(async () => {
+  const select = document.querySelector('select');
+  const firstOption = document.querySelector('option.one');
+  const arrowUp = '\uE013';
+
+  assert_equals(getComputedStyle(select).appearance, 'base-select',
+    'appearance:base-select must be supported in order to run this test.');
+
+  await test_driver.click(select);
+  assert_true(select.matches(':open'),
+    'select should open after clicking it.');
+  assert_equals(document.activeElement, firstOption,
+    'The first option should be focused after opening the select.');
+
+  for (let i = 0; i < 3; i++) {
+    await test_driver.send_keys(firstOption, arrowUp);
+    assert_equals(document.activeElement, firstOption,
+      'The first option should remain focused after pressing ArrowUp.');
+  }
+}, 'Attempting to focus the previous option while focused on the first option should not crash.');
+</script>
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.tentative.html
index f9c873eb852..821fdecf291 100644
--- 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.tentative.html
@@ -1,4 +1,5 @@
 <!DOCTYPE html>
+<meta name=timeout content=long>
 <link rel=author href="mailto:jarhar@chromium.org">
 <link rel=help href="https://bugs.chromium.org/p/chromium/issues/detail?id=1422275">
 <link rel=help href="https://github.com/openui/open-ui/issues/433#issuecomment-1452461404">
@@ -74,7 +75,11 @@ for (const id of ['fallbackbutton', 'custombutton']) {
     let firedChange = false;
     select.addEventListener('input', () => firedInput = true);
     select.addEventListener('change', () => firedChange = true);
-    await test_driver.click(optionTwo);
+    await (new test_driver.Actions()
+      .pointerMove(1, 1, {origin: optionTwo})
+      .pointerDown()
+      .pointerUp())
+      .send();
     assert_false(select.matches(':open'),
       'Select should be closed after clicking an option.');
     assert_equals(select.value, 'two',
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-multiple-base-appearance-ref.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-multiple-base-appearance-ref.html
index f94d1dd87e2..45a74da7559 100644
--- a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-multiple-base-appearance-ref.html
+++ b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-multiple-base-appearance-ref.html
@@ -1,6 +1,7 @@
 <!DOCTYPE html>
 <select multiple>
   <option>one</option>
+  <option>two div button</option>
 </select>
 
 <select multiple size=2>
diff --git a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-multiple-base-appearance.html b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-multiple-base-appearance.html
index e8079a0a642..48673b446bc 100644
--- a/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-multiple-base-appearance.html
+++ b/tests/wpt/tests/html/semantics/forms/the-select-element/customizable-select/select-multiple-base-appearance.html
@@ -11,6 +11,11 @@ select, ::picker(select) {
 
 <select multiple>
   <option>one</option>
+  <option>
+    two
+    <div>div</div>
+    <button>button</button>
+  </option>
 </select>
 
 <select multiple size=2>
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.tentative.html
index 09bea44a340..da546658f89 100644
--- 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.tentative.html
@@ -116,6 +116,8 @@ promise_test(async (t) => {
   assert_true(select1.matches(':open'));
   style.remove();
   assert_equals(getComputedStyle(select1,'::picker(select)').appearance,'none');
+  await new Promise(requestAnimationFrame);
+  await new Promise(requestAnimationFrame);
   assert_false(select1.matches(':open'),'changing appearance while the picker is open should close it');
 }, 'Switching appearance in JS after picker is open should close the picker');
 </script>
diff --git a/tests/wpt/tests/html/semantics/interactive-elements/the-dialog-element/dialog-closedby.html b/tests/wpt/tests/html/semantics/interactive-elements/the-dialog-element/dialog-closedby.html
index cb72b701a0c..65902ed2d5f 100644
--- a/tests/wpt/tests/html/semantics/interactive-elements/the-dialog-element/dialog-closedby.html
+++ b/tests/wpt/tests/html/semantics/interactive-elements/the-dialog-element/dialog-closedby.html
@@ -81,7 +81,7 @@
             expectedReflectionWhileClosed = 'none';
             break;
           default:
-            assert_notreached('Invalid expectation');
+            assert_unreached('Invalid expectation');
         }
         // Check reflection
         assert_equals(closedByReflectionWhileOpen,expectedReflectionWhileOpen,'Reflection should be limited to known values (open)');
diff --git a/tests/wpt/tests/html/semantics/interactive-elements/the-dialog-element/toggle-events.tentative.html b/tests/wpt/tests/html/semantics/interactive-elements/the-dialog-element/toggle-events.html
similarity index 100%
rename from tests/wpt/tests/html/semantics/interactive-elements/the-dialog-element/toggle-events.tentative.html
rename to tests/wpt/tests/html/semantics/interactive-elements/the-dialog-element/toggle-events.html
diff --git a/tests/wpt/tests/html/semantics/popovers/popover-attribute-basic.html b/tests/wpt/tests/html/semantics/popovers/popover-attribute-basic.html
index 067ce18f6a0..51fc8885629 100644
--- a/tests/wpt/tests/html/semantics/popovers/popover-attribute-basic.html
+++ b/tests/wpt/tests/html/semantics/popovers/popover-attribute-basic.html
@@ -314,7 +314,7 @@ window.onload = () => {
         popover.popover = type;
         break;
       default:
-        assert_notreached();
+        assert_unreached();
     }
   }
   ["attr","idl"].forEach(method => {
diff --git a/tests/wpt/tests/html/semantics/popovers/resources/popover-utils.js b/tests/wpt/tests/html/semantics/popovers/resources/popover-utils.js
index eb5dab38245..10783e6fc39 100644
--- a/tests/wpt/tests/html/semantics/popovers/resources/popover-utils.js
+++ b/tests/wpt/tests/html/semantics/popovers/resources/popover-utils.js
@@ -54,34 +54,6 @@ async function finishAnimations(popover) {
   popover.getAnimations({subtree: true}).forEach(animation => animation.finish());
   await waitForRender();
 }
-let mousemoveInfo;
-function mouseOver(element) {
-  mousemoveInfo?.controller?.abort();
-  const controller = new AbortController();
-  mousemoveInfo = {element, controller, moved: false, started: performance.now()};
-  return (new test_driver.Actions())
-    .pointerMove(0, 0, {origin: element})
-    .send()
-    .then(() => {
-      document.addEventListener("mousemove", (e) => {mousemoveInfo.moved = true;}, {signal: controller.signal});
-    })
-}
-function msSinceMouseOver() {
-  return performance.now() - mousemoveInfo.started;
-}
-function assertMouseStillOver(element) {
-  assert_equals(mousemoveInfo.element, element, 'Broken test harness');
-  assert_false(mousemoveInfo.moved,'Broken test harness');
-}
-async function waitForHoverTime(hoverWaitTimeMs) {
-  await new Promise(resolve => step_timeout(resolve,hoverWaitTimeMs));
-  await waitForRender();
-};
-async function mouseHover(element,hoverWaitTimeMs) {
-  await mouseOver(element);
-  await waitForHoverTime(hoverWaitTimeMs);
-  assertMouseStillOver(element);
-}
 
 // This is a "polyfill" of sorts for the `defaultopen` attribute.
 // It can be called before window.load is complete, and it will
diff --git a/tests/wpt/tests/html/semantics/the-button-element/interest-target/interestevent-dispatch-shadow.tentative.html b/tests/wpt/tests/html/semantics/the-button-element/interest-target/interestevent-dispatch-shadow.tentative.html
index 146f7fb5ec4..ac1b72b0ef8 100644
--- a/tests/wpt/tests/html/semantics/the-button-element/interest-target/interestevent-dispatch-shadow.tentative.html
+++ b/tests/wpt/tests/html/semantics/the-button-element/interest-target/interestevent-dispatch-shadow.tentative.html
@@ -59,7 +59,7 @@
     const button = shadow.appendChild(document.createElement("button"));
     const interestee = host.appendChild(document.createElement("div"));
     button.interestTargetElement = interestee;
-    button.style = "interest-target-show-delay: 0s; interest-target-hide-delay: 0s;";
+    button.style = "interest-target-delay: 0s";
     let event = null;
     let eventTarget = null;
     let eventSource = null;
diff --git a/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-anchor-event-dispatch.tentative.html b/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-anchor-event-dispatch.tentative.html
index 931ea1cfdef..ae9198a91d5 100644
--- a/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-anchor-event-dispatch.tentative.html
+++ b/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-anchor-event-dispatch.tentative.html
@@ -12,17 +12,36 @@
 <script src="resources/invoker-utils.js"></script>
 
 <div id="interestee"></div>
+<a id="nohref" interesttarget="interestee">Anchor</a>
 <a href="/" id="interestanchor" interesttarget="interestee">Anchor</a>
 <button id="otherbutton">Other Button</button>
 <style>
   [interesttarget] {
-    interest-target-show-delay: 0s;
-    interest-target-hide-delay: 0s;
+    interest-target-delay: 0s;
   }
 </style>
 
 <script>
   promise_test(async function (t) {
+    t.add_cleanup(async () => {
+      await hoverOver(otherbutton);
+    });
+    let gotEvent = false;
+    interestee.addEventListener("interest", () => (gotEvent = true));
+    await hoverOver(nohref);
+    assert_false(gotEvent, "InterestEvent should not get fired");
+    nohref.setAttribute('href','foo');
+    await hoverOver(nohref);
+    assert_false(gotEvent, "adding href while the element is already hovered should not fire interest");
+    await hoverOver(otherbutton);
+    await hoverOver(nohref);
+    assert_true(gotEvent, "interest should now be fired");
+  }, "InterestEvent is not dispatched unless the anchor has an href");
+
+  promise_test(async function (t) {
+    t.add_cleanup(async () => {
+      await hoverOver(otherbutton);
+    });
     let event = null;
     interestee.addEventListener("interest", (e) => (event = e), { once: true });
     await hoverOver(interestanchor);
diff --git a/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-area-event-dispatch.tentative.html b/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-area-event-dispatch.tentative.html
index eadc8fb1759..4bd5165198e 100644
--- a/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-area-event-dispatch.tentative.html
+++ b/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-area-event-dispatch.tentative.html
@@ -12,24 +12,41 @@
 <script src="resources/invoker-utils.js"></script>
 
 <div id="interestee"></div>
-<map id="map">
-  <area href="/" shape="default" id="interestarea" interesttarget="interestee">
-</map>
-<img src="/images/blue.png" usemap="#map">
+<map id="map1"><area shape="default" id="nohref" interesttarget="interestee"></map>
+<img id=nohref_img src="/images/blue.png" usemap="#map1">
+<map id="map2"><area href="/" shape="default" id="interestarea" interesttarget="interestee"></map>
+<img id=interestarea_img src="/images/blue.png" usemap="#map2">
 <button id="otherbutton">Other Button</button>
 <style>
   [interesttarget] {
-    interest-target-show-delay: 0s;
-    interest-target-hide-delay: 0s;
+    interest-target-delay: 0s;
   }
 </style>
 
 <script>
   promise_test(async function (t) {
-    t.add_cleanup(() => otherbutton.focus());
+    t.add_cleanup(async () => {
+      await hoverOver(otherbutton);
+    });
+    let gotEvent = false;
+    interestee.addEventListener("interest", () => (gotEvent = true), { once: true });
+    await hoverOver(nohref_img);
+    assert_false(gotEvent, "InterestEvent should not get fired");
+    nohref.setAttribute('href','foo');
+    await hoverOver(nohref_img);
+    assert_false(gotEvent, "adding href while the element is already hovered should not fire interest");
+    await hoverOver(otherbutton);
+    await hoverOver(nohref_img);
+    assert_true(gotEvent, "interest should now be fired");
+  }, "InterestEvent is not dispatched unless the area has an href");
+
+  promise_test(async function (t) {
+    t.add_cleanup(async () => {
+      await hoverOver(otherbutton);
+    });
     let event = null;
     interestee.addEventListener("interest", (e) => (event = e), { once: true });
-    await hoverOver(interestarea);
+    await hoverOver(interestarea_img);
     assert_true(!!event, "InterestEvent is fired");
     assert_true(event instanceof InterestEvent, "event is InterestEvent");
     assert_equals(event.type, "interest", "type");
diff --git a/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-basic-delays.tentative.html b/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-basic-delays.tentative.html
index eb5d9b6a855..9a4806a8ae6 100644
--- a/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-basic-delays.tentative.html
+++ b/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-basic-delays.tentative.html
@@ -25,17 +25,17 @@ const hoverWaitTime = 4000; // How long to wait to cover the delay for sure.
 
 promise_test(async (t) => {
   assert_true(hoverWaitTime >= 2*invokerDelays,'invokerDelays is the value from CSS, hoverWaitTime should be longer than that');
-  let {popover:div, invoker, unrelated} = createPopoverAndInvokerForHoverTests(t, invokerDelays, invokerDelays);
+  let {popover:div, invoker, unrelated} = await createPopoverAndInvokerForHoverTests(t, invokerDelays, invokerDelays);
   div.removeAttribute('popover'); // No longer a popover
   let events = [];
   div.addEventListener('interest',() => events.push('interest'));
   div.addEventListener('loseinterest',() => events.push('loseinterest'));
   // Quickly do the entire test.
-  await mouseOverAndRecord(invoker);
+  await hoverOver(invoker);
   const checkpoint1 = [...events];
   await waitForHoverTime(hoverWaitTime);
   const checkpoint2 = [...events];
-  await mouseOverAndRecord(unrelated);
+  await hoverOver(unrelated);
   const checkpoint3 = [...events];
   await waitForHoverTime(hoverWaitTime);
   const checkpoint4 = [...events];
diff --git a/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-button-event-dispatch.tentative.html b/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-button-event-dispatch.tentative.html
index 6057f4ca60f..67ab884d01d 100644
--- a/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-button-event-dispatch.tentative.html
+++ b/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-button-event-dispatch.tentative.html
@@ -16,8 +16,7 @@
 <button id="otherbutton">Other Button</button>
 <style>
   [interesttarget] {
-    interest-target-show-delay: 0s;
-    interest-target-hide-delay: 0s;
+    interest-target-delay: 0s;
   }
 </style>
 
diff --git a/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-css-properties.tentative.html b/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-css-properties.tentative.html
index b91614b163c..8e918b0434c 100644
--- a/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-css-properties.tentative.html
+++ b/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-css-properties.tentative.html
@@ -1,8 +1,7 @@
 <!DOCTYPE html>
 <meta charset="utf-8">
-<title>Popover API CSS parsing with computed values</title>
 <link rel="author" href="mailto:masonf@chromium.org">
-<link rel=help href="https://open-ui.org/components/popover.research.explainer">
+<link rel="help" href="https://open-ui.org/components/interest-invokers.explainer">
 <script src="/resources/testharness.js"></script>
 <script src="/resources/testharnessreport.js"></script>
 <script src="/css/support/parsing-testcommon.js"></script>
diff --git a/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-css-shorthands.tentative.html b/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-css-shorthands.tentative.html
new file mode 100644
index 00000000000..e3260d1b052
--- /dev/null
+++ b/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-css-shorthands.tentative.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<link rel="author" href="mailto:masonf@chromium.org">
+<link rel="help" href="https://open-ui.org/components/interest-invokers.explainer">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/shorthand-testcommon.js"></script>
+<script src="/css/support/parsing-testcommon.js"></script>
+
+<body>
+<script>
+test_shorthand_value('interest-target-delay', '0.23s 450ms', {
+  'interest-target-show-delay': '0.23s',
+  'interest-target-hide-delay': '450ms'
+});
+test_shorthand_value('interest-target-delay', '0.23s', {
+  'interest-target-show-delay': '0.23s',
+  'interest-target-hide-delay': '0.23s'
+});
+test_shorthand_value('interest-target-delay', '450ms', {
+  'interest-target-show-delay': '450ms',
+  'interest-target-hide-delay': '450ms'
+});
+
+test_invalid_value('interest-target-delay', '');
+test_invalid_value('interest-target-delay', '0');
+test_invalid_value('interest-target-delay', '0.23s 0.23s 0.23s');
+</script>
diff --git a/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-has-interest-pseudo.tentative.html b/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-has-interest-pseudo.tentative.html
new file mode 100644
index 00000000000..2ace6fdcd44
--- /dev/null
+++ b/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-has-interest-pseudo.tentative.html
@@ -0,0 +1,63 @@
+<!DOCTYPE html>
+<meta charset="utf-8" />
+<link rel="author" href="mailto:masonf@chromium.org">
+<link rel="help" href="https://open-ui.org/components/interest-invokers.explainer">
+<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/invoker-utils.js"></script>
+
+<div id=unrelated>Unrelated</div>
+<button id=button interesttarget=target>Button</button>
+<div id=target>Target</div>
+<style>
+  button {
+    interest-target-delay: 0s;
+  }
+</style>
+<script>
+promise_test(async (t) => {
+  let hasInterest = false;
+  target.addEventListener('interest',() => (hasInterest=true));
+  target.addEventListener('loseinterest',() => (hasInterest=false));
+  assert_false(button.matches(':has-interest'));
+  assert_false(target.matches(':has-interest'));
+  assert_false(hasInterest);
+  await hoverOver(button);
+  assert_true(button.matches(':has-interest'),'hovering button shows interest');
+  assert_false(target.matches(':has-interest'),'target never matches the pseudo class');
+  assert_true(hasInterest,'event was fired');
+  await hoverOver(target);
+  assert_true(button.matches(':has-interest'),'hovering the target maintains interest');
+  assert_false(target.matches(':has-interest'),'target never matches the pseudo class');
+  assert_true(hasInterest,'loseinterest event was not yet fired');
+  await hoverOver(unrelated);
+  assert_false(button.matches(':has-interest'),'hovering unrelated loses interest');
+  assert_false(target.matches(':has-interest'),'target never matches the pseudo class');
+  assert_false(hasInterest,'loseinterest event was fired');
+},'The :has-interest pseudo class matches when an element has interest');
+
+const invokerDelayMs = 100; // The CSS delay setting.
+const hoverWaitTime = 200; // How long to wait to cover the delay for sure.
+promise_test(async (t) => {
+  t.add_cleanup(() => button.removeAttribute('style'));
+  button.setAttribute('style',`interest-target-delay: ${invokerDelayMs}ms`);
+  assert_false(button.matches(':has-interest'));
+  const token1 = await mouseOverAndRecord(t,button);
+  const immediate_result = button.matches(':has-interest');
+  if (msSinceMouseOver(token1) < invokerDelayMs) {
+    assert_false(immediate_result,':has-interest should not match before the show delay elapses');
+  }
+  await waitForHoverTime(hoverWaitTime);
+  assert_true(button.matches(':has-interest'),':has-interest should match after hover delay');
+  const token2 = await mouseOverAndRecord(t,unrelated);
+  const immediate_result2 = button.matches(':has-interest');
+  if (msSinceMouseOver(token2) < invokerDelayMs) {
+    assert_true(immediate_result2,':has-interest should still match before the hide delay elapses');
+  }
+  await waitForHoverTime(hoverWaitTime);
+  assert_false(button.matches(':has-interest'),':has-interest should not match after de-hover delay');
+},'The :has-interest pseudo class only matches after delays, once interest is shown');
+</script>
diff --git a/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-hide-delay.tentative.html b/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-hide-delay.tentative.html
index a1499b83752..71d4babec7c 100644
--- a/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-hide-delay.tentative.html
+++ b/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-hide-delay.tentative.html
@@ -28,61 +28,61 @@ const hoverWaitTime = 200; // How long to wait to cover the delay for sure.
 async function makeTestParts(t) {
   // This ensures the tests in this file don't succeed sometimes, due to the above NOTE.
   assert_true(HTMLAnchorElement.prototype.hasOwnProperty('interestTargetElement'),'interesttarget is not supported');
-  let {popover, invoker, unrelated} = createPopoverAndInvokerForHoverTests(t, 0, invokerHideDelay);
+  let {popover, invoker, unrelated} = await createPopoverAndInvokerForHoverTests(t, 0, invokerHideDelay);
   let mouseOverInvoker;
   invoker.innerHTML = '<span><span>Click me</span></span>';
   mouseOverInvoker = invoker.firstElementChild.firstElementChild;
   assert_true(!!mouseOverInvoker);
   assert_false(popover.matches(':popover-open'));
-  await mouseOverAndRecord(invoker); // Always start with the mouse over the invoker, which will invoke the popover immediately
+  await hoverOver(invoker); // Always start with the mouse over the invoker, which will invoke the popover immediately
   assert_true(popover.matches(':popover-open'));
   return {popover, invoker, unrelated, mouseOverInvoker};
 }
 
 promise_test(async (t) => {
   const {popover,invoker} = await makeTestParts(t);
-  await mouseOverAndRecord(invoker);
+  const token = await mouseOverAndRecord(t,invoker);
   await waitForHoverTime(hoverWaitTime);
-  assert_true(msSinceMouseOver() >= hoverWaitTime,'waitForHoverTime should wait the specified time');
+  assert_true(msSinceMouseOver(token) >= hoverWaitTime,'waitForHoverTime should wait the specified time');
   assert_true(hoverWaitTime > invokerHideDelay,'invokerHideDelay is the value from CSS, hoverWaitTime should be longer than that');
 },'Test the harness');
 
 promise_test(async (t) => {
   const {popover,invoker,unrelated} = await makeTestParts(t);
-  await mouseOverAndRecord(unrelated);
+  const token = await mouseOverAndRecord(t,unrelated);
   let showing = popover.matches(':popover-open');
-  if (msSinceMouseOver() < invokerHideDelay) {
+  if (msSinceMouseOver(token) < invokerHideDelay) {
     // Only check if the WPT runner wasn't too slow.
     assert_true(showing,'interest shouldn\'t be immediately lost');
   }
-  await mouseOverAndRecord(unrelated);
+  await hoverOver(unrelated);
   await waitForHoverTime(hoverWaitTime);
   assert_false(popover.matches(':popover-open'),'interest should be lost after delay');
 },`The interest-target-hide-delay causes interest to be lost after a delay`);
 
 promise_test(async (t) => {
   const {popover,invoker,unrelated} = await makeTestParts(t);
-  await mouseOverAndRecord(popover);
+  await hoverOver(popover);
   await waitForHoverTime(hoverWaitTime);
   assert_true(popover.matches(':popover-open'),'hovering the interest target element should keep it showing');
-  await mouseOverAndRecord(unrelated);
+  const token = await mouseOverAndRecord(t,unrelated);
   let showing = popover.matches(':popover-open');
-  if (msSinceMouseOver() >= invokerHideDelay)
+  if (msSinceMouseOver(token) >= invokerHideDelay)
     return; // The WPT runner was too slow.
   assert_true(showing,'subsequently hovering unrelated element shouldn\'t immediately cause interest lost');
-  await mouseOverAndRecord(unrelated);
+  await hoverOver(unrelated);
   await waitForHoverTime(hoverWaitTime);
   assert_false(popover.matches(':popover-open'),'hovering unrelated element should cause interest lost after delay');
 },`hovering the interest target element keeps the invoker from losing interest`);
 
 promise_test(async (t) => {
   const {popover,invoker,unrelated,mouseOverInvoker} = await makeTestParts(t);
-  await mouseOverAndRecord(popover);
+  await hoverOver(popover);
   await waitForHoverTime(hoverWaitTime);
-  await mouseOverAndRecord(mouseOverInvoker);
+  await hoverOver(mouseOverInvoker);
   await waitForHoverTime(hoverWaitTime);
   assert_true(popover.matches(':popover-open'),'Moving hover between invoker and target should not cause interest lost');
-  await mouseOverAndRecord(unrelated);
+  await hoverOver(unrelated);
   await waitForHoverTime(hoverWaitTime);
   assert_false(popover.matches(':popover-open'),'Moving hover to unrelated should cause interest lost');
 },`moving hover between the invoker and the target prevents interest lost`);
diff --git a/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-keyboard-behavior.tentative.html b/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-keyboard-behavior.tentative.html
new file mode 100644
index 00000000000..93930140b3d
--- /dev/null
+++ b/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-keyboard-behavior.tentative.html
@@ -0,0 +1,162 @@
+<!DOCTYPE html>
+<meta charset="utf-8" />
+<meta name="timeout" content="long">
+<link rel="author" href="mailto:masonf@chromium.org">
+<link rel="help" href="https://open-ui.org/components/interest-invokers.explainer/" />
+<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/invoker-utils.js"></script>
+
+<div id="examples">
+  <button id="<button>" interesttarget=target>Button</button>
+  <a id="<a>" href=foo interesttarget=target>Link</a>
+  <img src="/images/blue.png" usemap="#map">
+  <map id=map>
+    <area id="<area>" interesttarget=target href="/" shape=default id=interestarea>
+  </map>
+    <svg viewBox="0 0 100 100" style="width: 100px" xmlns="http://www.w3.org/2000/svg">
+    <a id="SVG <a>" href=foo interesttarget=target>
+      <text x=50 y=90>SVG A</text>
+    </a>
+  </svg>
+</div>
+
+<div id=target popover>Popover</div>
+<button id="otherbutton">Other button</button>
+<button id="another" interesttarget=anothertarget>Another Button</button>
+<div id=anothertarget popover>Another Popover</div>
+
+<style>
+  [interesttarget] {
+    interest-target-delay: 0s;
+  }
+</style>
+
+<script>
+const kShift = "\uE008";
+const kMeta = "\uE03d";
+const kControl = "\uE009";
+const kAlt = "\uE00A";
+const kArrowUp = '\uE013';
+const kEscape = '\uE00C';
+function sendLoseInterestHotkey() {
+  return new test_driver.Actions()
+    .keyDown(kEscape)
+    .keyUp(kEscape)
+    .send();
+}
+function sendShowInterestHotkey(extra_modifier) {
+  assert_not_equals(extra_modifier,kAlt);
+  let actions = new test_driver.Actions();
+  if (extra_modifier) {
+    actions.keyDown(extra_modifier);
+  }
+  actions.keyDown(kAlt)
+    .keyDown(kArrowUp)
+    .keyUp(kArrowUp)
+    .keyUp(kAlt);
+  if (extra_modifier) {
+    actions.keyUp(extra_modifier);
+  }
+  return actions.send();
+}
+const allInterestTargetElements = document.querySelectorAll('#examples [interesttarget]');
+function verifyInterest(onlyElement,description) {
+  [...allInterestTargetElements, another].forEach(el => {
+    const expectInterest = el == onlyElement;
+    assert_equals(el.matches(':has-interest'),expectInterest,`${description}, element ${el.id} should ${expectInterest ? "" : "NOT "}have interest`);
+  })
+}
+allInterestTargetElements.forEach(el => {
+  const description = `${el.id}`;
+  promise_test(async function (t) {
+    target.hidePopover(); // Just in case
+    el.focus();
+    assert_equals(document.activeElement,el,'Elements should all be focusable');
+    assert_false(target.matches(':popover-open'),'focusing does not trigger interest');
+    await sendShowInterestHotkey();
+    assert_true(target.matches(':popover-open'),'Pressing the hot key should trigger interest');
+    verifyInterest(el,`After show interest in ${el.id}`);
+    await sendLoseInterestHotkey();
+    assert_false(target.matches(':popover-open'),'Pressing lose interest hot key should trigger lose interest');
+    verifyInterest(undefined,`After lose interest in ${el.id}`);
+  },`Basic keyboard behavior, ${description}`);
+
+  for (const key of ['Shift','Control','Meta']) {
+    extra_key = eval('k' + key);
+    promise_test(async function (t) {
+      target.hidePopover(); // Just in case
+      el.focus();
+      await sendShowInterestHotkey(extra_key);
+      assert_false(target.matches(':popover-open'),'Pressing the hot key with extra modifiers should not trigger interest');
+    },`Extra ${key} modifier on the gain interest hot key, ${description}`);
+  }
+
+  promise_test(async function (t) {
+    target.hidePopover(); // Just in case
+    target.addEventListener('interest', (e) => e.preventDefault(), {once: true});
+    el.focus();
+    await sendShowInterestHotkey();
+    assert_false(target.matches(':popover-open'));
+  }, `canceling the interest event stops behavior, ${description}`);
+
+  let events = [];
+  function addListeners(t,element) {
+    const controller = new AbortController();
+    const signal = controller.signal;
+    t.add_cleanup(() => controller.abort());
+    element.addEventListener('interest',(e) => events.push(`${e.target.id} interest`),{signal});
+    element.addEventListener('loseinterest',(e) => events.push(`${e.target.id} loseinterest`),{signal});
+  }
+  promise_test(async function (t) {
+    target.hidePopover(); // Just in case
+    anothertarget.hidePopover(); // Just in case
+    events = [];
+    addListeners(t,target);
+    addListeners(t,anothertarget);
+    el.focus();
+    await sendShowInterestHotkey();
+    assert_array_equals(events,['target interest'],'first hotkey');
+    verifyInterest(el,`After show interest in ${el.id}`);
+    another.focus();
+    assert_array_equals(events,['target interest'],'focusing another element does not change interest');
+    verifyInterest(el,`After focus on ${another.id}`);
+    await sendShowInterestHotkey();
+    assert_array_equals(events,['target interest','target loseinterest','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']);
+    verifyInterest(undefined,`After lose interest in ${another.id}`);
+    assert_false(target.matches(':popover-open'));
+    assert_false(anothertarget.matches(':popover-open'));
+  }, `Showing interest in a second element loses interest in the first, ${description}`);
+
+  promise_test(async function (t) {
+    target.hidePopover(); // Just in case
+    anothertarget.hidePopover(); // Just in case
+    events = [];
+    addListeners(t,target);
+    addListeners(t,anothertarget);
+    el.focus();
+    await sendShowInterestHotkey();
+    another.focus();
+    assert_array_equals(events,['target interest'],'setup');
+    verifyInterest(el,`After show interest in ${el.id}`);
+    target.addEventListener('loseinterest',(e) => e.preventDefault(),{once: true});
+    await sendShowInterestHotkey();
+    assert_array_equals(events,['target interest','target loseinterest'],
+        'the loseinterest listener should fire, but anothertarget should not get interest');
+    verifyInterest(el,`After show interest in ${another.id}`);
+    el.focus();
+    await sendLoseInterestHotkey();
+    assert_array_equals(events,['target interest','target loseinterest','target loseinterest'],'Another event fired');
+    assert_false(target.matches(':popover-open'));
+    assert_false(anothertarget.matches(':popover-open'));
+    verifyInterest(undefined,`After lose interest in ${el.id}`);
+  }, `Cancelling loseinterest caused by keyboard-gained interest cancels interest, ${description}`);
+});
+</script>
diff --git a/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-on-popover-behavior.tentative.html b/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-on-popover-behavior.tentative.html
index 40027f0cccc..44071a9ac93 100644
--- a/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-on-popover-behavior.tentative.html
+++ b/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-on-popover-behavior.tentative.html
@@ -17,14 +17,12 @@
 <button id="otherbutton">Other button</button>
 <style>
   [interesttarget] {
-    interest-target-show-delay: 0s;
-    interest-target-hide-delay: 0s;
+    interest-target-delay: 0s;
   }
 </style>
 
 <script>
   async function reset() {
-      hoverOver(otherbutton);
       await hoverOver(otherbutton);
       interestee.hidePopover();
   }
diff --git a/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-show-delay.tentative.html b/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-show-delay.tentative.html
index 599d61f91a8..a260eda3fb7 100644
--- a/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-show-delay.tentative.html
+++ b/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-show-delay.tentative.html
@@ -32,7 +32,7 @@ async function makePopoverAndInvoker(test, invokerLayout, delayMs) {
   if (delayMs === undefined) {
     delayMs = invokerShowDelay;
   }
-  let {popover, invoker, unrelated} = createPopoverAndInvokerForHoverTests(test, delayMs, 1000000);
+  let {popover, invoker, unrelated} = await createPopoverAndInvokerForHoverTests(test, delayMs, 1000000);
   invoker.setAttribute('class','invoker');
   const originalInvoker = invoker;
   const reassignInvokerTargetFn = (p) => {originalInvoker.interestTargetElement = p};
@@ -62,22 +62,22 @@ async function makePopoverAndInvoker(test, invokerLayout, delayMs) {
     originalInvoker.remove();
     await waitForRender();
   });
-  await mouseOverAndRecord(unrelated); // Start by mousing over the unrelated element
+  await hoverOver(unrelated); // Start by mousing over the unrelated element
   await waitForRender();
-  assert_false(popover.matches(':popover-open'));
+  assert_false(popover.matches(':popover-open'),'Popover should start out closed');
   return {popover,invoker,reassignInvokerTargetFn};
 }
 
 ["plain","nested","nested-offset"].forEach(invokerLayout => {
   promise_test(async (t) => {
     const {popover,invoker} = await makePopoverAndInvoker(t,invokerLayout);
-    await mouseOverAndRecord(invoker);
+    const token = await mouseOverAndRecord(t,invoker);
     let showing = popover.matches(':popover-open');
     // See NOTE above.
-    if (msSinceMouseOver() < invokerShowDelay)
+    if (msSinceMouseOver(token) < invokerShowDelay)
       assert_false(showing,'interest should not be shown immediately');
     await waitForHoverTime(hoverWaitTime);
-    assert_true(msSinceMouseOver() >= hoverWaitTime,'waitForHoverTime should wait the specified time');
+    assert_true(msSinceMouseOver(token) >= hoverWaitTime,'waitForHoverTime should wait the specified time');
     assert_true(popover.matches(':popover-open'),'interest should be shown after the delay');
     assert_true(hoverWaitTime > invokerShowDelay,'invokerShowDelay is the CSS setting, hoverWaitTime should be longer than that');
   },`interesttarget fires after a delay, invokerLayout=${invokerLayout}`);
@@ -92,10 +92,10 @@ async function makePopoverAndInvoker(test, invokerLayout, delayMs) {
   promise_test(async (t) => {
     const longerHoverDelay = hoverWaitTime*2;
     const {popover,invoker} = await makePopoverAndInvoker(t,invokerLayout,longerHoverDelay);
-    await mouseOverAndRecord(invoker);
+    const token = await mouseOverAndRecord(t,invoker);
     await waitForHoverTime(hoverWaitTime);
     showing = popover.matches(':popover-open');
-    if (msSinceMouseOver() >= longerHoverDelay)
+    if (msSinceMouseOver(token) >= longerHoverDelay)
       return; // The WPT runner was too slow.
     assert_false(showing,'interesttarget should respect CSS setting');
   },`interesttarget interest-target-show-delay is respected, invokerLayout=${invokerLayout}`);
@@ -106,7 +106,7 @@ async function makePopoverAndInvoker(test, invokerLayout, delayMs) {
     assert_true(popover.matches(':popover-open'));
     let gotInterest = false;
     popover.addEventListener('interest',() => (gotInterest=true),{once:true});
-    await mouseOverAndRecord(invoker);
+    await hoverOver(invoker);
     const stillOpen = popover.matches(':popover-open');
     await waitForHoverTime(hoverWaitTime);
     assert_true(popover.matches(':popover-open'),'popover should stay showing after delay');
@@ -119,7 +119,7 @@ async function makePopoverAndInvoker(test, invokerLayout, delayMs) {
     popover.remove(); // Remove from the document
     let gotInterest = false;
     popover.addEventListener('interest',() => (gotInterest=true),{once:true});
-    await mouseOverAndRecord(invoker);
+    await hoverOver(invoker);
     await waitForHoverTime(hoverWaitTime);
     assert_false(gotInterest,'interest should not be shown if the target is removed');
     // Now put it back in the document and make sure it doesn't trigger.
@@ -134,11 +134,11 @@ async function makePopoverAndInvoker(test, invokerLayout, delayMs) {
     popover2.popover = 'auto';
     document.body.appendChild(popover2);
     t.add_cleanup(() => popover2.remove());
-    await mouseOverAndRecord(invoker);
+    const token = await mouseOverAndRecord(t,invoker);
     let eitherShowing = popover.matches(':popover-open') || popover2.matches(':popover-open');
     reassignInvokerTargetFn(popover2);
     // See NOTE above.
-    if (msSinceMouseOver() >= invokerShowDelay)
+    if (msSinceMouseOver(token) >= invokerShowDelay)
       return; // The WPT runner was too slow.
     assert_false(eitherShowing,'interest should should not be shown immediately');
     await waitForHoverTime(hoverWaitTime);
diff --git a/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-svg-a-event-dispatch.tentative.html b/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-svg-a-event-dispatch.tentative.html
index 31a59f5c281..d5db0502321 100644
--- a/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-svg-a-event-dispatch.tentative.html
+++ b/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-svg-a-event-dispatch.tentative.html
@@ -13,19 +13,35 @@
 
 <div id="interestee"></div>
 <svg viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg">
-  <a href="/" id="interestsvga" interesttarget="interestee">
-    <text x="50" y="90">SVG A</text>
-  </a>
+  <a id="nohref" interesttarget="interestee"><text x="50" y="90">SVG A</text></a>
+</svg>
+<svg viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg">
+  <a href="/" id="interestsvga" interesttarget="interestee"><text x="50" y="90">SVG A</text></a>
 </svg>
 <button id="otherbutton">Other Button</button>
 <style>
   [interesttarget] {
-    interest-target-show-delay: 0s;
-    interest-target-hide-delay: 0s;
+    interest-target-delay: 0s;
   }
 </style>
 
 <script>
+  promise_test(async function (t) {
+    t.add_cleanup(async () => {
+      await hoverOver(otherbutton);
+    });
+    let gotEvent = false;
+    interestee.addEventListener("interest", () => (gotEvent = true));
+    await hoverOver(nohref);
+    assert_false(gotEvent, "InterestEvent should not get fired");
+    nohref.setAttribute('href','foo');
+    await hoverOver(nohref);
+    assert_false(gotEvent, "adding href while the element is already hovered should not fire interest");
+    await hoverOver(otherbutton);
+    await hoverOver(nohref);
+    assert_true(gotEvent, "interest should now be fired");
+  }, "InterestEvent is not dispatched unless the svg <a> has an href");
+
   promise_test(async function (t) {
     t.add_cleanup(async () => {
       await hoverOver(otherbutton);
@@ -41,5 +57,5 @@
     assert_equals(event.isTrusted, true, "isTrusted");
     assert_equals(event.target, interestee, "target");
     assert_equals(event.source, interestsvga, "source");
-  }, "InterestEvent dispatches on svg a hover");
+  }, "InterestEvent dispatches on svg <a> hover");
 </script>
diff --git a/tests/wpt/tests/html/semantics/the-button-element/interest-target/resources/invoker-utils.js b/tests/wpt/tests/html/semantics/the-button-element/interest-target/resources/invoker-utils.js
index cedc823a5ba..0116dbdecb2 100644
--- a/tests/wpt/tests/html/semantics/the-button-element/interest-target/resources/invoker-utils.js
+++ b/tests/wpt/tests/html/semantics/the-button-element/interest-target/resources/invoker-utils.js
@@ -25,34 +25,37 @@ async function hoverOver(element) {
       .send();
   await waitForRender();
 }
-let mousemoveInfo;
-function mouseOverAndRecord(element) {
-  mousemoveInfo?.controller.abort();
+function mouseOverAndRecord(t,element) {
+  let mouseMoveInfo;
+  t.add_cleanup(() => mouseMoveInfo?.controller.abort());
   const controller = new AbortController();
-  mousemoveInfo = {element, controller, moved: false, started: performance.now()};
-  document.addEventListener("mousemove", (e) => {mousemoveInfo.moved = true;}, {signal: controller.signal});
+  mouseMoveInfo = {element, controller, moved: false, started: performance.now()};
+  document.addEventListener("mousemove", (e) => {mouseMoveInfo.moved = true;}, {signal: controller.signal});
   return (new test_driver.Actions())
-    .pointerMove(0, 0, {origin: element})
-    .send();
+      .pointerMove(0, 0, {origin: element})
+      .send()
+      .then(() => mouseMoveInfo);
 }
 // Note that this may err on the side of being too large (reporting a number
 // that is larger than the actual time since the mouseover happened), due to how
 // `mousemoveInfo.started` is initialized, on first mouse move. However, this
 // function is intended to be used as a detector for the test harness taking too
 // long for some tests, so it's ok to be conservative.
-function msSinceMouseOver() {
-  return performance.now() - mousemoveInfo.started;
-}
-function assertMouseStillOver(element) {
-  assert_equals(mousemoveInfo.element, element, 'Broken test harness');
-  assert_false(mousemoveInfo.moved,'Broken test harness');
+function msSinceMouseOver(mouseMoveInfo) {
+  return performance.now() - mouseMoveInfo.started;
 }
 async function waitForHoverTime(hoverWaitTimeMs) {
   await new Promise(resolve => step_timeout(resolve,hoverWaitTimeMs));
   await waitForRender();
 };
 
-function createPopoverAndInvokerForHoverTests(test, showdelayMs, hideDelayMs) {
+async function createPopoverAndInvokerForHoverTests(test, showdelayMs, hideDelayMs) {
+  const unrelated = document.createElement('div');
+  document.body.appendChild(unrelated);
+  unrelated.textContent = 'Unrelated';
+  unrelated.setAttribute('style','position:relative; top:0;');
+  // Ensure we never hover over an active interesttarget element.
+  await hoverOver(unrelated);
   const popover = document.createElement('div');
   popover.popover = 'auto';
   popover.setAttribute('style','top: 200px;');
@@ -74,15 +77,12 @@ function createPopoverAndInvokerForHoverTests(test, showdelayMs, hideDelayMs) {
   assert_equals(actualShowDelay,showdelayMs,'interest-target-show-delay is incorrect');
   const actualHideDelay = Number(getComputedStyle(invoker).interestTargetHideDelay.slice(0,-1))*1000;
   assert_equals(actualHideDelay,hideDelayMs,'interest-target-hide-delay is incorrect');
-  const unrelated = document.createElement('div');
-  document.body.appendChild(unrelated);
-  unrelated.textContent = 'Unrelated';
-  unrelated.setAttribute('style','position:relative; top:0;');
   test.add_cleanup(async () => {
     popover.remove();
     invoker.remove();
     unrelated.remove();
     await waitForRender();
   });
+  assert_false(popover.matches(':popover-open'),'The popover should start out closed');
   return {popover, invoker, unrelated};
 }
diff --git a/tests/wpt/tests/inert/inert-node-is-uneditable.html b/tests/wpt/tests/inert/inert-node-is-uneditable.html
index 983831a89fc..ecb69695793 100644
--- a/tests/wpt/tests/inert/inert-node-is-uneditable.html
+++ b/tests/wpt/tests/inert/inert-node-is-uneditable.html
@@ -13,9 +13,13 @@
 <body>
 <span inert id="not-editable" contenteditable>I'm not editable.</span>
 <span id="editable" contenteditable>I'm editable.</span>
+<span inert>
+  <span id="editable-interactivity" style="interactivity:auto" contenteditable>I'm editable.</span>
+</span>
 <script>
 var notEditable = document.querySelector('#not-editable');
 var editable = document.querySelector('#editable');
+var editableInteractivity = document.querySelector('#editable-interactivity');
 
 function sendKey(key) {
     return new test_driver.Actions()
@@ -40,6 +44,14 @@ promise_test(async () => {
     assert_not_equals(editable.textContent, oldValue);
 }, "Can edit non-inert contenteditable");
 
+promise_test(async () => {
+    editableInteractivity.focus();
+    var oldValue = editableInteractivity.textContent;
+    assert_equals(oldValue, "I'm editable.");
+    await sendKey('a');
+    assert_not_equals(editableInteractivity.textContent, oldValue);
+}, "Can edit interactivity:auto contenteditable inside inert");
+
 </script>
 </body>
 </html>
diff --git a/tests/wpt/tests/interfaces/css-highlight-api.idl b/tests/wpt/tests/interfaces/css-highlight-api.idl
index f3c6b2e9d21..61bf6d4caba 100644
--- a/tests/wpt/tests/interfaces/css-highlight-api.idl
+++ b/tests/wpt/tests/interfaces/css-highlight-api.idl
@@ -25,3 +25,11 @@ partial namespace CSS {
 interface HighlightRegistry {
   maplike<DOMString, Highlight>;
 };
+
+partial interface HighlightRegistry {
+  sequence<Highlight> highlightsFromPoint(float x, float y, optional HighlightsFromPointOptions options = {});
+};
+
+dictionary HighlightsFromPointOptions {
+  sequence<ShadowRoot> shadowRoots = [];
+};
diff --git a/tests/wpt/tests/interfaces/html.idl b/tests/wpt/tests/interfaces/html.idl
index 25b9b457da6..80144a6f328 100644
--- a/tests/wpt/tests/interfaces/html.idl
+++ b/tests/wpt/tests/interfaces/html.idl
@@ -1992,6 +1992,7 @@ interface NavigateEvent : Event {
   readonly attribute DOMString? downloadRequest;
   readonly attribute any info;
   readonly attribute boolean hasUAVisualTransition;
+  readonly attribute Element? sourceElement;
 
   undefined intercept(optional NavigationInterceptOptions options = {});
   undefined scroll();
diff --git a/tests/wpt/tests/interfaces/mediacapture-surface-control.idl b/tests/wpt/tests/interfaces/mediacapture-surface-control.idl
index 964f662da7f..357b5c516f6 100644
--- a/tests/wpt/tests/interfaces/mediacapture-surface-control.idl
+++ b/tests/wpt/tests/interfaces/mediacapture-surface-control.idl
@@ -6,8 +6,10 @@
 partial interface CaptureController {
   sequence<long> getSupportedZoomLevels();
   long getZoomLevel();
-  Promise<undefined> setZoomLevel(long zoomLevel);
-  attribute EventHandler oncapturedzoomlevelchange;
+  Promise<undefined> increaseZoomLevel();
+  Promise<undefined> decreaseZoomLevel();
+  Promise<undefined> resetZoomLevel();
+  attribute EventHandler onzoomlevelchange;
 };
 
 partial interface CaptureController {
diff --git a/tests/wpt/tests/interfaces/observable.idl b/tests/wpt/tests/interfaces/observable.idl
index 5aa8332ca9b..b1ab3c3c5b1 100644
--- a/tests/wpt/tests/interfaces/observable.idl
+++ b/tests/wpt/tests/interfaces/observable.idl
@@ -74,7 +74,7 @@ interface Observable {
   //
   // takeUntil() can consume promises, iterables, async iterables, and other
   // observables.
-  Observable takeUntil(any notifier);
+  Observable takeUntil(any value);
   Observable map(Mapper mapper);
   Observable filter(Predicate predicate);
   Observable take(unsigned long long amount);
diff --git a/tests/wpt/tests/interfaces/shared-storage.idl b/tests/wpt/tests/interfaces/shared-storage.idl
index 6f38d673952..941c7414c4f 100644
--- a/tests/wpt/tests/interfaces/shared-storage.idl
+++ b/tests/wpt/tests/interfaces/shared-storage.idl
@@ -114,6 +114,7 @@ dictionary SharedStoragePrivateAggregationConfig {
   USVString aggregationCoordinatorOrigin;
   USVString contextId;
   [EnforceRange] unsigned long long filteringIdMaxBytes;
+  [EnforceRange] unsigned long long maxContributions;
 };
 
 dictionary SharedStorageRunOperationMethodOptions {
diff --git a/tests/wpt/tests/interfaces/webcodecs.idl b/tests/wpt/tests/interfaces/webcodecs.idl
index 5cd4adf9348..274ef96578a 100644
--- a/tests/wpt/tests/interfaces/webcodecs.idl
+++ b/tests/wpt/tests/interfaces/webcodecs.idl
@@ -154,6 +154,8 @@ dictionary VideoDecoderConfig {
   VideoColorSpaceInit colorSpace;
   HardwareAcceleration hardwareAcceleration = "no-preference";
   boolean optimizeForLatency;
+  double rotation = 0;
+  boolean flip = false;
 };
 
 dictionary AudioEncoderConfig {
diff --git a/tests/wpt/tests/lint.ignore b/tests/wpt/tests/lint.ignore
index 27728b07fc2..4dd0b96460c 100644
--- a/tests/wpt/tests/lint.ignore
+++ b/tests/wpt/tests/lint.ignore
@@ -655,6 +655,9 @@ AHEM SYSTEM FONT: css/css-fonts/font-size-adjust-metrics-override-ref.html
 AHEM SYSTEM FONT: css/css-fonts/line-gap-override.html
 AHEM SYSTEM FONT: css/css-fonts/parsing/font-size-adjust-computed.html
 AHEM SYSTEM FONT: css/css-fonts/size-adjust-unicode-range-system-fallback.html
+AHEM SYSTEM FONT: css/css-overflow/line-clamp/block-ellipsis-010.html
+AHEM SYSTEM FONT: css/css-overflow/line-clamp/reference/block-ellipsis-010-ref.html
+AHEM SYSTEM FONT: css/css-overflow/line-clamp/reference/block-ellipsis-010-alt-ref.html
 AHEM SYSTEM FONT: html/dom/render-blocking/remove-attr-unblocks-rendering.optional.html
 AHEM SYSTEM FONT: html/dom/render-blocking/remove-element-unblocks-rendering.optional.html
 
diff --git a/tests/wpt/tests/long-animation-frame/tentative/loaf-onmessage.html b/tests/wpt/tests/long-animation-frame/tentative/loaf-onmessage.html
new file mode 100644
index 00000000000..57987b7e444
--- /dev/null
+++ b/tests/wpt/tests/long-animation-frame/tentative/loaf-onmessage.html
@@ -0,0 +1,50 @@
+<!DOCTYPE HTML>
+<meta charset=utf-8>
+<title>Long Animation Frame Timing: basic</title>
+<meta name="timeout" content="long">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="resources/utils.js"></script>
+<script src="/common/get-host-info.sub.js"></script>
+
+<body>
+<h1>Long Animation Frame: onmessage</h1>
+<div id="log"></div>
+<script>
+
+for (const origin of ["ORIGIN", "REMOTE_ORIGIN", "HTTP_NOTSAMESITE_ORIGIN"]) {
+    test_self_event_listener(async (t, busy_wait) => {
+        const iframe = document.createElement("iframe");
+        iframe.src = `${get_host_info()[origin]}/long-animation-frame/tentative/resources/postMessage.html`;
+        const promise = new Promise(resolve => window.addEventListener("message", e => {
+            if (e.data === "NEXT") {
+                busy_wait();
+                resolve();
+            }
+        }, {once: true}));
+        document.body.append(iframe);
+        t.add_cleanup(() => iframe.remove());
+        await promise;
+    }, "DOMWindow.onmessage", `onmessage from iframe - ${origin}`);
+
+    test_self_event_listener(async (t, busy_wait) => {
+        const iframe = document.createElement("iframe");
+        iframe.src = `${get_host_info()[origin]}/long-animation-frame/tentative/resources/postMessage-from-port.html`;
+        const channel = new MessageChannel();
+        const promise = new Promise(resolve => channel.port1.addEventListener("message", e => {
+            if (e.data === "NEXT") {
+                busy_wait();
+                resolve();
+            }
+        }, {once: true}));
+        channel.port1.start();
+        iframe.onload = () => {
+            iframe.contentWindow.postMessage("START", {transfer: [channel.port2], targetOrigin: "*"});
+        }
+        document.body.append(iframe);
+        t.add_cleanup(() => iframe.remove());
+        await promise;
+    }, "MessagePort.onmessage", `onmessage from channel - ${origin}`);
+}
+</script>
+</body>
diff --git a/tests/wpt/tests/long-animation-frame/tentative/loaf-user-callback.html b/tests/wpt/tests/long-animation-frame/tentative/loaf-user-callback.html
index 29eadfd20e6..8d664fb331c 100644
--- a/tests/wpt/tests/long-animation-frame/tentative/loaf-user-callback.html
+++ b/tests/wpt/tests/long-animation-frame/tentative/loaf-user-callback.html
@@ -52,5 +52,16 @@ test_self_user_callback((t, busy_wait) =>
       {type: "navigation", buffered: true});
 }, "PerformanceObserverCallback");
 
+test_self_user_callback((t, busy_wait) =>
+    requestIdleCallback(() => busy_wait()), "IdleRequestCallback");
+
+test_self_user_callback((t, busy_wait) => {
+    requestIdleCallback(() => busy_wait(), {timeout: 10});
+    t.step_timeout(() => {
+        const deadline = performance.now() + 15;
+        while (performance.now() < deadline) {}
+    });
+}, "IdleRequestCallback",
+    "requestIdleCallback with timeout");
 </script>
 </body>
diff --git a/tests/wpt/tests/long-animation-frame/tentative/resources/postMessage-from-port.html b/tests/wpt/tests/long-animation-frame/tentative/resources/postMessage-from-port.html
new file mode 100644
index 00000000000..a016ee0c4b0
--- /dev/null
+++ b/tests/wpt/tests/long-animation-frame/tentative/resources/postMessage-from-port.html
@@ -0,0 +1,10 @@
+<!DOCTYPE html>
+<script>
+window.onload = () => {
+    addEventListener("message", e => {
+        if (e.data === "START") {
+            e.ports[0].postMessage("NEXT");
+        }
+    });
+}
+</script>
\ No newline at end of file
diff --git a/tests/wpt/tests/long-animation-frame/tentative/resources/postMessage.html b/tests/wpt/tests/long-animation-frame/tentative/resources/postMessage.html
new file mode 100644
index 00000000000..edb8d42ae7e
--- /dev/null
+++ b/tests/wpt/tests/long-animation-frame/tentative/resources/postMessage.html
@@ -0,0 +1,6 @@
+<!DOCTYPE html>
+<script>
+window.onload = () => {
+    window.parent.postMessage("NEXT", "*");
+}
+</script>
\ No newline at end of file
diff --git a/tests/wpt/tests/long-animation-frame/tentative/resources/utils.js b/tests/wpt/tests/long-animation-frame/tentative/resources/utils.js
index 66b3cf40ba2..6e94c1c14a3 100644
--- a/tests/wpt/tests/long-animation-frame/tentative/resources/utils.js
+++ b/tests/wpt/tests/long-animation-frame/tentative/resources/utils.js
@@ -149,8 +149,8 @@ function test_self_user_callback(cb, invoker, label) {
     test_loaf_script(cb, invoker, "user-callback", label);
 }
 
-function test_self_event_listener(cb, invoker) {
-  test_loaf_script(cb, invoker, "event-listener");
+function test_self_event_listener(cb, invoker, label) {
+  test_loaf_script(cb, invoker, "event-listener", label);
 }
 
 function test_promise_script(cb, resolve_or_reject, invoker, label) {
diff --git a/tests/wpt/tests/mediasession/setactionhandler.html b/tests/wpt/tests/mediasession/setactionhandler.html
index 3836b52c4b9..4f14b891f47 100644
--- a/tests/wpt/tests/mediasession/setactionhandler.html
+++ b/tests/wpt/tests/mediasession/setactionhandler.html
@@ -1,5 +1,6 @@
 <!DOCTYPE html>
 <title>Test that setting MediaSession event handler should notify the service</title>
+<link rel="help" href="https://w3c.github.io/mediasession/#media-session-action" />
 <script src=/resources/testharness.js></script>
 <script src="/resources/testharnessreport.js"></script>
 <script>
@@ -16,10 +17,12 @@
   "skipad",
   "togglemicrophone",
   "togglecamera",
+  "togglescreenshare",
   "hangup",
   "previousslide",
   "nextslide",
   "enterpictureinpicture",
+  "voiceactivity"
 ].forEach((action) =>
   test((t) => {
     window.navigator.mediaSession.setActionHandler(action, null);
diff --git a/tests/wpt/tests/navigation-api/navigate-event/event-constructor.html b/tests/wpt/tests/navigation-api/navigate-event/event-constructor.html
index 89ac934020e..863681ced73 100644
--- a/tests/wpt/tests/navigation-api/navigate-event/event-constructor.html
+++ b/tests/wpt/tests/navigation-api/navigate-event/event-constructor.html
@@ -78,8 +78,7 @@ async_test(t => {
     assert_equals(event.downloadRequest, downloadRequest);
     assert_equals(event.info, info);
     assert_equals(event.hasUAVisualTransition, hasUAVisualTransition);
-    // NavigateEvent sourceElement is still in development, so test whether it is available.
-    if ("sourceElement" in e) assert_equals(event.sourceElement, sourceElement);
+    assert_equals(event.sourceElement, sourceElement);
   });
   history.pushState(2, null, "#2");
 }, "all properties are reflected back");
@@ -99,8 +98,7 @@ async_test(t => {
     assert_equals(event.formData, null);
     assert_equals(event.downloadRequest, null);
     assert_equals(event.info, undefined);
-    // NavigateEvent sourceElement is still in development, so test whether it is available.
-    if ("sourceElement" in e) assert_equals(event.sourceElement, null);
+    assert_equals(event.sourceElement, null);
   });
   history.pushState(3, null, "#3");
 }, "defaults are as expected");
diff --git a/tests/wpt/tests/navigation-api/navigate-event/navigate-anchor-cross-origin.html b/tests/wpt/tests/navigation-api/navigate-event/navigate-anchor-cross-origin.html
index a69b78196ff..62e5adb20ae 100644
--- a/tests/wpt/tests/navigation-api/navigate-event/navigate-anchor-cross-origin.html
+++ b/tests/wpt/tests/navigation-api/navigate-event/navigate-anchor-cross-origin.html
@@ -17,8 +17,7 @@ async_test(t => {
     assert_equals(e.destination.key, "");
     assert_equals(e.destination.id, "");
     assert_equals(e.destination.index, -1);
-    // NavigateEvent sourceElement is still in development, so test whether it is available.
-    if ("sourceElement" in e) assert_equals(e.sourceElement, document.getElementById("a"));
+    assert_equals(e.sourceElement, document.getElementById("a"));
     e.preventDefault();
   });
   a.click();
diff --git a/tests/wpt/tests/navigation-api/navigate-event/navigate-anchor-download-userInitiated.html b/tests/wpt/tests/navigation-api/navigate-event/navigate-anchor-download-userInitiated.html
index 17109a2ae82..69181425292 100644
--- a/tests/wpt/tests/navigation-api/navigate-event/navigate-anchor-download-userInitiated.html
+++ b/tests/wpt/tests/navigation-api/navigate-event/navigate-anchor-download-userInitiated.html
@@ -21,8 +21,7 @@ async_test(t => {
     assert_equals(e.destination.key, "");
     assert_equals(e.destination.id, "");
     assert_equals(e.destination.index, -1);
-    // NavigateEvent sourceElement is still in development, so test whether it is available.
-    if ("sourceElement" in e) assert_equals(e.sourceElement, document.getElementById("a"));
+    assert_equals(e.sourceElement, document.getElementById("a"));
     e.preventDefault();
     t.step_timeout(t.step_func_done(() => assert_equals(location.hash, "")), 0);
   });
diff --git a/tests/wpt/tests/navigation-api/navigate-event/navigate-anchor-download.html b/tests/wpt/tests/navigation-api/navigate-event/navigate-anchor-download.html
index fbeeb69b956..d04245ec253 100644
--- a/tests/wpt/tests/navigation-api/navigate-event/navigate-anchor-download.html
+++ b/tests/wpt/tests/navigation-api/navigate-event/navigate-anchor-download.html
@@ -25,8 +25,7 @@ for (const [tag, download_attr] of tests) {
       assert_equals(e.destination.key, "");
       assert_equals(e.destination.id, "");
       assert_equals(e.destination.index, -1);
-      // NavigateEvent sourceElement is still in development, so test whether it is available.
-      if ("sourceElement" in e) assert_equals(e.sourceElement, a);
+      assert_equals(e.sourceElement, a);
       e.preventDefault();
     });
     a.click();
diff --git a/tests/wpt/tests/navigation-api/navigate-event/navigate-anchor-fragment.html b/tests/wpt/tests/navigation-api/navigate-event/navigate-anchor-fragment.html
index 69400c3d2f3..6443ccecd1d 100644
--- a/tests/wpt/tests/navigation-api/navigate-event/navigate-anchor-fragment.html
+++ b/tests/wpt/tests/navigation-api/navigate-event/navigate-anchor-fragment.html
@@ -17,8 +17,7 @@ async_test(t => {
     assert_equals(e.destination.key, "");
     assert_equals(e.destination.id, "");
     assert_equals(e.destination.index, -1);
-    // NavigateEvent sourceElement is still in development, so test whether it is available.
-    if ("sourceElement" in e) assert_equals(e.sourceElement, document.getElementById("a"));
+    assert_equals(e.sourceElement, document.getElementById("a"));
     e.preventDefault();
     t.step_timeout(t.step_func_done(() => assert_equals(location.hash, "")), 0);
   });
diff --git a/tests/wpt/tests/navigation-api/navigate-event/navigate-anchor-same-origin-cross-document.html b/tests/wpt/tests/navigation-api/navigate-event/navigate-anchor-same-origin-cross-document.html
index 084993540a1..5a6dce7ec8b 100644
--- a/tests/wpt/tests/navigation-api/navigate-event/navigate-anchor-same-origin-cross-document.html
+++ b/tests/wpt/tests/navigation-api/navigate-event/navigate-anchor-same-origin-cross-document.html
@@ -18,8 +18,7 @@ async_test(t => {
     assert_equals(e.destination.key, "");
     assert_equals(e.destination.id, "");
     assert_equals(e.destination.index, -1);
-    // NavigateEvent sourceElement is still in development, so test whether it is available.
-    if ("sourceElement" in e) assert_equals(e.sourceElement, document.getElementById("a"));
+    assert_equals(e.sourceElement, document.getElementById("a"));
     e.preventDefault();
   });
   a.click();
diff --git a/tests/wpt/tests/navigation-api/navigate-event/navigate-anchor-userInitiated.html b/tests/wpt/tests/navigation-api/navigate-event/navigate-anchor-userInitiated.html
index 686d7ad6ee3..bb76e7a3fbe 100644
--- a/tests/wpt/tests/navigation-api/navigate-event/navigate-anchor-userInitiated.html
+++ b/tests/wpt/tests/navigation-api/navigate-event/navigate-anchor-userInitiated.html
@@ -20,8 +20,7 @@ async_test(t => {
     assert_equals(e.destination.key, "");
     assert_equals(e.destination.id, "");
     assert_equals(e.destination.index, -1);
-    // NavigateEvent sourceElement is still in development, so test whether it is available.
-    if ("sourceElement" in e) assert_equals(e.sourceElement, document.getElementById("a"));
+    assert_equals(e.sourceElement, document.getElementById("a"));
     e.preventDefault();
     t.step_timeout(t.step_func_done(() => assert_equals(location.hash, "")), 0);
   });
diff --git a/tests/wpt/tests/navigation-api/navigate-event/navigate-anchor-with-target.html b/tests/wpt/tests/navigation-api/navigate-event/navigate-anchor-with-target.html
index de74239b3be..e4b897d82f3 100644
--- a/tests/wpt/tests/navigation-api/navigate-event/navigate-anchor-with-target.html
+++ b/tests/wpt/tests/navigation-api/navigate-event/navigate-anchor-with-target.html
@@ -20,11 +20,10 @@ async_test(t => {
       assert_equals(new URL(e.destination.url).pathname,
                     "/navigation-api/navigate-event/foo.html");
       assert_false(e.destination.sameDocument);
-      assert_equals(e.destination.key, "");
-      assert_equals(e.destination.id, "");
+    assert_equals(e.destination.key, "");
+    assert_equals(e.destination.id, "");
       assert_equals(e.destination.index, -1);
-      // NavigateEvent sourceElement is still in development, so test whether it is available.
-      if ("sourceElement" in e) assert_equals(e.sourceElement, null);
+      assert_equals(e.sourceElement, null);
       e.preventDefault();
     });
     a.click();
diff --git a/tests/wpt/tests/navigation-api/navigate-event/navigate-destination-getState-back-forward.html b/tests/wpt/tests/navigation-api/navigate-event/navigate-destination-getState-back-forward.html
index b206981821b..869fc164815 100644
--- a/tests/wpt/tests/navigation-api/navigate-event/navigate-destination-getState-back-forward.html
+++ b/tests/wpt/tests/navigation-api/navigate-event/navigate-destination-getState-back-forward.html
@@ -19,8 +19,7 @@ async_test(t => {
       assert_equals(e.destination.key, "");
       assert_equals(e.destination.id, "");
       assert_equals(e.destination.index, -1);
-      // NavigateEvent sourceElement is still in development, so test whether it is available.
-      if ("sourceElement" in e) assert_equals(e.sourceElement, null);
+      assert_equals(e.sourceElement, null);
     });
     navigation.back();
   }), 0);
diff --git a/tests/wpt/tests/navigation-api/navigate-event/navigate-destination-getState-navigate.html b/tests/wpt/tests/navigation-api/navigate-event/navigate-destination-getState-navigate.html
index 1e622f99117..d19a1685145 100644
--- a/tests/wpt/tests/navigation-api/navigate-event/navigate-destination-getState-navigate.html
+++ b/tests/wpt/tests/navigation-api/navigate-event/navigate-destination-getState-navigate.html
@@ -16,8 +16,7 @@ async_test(t => {
       assert_equals(e.destination.key, "");
       assert_equals(e.destination.id, "");
       assert_equals(e.destination.index, -1);
-      // NavigateEvent sourceElement is still in development, so test whether it is available.
-      if ("sourceElement" in e) assert_equals(e.sourceElement, null);
+      assert_equals(e.sourceElement, null);
     });
     navigation.navigate("#foo", { state: navState });
   }, 0);
diff --git a/tests/wpt/tests/navigation-api/navigate-event/navigate-destination-getState-reload.html b/tests/wpt/tests/navigation-api/navigate-event/navigate-destination-getState-reload.html
index be33b8120da..ac6528ce7ef 100644
--- a/tests/wpt/tests/navigation-api/navigate-event/navigate-destination-getState-reload.html
+++ b/tests/wpt/tests/navigation-api/navigate-event/navigate-destination-getState-reload.html
@@ -16,8 +16,7 @@ async_test(t => {
       assert_equals(e.destination.key, "");
       assert_equals(e.destination.id, "");
       assert_equals(e.destination.index, -1);
-      // NavigateEvent sourceElement is still in development, so test whether it is available.
-      if ("sourceElement" in e) assert_equals(e.sourceElement, null);
+      assert_equals(e.sourceElement, null);
       e.intercept();
     });
     navigation.updateCurrentEntry({ state: navState });
diff --git a/tests/wpt/tests/navigation-api/navigate-event/navigate-form-get.html b/tests/wpt/tests/navigation-api/navigate-event/navigate-form-get.html
index 59661a1caf7..7a71a1c3050 100644
--- a/tests/wpt/tests/navigation-api/navigate-event/navigate-form-get.html
+++ b/tests/wpt/tests/navigation-api/navigate-event/navigate-form-get.html
@@ -21,8 +21,7 @@ async_test(t => {
 
     // Because it's a GET, not a POST
     assert_equals(e.formData, null);
-    // NavigateEvent sourceElement is still in development, so test whether it is available.
-    if ("sourceElement" in e) assert_equals(e.sourceElement, form);
+    assert_equals(e.sourceElement, form);
   });
   window.onload = t.step_func(() => form.submit());
 }, "<form> submission with GET method fires navigate event but with formData null");
diff --git a/tests/wpt/tests/navigation-api/navigate-event/navigate-form-reload.html b/tests/wpt/tests/navigation-api/navigate-event/navigate-form-reload.html
index cdd3ade4ff2..21716905372 100644
--- a/tests/wpt/tests/navigation-api/navigate-event/navigate-form-reload.html
+++ b/tests/wpt/tests/navigation-api/navigate-event/navigate-form-reload.html
@@ -12,8 +12,7 @@ async_test(t => {
     iframe.contentWindow.navigation.onnavigate = t.step_func(e => {
       assert_equals(e.navigationType, "push");
       assert_not_equals(e.formData, null);
-      // NavigateEvent sourceElement is still in development, so test whether it is available.
-      if ("sourceElement" in e) assert_equals(e.sourceElement, null);
+      assert_equals(e.sourceElement, null);
 
       iframe.onload = t.step_func(() => {
         iframe.contentWindow.navigation.onnavigate = t.step_func_done(e => {
diff --git a/tests/wpt/tests/navigation-api/navigate-event/navigate-form-traverse.html b/tests/wpt/tests/navigation-api/navigate-event/navigate-form-traverse.html
index 72b8dc36acb..b9665c80566 100644
--- a/tests/wpt/tests/navigation-api/navigate-event/navigate-form-traverse.html
+++ b/tests/wpt/tests/navigation-api/navigate-event/navigate-form-traverse.html
@@ -12,8 +12,7 @@ async_test(t => {
     iframe.contentWindow.navigation.onnavigate = t.step_func(e => {
       assert_equals(e.navigationType, "push");
       assert_not_equals(e.formData, null);
-      // NavigateEvent sourceElement is still in development, so test whether it is available.
-      if ("sourceElement" in e) assert_equals(e.sourceElement, null);
+      assert_equals(e.sourceElement, null);
 
       iframe.onload = t.step_func(() => {
         // Avoid the replace behavior that occurs if you navigate during the load handler
diff --git a/tests/wpt/tests/navigation-api/navigate-event/navigate-form-userInitiated.html b/tests/wpt/tests/navigation-api/navigate-event/navigate-form-userInitiated.html
index 079f546771f..246e028a0db 100644
--- a/tests/wpt/tests/navigation-api/navigate-event/navigate-form-userInitiated.html
+++ b/tests/wpt/tests/navigation-api/navigate-event/navigate-form-userInitiated.html
@@ -24,8 +24,7 @@ async_test(t => {
     assert_equals(e.destination.id, "");
     assert_equals(e.destination.index, -1);
     assert_not_equals(e.formData, null);
-    // NavigateEvent sourceElement is still in development, so test whether it is available.
-    if ("sourceElement" in e) assert_equals(e.sourceElement, submit);
+    assert_equals(e.sourceElement, submit);
   });
   window.onload = t.step_func(() => test_driver.click(submit));
 }, "<form> submission fires navigate event");
diff --git a/tests/wpt/tests/navigation-api/navigate-event/navigate-form-with-target.html b/tests/wpt/tests/navigation-api/navigate-event/navigate-form-with-target.html
index 07418366a76..4b1a8ce9d3a 100644
--- a/tests/wpt/tests/navigation-api/navigate-event/navigate-form-with-target.html
+++ b/tests/wpt/tests/navigation-api/navigate-event/navigate-form-with-target.html
@@ -22,8 +22,7 @@ async_test(t => {
       assert_equals(e.destination.id, "");
       assert_equals(e.destination.index, -1);
       assert_not_equals(e.formData, null);
-      // NavigateEvent sourceElement is still in development, so test whether it is available.
-      if ("sourceElement" in e) assert_equals(e.sourceElement, null);
+      assert_equals(e.sourceElement, null);
     });
     form.submit();
   });
diff --git a/tests/wpt/tests/navigation-api/navigate-event/navigate-form.html b/tests/wpt/tests/navigation-api/navigate-event/navigate-form.html
index 8cea889bec1..653ef3b8eba 100644
--- a/tests/wpt/tests/navigation-api/navigate-event/navigate-form.html
+++ b/tests/wpt/tests/navigation-api/navigate-event/navigate-form.html
@@ -19,8 +19,7 @@ async_test(t => {
     assert_equals(e.destination.id, "");
     assert_equals(e.destination.index, -1);
     assert_not_equals(e.formData, null);
-    // NavigateEvent sourceElement is still in development, so test whether it is available.
-    if ("sourceElement" in e) assert_equals(e.sourceElement, form);
+    assert_equals(e.sourceElement, form);
   });
   window.onload = t.step_func(() => form.submit());
 }, "<form> submission fires navigate event");
diff --git a/tests/wpt/tests/navigation-api/navigate-event/navigate-history-back-after-fragment.html b/tests/wpt/tests/navigation-api/navigate-event/navigate-history-back-after-fragment.html
index 4529fe25ac3..9da4ddcd507 100644
--- a/tests/wpt/tests/navigation-api/navigate-event/navigate-history-back-after-fragment.html
+++ b/tests/wpt/tests/navigation-api/navigate-event/navigate-history-back-after-fragment.html
@@ -24,8 +24,7 @@ async_test(t => {
       assert_equals(e.destination.id, target_id);
         assert_equals(e.destination.index, start_index);
       assert_equals(e.formData, null);
-      // NavigateEvent sourceElement is still in development, so test whether it is available.
-      if ("sourceElement" in e) assert_equals(e.sourceElement, null);
+      assert_equals(e.sourceElement, null);
     });
 
     history.back();
diff --git a/tests/wpt/tests/navigation-api/navigate-event/navigate-history-back-after-pushState.html b/tests/wpt/tests/navigation-api/navigate-event/navigate-history-back-after-pushState.html
index 06c3b89bbcf..fdee41a3121 100644
--- a/tests/wpt/tests/navigation-api/navigate-event/navigate-history-back-after-pushState.html
+++ b/tests/wpt/tests/navigation-api/navigate-event/navigate-history-back-after-pushState.html
@@ -24,8 +24,7 @@ async_test(t => {
       assert_equals(e.destination.id, target_id);
       assert_equals(e.destination.index, start_index);
       assert_equals(e.formData, null);
-      // NavigateEvent sourceElement is still in development, so test whether it is available.
-      if ("sourceElement" in e) assert_equals(e.sourceElement, null);
+      assert_equals(e.sourceElement, null);
     });
 
     history.back();
diff --git a/tests/wpt/tests/navigation-api/navigate-event/navigate-history-back-cross-document.html b/tests/wpt/tests/navigation-api/navigate-event/navigate-history-back-cross-document.html
index a34b20a5e53..29c626a5221 100644
--- a/tests/wpt/tests/navigation-api/navigate-event/navigate-history-back-cross-document.html
+++ b/tests/wpt/tests/navigation-api/navigate-event/navigate-history-back-cross-document.html
@@ -23,8 +23,7 @@ async_test(t => {
         assert_equals(e.destination.index, 0);
         assert_equals(e.formData, null);
         assert_equals(e.info, undefined);
-        // NavigateEvent sourceElement is still in development, so test whether it is available.
-        if ("sourceElement" in e) assert_equals(e.sourceElement, null);
+        assert_equals(e.sourceElement, null);
       });
       assert_true(i.contentWindow.navigation.canGoBack);
       i.contentWindow.history.back();
diff --git a/tests/wpt/tests/navigation-api/navigate-event/navigate-history-go-0.html b/tests/wpt/tests/navigation-api/navigate-event/navigate-history-go-0.html
index cd716bfafb1..5508928e198 100644
--- a/tests/wpt/tests/navigation-api/navigate-event/navigate-history-go-0.html
+++ b/tests/wpt/tests/navigation-api/navigate-event/navigate-history-go-0.html
@@ -18,8 +18,7 @@ async_test(t => {
       assert_equals(e.destination.id, "");
       assert_equals(e.destination.index, -1);
       assert_equals(e.formData, null);
-      // NavigateEvent sourceElement is still in development, so test whether it is available.
-      if ("sourceElement" in e) assert_equals(e.sourceElement, null);
+      assert_equals(e.sourceElement, null);
       e.preventDefault();
     });
 
diff --git a/tests/wpt/tests/navigation-api/navigate-event/navigate-history-pushState.html b/tests/wpt/tests/navigation-api/navigate-event/navigate-history-pushState.html
index f89288b6edf..5079b210781 100644
--- a/tests/wpt/tests/navigation-api/navigate-event/navigate-history-pushState.html
+++ b/tests/wpt/tests/navigation-api/navigate-event/navigate-history-pushState.html
@@ -17,8 +17,7 @@ async_test(t => {
     assert_equals(e.destination.id, "");
     assert_equals(e.destination.index, -1);
     assert_equals(e.formData, null);
-    // NavigateEvent sourceElement is still in development, so test whether it is available.
-    if ("sourceElement" in e) assert_equals(e.sourceElement, null);
+    assert_equals(e.sourceElement, null);
     e.preventDefault();
     t.step_timeout(t.step_func_done(() => {
       assert_equals(location.hash, "");
diff --git a/tests/wpt/tests/navigation-api/navigate-event/navigate-history-replaceState.html b/tests/wpt/tests/navigation-api/navigate-event/navigate-history-replaceState.html
index d18feb2bc1d..444116a6324 100644
--- a/tests/wpt/tests/navigation-api/navigate-event/navigate-history-replaceState.html
+++ b/tests/wpt/tests/navigation-api/navigate-event/navigate-history-replaceState.html
@@ -17,8 +17,7 @@ async_test(t => {
     assert_equals(e.destination.id, "");
     assert_equals(e.destination.index, -1);
     assert_equals(e.formData, null);
-    // NavigateEvent sourceElement is still in development, so test whether it is available.
-    if ("sourceElement" in e) assert_equals(e.sourceElement, null);
+    assert_equals(e.sourceElement, null);
     e.preventDefault();
     t.step_timeout(t.step_func_done(() => {
       assert_equals(location.hash, "");
diff --git a/tests/wpt/tests/navigation-api/navigate-event/navigate-iframe-location.html b/tests/wpt/tests/navigation-api/navigate-event/navigate-iframe-location.html
index c00a6e010db..1bd79188231 100644
--- a/tests/wpt/tests/navigation-api/navigate-event/navigate-iframe-location.html
+++ b/tests/wpt/tests/navigation-api/navigate-event/navigate-iframe-location.html
@@ -21,8 +21,7 @@ async_test(t => {
       assert_equals(e.destination.id, "");
       assert_equals(e.destination.index, -1);
       assert_equals(e.formData, null);
-      // NavigateEvent sourceElement is still in development, so test whether it is available.
-      if ("sourceElement" in e) assert_equals(e.sourceElement, null);
+      assert_equals(e.sourceElement, null);
       e.preventDefault();
       t.step_timeout(t.step_func_done(() => assert_equals(location.hash, "")), 0);
     });
diff --git a/tests/wpt/tests/navigation-api/navigate-event/navigate-location.html b/tests/wpt/tests/navigation-api/navigate-event/navigate-location.html
index b1ce204a626..a0ed4dc0aac 100644
--- a/tests/wpt/tests/navigation-api/navigate-event/navigate-location.html
+++ b/tests/wpt/tests/navigation-api/navigate-event/navigate-location.html
@@ -17,8 +17,7 @@ async_test(t => {
     assert_equals(e.destination.id, "");
     assert_equals(e.destination.index, -1);
     assert_equals(e.formData, null);
-    // NavigateEvent sourceElement is still in development, so test whether it is available.
-    if ("sourceElement" in e) assert_equals(e.sourceElement, null);
+    assert_equals(e.sourceElement, null);
   });
   location.href = "#1";
 }, "location API fires navigate event");
diff --git a/tests/wpt/tests/navigation-api/navigate-event/navigate-meta-refresh.html b/tests/wpt/tests/navigation-api/navigate-event/navigate-meta-refresh.html
index f64484c3055..d4d5b1c8e13 100644
--- a/tests/wpt/tests/navigation-api/navigate-event/navigate-meta-refresh.html
+++ b/tests/wpt/tests/navigation-api/navigate-event/navigate-meta-refresh.html
@@ -20,8 +20,7 @@ async_test(t => {
       assert_equals(e.destination.id, "");
       assert_equals(e.destination.index, -1);
       assert_equals(e.formData, null);
-      // NavigateEvent sourceElement is still in development, so test whether it is available.
-      if ("sourceElement" in e) assert_equals(e.sourceElement, null);
+      assert_equals(e.sourceElement, null);
       e.preventDefault();
     });
   });
diff --git a/tests/wpt/tests/navigation-api/navigate-event/navigate-navigation-back-cross-document.html b/tests/wpt/tests/navigation-api/navigate-event/navigate-navigation-back-cross-document.html
index de87fbbb800..084051539b8 100644
--- a/tests/wpt/tests/navigation-api/navigate-event/navigate-navigation-back-cross-document.html
+++ b/tests/wpt/tests/navigation-api/navigate-event/navigate-navigation-back-cross-document.html
@@ -25,8 +25,7 @@ async_test(t => {
         assert_equals(e.destination.index, 0);
         assert_equals(e.formData, null);
         assert_equals(e.info, "hi");
-        // NavigateEvent sourceElement is still in development, so test whether it is available.
-        if ("sourceElement" in e) assert_equals(e.sourceElement, null);
+        assert_equals(e.sourceElement, null);
       });
       i.contentWindow.onbeforeunload = () => beforeunload_called = true;
       assert_true(i.contentWindow.navigation.canGoBack);
diff --git a/tests/wpt/tests/navigation-api/navigate-event/navigate-navigation-back-same-document-in-iframe.html b/tests/wpt/tests/navigation-api/navigate-event/navigate-navigation-back-same-document-in-iframe.html
index 3d810d2f1de..42c694e2905 100644
--- a/tests/wpt/tests/navigation-api/navigate-event/navigate-navigation-back-same-document-in-iframe.html
+++ b/tests/wpt/tests/navigation-api/navigate-event/navigate-navigation-back-same-document-in-iframe.html
@@ -27,8 +27,7 @@ promise_test(async t => {
     assert_equals(e.destination.index, 0);
     assert_equals(e.formData, null);
     assert_equals(e.info, "hi");
-    // NavigateEvent sourceElement is still in development, so test whether it is available.
-    if ("sourceElement" in e) assert_equals(e.sourceElement, null);
+    assert_equals(e.sourceElement, null);
   }
   await i.contentWindow.navigation.back({ info: "hi" }).finished;
 }, "navigate event for navigation.back() - same-document in an iframe");
diff --git a/tests/wpt/tests/navigation-api/navigate-event/navigate-navigation-back-same-document.html b/tests/wpt/tests/navigation-api/navigate-event/navigate-navigation-back-same-document.html
index 0f2faff7d7b..b08bbfcbf11 100644
--- a/tests/wpt/tests/navigation-api/navigate-event/navigate-navigation-back-same-document.html
+++ b/tests/wpt/tests/navigation-api/navigate-event/navigate-navigation-back-same-document.html
@@ -25,8 +25,7 @@ async_test(t => {
         assert_equals(e.formData, null);
         assert_equals(e.info, "hi");
         assert_not_equals(e.hasUAVisualTransition, undefined);
-        // NavigateEvent sourceElement is still in development, so test whether it is available.
-        if ("sourceElement" in e) assert_equals(e.sourceElement, null);
+        assert_equals(e.sourceElement, null);
       });
       assert_true(navigation.canGoBack);
       navigation.back({ info: "hi" });
diff --git a/tests/wpt/tests/navigation-api/navigate-event/navigate-navigation-navigate.html b/tests/wpt/tests/navigation-api/navigate-event/navigate-navigation-navigate.html
index 5dd1892cc00..c56af1b40df 100644
--- a/tests/wpt/tests/navigation-api/navigate-event/navigate-navigation-navigate.html
+++ b/tests/wpt/tests/navigation-api/navigate-event/navigate-navigation-navigate.html
@@ -16,8 +16,7 @@ async_test(t => {
     assert_equals(e.destination.id, "");
     assert_equals(e.destination.index, -1);
     assert_equals(e.formData, null);
-    // NavigateEvent sourceElement is still in development, so test whether it is available.
-    if ("sourceElement" in e) assert_equals(e.sourceElement, null);
+    assert_equals(e.sourceElement, null);
   });
   navigation.navigate("#foo");
 }, "navigate event for navigation.navigate()");
diff --git a/tests/wpt/tests/navigation-api/navigate-event/navigate-svg-anchor-fragment.html b/tests/wpt/tests/navigation-api/navigate-event/navigate-svg-anchor-fragment.html
index 647496fd5c6..c6d210cccb1 100644
--- a/tests/wpt/tests/navigation-api/navigate-event/navigate-svg-anchor-fragment.html
+++ b/tests/wpt/tests/navigation-api/navigate-event/navigate-svg-anchor-fragment.html
@@ -17,8 +17,7 @@ async_test(t => {
     assert_equals(e.destination.key, "");
     assert_equals(e.destination.id, "");
     assert_equals(e.destination.index, -1);
-    // NavigateEvent sourceElement is still in development, so test whether it is available.
-    if ("sourceElement" in e) assert_equals(e.sourceElement, document.getElementById("a"));
+    assert_equals(e.sourceElement, document.getElementById("a"));
     e.preventDefault();
     t.step_timeout(t.step_func_done(() => assert_equals(location.hash, "")), 0);
   });
diff --git a/tests/wpt/tests/navigation-api/navigate-event/navigate-to-srcdoc.html b/tests/wpt/tests/navigation-api/navigate-event/navigate-to-srcdoc.html
index bb598d8b902..ea5c3f92168 100644
--- a/tests/wpt/tests/navigation-api/navigate-event/navigate-to-srcdoc.html
+++ b/tests/wpt/tests/navigation-api/navigate-event/navigate-to-srcdoc.html
@@ -21,8 +21,7 @@ async_test(t => {
       assert_equals(e.destination.id, "");
       assert_equals(e.destination.index, -1);
       assert_equals(e.formData, null);
-      // NavigateEvent sourceElement is still in development, so test whether it is available.
-      if ("sourceElement" in e) assert_equals(e.sourceElement, null);
+      assert_equals(e.sourceElement, null);
       e.preventDefault();
 
       // Make sure it doesn't navigate anyway.
diff --git a/tests/wpt/tests/navigation-api/navigate-event/navigate-window-open-self.html b/tests/wpt/tests/navigation-api/navigate-event/navigate-window-open-self.html
index 1ef65ed82ba..4e569b6d548 100644
--- a/tests/wpt/tests/navigation-api/navigate-event/navigate-window-open-self.html
+++ b/tests/wpt/tests/navigation-api/navigate-event/navigate-window-open-self.html
@@ -16,8 +16,7 @@ async_test(t => {
     assert_equals(e.destination.id, "");
     assert_equals(e.destination.index, -1);
     assert_equals(e.formData, null);
-    // NavigateEvent sourceElement is still in development, so test whether it is available.
-    if ("sourceElement" in e) assert_equals(e.sourceElement, null);
+    assert_equals(e.sourceElement, null);
     e.preventDefault();
   });
   window.onload = t.step_func(() => window.open("#1", "_self"));
diff --git a/tests/wpt/tests/navigation-api/navigate-event/navigate-window-open.html b/tests/wpt/tests/navigation-api/navigate-event/navigate-window-open.html
index 13cdefb5d3b..42828308d77 100644
--- a/tests/wpt/tests/navigation-api/navigate-event/navigate-window-open.html
+++ b/tests/wpt/tests/navigation-api/navigate-event/navigate-window-open.html
@@ -21,8 +21,7 @@ async_test(t => {
       assert_equals(e.destination.id, "");
       assert_equals(e.destination.index, -1);
       assert_equals(e.formData, null);
-      // NavigateEvent sourceElement is still in development, so test whether it is available.
-      if ("sourceElement" in e) assert_equals(e.sourceElement, null);
+      assert_equals(e.sourceElement, null);
       e.preventDefault();
     });
 
diff --git a/tests/wpt/tests/pointerevents/pointermove_after_pointerover_target_removed.tentative.html b/tests/wpt/tests/pointerevents/pointermove_after_pointerover_target_removed.tentative.html
new file mode 100644
index 00000000000..b724d3faf3f
--- /dev/null
+++ b/tests/wpt/tests/pointerevents/pointermove_after_pointerover_target_removed.tentative.html
@@ -0,0 +1,121 @@
+<!doctype html>
+<html>
+<head>
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale=1.0">
+<title>`pointermove` (maybe) should not be fired when the last `pointerover` target is removed</title>
+<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>
+"use strict";
+
+/**
+ * When `pointerover` event target is removed, `pointermove` event is not fired
+ * on Chrome 134.  Until the behavior is well defined, we should keep the
+ * compatibility with Chrome.
+ */
+
+addEventListener("DOMContentLoaded", () => {
+  const grandparentDiv = document.getElementById("grandparent");
+  let parentDiv = document.getElementById("parent");
+  let childDiv = document.getElementById("child");
+
+  promise_test(async () => {
+    const childRect = childDiv.getBoundingClientRect();
+    let pointerMoveTarget;
+    childDiv.addEventListener("pointerover", () => {
+      childDiv.remove();
+      grandparentDiv.addEventListener("pointermove", event => {
+        pointerMoveTarget = event.target;
+      }, {once: true});
+    }, {once: true});
+    await new test_driver.Actions()
+      .pointerMove(1, 1, {})
+      // pointermove will be fired after pointerover removes the child.
+      .pointerMove(childRect.x + childRect.width / 2, childRect.y + childRect.height / 2, {})
+      .send();
+    assert_equals(pointerMoveTarget, undefined);
+    await new test_driver.Actions()
+      .pointerMove(1, 1, {})
+      .send();
+    parentDiv.appendChild(childDiv);
+  }, `"pointermove" should not be fired when the preceding "pointerover" caused removing its target`);
+
+  promise_test(async () => {
+    const childRect = childDiv.getBoundingClientRect();
+    let pointerMoveTarget;
+    childDiv.addEventListener("pointerover", () => {
+      childDiv.outerHTML = childDiv.outerHTML;
+      childDiv = parentDiv.querySelector("div");
+      grandparentDiv.addEventListener("pointermove", event => {
+        pointerMoveTarget = event.target;
+      }, {once: true});
+    }, {once: true});
+    await new test_driver.Actions()
+      .pointerMove(1, 1, {})
+      // pointermove will be fired after pointerover replaces the child.
+      .pointerMove(childRect.x + childRect.width / 2, childRect.y + childRect.height / 2, {})
+      .send();
+    assert_equals(pointerMoveTarget, undefined);
+    await new test_driver.Actions()
+      .pointerMove(1, 1, {})
+      .send();
+  }, `"pointermove" should not be fired when the preceding "pointerover" caused replacing its target`);
+
+  promise_test(async () => {
+    const childRect = childDiv.getBoundingClientRect();
+    let pointerMoveTarget;
+    childDiv.addEventListener("pointerover", () => {
+      parentDiv.remove();
+      grandparentDiv.addEventListener("pointermove", event => {
+        pointerMoveTarget = event.target;
+      }, {once: true});
+    }, {once: true});
+    await new test_driver.Actions()
+      .pointerMove(1, 1, {})
+      // pointermove will be fired after pointerover removes the child.
+      .pointerMove(childRect.x + childRect.width / 2, childRect.y + childRect.height / 2, {})
+      .send();
+    assert_equals(pointerMoveTarget, undefined);
+    await new test_driver.Actions()
+      .pointerMove(1, 1, {})
+      .send();
+    grandparentDiv.appendChild(parentDiv);
+  }, `"pointermove" should not be fired when the preceding "pointerover" caused removing the parent of its target`);
+
+  promise_test(async () => {
+    const childRect = childDiv.getBoundingClientRect();
+    let pointerMoveTarget;
+    childDiv.addEventListener("pointerover", () => {
+      parentDiv.outerHTML = parentDiv.outerHTML;
+      parentDiv = grandparentDiv.querySelector("div");
+      grandparentDiv.addEventListener("pointermove", event => {
+        pointerMoveTarget = event.target;
+      }, {once: true});
+    }, {once: true});
+    await new test_driver.Actions()
+      .pointerMove(1, 1, {})
+      // pointermove will be fired after pointerover removes the child.
+      .pointerMove(childRect.x + childRect.width / 2, childRect.y + childRect.height / 2, {})
+      .send();
+    assert_equals(pointerMoveTarget, undefined);
+    await new test_driver.Actions()
+      .pointerMove(1, 1, {})
+      .send();
+  }, `"pointermove" should not be fired when the preceding "pointerover" caused replacing the parent of its target`);
+}, {once: true});
+
+</script>
+</head>
+<body style="padding-top: 32px">
+  <div id="grandparent" style="width: 32px; height: 32px;">
+    <div id="parent" style="width: 32px; height: 32px;">
+      <div id="child" style="width: 32px; height: 32px;">
+      </div>
+    </div>
+  </div>
+</body>
+</html>
diff --git a/tests/wpt/tests/service-workers/service-worker/resources/router-rules.js b/tests/wpt/tests/service-workers/service-worker/resources/router-rules.js
index 71c09e7079c..58c0e5cbbaf 100644
--- a/tests/wpt/tests/service-workers/service-worker/resources/router-rules.js
+++ b/tests/wpt/tests/service-workers/service-worker/resources/router-rules.js
@@ -53,10 +53,18 @@ const routerRules = {
   'condition-lack-of-source': [{
     condition: {requestMode: 'no-cors'},
   }],
-  'condition-invalid-request-method': [{
+  'condition-invalid-bytestring-request-method': [{
     condition: {requestMethod: String.fromCodePoint(0x3042)},
     source: 'network'
   }],
+  'condition-invalid-http-request-method': [{
+    condition: {requestMethod: '(GET|POST)'},
+    source: 'network'
+  }],
+  'condition-forbidden-request-method': [{
+    condition: {requestMethod: 'connect'},
+    source: 'network'
+  }],
   'condition-request-destination-script-network':
       [{condition: {requestDestination: 'script'}, source: 'network'}],
   'condition-or-source-network': [{
diff --git a/tests/wpt/tests/service-workers/service-worker/static-router-invalid-rules.https.html b/tests/wpt/tests/service-workers/service-worker/static-router-invalid-rules.https.html
index 05f39f2c9dc..616f85bd618 100644
--- a/tests/wpt/tests/service-workers/service-worker/static-router-invalid-rules.https.html
+++ b/tests/wpt/tests/service-workers/service-worker/static-router-invalid-rules.https.html
@@ -13,19 +13,37 @@
 <body>
 <script>
 
-const ROUTER_RULE_KEY_INVALID_REQUEST_METHOD =
-    'condition-invalid-request-method';
+const ROUTER_RULE_KEY_INVALID_BYTESTRING_REQUEST_METHOD =
+    'condition-invalid-bytestring-request-method';
+const ROUTER_RULE_KEY_INVALID_HTTP_REQUEST_METHOD =
+    'condition-invalid-http-request-method';
+const ROUTER_RULE_KEY_FORBIDDEN_REQUEST_METHOD =
+    'condition-invalid-forbidden-method';
 const ROUTER_RULE_KEY_LACK_OF_CONDITION =
     'condition-lack-of-condition';
 const ROUTER_RULE_KEY_LACK_OF_SOURCE =
     'condition-lack-of-source';
 
 promise_test(async t => {
-  const worker = await registerAndActivate(t, ROUTER_RULE_KEY_INVALID_REQUEST_METHOD);
+  const worker = await registerAndActivate(t, ROUTER_RULE_KEY_INVALID_BYTESTRING_REQUEST_METHOD);
   t.add_cleanup(() => {reset_info_in_worker(worker)});
   const {errors} = await get_info_from_worker(worker);
   assert_equals(errors.length, 1);
-}, 'addRoutes should raise for invalid request method.');
+}, 'addRoutes should raise for invalid ByteString request method.');
+
+promise_test(async t => {
+  const worker = await registerAndActivate(t, ROUTER_RULE_KEY_INVALID_HTTP_REQUEST_METHOD);
+  t.add_cleanup(() => {reset_info_in_worker(worker)});
+  const {errors} = await get_info_from_worker(worker);
+  assert_equals(errors.length, 1);
+}, 'addRoutes should raise for invalid HTTP request method.');
+
+promise_test(async t => {
+  const worker = await registerAndActivate(t, ROUTER_RULE_KEY_FORBIDDEN_REQUEST_METHOD);
+  t.add_cleanup(() => {reset_info_in_worker(worker)});
+  const {errors} = await get_info_from_worker(worker);
+  assert_equals(errors.length, 1);
+}, 'addRoutes should raise for forbidden request method.');
 
 promise_test(async t => {
   const worker = await registerAndActivate(t, ROUTER_RULE_KEY_LACK_OF_CONDITION);
diff --git a/tests/wpt/tests/service-workers/service-worker/static-router-no-fetch-handler.https.html b/tests/wpt/tests/service-workers/service-worker/static-router-no-fetch-handler.https.html
index e98dd08a90a..4dbbbe69c7d 100644
--- a/tests/wpt/tests/service-workers/service-worker/static-router-no-fetch-handler.https.html
+++ b/tests/wpt/tests/service-workers/service-worker/static-router-no-fetch-handler.https.html
@@ -15,6 +15,8 @@
 const RULE_KEY_SOURCE_CACHE = 'condition-urlpattern-string-source-cache';
 const RULE_KEY_SOURCE_FETCH_EVENT =
     'condition-request-source-fetch-event';
+const RULE_KEY_SOURCE_RACE_NETWORK_AND_FETCH_HANDLER =
+    'condition-urlpattern-string-source-race-network-and-fetch-handler';
 const SW_SRC = 'resources/static-router-no-fetch-handler-sw.js';
 const CACHED_FILE = 'cache.txt';
 
@@ -44,5 +46,15 @@ promise_test(async t => {
   assert_equals(errors.length, 1);
 }, 'addRoutes should raise if the fetch-event source is used without onfetch')
 
+promise_test(async t => {
+  const worker =
+      await registerAndActivate(t,
+          RULE_KEY_SOURCE_RACE_NETWORK_AND_FETCH_HANDLER, SW_SRC);
+  t.add_cleanup(() => {reset_info_in_worker(worker)});
+
+  const {errors} = await get_info_from_worker(worker);
+  assert_equals(errors.length, 1);
+}, 'addRoutes should raise if the race-network-and-fetch-handler source is used without onfetch')
+
 </script>
 </body>
diff --git a/tests/wpt/tests/shadow-dom/reference-target/tentative/dom-mutation.html b/tests/wpt/tests/shadow-dom/reference-target/tentative/dom-mutation.html
index 54479e00dca..91a94158ccf 100644
--- a/tests/wpt/tests/shadow-dom/reference-target/tentative/dom-mutation.html
+++ b/tests/wpt/tests/shadow-dom/reference-target/tentative/dom-mutation.html
@@ -33,17 +33,17 @@ promise_test(async t => {
   const test_container = await setup_test();
   const host1 = test_container.querySelector("#host1");
   const label1 = host1.shadowRoot.querySelector("#label1");
-  label1.id = "changed";
-  assert_equals(await test_driver.get_computed_label(input1), "Outside the label Label 1 Label 2");
-}, "Changing the ID of the referenced element updates the computed label");
+  label1.id = "new_id";
+  assert_equals(await test_driver.get_computed_label(input1), "");
+}, "Changing the ID of the referenced element results in an empty computed label");
 
 promise_test(async t => {
   const test_container = await setup_test();
   const host1 = test_container.querySelector("#host1");
   const label1 = host1.shadowRoot.querySelector("#label1");
   label1.remove();
-  assert_equals(await test_driver.get_computed_label(input1), "Outside the label Label 2");
-}, "Removing the referenced element updates the computed label");
+  assert_equals(await test_driver.get_computed_label(input1), "");
+}, "Removing the referenced element results in an empty computed label");
 
 promise_test(async t => {
   const test_container = await setup_test();
@@ -55,12 +55,61 @@ promise_test(async t => {
   assert_equals(await test_driver.get_computed_label(input1), "New label");
 }, "New referenced element prepended to the shadow supercedes the existing label");
 
+promise_test(async t => {
+  const test_container = await setup_test();
+  const host1 = test_container.querySelector("#host1");
+  const new_label = document.createElement("label");
+  new_label.id = "label1";
+  new_label.textContent = "New label";
+  host1.shadowRoot.append(new_label);
+  assert_equals(await test_driver.get_computed_label(input1), "Label 1");
+}, "The existing label supercedes new element (with same id as the existing label) appended to the shadow");
+
 promise_test(async t => {
   const test_container = await setup_test();
   const host1 = test_container.querySelector("#host1");
   host1.shadowRoot.referenceTarget = "label2";
   assert_equals(await test_driver.get_computed_label(input1), "Label 2");
 }, "Changing the reference target ID updates the computed label");
+
+async function setup_nested_reference_target() {
+  const test_container = document.querySelector("#test-container");
+  test_container.setHTMLUnsafe(`
+    <div id="outer_host">
+      <template shadowrootmode="open" shadowrootreferencetarget="inner_host">
+        <span>shadow tree level 1</span>
+        <div id="inner_host">
+          <template shadowrootmode="open" shadowrootreferencetarget="real_label1">
+          <span>shadow tree level 2</span>
+          <label id="real_label1">Real Label 1</label>
+          <label id="real_label2">Real Label 2</label>
+          </template>
+        </div>
+      </template>
+    </div>
+    <input id="input1" aria-labelledby="outer_host">`);
+  const input1 = test_container.querySelector("#input1");
+  assert_equals(await test_driver.get_computed_label(input1), "Real Label 1");
+  return test_container
+}
+
+promise_test(async t => {
+  const test_container = await setup_nested_reference_target();
+  const outer_host = test_container.querySelector("#outer_host");
+  const inner_host = outer_host.shadowRoot.querySelector("#inner_host");
+  inner_host.shadowRoot.referenceTarget = "real_label2";
+  assert_equals(await test_driver.get_computed_label(input1), "Real Label 2");
+}, "Changing the nested referenceTarget to reference a different element updates the computed label");
+
+promise_test(async t => {
+  const test_container = await setup_nested_reference_target();
+  const outer_host = test_container.querySelector("#outer_host");
+  const inner_host = outer_host.shadowRoot.querySelector("#inner_host");
+  const real_label1 = inner_host.shadowRoot.querySelector("#real_label1");
+  real_label1.id = "new_id";
+  assert_equals(await test_driver.get_computed_label(input1), "");
+}, "Changing the ID of the nested referenced element results in an empty computed label");
+
 </script>
 </body>
 </html>
diff --git a/tests/wpt/tests/subresource-integrity/signatures/tentative/inline.html b/tests/wpt/tests/subresource-integrity/signatures/tentative/inline.html
index f40a8f127c7..ec5ff72a00d 100644
--- a/tests/wpt/tests/subresource-integrity/signatures/tentative/inline.html
+++ b/tests/wpt/tests/subresource-integrity/signatures/tentative/inline.html
@@ -51,6 +51,12 @@
 
       // Non-ASCII characters.
       "valid signature, valid integrity, non-ASCII": async_test("valid `signature`, valid `integrity`, non-ASCII => executes"),
+
+      // SVG
+      "SVG valid signature, no integrity": async_test("SVG valid `signature`, no `integrity` => blocked"),
+      "SVG valid signature, invalid integrity": async_test("SVG valid `signature`, invalid `integrity` => blocked"),
+      "SVG valid signature, valid integrity": async_test("SVG valid `signature`, valid `integrity` => executes"),
+      "SVG valid signature, multiple integrity": async_test("SVG valid `signature`, multiple `integrity` => executes"),
     };
   </script>
 
@@ -159,4 +165,28 @@
     // Det er fullt av ål i luftputebåten min
     tests["valid signature, valid integrity, non-ASCII"].done();
   </script>
+
+  <!--
+    SVG
+  -->
+  <svg><script signature="ed25519-U1+GWrr0/qwdsIohJmQc9l4Z4Ji8acgpBXSmCXk5nVepNzoNtHrFCq2blReYN2h4FeBE2NtOJzFrBtS0+kUFAA==">
+    tests["SVG valid signature, no integrity"].step(_ => assert_unreached("Should be blocked."));
+  </script></svg>
+  <script>tests["SVG valid signature, no integrity"].done();</script>
+
+  <svg><script signature="ed25519-azU1yb4f+g5CqowFrz2LLIMft6Zj7psdpf90PXyjmxEC1pHaFOgYYwulX9KEe9OSmzj8GZg+6NgmOF4kwhL2Aw=="
+               integrity="invalid-integrity">
+    tests["SVG valid signature, invalid integrity"].step(_ => assert_unreached("Should be blocked."));
+  </script></svg>
+  <script>tests["SVG valid signature, invalid integrity"].done();</script>
+
+  <svg><script signature="ed25519-wKpcLXWo0PlBRa+zg2mXI3Prulg8K03GVl+7y7uQUJlC6g8KpH8g5GIEpn6asL7Ar1OFJIjaJBU87ofbVNo7BQ=="
+               integrity="ed25519-JrQLj5P/89iXES9+vFgrIy29clF9CC/oPPsw3c5D0bs=">
+    tests["SVG valid signature, valid integrity"].done();
+  </script></svg>
+
+  <svg><script signature="ed25519-V3b25FhkHFN4vjxAGK42dxoiTW6nIATEaf7AKMsVfGKYE6VVsGtlaiP0D5wIKsevw0eXOYKUu/KF+yyb0lYkBg=="
+               integrity="ed25519-JrQLj5P/89iXES9+vFgrIy29clF9CC/oPPsw3c5D0bs= ed25519-xDnP380zcL4rJ76rXYjeHlfMyPZEOqpJYjsjEppbuXE=">
+    tests["SVG valid signature, multiple integrity"].done();
+  </script></svg>
 </body>
diff --git a/tests/wpt/tests/svg/types/scripted/SVGAnimatedLength-initial-values.html b/tests/wpt/tests/svg/types/scripted/SVGAnimatedLength-initial-values.html
new file mode 100644
index 00000000000..3c82087d169
--- /dev/null
+++ b/tests/wpt/tests/svg/types/scripted/SVGAnimatedLength-initial-values.html
@@ -0,0 +1,107 @@
+<!DOCTYPE html>
+<title>SVGAnimatedLength, initial values</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script>
+const objects = {
+  SVGCircleElement: 'circle',
+  SVGClipPathElement: 'clipPath',
+  SVGComponentTransferFunctionElement: 'feFuncA',
+  SVGEllipseElement: 'ellipse',
+  SVGFEBlendElement: 'feBlend',
+  SVGFEColorMatrixElement: 'feColorMatrix',
+  SVGFECompositeElement: 'feComposite',
+  SVGFEConvolveMatrixElement: 'feConvolveMatrix',
+  SVGFEDiffuseLightingElement: 'feDiffuseLighting',
+  SVGFEDisplacementMapElement: 'feDisplacementMap',
+  SVGFEDistantLightElement: 'feDistantLight',
+  SVGFEDropShadowElement: 'feDropShadow',
+  SVGFEGaussianBlurElement: 'feGaussianBlur',
+  SVGFEMorphologyElement: 'feMorphology',
+  SVGFEOffsetElement: 'feOffset',
+  SVGFEPointLightElement: 'fePointLight',
+  SVGFESpecularLightingElement: 'feSpecularLighting',
+  SVGFESpotLightElement: 'feSpotLight',
+  SVGFETurbulenceElement: 'feTurbulence',
+  SVGFilterElement: 'filter',
+  SVGFilterPrimitiveStandardAttributes: 'feBlend',
+  SVGForeignObjectElement: 'foreignObject',
+  SVGGeometryElement: 'rect',
+  SVGGradientElement: 'linearGradient',
+  SVGImageElement: 'image',
+  SVGLineElement: 'line',
+  SVGLinearGradientElement: 'linearGradient',
+  SVGMarkerElement: 'marker',
+  SVGMaskElement: 'mask',
+  SVGPatternElement: 'pattern',
+  SVGRadialGradientElement: 'radialGradient',
+  SVGRectElement: 'rect',
+  SVGSVGElement: 'svg',
+  SVGStopElement: 'stop',
+  SVGTextContentElement: 'text',
+  SVGTextPathElement: 'textPath',
+  SVGUseElement: 'use',
+};
+
+function assert_initial_values(attribute_map, config) {
+  if (typeof config == 'undefined')
+    config = {};
+  let getValue = config.getValue || function(value) { return value; };
+  for (let info of attribute_map) {
+    for (let attribute of info.attributes) {
+      let content_attribute = config.mapProperty && config.mapProperty[attribute] || attribute;
+      test(function() {
+        let e = document.createElementNS('http://www.w3.org/2000/svg', objects[info.interface]);
+        let initial = info[attribute] && info[attribute].initial || config.initial;
+        let valid = info[attribute] && info[attribute].valid || config.valid;
+        assert_equals(getValue(e[attribute].baseVal), initial, 'initial before');
+        e.setAttribute(content_attribute, valid);
+        assert_not_equals(getValue(e[attribute].baseVal), initial, 'new value');
+        e.removeAttribute(content_attribute);
+        assert_equals(getValue(e[attribute].baseVal), initial, 'initial after');
+      }, document.title + ', ' + info.interface + '.prototype.' + attribute + ' (remove)');
+
+      test(function() {
+        let e = document.createElementNS('http://www.w3.org/2000/svg', objects[info.interface]);
+        let initial = info[attribute] && info[attribute].initial || config.initial;
+        let valid = info[attribute] && info[attribute].valid || config.valid;
+        assert_equals(getValue(e[attribute].baseVal), initial, 'initial before');
+        e.setAttribute(content_attribute, valid);
+        assert_not_equals(getValue(e[attribute].baseVal), initial, 'new value');
+        e.setAttribute(content_attribute, 'foobar');
+        assert_equals(getValue(e[attribute].baseVal), initial, 'initial after');
+      }, document.title + ', ' + info.interface + '.prototype.' + attribute + ' (invalid value)');
+    }
+  }
+}
+</script>
+<script>
+// Initial values of '0' need not be specified.
+assert_initial_values([
+  { interface: 'SVGCircleElement', attributes: [ 'cx', 'cy', 'r' ] },
+  { interface: 'SVGEllipseElement', attributes: [ 'cx', 'cy', 'rx', 'ry' ] },
+  { interface: 'SVGFilterElement', attributes: [ 'x', 'y', 'width', 'height' ],
+    x: { initial: '-10%' }, y: { initial: '-10%' }, width: { initial: '120%' }, height: { initial: '120%' } },
+  { interface: 'SVGFilterPrimitiveStandardAttributes', attributes: [ 'x', 'y', 'width', 'height' ],
+    x: { initial: '0%' }, y: { initial: '0%' }, width: { initial: '100%' }, height: { initial: '100%' } },
+  { interface: 'SVGForeignObjectElement', attributes: [ 'x', 'y', 'width', 'height' ] },
+  { interface: 'SVGImageElement', attributes: [ 'x', 'y', 'width', 'height' ] },
+  { interface: 'SVGLineElement', attributes: [ 'x1', 'y1', 'x2', 'y2' ] },
+  { interface: 'SVGLinearGradientElement', attributes: [ 'x1', 'y1', 'x2', 'y2' ],
+    x1: { initial: '0%' }, y1: { initial: '0%' }, x2: { initial: '100%' }, y2: { initial: '0%' } },
+  { interface: 'SVGMarkerElement', attributes: [ 'refX', 'refY', 'markerWidth', 'markerHeight' ],
+    markerWidth: { initial: '3' }, markerHeight: { initial: '3' } },
+  { interface: 'SVGMaskElement', attributes: [ 'x', 'y', 'width', 'height' ],
+    x: { initial: '-10%' }, y: { initial: '-10%' }, width: { initial: '120%' }, height: { initial: '120%' } },
+  { interface: 'SVGPatternElement', attributes: [ 'x', 'y', 'width', 'height' ] },
+  { interface: 'SVGRadialGradientElement', attributes: [ 'cx', 'cy', 'r', 'fx', 'fy', 'fr' ],
+    cx: { initial: '50%' }, cy: { initial: '50%' }, r: { initial: '50%' },
+    fx: { initial: '50%' }, fy: { initial: '50%' }, fr: { initial: '0%' } },
+  { interface: 'SVGRectElement', attributes: [ 'x', 'y', 'width', 'height', 'rx', 'ry' ] },
+  { interface: 'SVGSVGElement', attributes: [ 'x', 'y', 'width', 'height' ],
+    width: { initial: '100%' }, height: { initial: '100%' } },
+  { interface: 'SVGTextContentElement', attributes: [ 'textLength' ] },
+  { interface: 'SVGTextPathElement', attributes: [ 'startOffset' ] },
+  { interface: 'SVGUseElement', attributes: [ 'x', 'y', 'width', 'height' ] },
+], { initial: '0', valid: '42', getValue: function(value) { return value.valueAsString } });
+</script>
diff --git a/tests/wpt/tests/tools/webdriver/webdriver/bidi/modules/script.py b/tests/wpt/tests/tools/webdriver/webdriver/bidi/modules/script.py
index 01855766d8c..b11285dd507 100644
--- a/tests/wpt/tests/tools/webdriver/webdriver/bidi/modules/script.py
+++ b/tests/wpt/tests/tools/webdriver/webdriver/bidi/modules/script.py
@@ -98,7 +98,8 @@ class Script(BidiModule):
         function_declaration: str,
         arguments: Optional[List[Mapping[str, Any]]] = None,
         contexts: Optional[List[str]] = None,
-        sandbox: Optional[str] = None
+        sandbox: Optional[str] = None,
+        user_contexts: Optional[List[str]] = None,
     ) -> Mapping[str, Any]:
         params: MutableMapping[str, Any] = {
             "functionDeclaration": function_declaration
@@ -110,6 +111,8 @@ class Script(BidiModule):
             params["contexts"] = contexts
         if sandbox is not None:
             params["sandbox"] = sandbox
+        if user_contexts is not None:
+            params["userContexts"] = user_contexts
 
         return params
 
diff --git a/tests/wpt/tests/tools/webdriver/webdriver/bidi/modules/session.py b/tests/wpt/tests/tools/webdriver/webdriver/bidi/modules/session.py
index 843352baaa9..5b834dc6df4 100644
--- a/tests/wpt/tests/tools/webdriver/webdriver/bidi/modules/session.py
+++ b/tests/wpt/tests/tools/webdriver/webdriver/bidi/modules/session.py
@@ -32,10 +32,13 @@ class Session(BidiModule):
     @command
     def subscribe(self,
                   events: List[str],
-                  contexts: Optional[List[str]] = None) -> Mapping[str, Any]:
+                  contexts: Optional[List[str]] = None,
+                  user_contexts: Optional[List[str]] = None) -> Mapping[str, Any]:
         params: MutableMapping[str, Any] = {"events": events}
         if contexts is not None:
             params["contexts"] = contexts
+        if user_contexts is not None:
+            params["userContexts"] = user_contexts
         return params
 
     @command
diff --git a/tests/wpt/tests/tools/wptrunner/wptrunner/browsers/firefox_android.py b/tests/wpt/tests/tools/wptrunner/wptrunner/browsers/firefox_android.py
index 4df33b1f517..5ad270ef114 100644
--- a/tests/wpt/tests/tools/wptrunner/wptrunner/browsers/firefox_android.py
+++ b/tests/wpt/tests/tools/wptrunner/wptrunner/browsers/firefox_android.py
@@ -137,10 +137,8 @@ def get_environ(chaos_mode_flags, env_extras=None):
     env = {}
     if env_extras is not None:
         env.update(env_extras)
-
-    if "MINIDUMP_SAVE_PATH" in os.environ:
+    if os.environ.get("MINIDUMP_SAVE_PATH"):
         env["MINIDUMP_SAVE_PATH"] = os.environ["MINIDUMP_SAVE_PATH"]
-
     env["MOZ_CRASHREPORTER"] = "1"
     env["MOZ_CRASHREPORTER_SHUTDOWN"] = "1"
     env["MOZ_DISABLE_NONLOCAL_CONNECTIONS"] = "1"
diff --git a/tests/wpt/tests/trusted-types/TrustedTypePolicyFactory-createPolicy-cspTests-none.html b/tests/wpt/tests/trusted-types/TrustedTypePolicyFactory-createPolicy-cspTests-none.html
index a75b50f8f00..5179206e7e1 100644
--- a/tests/wpt/tests/trusted-types/TrustedTypePolicyFactory-createPolicy-cspTests-none.html
+++ b/tests/wpt/tests/trusted-types/TrustedTypePolicyFactory-createPolicy-cspTests-none.html
@@ -4,7 +4,7 @@
 <script src="support/helper.sub.js"></script>
 <script src="./support/csp-violations.js"></script>
 <meta http-equiv="Content-Security-Policy" content="trusted-types 'none'">
-<meta http-equiv="Content-Security-Policy" content="object-src 'none'">
+<meta http-equiv="Content-Security-Policy" content="connect-src 'none'">
 <body>
 <script>
   promise_test(async t => {
diff --git a/tests/wpt/tests/trusted-types/TrustedTypePolicyFactory-createPolicy-cspTests.html b/tests/wpt/tests/trusted-types/TrustedTypePolicyFactory-createPolicy-cspTests.html
index f84634a1408..21005516749 100644
--- a/tests/wpt/tests/trusted-types/TrustedTypePolicyFactory-createPolicy-cspTests.html
+++ b/tests/wpt/tests/trusted-types/TrustedTypePolicyFactory-createPolicy-cspTests.html
@@ -5,7 +5,7 @@
 <script src="./support/csp-violations.js"></script>
 
 <meta http-equiv="Content-Security-Policy" content="trusted-types SomeName JustOneMoreName AnotherName">
-<meta http-equiv="Content-Security-Policy" content="object-src 'none'">
+<meta http-equiv="Content-Security-Policy" content="connect-src 'none'">
 <body>
 <script>
   // Allowed name test
diff --git a/tests/wpt/tests/trusted-types/require-trusted-types-for-report-only.html.headers b/tests/wpt/tests/trusted-types/require-trusted-types-for-report-only.html.headers
index 8344761bddd..3f0aa88da83 100644
--- a/tests/wpt/tests/trusted-types/require-trusted-types-for-report-only.html.headers
+++ b/tests/wpt/tests/trusted-types/require-trusted-types-for-report-only.html.headers
@@ -1,2 +1,2 @@
 Content-Security-Policy-Report-Only: require-trusted-types-for 'script'
-Content-Security-Policy: object-src 'none'
+Content-Security-Policy: connect-src 'none'
diff --git a/tests/wpt/tests/trusted-types/require-trusted-types-for.html b/tests/wpt/tests/trusted-types/require-trusted-types-for.html
index c6dfbcbfb48..8e18b20ae2e 100644
--- a/tests/wpt/tests/trusted-types/require-trusted-types-for.html
+++ b/tests/wpt/tests/trusted-types/require-trusted-types-for.html
@@ -4,7 +4,7 @@
   <script src="/resources/testharnessreport.js"></script>
   <script src="./support/csp-violations.js"></script>
   <meta http-equiv="Content-Security-Policy" content="require-trusted-types-for 'script'">
-  <meta http-equiv="Content-Security-Policy" content="object-src 'none'">
+  <meta http-equiv="Content-Security-Policy" content="connect-src 'none'">
 </head>
 <body>
 <script>
diff --git a/tests/wpt/tests/trusted-types/set-event-handlers-content-attributes.tentative.html b/tests/wpt/tests/trusted-types/set-event-handlers-content-attributes.tentative.html
index 0dd5f8b3a08..96ac03bd923 100644
--- a/tests/wpt/tests/trusted-types/set-event-handlers-content-attributes.tentative.html
+++ b/tests/wpt/tests/trusted-types/set-event-handlers-content-attributes.tentative.html
@@ -62,6 +62,40 @@
          }, `${element.tagName}.setAttributeNS(${attr.name}, "${input_string}") calls default policy`);
       });
     }
+
+    [
+    // The following names correspond to event handler content attributes, but
+    // not for the div element. The current version of the spec says we should
+    // still run the default policy on them.
+    "onafterprint",    // body or frameset elements.
+    "onwaitingforkey", // audio or video elements.
+    "onbegin",         // SVG animation element.
+    ].forEach(attrName => {
+      promise_test(async t => {
+        t.add_cleanup(resetSeenSinkName);
+        let element = document.createElement("div");
+        element.setAttribute(attrName, input_string);
+        assert_equals(seenSinkName, `Element ${attrName}`);
+        assert_equals(element.getAttribute(attrName), output_string);
+      }, `DIV.setAttribute("${attrName}", "${input_string}") calls default policy`);
+    });
+
+    // The following names do not correspond to any event handler content
+    // attributes on a DOM element, so default policy should not apply.
+    [
+    "onreadystatechange", // XMLHttpRequest, Document
+    "onopen",             // EventSource, RTCDataChannel, WebSocket, etc
+    "ondoesnotexist",     // starts with "on" but not defined in any spec.
+    ].forEach(attrName => {
+      promise_test(async t => {
+        t.add_cleanup(resetSeenSinkName);
+        let element = document.createElement("div");
+        element.setAttribute(attrName, input_string);
+        assert_equals(seenSinkName, undefined);
+        assert_equals(element.getAttribute(attrName), input_string);
+      }, `DIV.setAttribute("${attrName}", "${input_string}") does not call default policy`);
+    });
+
   });
 </script>
 </body>
diff --git a/tests/wpt/tests/trusted-types/support/csp-violations.js b/tests/wpt/tests/trusted-types/support/csp-violations.js
index 61b763911f7..c70d7bbecf9 100644
--- a/tests/wpt/tests/trusted-types/support/csp-violations.js
+++ b/tests/wpt/tests/trusted-types/support/csp-violations.js
@@ -7,9 +7,13 @@ const cspDirectives = [
   "script-src",
 ];
 
-// A generic helper that runs function fn and return a promise resolving with
-// an array of reported violations for trusted type directives and a possible
-// exception thrown.
+// A generic helper that runs function fn and returns a promise resolving with
+// an array of reported violations and a possible exception thrown. This forces
+// a "connect-src" violation before and after calling fn, to make sure we are
+// not gathering violations reported before fn, and that all the violations
+// reported by fn have been delivered. This assumes that the test file contains
+// the CSP directive connect-src 'none' and that fn is not itself triggering
+// a "connect-src" violation report.
 function trusted_type_violations_and_exception_for(fn) {
   return new Promise((resolve, reject) => {
     // Listen for security policy violations.
@@ -17,15 +21,15 @@ function trusted_type_violations_and_exception_for(fn) {
     let handler = e => {
       if (cspDirectives.includes(e.effectiveDirective)) {
         result.violations.push(e);
-      } else if (e.effectiveDirective === "object-src") {
-        document.removeEventListener("securitypolicyviolation", handler);
+      } else if (e.effectiveDirective === "connect-src") {
+        self.removeEventListener("securitypolicyviolation", handler);
         e.stopPropagation();
         resolve(result);
       } else {
         reject(`Unexpected violation for directive ${e.effectiveDirective}`);
       }
     }
-    document.addEventListener("securitypolicyviolation", handler);
+    self.addEventListener("securitypolicyviolation", handler);
 
     // Run the specified function and record any exception.
     try {
@@ -33,14 +37,15 @@ function trusted_type_violations_and_exception_for(fn) {
     } catch(e) {
       result.exception = e;
     }
-
-    // Force an "object-src" violation, to make sure all the previous violations
-    // have been delivered. This assumes the test file's associated .headers
-    // file contains Content-Security-Policy: object-src 'none'.
-    var o = document.createElement('object');
-    o.type = "video/mp4";
-    o.data = "dummy.webm";
-    document.body.appendChild(o);
+    // Force a connect-src violation. WebKit additionally throws a SecurityError
+    // so ignore that. See https://bugs.webkit.org/show_bug.cgi?id=286744
+    try {
+      new EventSource("/common/blank.html");
+    } catch(e) {
+      if (!e instanceof DOMException || e.name !== "SecurityError") {
+        throw e;
+      }
+    }
   });
 }
 
diff --git a/tests/wpt/tests/trusted-types/trusted-types-eval-reporting-no-unsafe-eval.html b/tests/wpt/tests/trusted-types/trusted-types-eval-reporting-no-unsafe-eval.html
index 5e2087a1c6b..797dfa1e2ef 100644
--- a/tests/wpt/tests/trusted-types/trusted-types-eval-reporting-no-unsafe-eval.html
+++ b/tests/wpt/tests/trusted-types/trusted-types-eval-reporting-no-unsafe-eval.html
@@ -11,13 +11,13 @@
   // headers are set in the .headers file:
   //
   //   Content-Security-Policy: script-src 'unsafe-inline'; report-uri ...
-  //   Content-Security-Policy: object-src 'none'
+  //   Content-Security-Policy: connect-src 'none'
   //   Content-Security-Policy: require-trusted-types-for 'script'
   //
   // The second rule is there so we can provoke a CSP violation report at will.
   // The intent is that in order to test that a violation has *not* been thrown
   // (and without resorting to abominations like timeouts), we force a *another*
-  // CSP violation (by violating the object-src rule) and when that event is
+  // CSP violation (by violating the connect-src rule) and when that event is
   // processed we can we sure that an earlier event - if it indeed occurred -
   // must have already been processed.
 
diff --git a/tests/wpt/tests/trusted-types/trusted-types-eval-reporting-no-unsafe-eval.html.headers b/tests/wpt/tests/trusted-types/trusted-types-eval-reporting-no-unsafe-eval.html.headers
index 2bdd8a7d1ab..72cebc03552 100644
--- a/tests/wpt/tests/trusted-types/trusted-types-eval-reporting-no-unsafe-eval.html.headers
+++ b/tests/wpt/tests/trusted-types/trusted-types-eval-reporting-no-unsafe-eval.html.headers
@@ -1,3 +1,3 @@
 Content-Security-Policy: script-src http: https: 'nonce-123' 'report-sample'
-Content-Security-Policy: object-src 'none'
+Content-Security-Policy: connect-src 'none'
 Content-Security-Policy: require-trusted-types-for 'script'
diff --git a/tests/wpt/tests/trusted-types/trusted-types-eval-reporting-report-only.html b/tests/wpt/tests/trusted-types/trusted-types-eval-reporting-report-only.html
index 226db176bd8..5b5ce50601c 100644
--- a/tests/wpt/tests/trusted-types/trusted-types-eval-reporting-report-only.html
+++ b/tests/wpt/tests/trusted-types/trusted-types-eval-reporting-report-only.html
@@ -11,7 +11,7 @@
   // headers are set in the .headers file:
   //
   //   Content-Security-Policy: script-src 'unsafe-inline' 'unsafe-eval'; report-uri ...
-  //   Content-Security-Policy: object-src 'none'
+  //   Content-Security-Policy: connect-src 'none'
   //   Content-Security-Policy-Report-Only: require-trusted-types-for 'script'
   //
   // The last rule is there so we can provoke a CSP violation report at will.
diff --git a/tests/wpt/tests/trusted-types/trusted-types-eval-reporting-report-only.html.headers b/tests/wpt/tests/trusted-types/trusted-types-eval-reporting-report-only.html.headers
index d212eda5ef5..9ab275fe6f1 100644
--- a/tests/wpt/tests/trusted-types/trusted-types-eval-reporting-report-only.html.headers
+++ b/tests/wpt/tests/trusted-types/trusted-types-eval-reporting-report-only.html.headers
@@ -1,4 +1,4 @@
 Content-Security-Policy: script-src http: https: 'nonce-123' 'unsafe-eval'
-Content-Security-Policy: object-src 'none'
+Content-Security-Policy: connect-src 'none'
 Content-Security-Policy-Report-Only: require-trusted-types-for 'script'
 
diff --git a/tests/wpt/tests/trusted-types/trusted-types-eval-reporting.html b/tests/wpt/tests/trusted-types/trusted-types-eval-reporting.html
index 2fc889549ec..d037c058d9b 100644
--- a/tests/wpt/tests/trusted-types/trusted-types-eval-reporting.html
+++ b/tests/wpt/tests/trusted-types/trusted-types-eval-reporting.html
@@ -11,7 +11,7 @@
   // headers are set in the .headers file:
   //
   //   Content-Security-Policy: script-src 'unsafe-inline' 'unsafe-eval'; report-uri ...
-  //   Content-Security-Policy: object-src 'none'
+  //   Content-Security-Policy: connect-src 'none'
   //   Content-Security-Policy: require-trusted-types-for 'script'
   //
   // The last rule is there so we can provoke a CSP violation report at will.
diff --git a/tests/wpt/tests/trusted-types/trusted-types-eval-reporting.html.headers b/tests/wpt/tests/trusted-types/trusted-types-eval-reporting.html.headers
index 8989345e722..1e57f8bf585 100644
--- a/tests/wpt/tests/trusted-types/trusted-types-eval-reporting.html.headers
+++ b/tests/wpt/tests/trusted-types/trusted-types-eval-reporting.html.headers
@@ -1,4 +1,4 @@
 Content-Security-Policy: script-src http: https: 'nonce-123' 'unsafe-eval'
-Content-Security-Policy: object-src 'none'
+Content-Security-Policy: connect-src 'none'
 Content-Security-Policy: require-trusted-types-for 'script'
 
diff --git a/tests/wpt/tests/trusted-types/trusted-types-report-only.html.headers b/tests/wpt/tests/trusted-types/trusted-types-report-only.html.headers
index 383f05138fe..602186027d0 100644
--- a/tests/wpt/tests/trusted-types/trusted-types-report-only.html.headers
+++ b/tests/wpt/tests/trusted-types/trusted-types-report-only.html.headers
@@ -1,2 +1,2 @@
 Content-Security-Policy-Report-Only: trusted-types two; report-uri /content-security-policy/resources/dummy-report.php; require-trusted-types-for 'script';
-Content-Security-Policy: object-src 'none'
+Content-Security-Policy: connect-src 'none'
diff --git a/tests/wpt/tests/trusted-types/trusted-types-reporting-for-DOMParser-parseFromString.html b/tests/wpt/tests/trusted-types/trusted-types-reporting-for-DOMParser-parseFromString.html
new file mode 100644
index 00000000000..0dccd3bac68
--- /dev/null
+++ b/tests/wpt/tests/trusted-types/trusted-types-reporting-for-DOMParser-parseFromString.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="support/csp-violations.js"></script>
+<meta http-equiv="Content-Security-Policy"
+      content="require-trusted-types-for 'script'; connect-src 'none';">
+<body>
+  <script>
+    const policy = trustedTypes.createPolicy("dummy", { createHTML: x => x });
+    const input = `<p>${'A'.repeat(100)}</p>`;
+
+    promise_test(async t => {
+      await no_trusted_type_violation_for(_ =>
+        (new DOMParser()).parseFromString(policy.createHTML(input), "text/html")
+      );
+    }, "No violation reported for TrustedHTML.");
+
+    promise_test(async t => {
+      let violation = await trusted_type_violation_for(TypeError, _ =>
+        (new DOMParser()).parseFromString(input, "text/html")
+      );
+      assert_equals(violation.blockedURI, "trusted-types-sink");
+      assert_equals(violation.sample, `DOMParser parseFromString|${clipSampleIfNeeded(input)}`);
+    }, "Violation report for plain string.");
+  </script>
+</body>
diff --git a/tests/wpt/tests/trusted-types/trusted-types-reporting-for-Document-execCommand.html b/tests/wpt/tests/trusted-types/trusted-types-reporting-for-Document-execCommand.html
new file mode 100644
index 00000000000..617c3c18c53
--- /dev/null
+++ b/tests/wpt/tests/trusted-types/trusted-types-reporting-for-Document-execCommand.html
@@ -0,0 +1,34 @@
+<!DOCTYPE html>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="support/csp-violations.js"></script>
+<meta http-equiv="Content-Security-Policy"
+      content="require-trusted-types-for 'script'; connect-src 'none';">
+<body>
+  <script>
+    const policy = trustedTypes.createPolicy("dummy", { createHTML: x => x });
+    const input = `<p>${'A'.repeat(100)}</p>`;
+
+    promise_test(async t => {
+      await no_trusted_type_violation_for(_ => {
+        ["insertHTML", "paste"].forEach(command => {
+          document.execCommand(command, false, policy.createHTML(input));
+        });
+      });
+    }, "No violation reported for TrustedHTML.");
+
+    promise_test(async t => {
+      await no_trusted_type_violation_for(_ =>
+        document.execCommand("paste", false, input)
+      );
+    }, "No violation reported (paste command).");
+
+    promise_test(async t => {
+      let violation = await trusted_type_violation_for(TypeError, _ =>
+        document.execCommand("insertHTML", false, input)
+      );
+      assert_equals(violation.blockedURI, "trusted-types-sink");
+      assert_equals(violation.sample, `Document execCommand|${clipSampleIfNeeded(input)}`);
+    }, "Violation report for plain string (insertHTML command).");
+  </script>
+</body>
diff --git a/tests/wpt/tests/trusted-types/trusted-types-reporting-for-Document-parseHTMLUnsafe.html b/tests/wpt/tests/trusted-types/trusted-types-reporting-for-Document-parseHTMLUnsafe.html
new file mode 100644
index 00000000000..b0b286f733e
--- /dev/null
+++ b/tests/wpt/tests/trusted-types/trusted-types-reporting-for-Document-parseHTMLUnsafe.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="support/csp-violations.js"></script>
+<meta http-equiv="Content-Security-Policy"
+      content="require-trusted-types-for 'script'; connect-src 'none';">
+<body>
+  <script>
+    const policy = trustedTypes.createPolicy("dummy", { createHTML: x => x });
+    const input = `<p>${'A'.repeat(100)}</p>`;
+
+    promise_test(async t => {
+      await no_trusted_type_violation_for(_ =>
+        Document.parseHTMLUnsafe(policy.createHTML(input))
+      );
+    }, "No violation reported for TrustedHTML.");
+
+    promise_test(async t => {
+      let violation = await trusted_type_violation_for(TypeError, _ =>
+        Document.parseHTMLUnsafe(input)
+      );
+      assert_equals(violation.blockedURI, "trusted-types-sink");
+      assert_equals(violation.sample, `Document parseHTMLUnsafe|${clipSampleIfNeeded(input)}`);
+    }, "Violation report for plain string.");
+  </script>
+</body>
diff --git a/tests/wpt/tests/trusted-types/trusted-types-reporting-for-Document-write.html b/tests/wpt/tests/trusted-types/trusted-types-reporting-for-Document-write.html
new file mode 100644
index 00000000000..b20c458b4a1
--- /dev/null
+++ b/tests/wpt/tests/trusted-types/trusted-types-reporting-for-Document-write.html
@@ -0,0 +1,38 @@
+<!DOCTYPE html>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="support/csp-violations.js"></script>
+<meta http-equiv="Content-Security-Policy"
+      content="require-trusted-types-for 'script'; connect-src 'none';">
+<body>
+  <div id="log"></div>
+  <script>
+    const policy = trustedTypes.createPolicy("dummy", { createHTML: x => x });
+    const input = [`<p>${'A'.repeat(50)}</p>`,
+                   `<p>${'B'.repeat(30)}</p>`,
+                   `<p>${'C'.repeat(20)}</p>`];
+    const joinedInput = input.join('');
+    const trustedInput = input.map(x => policy.createHTML(input));
+
+    // Create a separate document for testing, so write calls don't mess up with
+    // how testharness writes its output in the main document.
+    const doc = (new DOMParser()).
+          parseFromString(policy.createHTML("<body></body>"), "text/html");
+
+    ["write", "writeln"].forEach(methodName => {
+      promise_test(async t => {
+        await no_trusted_type_violation_for(_ =>
+          doc[methodName](...trustedInput)
+        );
+      }, `No violation reported for ${methodName}() with TrustedHTML arguments.`);
+
+      promise_test(async t => {
+        let violation = await trusted_type_violation_for(TypeError, _ =>
+          doc[methodName](trustedInput[0], input[1], trustedInput[2])
+        );
+        assert_equals(violation.blockedURI, "trusted-types-sink");
+        assert_equals(violation.sample, `Document ${methodName}|${clipSampleIfNeeded(joinedInput)}`);
+      }, `Violation report for plain string for ${methodName}() with at least one plain string argument.`);
+    });
+  </script>
+</body>
diff --git a/tests/wpt/tests/trusted-types/trusted-types-reporting-for-Element-innerHTML.html b/tests/wpt/tests/trusted-types/trusted-types-reporting-for-Element-innerHTML.html
new file mode 100644
index 00000000000..5782c689071
--- /dev/null
+++ b/tests/wpt/tests/trusted-types/trusted-types-reporting-for-Element-innerHTML.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="support/csp-violations.js"></script>
+<meta http-equiv="Content-Security-Policy"
+      content="require-trusted-types-for 'script'; connect-src 'none';">
+<body>
+  <script>
+    const policy = trustedTypes.createPolicy("dummy", { createHTML: x => x });
+    const input = `<p>${'A'.repeat(100)}</p>`;
+
+    promise_test(async t => {
+      await no_trusted_type_violation_for(_ =>
+        document.createElement("div").innerHTML = policy.createHTML(input)
+      );
+    }, "No violation reported for TrustedHTML.");
+
+    promise_test(async t => {
+      let violation = await trusted_type_violation_for(TypeError, _ =>
+        document.createElement("div").innerHTML = input
+      );
+      assert_equals(violation.blockedURI, "trusted-types-sink");
+      assert_equals(violation.sample, `Element innerHTML|${clipSampleIfNeeded(input)}`);
+    }, "Violation report for plain string.");
+  </script>
+</body>
diff --git a/tests/wpt/tests/trusted-types/trusted-types-reporting-for-Element-insertAdjacentHTML.html b/tests/wpt/tests/trusted-types/trusted-types-reporting-for-Element-insertAdjacentHTML.html
new file mode 100644
index 00000000000..6448b3f4097
--- /dev/null
+++ b/tests/wpt/tests/trusted-types/trusted-types-reporting-for-Element-insertAdjacentHTML.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="support/csp-violations.js"></script>
+<meta http-equiv="Content-Security-Policy"
+      content="require-trusted-types-for 'script'; connect-src 'none';">
+<body>
+  <script>
+    const policy = trustedTypes.createPolicy("dummy", { createHTML: x => x });
+    const input = `<p>${'A'.repeat(100)}</p>`;
+
+    promise_test(async t => {
+      await no_trusted_type_violation_for(_ =>
+        document.createElement("div").
+          insertAdjacentHTML("beforeend", policy.createHTML(input))
+      );
+    }, "No violation reported for TrustedHTML.");
+
+    promise_test(async t => {
+      let violation = await trusted_type_violation_for(TypeError, _ =>
+        document.createElement("div").insertAdjacentHTML("beforeend", input)
+      );
+      assert_equals(violation.blockedURI, "trusted-types-sink");
+      assert_equals(violation.sample, `Element insertAdjacentHTML|${clipSampleIfNeeded(input)}`);
+    }, "Violation report for plain string.");
+  </script>
+</body>
diff --git a/tests/wpt/tests/trusted-types/trusted-types-reporting-for-Element-outerHTML.html b/tests/wpt/tests/trusted-types/trusted-types-reporting-for-Element-outerHTML.html
new file mode 100644
index 00000000000..a5fcb2d24f0
--- /dev/null
+++ b/tests/wpt/tests/trusted-types/trusted-types-reporting-for-Element-outerHTML.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="support/csp-violations.js"></script>
+<meta http-equiv="Content-Security-Policy"
+      content="require-trusted-types-for 'script'; connect-src 'none';">
+<body>
+  <script>
+    const policy = trustedTypes.createPolicy("dummy", { createHTML: x => x });
+    const input = `<p>${'A'.repeat(100)}</p>`;
+
+    promise_test(async t => {
+      await no_trusted_type_violation_for(_ =>
+        document.createElement("div").outerHTML = policy.createHTML(input)
+      );
+    }, "No violation reported for TrustedHTML.");
+
+    promise_test(async t => {
+      let violation = await trusted_type_violation_for(TypeError, _ =>
+        document.createElement("div").outerHTML = input
+      );
+      assert_equals(violation.blockedURI, "trusted-types-sink");
+      assert_equals(violation.sample, `Element outerHTML|${clipSampleIfNeeded(input)}`);
+    }, "Violation report for plain string.");
+  </script>
+</body>
diff --git a/tests/wpt/tests/trusted-types/trusted-types-reporting-for-Element-setAttribute.html b/tests/wpt/tests/trusted-types/trusted-types-reporting-for-Element-setAttribute.html
new file mode 100644
index 00000000000..f0ad7a966f6
--- /dev/null
+++ b/tests/wpt/tests/trusted-types/trusted-types-reporting-for-Element-setAttribute.html
@@ -0,0 +1,107 @@
+<!DOCTYPE html>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="support/csp-violations.js"></script>
+<script src="support/namespaces.js"></script>
+<meta http-equiv="Content-Security-Policy"
+      content="require-trusted-types-for 'script'; connect-src 'none';">
+<body>
+  <script>
+    const policy = trustedTypes.createPolicy("dummy", {
+      createHTML: x => x, createScript: x => x, createScriptURL: x => x });
+    const input = 'A'.repeat(100);
+    const trustedHTML = policy.createHTML(input);
+    const trustedScript = policy.createScript(input);
+    const trustedScriptURL = policy.createScriptURL(input);
+    function createIFrame() { return document.createElement("iframe"); }
+    function createScript() { return document.createElement("script"); }
+    function createSVGScript() { return document.createElementNS(NSURI_SVG, "script"); }
+
+    promise_test(async t => {
+      await no_trusted_type_violation_for(_ => {
+        createIFrame().setAttribute("srcdoc", trustedHTML);
+        createIFrame().setAttributeNS(null, "srcdoc", trustedHTML);
+        createIFrame().setAttribute("onclick", trustedScript);
+        createIFrame().setAttributeNS(null, "onclick", trustedScript);
+        createScript().setAttribute("src", trustedScriptURL);
+        createScript().setAttributeNS(null, "src", trustedScriptURL);
+        createSVGScript().setAttribute("href", trustedScriptURL);
+        createSVGScript().setAttributeNS(null, "href", trustedScriptURL);
+        createSVGScript().setAttributeNS(NSURI_XLINK, "href", trustedScriptURL);
+      });
+    }, "No violation reported for trusted types.");
+
+    promise_test(async t => {
+      let violation = await trusted_type_violation_for(TypeError, _ => {
+        createIFrame().setAttribute("srcdoc", input);
+      });
+      assert_equals(violation.blockedURI, "trusted-types-sink");
+      assert_equals(violation.sample, `HTMLIFrameElement srcdoc|${clipSampleIfNeeded(input)}`);
+    }, "Violation report for HTMLIFrameElement.setAttribute('srcdoc', plain_string)");
+
+    promise_test(async t => {
+      let violation = await trusted_type_violation_for(TypeError, _ => {
+        createIFrame().setAttributeNS(null, "srcdoc", input);
+      });
+      assert_equals(violation.blockedURI, "trusted-types-sink");
+      assert_equals(violation.sample, `HTMLIFrameElement srcdoc|${clipSampleIfNeeded(input)}`);
+    }, "Violation report for HTMLIFrameElement.setAttributeNS(null, 'srcdoc', plain_string)");
+
+    promise_test(async t => {
+      let violation = await trusted_type_violation_for(TypeError, _ => {
+        createIFrame().setAttribute("onclick", input);
+      });
+      assert_equals(violation.blockedURI, "trusted-types-sink");
+      assert_equals(violation.sample, `Element onclick|${clipSampleIfNeeded(input)}`);
+    }, "Violation report for Element.setAttribute('onclick', plain_string)");
+
+    promise_test(async t => {
+      let violation = await trusted_type_violation_for(TypeError, _ => {
+        createIFrame().setAttributeNS(null, "onclick", input);
+      });
+      assert_equals(violation.blockedURI, "trusted-types-sink");
+      assert_equals(violation.sample, `Element onclick|${clipSampleIfNeeded(input)}`);
+    }, "Violation report for Element.setAttributeNS(null, 'onclick', plain_string)");
+
+    promise_test(async t => {
+      let violation = await trusted_type_violation_for(TypeError, _ => {
+        createScript().setAttribute("src", input);
+      });
+      assert_equals(violation.blockedURI, "trusted-types-sink");
+      assert_equals(violation.sample, `HTMLScriptElement src|${clipSampleIfNeeded(input)}`);
+    }, "Violation report for HTMLScriptElement.setAttribute('src', plain_string)");
+
+    promise_test(async t => {
+      let violation = await trusted_type_violation_for(TypeError, _ => {
+        createScript().setAttributeNS(null, "src", input);
+      });
+      assert_equals(violation.blockedURI, "trusted-types-sink");
+      assert_equals(violation.sample, `HTMLScriptElement src|${clipSampleIfNeeded(input)}`);
+    }, "Violation report for HTMLScriptElement.setAttributeNS(null, 'src', plain_string)");
+
+    promise_test(async t => {
+      let violation = await trusted_type_violation_for(TypeError, _ => {
+        createSVGScript().setAttribute("href", input);
+      });
+      assert_equals(violation.blockedURI, "trusted-types-sink");
+      assert_equals(violation.sample, `SVGScriptElement href|${clipSampleIfNeeded(input)}`);
+    }, "Violation report for SVGScriptElement.setAttribute('href', plain_string)");
+
+    promise_test(async t => {
+      let violation = await trusted_type_violation_for(TypeError, _ => {
+        createSVGScript().setAttributeNS(null, "href", input);
+      });
+      assert_equals(violation.blockedURI, "trusted-types-sink");
+      assert_equals(violation.sample, `SVGScriptElement href|${clipSampleIfNeeded(input)}`);
+    }, `Violation report for SVGScriptElement.setAttributeNS(null, 'href', plain_string)`);
+
+    promise_test(async t => {
+      let violation = await trusted_type_violation_for(TypeError, _ => {
+        createSVGScript().setAttributeNS(NSURI_XLINK, "href", input);
+      });
+      assert_equals(violation.blockedURI, "trusted-types-sink");
+      assert_equals(violation.sample, `SVGScriptElement href|${clipSampleIfNeeded(input)}`);
+    }, `Violation report for SVGScriptElement.setAttributeNS(${NSURI_XLINK}, 'href', plain_string)`);
+
+  </script>
+</body>
diff --git a/tests/wpt/tests/trusted-types/trusted-types-reporting-for-Element-setHTMLUnsafe.html b/tests/wpt/tests/trusted-types/trusted-types-reporting-for-Element-setHTMLUnsafe.html
new file mode 100644
index 00000000000..41bc4d57b7a
--- /dev/null
+++ b/tests/wpt/tests/trusted-types/trusted-types-reporting-for-Element-setHTMLUnsafe.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="support/csp-violations.js"></script>
+<meta http-equiv="Content-Security-Policy"
+      content="require-trusted-types-for 'script'; connect-src 'none';">
+<body>
+  <script>
+    const policy = trustedTypes.createPolicy("dummy", { createHTML: x => x });
+    const input = `<p>${'A'.repeat(100)}</p>`;
+
+    promise_test(async t => {
+      await no_trusted_type_violation_for(_ =>
+        document.createElement("div").setHTMLUnsafe(policy.createHTML(input))
+      );
+    }, "No violation reported for TrustedHTML.");
+
+    promise_test(async t => {
+      let violation = await trusted_type_violation_for(TypeError, _ =>
+        document.createElement("div").setHTMLUnsafe(input)
+      );
+      assert_equals(violation.blockedURI, "trusted-types-sink");
+      assert_equals(violation.sample, `Element setHTMLUnsafe|${clipSampleIfNeeded(input)}`);
+    }, "Violation report for plain string.");
+  </script>
+</body>
diff --git a/tests/wpt/tests/trusted-types/trusted-types-reporting-for-HTMLIFrameElement-srcdoc.html b/tests/wpt/tests/trusted-types/trusted-types-reporting-for-HTMLIFrameElement-srcdoc.html
new file mode 100644
index 00000000000..b86eb6e6910
--- /dev/null
+++ b/tests/wpt/tests/trusted-types/trusted-types-reporting-for-HTMLIFrameElement-srcdoc.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="support/csp-violations.js"></script>
+<meta http-equiv="Content-Security-Policy"
+      content="require-trusted-types-for 'script'; connect-src 'none';">
+<body>
+  <script>
+    const policy = trustedTypes.createPolicy("dummy", { createHTML: x => x });
+    const input = `<p>${'A'.repeat(100)}</p>`;
+
+    promise_test(async t => {
+      await no_trusted_type_violation_for(_ =>
+        document.createElement("iframe").srcdoc = policy.createHTML(input)
+      );
+    }, "No violation reported for TrustedHTML.");
+
+    promise_test(async t => {
+      let violation = await trusted_type_violation_for(TypeError, _ =>
+        document.createElement("iframe").srcdoc = input
+      );
+      assert_equals(violation.blockedURI, "trusted-types-sink");
+      assert_equals(violation.sample, `HTMLIFrameElement srcdoc|${clipSampleIfNeeded(input)}`);
+    }, "Violation report for plain string.");
+  </script>
+</body>
diff --git a/tests/wpt/tests/trusted-types/trusted-types-reporting-for-HTMLScriptElement.html b/tests/wpt/tests/trusted-types/trusted-types-reporting-for-HTMLScriptElement.html
new file mode 100644
index 00000000000..3c540e8d287
--- /dev/null
+++ b/tests/wpt/tests/trusted-types/trusted-types-reporting-for-HTMLScriptElement.html
@@ -0,0 +1,44 @@
+<!DOCTYPE html>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="support/csp-violations.js"></script>
+<meta http-equiv="Content-Security-Policy"
+      content="require-trusted-types-for 'script'; connect-src 'none';">
+<body>
+  <script>
+    function createScript() { return document.createElement("script"); }
+    const policy = trustedTypes.createPolicy("dummy", {
+      createScript: x => x,
+      createScriptURL: x => x,
+    });
+    const properties = {
+      innerText: "script",
+      textContent: "script",
+      src: "scriptURL",
+      text: "script",
+    };
+    const input = {
+      script: `${';'.repeat(100)}`,
+      scriptURL: `about:blank?${'A'.repeat(100)}`,
+    };
+    const trustedInput = {
+      script: policy.createScript(input.script),
+      scriptURL: policy.createScriptURL(input.scriptURL),
+    };
+    for (let [property, type] of Object.entries(properties)) {
+      promise_test(async t => {
+        await no_trusted_type_violation_for(_ =>
+          createScript()[property] = trustedInput[type]
+        );
+      }, `No violation reported for trusted input (${property}).`);
+
+      promise_test(async t => {
+        let violation = await trusted_type_violation_for(TypeError, _ =>
+          createScript()[property] = input[type]
+        );
+        assert_equals(violation.blockedURI, "trusted-types-sink");
+        assert_equals(violation.sample, `HTMLScriptElement ${property}|${clipSampleIfNeeded(input[type])}`);
+      }, `Violation report for plain string (${property})`);
+    }
+  </script>
+</body>
diff --git a/tests/wpt/tests/trusted-types/trusted-types-reporting-for-Range-createContextualFragment.html b/tests/wpt/tests/trusted-types/trusted-types-reporting-for-Range-createContextualFragment.html
new file mode 100644
index 00000000000..8f34ba0ed1d
--- /dev/null
+++ b/tests/wpt/tests/trusted-types/trusted-types-reporting-for-Range-createContextualFragment.html
@@ -0,0 +1,32 @@
+<!DOCTYPE html>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="support/csp-violations.js"></script>
+<meta http-equiv="Content-Security-Policy"
+      content="require-trusted-types-for 'script'; connect-src 'none';">
+<body>
+  <div id="element"></div>
+  <script>
+    const policy = trustedTypes.createPolicy("dummy", { createHTML: x => x });
+    const input = `<p>${'A'.repeat(100)}</p>`;
+    function createRange() {
+      let range = document.createRange();
+      range.selectNodeContents(document.getElementById("element"));
+      return range;
+    }
+
+    promise_test(async t => {
+      await no_trusted_type_violation_for(_ =>
+        createRange().createContextualFragment(policy.createHTML(input))
+      );
+    }, "No violation reported for TrustedHTML.");
+
+    promise_test(async t => {
+      let violation = await trusted_type_violation_for(TypeError, _ =>
+        createRange().createContextualFragment(input)
+      );
+      assert_equals(violation.blockedURI, "trusted-types-sink");
+      assert_equals(violation.sample, `Range createContextualFragment|${clipSampleIfNeeded(input)}`);
+    }, "Violation report for plain string.");
+  </script>
+</body>
diff --git a/tests/wpt/tests/trusted-types/trusted-types-reporting-for-ShadowRoot-innerHTML.html b/tests/wpt/tests/trusted-types/trusted-types-reporting-for-ShadowRoot-innerHTML.html
new file mode 100644
index 00000000000..9aaf2d8aa4f
--- /dev/null
+++ b/tests/wpt/tests/trusted-types/trusted-types-reporting-for-ShadowRoot-innerHTML.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="support/csp-violations.js"></script>
+<meta http-equiv="Content-Security-Policy"
+      content="require-trusted-types-for 'script'; connect-src 'none';">
+<body>
+  <script>
+    const policy = trustedTypes.createPolicy("dummy", { createHTML: x => x });
+    const input = `<p>${'A'.repeat(100)}</p>`;
+    function createShadowRoot() {
+      return document.createElement('div').attachShadow({mode: 'open'});
+    }
+
+    promise_test(async t => {
+      await no_trusted_type_violation_for(_ =>
+        createShadowRoot().innerHTML = policy.createHTML(input)
+      );
+    }, "No violation reported for TrustedHTML.");
+
+    promise_test(async t => {
+      let violation = await trusted_type_violation_for(TypeError, _ =>
+        createShadowRoot().innerHTML = input
+      );
+      assert_equals(violation.blockedURI, "trusted-types-sink");
+      assert_equals(violation.sample, `ShadowRoot innerHTML|${clipSampleIfNeeded(input)}`);
+    }, "Violation report for plain string.");
+  </script>
+</body>
diff --git a/tests/wpt/tests/trusted-types/trusted-types-reporting-for-ShadowRoot-setHTMLUnsafe.html b/tests/wpt/tests/trusted-types/trusted-types-reporting-for-ShadowRoot-setHTMLUnsafe.html
new file mode 100644
index 00000000000..b65261d0e38
--- /dev/null
+++ b/tests/wpt/tests/trusted-types/trusted-types-reporting-for-ShadowRoot-setHTMLUnsafe.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="support/csp-violations.js"></script>
+<meta http-equiv="Content-Security-Policy"
+      content="require-trusted-types-for 'script'; connect-src 'none';">
+<body>
+  <script>
+    const policy = trustedTypes.createPolicy("dummy", { createHTML: x => x });
+    const input = `<p>${'A'.repeat(100)}</p>`;
+    function createShadowRoot() {
+      return document.createElement('div').attachShadow({mode: 'open'});
+    }
+
+    promise_test(async t => {
+      await no_trusted_type_violation_for(_ =>
+        createShadowRoot().setHTMLUnsafe(policy.createHTML(input))
+      );
+    }, "No violation reported for TrustedHTML.");
+
+    promise_test(async t => {
+      let violation = await trusted_type_violation_for(TypeError, _ =>
+        createShadowRoot().setHTMLUnsafe(input)
+      );
+      assert_equals(violation.blockedURI, "trusted-types-sink");
+      assert_equals(violation.sample, `ShadowRoot setHTMLUnsafe|${clipSampleIfNeeded(input)}`);
+    }, "Violation report for plain string.");
+  </script>
+</body>
diff --git a/tests/wpt/tests/trusted-types/trusted-types-reporting.html b/tests/wpt/tests/trusted-types/trusted-types-reporting.html
index 2ea5855e054..1649e46d0d5 100644
--- a/tests/wpt/tests/trusted-types/trusted-types-reporting.html
+++ b/tests/wpt/tests/trusted-types/trusted-types-reporting.html
@@ -7,8 +7,6 @@
 </head>
 <body>
   <!-- Some elements for the tests to act on. -->
-  <div id="div"></div>
-  <script id="script"></script>
   <script id="customscript" is="custom-script" src="a"></script>
   <svg><script id="svgscript"></script></svg>
   <script>
@@ -18,13 +16,13 @@
   //
   //   Content-Security-Policy: trusted-types one
   //   Content-Security-Policy-Report-Only: trusted-types two; report-uri ...
-  //   Content-Security-Policy: object-src 'none'
+  //   Content-Security-Policy: connect-src 'none'
   //   Content-Security-Policy: default-src * 'unsafe-inline'
   //
   // The third rule is there so we can provoke a CSP violation report at will.
   // The intent is that in order to test that a violation has *not* been thrown
   // (and without resorting to abominations like timeouts), we force a *another*
-  // CSP violation (by violating the object-src rule) and when that event is
+  // CSP violation (by violating the connect-src rule) and when that event is
   // processed we can we sure that an earlier event - if it indeed occurred -
   // must have already been processed.
   //
@@ -84,80 +82,6 @@
     assert_equals(violation.blockedURI, "trusted-types-policy");
   }, "Trusted Type violation report: creating a forbidden-but-not-reported policy.");
 
-  promise_test(async t => {
-    let violation = await trusted_type_violation_for(TypeError, _ =>
-      document.getElementById("div").insertAdjacentHTML("beforebegin", "x")
-    );
-    assert_true(violation.originalPolicy.includes("require-trusted-types-for 'script'"));
-    assert_equals(violation.blockedURI, "trusted-types-sink");
-  }, "Trusted Type violation report: blocked URI and sample for insertAdjacentHTML");
-
-  promise_test(async t => {
-    let violation = await trusted_type_violation_for(TypeError, _ =>
-      document.getElementById("script").src = url
-    );
-    assert_true(violation.originalPolicy.includes("require-trusted-types-for 'script'"));
-  }, "Trusted Type violation report: assign string to script url");
-
-  promise_test(async t => {
-    let violation = await trusted_type_violation_for(TypeError, _ =>
-      document.getElementById("div").innerHTML = "abc"
-    );
-    assert_true(violation.originalPolicy.includes("require-trusted-types-for 'script'"));
-  }, "Trusted Type violation report: assign string to html");
-
-  promise_test(async t => {
-    await no_trusted_type_violation_for(_ =>
-      document.getElementById("script").text = policy_one.createScript("2+2;")
-    );
-  }, "Trusted Type violation report: assign trusted script to script; no report");
-
-  promise_test(async t => {
-    await no_trusted_type_violation_for(_ =>
-      document.getElementById("div").innerHTML = policy_one.createHTML("abc")
-    );
-  }, "Trusted Type violation report: assign trusted HTML to html; no report");
-
-  promise_test(async t => {
-    const input = "abc";
-    let violation = await trusted_type_violation_for(TypeError, _ =>
-      document.getElementById("div").innerHTML = input
-    );
-    assert_true(violation.originalPolicy.includes("require-trusted-types-for 'script'"));
-    assert_equals(violation.blockedURI, "trusted-types-sink");
-    assert_equals(violation.sample, `Element innerHTML|${clipSampleIfNeeded(input)}`);
-  }, "Trusted Type violation report: sample for innerHTML assignment");
-
-  promise_test(async t => {
-    const input = "1+2;";
-    let violation = await trusted_type_violation_for(TypeError, _ =>
-      document.getElementById("script").text = input
-    );
-    assert_true(violation.originalPolicy.includes("require-trusted-types-for 'script'"));
-    assert_equals(violation.blockedURI, "trusted-types-sink");
-    assert_equals(violation.sample, `HTMLScriptElement text|${clipSampleIfNeeded(input)}`);
-  }, "Trusted Type violation report: sample for text assignment");
-
-  promise_test(async t => {
-    const input = "about:blank";
-    let violation = await trusted_type_violation_for(TypeError, _ =>
-      document.getElementById("script").src = input
-    );
-    assert_true(violation.originalPolicy.includes("require-trusted-types-for 'script'"));
-    assert_equals(violation.blockedURI, "trusted-types-sink");
-    assert_equals(violation.sample, `HTMLScriptElement src|${clipSampleIfNeeded(input)}`);
-  }, "Trusted Type violation report: sample for script.src assignment");
-
-  promise_test(async t => {
-    const input = "2+2;";
-    let violation = await trusted_type_violation_for(TypeError, _ =>
-      document.getElementById("script").innerText = "2+2;"
-    );
-    assert_true(violation.originalPolicy.includes("require-trusted-types-for 'script'"));
-    assert_equals(violation.blockedURI, "trusted-types-sink");
-    assert_equals(violation.sample, `HTMLScriptElement innerText|${clipSampleIfNeeded(input)}`);
-  }, "Trusted Type violation report: sample for script innerText assignment");
-
   promise_test(async t => {
     const input = "about:blank";
     let violation = await trusted_type_violation_for(TypeError, _ =>
@@ -198,18 +122,6 @@
     assert_equals(violation.sample, `eval|${clipSampleIfNeeded(input)}`);
   }, "Trusted Type violation report: sample for eval");
 
-  promise_test(async t => {
-    // We expect the sample string to always contain the name, and at least the
-    // start of the value, but it should not be excessively long.
-    const value = "a" + "b".repeat(50000);
-    let violation = await trusted_type_violation_for(TypeError, _ =>
-      document.getElementById("script").innerText = value
-    );
-    assert_true(violation.originalPolicy.includes("require-trusted-types-for 'script'"));
-    assert_equals(violation.blockedURI, "trusted-types-sink");
-    assert_equals(violation.sample, `HTMLScriptElement innerText|${clipSampleIfNeeded(value)}`);
-  }, "Trusted Type violation report: large values should be handled sanely.");
-
   // Test reporting for Custom Elements (where supported). The report should
   // refer to the DOM elements being modified, so that Custom Elements cannot
   // "mask" the underlying DOM mechanism (for reporting).
diff --git a/tests/wpt/tests/trusted-types/trusted-types-reporting.html.headers b/tests/wpt/tests/trusted-types/trusted-types-reporting.html.headers
index 31c8e413170..7076f4106f7 100644
--- a/tests/wpt/tests/trusted-types/trusted-types-reporting.html.headers
+++ b/tests/wpt/tests/trusted-types/trusted-types-reporting.html.headers
@@ -1,6 +1,6 @@
 Content-Security-Policy: trusted-types one
 Content-Security-Policy-Report-Only: trusted-types two; report-uri /content-security-policy/resources/dummy-report.php
-Content-Security-Policy: object-src 'none'
+Content-Security-Policy: connect-src 'none'
 Content-Security-Policy: default-src * 'unsafe-inline'
 Content-Security-Policy: require-trusted-types-for 'script'
 
diff --git a/tests/wpt/tests/trusted-types/trusted-types-source-file-path.html b/tests/wpt/tests/trusted-types/trusted-types-source-file-path.html
index edb1d5d68e9..105a04247f6 100644
--- a/tests/wpt/tests/trusted-types/trusted-types-source-file-path.html
+++ b/tests/wpt/tests/trusted-types/trusted-types-source-file-path.html
@@ -9,7 +9,7 @@
   <script src="./support/csp-violations.js"></script>
   <meta http-equiv="Content-Security-Policy"
         content="require-trusted-types-for 'script'; trusted-types id">
-  <meta http-equiv="Content-Security-Policy" content="object-src 'none'">
+  <meta http-equiv="Content-Security-Policy" content="connect-src 'none'">
   </head>
 <body>
 
diff --git a/tests/wpt/tests/trusted-types/trusted-types-svg-script-set-href.html b/tests/wpt/tests/trusted-types/trusted-types-svg-script-set-href.html
index f339ba119a1..3092fb41d81 100644
--- a/tests/wpt/tests/trusted-types/trusted-types-svg-script-set-href.html
+++ b/tests/wpt/tests/trusted-types/trusted-types-svg-script-set-href.html
@@ -6,7 +6,7 @@
   <script src="./support/namespaces.js"></script>
   <meta http-equiv="Content-Security-Policy"
         content="require-trusted-types-for 'script'">
-  <meta http-equiv="Content-Security-Policy" content="object-src 'none'">
+  <meta http-equiv="Content-Security-Policy" content="connect-src 'none'">
 </head>
 <body>
   <div id="log"></div>
diff --git a/tests/wpt/tests/trusted-types/trusted-types-svg-script.html b/tests/wpt/tests/trusted-types/trusted-types-svg-script.html
index 4fc3b710eb6..c08bdc0db87 100644
--- a/tests/wpt/tests/trusted-types/trusted-types-svg-script.html
+++ b/tests/wpt/tests/trusted-types/trusted-types-svg-script.html
@@ -5,7 +5,7 @@
   <script src="./support/csp-violations.js"></script>
   <meta http-equiv="Content-Security-Policy"
         content="require-trusted-types-for 'script'">
-  <meta http-equiv="Content-Security-Policy" content="object-src 'none'">
+  <meta http-equiv="Content-Security-Policy" content="connect-src 'none'">
 </head>
 <body>
   <div id="log"></div>
diff --git a/tests/wpt/tests/uievents/mouse/mousemove_after_mouseover_target_removed.html b/tests/wpt/tests/uievents/mouse/mousemove_after_mouseover_target_removed.html
new file mode 100644
index 00000000000..f84ba4ff5b7
--- /dev/null
+++ b/tests/wpt/tests/uievents/mouse/mousemove_after_mouseover_target_removed.html
@@ -0,0 +1,115 @@
+<!doctype html>
+<html>
+<head>
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale=1.0">
+<title>`mousemove` should be fired on the last deepest `mouseenter` target</title>
+<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>
+"use strict";
+
+addEventListener("DOMContentLoaded", () => {
+  const grandparentDiv = document.getElementById("grandparent");
+  let parentDiv = document.getElementById("parent");
+  let childDiv = document.getElementById("child");
+
+  promise_test(async () => {
+    const childRect = childDiv.getBoundingClientRect();
+    let mouseMoveTarget;
+    childDiv.addEventListener("mouseover", () => {
+      childDiv.remove();
+      grandparentDiv.addEventListener("mousemove", event => {
+        mouseMoveTarget = event.target;
+      }, {once: true});
+    }, {once: true});
+    await new test_driver.Actions()
+      .pointerMove(1, 1, {})
+      // mousemove will be fired after mouseover removes the child.
+      .pointerMove(childRect.x + childRect.width / 2, childRect.y + childRect.height / 2, {})
+      .send();
+    assert_equals(mouseMoveTarget, parentDiv);
+    await new test_driver.Actions()
+      .pointerMove(1, 1, {})
+      .send();
+    parentDiv.appendChild(childDiv);
+  }, `"mousemove" should be fired on the parent of "mouseover" target which was removed at "mouseover"`);
+
+  promise_test(async () => {
+    const childRect = childDiv.getBoundingClientRect();
+    let mouseMoveTarget;
+    childDiv.addEventListener("mouseover", () => {
+      childDiv.outerHTML = childDiv.outerHTML;
+      childDiv = parentDiv.querySelector("div");
+      grandparentDiv.addEventListener("mousemove", event => {
+        mouseMoveTarget = event.target;
+      }, {once: true});
+    }, {once: true});
+    await new test_driver.Actions()
+      .pointerMove(1, 1, {})
+      // mousemove will be fired after mouseover replaces the child.
+      .pointerMove(childRect.x + childRect.width / 2, childRect.y + childRect.height / 2, {})
+      .send();
+    assert_equals(mouseMoveTarget, parentDiv);
+    await new test_driver.Actions()
+      .pointerMove(1, 1, {})
+      .send();
+  }, `"mousemove" should be fired on the parent of "mouseover" target which was replaced at "mouseover" (rather than new child)`);
+
+  promise_test(async () => {
+    const childRect = childDiv.getBoundingClientRect();
+    let mouseMoveTarget;
+    childDiv.addEventListener("mouseover", () => {
+      parentDiv.remove();
+      grandparentDiv.addEventListener("mousemove", event => {
+        mouseMoveTarget = event.target;
+      }, {once: true});
+    }, {once: true});
+    await new test_driver.Actions()
+      .pointerMove(1, 1, {})
+      // mousemove will be fired after mouseover removes the child.
+      .pointerMove(childRect.x + childRect.width / 2, childRect.y + childRect.height / 2, {})
+      .send();
+    assert_equals(mouseMoveTarget, grandparentDiv);
+    await new test_driver.Actions()
+      .pointerMove(1, 1, {})
+      .send();
+    grandparentDiv.appendChild(parentDiv);
+  }, `"mousemove" should be fired on the grandparent of "mouseover" target which was removed at "mouseover" with the parent`);
+
+  promise_test(async () => {
+    const childRect = childDiv.getBoundingClientRect();
+    let mouseMoveTarget;
+    childDiv.addEventListener("mouseover", () => {
+      parentDiv.outerHTML = parentDiv.outerHTML;
+      parentDiv = grandparentDiv.querySelector("div");
+      grandparentDiv.addEventListener("mousemove", event => {
+        mouseMoveTarget = event.target;
+      }, {once: true});
+    }, {once: true});
+    await new test_driver.Actions()
+      .pointerMove(1, 1, {})
+      // mousemove will be fired after mouseover removes the child.
+      .pointerMove(childRect.x + childRect.width / 2, childRect.y + childRect.height / 2, {})
+      .send();
+    assert_equals(mouseMoveTarget, grandparentDiv);
+    await new test_driver.Actions()
+      .pointerMove(1, 1, {})
+      .send();
+  }, `"mousemove" should be fired on the grandparent of "mouseover" target which was replaced at "mouseover" with the parent`);
+}, {once: true});
+
+</script>
+</head>
+<body style="padding-top: 32px">
+  <div id="grandparent" style="width: 32px; height: 32px;">
+    <div id="parent" style="width: 32px; height: 32px;">
+      <div id="child" style="width: 32px; height: 32px;">
+      </div>
+    </div>
+  </div>
+</body>
+</html>
diff --git a/tests/wpt/tests/web-animations/timing-model/animations/reverse-running-animation.html b/tests/wpt/tests/web-animations/timing-model/animations/reverse-running-animation.html
index c9eb2a068e6..dc960400885 100644
--- a/tests/wpt/tests/web-animations/timing-model/animations/reverse-running-animation.html
+++ b/tests/wpt/tests/web-animations/timing-model/animations/reverse-running-animation.html
@@ -26,7 +26,7 @@
     const box = document.getElementById('box');
     const duration = 10000;
     const anim =
-        box.animate({ bacground: [ 'green', 'red' ] },
+        box.animate({ background: [ 'green', 'red' ] },
                     { duration: duration, easing: 'steps(2, jump-none)' });
     anim.currentTime = duration / 2;
     anim.ready.then(() => {
diff --git a/tests/wpt/tests/webdriver/tests/bidi/browsing_context/navigation_committed/__init__.py b/tests/wpt/tests/webdriver/tests/bidi/browsing_context/navigation_committed/__init__.py
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/tests/wpt/tests/webdriver/tests/bidi/browsing_context/navigation_committed/navigation_committed.py b/tests/wpt/tests/webdriver/tests/bidi/browsing_context/navigation_committed/navigation_committed.py
new file mode 100644
index 00000000000..fbe0705fc7b
--- /dev/null
+++ b/tests/wpt/tests/webdriver/tests/bidi/browsing_context/navigation_committed/navigation_committed.py
@@ -0,0 +1,517 @@
+import asyncio
+import pytest
+from tests.support.sync import AsyncPoll
+
+from webdriver.error import TimeoutException
+from webdriver.bidi.modules.script import ContextTarget
+
+from ... import int_interval
+from .. import assert_navigation_info
+
+
+pytestmark = pytest.mark.asyncio
+
+NAVIGATION_COMMITTED_EVENT = "browsingContext.navigationCommitted"
+PAGE_EMPTY = "/webdriver/tests/bidi/browsing_context/support/empty.html"
+PAGE_REDIRECT_HTTP_EQUIV = (
+    "/webdriver/tests/bidi/network/support/redirect_http_equiv.html"
+)
+PAGE_REDIRECTED_HTML = "/webdriver/tests/bidi/network/support/redirected.html"
+
+
+async def test_unsubscribe(bidi_session):
+    await bidi_session.session.subscribe(events=[NAVIGATION_COMMITTED_EVENT])
+    await bidi_session.session.unsubscribe(events=[NAVIGATION_COMMITTED_EVENT])
+
+    # Track all received browsingContext.navigationCommitted events in the events array
+    events = []
+
+    async def on_event(method, data):
+        events.append(data)
+
+    remove_listener = bidi_session.add_event_listener(
+        NAVIGATION_COMMITTED_EVENT, on_event
+    )
+
+    await bidi_session.browsing_context.create(type_hint="tab")
+
+    wait = AsyncPoll(bidi_session, timeout=0.5)
+    with pytest.raises(TimeoutException):
+        await wait.until(lambda _: len(events) > 0)
+
+    remove_listener()
+
+
+async def test_subscribe(
+    bidi_session, subscribe_events, inline, new_tab, wait_for_event, wait_for_future_safe
+):
+    await subscribe_events(events=[NAVIGATION_COMMITTED_EVENT])
+
+    on_entry = wait_for_event(NAVIGATION_COMMITTED_EVENT)
+    url = inline("<div>foo</div>")
+    result = await bidi_session.browsing_context.navigate(
+        context=new_tab["context"], url=url
+    )
+    event = await wait_for_future_safe(on_entry)
+
+    assert_navigation_info(
+        event,
+        {
+            "context": new_tab["context"],
+            "navigation": result["navigation"],
+            "url": url,
+        },
+    )
+
+
+async def test_timestamp(
+    bidi_session, current_time, subscribe_events, inline, new_tab, wait_for_event, wait_for_future_safe
+):
+    await subscribe_events(events=[NAVIGATION_COMMITTED_EVENT])
+
+    time_start = await current_time()
+
+    on_entry = wait_for_event(NAVIGATION_COMMITTED_EVENT)
+    url = inline("<div>foo</div>")
+    result = await bidi_session.browsing_context.navigate(
+        context=new_tab["context"], url=url
+    )
+    event = await wait_for_future_safe(on_entry)
+
+    time_end = await current_time()
+
+    assert_navigation_info(
+        event,
+        {
+            "context": new_tab["context"],
+            "navigation": result["navigation"],
+            "timestamp": int_interval(time_start, time_end),
+        },
+    )
+
+
+async def test_iframe(
+    bidi_session, subscribe_events, top_context, test_page_same_origin_frame, test_page
+):
+    events = []
+
+    async def on_event(method, data):
+        events.append(data)
+
+    remove_listener = bidi_session.add_event_listener(
+        NAVIGATION_COMMITTED_EVENT, on_event
+    )
+
+    await subscribe_events(events=[NAVIGATION_COMMITTED_EVENT])
+
+    result = await bidi_session.browsing_context.navigate(
+        context=top_context["context"], url=test_page_same_origin_frame, wait="complete"
+    )
+
+    # Wait until we receive two events, one for the top context and one for the
+    # iframe.
+    wait = AsyncPoll(bidi_session, timeout=2)
+    await wait.until(lambda _: len(events) >= 2)
+    assert len(events) == 2
+
+    contexts = await bidi_session.browsing_context.get_tree(root=top_context["context"])
+
+    assert len(contexts) == 1
+    root_info = contexts[0]
+    children_info = root_info["children"]
+    assert len(children_info) == 1
+
+    # First navigation-committed event comes from the top-level browsing context.
+    assert_navigation_info(
+        events[0],
+        {
+            "context": top_context["context"],
+            "navigation": result["navigation"],
+            "url": test_page_same_origin_frame,
+        },
+    )
+
+    assert_navigation_info(
+        events[1],
+        {
+            "context": children_info[0]["context"],
+            "url": test_page,
+        },
+    )
+    assert events[1]["navigation"] is not None
+    assert events[1]["navigation"] != result["navigation"]
+
+    remove_listener()
+
+
+async def test_nested_iframes(
+    bidi_session,
+    subscribe_events,
+    top_context,
+    test_page_nested_frames,
+    test_page_same_origin_frame,
+    test_page,
+):
+    events = []
+
+    async def on_event(method, data):
+        events.append(data)
+
+    remove_listener = bidi_session.add_event_listener(
+        NAVIGATION_COMMITTED_EVENT, on_event
+    )
+
+    await subscribe_events(events=[NAVIGATION_COMMITTED_EVENT])
+
+    result = await bidi_session.browsing_context.navigate(
+        context=top_context["context"], url=test_page_nested_frames, wait="complete"
+    )
+
+    # Wait until we receive three events, one for the top context and one for
+    # each of the 2 iframes.
+    wait = AsyncPoll(bidi_session, timeout=2)
+    await wait.until(lambda _: len(events) >= 3)
+    assert len(events) == 3
+
+    contexts = await bidi_session.browsing_context.get_tree(root=top_context["context"])
+
+    assert len(contexts) == 1
+    root_info = contexts[0]
+    assert len(root_info["children"]) == 1
+    child1_info = root_info["children"][0]
+    assert len(child1_info["children"]) == 1
+    child2_info = child1_info["children"][0]
+
+    assert_navigation_info(
+        events[0],
+        {
+            "context": root_info["context"],
+            "navigation": result["navigation"],
+            "url": test_page_nested_frames,
+        },
+    )
+
+    assert_navigation_info(
+        events[1],
+        {
+            "context": child1_info["context"],
+            "url": test_page_same_origin_frame,
+        },
+    )
+    assert events[1]["navigation"] is not None
+    assert events[1]["navigation"] != result["navigation"]
+
+    assert_navigation_info(
+        events[2],
+        {
+            "context": child2_info["context"],
+            "url": test_page,
+        },
+    )
+    assert events[2]["navigation"] is not None
+    assert events[2]["navigation"] != result["navigation"]
+    assert events[2]["navigation"] != events[1]["navigation"]
+
+    remove_listener()
+
+
+async def test_same_document(bidi_session, new_tab, url, subscribe_events):
+    await bidi_session.browsing_context.navigate(
+        context=new_tab["context"], url=url(PAGE_EMPTY), wait="complete"
+    )
+
+    await subscribe_events(events=[NAVIGATION_COMMITTED_EVENT])
+
+    # Track all received browsingContext.navigationCommitted events in the events array
+    events = []
+
+    async def on_event(method, data):
+        events.append(data)
+
+    remove_listener = bidi_session.add_event_listener(
+        NAVIGATION_COMMITTED_EVENT, on_event
+    )
+
+    await bidi_session.browsing_context.navigate(
+        context=new_tab["context"], url=url(PAGE_EMPTY + "#foo"), wait="complete"
+    )
+
+    wait = AsyncPoll(bidi_session, timeout=0.5)
+    with pytest.raises(TimeoutException):
+        await wait.until(lambda _: len(events) > 0)
+
+    remove_listener()
+
+
+@pytest.mark.parametrize("sandbox", [None, "sandbox_1"])
+async def test_document_write(bidi_session, subscribe_events, new_tab, sandbox):
+    await subscribe_events(events=[NAVIGATION_COMMITTED_EVENT])
+
+    # Track all received browsingContext.navigationCommitted events in the events array
+    events = []
+
+    async def on_event(method, data):
+        events.append(data)
+
+    remove_listener = bidi_session.add_event_listener(
+        NAVIGATION_COMMITTED_EVENT, on_event
+    )
+
+    await bidi_session.script.evaluate(
+        expression="""document.open(); document.write("<h1>Replaced</h1>"); document.close();""",
+        target=ContextTarget(new_tab["context"], sandbox),
+        await_promise=False,
+    )
+
+    wait = AsyncPoll(bidi_session, timeout=0.5)
+    with pytest.raises(TimeoutException):
+        await wait.until(lambda _: len(events) > 0)
+
+    remove_listener()
+
+
+async def test_base_element(
+    bidi_session, subscribe_events, inline, new_tab, wait_for_event, wait_for_future_safe
+):
+    await subscribe_events(events=[NAVIGATION_COMMITTED_EVENT])
+
+    on_entry = wait_for_event(NAVIGATION_COMMITTED_EVENT)
+    url = inline("""<base href="/relative-path">""")
+    result = await bidi_session.browsing_context.navigate(
+        context=new_tab["context"], url=url
+    )
+    event = await wait_for_future_safe(on_entry)
+
+    assert_navigation_info(
+        event,
+        {"context": new_tab["context"], "navigation": result["navigation"], "url": url},
+    )
+
+
+async def test_redirect_http_equiv(
+    bidi_session, subscribe_events, top_context, url
+):
+    await subscribe_events(events=[NAVIGATION_COMMITTED_EVENT])
+
+    # Track all received browsingContext.navigationCommitted events in the events array
+    events = []
+
+    async def on_event(method, data):
+        events.append(data)
+
+    remove_listener = bidi_session.add_event_listener(
+        NAVIGATION_COMMITTED_EVENT, on_event
+    )
+
+    # PAGE_REDIRECT_HTTP_EQUIV should redirect to PAGE_REDIRECTED_HTML immediately
+    http_equiv_url = url(PAGE_REDIRECT_HTTP_EQUIV)
+    redirected_url = url(PAGE_REDIRECTED_HTML)
+
+    await bidi_session.browsing_context.navigate(
+        context=top_context["context"],
+        url=http_equiv_url,
+        wait="complete",
+    )
+
+    # Wait until we receive two events, one for the initial navigation and one
+    # for the http-equiv "redirect".
+    wait = AsyncPoll(bidi_session, timeout=2)
+    await wait.until(lambda _: len(events) >= 2)
+    assert len(events) == 2
+
+    assert_navigation_info(
+        events[0],
+        {
+            "context": top_context["context"],
+            "url": http_equiv_url,
+        },
+    )
+    assert_navigation_info(
+        events[1],
+        {
+            "context": top_context["context"],
+            "url": redirected_url,
+        },
+    )
+
+    remove_listener()
+
+
+async def test_redirect_navigation(
+    bidi_session, subscribe_events, top_context, url
+):
+    await subscribe_events(events=[NAVIGATION_COMMITTED_EVENT])
+
+    # Track all received browsingContext.navigationCommitted events in the events array
+    events = []
+
+    async def on_event(method, data):
+        events.append(data)
+
+    remove_listener = bidi_session.add_event_listener(
+        NAVIGATION_COMMITTED_EVENT, on_event
+    )
+
+    html_url = url(PAGE_EMPTY)
+    redirect_url = url(
+        f"/webdriver/tests/support/http_handlers/redirect.py?location={html_url}"
+    )
+
+    await bidi_session.browsing_context.navigate(
+        context=top_context["context"],
+        url=redirect_url,
+        wait="complete",
+    )
+
+    assert len(events) == 1
+    assert_navigation_info(
+        events[0],
+        {
+            "context": top_context["context"],
+            "url": redirect_url,
+        },
+    )
+
+    remove_listener()
+
+
+async def test_navigate_history_pushstate(
+    bidi_session, inline, new_tab, subscribe_events, wait_for_event, wait_for_future_safe
+):
+    await subscribe_events([NAVIGATION_COMMITTED_EVENT])
+
+    # Track all received browsingContext.navigationCommitted events in the events array
+    events = []
+
+    async def on_event(method, data):
+        events.append(data)
+
+    remove_listener = bidi_session.add_event_listener(
+        NAVIGATION_COMMITTED_EVENT, on_event
+    )
+
+    url = inline("""
+        <script>
+            window.addEventListener('DOMContentLoaded', () => {
+                history.pushState({}, '', '#1');
+            });
+        </script>""")
+    result = await bidi_session.browsing_context.navigate(
+        context=new_tab["context"], url=url, wait="complete"
+    )
+
+    wait = AsyncPoll(bidi_session, timeout=0.5)
+    with pytest.raises(TimeoutException):
+        # Assert only a single event is emitted.
+        await wait.until(lambda _: len(events) > 1)
+
+    assert len(events) == 1
+    assert events[0]["navigation"] == result["navigation"]
+
+    remove_listener()
+
+
+@pytest.mark.parametrize("type_hint", ["tab", "window"])
+async def test_new_context(bidi_session, subscribe_events, type_hint):
+    await subscribe_events(events=[NAVIGATION_COMMITTED_EVENT])
+
+    # Track all received browsingContext.navigationCommitted events in the events array
+    events = []
+
+    async def on_event(method, data):
+        events.append(data)
+
+    remove_listener = bidi_session.add_event_listener(
+        NAVIGATION_COMMITTED_EVENT, on_event
+    )
+
+    await bidi_session.browsing_context.create(type_hint=type_hint)
+
+    # In the future we can wait for "browsingContext.contextCreated" event instead.
+    wait = AsyncPoll(bidi_session, timeout=0.5)
+    with pytest.raises(TimeoutException):
+        await wait.until(lambda _: len(events) > 0)
+
+    remove_listener()
+
+
+async def test_navigate_to_about_blank(
+    bidi_session, subscribe_events, new_tab, wait_for_event, wait_for_future_safe
+):
+    await subscribe_events(events=[NAVIGATION_COMMITTED_EVENT])
+
+    on_entry = wait_for_event(NAVIGATION_COMMITTED_EVENT)
+    url = "about:blank"
+    result = await bidi_session.browsing_context.navigate(
+        context=new_tab["context"], url=url
+    )
+    event = await wait_for_future_safe(on_entry)
+
+    assert_navigation_info(
+        event,
+        {
+            "context": new_tab["context"],
+            "navigation": result["navigation"],
+            "url": url,
+        },
+    )
+
+
+@pytest.mark.parametrize("url", ["", "about:blank", "about:blank?test"])
+async def test_window_open_with_about_blank(
+    bidi_session, subscribe_events, top_context, url
+):
+    await subscribe_events(events=[NAVIGATION_COMMITTED_EVENT])
+
+    # Track all received browsingContext.navigationCommitted events in the events array
+    events = []
+
+    async def on_event(method, data):
+        events.append(data)
+
+    remove_listener = bidi_session.add_event_listener(
+        NAVIGATION_COMMITTED_EVENT, on_event
+    )
+
+    await bidi_session.script.evaluate(
+        expression=f"window.open('{url}');",
+        target=ContextTarget(top_context["context"]),
+        await_promise=False,
+    )
+
+    wait = AsyncPoll(bidi_session, timeout=0.5)
+    with pytest.raises(TimeoutException):
+        await wait.until(lambda _: len(events) > 0)
+
+    remove_listener()
+
+
+async def test_window_open_with_url(
+    bidi_session,
+    subscribe_events,
+    top_context,
+    wait_for_event,
+    inline,
+    wait_for_future_safe,
+):
+    await subscribe_events(events=[NAVIGATION_COMMITTED_EVENT])
+    on_navigation_committed = wait_for_event(NAVIGATION_COMMITTED_EVENT)
+    url = inline("<div>foo</div>")
+
+    await bidi_session.script.evaluate(
+        expression=f"window.open('{url}');",
+        target=ContextTarget(top_context["context"]),
+        await_promise=False,
+    )
+
+    event = await wait_for_future_safe(on_navigation_committed)
+
+    result = await bidi_session.browsing_context.get_tree()
+
+    assert_navigation_info(
+        event,
+        {
+            "context": result[1]["context"],
+            "url": url,
+        },
+    )
diff --git a/tests/wpt/tests/webdriver/tests/bidi/script/add_preload_script/add_preload_script.py b/tests/wpt/tests/webdriver/tests/bidi/script/add_preload_script/add_preload_script.py
index cf5e77fac44..5e3e2d62ac1 100644
--- a/tests/wpt/tests/webdriver/tests/bidi/script/add_preload_script/add_preload_script.py
+++ b/tests/wpt/tests/webdriver/tests/bidi/script/add_preload_script/add_preload_script.py
@@ -170,3 +170,68 @@ async def test_page_script_can_access_preload_script_properties(
         await_promise=True,
     )
     assert result == {"type": "number", "value": 42}
+
+
+@pytest.mark.asyncio
+@pytest.mark.parametrize(
+    "types",
+    [
+        ("global", "userContexts", "contexts"),
+        ("global", "contexts", "userContexts"),
+        ("contexts", "global", "userContexts"),
+        ("contexts", "userContexts", "global"),
+        ("userContexts", "contexts", "global"),
+        ("userContexts", "global", "contexts"),
+    ],
+)
+async def test_add_preload_script_order_with_different_configuration(
+    bidi_session, add_preload_script, inline, create_user_context, types
+):
+
+    async def add_preload_script_of_type(type):
+        function_declaration = f"""() => {{
+            window.preloadScriptApplied = window.preloadScriptApplied || [];
+            window.preloadScriptApplied.push("{type}");
+        }}"""
+
+        if type == "global":
+            await add_preload_script(function_declaration=function_declaration)
+
+        elif type == "userContexts":
+            await add_preload_script(
+                function_declaration=function_declaration,
+                user_contexts=[user_context],
+            )
+
+        elif type == "contexts":
+            await add_preload_script(
+                function_declaration=function_declaration,
+                contexts=[new_context_in_user_context["context"]],
+            )
+
+    user_context = await create_user_context()
+    new_context_in_user_context = await bidi_session.browsing_context.create(
+        user_context=user_context, type_hint="tab"
+    )
+
+    for type in types:
+        await add_preload_script_of_type(type)
+
+    await bidi_session.browsing_context.navigate(
+        context=new_context_in_user_context["context"],
+        url=inline("<div>test</div>"),
+        wait="complete",
+    )
+
+    # Check that preload script was applied after navigation
+    result = await bidi_session.script.evaluate(
+        expression="window.preloadScriptApplied",
+        target=ContextTarget(new_context_in_user_context["context"]),
+        await_promise=True,
+    )
+
+    expected_result = {"type": "array", "value": []}
+    for type in types:
+        expected_result["value"].append({"type": "string", "value": type})
+
+    assert result == expected_result
diff --git a/tests/wpt/tests/webdriver/tests/bidi/script/add_preload_script/contexts.py b/tests/wpt/tests/webdriver/tests/bidi/script/add_preload_script/contexts.py
index 135cfb6016d..84b260b2d8a 100644
--- a/tests/wpt/tests/webdriver/tests/bidi/script/add_preload_script/contexts.py
+++ b/tests/wpt/tests/webdriver/tests/bidi/script/add_preload_script/contexts.py
@@ -109,3 +109,47 @@ async def test_identical_contexts(
         await_promise=True,
     )
     assert result == {"type": "number", "value": 1}
+
+
+@pytest.mark.asyncio
+async def test_contexts_and_user_contexts(bidi_session, add_preload_script, new_tab, inline, create_user_context):
+    user_context = await create_user_context()
+    context_in_user_context = await bidi_session.browsing_context.create(
+        user_context=user_context, type_hint="tab"
+    )
+    url = inline(f"<div>test</div>")
+
+    # user_contexts argument should be ignored if contexts argument is provided.
+    await add_preload_script(
+        function_declaration="() => { window.foo = 'bar'; }",
+        contexts=[new_tab["context"]],
+        user_contexts=[context_in_user_context]
+    )
+
+    # Navigate both contexts.
+    await bidi_session.browsing_context.navigate(
+        context=new_tab["context"],
+        url=url,
+        wait="complete",
+    )
+    await bidi_session.browsing_context.navigate(
+        context=context_in_user_context["context"],
+        url=url,
+        wait="complete",
+    )
+
+    # Check that preload script applied the changes to the specified context.
+    result = await bidi_session.script.evaluate(
+        expression="window.foo",
+        target=ContextTarget(new_tab["context"]),
+        await_promise=True,
+    )
+    assert result == {"type": "string", "value": "bar"}
+
+    # Check that preload script didn't apply the changes to the context in user context.
+    result = await bidi_session.script.evaluate(
+        expression="window.foo",
+        target=ContextTarget(context_in_user_context["context"]),
+        await_promise=True,
+    )
+    assert result == {"type": "undefined"}
diff --git a/tests/wpt/tests/webdriver/tests/bidi/script/add_preload_script/invalid.py b/tests/wpt/tests/webdriver/tests/bidi/script/add_preload_script/invalid.py
index 047496b4c21..9ea9a4442b0 100644
--- a/tests/wpt/tests/webdriver/tests/bidi/script/add_preload_script/invalid.py
+++ b/tests/wpt/tests/webdriver/tests/bidi/script/add_preload_script/invalid.py
@@ -266,3 +266,34 @@ async def test_params_sandbox_invalid_type(bidi_session, sandbox):
         await bidi_session.script.add_preload_script(
             function_declaration="() => {}", sandbox=sandbox
         ),
+
+
+@pytest.mark.parametrize("user_contexts", [False, 42, "_UNKNOWN_", {}])
+async def test_params_user_contexts_invalid_type(bidi_session, user_contexts):
+    with pytest.raises(error.InvalidArgumentException):
+        await bidi_session.script.add_preload_script(
+            function_declaration="() => {}", user_contexts=user_contexts
+        ),
+
+
+async def test_params_user_contexts_empty_list(bidi_session):
+    with pytest.raises(error.InvalidArgumentException):
+        await bidi_session.script.add_preload_script(
+            function_declaration="() => {}", user_contexts=[]
+        ),
+
+
+@pytest.mark.parametrize("value", [None, False, 42, {}, []])
+async def test_params_user_contexts_entry_invalid_type(bidi_session, value):
+    with pytest.raises(error.InvalidArgumentException):
+        await bidi_session.script.add_preload_script(
+            function_declaration="() => {}", user_contexts=[value]
+        ),
+
+
+@pytest.mark.parametrize("value", ["", "somestring"])
+async def test_params_user_contexts_entry_invalid_value(bidi_session, value):
+    with pytest.raises(error.NoSuchUserContextException):
+        await bidi_session.script.add_preload_script(
+            function_declaration="() => {}", user_contexts=[value]
+        ),
diff --git a/tests/wpt/tests/webdriver/tests/bidi/script/add_preload_script/user_contexts.py b/tests/wpt/tests/webdriver/tests/bidi/script/add_preload_script/user_contexts.py
new file mode 100644
index 00000000000..9a6bb45cc70
--- /dev/null
+++ b/tests/wpt/tests/webdriver/tests/bidi/script/add_preload_script/user_contexts.py
@@ -0,0 +1,116 @@
+import pytest
+
+from webdriver.bidi.modules.script import ContextTarget
+
+pytestmark = pytest.mark.asyncio
+
+
+async def test_add_preload_script_to_user_context(
+    bidi_session, add_preload_script, create_user_context, inline
+):
+    user_context = await create_user_context()
+    await add_preload_script(
+        function_declaration="() => { window.foo='bar'; }", user_contexts=[user_context]
+    )
+
+    new_context_1 = await bidi_session.browsing_context.create(
+        user_context=user_context, type_hint="tab"
+    )
+
+    # Check that preload script applied the changes to the tab in the user context.
+    result = await bidi_session.script.evaluate(
+        expression="window.foo",
+        target=ContextTarget(new_context_1["context"]),
+        await_promise=True,
+    )
+    assert result == {"type": "string", "value": "bar"}
+
+    url = inline("<div>foo</div>")
+    await bidi_session.browsing_context.navigate(
+        context=new_context_1["context"],
+        url=url,
+        wait="complete",
+    )
+
+    # Check that preload script was applied after navigation
+    result = await bidi_session.script.evaluate(
+        expression="window.foo",
+        target=ContextTarget(new_context_1["context"]),
+        await_promise=True,
+    )
+    assert result == {"type": "string", "value": "bar"}
+
+    # Create a new browsing context in the default user context.
+    new_context_2 = await bidi_session.browsing_context.create(type_hint="tab")
+
+    # Check that preload script didn't apply the changes to the tab in the default user context.
+    result = await bidi_session.script.evaluate(
+        expression="window.foo",
+        target=ContextTarget(new_context_2["context"]),
+        await_promise=True,
+    )
+    assert result == {"type": "undefined"}
+
+    await bidi_session.browsing_context.close(context=new_context_1["context"])
+    await bidi_session.browsing_context.close(context=new_context_2["context"])
+
+
+async def test_add_preload_script_to_multiple_user_contexts(
+    bidi_session, add_preload_script, create_user_context
+):
+    user_context_1 = await create_user_context()
+    user_context_2 = await create_user_context()
+
+    await add_preload_script(
+        function_declaration="() => { window.foo='bar'; }",
+        user_contexts=[user_context_1, user_context_2],
+    )
+
+    new_context_1 = await bidi_session.browsing_context.create(
+        user_context=user_context_1, type_hint="tab"
+    )
+    new_context_2 = await bidi_session.browsing_context.create(
+        user_context=user_context_2, type_hint="tab"
+    )
+
+    # Check that preload script applied the changes to the tabs in the both user contexts.
+    result_1 = await bidi_session.script.evaluate(
+        expression="window.foo",
+        target=ContextTarget(new_context_1["context"]),
+        await_promise=True,
+    )
+    assert result_1 == {"type": "string", "value": "bar"}
+
+    result_2 = await bidi_session.script.evaluate(
+        expression="window.foo",
+        target=ContextTarget(new_context_2["context"]),
+        await_promise=True,
+    )
+    assert result_2 == {"type": "string", "value": "bar"}
+
+    await bidi_session.browsing_context.close(context=new_context_1["context"])
+    await bidi_session.browsing_context.close(context=new_context_2["context"])
+
+
+async def test_identical_user_contexts(
+    bidi_session, add_preload_script, create_user_context
+):
+    user_context = await create_user_context()
+    await add_preload_script(
+        function_declaration="() => { window.foo = window.foo ? window.foo + 1 : 1; }",
+        user_contexts=[user_context, user_context],
+    )
+
+    new_context = await bidi_session.browsing_context.create(
+        user_context=user_context, type_hint="tab"
+    )
+
+    # Check that preload script applied the changes only once
+    result = await bidi_session.script.evaluate(
+        expression="window.foo",
+        target=ContextTarget(new_context["context"]),
+        await_promise=True,
+    )
+    assert result == {"type": "number", "value": 1}
+
+    await bidi_session.browsing_context.close(context=new_context["context"])
diff --git a/tests/wpt/tests/webdriver/tests/bidi/script/remove_preload_script/remove_preload_script.py b/tests/wpt/tests/webdriver/tests/bidi/script/remove_preload_script/remove_preload_script.py
index 2cf35fb9bb8..1d1a53f0ef3 100644
--- a/tests/wpt/tests/webdriver/tests/bidi/script/remove_preload_script/remove_preload_script.py
+++ b/tests/wpt/tests/webdriver/tests/bidi/script/remove_preload_script/remove_preload_script.py
@@ -118,3 +118,57 @@ async def test_remove_script_set_up_for_one_context(
         await_promise=True,
     )
     assert result == {"type": "undefined"}
+
+
+@pytest.mark.asyncio
+async def test_remove_script_set_up_for_user_context(
+    bidi_session, add_preload_script, new_tab, create_user_context, inline
+):
+    user_context = await create_user_context()
+    script = await add_preload_script(
+        function_declaration="() => { window.foo='bar'; }", user_contexts=[user_context]
+    )
+
+    new_context_1 = await bidi_session.browsing_context.create(
+        user_context=user_context, type_hint="tab"
+    )
+
+    # Check that preload script applied the changes to the context
+    result = await bidi_session.script.evaluate(
+        expression="window.foo",
+        target=ContextTarget(new_context_1["context"]),
+        await_promise=True,
+    )
+    assert result == {"type": "string", "value": "bar"}
+
+    await bidi_session.script.remove_preload_script(script=script)
+
+    # Navigate to see that preload script didn't run
+    await bidi_session.browsing_context.navigate(
+        context=new_context_1["context"],
+        url=inline("<div>test</div>"),
+        wait="complete",
+    )
+
+    result = await bidi_session.script.evaluate(
+        expression="window.foo",
+        target=ContextTarget(new_tab["context"]),
+        await_promise=True,
+    )
+    assert result == {"type": "undefined"}
+
+    # Check that another context created in the user context
+    # doesn't run preload script.
+    new_context_2 = await bidi_session.browsing_context.create(
+        user_context=user_context, type_hint="tab"
+    )
+
+    result = await bidi_session.script.evaluate(
+        expression="window.foo",
+        target=ContextTarget(new_context_2["context"]),
+        await_promise=True,
+    )
+    assert result == {"type": "undefined"}
+
+    await bidi_session.browsing_context.close(context=new_context_1["context"])
+    await bidi_session.browsing_context.close(context=new_context_2["context"])
diff --git a/tests/wpt/tests/webdriver/tests/bidi/session/subscribe/invalid.py b/tests/wpt/tests/webdriver/tests/bidi/session/subscribe/invalid.py
index e553a2e501e..850c71b51fc 100644
--- a/tests/wpt/tests/webdriver/tests/bidi/session/subscribe/invalid.py
+++ b/tests/wpt/tests/webdriver/tests/bidi/session/subscribe/invalid.py
@@ -2,7 +2,7 @@ import asyncio
 
 import pytest
 
-from webdriver.bidi.error import InvalidArgumentException, NoSuchFrameException
+from webdriver.bidi.error import InvalidArgumentException, NoSuchFrameException, NoSuchUserContextException
 
 from ... import create_console_api_message
 
@@ -130,3 +130,45 @@ async def test_subscribe_to_closed_tab(bidi_session):
     # Try to subscribe to the closed context
     with pytest.raises(NoSuchFrameException):
         await bidi_session.session.subscribe(events=["log.entryAdded"], contexts=[new_tab["context"]])
+
+
+@pytest.mark.asyncio
+@pytest.mark.parametrize("value", [True, "foo", 42, {}])
+async def test_params_user_context_invalid_type(bidi_session, value):
+    with pytest.raises(InvalidArgumentException):
+        await bidi_session.session.subscribe(events=["browsingContext.load"], user_contexts=value)
+
+
+@pytest.mark.asyncio
+async def test_params_user_context_empty(bidi_session):
+    with pytest.raises(InvalidArgumentException):
+        await bidi_session.session.subscribe(events=["browsingContext.load"], user_contexts=[])
+
+
+@pytest.mark.asyncio
+@pytest.mark.parametrize("value", [None, True, 42, [], {}])
+async def test_params_user_context_value_invalid_type(bidi_session, value):
+    with pytest.raises(InvalidArgumentException):
+        await bidi_session.session.subscribe(events=["browsingContext.load"], user_contexts=[value])
+
+
+@pytest.mark.asyncio
+async def test_params_user_context_value_invalid_value(bidi_session):
+    with pytest.raises(NoSuchUserContextException):
+        await bidi_session.session.subscribe(events=["browsingContext.load"], user_contexts=["foo"])
+
+
+@pytest.mark.asyncio
+async def test_params_user_context_and_contexts(bidi_session, top_context):
+    with pytest.raises(InvalidArgumentException):
+        await bidi_session.session.subscribe(events=["browsingContext.load"], user_contexts=["default"], contexts=[top_context["context"]])
+
+
+@pytest.mark.asyncio
+async def test_subscribe_to_closed_user_context(bidi_session, create_user_context):
+    user_context = await create_user_context()
+    await bidi_session.browser.remove_user_context(user_context=user_context)
+
+    # Try to subscribe to closed user context.
+    with pytest.raises(NoSuchUserContextException):
+        await bidi_session.session.subscribe(events=["log.entryAdded"], user_contexts=[user_context])
diff --git a/tests/wpt/tests/webdriver/tests/support/fixtures_bidi.py b/tests/wpt/tests/webdriver/tests/support/fixtures_bidi.py
index ec36eb953ff..a9a6a0dd804 100644
--- a/tests/wpt/tests/webdriver/tests/support/fixtures_bidi.py
+++ b/tests/wpt/tests/webdriver/tests/support/fixtures_bidi.py
@@ -30,12 +30,13 @@ from webdriver.error import TimeoutException
 async def add_preload_script(bidi_session):
     preload_scripts_ids = []
 
-    async def add_preload_script(function_declaration, arguments=None, contexts=None, sandbox=None):
+    async def add_preload_script(function_declaration, arguments=None, contexts=None, sandbox=None, user_contexts=None):
         script = await bidi_session.script.add_preload_script(
             function_declaration=function_declaration,
             arguments=arguments,
             contexts=contexts,
             sandbox=sandbox,
+            user_contexts=user_contexts
         )
         preload_scripts_ids.append(script)
 
diff --git a/tests/wpt/tests/webrtc-encoded-transform/tentative/RTCEncodedAudioFrame-metadata.https.html b/tests/wpt/tests/webrtc-encoded-transform/tentative/RTCEncodedAudioFrame-metadata.https.html
index 609467b5e3e..435e1c06783 100644
--- a/tests/wpt/tests/webrtc-encoded-transform/tentative/RTCEncodedAudioFrame-metadata.https.html
+++ b/tests/wpt/tests/webrtc-encoded-transform/tentative/RTCEncodedAudioFrame-metadata.https.html
@@ -36,8 +36,11 @@ promise_test(async t => {
       const result = await receiverReader.read();
       const original = result.value;
       let newFrame = new RTCEncodedAudioFrame(original);
+      assert_true(original.getMetadata().hasOwnProperty('receiveTime'));
+      assert_true(original.getMetadata().receiveTime > 0);
       assert_equals(original.getMetadata().rtpTimestamp, newFrame.getMetadata().rtpTimestamp);
       assert_equals(original.getMetadata().absCaptureTime, newFrame.getMetadata().absCaptureTime);
+      assert_equals(original.getMetadata().receiveTime, newFrame.getMetadata().receiveTime);
       assert_array_equals(Array.from(original.data), Array.from(newFrame.data));
       await writer2.write(newFrame);
       resolve();
@@ -79,6 +82,7 @@ promise_test(async t => {
       let newFrame = new RTCEncodedAudioFrame(original, {metadata: newMetadata});
       assert_not_equals(original.getMetadata().rtpTimestamp, newFrame.getMetadata().rtpTimestamp);
       assert_equals(newMetadata.rtpTimestamp, newFrame.getMetadata().rtpTimestamp);
+      assert_equals(original.getMetadata().receiveTime, newFrame.getMetadata().receiveTime);
       assert_equals(original.getMetadata().absCaptureTime, newFrame.getMetadata().absCaptureTime);
       assert_array_equals(Array.from(original.data), Array.from(newFrame.data));
       await writer2.write(newFrame);
diff --git a/tests/wpt/tests/webrtc/simulcast/av1.https.html b/tests/wpt/tests/webrtc/simulcast/av1.https.html
new file mode 100644
index 00000000000..bcad048d7af
--- /dev/null
+++ b/tests/wpt/tests/webrtc/simulcast/av1.https.html
@@ -0,0 +1,27 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>RTCPeerConnection Simulcast Tests</title>
+<meta name="timeout" content="long">
+<script src="../third_party/sdp/sdp.js"></script>
+<script src="simulcast.js"></script>
+<script src="../RTCPeerConnection-helper.js"></script>
+<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="../../mediacapture-streams/permission-helper.js"></script>
+<script>
+promise_test(async t => {
+  assert_implements('getCapabilities' in RTCRtpSender, 'RTCRtpSender.getCapabilities not supported');
+  assert_implements_optional(RTCRtpSender.getCapabilities('video').codecs.find(c => c.mimeType === 'video/AV1'), 'AV1 not supported');
+
+  const rids = [0, 1];
+  const pc1 = new RTCPeerConnection();
+  t.add_cleanup(() => pc1.close());
+  const pc2 = new RTCPeerConnection();
+  t.add_cleanup(() => pc2.close());
+
+  return negotiateSimulcastAndWaitForVideo(t, await getCameraStream(t), rids, pc1, pc2,
+                                           {mimeType: 'video/AV1'});
+}, 'AV1 simulcast setup with two streams');
+</script>
diff --git a/tests/wpt/tests/webrtc/simulcast/setParameters-maxFramerate.https.html b/tests/wpt/tests/webrtc/simulcast/setParameters-maxFramerate.https.html
index a1a167e0592..ebd2a22fbda 100644
--- a/tests/wpt/tests/webrtc/simulcast/setParameters-maxFramerate.https.html
+++ b/tests/wpt/tests/webrtc/simulcast/setParameters-maxFramerate.https.html
@@ -105,6 +105,6 @@ promise_test(async t => {
     framerates.push(actualFramerate);
   });
   // Assert that the framerates are ordered as configured.
-  assert_equals(framerates, framerates.sort());
+  assert_array_equals(framerates, framerates.toSorted((a, b) => a < b));
 }, 'Simulcast setParameters maxFramerate reduces the framerate');
 </script>
diff --git a/tests/wpt/tests/webrtc/simulcast/vp9-scalability-mode.https.html b/tests/wpt/tests/webrtc/simulcast/vp9-scalability-mode.https.html
index 1c2d48c5dc4..55d43495e4d 100644
--- a/tests/wpt/tests/webrtc/simulcast/vp9-scalability-mode.https.html
+++ b/tests/wpt/tests/webrtc/simulcast/vp9-scalability-mode.https.html
@@ -13,7 +13,7 @@
 <script>
 promise_test(async t => {
   assert_implements('getCapabilities' in RTCRtpSender, 'RTCRtpSender.getCapabilities not supported');
-  assert_implements(RTCRtpSender.getCapabilities('video').codecs.find(c => c.mimeType.toLowerCase() === 'video/vP9'), 'VP9 not supported');
+  assert_implements_optional(RTCRtpSender.getCapabilities('video').codecs.find(c => c.mimeType.toLowerCase() === 'video/vp9'), 'VP9 not supported');
 
   const rids = [0, 1];
   const pc1 = new RTCPeerConnection();
diff --git a/tests/wpt/tests/webrtc/simulcast/vp9.https.html b/tests/wpt/tests/webrtc/simulcast/vp9.https.html
index d366120b6e8..b7ef90e6522 100644
--- a/tests/wpt/tests/webrtc/simulcast/vp9.https.html
+++ b/tests/wpt/tests/webrtc/simulcast/vp9.https.html
@@ -13,7 +13,7 @@
 <script>
 promise_test(async t => {
   assert_implements('getCapabilities' in RTCRtpSender, 'RTCRtpSender.getCapabilities not supported');
-  assert_implements(RTCRtpSender.getCapabilities('video').codecs.find(c => c.mimeType === 'video/VP9'), 'VP9 not supported');
+  assert_implements_optional(RTCRtpSender.getCapabilities('video').codecs.find(c => c.mimeType === 'video/VP9'), 'VP9 not supported');
 
   const rids = [0, 1];
   const pc1 = new RTCPeerConnection();
diff --git a/tests/wpt/webgl/meta/conformance/textures/misc/texture-upload-size.html.ini b/tests/wpt/webgl/meta/conformance/textures/misc/texture-upload-size.html.ini
index 2208f9c110d..53acd13e3db 100644
--- a/tests/wpt/webgl/meta/conformance/textures/misc/texture-upload-size.html.ini
+++ b/tests/wpt/webgl/meta/conformance/textures/misc/texture-upload-size.html.ini
@@ -112,3 +112,6 @@
 
   [WebGL test #82: Texture was smaller than the expected size 0x0]
     expected: FAIL
+
+  [WebGL test #76: could not create image (SVG)]
+    expected: FAIL