From c593e15fa85ed9f447d890422f51878eac17c034 Mon Sep 17 00:00:00 2001
From: Servo WPT Sync <32481905+servo-wpt-sync@users.noreply.github.com>
Date: Sun, 30 Mar 2025 03:40:11 +0200
Subject: [PATCH] Update web-platform-tests to revision
 b'efce5c7cd31b0e1add4f41758504c767b56abeed' (#36222)

Signed-off-by: WPT Sync Bot <ghbot+wpt-sync@servo.org>
---
 tests/wpt/meta/MANIFEST.json                  | 933 +++++++++++++++++-
 .../flex/flex-gap-decorations-001.html.ini    |   2 +
 .../flex/flex-gap-decorations-002.html.ini    |   2 +
 .../flex/flex-gap-decorations-003.html.ini    |   2 +
 .../flex/flex-gap-decorations-004.html.ini    |   2 +
 .../flex/flex-gap-decorations-005.html.ini    |   2 +
 .../flex/flex-gap-decorations-006.html.ini    |   2 +
 .../flex/flex-gap-decorations-007.html.ini    |   2 +
 .../flex/flex-gap-decorations-008.html.ini    |   2 +
 .../flex/flex-gap-decorations-009.html.ini    |   2 +
 .../flex/flex-gap-decorations-010.html.ini    |   2 +
 .../flex/flex-gap-decorations-011.html.ini    |   2 +
 .../flex/flex-gap-decorations-013.html.ini    |   2 +
 .../flex/flex-gap-decorations-014.html.ini    |   2 +
 .../flex/flex-gap-decorations-015.html.ini    |   2 +
 ...content-alignment-with-abspos-001.html.ini |   3 -
 .../gradient/gradient-infinity-001.html.ini   |   2 +
 .../gradient/gradient-infinity-002.html.ini   |   2 +
 ...ized-payload.tentative.https.window.js.ini |   1 -
 .../navigating-across-documents/009.html.ini  |   3 +
 ...ation-unload-same-origin-fragment.html.ini |   3 -
 ...pushstate_too_many_calls.optional.html.ini |   3 +
 ...lacestate_too_many_calls.optional.html.ini |   3 +
 .../createImageBitmap-transfer.html.ini       |   2 +-
 .../2d.canvas.host.size.large.html.ini        |   2 +
 .../2d.canvas.host.size.large.worker.js.ini   |   2 +
 ...edentialless.https.tentative.window.js.ini |  54 +
 ...ge-from-none.https.tentative.window.js.ini |  90 ++
 ...require-corp.https.tentative.window.js.ini |  42 +
 ...ache-storage.https.tentative.window.js.ini | 137 ---
 ...-subresource-corp.tentative.https.html.ini |  13 +-
 ...rame_sandbox_popups_nonescaping-2.html.ini |   2 +-
 .../detector.https.tentative.any.js           |   8 +
 ...ement-background-contain-hidden-crash.html |  11 +
 .../css/css-align/blocks/WEB_FEATURES.yml     |   4 +
 .../css-anchor-position/anchor-css-zoom.html  |  97 ++
 .../anchor-size-css-zoom.html                 |  49 +
 .../reference/anchor-css-zoom-ref.html        |  67 ++
 .../reference/anchor-size-css-zoom-ref.html   |  36 +
 ...verflow-hidden-invisible-anchor-crash.html |  28 +
 .../css/css-flexbox/flex-shorthand-calc.html  |   2 +-
 .../gap-decorations-001-ref.html}             |   0
 .../flex/flex-gap-decorations-001.html        |  37 +
 .../flex/flex-gap-decorations-002.html        |  39 +
 .../flex/flex-gap-decorations-003-ref.html    |  79 ++
 .../flex/flex-gap-decorations-003.html        |  49 +
 .../flex/flex-gap-decorations-004-ref.html    |  80 ++
 .../flex/flex-gap-decorations-004.html        |  49 +
 .../flex/flex-gap-decorations-005-ref.html    |  80 ++
 .../flex/flex-gap-decorations-005.html        |  49 +
 .../flex/flex-gap-decorations-006-ref.html    |  65 ++
 .../flex/flex-gap-decorations-006.html        |  49 +
 .../flex/flex-gap-decorations-007-ref.html    |  50 +
 .../flex/flex-gap-decorations-007.html        |  43 +
 .../flex/flex-gap-decorations-008-ref.html    |  63 ++
 .../flex/flex-gap-decorations-008.html        |  43 +
 .../flex/flex-gap-decorations-009-ref.html    |  95 ++
 .../flex/flex-gap-decorations-009.html        |  53 +
 .../flex/flex-gap-decorations-010-ref.html    |  82 ++
 .../flex/flex-gap-decorations-010.html        |  51 +
 .../flex/flex-gap-decorations-011-ref.html    |  79 ++
 .../flex/flex-gap-decorations-011.html        |  51 +
 .../flex/flex-gap-decorations-013-ref.html    |  79 ++
 .../flex/flex-gap-decorations-013.html        |  51 +
 .../flex/flex-gap-decorations-014-ref.html    |  79 ++
 .../flex/flex-gap-decorations-014.html        |  51 +
 .../flex/flex-gap-decorations-015.html        |  46 +
 .../grid/grid-gap-decorations-002.html        |   2 +-
 .../gradient/gradient-infinity-001-ref.html   |  25 +
 .../gradient/gradient-infinity-001.html       |  40 +
 .../gradient/gradient-infinity-002-ref.html   |  25 +
 .../gradient/gradient-infinity-002.html       |  41 +
 ...r-gutter-with-background-gradient-ref.html |  13 +
 ...llbar-gutter-with-background-gradient.html |  13 +
 .../ruby-inlinize-fieldset-crash.html         |   8 +
 .../tests/css/css-typed-om/WEB_FEATURES.yml   |   6 +
 .../tests/css/css-ui/cursor-calc-hotspot.html |  24 +-
 .../css/css-view-transitions/WEB_FEATURES.yml |   4 +
 .../active-view-transition-on-non-root.html   |   5 +-
 ...tive-view-transition-type-on-non-root.html |   5 +-
 .../navigation/WEB_FEATURES.yml               |   3 +
 .../nested-root-capture-with-clip-ref.html    |   1 +
 .../nested/nested-root-capture-with-clip.html |   7 +-
 .../parsing/WEB_FEATURES.yml                  |   4 +
 .../pseudo-rendering-invalidation.html        |   7 +-
 ...tion-types-matches-case-sensitive-ref.html |  22 +
 ...ansition-types-matches-case-sensitive.html |  76 ++
 .../scripts/playback-temporary-events.js      |   2 +-
 .../tentative/resources/additional-bids.py    |   2 +-
 .../tentative/resources/bidding-logic.sub.py  |   2 +-
 .../resources/fledge_http_server_util.py      |  64 +-
 .../fledge/tentative/resources/permissions.py |   2 +-
 .../resources/trusted-bidding-signals.py      |  25 +-
 .../resources/trusted-scoring-signals.py      |  15 +-
 ...ory_pushstate_too_many_calls.optional.html |  20 +
 ..._replacestate_too_many_calls.optional.html |  20 +
 ...m-credentialless.https.tentative.window.js |  90 ++
 ...torage-from-none.https.tentative.window.js | 108 ++
 ...rom-require-corp.https.tentative.window.js |  84 ++
 ...ss-cache-storage.https.tentative.window.js | 150 ---
 ...dedicated-worker.https.tentative.window.js | 112 +--
 ...ng-cache-storage-corp.tentative.https.html |  64 +-
 ...ting-subresource-corp.tentative.https.html | 248 ++---
 ...resource-corp.tentative.https.html.headers |   1 -
 .../resources/common.js                       |  76 ++
 .../resources/report.py                       |  42 +
 .../popovers/popover-focus-tabindex.html      |  41 +
 tests/wpt/tests/resources/testdriver.js       |   8 +-
 ...dia-captured-surface-resolution.https.html |  12 +-
 ...ation-trigger-getanimations.tentative.html |  68 ++
 .../animation-trigger/animation-trigger.html  |  16 +-
 .../svg/painting/reftests/WEB_FEATURES.yml    |   4 +
 .../tests/tools/lint/tests/test_file_lints.py |  28 +
 tests/wpt/tests/tools/metadata/yaml/load.py   |  17 +-
 .../wptrunner/wptrunner/executors/actions.py  |   4 +-
 .../wptrunner/executors/executormarionette.py |   2 +-
 .../wptrunner/executors/executorwebdriver.py  |   4 +-
 .../wptrunner/wptrunner/executors/protocol.py |   2 +-
 .../wptrunner/wptrunner/testdriver-extra.js   |   4 +-
 .../animation-types/property-list.js          |  30 +
 .../webrtc/rtp-stats-lifetime.https.html      | 102 ++
 121 files changed, 4205 insertions(+), 714 deletions(-)
 create mode 100644 tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-001.html.ini
 create mode 100644 tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-002.html.ini
 create mode 100644 tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-003.html.ini
 create mode 100644 tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-004.html.ini
 create mode 100644 tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-005.html.ini
 create mode 100644 tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-006.html.ini
 create mode 100644 tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-007.html.ini
 create mode 100644 tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-008.html.ini
 create mode 100644 tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-009.html.ini
 create mode 100644 tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-010.html.ini
 create mode 100644 tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-011.html.ini
 create mode 100644 tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-013.html.ini
 create mode 100644 tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-014.html.ini
 create mode 100644 tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-015.html.ini
 delete mode 100644 tests/wpt/meta/css/css-grid/alignment/grid-content-alignment-with-abspos-001.html.ini
 create mode 100644 tests/wpt/meta/css/css-images/gradient/gradient-infinity-001.html.ini
 create mode 100644 tests/wpt/meta/css/css-images/gradient/gradient-infinity-002.html.ini
 create mode 100644 tests/wpt/meta/html/browsers/browsing-the-web/navigating-across-documents/009.html.ini
 delete mode 100644 tests/wpt/meta/html/browsers/browsing-the-web/navigating-across-documents/navigation-unload-same-origin-fragment.html.ini
 create mode 100644 tests/wpt/meta/html/browsers/history/the-history-interface/history_pushstate_too_many_calls.optional.html.ini
 create mode 100644 tests/wpt/meta/html/browsers/history/the-history-interface/history_replacestate_too_many_calls.optional.html.ini
 create mode 100644 tests/wpt/meta/html/canvas/offscreen/canvas-host/2d.canvas.host.size.large.html.ini
 create mode 100644 tests/wpt/meta/html/canvas/offscreen/canvas-host/2d.canvas.host.size.large.worker.js.ini
 create mode 100644 tests/wpt/meta/html/document-isolation-policy/credentialless-cache-storage-from-credentialless.https.tentative.window.js.ini
 create mode 100644 tests/wpt/meta/html/document-isolation-policy/credentialless-cache-storage-from-none.https.tentative.window.js.ini
 create mode 100644 tests/wpt/meta/html/document-isolation-policy/credentialless-cache-storage-from-require-corp.https.tentative.window.js.ini
 delete mode 100644 tests/wpt/meta/html/document-isolation-policy/credentialless-cache-storage.https.tentative.window.js.ini
 create mode 100644 tests/wpt/tests/css/compositing/root-element-background-contain-hidden-crash.html
 create mode 100644 tests/wpt/tests/css/css-align/blocks/WEB_FEATURES.yml
 create mode 100644 tests/wpt/tests/css/css-anchor-position/anchor-css-zoom.html
 create mode 100644 tests/wpt/tests/css/css-anchor-position/anchor-size-css-zoom.html
 create mode 100644 tests/wpt/tests/css/css-anchor-position/reference/anchor-css-zoom-ref.html
 create mode 100644 tests/wpt/tests/css/css-anchor-position/reference/anchor-size-css-zoom-ref.html
 create mode 100644 tests/wpt/tests/css/css-anchor-position/viewport-overflow-hidden-invisible-anchor-crash.html
 rename tests/wpt/tests/css/css-gaps/tentative/{grid/grid-gap-decorations-002-ref.html => agnostic/gap-decorations-001-ref.html} (100%)
 create mode 100644 tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-001.html
 create mode 100644 tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-002.html
 create mode 100644 tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-003-ref.html
 create mode 100644 tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-003.html
 create mode 100644 tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-004-ref.html
 create mode 100644 tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-004.html
 create mode 100644 tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-005-ref.html
 create mode 100644 tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-005.html
 create mode 100644 tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-006-ref.html
 create mode 100644 tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-006.html
 create mode 100644 tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-007-ref.html
 create mode 100644 tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-007.html
 create mode 100644 tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-008-ref.html
 create mode 100644 tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-008.html
 create mode 100644 tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-009-ref.html
 create mode 100644 tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-009.html
 create mode 100644 tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-010-ref.html
 create mode 100644 tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-010.html
 create mode 100644 tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-011-ref.html
 create mode 100644 tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-011.html
 create mode 100644 tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-013-ref.html
 create mode 100644 tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-013.html
 create mode 100644 tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-014-ref.html
 create mode 100644 tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-014.html
 create mode 100644 tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-015.html
 create mode 100644 tests/wpt/tests/css/css-images/gradient/gradient-infinity-001-ref.html
 create mode 100644 tests/wpt/tests/css/css-images/gradient/gradient-infinity-001.html
 create mode 100644 tests/wpt/tests/css/css-images/gradient/gradient-infinity-002-ref.html
 create mode 100644 tests/wpt/tests/css/css-images/gradient/gradient-infinity-002.html
 create mode 100644 tests/wpt/tests/css/css-overflow/scrollbar-gutter-with-background-gradient-ref.html
 create mode 100644 tests/wpt/tests/css/css-overflow/scrollbar-gutter-with-background-gradient.html
 create mode 100644 tests/wpt/tests/css/css-ruby/ruby-inlinize-fieldset-crash.html
 create mode 100644 tests/wpt/tests/css/css-typed-om/WEB_FEATURES.yml
 create mode 100644 tests/wpt/tests/css/css-view-transitions/navigation/WEB_FEATURES.yml
 create mode 100644 tests/wpt/tests/css/css-view-transitions/parsing/WEB_FEATURES.yml
 create mode 100644 tests/wpt/tests/css/css-view-transitions/view-transition-types-matches-case-sensitive-ref.html
 create mode 100644 tests/wpt/tests/css/css-view-transitions/view-transition-types-matches-case-sensitive.html
 create mode 100644 tests/wpt/tests/html/browsers/history/the-history-interface/history_pushstate_too_many_calls.optional.html
 create mode 100644 tests/wpt/tests/html/browsers/history/the-history-interface/history_replacestate_too_many_calls.optional.html
 create mode 100644 tests/wpt/tests/html/document-isolation-policy/credentialless-cache-storage-from-credentialless.https.tentative.window.js
 create mode 100644 tests/wpt/tests/html/document-isolation-policy/credentialless-cache-storage-from-none.https.tentative.window.js
 create mode 100644 tests/wpt/tests/html/document-isolation-policy/credentialless-cache-storage-from-require-corp.https.tentative.window.js
 delete mode 100644 tests/wpt/tests/html/document-isolation-policy/credentialless-cache-storage.https.tentative.window.js
 delete mode 100644 tests/wpt/tests/html/document-isolation-policy/reporting-subresource-corp.tentative.https.html.headers
 create mode 100644 tests/wpt/tests/html/document-isolation-policy/resources/report.py
 create mode 100644 tests/wpt/tests/html/semantics/popovers/popover-focus-tabindex.html
 create mode 100644 tests/wpt/tests/scroll-animations/animation-trigger/animation-trigger-getanimations.tentative.html
 create mode 100644 tests/wpt/tests/svg/painting/reftests/WEB_FEATURES.yml
 create mode 100644 tests/wpt/tests/webrtc/rtp-stats-lifetime.https.html

diff --git a/tests/wpt/meta/MANIFEST.json b/tests/wpt/meta/MANIFEST.json
index a84fe9adcc4..c6ce4dfd85b 100644
--- a/tests/wpt/meta/MANIFEST.json
+++ b/tests/wpt/meta/MANIFEST.json
@@ -596,6 +596,13 @@
        {}
       ]
      ],
+     "root-element-background-contain-hidden-crash.html": [
+      "da07de5bf5126d4d951f2522315991807eb09fcc",
+      [
+       null,
+       {}
+      ]
+     ],
      "root-element-filter-background-clip-text-crash.html": [
       "e12e4bb80f40e09e189f7f239486be246ea67ade",
       [
@@ -744,6 +751,13 @@
        null,
        {}
       ]
+     ],
+     "viewport-overflow-hidden-invisible-anchor-crash.html": [
+      "b2fa5255b5e891b983944c76e741e9cc291ca30c",
+      [
+       null,
+       {}
+      ]
      ]
     },
     "css-animations": {
@@ -4701,6 +4715,13 @@
        null,
        {}
       ]
+     ],
+     "ruby-inlinize-fieldset-crash.html": [
+      "5454362077c4e01c6edd6f19f7fe7801b86a4b1b",
+      [
+       null,
+       {}
+      ]
      ]
     },
     "css-scoping": {
@@ -124659,6 +124680,19 @@
        {}
       ]
      ],
+     "anchor-css-zoom.html": [
+      "2fab3f2e56241f3e303e101ac68060c09c93cf77",
+      [
+       null,
+       [
+        [
+         "/css/css-anchor-position/reference/anchor-css-zoom-ref.html",
+         "=="
+        ]
+       ],
+       {}
+      ]
+     ],
      "anchor-in-css-min-max-function.html": [
       "c7e56ecc159bb9ea507fe9b8dd1cb0a8b05092b7",
       [
@@ -125195,6 +125229,19 @@
        {}
       ]
      ],
+     "anchor-size-css-zoom.html": [
+      "7bd9b799dfebcb632915b711575322fef4285284",
+      [
+       null,
+       [
+        [
+         "/css/css-anchor-position/reference/anchor-size-css-zoom-ref.html",
+         "=="
+        ]
+       ],
+       {}
+      ]
+     ],
      "position-anchor-001.html": [
       "b0a964485c65ed1c8eeff89a1406bda9f4ea9b48",
       [
@@ -185499,6 +185546,190 @@
     },
     "css-gaps": {
      "tentative": {
+      "flex": {
+       "flex-gap-decorations-001.html": [
+        "0667693f38c77e814a09930461f91956af9e3c85",
+        [
+         null,
+         [
+          [
+           "/css/reference/ref-filled-green-100px-square.xht",
+           "=="
+          ]
+         ],
+         {}
+        ]
+       ],
+       "flex-gap-decorations-002.html": [
+        "632b690434c5f27af9b06721b4203d773097fba4",
+        [
+         null,
+         [
+          [
+           "/css/css-gaps/tentative/agnostic/gap-decorations-001-ref.html",
+           "=="
+          ]
+         ],
+         {}
+        ]
+       ],
+       "flex-gap-decorations-003.html": [
+        "effab7fee24a20936dd0cc487947693c8e87a72d",
+        [
+         null,
+         [
+          [
+           "/css/css-gaps/tentative/flex/flex-gap-decorations-003-ref.html",
+           "=="
+          ]
+         ],
+         {}
+        ]
+       ],
+       "flex-gap-decorations-004.html": [
+        "a5c0698e7fa3829cd515323dbb851cc55c30db7d",
+        [
+         null,
+         [
+          [
+           "/css/css-gaps/tentative/flex/flex-gap-decorations-004-ref.html",
+           "=="
+          ]
+         ],
+         {}
+        ]
+       ],
+       "flex-gap-decorations-005.html": [
+        "1688d447d50dbab028f0a8a82815f5661f921d53",
+        [
+         null,
+         [
+          [
+           "/css/css-gaps/tentative/flex/flex-gap-decorations-005-ref.html",
+           "=="
+          ]
+         ],
+         {}
+        ]
+       ],
+       "flex-gap-decorations-006.html": [
+        "3d7dbfd9fedb7513c77b7c5dce132935c8e52617",
+        [
+         null,
+         [
+          [
+           "/css/css-gaps/tentative/flex/flex-gap-decorations-006-ref.html",
+           "=="
+          ]
+         ],
+         {}
+        ]
+       ],
+       "flex-gap-decorations-007.html": [
+        "34853bb32062009381d7d868fcef8c99fdc9ffa8",
+        [
+         null,
+         [
+          [
+           "/css/css-gaps/tentative/flex/flex-gap-decorations-007-ref.html",
+           "=="
+          ]
+         ],
+         {}
+        ]
+       ],
+       "flex-gap-decorations-008.html": [
+        "bd4e73c158c1d329d7c747d69477d19c8ed6c3fd",
+        [
+         null,
+         [
+          [
+           "/css/css-gaps/tentative/flex/flex-gap-decorations-008-ref.html",
+           "=="
+          ]
+         ],
+         {}
+        ]
+       ],
+       "flex-gap-decorations-009.html": [
+        "6bb406c5b0155c7eb65d0117e388bad2272a6ac9",
+        [
+         null,
+         [
+          [
+           "/css/css-gaps/tentative/flex/flex-gap-decorations-009-ref.html",
+           "=="
+          ]
+         ],
+         {}
+        ]
+       ],
+       "flex-gap-decorations-010.html": [
+        "49f6ec962ada962ac2253b148f316df237bbf5e5",
+        [
+         null,
+         [
+          [
+           "/css/css-gaps/tentative/flex/flex-gap-decorations-010-ref.html",
+           "=="
+          ]
+         ],
+         {}
+        ]
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+         [
+          "script",
+          "/service-workers/service-worker/resources/test-helpers.sub.js"
+         ],
          [
           "script",
           "./resources/common.js"
@@ -713623,7 +714038,7 @@
        }
       ],
       [
-       "html/document-isolation-policy/credentialless-cache-storage.https.tentative.window.html?service_worker",
+       "html/document-isolation-policy/credentialless-cache-storage-from-credentialless.https.tentative.window.html?service_worker",
        {
         "script_metadata": [
          [
@@ -713658,6 +714073,10 @@
           "script",
           "/common/dispatcher/dispatcher.js"
          ],
+         [
+          "script",
+          "/service-workers/service-worker/resources/test-helpers.sub.js"
+         ],
          [
           "script",
           "./resources/common.js"
@@ -713667,7 +714086,7 @@
        }
       ],
       [
-       "html/document-isolation-policy/credentialless-cache-storage.https.tentative.window.html?shared_worker",
+       "html/document-isolation-policy/credentialless-cache-storage-from-credentialless.https.tentative.window.html?shared_worker",
        {
         "script_metadata": [
          [
@@ -713702,6 +714121,400 @@
           "script",
           "/common/dispatcher/dispatcher.js"
          ],
+         [
+          "script",
+          "/service-workers/service-worker/resources/test-helpers.sub.js"
+         ],
+         [
+          "script",
+          "./resources/common.js"
+         ]
+        ],
+        "timeout": "long"
+       }
+      ]
+     ],
+     "credentialless-cache-storage-from-none.https.tentative.window.js": [
+      "e2478abeed21ec9db89273c5c9e9665cdb71d1ba",
+      [
+       "html/document-isolation-policy/credentialless-cache-storage-from-none.https.tentative.window.html?dedicated_worker",
+       {
+        "script_metadata": [
+         [
+          "timeout",
+          "long"
+         ],
+         [
+          "variant",
+          "?document"
+         ],
+         [
+          "variant",
+          "?dedicated_worker"
+         ],
+         [
+          "variant",
+          "?shared_worker"
+         ],
+         [
+          "variant",
+          "?service_worker"
+         ],
+         [
+          "script",
+          "/common/get-host-info.sub.js"
+         ],
+         [
+          "script",
+          "/common/utils.js"
+         ],
+         [
+          "script",
+          "/common/dispatcher/dispatcher.js"
+         ],
+         [
+          "script",
+          "/service-workers/service-worker/resources/test-helpers.sub.js"
+         ],
+         [
+          "script",
+          "./resources/common.js"
+         ]
+        ],
+        "timeout": "long"
+       }
+      ],
+      [
+       "html/document-isolation-policy/credentialless-cache-storage-from-none.https.tentative.window.html?document",
+       {
+        "script_metadata": [
+         [
+          "timeout",
+          "long"
+         ],
+         [
+          "variant",
+          "?document"
+         ],
+         [
+          "variant",
+          "?dedicated_worker"
+         ],
+         [
+          "variant",
+          "?shared_worker"
+         ],
+         [
+          "variant",
+          "?service_worker"
+         ],
+         [
+          "script",
+          "/common/get-host-info.sub.js"
+         ],
+         [
+          "script",
+          "/common/utils.js"
+         ],
+         [
+          "script",
+          "/common/dispatcher/dispatcher.js"
+         ],
+         [
+          "script",
+          "/service-workers/service-worker/resources/test-helpers.sub.js"
+         ],
+         [
+          "script",
+          "./resources/common.js"
+         ]
+        ],
+        "timeout": "long"
+       }
+      ],
+      [
+       "html/document-isolation-policy/credentialless-cache-storage-from-none.https.tentative.window.html?service_worker",
+       {
+        "script_metadata": [
+         [
+          "timeout",
+          "long"
+         ],
+         [
+          "variant",
+          "?document"
+         ],
+         [
+          "variant",
+          "?dedicated_worker"
+         ],
+         [
+          "variant",
+          "?shared_worker"
+         ],
+         [
+          "variant",
+          "?service_worker"
+         ],
+         [
+          "script",
+          "/common/get-host-info.sub.js"
+         ],
+         [
+          "script",
+          "/common/utils.js"
+         ],
+         [
+          "script",
+          "/common/dispatcher/dispatcher.js"
+         ],
+         [
+          "script",
+          "/service-workers/service-worker/resources/test-helpers.sub.js"
+         ],
+         [
+          "script",
+          "./resources/common.js"
+         ]
+        ],
+        "timeout": "long"
+       }
+      ],
+      [
+       "html/document-isolation-policy/credentialless-cache-storage-from-none.https.tentative.window.html?shared_worker",
+       {
+        "script_metadata": [
+         [
+          "timeout",
+          "long"
+         ],
+         [
+          "variant",
+          "?document"
+         ],
+         [
+          "variant",
+          "?dedicated_worker"
+         ],
+         [
+          "variant",
+          "?shared_worker"
+         ],
+         [
+          "variant",
+          "?service_worker"
+         ],
+         [
+          "script",
+          "/common/get-host-info.sub.js"
+         ],
+         [
+          "script",
+          "/common/utils.js"
+         ],
+         [
+          "script",
+          "/common/dispatcher/dispatcher.js"
+         ],
+         [
+          "script",
+          "/service-workers/service-worker/resources/test-helpers.sub.js"
+         ],
+         [
+          "script",
+          "./resources/common.js"
+         ]
+        ],
+        "timeout": "long"
+       }
+      ]
+     ],
+     "credentialless-cache-storage-from-require-corp.https.tentative.window.js": [
+      "720fa6a987a164f95fd91200b574ca6569215c10",
+      [
+       "html/document-isolation-policy/credentialless-cache-storage-from-require-corp.https.tentative.window.html?dedicated_worker",
+       {
+        "script_metadata": [
+         [
+          "timeout",
+          "long"
+         ],
+         [
+          "variant",
+          "?document"
+         ],
+         [
+          "variant",
+          "?dedicated_worker"
+         ],
+         [
+          "variant",
+          "?shared_worker"
+         ],
+         [
+          "variant",
+          "?service_worker"
+         ],
+         [
+          "script",
+          "/common/get-host-info.sub.js"
+         ],
+         [
+          "script",
+          "/common/utils.js"
+         ],
+         [
+          "script",
+          "/common/dispatcher/dispatcher.js"
+         ],
+         [
+          "script",
+          "/service-workers/service-worker/resources/test-helpers.sub.js"
+         ],
+         [
+          "script",
+          "./resources/common.js"
+         ]
+        ],
+        "timeout": "long"
+       }
+      ],
+      [
+       "html/document-isolation-policy/credentialless-cache-storage-from-require-corp.https.tentative.window.html?document",
+       {
+        "script_metadata": [
+         [
+          "timeout",
+          "long"
+         ],
+         [
+          "variant",
+          "?document"
+         ],
+         [
+          "variant",
+          "?dedicated_worker"
+         ],
+         [
+          "variant",
+          "?shared_worker"
+         ],
+         [
+          "variant",
+          "?service_worker"
+         ],
+         [
+          "script",
+          "/common/get-host-info.sub.js"
+         ],
+         [
+          "script",
+          "/common/utils.js"
+         ],
+         [
+          "script",
+          "/common/dispatcher/dispatcher.js"
+         ],
+         [
+          "script",
+          "/service-workers/service-worker/resources/test-helpers.sub.js"
+         ],
+         [
+          "script",
+          "./resources/common.js"
+         ]
+        ],
+        "timeout": "long"
+       }
+      ],
+      [
+       "html/document-isolation-policy/credentialless-cache-storage-from-require-corp.https.tentative.window.html?service_worker",
+       {
+        "script_metadata": [
+         [
+          "timeout",
+          "long"
+         ],
+         [
+          "variant",
+          "?document"
+         ],
+         [
+          "variant",
+          "?dedicated_worker"
+         ],
+         [
+          "variant",
+          "?shared_worker"
+         ],
+         [
+          "variant",
+          "?service_worker"
+         ],
+         [
+          "script",
+          "/common/get-host-info.sub.js"
+         ],
+         [
+          "script",
+          "/common/utils.js"
+         ],
+         [
+          "script",
+          "/common/dispatcher/dispatcher.js"
+         ],
+         [
+          "script",
+          "/service-workers/service-worker/resources/test-helpers.sub.js"
+         ],
+         [
+          "script",
+          "./resources/common.js"
+         ]
+        ],
+        "timeout": "long"
+       }
+      ],
+      [
+       "html/document-isolation-policy/credentialless-cache-storage-from-require-corp.https.tentative.window.html?shared_worker",
+       {
+        "script_metadata": [
+         [
+          "timeout",
+          "long"
+         ],
+         [
+          "variant",
+          "?document"
+         ],
+         [
+          "variant",
+          "?dedicated_worker"
+         ],
+         [
+          "variant",
+          "?shared_worker"
+         ],
+         [
+          "variant",
+          "?service_worker"
+         ],
+         [
+          "script",
+          "/common/get-host-info.sub.js"
+         ],
+         [
+          "script",
+          "/common/utils.js"
+         ],
+         [
+          "script",
+          "/common/dispatcher/dispatcher.js"
+         ],
+         [
+          "script",
+          "/service-workers/service-worker/resources/test-helpers.sub.js"
+         ],
          [
           "script",
           "./resources/common.js"
@@ -713764,7 +714577,7 @@
       ]
      ],
      "credentialless-dedicated-worker.https.tentative.window.js": [
-      "748130dfdc209bf9cfac158297e772a52851b48a",
+      "539ed0a6955ad06ed0571e7fcf130624e8ec86f4",
       [
        "html/document-isolation-policy/credentialless-dedicated-worker.https.tentative.window.html",
        {
@@ -713785,6 +714598,10 @@
           "script",
           "/common/dispatcher/dispatcher.js"
          ],
+         [
+          "script",
+          "/service-workers/service-worker/resources/test-helpers.sub.js"
+         ],
          [
           "script",
           "./resources/common.js"
@@ -714502,7 +715319,7 @@
       ]
      ],
      "reporting-cache-storage-corp.tentative.https.html": [
-      "934c87b2abc674dbb4e2f179b793497686dccca7",
+      "0b7c12ac514c518c04aeee214939cdfffbf8aa5b",
       [
        null,
        {
@@ -714511,7 +715328,7 @@
       ]
      ],
      "reporting-subresource-corp.tentative.https.html": [
-      "6be3c35ad7ab749f52c4cd20d348bea21dfad448",
+      "013eb34d1065ee7bbe274af2b5409d47a37be0bf",
       [
        null,
        {
@@ -730024,6 +730841,16 @@
         }
        ]
       ],
+      "popover-focus-tabindex.html": [
+       "f9c2342ba5e0956730c904476544ebab814fedb3",
+       [
+        null,
+        {
+         "testdriver": true,
+         "timeout": "long"
+        }
+       ]
+      ],
       "popover-focus.html": [
        "25a6c2da536355fb1ddffc4587b18acff3421c0a",
        [
@@ -781637,7 +782464,7 @@
     ],
     "tentative": {
      "getdisplaymedia-captured-surface-resolution.https.html": [
-      "a1e7997ca69707d2e3c76924aa421c041d6d2926",
+      "6064bced90b870b6edc04435f6ee00aedd9c7177",
       [
        null,
        {
@@ -782065,6 +782892,13 @@
        {}
       ]
      ],
+     "animation-trigger-getanimations.tentative.html": [
+      "08d509d8cb2fdfff7bef3ce76f010d8dc4535356",
+      [
+       null,
+       {}
+      ]
+     ],
      "animation-trigger-once-play-state.tentative.html": [
       "23c6aa8ce9f697cab4121e713556b544cb4202cf",
       [
@@ -782094,7 +782928,7 @@
       ]
      ],
      "animation-trigger.html": [
-      "dd4820dfe5fe0a964044b0d27eea153b9fbbfb3e",
+      "7506fb05829d8d2c84dbaf3915a9e08314302af1",
       [
        null,
        {}
@@ -874371,6 +875205,13 @@
       {}
      ]
     ],
+    "rtp-stats-lifetime.https.html": [
+     "4ddd6ad4f16c5432694723f4da6b68acd24e06cb",
+     [
+      null,
+      {}
+     ]
+    ],
     "simplecall-no-ssrcs.https.html": [
      "b47cd30eaf4e5db337a1fb91e34e9ede16ee5421",
      [
diff --git a/tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-001.html.ini b/tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-001.html.ini
new file mode 100644
index 00000000000..7c470f39fc1
--- /dev/null
+++ b/tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-001.html.ini
@@ -0,0 +1,2 @@
+[flex-gap-decorations-001.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-002.html.ini b/tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-002.html.ini
new file mode 100644
index 00000000000..35e281db355
--- /dev/null
+++ b/tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-002.html.ini
@@ -0,0 +1,2 @@
+[flex-gap-decorations-002.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-003.html.ini b/tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-003.html.ini
new file mode 100644
index 00000000000..065750a2637
--- /dev/null
+++ b/tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-003.html.ini
@@ -0,0 +1,2 @@
+[flex-gap-decorations-003.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-004.html.ini b/tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-004.html.ini
new file mode 100644
index 00000000000..33a8389bbd0
--- /dev/null
+++ b/tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-004.html.ini
@@ -0,0 +1,2 @@
+[flex-gap-decorations-004.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-005.html.ini b/tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-005.html.ini
new file mode 100644
index 00000000000..44a99785f78
--- /dev/null
+++ b/tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-005.html.ini
@@ -0,0 +1,2 @@
+[flex-gap-decorations-005.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-006.html.ini b/tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-006.html.ini
new file mode 100644
index 00000000000..eb292ead119
--- /dev/null
+++ b/tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-006.html.ini
@@ -0,0 +1,2 @@
+[flex-gap-decorations-006.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-007.html.ini b/tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-007.html.ini
new file mode 100644
index 00000000000..3886670391a
--- /dev/null
+++ b/tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-007.html.ini
@@ -0,0 +1,2 @@
+[flex-gap-decorations-007.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-008.html.ini b/tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-008.html.ini
new file mode 100644
index 00000000000..e93e69af6ff
--- /dev/null
+++ b/tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-008.html.ini
@@ -0,0 +1,2 @@
+[flex-gap-decorations-008.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-009.html.ini b/tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-009.html.ini
new file mode 100644
index 00000000000..dad33643f33
--- /dev/null
+++ b/tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-009.html.ini
@@ -0,0 +1,2 @@
+[flex-gap-decorations-009.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-010.html.ini b/tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-010.html.ini
new file mode 100644
index 00000000000..f3e2ddf5b5f
--- /dev/null
+++ b/tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-010.html.ini
@@ -0,0 +1,2 @@
+[flex-gap-decorations-010.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-011.html.ini b/tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-011.html.ini
new file mode 100644
index 00000000000..bb03468b7da
--- /dev/null
+++ b/tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-011.html.ini
@@ -0,0 +1,2 @@
+[flex-gap-decorations-011.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-013.html.ini b/tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-013.html.ini
new file mode 100644
index 00000000000..e30d5b33be0
--- /dev/null
+++ b/tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-013.html.ini
@@ -0,0 +1,2 @@
+[flex-gap-decorations-013.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-014.html.ini b/tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-014.html.ini
new file mode 100644
index 00000000000..324e614ac6e
--- /dev/null
+++ b/tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-014.html.ini
@@ -0,0 +1,2 @@
+[flex-gap-decorations-014.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-015.html.ini b/tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-015.html.ini
new file mode 100644
index 00000000000..7abe6f62b5a
--- /dev/null
+++ b/tests/wpt/meta/css/css-gaps/tentative/flex/flex-gap-decorations-015.html.ini
@@ -0,0 +1,2 @@
+[flex-gap-decorations-015.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-grid/alignment/grid-content-alignment-with-abspos-001.html.ini b/tests/wpt/meta/css/css-grid/alignment/grid-content-alignment-with-abspos-001.html.ini
deleted file mode 100644
index efff2a2620a..00000000000
--- a/tests/wpt/meta/css/css-grid/alignment/grid-content-alignment-with-abspos-001.html.ini
+++ /dev/null
@@ -1,3 +0,0 @@
-[grid-content-alignment-with-abspos-001.html]
-  [.grid 1]
-    expected: FAIL
diff --git a/tests/wpt/meta/css/css-images/gradient/gradient-infinity-001.html.ini b/tests/wpt/meta/css/css-images/gradient/gradient-infinity-001.html.ini
new file mode 100644
index 00000000000..4b3a2c8ee9d
--- /dev/null
+++ b/tests/wpt/meta/css/css-images/gradient/gradient-infinity-001.html.ini
@@ -0,0 +1,2 @@
+[gradient-infinity-001.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-images/gradient/gradient-infinity-002.html.ini b/tests/wpt/meta/css/css-images/gradient/gradient-infinity-002.html.ini
new file mode 100644
index 00000000000..2b9dad9b029
--- /dev/null
+++ b/tests/wpt/meta/css/css-images/gradient/gradient-infinity-002.html.ini
@@ -0,0 +1,2 @@
+[gradient-infinity-002.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/fetch/fetch-later/quota/same-origin-iframe/oversized-payload.tentative.https.window.js.ini b/tests/wpt/meta/fetch/fetch-later/quota/same-origin-iframe/oversized-payload.tentative.https.window.js.ini
index 967a5e13445..381cbb7092d 100644
--- a/tests/wpt/meta/fetch/fetch-later/quota/same-origin-iframe/oversized-payload.tentative.https.window.js.ini
+++ b/tests/wpt/meta/fetch/fetch-later/quota/same-origin-iframe/oversized-payload.tentative.https.window.js.ini
@@ -1,5 +1,4 @@
 [oversized-payload.tentative.https.window.html]
-  expected: ERROR
   [fetchLater() does not accept payload[size=65537\] exceeding per-origin quota in a POST request body of String in same-origin iframe.]
     expected: FAIL
 
diff --git a/tests/wpt/meta/html/browsers/browsing-the-web/navigating-across-documents/009.html.ini b/tests/wpt/meta/html/browsers/browsing-the-web/navigating-across-documents/009.html.ini
new file mode 100644
index 00000000000..3fb21c9b2c6
--- /dev/null
+++ b/tests/wpt/meta/html/browsers/browsing-the-web/navigating-across-documents/009.html.ini
@@ -0,0 +1,3 @@
+[009.html]
+  [Link with onclick form submit to javascript url with document.write and href navigation ]
+    expected: FAIL
diff --git a/tests/wpt/meta/html/browsers/browsing-the-web/navigating-across-documents/navigation-unload-same-origin-fragment.html.ini b/tests/wpt/meta/html/browsers/browsing-the-web/navigating-across-documents/navigation-unload-same-origin-fragment.html.ini
deleted file mode 100644
index 49cc2e16746..00000000000
--- a/tests/wpt/meta/html/browsers/browsing-the-web/navigating-across-documents/navigation-unload-same-origin-fragment.html.ini
+++ /dev/null
@@ -1,3 +0,0 @@
-[navigation-unload-same-origin-fragment.html]
-  [Tests that a fragment navigation in the unload handler will not block the initial navigation]
-    expected: FAIL
diff --git a/tests/wpt/meta/html/browsers/history/the-history-interface/history_pushstate_too_many_calls.optional.html.ini b/tests/wpt/meta/html/browsers/history/the-history-interface/history_pushstate_too_many_calls.optional.html.ini
new file mode 100644
index 00000000000..3a447593ff4
--- /dev/null
+++ b/tests/wpt/meta/html/browsers/history/the-history-interface/history_pushstate_too_many_calls.optional.html.ini
@@ -0,0 +1,3 @@
+[history_pushstate_too_many_calls.optional.html]
+  [history pushState too many calls]
+    expected: FAIL
diff --git a/tests/wpt/meta/html/browsers/history/the-history-interface/history_replacestate_too_many_calls.optional.html.ini b/tests/wpt/meta/html/browsers/history/the-history-interface/history_replacestate_too_many_calls.optional.html.ini
new file mode 100644
index 00000000000..afecb4e38a7
--- /dev/null
+++ b/tests/wpt/meta/html/browsers/history/the-history-interface/history_replacestate_too_many_calls.optional.html.ini
@@ -0,0 +1,3 @@
+[history_replacestate_too_many_calls.optional.html]
+  [history replaceState too many calls]
+    expected: FAIL
diff --git a/tests/wpt/meta/html/canvas/element/manual/imagebitmap/createImageBitmap-transfer.html.ini b/tests/wpt/meta/html/canvas/element/manual/imagebitmap/createImageBitmap-transfer.html.ini
index 5d2657041d1..7e036a1c4e4 100644
--- a/tests/wpt/meta/html/canvas/element/manual/imagebitmap/createImageBitmap-transfer.html.ini
+++ b/tests/wpt/meta/html/canvas/element/manual/imagebitmap/createImageBitmap-transfer.html.ini
@@ -1,5 +1,5 @@
 [createImageBitmap-transfer.html]
-  expected: ERROR
+  expected: TIMEOUT
   [Transfer ImageBitmap created from a vector HTMLImageElement]
     expected: FAIL
 
diff --git a/tests/wpt/meta/html/canvas/offscreen/canvas-host/2d.canvas.host.size.large.html.ini b/tests/wpt/meta/html/canvas/offscreen/canvas-host/2d.canvas.host.size.large.html.ini
new file mode 100644
index 00000000000..f6455f9bd76
--- /dev/null
+++ b/tests/wpt/meta/html/canvas/offscreen/canvas-host/2d.canvas.host.size.large.html.ini
@@ -0,0 +1,2 @@
+[2d.canvas.host.size.large.html]
+  expected: CRASH
diff --git a/tests/wpt/meta/html/canvas/offscreen/canvas-host/2d.canvas.host.size.large.worker.js.ini b/tests/wpt/meta/html/canvas/offscreen/canvas-host/2d.canvas.host.size.large.worker.js.ini
new file mode 100644
index 00000000000..d571dfa4cf9
--- /dev/null
+++ b/tests/wpt/meta/html/canvas/offscreen/canvas-host/2d.canvas.host.size.large.worker.js.ini
@@ -0,0 +1,2 @@
+[2d.canvas.host.size.large.worker.html]
+  expected: CRASH
diff --git a/tests/wpt/meta/html/document-isolation-policy/credentialless-cache-storage-from-credentialless.https.tentative.window.js.ini b/tests/wpt/meta/html/document-isolation-policy/credentialless-cache-storage-from-credentialless.https.tentative.window.js.ini
new file mode 100644
index 00000000000..2814e7ce699
--- /dev/null
+++ b/tests/wpt/meta/html/document-isolation-policy/credentialless-cache-storage-from-credentialless.https.tentative.window.js.ini
@@ -0,0 +1,54 @@
+[credentialless-cache-storage-from-credentialless.https.tentative.window.html?document]
+  [[document\] isolate-and-credentialless => none]
+    expected: FAIL
+
+  [[document\] isolate-and-credentialless => isolate-and-credentialless]
+    expected: FAIL
+
+  [[document\] isolate-and-credentialless => isolate-and-require-corp]
+    expected: FAIL
+
+  [[document\] isolate-and-credentialless => isolate-and-require-corp + CORP]
+    expected: FAIL
+
+
+[credentialless-cache-storage-from-credentialless.https.tentative.window.html?service_worker]
+  [[service_worker\] isolate-and-credentialless => none]
+    expected: FAIL
+
+  [[service_worker\] isolate-and-credentialless => isolate-and-credentialless]
+    expected: FAIL
+
+  [[service_worker\] isolate-and-credentialless => isolate-and-require-corp]
+    expected: FAIL
+
+  [[service_worker\] isolate-and-credentialless => isolate-and-require-corp + CORP]
+    expected: FAIL
+
+
+[credentialless-cache-storage-from-credentialless.https.tentative.window.html?dedicated_worker]
+  [[dedicated_worker\] isolate-and-credentialless => none]
+    expected: FAIL
+
+  [[dedicated_worker\] isolate-and-credentialless => isolate-and-credentialless]
+    expected: FAIL
+
+  [[dedicated_worker\] isolate-and-credentialless => isolate-and-require-corp]
+    expected: FAIL
+
+  [[dedicated_worker\] isolate-and-credentialless => isolate-and-require-corp + CORP]
+    expected: FAIL
+
+
+[credentialless-cache-storage-from-credentialless.https.tentative.window.html?shared_worker]
+  [[shared_worker\] isolate-and-credentialless => none]
+    expected: FAIL
+
+  [[shared_worker\] isolate-and-credentialless => isolate-and-credentialless]
+    expected: FAIL
+
+  [[shared_worker\] isolate-and-credentialless => isolate-and-require-corp]
+    expected: FAIL
+
+  [[shared_worker\] isolate-and-credentialless => isolate-and-require-corp + CORP]
+    expected: FAIL
diff --git a/tests/wpt/meta/html/document-isolation-policy/credentialless-cache-storage-from-none.https.tentative.window.js.ini b/tests/wpt/meta/html/document-isolation-policy/credentialless-cache-storage-from-none.https.tentative.window.js.ini
new file mode 100644
index 00000000000..85857046975
--- /dev/null
+++ b/tests/wpt/meta/html/document-isolation-policy/credentialless-cache-storage-from-none.https.tentative.window.js.ini
@@ -0,0 +1,90 @@
+[credentialless-cache-storage-from-none.https.tentative.window.html?shared_worker]
+  [[shared_worker\] none => none]
+    expected: FAIL
+
+  [[shared_worker\] none => isolate-and-credentialless]
+    expected: FAIL
+
+  [[shared_worker\] none => isolate-and-credentialless (omit)]
+    expected: FAIL
+
+  [[shared_worker\] none => isolate-and-credentialless + CORP]
+    expected: FAIL
+
+  [[shared_worker\] none => isolate-and-require-corp]
+    expected: FAIL
+
+  [[shared_worker\] none => isolate-and-require-corp (omit)]
+    expected: FAIL
+
+  [[shared_worker\] none => isolate-and-require-corp + CORP]
+    expected: FAIL
+
+
+[credentialless-cache-storage-from-none.https.tentative.window.html?document]
+  [[document\] none => none]
+    expected: FAIL
+
+  [[document\] none => isolate-and-credentialless]
+    expected: FAIL
+
+  [[document\] none => isolate-and-credentialless (omit)]
+    expected: FAIL
+
+  [[document\] none => isolate-and-credentialless + CORP]
+    expected: FAIL
+
+  [[document\] none => isolate-and-require-corp]
+    expected: FAIL
+
+  [[document\] none => isolate-and-require-corp (omit)]
+    expected: FAIL
+
+  [[document\] none => isolate-and-require-corp + CORP]
+    expected: FAIL
+
+
+[credentialless-cache-storage-from-none.https.tentative.window.html?dedicated_worker]
+  [[dedicated_worker\] none => none]
+    expected: FAIL
+
+  [[dedicated_worker\] none => isolate-and-credentialless]
+    expected: FAIL
+
+  [[dedicated_worker\] none => isolate-and-credentialless (omit)]
+    expected: FAIL
+
+  [[dedicated_worker\] none => isolate-and-credentialless + CORP]
+    expected: FAIL
+
+  [[dedicated_worker\] none => isolate-and-require-corp]
+    expected: FAIL
+
+  [[dedicated_worker\] none => isolate-and-require-corp (omit)]
+    expected: FAIL
+
+  [[dedicated_worker\] none => isolate-and-require-corp + CORP]
+    expected: FAIL
+
+
+[credentialless-cache-storage-from-none.https.tentative.window.html?service_worker]
+  [[service_worker\] none => none]
+    expected: FAIL
+
+  [[service_worker\] none => isolate-and-credentialless]
+    expected: FAIL
+
+  [[service_worker\] none => isolate-and-credentialless (omit)]
+    expected: FAIL
+
+  [[service_worker\] none => isolate-and-credentialless + CORP]
+    expected: FAIL
+
+  [[service_worker\] none => isolate-and-require-corp]
+    expected: FAIL
+
+  [[service_worker\] none => isolate-and-require-corp (omit)]
+    expected: FAIL
+
+  [[service_worker\] none => isolate-and-require-corp + CORP]
+    expected: FAIL
diff --git a/tests/wpt/meta/html/document-isolation-policy/credentialless-cache-storage-from-require-corp.https.tentative.window.js.ini b/tests/wpt/meta/html/document-isolation-policy/credentialless-cache-storage-from-require-corp.https.tentative.window.js.ini
new file mode 100644
index 00000000000..b116234c403
--- /dev/null
+++ b/tests/wpt/meta/html/document-isolation-policy/credentialless-cache-storage-from-require-corp.https.tentative.window.js.ini
@@ -0,0 +1,42 @@
+[credentialless-cache-storage-from-require-corp.https.tentative.window.html?dedicated_worker]
+  [[dedicated_worker\] isolate-and-require-corp => none]
+    expected: FAIL
+
+  [[dedicated_worker\] isolate-and-require-corp => isolate-and-credentialless]
+    expected: FAIL
+
+  [[dedicated_worker\] isolate-and-require-corp => isolate-and-require-corp]
+    expected: FAIL
+
+
+[credentialless-cache-storage-from-require-corp.https.tentative.window.html?document]
+  [[document\] isolate-and-require-corp => none]
+    expected: FAIL
+
+  [[document\] isolate-and-require-corp => isolate-and-credentialless]
+    expected: FAIL
+
+  [[document\] isolate-and-require-corp => isolate-and-require-corp]
+    expected: FAIL
+
+
+[credentialless-cache-storage-from-require-corp.https.tentative.window.html?shared_worker]
+  [[shared_worker\] isolate-and-require-corp => none]
+    expected: FAIL
+
+  [[shared_worker\] isolate-and-require-corp => isolate-and-credentialless]
+    expected: FAIL
+
+  [[shared_worker\] isolate-and-require-corp => isolate-and-require-corp]
+    expected: FAIL
+
+
+[credentialless-cache-storage-from-require-corp.https.tentative.window.html?service_worker]
+  [[service_worker\] isolate-and-require-corp => none]
+    expected: FAIL
+
+  [[service_worker\] isolate-and-require-corp => isolate-and-credentialless]
+    expected: FAIL
+
+  [[service_worker\] isolate-and-require-corp => isolate-and-require-corp]
+    expected: FAIL
diff --git a/tests/wpt/meta/html/document-isolation-policy/credentialless-cache-storage.https.tentative.window.js.ini b/tests/wpt/meta/html/document-isolation-policy/credentialless-cache-storage.https.tentative.window.js.ini
deleted file mode 100644
index 17902443a95..00000000000
--- a/tests/wpt/meta/html/document-isolation-policy/credentialless-cache-storage.https.tentative.window.js.ini
+++ /dev/null
@@ -1,137 +0,0 @@
-[credentialless-cache-storage.https.tentative.window.html?document]
-  expected: TIMEOUT
-  [[document\] none => none]
-    expected: TIMEOUT
-
-  [[document\] none => isolate-and-credentialless]
-    expected: TIMEOUT
-
-  [[document\] none => isolate-and-credentialless (omit)]
-    expected: TIMEOUT
-
-  [[document\] none => isolate-and-credentialless + CORP]
-    expected: TIMEOUT
-
-  [[document\] none => isolate-and-require-corp]
-    expected: TIMEOUT
-
-  [[document\] none => isolate-and-require-corp (omit)]
-    expected: TIMEOUT
-
-  [[document\] none => isolate-and-require-corp + CORP]
-    expected: TIMEOUT
-
-  [[document\] isolate-and-credentialless => none]
-    expected: TIMEOUT
-
-  [[document\] isolate-and-credentialless => isolate-and-credentialless]
-    expected: TIMEOUT
-
-  [[document\] isolate-and-credentialless => isolate-and-require-corp]
-    expected: TIMEOUT
-
-  [[document\] isolate-and-credentialless => isolate-and-require-corp + CORP]
-    expected: TIMEOUT
-
-  [[document\] isolate-and-require-corp => none]
-    expected: TIMEOUT
-
-  [[document\] isolate-and-require-corp => isolate-and-credentialless]
-    expected: TIMEOUT
-
-  [[document\] isolate-and-require-corp => isolate-and-require-corp]
-    expected: TIMEOUT
-
-
-[credentialless-cache-storage.https.tentative.window.html?dedicated_worker]
-  expected: TIMEOUT
-  [[dedicated_worker\] none => none]
-    expected: TIMEOUT
-
-  [[dedicated_worker\] none => isolate-and-credentialless]
-    expected: TIMEOUT
-
-  [[dedicated_worker\] none => isolate-and-credentialless (omit)]
-    expected: TIMEOUT
-
-  [[dedicated_worker\] none => isolate-and-credentialless + CORP]
-    expected: TIMEOUT
-
-  [[dedicated_worker\] none => isolate-and-require-corp]
-    expected: TIMEOUT
-
-  [[dedicated_worker\] none => isolate-and-require-corp (omit)]
-    expected: TIMEOUT
-
-  [[dedicated_worker\] none => isolate-and-require-corp + CORP]
-    expected: TIMEOUT
-
-  [[dedicated_worker\] isolate-and-credentialless => none]
-    expected: TIMEOUT
-
-  [[dedicated_worker\] isolate-and-credentialless => isolate-and-credentialless]
-    expected: TIMEOUT
-
-  [[dedicated_worker\] isolate-and-credentialless => isolate-and-require-corp]
-    expected: TIMEOUT
-
-  [[dedicated_worker\] isolate-and-credentialless => isolate-and-require-corp + CORP]
-    expected: TIMEOUT
-
-  [[dedicated_worker\] isolate-and-require-corp => none]
-    expected: TIMEOUT
-
-  [[dedicated_worker\] isolate-and-require-corp => isolate-and-credentialless]
-    expected: TIMEOUT
-
-  [[dedicated_worker\] isolate-and-require-corp => isolate-and-require-corp]
-    expected: TIMEOUT
-
-
-[credentialless-cache-storage.https.tentative.window.html?service_worker]
-  expected: ERROR
-  [[service_worker\] none => none]
-    expected: TIMEOUT
-
-  [[service_worker\] none => isolate-and-credentialless]
-    expected: TIMEOUT
-
-  [[service_worker\] none => isolate-and-credentialless (omit)]
-    expected: TIMEOUT
-
-  [[service_worker\] none => isolate-and-credentialless + CORP]
-    expected: TIMEOUT
-
-  [[service_worker\] none => isolate-and-require-corp]
-    expected: TIMEOUT
-
-  [[service_worker\] none => isolate-and-require-corp (omit)]
-    expected: TIMEOUT
-
-  [[service_worker\] none => isolate-and-require-corp + CORP]
-    expected: TIMEOUT
-
-  [[service_worker\] isolate-and-credentialless => none]
-    expected: TIMEOUT
-
-  [[service_worker\] isolate-and-credentialless => isolate-and-credentialless]
-    expected: TIMEOUT
-
-  [[service_worker\] isolate-and-credentialless => isolate-and-require-corp]
-    expected: TIMEOUT
-
-  [[service_worker\] isolate-and-credentialless => isolate-and-require-corp + CORP]
-    expected: TIMEOUT
-
-  [[service_worker\] isolate-and-require-corp => none]
-    expected: TIMEOUT
-
-  [[service_worker\] isolate-and-require-corp => isolate-and-credentialless]
-    expected: TIMEOUT
-
-  [[service_worker\] isolate-and-require-corp => isolate-and-require-corp]
-    expected: TIMEOUT
-
-
-[credentialless-cache-storage.https.tentative.window.html?shared_worker]
-  expected: ERROR
diff --git a/tests/wpt/meta/html/document-isolation-policy/reporting-subresource-corp.tentative.https.html.ini b/tests/wpt/meta/html/document-isolation-policy/reporting-subresource-corp.tentative.https.html.ini
index e6e755c4126..7ee7b7caaaf 100644
--- a/tests/wpt/meta/html/document-isolation-policy/reporting-subresource-corp.tentative.https.html.ini
+++ b/tests/wpt/meta/html/document-isolation-policy/reporting-subresource-corp.tentative.https.html.ini
@@ -1,5 +1,4 @@
 [reporting-subresource-corp.tentative.https.html]
-  expected: ERROR
   [[document\] blocked due to DIP]
     expected: FAIL
 
@@ -9,9 +8,6 @@
   [destination: script]
     expected: FAIL
 
-  [[dedicated worker\] same-origin]
-    expected: FAIL
-
   [[dedicated worker\] blocked by CORP: same-origin]
     expected: FAIL
 
@@ -44,3 +40,12 @@
 
   [[between service worker and page\] 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/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 c6f1e5d7d84..a6591b318dc 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: NOTRUN
+    expected: FAIL
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 d54d0110be0..8c02df18cbe 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
@@ -90,3 +90,11 @@ promise_test(async t => {
     return detector.measureInputUsage('hello', {signal});
   });
 }, 'Aborting Translator.measureInputUsage().');
+
+promise_test(async () => {
+  const expected_languages = ['en', 'es'];
+  const detector = await languageDetector.create({
+    expectedInputLanguages: expected_languages
+  });
+  assert_array_equals(detector.expectedInputLanguages(), expected_languages);
+}, 'Creating LanguageDetector with expectedInputLanguages');
diff --git a/tests/wpt/tests/css/compositing/root-element-background-contain-hidden-crash.html b/tests/wpt/tests/css/compositing/root-element-background-contain-hidden-crash.html
new file mode 100644
index 00000000000..da07de5bf51
--- /dev/null
+++ b/tests/wpt/tests/css/compositing/root-element-background-contain-hidden-crash.html
@@ -0,0 +1,11 @@
+<style>
+* {
+  background-color: red;
+  contain: layout;
+}
+*:first-child {
+  visibility: hidden;
+  background-image: url(data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAGAAAABgCAIAAABt+uBvAAAAAXNSR0IArs4c6QAAAAlwSFlzAAALEwAACxMBAJqcGAAAAAd0SU1FB9wDGhYvCNVA1EIAAAAZdEVYdENvbW1lbnQAQ3JlYXRlZCB3aXRoIEdJTVBXgQ4XAAAAjklEQVR42u3QIQEAMAgAsHNNVspTgARY1BZh0ZWP3VcgSJAgQYIECRKEIEGCBAkSJEgQggQJEiRIkCBBCBIkSJAgQYIECUKQIEGCBAkSJAhBggQJEiRIkCAECRIkSJAgQYIEIUiQIEGCBAkShCBBggQJEiRIEIIECRIkSJAgQYIQJEiQIEGCBAlCkCBBdwaeugIthHvZ+AAAAABJRU5ErkJggg==)
+}
+</style>
+<object data="x">
diff --git a/tests/wpt/tests/css/css-align/blocks/WEB_FEATURES.yml b/tests/wpt/tests/css/css-align/blocks/WEB_FEATURES.yml
new file mode 100644
index 00000000000..c5493f75956
--- /dev/null
+++ b/tests/wpt/tests/css/css-align/blocks/WEB_FEATURES.yml
@@ -0,0 +1,4 @@
+features:
+- name: align-content-block
+  files:
+  - align-content-block-*
diff --git a/tests/wpt/tests/css/css-anchor-position/anchor-css-zoom.html b/tests/wpt/tests/css/css-anchor-position/anchor-css-zoom.html
new file mode 100644
index 00000000000..2fab3f2e562
--- /dev/null
+++ b/tests/wpt/tests/css/css-anchor-position/anchor-css-zoom.html
@@ -0,0 +1,97 @@
+<!DOCTYPE html>
+
+<title>CSS Anchor Positioning: tests that anchor() works with CSS zoom property</title>
+<link rel="help" href="https://drafts.csswg.org/css-anchor-position-1/#anchor-pos">
+<link rel="help" href="https://drafts.csswg.org/css-viewport/#zoom-property">
+<link rel="author" href="mailto:kiet.ho@apple.com">
+<link rel="match" href="reference/anchor-css-zoom-ref.html">
+
+<style>
+    .containing-block {
+        position: relative;
+        width: 150px;
+        height: 150px;
+
+        zoom: 2;
+    }
+
+    .cell {
+        width: 50px;
+        height: 50px;
+    }
+
+    #anchor-cell {
+        position: absolute;
+        top: 50px;
+        left: 50px;
+
+        anchor-name: --anchor;
+
+        background: green;
+    }
+
+    .anchor-positioned-cell {
+        position: absolute;
+        position-anchor: --anchor;
+    }
+
+    #top-left {
+        top: 0;
+        right: anchor(left);
+
+        background: cyan;
+    }
+
+    #top-right {
+        top: 0;
+        left: anchor(right);
+
+        background: magenta;
+    }
+
+    #bottom-left {
+        bottom: 0;
+        right: anchor(left);
+
+        background: yellow;
+    }
+
+    #bottom-right {
+        bottom: 0;
+        left: anchor(right);
+
+        background: black;
+    }
+</style>
+
+<body>
+    <!--
+        The boxes below are arranged like this:
+        (the outside box is .containing-block)
+
+        -------------
+        | 1 |   | 2 |
+        |---|---|---|
+        |   | A |   |
+        |---|---|---|
+        | 3 |   | 4 |
+        -------------
+    -->
+
+    <div class="containing-block">
+        <!-- Box A -->
+        <div class="cell" id="anchor-cell"></div>
+
+        <!-- Box 1 -->
+        <div class="cell anchor-positioned-cell" id="top-left"></div>
+
+        <!-- Box 2 -->
+        <div class="cell anchor-positioned-cell" id="top-right"></div>
+
+        <!-- Box 3 -->
+        <div class="cell anchor-positioned-cell" id="bottom-left"></div>
+
+        <!-- Box 4 -->
+        <div class="cell anchor-positioned-cell" id="bottom-right"></div>
+    </div>
+</body>
\ No newline at end of file
diff --git a/tests/wpt/tests/css/css-anchor-position/anchor-size-css-zoom.html b/tests/wpt/tests/css/css-anchor-position/anchor-size-css-zoom.html
new file mode 100644
index 00000000000..7bd9b799dfe
--- /dev/null
+++ b/tests/wpt/tests/css/css-anchor-position/anchor-size-css-zoom.html
@@ -0,0 +1,49 @@
+<!DOCTYPE html>
+
+<title>CSS Anchor Positioning: tests that anchor-size() works with CSS zoom property</title>
+<link rel="help" href="https://drafts.csswg.org/css-anchor-position-1/#anchor-size-fn">
+<link rel="help" href="https://drafts.csswg.org/css-viewport/#zoom-property">
+<link rel="author" href="mailto:kiet.ho@apple.com">
+<link rel="match" href="reference/anchor-size-css-zoom-ref.html">
+
+<style>
+    #containing-block {
+        position: relative;
+
+        zoom: 2;
+    }
+
+    #anchor {
+        position: absolute;
+
+        width: 200px;
+        height: 100px;
+
+        anchor-name: --anchor;
+
+        background: red;
+    }
+
+    #anchor-positioned {
+        position: absolute;
+
+        width: anchor-size(--anchor width);
+        height: anchor-size(--anchor height);
+
+        background: green;
+
+        z-index: 1;
+    }
+</style>
+
+Test passes if no red is visible.
+
+<div id="containing-block">
+    <!--
+        Both rectangles below overlaps.
+        #anchor is red, #anchor-positioned is green and above #anchor in Z order.
+        If no red is visible then #anchor-positioned has fully covered #anchor.
+    -->
+    <div id="anchor"></div>
+    <div id="anchor-positioned"></div>
+</div>
\ No newline at end of file
diff --git a/tests/wpt/tests/css/css-anchor-position/reference/anchor-css-zoom-ref.html b/tests/wpt/tests/css/css-anchor-position/reference/anchor-css-zoom-ref.html
new file mode 100644
index 00000000000..9ec7e06aa85
--- /dev/null
+++ b/tests/wpt/tests/css/css-anchor-position/reference/anchor-css-zoom-ref.html
@@ -0,0 +1,67 @@
+<!DOCTYPE html>
+
+<style>
+    .containing-block {
+        position: relative;
+        width: 150px;
+        height: 150px;
+
+        zoom: 2;
+    }
+
+    .cell {
+        width: 50px;
+        height: 50px;
+    }
+
+    #anchor-cell {
+        position: absolute;
+        top: 50px;
+        left: 50px;
+
+        background: green;
+    }
+
+    .anchor-positioned-cell {
+        position: absolute;
+    }
+
+    #top-left {
+        top: 0;
+        left: 0;
+
+        background: cyan;
+    }
+
+    #top-right {
+        top: 0;
+        right: 0;
+
+        background: magenta;
+    }
+
+    #bottom-left {
+        bottom: 0;
+        left: 0;
+
+        background: yellow;
+    }
+
+    #bottom-right {
+        bottom: 0;
+        right: 0;
+
+        background: black;
+    }
+</style>
+
+<body>
+    <div class="containing-block">
+        <div class="cell" id="anchor-cell"></div>
+
+        <div class="cell anchor-positioned-cell" id="top-left"></div>
+        <div class="cell anchor-positioned-cell" id="top-right"></div>
+        <div class="cell anchor-positioned-cell" id="bottom-left"></div>
+        <div class="cell anchor-positioned-cell" id="bottom-right"></div>
+    </div>
+</body>
\ No newline at end of file
diff --git a/tests/wpt/tests/css/css-anchor-position/reference/anchor-size-css-zoom-ref.html b/tests/wpt/tests/css/css-anchor-position/reference/anchor-size-css-zoom-ref.html
new file mode 100644
index 00000000000..a4feab487c5
--- /dev/null
+++ b/tests/wpt/tests/css/css-anchor-position/reference/anchor-size-css-zoom-ref.html
@@ -0,0 +1,36 @@
+<!DOCTYPE html>
+
+<style>
+    #containing-block {
+        position: relative;
+
+        zoom: 2;
+    }
+
+    #anchor {
+        position: absolute;
+
+        width: 200px;
+        height: 100px;
+
+        background: red;
+    }
+
+    #anchor-positioned {
+        position: absolute;
+
+        width: 200px;
+        height: 100px;
+
+        background: green;
+
+        z-index: 1;
+    }
+</style>
+
+Test passes if no red is visible.
+
+<div id="containing-block">
+    <div id="anchor"></div>
+    <div id="anchor-positioned"></div>
+</div>
\ No newline at end of file
diff --git a/tests/wpt/tests/css/css-anchor-position/viewport-overflow-hidden-invisible-anchor-crash.html b/tests/wpt/tests/css/css-anchor-position/viewport-overflow-hidden-invisible-anchor-crash.html
new file mode 100644
index 00000000000..b2fa5255b5e
--- /dev/null
+++ b/tests/wpt/tests/css/css-anchor-position/viewport-overflow-hidden-invisible-anchor-crash.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<link rel="help" href="https://drafts.csswg.org/css-anchor-position-1/">
+<link rel="help" href="https://crbug.com/391903229">
+<style>
+html {
+  overflow: hidden;
+}
+.anchor, .element {
+  background: green;
+  width: 100px;
+  height: 100px;
+}
+.anchor {
+  background: red;
+  anchor-name: --anchor;
+}
+.element {
+  position: absolute;
+  position-anchor: --anchor;
+  bottom: anchor(top);
+  left: 50px;
+}
+</style>
+<div style="height: 1000px"></div>
+<div class="element"></div>
+<div style="overflow: auto; width: 50px">
+  <div class="anchor"></div>
+</div>
diff --git a/tests/wpt/tests/css/css-flexbox/flex-shorthand-calc.html b/tests/wpt/tests/css/css-flexbox/flex-shorthand-calc.html
index 6498988dd53..2cbd1c20c28 100644
--- a/tests/wpt/tests/css/css-flexbox/flex-shorthand-calc.html
+++ b/tests/wpt/tests/css/css-flexbox/flex-shorthand-calc.html
@@ -11,6 +11,6 @@
   test_shorthand_value('flex', 'sign(1em - 1px) sibling-index()', {
     'flex-grow': 'sign(1em - 1px)',
     'flex-shrink': 'sibling-index()',
-    'flex-basis': 'auto'
+    'flex-basis': '0%'
   });
 </script>
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/agnostic/gap-decorations-001-ref.html
similarity index 100%
rename from tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-002-ref.html
rename to tests/wpt/tests/css/css-gaps/tentative/agnostic/gap-decorations-001-ref.html
diff --git a/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-001.html b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-001.html
new file mode 100644
index 00000000000..0667693f38c
--- /dev/null
+++ b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-001.html
@@ -0,0 +1,37 @@
+<!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="Javier Contreras" href="mailto:javiercon@microsoft.com">
+<style>
+  .flex-container {
+    display: flex;
+    column-gap: 10px;
+    row-gap: 10px;
+    height: 100px;
+    width: 100px;
+    background: red;
+    column-rule-color: green;
+    column-rule-style: solid;
+    column-rule-width: 10px;
+    row-rule-color: green;
+    row-rule-style: solid;
+    row-rule-width: 10px;
+
+    flex-wrap: wrap;
+  }
+
+  .flex-item {
+    background: green;
+    width: 45px;
+  }
+</style>
+<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+<div class="flex-container">
+    <div class="flex-item"></div>
+    <div class="flex-item"></div>
+    <div class="flex-item"></div>
+    <div class="flex-item"></div>
+</div>
diff --git a/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-002.html b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-002.html
new file mode 100644
index 00000000000..632b690434c
--- /dev/null
+++ b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-002.html
@@ -0,0 +1,39 @@
+<!DOCTYPE html>
+<title>
+  CSS Gap Decorations: flex column gaps are painted with solid styling.
+</title>
+<link rel="help" href="https://drafts.csswg.org/css-gaps-1/">
+<link rel="match" href="../agnostic/gap-decorations-001-ref.html">
+<link rel="author" title="Javier Contreras" href="mailto:javiercon@microsoft.com">
+<style>
+  .flex-container {
+    height: 110px;
+    width: 110px;
+
+    display: flex;
+
+    column-gap: 10px;
+    row-gap: 10px;
+
+    column-rule-color: pink;
+    column-rule-style: solid;
+    column-rule-width: 10px;
+
+    row-rule-color: green;
+    row-rule-style: solid;
+    row-rule-width: 10px;
+
+    flex-wrap: wrap;
+  }
+
+  .flex-item {
+    background: skyblue;
+    width: 50px;
+  }
+</style>
+<div class="flex-container">
+    <div class="flex-item"></div>
+    <div class="flex-item"></div>
+    <div class="flex-item"></div>
+    <div class="flex-item"></div>
+</div>
diff --git a/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-003-ref.html b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-003-ref.html
new file mode 100644
index 00000000000..03a815909f2
--- /dev/null
+++ b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-003-ref.html
@@ -0,0 +1,79 @@
+<!DOCTYPE html>
+<link rel="help" href="https://drafts.csswg.org/css-gaps-1/">
+<link rel="author" title="Javier Contreras" href="mailto:javiercon@microsoft.com">
+<style>
+    body {
+        margin: 0px;
+    }
+
+    #flexbox {
+        border: 2px solid rgb(96 139 168);
+        display: flex;
+        column-gap: 10px;
+        row-gap: 10px;
+        width: 170px;
+        flex-wrap: wrap;
+    }
+
+    .items {
+        background-color: rgb(96 139 168 / 0.2);
+        flex-shrink: 1;
+        width: 50px;
+        height: 50px;
+    }
+
+    #four {
+        width: 100px;
+    }
+
+    .row-gap {
+        margin: 0px;
+        padding: 0px;
+        height: 10px;
+        background: blue;
+        width: 170px;
+        position: absolute;
+    }
+
+    .column-gap {
+        display: flex;
+        flex-direction: column;
+        row-gap: 60px;
+        height: 170px;
+        top: 2px;
+        width: 10px;
+        position: absolute;
+    }
+
+    .column {
+        background: red;
+        width: 10px;
+        height: 55px;
+    }
+</style>
+
+<div id="flexbox">
+    <div class="items">One</div>
+    <div class="items">Two</div>
+    <div class="items">Three</div>
+    <div class="items" id="four">Four</div>
+    <div class="items">Five</div>
+    <div class="items">Six</div>
+    <div class="items">Seven</div>
+    <div class="items">Eight</div>
+</div>
+
+<div id="row1" class="row-gap" style="top: 52px; left: 2px;"></div>
+<div id="row2" class="row-gap" style="top: 112px; left: 2px;"></div>
+
+<div id="columns1" style="left: 52px;" class="column-gap">
+    <div id="c1" class="column"></div>
+    <div id="c2" class="column"></div>
+</div>
+
+<div id="columns2" style="left: 112px;" class="column-gap">
+    <div id="c1" class="column"></div>
+    <div id="c2" class="column"></div>
+</div>
+
+<div id="vertical3" style="left: 102px; position:absolute; top: 57px; height:60px;" class="column"></div>
diff --git a/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-003.html b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-003.html
new file mode 100644
index 00000000000..effab7fee24
--- /dev/null
+++ b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-003.html
@@ -0,0 +1,49 @@
+<!DOCTYPE html>
+<title>
+    CSS Gap Decorations: flex column and row gaps are painted with solid styling.
+</title>
+<link rel="help" href="https://drafts.csswg.org/css-gaps-1/">
+<link rel="match" href="flex-gap-decorations-003-ref.html">
+<link rel="author" title="Javier Contreras" href="mailto:javiercon@microsoft.com">
+<style>
+    body {
+        margin: 0px;
+    }
+
+    #flexbox {
+        border: 2px solid rgb(96 139 168);
+        display: flex;
+        column-gap: 10px;
+        row-gap: 10px;
+        row-rule-style: solid;
+        row-rule-color: blue;
+        row-rule-width: 10px;
+        column-rule-style: solid;
+        column-rule-color: red;
+        column-rule-width: 10px;
+        width: 170px;
+        flex-wrap: wrap;
+    }
+
+    .items {
+        background-color: rgb(96 139 168 / 0.2);
+        flex-shrink: 1;
+        width: 50px;
+        height: 50px;
+    }
+
+    #four {
+        width: 100px;
+    }
+</style>
+
+<div id="flexbox">
+    <div class="items">One</div>
+    <div class="items">Two</div>
+    <div class="items">Three</div>
+    <div class="items" id="four">Four</div>
+    <div class="items">Five</div>
+    <div class="items">Six</div>
+    <div class="items">Seven</div>
+    <div class="items">Eight</div>
+</div>
diff --git a/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-004-ref.html b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-004-ref.html
new file mode 100644
index 00000000000..a1f4e9d666e
--- /dev/null
+++ b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-004-ref.html
@@ -0,0 +1,80 @@
+<!DOCTYPE html>
+<link rel="help" href="https://drafts.csswg.org/css-gaps-1/">
+<link rel="author" title="Javier Contreras" href="mailto:javiercon@microsoft.com">
+<style>
+    body {
+        margin: 0px;
+    }
+
+    #flexbox {
+        border: 2px solid rgb(96 139 168);
+        display: flex;
+        column-gap: 10px;
+        row-gap: 10px;
+        width: 170px;
+        flex-wrap: wrap;
+    }
+
+    .items {
+        background-color: rgb(96 139 168 / 0.2);
+        flex-shrink: 1;
+        width: 50px;
+        height: 50px;
+    }
+
+    #four {
+        width: 100px;
+    }
+
+    .row-gap {
+        margin: 0px;
+        padding: 0px;
+        height: 0px;
+        width: 170px;
+        border-bottom: 10px double;
+      border-color:blue;
+        position: absolute;
+    }
+
+    .column-gap {
+        display: flex;
+        flex-direction: column;
+        row-gap: 60px;
+        height: 170px;
+        top: 2px;
+        width: 10px;
+        position: absolute;
+    }
+
+    .column {
+        width: 0px;
+        border-left: 10px double red;
+        height: 55px;
+    }
+</style>
+
+<div id="flexbox">
+    <div class="items">One</div>
+    <div class="items">Two</div>
+    <div class="items">Three</div>
+    <div class="items" id="four">Four</div>
+    <div class="items">Five</div>
+    <div class="items">Six</div>
+    <div class="items">Seven</div>
+    <div class="items">Eight</div>
+</div>
+
+<div id="row1" class="row-gap" style="top: 52px; left: 2px;"></div>
+<div id="row2" class="row-gap" style="top: 112px; left: 2px;"></div>
+
+<div id="columns1" style="left: 52px;" class="column-gap">
+    <div id="c1" class="column"></div>
+    <div id="c2" class="column"></div>
+</div>
+
+<div id="columns2" style="left: 112px;" class="column-gap">
+    <div id="c1" class="column"></div>
+    <div id="c2" class="column"></div>
+</div>
+
+<div id="column3" style="left: 102px; position:absolute; top: 57px; height:60px;" class="column"></div>
diff --git a/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-004.html b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-004.html
new file mode 100644
index 00000000000..a5c0698e7fa
--- /dev/null
+++ b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-004.html
@@ -0,0 +1,49 @@
+<!DOCTYPE html>
+<title>
+    CSS Gap Decorations: flex column and row gaps are painted with double styling.
+</title>
+<link rel="help" href="https://drafts.csswg.org/css-gaps-1/">
+<link rel="match" href="flex-gap-decorations-004-ref.html">
+<link rel="author" title="Javier Contreras" href="mailto:javiercon@microsoft.com">
+<style>
+    body {
+        margin: 0px;
+    }
+
+    #flexbox {
+        border: 2px solid rgb(96 139 168);
+        display: flex;
+        column-gap: 10px;
+        row-gap: 10px;
+        row-rule-style: double;
+        row-rule-color: blue;
+        row-rule-width: 10px;
+        column-rule-style: double;
+        column-rule-color: red;
+        column-rule-width: 10px;
+        width: 170px;
+        flex-wrap: wrap;
+    }
+
+    .items {
+        background-color: rgb(96 139 168 / 0.2);
+        flex-shrink: 1;
+        width: 50px;
+        height: 50px;
+    }
+
+    #four {
+        width: 100px;
+    }
+</style>
+
+<div id="flexbox">
+    <div class="items">One</div>
+    <div class="items">Two</div>
+    <div class="items">Three</div>
+    <div class="items" id="four">Four</div>
+    <div class="items">Five</div>
+    <div class="items">Six</div>
+    <div class="items">Seven</div>
+    <div class="items">Eight</div>
+</div>
diff --git a/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-005-ref.html b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-005-ref.html
new file mode 100644
index 00000000000..020fdb1c8db
--- /dev/null
+++ b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-005-ref.html
@@ -0,0 +1,80 @@
+<!DOCTYPE html>
+<link rel="help" href="https://drafts.csswg.org/css-gaps-1/">
+<link rel="author" title="Javier Contreras" href="mailto:javiercon@microsoft.com">
+<style>
+    body {
+        margin: 0px;
+    }
+
+    #flexbox {
+        border: 2px solid rgb(96 139 168);
+        display: flex;
+        column-gap: 10px;
+        row-gap: 10px;
+        width: 170px;
+        flex-wrap: wrap;
+    }
+
+    .items {
+        background-color: rgb(96 139 168 / 0.2);
+        flex-shrink: 1;
+        width: 50px;
+        height: 50px;
+    }
+
+    #four {
+        width: 100px;
+    }
+
+    .row-gap {
+        margin: 0px;
+        padding: 0px;
+        height: 0px;
+        width: 170px;
+        left: 2px;
+        position: absolute;
+        border-bottom: 10px dotted blue;
+    }
+
+    .column-gap {
+        display: flex;
+        flex-direction: column;
+        row-gap: 60px;
+        height: 170px;
+        top: 2px;
+        width: 10px;
+        position: absolute;
+    }
+
+    .column {
+        width: 0px;
+        border-left: 10px dotted red;
+        height: 55px;
+    }
+</style>
+
+<div id="flexbox">
+    <div class="items">One</div>
+    <div class="items">Two</div>
+    <div class="items">Three</div>
+    <div class="items" id="four">Four</div>
+    <div class="items">Five</div>
+    <div class="items">Six</div>
+    <div class="items">Seven</div>
+    <div class="items">Eight</div>
+</div>
+
+<div class="row-gap" style="top: 52px"></div>
+<div class="row-gap" style="top: 112px"></div>
+
+<div id="columns1" style="left: 52px;" class="column-gap">
+    <div id="c1" class="column"></div>
+    <div id="c2" class="column"></div>
+</div>
+
+<div id="columns2" style="left: 112px;" class="column-gap">
+    <div id="c1" class="column"></div>
+    <div id="c2" class="column"></div>
+</div>
+
+<div id="column3" style="left: 102px; position:absolute; top: 57px; height:60px;" class="column"></div>
diff --git a/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-005.html b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-005.html
new file mode 100644
index 00000000000..1688d447d50
--- /dev/null
+++ b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-005.html
@@ -0,0 +1,49 @@
+<!DOCTYPE html>
+<title>
+    CSS Gap Decorations: flex column and row gaps are painted with dotted styling.
+</title>
+<link rel="help" href="https://drafts.csswg.org/css-gaps-1/">
+<link rel="match" href="flex-gap-decorations-005-ref.html">
+<link rel="author" title="Javier Contreras" href="mailto:javiercon@microsoft.com">
+<style>
+    body {
+        margin: 0px;
+    }
+
+    #flexbox {
+        border: 2px solid rgb(96 139 168);
+        display: flex;
+        column-gap: 10px;
+        row-gap: 10px;
+        row-rule-style: dotted;
+        row-rule-color: blue;
+        row-rule-width: 10px;
+        column-rule-style: dotted;
+        column-rule-color: red;
+        column-rule-width: 10px;
+        width: 170px;
+        flex-wrap: wrap;
+    }
+
+    .items {
+        background-color: rgb(96 139 168 / 0.2);
+        flex-shrink: 1;
+        width: 50px;
+        height: 50px;
+    }
+
+    #four {
+        width: 100px;
+    }
+</style>
+
+<div id="flexbox">
+    <div class="items">One</div>
+    <div class="items">Two</div>
+    <div class="items">Three</div>
+    <div class="items" id="four">Four</div>
+    <div class="items">Five</div>
+    <div class="items">Six</div>
+    <div class="items">Seven</div>
+    <div class="items">Eight</div>
+</div>
diff --git a/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-006-ref.html b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-006-ref.html
new file mode 100644
index 00000000000..701d36f93bb
--- /dev/null
+++ b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-006-ref.html
@@ -0,0 +1,65 @@
+<!DOCTYPE html>
+<link rel="help" href="https://drafts.csswg.org/css-gaps-1/">
+<link rel="author" title="Javier Contreras" href="mailto:javiercon@microsoft.com">
+<style>
+    body {
+        margin: 0px;
+    }
+
+    #flexbox>* {
+        background-color: rgb(96 139 168 / 0.2);
+    }
+
+    #flexbox {
+        border: 2px solid rgb(96 139 168);
+        border-width: 2px;
+        display: flex;
+        column-gap: 10px;
+        row-gap: 30px;
+        height: 300px;
+        width: 300px;
+        flex-wrap: wrap;
+        align-content: center;
+        writing-mode: vertical-lr;
+    }
+
+    .items {
+        width: 70px;
+        height: 70px;
+    }
+
+    .row-gap {
+        background-color: blue;
+        margin: 0px;
+        padding: 0px;
+        height: 300px;
+        width: 30px;
+        top: 2px;
+        left: 137px;
+        position: absolute;
+    }
+
+    .column-gap {
+        background-color: red;
+        margin: 0px;
+        padding: 0px;
+        height: 10px;
+        width: 170px;
+        left: 67px;
+        position: absolute;
+    }
+</style>
+
+<div id="flexbox">
+    <div class="items">One</div>
+    <div class="items">Two</div>
+    <div class="items">Three</div>
+    <div class="items">Four</div>
+    <div class="items">Five</div>
+    <div class="items">Six</div>
+</div>
+
+<div id="horizontal1" class="row-gap"></div>
+
+<div id="column1" class="column-gap" style="top:72px;"></div>
+<div id="column2" class="column-gap" style="top: 152px;"></div>
diff --git a/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-006.html b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-006.html
new file mode 100644
index 00000000000..3d7dbfd9fed
--- /dev/null
+++ b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-006.html
@@ -0,0 +1,49 @@
+<!DOCTYPE html>
+<title>
+    CSS Gap Decorations: flex column and row gaps are painted in vertical-lr and center aligned.
+</title>
+<link rel="help" href="https://drafts.csswg.org/css-gaps-1/">
+<link rel="match" href="flex-gap-decorations-006-ref.html">
+<link rel="author" title="Javier Contreras" href="mailto:javiercon@microsoft.com">
+<style>
+    body {
+        margin: 0px;
+    }
+
+    #flexbox>* {
+        background-color: rgb(96 139 168 / 0.2);
+    }
+
+    #flexbox {
+        border: 2px solid rgb(96 139 168);
+        border-width: 2px;
+        display: flex;
+        column-gap: 10px;
+        column-rule-style: solid;
+        column-rule-width: 10px;
+        column-rule-color: red;
+        row-gap: 30px;
+        row-rule-style: solid;
+        row-rule-width: 30px;
+        row-rule-color: blue;
+        height: 300px;
+        width: 300px;
+        flex-wrap: wrap;
+        align-content: center;
+        writing-mode: vertical-lr;
+    }
+
+    .items {
+        width: 70px;
+        height: 70px;
+    }
+</style>
+
+<div id="flexbox">
+    <div class="items">One</div>
+    <div class="items">Two</div>
+    <div class="items">Three</div>
+    <div class="items">Four</div>
+    <div class="items">Five</div>
+    <div class="items">Six</div>
+</div>
diff --git a/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-007-ref.html b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-007-ref.html
new file mode 100644
index 00000000000..8511c66acf4
--- /dev/null
+++ b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-007-ref.html
@@ -0,0 +1,50 @@
+<!DOCTYPE html>
+<link rel="help" href="https://drafts.csswg.org/css-gaps-1/">
+<link rel="author" title="Javier Contreras" href="mailto:javiercon@microsoft.com">
+<style>
+    body {
+        margin: 0px;
+    }
+
+    #flexbox>* {
+        background-color: rgb(96 139 168 / 0.2);
+    }
+
+    #flexbox {
+        border: 2px solid rgb(96 139 168);
+        border-width: 2px;
+        display: flex;
+        column-gap: 10px;
+        width: 170px;
+        flex-wrap: wrap;
+        align-items: flex-end;
+    }
+
+    .items {
+        width: 50px;
+    }
+
+    .column-gap {
+        background-color: red;
+        margin: 0px;
+        padding: 0px;
+        height: 10px;
+        width: 10px;
+        position: absolute;
+        top:2px;
+        height: 40px;
+    }
+
+    #three {
+        height: 40px;
+    }
+</style>
+
+<div id="flexbox">
+    <div class="items">One</div>
+    <div class="items">Two</div>
+    <div class="items" id="three">Three</div>
+</div>
+
+<div id="column1" class="column-gap" style="left: 52px;"></div>
+<div id="column2" class="column-gap" style="left: 112px;"></div>
diff --git a/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-007.html b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-007.html
new file mode 100644
index 00000000000..34853bb3206
--- /dev/null
+++ b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-007.html
@@ -0,0 +1,43 @@
+<!DOCTYPE html>
+<title>
+    CSS Gap Decorations: flex column and row gaps are painted align-items.
+</title>
+<link rel="help" href="https://drafts.csswg.org/css-gaps-1/">
+<link rel="match" href="flex-gap-decorations-007-ref.html">
+<link rel="author" title="Javier Contreras" href="mailto:javiercon@microsoft.com">
+<style>
+    body {
+        margin: 0px;
+    }
+
+    #flexbox>* {
+        background-color: rgb(96 139 168 / 0.2);
+    }
+
+    #flexbox {
+        border: 2px solid rgb(96 139 168);
+        border-width: 2px;
+        display: flex;
+        column-gap: 10px;
+        column-rule-style: solid;
+        column-rule-width: 10px;
+        column-rule-color: red;
+        width: 170px;
+        flex-wrap: wrap;
+        align-items: flex-end;
+    }
+
+    .items {
+        width: 50px;
+    }
+
+    #three {
+        height: 40px;
+    }
+</style>
+
+<div id="flexbox">
+    <div class="items">One</div>
+    <div class="items">Two</div>
+    <div class="items" id="three">Three</div>
+</div>
diff --git a/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-008-ref.html b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-008-ref.html
new file mode 100644
index 00000000000..8ca5749417f
--- /dev/null
+++ b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-008-ref.html
@@ -0,0 +1,63 @@
+<!DOCTYPE html>
+<link rel="help" href="https://drafts.csswg.org/css-gaps-1/">
+<link rel="author" title="Javier Contreras" href="mailto:javiercon@microsoft.com">
+<style>
+    body {
+        margin: 0px;
+    }
+
+    #flexbox>* {
+        background-color: rgb(96 139 168 / 0.2);
+    }
+
+    #flexbox {
+        border: 2px solid rgb(96 139 168);
+        border-width: 2px;
+        display: flex;
+        column-gap: 10px;
+        width: 200px;
+        flex-wrap: nowrap;
+    }
+
+    .items {
+        width: 50px;
+        height: 50px;
+        flex-shrink: 0;
+    }
+
+    .column-gap {
+        display: flex;
+        margin: 0px;
+        padding: 0px;
+        height: 10px;
+        width: 300px;
+        position: absolute;
+        top:2px;
+        height: 50px;
+        left: 52px;
+        column-gap: 50px;
+    }
+
+    .columns {
+        background-color: red;
+        width: 10px;
+        height: 50px;
+    }
+</style>
+
+<div id="flexbox">
+  <div class="items">One</div>
+  <div class="items">Two</div>
+  <div class="items">Three</div>
+  <div class="items">Four</div>
+  <div class="items">Five</div>
+  <div class="items">Six</div>
+</div>
+
+<div class="column-gap">
+  <div class="columns"></div>
+  <div class="columns"></div>
+  <div class="columns"></div>
+  <div class="columns"></div>
+  <div class="columns"></div>
+</div>
diff --git a/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-008.html b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-008.html
new file mode 100644
index 00000000000..bd4e73c158c
--- /dev/null
+++ b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-008.html
@@ -0,0 +1,43 @@
+<!DOCTYPE html>
+<title>
+    CSS Gap Decorations: flex column gaps are painted on overflowing items.
+</title>
+<link rel="help" href="https://drafts.csswg.org/css-gaps-1/">
+<link rel="match" href="flex-gap-decorations-008-ref.html">
+<link rel="author" title="Javier Contreras" href="mailto:javiercon@microsoft.com">
+<style>
+    body {
+        margin: 0px;
+    }
+
+    #flexbox>* {
+        background-color: rgb(96 139 168 / 0.2);
+    }
+
+    #flexbox {
+        border: 2px solid rgb(96 139 168);
+        border-width: 2px;
+        display: flex;
+        column-gap: 10px;
+        column-rule-style: solid;
+        column-rule-width: 10px;
+        column-rule-color: red;
+        width: 200px;
+        flex-wrap: nowrap;
+    }
+
+    .items {
+        width: 50px;
+        height: 50px;
+        flex-shrink: 0;
+    }
+</style>
+
+<div id="flexbox">
+    <div class="items">One</div>
+    <div class="items">Two</div>
+    <div class="items">Three</div>
+    <div class="items">Four</div>
+    <div class="items">Five</div>
+    <div class="items">Six</div>
+</div>
diff --git a/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-009-ref.html b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-009-ref.html
new file mode 100644
index 00000000000..2071e3fce60
--- /dev/null
+++ b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-009-ref.html
@@ -0,0 +1,95 @@
+<!DOCTYPE html>
+<link rel="help" href="https://drafts.csswg.org/css-gaps-1/">
+<link rel="author" title="Javier Contreras" href="mailto:javiercon@microsoft.com">
+<style>
+    body {
+        margin: 0px;
+    }
+
+    #flexbox {
+        border: 2px solid rgb(96 139 168);
+        display: flex;
+        column-gap: 10px;
+        row-gap: 10px;
+        width: 170px;
+        flex-wrap: wrap;
+    }
+
+    .items {
+        background-color: rgb(96 139 168 / 0.2);
+        flex-shrink: 1;
+        width: 50px;
+        height: 50px;
+    }
+
+    #four {
+        width: 100px;
+    }
+
+    .row-gap {
+        display: flex;
+        margin: 0px;
+        padding: 0px;
+        height: 10px;
+        width: 170px;
+        position: absolute;
+      column-gap: 10px
+    }
+
+  .row {
+    background: blue;
+    width: 50px;
+    height: 10px;
+  }
+
+    .column-gap {
+        display: flex;
+        flex-direction: column;
+        row-gap: 70px;
+        height: 170px;
+        top: 2px;
+        width: 10px;
+        position: absolute;
+    }
+
+    .column {
+        background: red;
+        width: 10px;
+        height: 50px;
+    }
+</style>
+
+<div id="flexbox">
+    <div class="items">One</div>
+    <div class="items">Two</div>
+    <div class="items">Three</div>
+    <div class="items" id="four">Four</div>
+    <div class="items">Five</div>
+    <div class="items">Six</div>
+    <div class="items">Seven</div>
+    <div class="items">Eight</div>
+</div>
+
+<div id="row1" class="row-gap" style="top: 52px; left: 2px;">
+  <div id="r1" class="row"></div>
+  <div id="r2" style="width: 40px" class="row"></div>
+  <div id="r2" style="margin-left: auto" class="row"></div>
+</div>
+
+<div id="row2" class="row-gap" style="top: 112px; left: 2px;">
+  <div id="r3" class="row"></div>
+  <div id="r4" style="width: 40px" class="row"></div>
+  <div id="r5" style="margin-left: auto" class="row"></div>
+</div>
+
+<div id="columns1" style="left: 52px;" class="column-gap">
+    <div id="c1" class="column"></div>
+    <div id="c2" class="column"></div>
+</div>
+
+<div id="columns2" style="left: 112px;" class="column-gap">
+    <div id="c1" class="column"></div>
+    <div id="c2" class="column"></div>
+</div>
+
+<div id="columns3" style="left: 102px; position:absolute; top: 62px; height:50px;" class="column"></div>
diff --git a/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-009.html b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-009.html
new file mode 100644
index 00000000000..6bb406c5b01
--- /dev/null
+++ b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-009.html
@@ -0,0 +1,53 @@
+<!DOCTYPE html>
+<title>
+    CSS Gap Decorations: flex column and row gaps are painted with intersection rule break.
+</title>
+<link rel="help" href="https://drafts.csswg.org/css-gaps-1/">
+<link rel="match" href="flex-gap-decorations-009-ref.html">
+<link rel="author" title="Javier Contreras" href="mailto:javiercon@microsoft.com">
+<style>
+    body {
+        margin: 0px;
+    }
+
+    #flexbox {
+        border: 2px solid rgb(96 139 168);
+        display: flex;
+        column-gap: 10px;
+        row-gap: 10px;
+        row-rule-style: solid;
+        row-rule-color: blue;
+        row-rule-width: 10px;
+        row-rule-break: intersection;
+        row-rule-outset: 0;
+        column-rule-break: intersection;
+        column-rule-style: solid;
+        column-rule-color: red;
+        column-rule-width: 10px;
+        column-rule-outset: 0;
+        width: 170px;
+        flex-wrap: wrap;
+    }
+
+    .items {
+        background-color: rgb(96 139 168 / 0.2);
+        flex-shrink: 1;
+        width: 50px;
+        height: 50px;
+    }
+
+    #four {
+        width: 100px;
+    }
+</style>
+
+<div id="flexbox">
+    <div class="items">One</div>
+    <div class="items">Two</div>
+    <div class="items">Three</div>
+    <div class="items" id="four">Four</div>
+    <div class="items">Five</div>
+    <div class="items">Six</div>
+    <div class="items">Seven</div>
+    <div class="items">Eight</div>
+</div>
diff --git a/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-010-ref.html b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-010-ref.html
new file mode 100644
index 00000000000..c20df7fcda1
--- /dev/null
+++ b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-010-ref.html
@@ -0,0 +1,82 @@
+<!DOCTYPE html>
+<link rel="help" href="https://drafts.csswg.org/css-gaps-1/">
+<link rel="author" title="Javier Contreras" href="mailto:javiercon@microsoft.com">
+<style>
+    body {
+        margin: 0px;
+    }
+
+    #flexbox {
+        border: 2px solid rgb(96 139 168);
+        display: flex;
+        column-gap: 10px;
+        row-gap: 10px;
+        width: 170px;
+        flex-wrap: wrap;
+    }
+
+    .items {
+        background-color: rgb(96 139 168 / 0.2);
+        flex-shrink: 1;
+        width: 50px;
+        height: 50px;
+    }
+
+    #four {
+        width: 100px;
+    }
+
+    .row-gap {
+        margin: 0px;
+        padding: 0px;
+        height: 10px;
+        width: 170px;
+        position: absolute;
+        background: blue;
+    }
+
+    .column-gap {
+        display: flex;
+        flex-direction: column;
+        row-gap: 70px;
+        height: 170px;
+        top: 2px;
+        width: 10px;
+        position: absolute;
+    }
+
+    .column {
+        background: red;
+        width: 10px;
+        height: 50px;
+    }
+</style>
+
+<div id="flexbox">
+    <div class="items">One</div>
+    <div class="items">Two</div>
+    <div class="items">Three</div>
+    <div class="items" id="four">Four</div>
+    <div class="items">Five</div>
+    <div class="items">Six</div>
+    <div class="items">Seven</div>
+    <div class="items">Eight</div>
+</div>
+
+<div id="row1" class="row-gap" style="top: 52px; left: 2px;">
+</div>
+
+<div id="row2" class="row-gap" style="top: 112px; left: 2px;">
+</div>
+
+<div id="columns1" style="left: 52px;" class="column-gap">
+    <div id="c1" class="column"></div>
+    <div id="c2" class="column"></div>
+</div>
+
+<div id="columns2" style="left: 112px;" class="column-gap">
+    <div id="c1" class="column"></div>
+    <div id="c2" class="column"></div>
+</div>
+
+<div id="columns3" style="left: 102px; position:absolute; top: 62px; height:50px;" class="column"></div>
diff --git a/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-010.html b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-010.html
new file mode 100644
index 00000000000..49f6ec962ad
--- /dev/null
+++ b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-010.html
@@ -0,0 +1,51 @@
+<!DOCTYPE html>
+<title>
+    CSS Gap Decorations: flex column and row gaps are painted with intersection column rule break.
+</title>
+<link rel="help" href="https://drafts.csswg.org/css-gaps-1/">
+<link rel="match" href="flex-gap-decorations-010-ref.html">
+<link rel="author" title="Javier Contreras" href="mailto:javiercon@microsoft.com">
+<style>
+    body {
+        margin: 0px;
+    }
+
+    #flexbox {
+        border: 2px solid rgb(96 139 168);
+        display: flex;
+        column-gap: 10px;
+        row-gap: 10px;
+        row-rule-style: solid;
+        row-rule-color: blue;
+        row-rule-width: 10px;
+        column-rule-break: intersection;
+        column-rule-style: solid;
+        column-rule-color: red;
+        column-rule-width: 10px;
+        column-rule-outset: 0;
+        width: 170px;
+        flex-wrap: wrap;
+    }
+
+    .items {
+        background-color: rgb(96 139 168 / 0.2);
+        flex-shrink: 1;
+        width: 50px;
+        height: 50px;
+    }
+
+    #four {
+        width: 100px;
+    }
+</style>
+
+<div id="flexbox">
+    <div class="items">One</div>
+    <div class="items">Two</div>
+    <div class="items">Three</div>
+    <div class="items" id="four">Four</div>
+    <div class="items">Five</div>
+    <div class="items">Six</div>
+    <div class="items">Seven</div>
+    <div class="items">Eight</div>
+</div>
diff --git a/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-011-ref.html b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-011-ref.html
new file mode 100644
index 00000000000..61d3e83dc2f
--- /dev/null
+++ b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-011-ref.html
@@ -0,0 +1,79 @@
+<!DOCTYPE html>
+<link rel="help" href="https://drafts.csswg.org/css-gaps-1/">
+<link rel="author" title="Javier Contreras" href="mailto:javiercon@microsoft.com">
+<style>
+    body {
+        margin: 0px;
+    }
+
+    #flexbox {
+        border: 2px solid rgb(96 139 168);
+        display: flex;
+        column-gap: 10px;
+        row-gap: 10px;
+        width: 170px;
+        flex-wrap: wrap;
+    }
+
+    .items {
+        background-color: rgb(96 139 168 / 0.2);
+        flex-shrink: 1;
+        width: 50px;
+        height: 50px;
+    }
+
+    #four {
+        width: 100px;
+    }
+
+    .row-gap {
+        margin: 0px;
+        padding: 0px;
+        height: 2px;
+        background: blue;
+        width: 170px;
+        position: absolute;
+    }
+
+    .column-gap {
+        display: flex;
+        flex-direction: column;
+        row-gap: 66px;
+        height: 174px;
+        top: 0px;
+        width: 10px;
+        position: absolute;
+    }
+
+    .column {
+        background: red;
+        width: 2px;
+        height: 54px;
+    }
+</style>
+
+<div id="flexbox">
+    <div class="items">One</div>
+    <div class="items">Two</div>
+    <div class="items">Three</div>
+    <div class="items" id="four">Four</div>
+    <div class="items">Five</div>
+    <div class="items">Six</div>
+    <div class="items">Seven</div>
+    <div class="items">Eight</div>
+</div>
+
+<div id="row1" class="row-gap" style="top: 56px; left: 2px;"></div>
+<div id="row2" class="row-gap" style="top: 116px; left: 2px;"></div>
+
+<div id="columns1" style="left: 56px;" class="column-gap">
+    <div id="c1" class="column"></div>
+    <div id="c2" class="column"></div>
+</div>
+
+<div id="columns2" style="left: 116px;" class="column-gap">
+    <div id="c1" class="column"></div>
+    <div id="c2" class="column"></div>
+</div>
+
+<div id="columns3" style="left: 106px; position:absolute; top: 60px; height:54px;" class="column"></div>
diff --git a/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-011.html b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-011.html
new file mode 100644
index 00000000000..7b142e54ec7
--- /dev/null
+++ b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-011.html
@@ -0,0 +1,51 @@
+<!DOCTYPE html>
+<title>
+    CSS Gap Decorations: flex column and row gaps are painted column break intersection and 2px outset.
+</title>
+<link rel="help" href="https://drafts.csswg.org/css-gaps-1/">
+<link rel="match" href="flex-gap-decorations-011-ref.html">
+<link rel="author" title="Javier Contreras" href="mailto:javiercon@microsoft.com">
+<style>
+    body {
+        margin: 0px;
+    }
+
+    #flexbox {
+        border: 2px solid rgb(96 139 168);
+        display: flex;
+        column-gap: 10px;
+        row-gap: 10px;
+        row-rule-style: solid;
+        row-rule-color: blue;
+        row-rule-width: 2px;
+        column-rule-style: solid;
+        column-rule-color: red;
+        column-rule-width: 2px;
+        column-rule-break: intersection;
+        column-rule-outset: 2px;
+        width: 170px;
+        flex-wrap: wrap;
+    }
+
+    .items {
+        background-color: rgb(96 139 168 / 0.2);
+        flex-shrink: 1;
+        width: 50px;
+        height: 50px;
+    }
+
+    #four {
+        width: 100px;
+    }
+</style>
+
+<div id="flexbox">
+    <div class="items">One</div>
+    <div class="items">Two</div>
+    <div class="items">Three</div>
+    <div class="items" id="four">Four</div>
+    <div class="items">Five</div>
+    <div class="items">Six</div>
+    <div class="items">Seven</div>
+    <div class="items">Eight</div>
+</div>
diff --git a/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-013-ref.html b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-013-ref.html
new file mode 100644
index 00000000000..3d999788023
--- /dev/null
+++ b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-013-ref.html
@@ -0,0 +1,79 @@
+<!DOCTYPE html>
+<link rel="help" href="https://drafts.csswg.org/css-gaps-1/">
+<link rel="author" title="Javier Contreras" href="mailto:javiercon@microsoft.com">
+<style>
+    body {
+        margin: 0px;
+    }
+
+    #flexbox {
+        border: 2px solid rgb(96 139 168);
+        display: flex;
+        column-gap: 10px;
+        row-gap: 10px;
+        width: 170px;
+        flex-wrap: wrap;
+    }
+
+    .items {
+        background-color: rgb(96 139 168 / 0.2);
+        flex-shrink: 1;
+        width: 50px;
+        height: 50px;
+    }
+
+    #four {
+        width: 100px;
+    }
+
+    .row-gap {
+        margin: 0px;
+        padding: 0px;
+        height: 2px;
+        background: blue;
+        width: 170px;
+        position: absolute;
+    }
+
+    .column-gap {
+        display: flex;
+        flex-direction: column;
+        row-gap: 74px;
+        height: 174px;
+        top: 4px;
+        width: 10px;
+        position: absolute;
+    }
+
+    .column {
+        background: red;
+        width: 2px;
+        height: 46px;
+    }
+</style>
+
+<div id="flexbox">
+    <div class="items">One</div>
+    <div class="items">Two</div>
+    <div class="items">Three</div>
+    <div class="items" id="four">Four</div>
+    <div class="items">Five</div>
+    <div class="items">Six</div>
+    <div class="items">Seven</div>
+    <div class="items">Eight</div>
+</div>
+
+<div id="row1" class="row-gap" style="top: 56px; left: 2px;"></div>
+<div id="row2" class="row-gap" style="top: 116px; left: 2px;"></div>
+
+<div id="columns1" style="left: 56px;" class="column-gap">
+    <div id="c1" class="column"></div>
+    <div id="c2" class="column"></div>
+</div>
+
+<div id="columns2" style="left: 116px;" class="column-gap">
+    <div id="c1" class="column"></div>
+    <div id="c2" class="column"></div>
+</div>
+
+<div id="columns3" style="left: 106px; position:absolute; top: 64px; height:46px;" class="column"></div>
diff --git a/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-013.html b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-013.html
new file mode 100644
index 00000000000..1cdf1c27496
--- /dev/null
+++ b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-013.html
@@ -0,0 +1,51 @@
+<!DOCTYPE html>
+<title>
+    CSS Gap Decorations: flex column and row gaps are painted column break intersection and -2px outset.
+</title>
+<link rel="help" href="https://drafts.csswg.org/css-gaps-1/">
+<link rel="match" href="flex-gap-decorations-013-ref.html">
+<link rel="author" title="Javier Contreras" href="mailto:javiercon@microsoft.com">
+<style>
+    body {
+        margin: 0px;
+    }
+
+    #flexbox {
+        border: 2px solid rgb(96 139 168);
+        display: flex;
+        column-gap: 10px;
+        row-gap: 10px;
+        row-rule-style: solid;
+        row-rule-color: blue;
+        row-rule-width: 2px;
+        column-rule-style: solid;
+        column-rule-color: red;
+        column-rule-width: 2px;
+        column-rule-break: intersection;
+        column-rule-outset: -2px;
+        width: 170px;
+        flex-wrap: wrap;
+    }
+
+    .items {
+        background-color: rgb(96 139 168 / 0.2);
+        flex-shrink: 1;
+        width: 50px;
+        height: 50px;
+    }
+
+    #four {
+        width: 100px;
+    }
+</style>
+
+<div id="flexbox">
+    <div class="items">One</div>
+    <div class="items">Two</div>
+    <div class="items">Three</div>
+    <div class="items" id="four">Four</div>
+    <div class="items">Five</div>
+    <div class="items">Six</div>
+    <div class="items">Seven</div>
+    <div class="items">Eight</div>
+</div>
diff --git a/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-014-ref.html b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-014-ref.html
new file mode 100644
index 00000000000..ab28707785e
--- /dev/null
+++ b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-014-ref.html
@@ -0,0 +1,79 @@
+<!DOCTYPE html>
+<link rel="help" href="https://drafts.csswg.org/css-gaps-1/">
+<link rel="author" title="Javier Contreras" href="mailto:javiercon@microsoft.com">
+<style>
+    body {
+        margin: 0px;
+    }
+
+    #flexbox {
+        border: 2px solid rgb(96 139 168);
+        display: flex;
+        column-gap: 10px;
+        row-gap: 10px;
+        width: 170px;
+        flex-wrap: wrap;
+    }
+
+    .items {
+        background-color: rgb(96 139 168 / 0.2);
+        flex-shrink: 1;
+        width: 50px;
+        height: 50px;
+    }
+
+    #four {
+        width: 100px;
+    }
+
+    .row-gap {
+        margin: 0px;
+        padding: 0px;
+        height: 2px;
+        background: blue;
+        width: 170px;
+        position: absolute;
+    }
+
+    .column-gap {
+        display: flex;
+        flex-direction: column;
+        row-gap: 50px;
+        height: 174px;
+        top: 2px;
+        width: 10px;
+        position: absolute;
+    }
+
+    .column {
+        background: red;
+        width: 2px;
+        height: 60px;
+    }
+</style>
+
+<div id="flexbox">
+    <div class="items">One</div>
+    <div class="items">Two</div>
+    <div class="items">Three</div>
+    <div class="items" id="four">Four</div>
+    <div class="items">Five</div>
+    <div class="items">Six</div>
+    <div class="items">Seven</div>
+    <div class="items">Eight</div>
+</div>
+
+<div id="row1" class="row-gap" style="top: 56px; left: 2px;"></div>
+<div id="row2" class="row-gap" style="top: 116px; left: 2px;"></div>
+
+<div id="columns1" style="left: 56px;" class="column-gap">
+    <div id="c1" class="column"></div>
+    <div id="c2" class="column"></div>
+</div>
+
+<div id="columns2" style="left: 116px;" class="column-gap">
+    <div id="c1" class="column"></div>
+    <div id="c2" class="column"></div>
+</div>
+
+<div id="columns3" style="left: 106px; position:absolute; top: 52px; height:70px;" class="column"></div>
diff --git a/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-014.html b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-014.html
new file mode 100644
index 00000000000..b7d19549e03
--- /dev/null
+++ b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-014.html
@@ -0,0 +1,51 @@
+<!DOCTYPE html>
+<title>
+    CSS Gap Decorations: flex column and row gaps are painted column break intersection and 100% outset.
+</title>
+<link rel="help" href="https://drafts.csswg.org/css-gaps-1/">
+<link rel="match" href="flex-gap-decorations-014-ref.html">
+<link rel="author" title="Javier Contreras" href="mailto:javiercon@microsoft.com">
+<style>
+    body {
+        margin: 0px;
+    }
+
+    #flexbox {
+        border: 2px solid rgb(96 139 168);
+        display: flex;
+        column-gap: 10px;
+        row-gap: 10px;
+        row-rule-style: solid;
+        row-rule-color: blue;
+        row-rule-width: 2px;
+        column-rule-style: solid;
+        column-rule-color: red;
+        column-rule-width: 2px;
+        column-rule-break: intersection;
+        column-rule-outset: 100%;
+        width: 170px;
+        flex-wrap: wrap;
+    }
+
+    .items {
+        background-color: rgb(96 139 168 / 0.2);
+        flex-shrink: 1;
+        width: 50px;
+        height: 50px;
+    }
+
+    #four {
+        width: 100px;
+    }
+</style>
+
+<div id="flexbox">
+    <div class="items">One</div>
+    <div class="items">Two</div>
+    <div class="items">Three</div>
+    <div class="items" id="four">Four</div>
+    <div class="items">Five</div>
+    <div class="items">Six</div>
+    <div class="items">Seven</div>
+    <div class="items">Eight</div>
+</div>
diff --git a/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-015.html b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-015.html
new file mode 100644
index 00000000000..6cba13ba216
--- /dev/null
+++ b/tests/wpt/tests/css/css-gaps/tentative/flex/flex-gap-decorations-015.html
@@ -0,0 +1,46 @@
+<!DOCTYPE html>
+<title>
+    CSS Gap Decorations: flex column and row gaps are painted column flex direction
+</title>
+<link rel="help" href="https://drafts.csswg.org/css-gaps-1/">
+<link rel="match" href="flex-gap-decorations-014-ref.html">
+<link rel="author" title="Javier Contreras" href="mailto:javiercon@microsoft.com">
+<style>
+    body {
+        margin: 0px;
+    }
+
+    #flexbox {
+        border: 2px solid rgb(96 139 168);
+        display: flex;
+        column-gap: 20px;
+        row-gap: 10px;
+        width: 120px;
+        height: 170px;
+        flex-wrap: wrap;
+        flex-direction: column;
+        column-rule-style: solid;
+        column-rule-color: red;
+        column-rule-width: 20px;
+        row-rule-style: solid;
+        row-rule-color: blue;
+        row-rule-width: 10px;
+    }
+
+    .items {
+        background-color: rgb(96 139 168 / 0.2);
+        flex-shrink: 1;
+        width: 50px;
+        height: 50px;
+    }
+
+</style>
+
+<div id="flexbox">
+    <div class="items">One</div>
+    <div class="items">Two</div>
+    <div class="items">Three</div>
+    <div class="items">Four</div>
+    <div class="items">Five</div>
+    <div class="items">Six</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
index 429798d0fe7..dfc4198b078 100644
--- 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
@@ -3,7 +3,7 @@
   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="match" href="../agnostic/gap-decorations-001-ref.html">
 <link rel="author" title="Sam Davis Omekara Jr." href="mailto:samomekarajr@microsoft.com">
 <style>
   .grid-container {
diff --git a/tests/wpt/tests/css/css-images/gradient/gradient-infinity-001-ref.html b/tests/wpt/tests/css/css-images/gradient/gradient-infinity-001-ref.html
new file mode 100644
index 00000000000..b15e7fcae69
--- /dev/null
+++ b/tests/wpt/tests/css/css-images/gradient/gradient-infinity-001-ref.html
@@ -0,0 +1,25 @@
+<!DOCTYPE html>
+<link rel="author" title="CGQAQ" href="mailto:m.jason.liu@gmail.com">
+<link rel="author" title="一丝" href="mailto:yiorsi@gmail.com">
+<title>All the boxes below should have the lime background.</title>
+<style>
+.box {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 10px;
+}
+.box > div {
+  width: 100px;
+  height: 100px;
+  border: solid 1px black;
+  background-color: lime;
+}
+
+</style>
+<div class="box">
+  <div></div>
+  <div></div>
+  <div></div>
+  <div></div>
+  <div></div>
+</div>
\ No newline at end of file
diff --git a/tests/wpt/tests/css/css-images/gradient/gradient-infinity-001.html b/tests/wpt/tests/css/css-images/gradient/gradient-infinity-001.html
new file mode 100644
index 00000000000..73b9ac1bd1b
--- /dev/null
+++ b/tests/wpt/tests/css/css-images/gradient/gradient-infinity-001.html
@@ -0,0 +1,40 @@
+<!DOCTYPE html>
+<link rel="match" href="gradient-infinity-001-ref.html">
+<link rel="author" title="CGQAQ" href="mailto:m.jason.liu@gmail.com">
+<link rel="author" title="一丝" href="mailto:yiorsi@gmail.com">
+<link rel="help" href="https://www.w3.org/TR/css-color-4/#interpolation">
+<title>All the boxes below should have the lime background.</title>
+<style>
+.box {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 10px;
+}
+.box > div {
+  width: 100px;
+  height: 100px;
+  border: solid 1px black;
+}
+.test1 {
+  background: linear-gradient(to right in srgb, lime 100px, red calc(1px / 0));
+}
+.test2 {
+  background: linear-gradient(to right in srgb, lime 100px, red calc(Infinity * 1px));
+}
+.test3 {
+  background: linear-gradient(to left in srgb, lime 100px, red calc(Infinity * 1px));
+}
+.test4 {
+  background: linear-gradient(to top in srgb, lime 100px, red calc(1px / 0));
+}
+.test5 {
+  background: linear-gradient(to bottom in srgb, lime 100px, red calc(Infinity * 1px));
+}
+</style>
+<div class="box">
+  <div class="test1"></div>
+  <div class="test2"></div>
+  <div class="test3"></div>
+  <div class="test4"></div>
+  <div class="test5"></div>
+</div>
\ No newline at end of file
diff --git a/tests/wpt/tests/css/css-images/gradient/gradient-infinity-002-ref.html b/tests/wpt/tests/css/css-images/gradient/gradient-infinity-002-ref.html
new file mode 100644
index 00000000000..30857abd9a1
--- /dev/null
+++ b/tests/wpt/tests/css/css-images/gradient/gradient-infinity-002-ref.html
@@ -0,0 +1,25 @@
+<!DOCTYPE html>
+<link rel="author" title="CGQAQ" href="mailto:m.jason.liu@gmail.com">
+<link rel="author" title="一丝" href="mailto:yiorsi@gmail.com">
+<title>All boxes should have a lime background.</title>
+<style>
+.box {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 10px;
+}
+.box > div {
+  width: 100px;
+  height: 100px;
+  border: solid 1px black;
+  padding: 1px;
+  background-color: lime;
+}
+</style>
+<div class="box">
+  <div></div>
+  <div></div>
+  <div></div>
+  <div></div>
+  <div></div>
+</div>
\ No newline at end of file
diff --git a/tests/wpt/tests/css/css-images/gradient/gradient-infinity-002.html b/tests/wpt/tests/css/css-images/gradient/gradient-infinity-002.html
new file mode 100644
index 00000000000..0f482492590
--- /dev/null
+++ b/tests/wpt/tests/css/css-images/gradient/gradient-infinity-002.html
@@ -0,0 +1,41 @@
+<!DOCTYPE html>
+<link rel="match" href="gradient-infinity-002-ref.html">
+<link rel="author" title="CGQAQ" href="mailto:m.jason.liu@gmail.com">
+<link rel="author" title="一丝" href="mailto:yiorsi@gmail.com">
+<link rel="help" href="https://www.w3.org/TR/css-color-4/#interpolation">
+<title>All boxes should have a lime background.</title>
+<style>
+.box {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 10px;
+}
+.box > div {
+  width: 100px;
+  height: 100px;
+  border: solid 1px black;
+  padding: 1px;
+}
+.test1 {
+  background: linear-gradient(to right in srgb, lime 100px, red calc(1px / 0));
+}
+.test2 {
+  background: linear-gradient(to right in srgb, lime 100px, red calc(Infinity * 1px));
+}
+.test3 {
+  background: linear-gradient(to left in srgb, lime 100px, red calc(Infinity * 1px));
+}
+.test4 {
+  background: linear-gradient(to top in srgb, lime 100px, red calc(1px / 0));
+}
+.test5 {
+  background: linear-gradient(to bottom in srgb, lime 100px, red calc(Infinity * 1px));
+}
+</style>
+<div class="box">
+  <div class="test1"></div>
+  <div class="test2"></div>
+  <div class="test3"></div>
+  <div class="test4"></div>
+  <div class="test5"></div>
+</div>
\ No newline at end of file
diff --git a/tests/wpt/tests/css/css-overflow/scrollbar-gutter-with-background-gradient-ref.html b/tests/wpt/tests/css/css-overflow/scrollbar-gutter-with-background-gradient-ref.html
new file mode 100644
index 00000000000..1af00bae87d
--- /dev/null
+++ b/tests/wpt/tests/css/css-overflow/scrollbar-gutter-with-background-gradient-ref.html
@@ -0,0 +1,13 @@
+<!doctype html>
+<meta charset="utf-8">
+<title>CSS Overflow: test scrollbar-gutter with background gradient</title>
+<link rel="author" title="CGQAQ" href="mailto:m.jason.liu@gmail.com">
+<link rel="help" href="https://drafts.csswg.org/css-overflow-4/#scrollbar-gutter-property">
+<style>
+  html {
+    scrollbar-gutter: stable both-edges;
+    background-image: linear-gradient(to right, green, blue);
+    position: fixed;
+    inset: 0;
+  }
+</style>
diff --git a/tests/wpt/tests/css/css-overflow/scrollbar-gutter-with-background-gradient.html b/tests/wpt/tests/css/css-overflow/scrollbar-gutter-with-background-gradient.html
new file mode 100644
index 00000000000..0b392446c20
--- /dev/null
+++ b/tests/wpt/tests/css/css-overflow/scrollbar-gutter-with-background-gradient.html
@@ -0,0 +1,13 @@
+<!doctype html>
+<meta charset="utf-8">
+<title>CSS Overflow: test scrollbar-gutter with background gradient</title>
+<link rel="author" title="CGQAQ" href="mailto:m.jason.liu@gmail.com">
+<link rel="help" href="https://drafts.csswg.org/css-overflow-4/#scrollbar-gutter-property">
+<link rel="match" href="scrollbar-gutter-with-background-gradient-ref.html">
+<meta name=fuzzy content="maxDifference=0-1;totalPixels=0-70000">
+<style>
+  html {
+    scrollbar-gutter: stable both-edges;
+    background-image: linear-gradient(to right, green, blue);
+  }
+</style>
diff --git a/tests/wpt/tests/css/css-ruby/ruby-inlinize-fieldset-crash.html b/tests/wpt/tests/css/css-ruby/ruby-inlinize-fieldset-crash.html
new file mode 100644
index 00000000000..5454362077c
--- /dev/null
+++ b/tests/wpt/tests/css/css-ruby/ruby-inlinize-fieldset-crash.html
@@ -0,0 +1,8 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>crbug.com/402200344</title>
+<ruby><i>
+<object classid="5Ygt" name="NEefr" type="text/javascript"><fieldset style="display:contents;"><header></header>
+</object>
+</i>
+<rt>ô6Ì9ºÍ¶æ</ruby>
diff --git a/tests/wpt/tests/css/css-typed-om/WEB_FEATURES.yml b/tests/wpt/tests/css/css-typed-om/WEB_FEATURES.yml
new file mode 100644
index 00000000000..13ff52f5092
--- /dev/null
+++ b/tests/wpt/tests/css/css-typed-om/WEB_FEATURES.yml
@@ -0,0 +1,6 @@
+features:
+- name: css-typed-om
+  files: "**"
+- name: numeric-factory-functions
+  files:
+  - factory-*
diff --git a/tests/wpt/tests/css/css-ui/cursor-calc-hotspot.html b/tests/wpt/tests/css/css-ui/cursor-calc-hotspot.html
index 84f9ca35b79..825d9571271 100644
--- a/tests/wpt/tests/css/css-ui/cursor-calc-hotspot.html
+++ b/tests/wpt/tests/css/css-ui/cursor-calc-hotspot.html
@@ -6,22 +6,38 @@
 <style>
   #t1 {
     font-size: 20px;
-    cursor: url(cur.ico) calc(7 * sign(1em - 18px)) 0, auto;
+    cursor: url(data:image/x-icon,) calc(7 * sign(1em - 18px)) 0, auto;
   }
   #t2 {
-    cursor: url(cur.ico) calc(4 * sibling-index()) 0, auto;
+    cursor: url(data:image/x-icon,) calc(4 * sibling-index()) 0, auto;
+  }
+  #t3 {
+    cursor: url(data:image/x-icon,) calc(9) 0, auto;
+  }
+  #t4 {
+    cursor: url(data:image/x-icon,) calc(10 * sign(2px)) 0, auto;
   }
 </style>
 <div>
   <div id="t1"></div>
   <div id="t2"></div>
+  <div id="t3"></div>
+  <div id="t4"></div>
 </div>
 <script>
   test(() => {
-    assert_equals(getComputedStyle(t1).cursor, "url(cur.ico) 7 0, auto");
+    assert_equals(getComputedStyle(t1).cursor, 'url("data:image/x-icon,") 7 0, auto');
   }, "cursor hotspot with sign() depending on font relative units");
 
   test(() => {
-    assert_equals(getComputedStyle(t2).cursor, "url(cur.ico) 8 0, auto");
+    assert_equals(getComputedStyle(t2).cursor, 'url("data:image/x-icon,") 8 0, auto');
   }, "cursor hotspot depending on sibling-index()");
+
+  test(() => {
+    assert_equals(getComputedStyle(t3).cursor, 'url("data:image/x-icon,") 9 0, auto');
+  }, "cursor hotspot depending on simplified numeric calc()");
+
+  test(() => {
+    assert_equals(getComputedStyle(t4).cursor, 'url("data:image/x-icon,") 10 0, auto');
+  }, "cursor hotspot depending on simplified numeric calc() with sign()");
 </script>
diff --git a/tests/wpt/tests/css/css-view-transitions/WEB_FEATURES.yml b/tests/wpt/tests/css/css-view-transitions/WEB_FEATURES.yml
index e1df1b8c670..cbdc654b1d6 100644
--- a/tests/wpt/tests/css/css-view-transitions/WEB_FEATURES.yml
+++ b/tests/wpt/tests/css/css-view-transitions/WEB_FEATURES.yml
@@ -1,3 +1,7 @@
 features:
 - name: view-transitions
   files: "**"
+- name: view-transition-class
+  files:
+  - class-specificity.html
+  - pseudo-with-classes-*
diff --git a/tests/wpt/tests/css/css-view-transitions/active-view-transition-on-non-root.html b/tests/wpt/tests/css/css-view-transitions/active-view-transition-on-non-root.html
index 9870b15cca9..d8699d3a2c7 100644
--- a/tests/wpt/tests/css/css-view-transitions/active-view-transition-on-non-root.html
+++ b/tests/wpt/tests/css/css-view-transitions/active-view-transition-on-non-root.html
@@ -21,7 +21,10 @@ main:active-view-transition #target {
   background: red;
 }
 
-::view-transition-group(*) {
+::view-transition-group(*),
+::view-transition-image-pair(*),
+::view-transition-old(*),
+::view-transition-new(*) {
   animation-play-state: paused;
 }
 </style>
diff --git a/tests/wpt/tests/css/css-view-transitions/active-view-transition-type-on-non-root.html b/tests/wpt/tests/css/css-view-transitions/active-view-transition-type-on-non-root.html
index f4225485b86..4569af04fff 100644
--- a/tests/wpt/tests/css/css-view-transitions/active-view-transition-type-on-non-root.html
+++ b/tests/wpt/tests/css/css-view-transitions/active-view-transition-type-on-non-root.html
@@ -21,7 +21,10 @@ main:active-view-transition-type(type-name) #target {
   background: red;
 }
 
-::view-transition-group(*) {
+::view-transition-group(*),
+::view-transition-image-pair(*),
+::view-transition-old(*),
+::view-transition-new(*) {
   animation-play-state: paused;
 }
 </style>
diff --git a/tests/wpt/tests/css/css-view-transitions/navigation/WEB_FEATURES.yml b/tests/wpt/tests/css/css-view-transitions/navigation/WEB_FEATURES.yml
new file mode 100644
index 00000000000..1b95bc2b45b
--- /dev/null
+++ b/tests/wpt/tests/css/css-view-transitions/navigation/WEB_FEATURES.yml
@@ -0,0 +1,3 @@
+features:
+- name: cross-document-view-transitions
+  files: "**"
diff --git a/tests/wpt/tests/css/css-view-transitions/nested/nested-root-capture-with-clip-ref.html b/tests/wpt/tests/css/css-view-transitions/nested/nested-root-capture-with-clip-ref.html
index 0e2c7d02543..40275ab555c 100644
--- a/tests/wpt/tests/css/css-view-transitions/nested/nested-root-capture-with-clip-ref.html
+++ b/tests/wpt/tests/css/css-view-transitions/nested/nested-root-capture-with-clip-ref.html
@@ -5,6 +5,7 @@
 <link rel="author" href="mailto:vmpstr@chromium.org">
 
 <style>
+body { background: lightgreen; }
 #clipper {
   overflow: clip;
   height: 200px;
diff --git a/tests/wpt/tests/css/css-view-transitions/nested/nested-root-capture-with-clip.html b/tests/wpt/tests/css/css-view-transitions/nested/nested-root-capture-with-clip.html
index eb728182865..a55997a3f63 100644
--- a/tests/wpt/tests/css/css-view-transitions/nested/nested-root-capture-with-clip.html
+++ b/tests/wpt/tests/css/css-view-transitions/nested/nested-root-capture-with-clip.html
@@ -4,7 +4,7 @@
 <link rel="help" href="https://drafts.csswg.org/css-view-transitions-2/">
 <link rel="author" href="mailto:vmpstr@chromium.org">
 <link rel="match" href="nested-root-capture-with-clip-ref.html">
-<meta name=fuzzy content="maxDifference=0-40; totalPixels=0-400">
+<meta name=fuzzy content="maxDifference=0-40; totalPixels=0-500">
 <script src="/common/reftest-wait.js"></script>
 <script src="/dom/events/scrolling/scroll_support.js"></script>
 
@@ -32,7 +32,7 @@
   will-change: transform;
 }
 ::view-transition-group(clipper) {
-  animation-play-state: pause;
+  animation-play-state: paused;
 }
 ::view-transition-new(clipper) {
   animation: unset;
@@ -45,6 +45,9 @@
 ::view-transition-group(*.item) {
   display: none;
 }
+::view-transition {
+  background: lightgreen;
+}
 </style>
 
 <div id=clipper>
diff --git a/tests/wpt/tests/css/css-view-transitions/parsing/WEB_FEATURES.yml b/tests/wpt/tests/css/css-view-transitions/parsing/WEB_FEATURES.yml
new file mode 100644
index 00000000000..e011b34e2a0
--- /dev/null
+++ b/tests/wpt/tests/css/css-view-transitions/parsing/WEB_FEATURES.yml
@@ -0,0 +1,4 @@
+features:
+- name: view-transition-class
+  files:
+  - view-transition-class-*
diff --git a/tests/wpt/tests/css/css-view-transitions/pseudo-rendering-invalidation.html b/tests/wpt/tests/css/css-view-transitions/pseudo-rendering-invalidation.html
index 4d492c40d87..9624137e754 100644
--- a/tests/wpt/tests/css/css-view-transitions/pseudo-rendering-invalidation.html
+++ b/tests/wpt/tests/css/css-view-transitions/pseudo-rendering-invalidation.html
@@ -28,8 +28,11 @@ div {
   background: darkseagreen;
 }
 
-::view-transition-group(*) {
-  animation-duration: 50s;
+::view-transition-group(*),
+::view-transition-image-pair(*),
+::view-transition-old(*),
+::view-transition-new(*) {
+  animation-play-state: paused;
 }
 
 ::view-transition {
diff --git a/tests/wpt/tests/css/css-view-transitions/view-transition-types-matches-case-sensitive-ref.html b/tests/wpt/tests/css/css-view-transitions/view-transition-types-matches-case-sensitive-ref.html
new file mode 100644
index 00000000000..6a9af3f8286
--- /dev/null
+++ b/tests/wpt/tests/css/css-view-transitions/view-transition-types-matches-case-sensitive-ref.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+
+<style>
+.test {
+  width: 100px;
+  height: 100px;
+  background: green;
+}
+
+#container {
+  display: flex;
+  flex-direction: row;
+  gap: 10px;
+}
+
+body { background: lightpink; }
+</style>
+
+<div id="container">
+  <div class="test"></div>
+  <div class="test"></div>
+</div>
diff --git a/tests/wpt/tests/css/css-view-transitions/view-transition-types-matches-case-sensitive.html b/tests/wpt/tests/css/css-view-transitions/view-transition-types-matches-case-sensitive.html
new file mode 100644
index 00000000000..411c73c607a
--- /dev/null
+++ b/tests/wpt/tests/css/css-view-transitions/view-transition-types-matches-case-sensitive.html
@@ -0,0 +1,76 @@
+<!DOCTYPE html>
+
+<html class="reftest-wait">
+
+<title>View transitions: active-view-transition-type should treat types as case-sensitive</title>
+
+<link rel="help" href="https://drafts.csswg.org/css-view-transitions-2/#the-active-view-transition-type-pseudo">
+<link rel="author" href="mailto:kiet.ho@apple.com">
+<link rel="match" href="view-transition-types-matches-case-sensitive-ref.html">
+
+<script src="/common/reftest-wait.js"></script>
+
+<style>
+html:active-view-transition-type(foo) #positive1 { background: green; }
+html:active-view-transition-type(Foo) #positive1 { background: red; }
+html:active-view-transition-type(FoO) #positive1 { background: magenta; }
+html:active-view-transition-type(FOo) #positive1 { background: black; }
+
+html:active-view-transition-type(Bar) #positive2 { background: green; }
+html:active-view-transition-type(bar) #positive2 { background: red; }
+html:active-view-transition-type(bAr) #positive2 { background: magenta; }
+html:active-view-transition-type(baR) #positive2 { background: black; }
+
+#positive1 { view-transition-name: positive1; background: yellow; }
+#positive2 { view-transition-name: positive2; background: yellow; }
+
+.test {
+  width: 100px;
+  height: 100px;
+}
+
+#container {
+  display: flex;
+  flex-direction: row;
+  gap: 10px;
+}
+
+html::view-transition-group(*) {
+  animation-play-state: paused;
+}
+
+html::view-transition-new(*) {
+  animation: unset;
+  opacity: 0;
+}
+
+html::view-transition-old(*) {
+  animation: unset;
+  opacity: 1;
+}
+
+html::view-transition-group(root) {
+  display: none;
+}
+
+html::view-transition { background: lightpink; }
+</style>
+
+<div id="container">
+  <div class="test" id="positive1"></div>
+  <div class="test" id="positive2"></div>
+</div>
+
+<script>
+failIfNot(document.startViewTransition, "Missing document.startViewTransition");
+
+function runTest() {
+  let transition = document.startViewTransition({
+    types: ["foo", "Bar"]
+  });
+  transition.ready.then(takeScreenshot);
+}
+onload = () => requestAnimationFrame(() => requestAnimationFrame(runTest));
+</script>
+
+</html>
diff --git a/tests/wpt/tests/encrypted-media/scripts/playback-temporary-events.js b/tests/wpt/tests/encrypted-media/scripts/playback-temporary-events.js
index d8dac4463df..1d81cf26071 100644
--- a/tests/wpt/tests/encrypted-media/scripts/playback-temporary-events.js
+++ b/tests/wpt/tests/encrypted-media/scripts/playback-temporary-events.js
@@ -111,7 +111,7 @@ function runTest(config,qualifier) {
                 closeMethodPromise.then(onClosed);
 
                 Promise.all([ closedAttributePromise, closeMethodPromise ]).then(function() {
-                    test.step_func(onAllClosed);
+                    test.step_func(onAllClosed)();
                 }).catch(onFailure);
             }
         }
diff --git a/tests/wpt/tests/fledge/tentative/resources/additional-bids.py b/tests/wpt/tests/fledge/tentative/resources/additional-bids.py
index 8a947533307..89a47c0e0d0 100644
--- a/tests/wpt/tests/fledge/tentative/resources/additional-bids.py
+++ b/tests/wpt/tests/fledge/tentative/resources/additional-bids.py
@@ -23,7 +23,7 @@ class BadRequestError(Exception):
 
 def main(request, response):
   try:
-    if fledge_http_server_util.handle_cors_headers_and_preflight(request, response):
+    if fledge_http_server_util.handle_cors_headers_fail_if_preflight(request, response):
       return
 
     # Verify that Sec-Ad-Auction-Fetch is present
diff --git a/tests/wpt/tests/fledge/tentative/resources/bidding-logic.sub.py b/tests/wpt/tests/fledge/tentative/resources/bidding-logic.sub.py
index 8c0539d43c8..97d2d80343c 100644
--- a/tests/wpt/tests/fledge/tentative/resources/bidding-logic.sub.py
+++ b/tests/wpt/tests/fledge/tentative/resources/bidding-logic.sub.py
@@ -8,7 +8,7 @@ from fledge.tentative.resources import fledge_http_server_util
 # injected in them. generateBid() will by default return a bid of 9 for the
 # first ad.
 def main(request, response):
-  if fledge_http_server_util.handle_cors_headers_and_preflight(request, response):
+  if fledge_http_server_util.handle_cors_headers_fail_if_preflight(request, response):
     return
 
   error = request.GET.first(b"error", None)
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 179262d3392..30889d92d4f 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
@@ -2,6 +2,17 @@
 from collections import namedtuple
 from urllib.parse import unquote_plus, urlparse
 
+def fail(response, body):
+    """Sets up response to fail with the provided response body.
+
+    Args:
+      response: the wptserve Response that was passed to main
+      body: the HTTP response body to use
+    """
+    response.status = (400, "Bad Request")
+    response.headers.set(b"Content-Type", b"text/plain")
+    response.content = body
+
 def headers_to_ascii(headers):
   """Converts a header map with binary values to one with ASCII values.
 
@@ -22,18 +33,15 @@ def headers_to_ascii(headers):
       header_map[pair[0].decode("ASCII")] = values
   return header_map
 
-
-def handle_cors_headers_and_preflight(request, response):
-  """Applies CORS logic common to many entrypoints.
+def attach_origin_and_credentials_headers(request, response):
+  """Attaches Access-Control-Allow-Origin and Access-Control-Allow-Credentials
+  response headers to a response, if the request indicates they're needed.
+  Only intended for internal use.
 
   Args:
     request: the wptserve Request that was passed to main
     response: the wptserve Response that was passed to main
-
-  Returns True if the request is a CORS preflight, which is entirely handled by
-  this function, so that the calling function should immediately return.
   """
-  # Append CORS headers if needed
   if b"origin" in request.headers:
     response.headers.set(b"Access-Control-Allow-Origin",
                         request.headers.get(b"origin"))
@@ -42,20 +50,50 @@ def handle_cors_headers_and_preflight(request, response):
     response.headers.set(b"Access-Control-Allow-Credentials",
                         request.headers.get(b"credentials"))
 
+def handle_cors_headers_fail_if_preflight(request, response):
+  """Adds CORS headers if necessary. In the case of CORS preflights, generates
+  a failure response. To be used when CORS preflights are not expected.
+
+  Args:
+    request: the wptserve Request that was passed to main
+    response: the wptserve Response that was passed to main
+
+  Returns True if the request is a CORS preflight, in which case the calling
+  function should immediately return.
+  """
+  # Handle CORS preflight requests.
+  if request.method == u"OPTIONS":
+    fail(response, "CORS preflight unexpectedly received.")
+    return True
+
+  # Append CORS headers if needed
+  attach_origin_and_credentials_headers(request, response)
+  return False
+
+def handle_cors_headers_and_preflight(request, response):
+  """Applies CORS logic, either adding CORS headers to response or generating
+  an entire response to preflights.
+
+  Args:
+    request: the wptserve Request that was passed to main
+    response: the wptserve Response that was passed to main
+
+  Returns True if the request is a CORS preflight, in which case the calling
+  function should immediately return.
+  """
+  # Append CORS headers if needed
+  attach_origin_and_credentials_headers(request, response)
+
   # Handle CORS preflight requests.
   if not request.method == u"OPTIONS":
     return False
 
   if not b"Access-Control-Request-Method" in request.headers:
-    response.status = (400, b"Bad Request")
-    response.headers.set(b"Content-Type", b"text/plain")
-    response.content = "Failed to get access-control-request-method in preflight!"
+    fail(response, "Failed to get access-control-request-method in preflight!")
     return True
 
   if not b"Access-Control-Request-Headers" in request.headers:
-    response.status = (400, b"Bad Request")
-    response.headers.set(b"Content-Type", b"text/plain")
-    response.content = "Failed to get access-control-request-headers in preflight!"
+    fail(response, "Failed to get access-control-request-headers in preflight!")
     return True
 
   response.headers.set(b"Access-Control-Allow-Methods",
diff --git a/tests/wpt/tests/fledge/tentative/resources/permissions.py b/tests/wpt/tests/fledge/tentative/resources/permissions.py
index eed93c42756..f66e28bb27b 100644
--- a/tests/wpt/tests/fledge/tentative/resources/permissions.py
+++ b/tests/wpt/tests/fledge/tentative/resources/permissions.py
@@ -35,7 +35,7 @@ def get_permissions(request, response):
   - 天気の良い日 / élève: allow both join and leave
   - anything else (including no subdomain): returns a 404
   """
-  if fledge_http_server_util.handle_cors_headers_and_preflight(request, response):
+  if fledge_http_server_util.handle_cors_headers_fail_if_preflight(request, response):
     return
 
   first_domain_label = re.search(r"[^.]*", request.url_parts.netloc).group(0)
diff --git a/tests/wpt/tests/fledge/tentative/resources/trusted-bidding-signals.py b/tests/wpt/tests/fledge/tentative/resources/trusted-bidding-signals.py
index 5a89e3b6025..e6e7d660525 100644
--- a/tests/wpt/tests/fledge/tentative/resources/trusted-bidding-signals.py
+++ b/tests/wpt/tests/fledge/tentative/resources/trusted-bidding-signals.py
@@ -20,10 +20,12 @@ def main(request, response):
     for param in request.url_parts.query.split("&"):
         pair = param.split("=", 1)
         if len(pair) != 2:
-            return fail(response, "Bad query parameter: " + param)
+            fail(response, "Bad query parameter: " + param)
+            return
         # Browsers should escape query params consistently.
         if "%20" in pair[1]:
-            return fail(response, "Query parameter should escape using '+': " + param)
+            fail(response, "Query parameter should escape using '+': " + param)
+            return
 
         # Hostname can't be empty. The empty string can be a key or interest group name, though.
         if pair[0] == "hostname" and hostname == None and len(pair[1]) > 0:
@@ -37,20 +39,22 @@ def main(request, response):
             continue
         if pair[0] == "slotSize" or pair[0] == "allSlotsRequestedSizes":
             continue
-        return fail(response, "Unexpected query parameter: " + param)
+        fail(response, "Unexpected query parameter: " + param)
+        return
 
     # If trusted signal keys are passed in, and one of them is "cors",
-    # add appropriate Access-Control-* headers to normal requests, and handle
-    # CORS preflights.
-    if keys and "cors" in keys and fledge_http_server_util.handle_cors_headers_and_preflight(
+    # add appropriate Access-Control-* headers to normal requests.
+    if keys and "cors" in keys and fledge_http_server_util.handle_cors_headers_fail_if_preflight(
             request, response):
         return
 
     # "interestGroupNames" and "hostname" are mandatory.
     if not hostname:
-        return fail(response, "hostname missing")
+        fail(response, "hostname missing")
+        return
     if not interestGroupNames:
-        return fail(response, "interestGroupNames missing")
+        fail(response, "interestGroupNames missing")
+        return
 
     response.status = (200, b"OK")
 
@@ -153,8 +157,3 @@ def main(request, response):
     if body != None:
         return body
     return json.dumps(responseBody)
-
-def fail(response, body):
-    response.status = (400, "Bad Request")
-    response.headers.set(b"Content-Type", b"text/plain")
-    return body
diff --git a/tests/wpt/tests/fledge/tentative/resources/trusted-scoring-signals.py b/tests/wpt/tests/fledge/tentative/resources/trusted-scoring-signals.py
index 934d2e9129d..bfd23b124cb 100644
--- a/tests/wpt/tests/fledge/tentative/resources/trusted-scoring-signals.py
+++ b/tests/wpt/tests/fledge/tentative/resources/trusted-scoring-signals.py
@@ -13,7 +13,8 @@ def main(request, response):
     try:
         params = fledge_http_server_util.decode_trusted_scoring_signals_params(request)
     except ValueError as ve:
-        return fail(response, str(ve))
+        fail(response, str(ve))
+        return
 
     response.status = (200, b"OK")
 
@@ -36,7 +37,8 @@ def main(request, response):
             try:
                 signalsParams = fledge_http_server_util.decode_render_url_signals_params(renderUrl)
             except ValueError as ve:
-                return fail(response, str(ve))
+                fail(response, str(ve))
+                return
 
             for signalsParam in signalsParams:
                 if signalsParam == "close-connection":
@@ -92,8 +94,8 @@ def main(request, response):
                 responseBody[urlList["type"]][renderUrl] = value
 
     # If the signalsParam embedded inside a render URL calls for CORS, add
-    # appropriate response headers, and fully handle preflights.
-    if cors and fledge_http_server_util.handle_cors_headers_and_preflight(
+    # appropriate response headers.
+    if cors and fledge_http_server_util.handle_cors_headers_fail_if_preflight(
             request, response):
         return
 
@@ -107,8 +109,3 @@ def main(request, response):
     if body != None:
         return body
     return json.dumps(responseBody)
-
-def fail(response, body):
-    response.status = (400, "Bad Request")
-    response.headers.set(b"Content-Type", b"text/plain")
-    return body
diff --git a/tests/wpt/tests/html/browsers/history/the-history-interface/history_pushstate_too_many_calls.optional.html b/tests/wpt/tests/html/browsers/history/the-history-interface/history_pushstate_too_many_calls.optional.html
new file mode 100644
index 00000000000..4242ab488ca
--- /dev/null
+++ b/tests/wpt/tests/html/browsers/history/the-history-interface/history_pushstate_too_many_calls.optional.html
@@ -0,0 +1,20 @@
+<!DOCTYPE HTML>
+<html>
+  <head>
+    <title>history pushState too many calls</title>
+    <script src="/resources/testharness.js"></script>
+    <script src="/resources/testharnessreport.js"></script>
+  </head>
+  <body>
+    <div id="log"></div>
+    <script>
+    test(function () {
+      assert_throws_dom("SecurityError", function () {
+        for (let i = 0; i < 500; i++) {
+          window.history.pushState(null, null, i);
+        }
+      });
+    });
+    </script>
+  </body>
+</html>
diff --git a/tests/wpt/tests/html/browsers/history/the-history-interface/history_replacestate_too_many_calls.optional.html b/tests/wpt/tests/html/browsers/history/the-history-interface/history_replacestate_too_many_calls.optional.html
new file mode 100644
index 00000000000..d412983270c
--- /dev/null
+++ b/tests/wpt/tests/html/browsers/history/the-history-interface/history_replacestate_too_many_calls.optional.html
@@ -0,0 +1,20 @@
+<!DOCTYPE HTML>
+<html>
+  <head>
+    <title>history replaceState too many calls</title>
+    <script src="/resources/testharness.js"></script>
+    <script src="/resources/testharnessreport.js"></script>
+  </head>
+  <body>
+    <div id="log"></div>
+    <script>
+    test(function () {
+      assert_throws_dom("SecurityError", function () {
+        for (let i = 0; i < 500; i++) {
+          window.history.replaceState(null, null, i);
+        }
+      });
+    });
+    </script>
+  </body>
+</html>
diff --git a/tests/wpt/tests/html/document-isolation-policy/credentialless-cache-storage-from-credentialless.https.tentative.window.js b/tests/wpt/tests/html/document-isolation-policy/credentialless-cache-storage-from-credentialless.https.tentative.window.js
new file mode 100644
index 00000000000..cae480526b8
--- /dev/null
+++ b/tests/wpt/tests/html/document-isolation-policy/credentialless-cache-storage-from-credentialless.https.tentative.window.js
@@ -0,0 +1,90 @@
+// META: timeout=long
+// META: variant=?document
+// META: variant=?dedicated_worker
+// META: variant=?shared_worker
+// META: variant=?service_worker
+// META: script=/common/get-host-info.sub.js
+// META: script=/common/utils.js
+// META: script=/common/dispatcher/dispatcher.js
+// META: script=/service-workers/service-worker/resources/test-helpers.sub.js
+// META: script=./resources/common.js
+
+// Fetch a resource and store it into CacheStorage from |storer| context. Then
+// check if it can be retrieved via CacheStorage.match from |retriever| context.
+const cacheStorageTest = (
+  description,
+  dip_storer,
+  dip_retriever,
+  resource_headers,
+  request_credential_mode,
+  expectation
+) => {
+  promise_test(async test => {
+    const cross_origin = get_host_info().HTTPS_REMOTE_ORIGIN;
+    const resource_url = cross_origin + "/common/square.png?pipe=" + resource_headers;
+
+    // Create the storer and retriever contexts.
+    const storage_token = await getTokenFromEnvironment(test, environment, dip_storer);
+    const storage_context = new RemoteContext(storage_token);
+    const retriever_token = await getTokenFromEnvironment(test, environment, dip_retriever);
+    const retriever_context = new RemoteContext(retriever_token);
+
+    // Fetch a request from the storer. Store the opaque response into
+    // CacheStorage.
+    const stored = await storage_context.execute_script(
+      async (url, credential_mode) => {
+        const cache = await caches.open('v1');
+        const fetch_request = new Request(url, {
+          mode: 'no-cors',
+          credentials: credential_mode
+        });
+        const fetch_response = await fetch(fetch_request);
+        await cache.put(fetch_request, fetch_response);
+        return true;
+      }, [resource_url, request_credential_mode]);
+    assert_equals(stored, true);
+
+    // Retrieved it from |retriever|.
+    const was_retrieved = await retriever_context.execute_script(
+      async (url) => {
+        const cache = await caches.open('v1');
+         try {
+           const response = await cache.match(url);
+           return "retrieved";
+         } catch (error) {
+           return "error";
+         }
+      }, [resource_url]);
+    assert_equals(was_retrieved, expectation);
+  }, description);
+};
+
+// Execute the same set of tests for every type of execution contexts:
+// Documents, DedicatedWorkers, SharedWorkers, and ServiceWorkers. The results
+// should be independent of the context.
+const environment = location.search.substr(1);
+
+cacheStorageTest(`[${environment}] isolate-and-credentialless => none`,
+  dip_credentialless,
+  dip_none,
+  "",
+  "include",
+  "retrieved");
+cacheStorageTest(`[${environment}] isolate-and-credentialless => isolate-and-credentialless`,
+  dip_credentialless,
+  dip_credentialless,
+  "",
+  "include",
+  "retrieved");
+cacheStorageTest(`[${environment}] isolate-and-credentialless => isolate-and-require-corp`,
+  dip_credentialless,
+  dip_require_corp,
+  "",
+  "include",
+  "error");
+cacheStorageTest(`[${environment}] isolate-and-credentialless => isolate-and-require-corp + CORP`,
+  dip_credentialless,
+  dip_require_corp,
+  corp_cross_origin,
+  "include",
+  "retrieved");
diff --git a/tests/wpt/tests/html/document-isolation-policy/credentialless-cache-storage-from-none.https.tentative.window.js b/tests/wpt/tests/html/document-isolation-policy/credentialless-cache-storage-from-none.https.tentative.window.js
new file mode 100644
index 00000000000..e2478abeed2
--- /dev/null
+++ b/tests/wpt/tests/html/document-isolation-policy/credentialless-cache-storage-from-none.https.tentative.window.js
@@ -0,0 +1,108 @@
+// META: timeout=long
+// META: variant=?document
+// META: variant=?dedicated_worker
+// META: variant=?shared_worker
+// META: variant=?service_worker
+// META: script=/common/get-host-info.sub.js
+// META: script=/common/utils.js
+// META: script=/common/dispatcher/dispatcher.js
+// META: script=/service-workers/service-worker/resources/test-helpers.sub.js
+// META: script=./resources/common.js
+
+// Fetch a resource and store it into CacheStorage from |storer| context. Then
+// check if it can be retrieved via CacheStorage.match from |retriever| context.
+const cacheStorageTest = (
+  description,
+  dip_storer,
+  dip_retriever,
+  resource_headers,
+  request_credential_mode,
+  expectation
+) => {
+  promise_test(async test => {
+    const cross_origin = get_host_info().HTTPS_REMOTE_ORIGIN;
+    const resource_url = cross_origin + "/common/square.png?pipe=" + resource_headers;
+
+    // Create the storer and retriever contexts.
+    const storage_token = await getTokenFromEnvironment(test, environment, dip_storer);
+    const storage_context = new RemoteContext(storage_token);
+    const retriever_token = await getTokenFromEnvironment(test, environment, dip_retriever);
+    const retriever_context = new RemoteContext(retriever_token);
+
+    // Fetch a request from the storer. Store the opaque response into
+    // CacheStorage.
+    const stored = await storage_context.execute_script(
+      async (url, credential_mode) => {
+        const cache = await caches.open('v1');
+        const fetch_request = new Request(url, {
+          mode: 'no-cors',
+          credentials: credential_mode
+        });
+        const fetch_response = await fetch(fetch_request);
+        await cache.put(fetch_request, fetch_response);
+        return true;
+      }, [resource_url, request_credential_mode]);
+    assert_equals(stored, true);
+
+    // Retrieved it from |retriever|.
+    const was_retrieved = await retriever_context.execute_script(
+      async (url) => {
+        const cache = await caches.open('v1');
+         try {
+           const response = await cache.match(url);
+           return "retrieved";
+         } catch (error) {
+           return "error";
+         }
+      }, [resource_url]);
+    assert_equals(was_retrieved, expectation);
+  }, description);
+};
+
+// Execute the same set of tests for every type of execution contexts:
+// Documents, DedicatedWorkers, SharedWorkers, and ServiceWorkers. The results
+// should be independent of the context.
+const environment = location.search.substr(1);
+
+cacheStorageTest(`[${environment}] none => none`,
+  dip_none,
+  dip_none,
+  "",
+  "include",
+  "retrieved");
+cacheStorageTest(`[${environment}] none => isolate-and-credentialless`,
+  dip_none,
+  dip_credentialless,
+  "",
+  "include",
+  "error");
+cacheStorageTest(`[${environment}] none => isolate-and-credentialless (omit)`,
+  dip_none,
+  dip_credentialless,
+  "",
+  "omit",
+  "retrieved");
+cacheStorageTest(`[${environment}] none => isolate-and-credentialless + CORP`,
+  dip_none,
+  dip_credentialless,
+  corp_cross_origin,
+  "include",
+  "retrieved");
+cacheStorageTest(`[${environment}] none => isolate-and-require-corp`,
+  dip_none,
+  dip_require_corp,
+  "",
+  "include",
+  "error");
+cacheStorageTest(`[${environment}] none => isolate-and-require-corp (omit)`,
+  dip_none,
+  dip_require_corp,
+  "",
+  "include",
+  "error");
+cacheStorageTest(`[${environment}] none => isolate-and-require-corp + CORP`,
+  dip_none,
+  dip_require_corp,
+  corp_cross_origin,
+  "include",
+  "retrieved");
diff --git a/tests/wpt/tests/html/document-isolation-policy/credentialless-cache-storage-from-require-corp.https.tentative.window.js b/tests/wpt/tests/html/document-isolation-policy/credentialless-cache-storage-from-require-corp.https.tentative.window.js
new file mode 100644
index 00000000000..720fa6a987a
--- /dev/null
+++ b/tests/wpt/tests/html/document-isolation-policy/credentialless-cache-storage-from-require-corp.https.tentative.window.js
@@ -0,0 +1,84 @@
+// META: timeout=long
+// META: variant=?document
+// META: variant=?dedicated_worker
+// META: variant=?shared_worker
+// META: variant=?service_worker
+// META: script=/common/get-host-info.sub.js
+// META: script=/common/utils.js
+// META: script=/common/dispatcher/dispatcher.js
+// META: script=/service-workers/service-worker/resources/test-helpers.sub.js
+// META: script=./resources/common.js
+
+// Fetch a resource and store it into CacheStorage from |storer| context. Then
+// check if it can be retrieved via CacheStorage.match from |retriever| context.
+const cacheStorageTest = (
+  description,
+  dip_storer,
+  dip_retriever,
+  resource_headers,
+  request_credential_mode,
+  expectation
+) => {
+  promise_test(async test => {
+    const cross_origin = get_host_info().HTTPS_REMOTE_ORIGIN;
+    const resource_url = cross_origin + "/common/square.png?pipe=" + resource_headers;
+
+    // Create the storer and retriever contexts.
+    const storage_token = await getTokenFromEnvironment(test, environment, dip_storer);
+    const storage_context = new RemoteContext(storage_token);
+    const retriever_token = await getTokenFromEnvironment(test, environment, dip_retriever);
+    const retriever_context = new RemoteContext(retriever_token);
+
+    // Fetch a request from the storer. Store the opaque response into
+    // CacheStorage.
+    const stored = await storage_context.execute_script(
+      async (url, credential_mode) => {
+        const cache = await caches.open('v1');
+        const fetch_request = new Request(url, {
+          mode: 'no-cors',
+          credentials: credential_mode
+        });
+        const fetch_response = await fetch(fetch_request);
+        await cache.put(fetch_request, fetch_response);
+        return true;
+      }, [resource_url, request_credential_mode]);
+    assert_equals(stored, true);
+
+    // Retrieved it from |retriever|.
+    const was_retrieved = await retriever_context.execute_script(
+      async (url) => {
+        const cache = await caches.open('v1');
+         try {
+           const response = await cache.match(url);
+           return "retrieved";
+         } catch (error) {
+           return "error";
+         }
+      }, [resource_url]);
+    assert_equals(was_retrieved, expectation);
+  }, description);
+};
+
+// Execute the same set of tests for every type of execution contexts:
+// Documents, DedicatedWorkers, SharedWorkers, and ServiceWorkers. The results
+// should be independent of the context.
+const environment = location.search.substr(1);
+
+cacheStorageTest(`[${environment}] isolate-and-require-corp => none`,
+  dip_require_corp,
+  dip_none,
+  corp_cross_origin,
+  "include",
+  "retrieved");
+cacheStorageTest(`[${environment}] isolate-and-require-corp => isolate-and-credentialless`,
+  dip_require_corp,
+  dip_credentialless,
+  corp_cross_origin,
+  "include",
+  "retrieved");
+cacheStorageTest(`[${environment}] isolate-and-require-corp => isolate-and-require-corp`,
+  dip_require_corp,
+  dip_require_corp,
+  corp_cross_origin,
+  "include",
+  "retrieved");
diff --git a/tests/wpt/tests/html/document-isolation-policy/credentialless-cache-storage.https.tentative.window.js b/tests/wpt/tests/html/document-isolation-policy/credentialless-cache-storage.https.tentative.window.js
deleted file mode 100644
index cb4b174e945..00000000000
--- a/tests/wpt/tests/html/document-isolation-policy/credentialless-cache-storage.https.tentative.window.js
+++ /dev/null
@@ -1,150 +0,0 @@
-// META: timeout=long
-// META: variant=?document
-// META: variant=?dedicated_worker
-// META: variant=?shared_worker
-// META: variant=?service_worker
-// META: script=/common/get-host-info.sub.js
-// META: script=/common/utils.js
-// META: script=/common/dispatcher/dispatcher.js
-// META: script=./resources/common.js
-
-// Fetch a resource and store it into CacheStorage from |storer| context. Then
-// check if it can be retrieved via CacheStorage.match from |retriever| context.
-const cacheStorageTest = (
-  description,
-  storer,
-  retriever,
-  resource_headers,
-  request_credential_mode,
-  expectation
-) => {
-  promise_test_parallel(async test => {
-    const cross_origin = get_host_info().HTTPS_REMOTE_ORIGIN;
-    const url = cross_origin + "/common/square.png?pipe=" + resource_headers +
-      `&${token()}`;
-    const this_token = token();
-
-    // Fetch a request from |stored|. Store the opaque response into
-    // CacheStorage.
-    send(storer, `
-      const cache = await caches.open("v1");
-      const fetch_request = new Request("${url}", {
-        mode: 'no-cors',
-        credentials: '${request_credential_mode}'
-      });
-      const fetch_response = await fetch(fetch_request);
-      await cache.put(fetch_request, fetch_response);
-      send("${this_token}", "stored");
-    `);
-    assert_equals(await receive(this_token), "stored");
-
-    // Retrieved it from |retriever|.
-    send(retriever, `
-      const cache = await caches.open("v1");
-      try {
-        const response = await cache.match("${url}");
-        send("${this_token}", "retrieved");
-      } catch (error) {
-        send("${this_token}", "error");
-      }
-    `);
-    assert_equals(await receive(this_token), expectation);
-  }, description);
-};
-
-// Execute the same set of tests for every type of execution contexts:
-// Documents, DedicatedWorkers, SharedWorkers, and ServiceWorkers. The results
-// should be independent of the context.
-const environment = location.search.substr(1);
-const constructor = environments[environment];
-
-const context_none = constructor(coep_none)[0];
-const context_credentialless = constructor(dip_credentialless)[0];
-const context_require_corp = constructor(dip_require_corp)[0];
-
-cacheStorageTest(`[${environment}] none => none`,
-  context_none,
-  context_none,
-  "",
-  "include",
-  "retrieved");
-cacheStorageTest(`[${environment}] none => isolate-and-credentialless`,
-  context_none,
-  context_credentialless,
-  "",
-  "include",
-  "error");
-cacheStorageTest(`[${environment}] none => isolate-and-credentialless (omit)`,
-  context_none,
-  context_credentialless,
-  "",
-  "omit",
-  "retrieved");
-cacheStorageTest(`[${environment}] none => isolate-and-credentialless + CORP`,
-  context_none,
-  context_credentialless,
-  corp_cross_origin,
-  "include",
-  "retrieved");
-cacheStorageTest(`[${environment}] none => isolate-and-require-corp`,
-  context_none,
-  context_require_corp,
-  "",
-  "include",
-  "error");
-cacheStorageTest(`[${environment}] none => isolate-and-require-corp (omit)`,
-  context_none,
-  context_require_corp,
-  "",
-  "include",
-  "error");
-cacheStorageTest(`[${environment}] none => isolate-and-require-corp + CORP`,
-  context_none,
-  context_require_corp,
-  corp_cross_origin,
-  "include",
-  "retrieved");
-
-cacheStorageTest(`[${environment}] isolate-and-credentialless => none`,
-  context_credentialless,
-  context_none,
-  "",
-  "include",
-  "retrieved");
-cacheStorageTest(`[${environment}] isolate-and-credentialless => isolate-and-credentialless`,
-  context_credentialless,
-  context_credentialless,
-  "",
-  "include",
-  "retrieved");
-cacheStorageTest(`[${environment}] isolate-and-credentialless => isolate-and-require-corp`,
-  context_credentialless,
-  context_require_corp,
-  "",
-  "include",
-  "error");
-cacheStorageTest(`[${environment}] isolate-and-credentialless => isolate-and-require-corp + CORP`,
-  context_credentialless,
-  context_require_corp,
-  corp_cross_origin,
-  "include",
-  "retrieved");
-
-cacheStorageTest(`[${environment}] isolate-and-require-corp => none`,
-  context_require_corp,
-  context_none,
-  corp_cross_origin,
-  "include",
-  "retrieved");
-cacheStorageTest(`[${environment}] isolate-and-require-corp => isolate-and-credentialless`,
-  context_require_corp,
-  context_credentialless,
-  corp_cross_origin,
-  "include",
-  "retrieved");
-cacheStorageTest(`[${environment}] isolate-and-require-corp => isolate-and-require-corp`,
-  context_require_corp,
-  context_require_corp,
-  corp_cross_origin,
-  "include",
-  "retrieved");
diff --git a/tests/wpt/tests/html/document-isolation-policy/credentialless-dedicated-worker.https.tentative.window.js b/tests/wpt/tests/html/document-isolation-policy/credentialless-dedicated-worker.https.tentative.window.js
index 748130dfdc2..539ed0a6955 100644
--- a/tests/wpt/tests/html/document-isolation-policy/credentialless-dedicated-worker.https.tentative.window.js
+++ b/tests/wpt/tests/html/document-isolation-policy/credentialless-dedicated-worker.https.tentative.window.js
@@ -2,6 +2,7 @@
 // META: script=/common/get-host-info.sub.js
 // META: script=/common/utils.js
 // META: script=/common/dispatcher/dispatcher.js
+// META: script=/service-workers/service-worker/resources/test-helpers.sub.js
 // META: script=./resources/common.js
 
 const same_origin = get_host_info().HTTPS_ORIGIN;
@@ -19,112 +20,63 @@ promise_test(async test => {
       cookie_same_site_none),
   ]);
 
-  // One window with DIP:none. (control)
-  const w_control_token = token();
-  const w_control_url = same_origin + executor_path +
-    coep_none + `&uuid=${w_control_token}`
-  const w_control = window.open(w_control_url);
-  add_completion_callback(() => w_control.close());
-
-  // One window with DIP:isolate-and-credentialless. (experiment)
-  const w_credentialless_token = token();
-  const w_credentialless_url = same_origin + executor_path +
-    dip_credentialless + `&uuid=${w_credentialless_token}`;
-  const w_credentialless = window.open(w_credentialless_url);
-  add_completion_callback(() => w_credentialless.close());
-
   let GetCookie = (response) => {
     const headers_credentialless = JSON.parse(response);
     return parseCookies(headers_credentialless)[cookie_key];
   }
 
+  async function fetchInRemoteContext(ctx, request_url) {
+    // The fail might fail in when a DedicatedWorker with DIP
+    // isolate-and-require-corp tries to fetch a cross-origin resource. Silently
+    // catch the error as we're only interested in whether the cookies were sent
+    // with the fetch in the first place.
+    try {
+    await ctx.execute_script(
+        async (url) => {
+          await fetch(url, {mode: 'no-cors', credentials: 'include'});
+        }, [request_url]);
+    } catch(error) {}
+  }
+
   const dedicatedWorkerTest = function(
-    description, origin, coep_for_worker,
-    expected_cookies_control,
-    expected_cookies_credentialless) {
+    description, origin, dip_for_worker,
+    expected_cookies) {
     promise_test_parallel(async t => {
-      // Create workers for both window.
-      const worker_token_1 = token();
-      const worker_token_2 = token();
+      // Create one iframe with the specified DIP isolate-and-credentialless.
+      // Then start a DedicatedWorker. The DedicatedWorker will inherit the DIP
+      // of its creator.
+      const worker = await createDedicatedWorkerContext(test, same_origin, dip_for_worker);
+      const worker_context = new RemoteContext(worker[0]);
 
-      // Used to check for errors creating the DedicatedWorker.
-      const worker_error = token();
+      // Fetch resources with the worker.
+      const request_token = token();
+      const request_url = showRequestHeaders(origin, request_token);
 
-      const w_worker_src_1 = same_origin + executor_worker_path +
-        coep_for_worker + `&uuid=${worker_token_1}`;
-      send(w_control_token, `
-        const worker = new Worker("${w_worker_src_1}", {});
-      `);
-
-      const w_worker_src_2 = same_origin + executor_worker_path +
-        coep_for_worker + `&uuid=${worker_token_2}`;
-      send(w_credentialless_token, `
-        const worker = new Worker("${w_worker_src_2}", {});
-        worker.onerror = () => {
-          send("${worker_error}", "Worker blocked");
-        }
-      `);
-
-      // Fetch resources with the workers.
-      const request_token_1 = token();
-      const request_token_2 = token();
-      const request_url_1 = showRequestHeaders(origin, request_token_1);
-      const request_url_2 = showRequestHeaders(origin, request_token_2);
-
-      send(worker_token_1, `
-        fetch("${request_url_1}", {mode: 'no-cors', credentials: 'include'})
-      `);
-      send(worker_token_2, `
-        fetch("${request_url_2}", {mode: 'no-cors', credentials: 'include'});
-      `);
-
-      const response_control = await receive(request_token_1).then(GetCookie);
-      assert_equals(response_control,
-        expected_cookies_control,
-        "coep:none => ");
-
-      const response_credentialless = await Promise.race([
-        receive(worker_error),
-        receive(request_token_2).then(GetCookie)
-      ]);
-      assert_equals(response_credentialless,
-        expected_cookies_credentialless,
-        "coep:credentialless => ");
+      await fetchInRemoteContext(worker_context, request_url);
+      const response_worker = await receive(request_token).then(GetCookie);
+      assert_equals(response_worker,
+        expected_cookies,
+        "dip => ");
     }, `fetch ${description}`)
   };
 
   dedicatedWorkerTest("same-origin + credentialless worker",
     same_origin, dip_credentialless,
-    cookie_same_origin,
     cookie_same_origin);
 
   dedicatedWorkerTest("same-origin + require_corp worker",
     same_origin, dip_require_corp,
-    cookie_same_origin,
     cookie_same_origin);
 
-  dedicatedWorkerTest("same-origin",
-    same_origin, dip_none,
-    cookie_same_origin,
-    "Worker blocked");
-
-  dedicatedWorkerTest("cross-origin",
-    cross_origin, dip_none,
-    cookie_cross_origin,
-    "Worker blocked" // Owner's policy is credentialless, so we can't
-                     // create a worker with coep_none.
-  );
-
   dedicatedWorkerTest("cross-origin + credentialless worker",
     cross_origin, dip_credentialless,
-    undefined, // Worker created successfully with credentialless, and fetch doesn't get credentials
     undefined // Worker created successfully with credentialless, and fetch doesn't get credentials
   );
 
   dedicatedWorkerTest("cross-origin + require_corp worker",
     cross_origin, dip_require_corp,
-    cookie_cross_origin,
-    cookie_cross_origin // The worker's policy is require_corp and doing a
-                        // fetch within it has nothing to do with the Owner's policy.
+    cookie_cross_origin // The worker's policy is require_corp, so the resource will be requested with cookies
+                        // but the load will fail because the response does not
+                        // have CORP cross-origin.
   );
 })
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
index 934c87b2abc..0b7c12ac514 100644
--- 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
@@ -8,22 +8,12 @@
 <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 src="./resources/common.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") +
+const dip_reporting_header = header("document-isolation-policy", "isolate-and-require-corp") +
   header("document-isolation-policy-report-only", "isolate-and-require-corp");
 
 async function putInCache(resourceUrl) {
@@ -89,56 +79,26 @@ async function runRemoteContextTest(uuid, expected_count, check, context_url, re
 
 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);
+  const context = await createIframeContext(t, `${ORIGIN}`, dip_reporting_header);
+  await runRemoteContextTest(context[0], expected_count, check, context[1], 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);
+  // Create a worker which will inherit DocumentIsolationPolicy reporting from its creator.
+  const context = await createDedicatedWorkerContext(t, `${ORIGIN}`, dip_reporting_header);
+  await runRemoteContextTest(context[0], expected_count, check, context[1], 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);
+  const context = await createSharedWorkerContext(t, `${ORIGIN}`, dip_reporting_header);
+  await runRemoteContextTest(context[0], expected_count, check, context[1], resource_url);
 }
 
 async function runIFrameWithServiceWorkerTest(t, check, resource_url, expected_count) {
-  // Here we use a Service Worker without DIP.
-  const SERVICE_WORKER_URL = `${ORIGIN}/common/dispatcher/executor-service-worker.js`;
-  const reg = await service_worker_unregister_and_register(
-    t, SERVICE_WORKER_URL, FRAME_URL);
-  const worker = reg.installing || reg.waiting || reg.active;
-  worker.addEventListener('error', t.unreached_func('Worker.onerror'));
-
-  // Load an iframe with DocumentIsolationPolicy reporting.
-  const uuid = token();
-  const frame_url = FRAME_URL +
-    '&uuid=' + uuid;
-  const frame = await with_iframe(frame_url);
-
-  t.add_cleanup(() => {
-    reg.unregister();
-    frame.remove();
-  });
-
-  await runRemoteContextTest(uuid, expected_count, check, frame_url, resource_url);
+  // Create an iframe with DocumentIsolationPolicy reporting and a ServiceWorker.
+  const context = await createIframeWithSWContext(t, `${ORIGIN}`, dip_reporting_header);
+  await runRemoteContextTest(context[0], expected_count, check, context[1], resource_url);
 }
 
 // We want to test several URLs in various environments (document,
diff --git a/tests/wpt/tests/html/document-isolation-policy/reporting-subresource-corp.tentative.https.html b/tests/wpt/tests/html/document-isolation-policy/reporting-subresource-corp.tentative.https.html
index 6be3c35ad7a..013eb34d106 100644
--- a/tests/wpt/tests/html/document-isolation-policy/reporting-subresource-corp.tentative.https.html
+++ b/tests/wpt/tests/html/document-isolation-policy/reporting-subresource-corp.tentative.https.html
@@ -4,44 +4,17 @@
 <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 src="./resources/common.js"></script>
 <script>
 const {ORIGIN, REMOTE_ORIGIN} = get_host_info();
-const BASE = new URL("resources", location).pathname
-const FRAME_URL = `${ORIGIN}/common/blank.html` +
-  '?pipe=header(document-isolation-policy,isolate-and-require-corp)' +
-  `|header(document-isolation-policy-report-only,isolate-and-require-corp)`;
-const WORKER_URL = `${ORIGIN}${BASE}/reporting-worker.js` +
-  '?pipe=header(document-isolation-policy,isolate-and-require-corp)' +
-  `|header(document-isolation-policy-report-only,isolate-and-require-corp)`;
-const REPORTING_FRAME_URL = `${ORIGIN}${BASE}/reporting-empty-frame.html` +
-  '?pipe=header(document-isolation-policy,isolate-and-require-corp)' +
-  `|header(document-isolation-policy-report-only,isolate-and-require-corp)`;
 
-async function observeReports(global, expected_count) {
-  const reports = [];
-  const receivedEveryReports = new Promise(resolve => {
-    if (expected_count == 0)
-      resolve();
-
-    const observer = new global.ReportingObserver((rs) => {
-      for (const r of rs) {
-        reports.push(r.toJSON());
-      }
-      if (expected_count <= reports.length)
-        resolve();
-    });
-    observer.observe();
-
-  });
-
-  await receivedEveryReports;
-  // Wait 500ms more to catch additionnal unexpected reports.
-  await new Promise(r => step_timeout(r, 500));
-  return reports;
-}
+const header = (name, value) => `|header(${name},${value})`;
+const dip_reporting_header = header("document-isolation-policy", "isolate-and-require-corp") +
+  header("document-isolation-policy-report-only", "isolate-and-require-corp");
 
 function checkReport(report, contextUrl, blockedUrl, disposition, destination) {
   assert_equals(report.type, 'dip');
@@ -52,42 +25,68 @@ function checkReport(report, contextUrl, blockedUrl, disposition, destination) {
   assert_equals(report.body.destination, destination);
 }
 
-async function fetchInFrame(t, frameUrl, url, expected_count) {
-  const frame = await with_iframe(frameUrl);
-  t.add_cleanup(() => frame.remove());
-
-  const init = { mode: 'no-cors', cache: 'no-store' };
-  let future_reports = observeReports(frame.contentWindow, expected_count);
-  await frame.contentWindow.fetch(url, init).catch(() => {});
-
-  return await future_reports;
+function validateReports(reports, expected_count, check, context_url, resource_url) {
+  assert_equals(reports.length, expected_count);
+  check(reports, context_url, resource_url);
 }
 
-async function fetchInWorker(workerOrPort, url, expected_count) {
-  const reports = [];
-  const script =
-    `fetch('${url}', {mode: 'no-cors', cache: 'no-store'}).catch(() => {});`;
-  const mc = new MessageChannel();
+async function runRemoteContextTest(uuid, expected_count, check, context_url, 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 = [];
 
-  const receivedEveryReports = new Promise(resolve => {
-    if (expected_count == 0)
-      resolve();
+      // Register an observer that will wait for reports.
+      const receivedEveryReports = new Promise(resolve => {
+        if (count == 0)
+          resolve();
 
-    mc.port1.onmessage = (event) => {
-      reports.push(event.data);
-      if (expected_count <= reports.length)
-        resolve();
-    };
-  });
+        const observer = new ReportingObserver((rs) => {
+          for (const r of rs) {
+            reports_received.push(r.toJSON());
+          }
+          if (count <= reports_received.length)
+            resolve();
+        });
+        observer.observe();
 
-  // Have the worker execute the script.
-  workerOrPort.postMessage({script, port: mc.port2}, [mc.port2]);
+      });
 
-  await receivedEveryReports;
-  // Wait 500ms more to catch additionnal unexpected reports.
-  await new Promise(r => step_timeout(r, 500));
+      // Try to fetch the resource. This might be blocked by DocumentIsolationPolicy.
+      try {
+        const response = await fetch(url, {mode: 'no-cors', cache: 'no-store'});
+      } catch(error) {}
 
-  return reports;
+      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 context = await createIframeContext(t, `${ORIGIN}`, dip_reporting_header);
+  await runRemoteContextTest(context[0], expected_count, check, context[1], resource_url);
+}
+
+async function runDedicatedWorkerTest(t, check, resource_url, expected_count) {
+  // Create a worker which will inherit DocumentIsolationPolicy reporting from its creator.
+  const context = await createDedicatedWorkerContext(t, `${ORIGIN}`, dip_reporting_header);
+  await runRemoteContextTest(context[0], expected_count, check, context[1], resource_url);
+}
+
+async function runSharedWorkerTest(t, check, resource_url, expected_count) {
+  // Create a shared worker with DocumentIsolationPolicy reporting.
+  const context = await createSharedWorkerContext(t, `${ORIGIN}`, dip_reporting_header);
+  await runRemoteContextTest(context[0], expected_count, check, context[1], resource_url);
+}
+
+async function runIFrameWithServiceWorkerTest(t, check, resource_url, expected_count) {
+  // Create an iframe with DocumentIsolationPolicy reporting and a ServiceWorker.
+  const context = await createIframeWithSWContext(t, `${ORIGIN}`, dip_reporting_header);
+  await runRemoteContextTest(context[0], expected_count, check, context[1], resource_url);
 }
 
 // We want to test several URLs in various environments (document,
@@ -97,7 +96,6 @@ async function fetchInWorker(workerOrPort, url, expected_count) {
 //
 // ENVIRONMENTS is a list of dictionaries. Each dictionary consists of:
 //  - tag: the name of the environment
-//  - contextUrl: the URL of the environment settings object
 //  - run: an async function which generates reports
 //    - test: a testharness Test object
 //    - url: the URL for a test case (see below)
@@ -111,102 +109,48 @@ async function fetchInWorker(workerOrPort, url, expected_count) {
 //    - contextUrl: the URL of the environment settings object (see
 //                  ENVORONMENTS)
 
-const ENVIRONMENTS = [{
-  tag: 'document',
-  contextUrl: FRAME_URL,
-  run: async (test, url, expected_count) => {
-    return await fetchInFrame(test, FRAME_URL, url, expected_count);
-  },
-}, {
-  tag: 'dedicated worker',
-  contextUrl: WORKER_URL,
-  run: async (test, url, expected_count) => {
-    const worker = new Worker(WORKER_URL);
-    worker.addEventListener('error', test.unreached_func('Worker.onerror'));
-    test.add_cleanup(() => worker.terminate());
-    return await fetchInWorker(worker, url, expected_count);
-  },
-}, {
-  tag: 'shared worker',
-  contextUrl: WORKER_URL,
-  run: async (test, url, expected_count) => {
-    const worker = new SharedWorker(WORKER_URL);
-    worker.addEventListener('error', test.unreached_func('Worker.onerror'));
-    return await fetchInWorker(worker.port, url, expected_count);
-  },
-}, {
-  tag: 'between service worker and page',
-  contextUrl: REPORTING_FRAME_URL,
-  run: async (test, url, expected_count) => {
-    // Here we use a Service Worker without COEP.
-    const WORKER_URL = `${ORIGIN}${BASE}/sw.js`;
-    const reg = await service_worker_unregister_and_register(
-      test, WORKER_URL, REPORTING_FRAME_URL);
-    test.add_cleanup(() => reg.unregister());
-    const worker = reg.installing || reg.waiting || reg.active;
-    worker.addEventListener('error', test.unreached_func('Worker.onerror'));
-    return await fetchInFrame(
-      test, REPORTING_FRAME_URL, url, expected_count);
-  },
-}];
+const ENVIRONMENTS = {
+  "document": runIFrameTest,
+  "dedicated worker": runDedicatedWorkerTest,
+  "shared worker": runSharedWorkerTest,
+  "document with service worker": runIFrameWithServiceWorkerTest,
+};
 
-const CASES = [{
-  name: 'same-origin',
-  url: '/common/text-plain.txt',
-  expected_count: 0,
-  check: (reports, url, contextUrl) => {}
-}, {
-  name: 'blocked by CORP: same-origin',
-  url: `${REMOTE_ORIGIN}/common/blank.html?pipe=` +
-`header(cross-origin-resource-policy, same-origin)`,
-  expected_count: 0,
-  check: (reports, url, contextUrl) => {}
-}, {
-  name: 'blocked due to DIP',
-  url: `${REMOTE_ORIGIN}/common/text-plain.txt`,
-  expected_count: 2,
-  check: (reports, contextUrl, url) => {
-    checkReport(reports[0], contextUrl, url, 'reporting', '');
-    checkReport(reports[1], contextUrl, url, 'enforce', '');
+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(`${REMOTE_ORIGIN}/common/square.png`),
+    expected_count: 2,
+    check: (reports, contextUrl, url) => {
+      checkReport(reports[0], contextUrl, url, 'reporting', '');
+      checkReport(reports[1], contextUrl, url, 'enforce', '');
+    },
   }
-}, {
-  name: 'blocked during redirect',
-  url: `${ORIGIN}/common/redirect.py?location=` +
-    encodeURIComponent(`${REMOTE_ORIGIN}/common/text-plain.txt`),
-  expected_count: 2,
-  check: (reports, contextUrl, url) => {
-    checkReport(reports[0], contextUrl, url, 'reporting', '');
-    checkReport(reports[1], contextUrl, url, 'enforce', '');
-  },
-}];
+];
 
-for (const env of ENVIRONMENTS) {
+for (const [tag, run] of Object.entries(ENVIRONMENTS)) {
   for (const testcase of CASES) {
     promise_test(async (t) => {
-      const reports = await env.run(
-        t, testcase.url, testcase.expected_count);
-
-      assert_equals(reports.length, testcase.expected_count);
-      testcase.check(reports, env.contextUrl, testcase.url);
-    }, `[${env.tag}] ${testcase.name}`);
+      const reports =
+        await run(t, testcase.check, testcase.url, testcase.expected_count);
+    }, `[${tag}] ${testcase.name}`);
   }
 }
 
-// A test for a non-empty destination.
-promise_test(async (t) => {
-  const frame = await with_iframe(FRAME_URL);
-  t.add_cleanup(() => frame.remove());
-
-  const url = `${REMOTE_ORIGIN}/common/utils.js`;
-  const script = frame.contentDocument.createElement('script');
-  script.src = url;
-  const future_reports = observeReports(frame.contentWindow, 2);
-  frame.contentDocument.body.appendChild(script);
-
-  const reports = await future_reports;
-  assert_equals(reports.length, 2);
-  checkReport(reports[0], FRAME_URL, url, 'reporting', 'script');
-  checkReport(reports[1], FRAME_URL, url, 'enforce', 'script');
-}, 'destination: script');
-
 </script>
diff --git a/tests/wpt/tests/html/document-isolation-policy/reporting-subresource-corp.tentative.https.html.headers b/tests/wpt/tests/html/document-isolation-policy/reporting-subresource-corp.tentative.https.html.headers
deleted file mode 100644
index bcc6f0734d5..00000000000
--- a/tests/wpt/tests/html/document-isolation-policy/reporting-subresource-corp.tentative.https.html.headers
+++ /dev/null
@@ -1 +0,0 @@
-Document-Isolation-Policy: isolate-and-require-corp
diff --git a/tests/wpt/tests/html/document-isolation-policy/resources/common.js b/tests/wpt/tests/html/document-isolation-policy/resources/common.js
index df4bfcfc7d5..64c1f8df416 100644
--- a/tests/wpt/tests/html/document-isolation-policy/resources/common.js
+++ b/tests/wpt/tests/html/document-isolation-policy/resources/common.js
@@ -1,5 +1,8 @@
+
 const executor_path = '/common/dispatcher/executor.html?pipe=';
+const remote_executor_path = '/common/dispatcher/remote-executor.html?pipe=';
 const executor_worker_path = '/common/dispatcher/executor-worker.js?pipe=';
+const remote_executor_worker_path = '/common/dispatcher/remote-executor-worker.js?pipe=';
 const executor_service_worker_path = '/common/dispatcher/executor-service-worker.js?pipe=';
 
 // COEP
@@ -93,6 +96,79 @@ const newCredentiallessIframe = (parent_token, child_origin) => {
   return sub_document_token;
 };
 
+// The following functions create remote execution contexts with the matching
+// origins and headers. The first return value is the uuid that can be used
+// to instantiate a RemoteContext object. The second return value is the URL of
+// the context that was created.
+async function createIframeContext(t, origin, header) {
+  const uuid = token();
+  const frame_url = origin + remote_executor_path + header + '&uuid=' + uuid;
+  const frame = await with_iframe(frame_url);
+  t.add_cleanup(() => frame.remove());
+  return [uuid, frame_url];
+}
+
+async function createDedicatedWorkerContext(t, origin, header) {
+  const iframe_uuid = token();
+  const frame_url = origin + remote_executor_path + header + '&uuid=' + iframe_uuid;
+  const frame = await with_iframe(frame_url);
+  t.add_cleanup(() => frame.remove());
+
+  const uuid = token();
+  const worker_url = origin + remote_executor_worker_path + '&uuid=' + uuid;
+  const ctx = new RemoteContext(iframe_uuid);
+  await ctx.execute_script(
+    (url) => {
+      const worker = new Worker(url);
+    }, [worker_url]);
+  return [uuid, worker_url];
+}
+
+async function createSharedWorkerContext(t, origin, header) {
+  const uuid = token();
+  const worker_url = origin + remote_executor_worker_path + header + '&uuid=' + uuid;
+  const worker = new SharedWorker(worker_url);
+  worker.addEventListener('error', t.unreached_func('Worker.onerror'));
+  return [uuid, worker_url];
+}
+
+async function createIframeWithSWContext(t, origin, header) {
+  // Register a service worker with no headers.
+  const uuid = token();
+  const frame_url = origin + remote_executor_path + header + '&uuid=' + uuid;
+  const service_worker_url = origin + executor_service_worker_path;
+  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'));
+
+  const frame = await with_iframe(frame_url);
+  t.add_cleanup(() => {
+    reg.unregister();
+    frame.remove();
+  });
+  return [uuid, frame_url];
+}
+
+// A common interface for building the 4 type of execution contexts. Outputs the
+// token needed to create the RemoteContext.
+async function getTokenFromEnvironment(t,  environment, headers) {
+  switch(environment) {
+    case "document":
+      const iframe_context = await createIframeContext(t, window.origin, headers);
+      return iframe_context[0];
+    case "dedicated_worker":
+      const dedicated_worker_context = await createDedicatedWorkerContext(t, window.origin, headers);
+      return dedicated_worker_context[0];
+    case "shared_worker":
+      const shared_worker_context = await createSharedWorkerContext(t, window.origin, headers);
+      return shared_worker_context[0];
+    case "service_worker":
+      const sw_context = await createIframeWithSWContext(t, window.origin, headers);
+      return sw_context[0];
+  }
+}
+
 // A common interface for building the 4 type of execution contexts:
 // It outputs: [
 //   - The token to communicate with the environment.
diff --git a/tests/wpt/tests/html/document-isolation-policy/resources/report.py b/tests/wpt/tests/html/document-isolation-policy/resources/report.py
new file mode 100644
index 00000000000..3b677a91fdd
--- /dev/null
+++ b/tests/wpt/tests/html/document-isolation-policy/resources/report.py
@@ -0,0 +1,42 @@
+import json
+
+def main(request, response):
+    response.headers.set(b'Access-Control-Allow-Origin', b'*')
+    response.headers.set(b'Access-Control-Allow-Methods', b'OPTIONS, GET, POST')
+    response.headers.set(b'Access-Control-Allow-Headers', b'Content-Type')
+    response.headers.set(b'Cache-Control', b'no-cache, no-store, must-revalidate')
+    response.headers.set(b'Cross-Origin-Resource-Policy', b'cross-origin')
+
+    # CORS preflight
+    if request.method == u'OPTIONS':
+        return u''
+
+    uuidMap = {
+        b'endpoint': b'01234567-0123-0123-0123-0123456789AB',
+        b'report-only-endpoint': b'01234567-0123-0123-0123-0123456789CD'
+    }
+    key = 0
+    if b'endpoint' in request.GET:
+        key = uuidMap.get(request.GET[b'endpoint'], 0)
+
+    if b'key' in request.GET:
+        key = request.GET[b'key']
+
+    if key == 0:
+        response.status = 400
+        return u'invalid endpoint'
+
+    path = u'/'.join(request.url_parts.path.split(u'/')[:-1]) + u'/'
+    if request.method == u'POST':
+        reports = request.server.stash.take(key, path) or []
+        for report in json.loads(request.body):
+            reports.append(report)
+        request.server.stash.put(key, reports, path)
+        return u'done'
+
+    if request.method == u'GET':
+        response.headers.set(b'Content-Type', b'application/json')
+        return json.dumps(request.server.stash.take(key, path) or [])
+
+    response.status = 400
+    return u'invalid method'
diff --git a/tests/wpt/tests/html/semantics/popovers/popover-focus-tabindex.html b/tests/wpt/tests/html/semantics/popovers/popover-focus-tabindex.html
new file mode 100644
index 00000000000..f9c2342ba5e
--- /dev/null
+++ b/tests/wpt/tests/html/semantics/popovers/popover-focus-tabindex.html
@@ -0,0 +1,41 @@
+<!DOCTYPE html>
+<meta charset="utf-8" />
+<title>Popover focus behaviors</title>
+<meta name="timeout" content="long">
+<link rel="author" title="Edgar Chen" href="mailto:echen@mozilla.com">
+<link rel=help href="https://html.spec.whatwg.org/#flattened-tabindex-ordered-focus-navigation-scope">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/resources/testdriver.js"></script>
+<script src="/resources/testdriver-actions.js"></script>
+<script src="/resources/testdriver-vendor.js"></script>
+<script src="resources/popover-utils.js"></script>
+
+<div id=focus-tabindex>
+  <span tabindex=0>First other focusable element</span>
+  <button popovertarget=focus-tabindex-p tabindex="1">Toggle popover</button>
+  <div popover id=focus-tabindex-p>
+    Popover with <button tabindex="0">focusable element</button>
+  </div>
+  <span tabindex=0>Second other focusable element</span>
+</div>
+<script>
+promise_test(async t => {
+  const popover = document.querySelector('#focus-tabindex>[popover]');
+  t.add_cleanup(() => {
+    popover.hidePopover();
+  });
+
+  const invoker = document.querySelector('#focus-tabindex>button');
+  const others = document.querySelectorAll('#focus-tabindex>span');
+  invoker.focus(); // Make sure button is focused.
+  assert_equals(document.activeElement, invoker);
+  invoker.click(); // Activate the invoker
+  assert_true(popover.matches(':popover-open'), 'Popover should be invoked by invoker');
+  assert_equals(document.activeElement, invoker, 'Invoker should still be focused');
+  others[1].focus();
+  assert_equals(document.activeElement, others[1], "Second focused element should be focused");
+  await sendShiftTab();
+  assert_equals(document.activeElement, others[0], 'Popover should be skipped since its invoker has different tabindex');
+}, "Cases where the popover invoker has different tabindex");
+</script>
diff --git a/tests/wpt/tests/resources/testdriver.js b/tests/wpt/tests/resources/testdriver.js
index 15f3a4b7cc7..460f879878f 100644
--- a/tests/wpt/tests/resources/testdriver.js
+++ b/tests/wpt/tests/resources/testdriver.js
@@ -1437,7 +1437,7 @@
          * @param {String} sample - A `virtual pressure state
          *                          <https://w3c.github.io/compute-pressure/#dom-pressurestate>`_
          *                          such as "critical".
-         * @param {number} estimate - Optional, A `virtual own contribution estimate`
+         * @param {number} own_contribution_estimate - Optional, A `virtual own contribution estimate`
          *                          <https://w3c.github.io/compute-pressure/?experimental=1#the-owncontributionestimate-attribute>`_
          * @param {WindowProxy} [context=null] - Browsing context in which to
          *                                       run the call, or null for the
@@ -1449,8 +1449,8 @@
          *                    virtual pressure source of the given type does not
          *                    exist).
          */
-        update_virtual_pressure_source: function(source_type, sample, estimate, context=null) {
-            return window.test_driver_internal.update_virtual_pressure_source(source_type, sample, estimate, context);
+        update_virtual_pressure_source: function(source_type, sample, own_contribution_estimate, context=null) {
+            return window.test_driver_internal.update_virtual_pressure_source(source_type, sample, own_contribution_estimate, context);
         },
 
         /**
@@ -1748,7 +1748,7 @@
             throw new Error("create_virtual_pressure_source() is not implemented by testdriver-vendor.js");
         },
 
-        async update_virtual_pressure_source(source_type, sample, estimate, context=null) {
+        async update_virtual_pressure_source(source_type, sample, own_contribution_estimate, context=null) {
             throw new Error("update_virtual_pressure_source() is not implemented by testdriver-vendor.js");
         },
 
diff --git a/tests/wpt/tests/screen-capture/tentative/getdisplaymedia-captured-surface-resolution.https.html b/tests/wpt/tests/screen-capture/tentative/getdisplaymedia-captured-surface-resolution.https.html
index a1e7997ca69..6064bced90b 100644
--- a/tests/wpt/tests/screen-capture/tentative/getdisplaymedia-captured-surface-resolution.https.html
+++ b/tests/wpt/tests/screen-capture/tentative/getdisplaymedia-captured-surface-resolution.https.html
@@ -39,7 +39,7 @@
       assert_greater_than(settings.physicalHeight, 0);
       assert_equals(settings.physicalWidth / screenDetails.screens[0].devicePixelRatio, settings.logicalWidth);
       assert_equals(settings.physicalHeight / screenDetails.screens[0].devicePixelRatio, settings.logicalHeight);
-      assert_equals(screenDetails.screens[0].devicePixelRatio, settings.pixelRatio);
+      assert_equals(screenDetails.screens[0].devicePixelRatio, settings.screenPixelRatio);
       assert_equals(capabilities.width.max, settings.physicalWidth);
       assert_equals(capabilities.height.max, settings.physicalHeight);
     };
@@ -64,7 +64,7 @@
       assert_greater_than(settings.physicalHeight, 0);
       assert_equals(settings.physicalWidth / screenDetails.screens[0].devicePixelRatio, settings.logicalWidth);
       assert_equals(settings.physicalHeight / screenDetails.screens[0].devicePixelRatio, settings.logicalHeight);
-      assert_equals(screenDetails.screens[0].devicePixelRatio, settings.pixelRatio);
+      assert_equals(screenDetails.screens[0].devicePixelRatio, settings.screenPixelRatio);
       assert_equals(capabilities.width.max, settings.physicalWidth);
       assert_equals(capabilities.height.max, settings.physicalHeight);
     };
@@ -87,7 +87,7 @@
       assert_greater_than(settings.physicalHeight, 0);
       assert_equals(settings.physicalWidth / window.devicePixelRatio, settings.logicalWidth);
       assert_equals(settings.physicalHeight / window.devicePixelRatio, settings.logicalHeight);
-      assert_equals(window.devicePixelRatio, settings.pixelRatio);
+      assert_equals(window.devicePixelRatio, settings.screenPixelRatio);
       assert_equals(capabilities.width.max, settings.physicalWidth);
       assert_equals(capabilities.height.max, settings.physicalHeight);
     };
@@ -123,7 +123,7 @@
       assert_equals(oldPhysicalHeight, settings.physicalHeight);
       assert_equals(oldPhysicalWidth / screenDetails.screens[0].devicePixelRatio, settings.logicalWidth);
       assert_equals(oldPhysicalHeight / screenDetails.screens[0].devicePixelRatio, settings.logicalHeight);
-      assert_equals(screenDetails.screens[0].devicePixelRatio, settings.pixelRatio);
+      assert_equals(screenDetails.screens[0].devicePixelRatio, settings.screenPixelRatio);
       assert_equals(capabilities.width.max, settings.physicalWidth);
       assert_equals(capabilities.height.max, settings.physicalHeight);
     };
@@ -159,7 +159,7 @@
       assert_equals(oldPhysicalHeight, settings.physicalHeight);
       assert_equals(oldPhysicalWidth / screenDetails.screens[0].devicePixelRatio, settings.logicalWidth);
       assert_equals(oldPhysicalHeight / screenDetails.screens[0].devicePixelRatio, settings.logicalHeight);
-      assert_equals(screenDetails.screens[0].devicePixelRatio, settings.pixelRatio);
+      assert_equals(screenDetails.screens[0].devicePixelRatio, settings.screenPixelRatio);
       assert_equals(capabilities.width.max, settings.physicalWidth);
       assert_equals(capabilities.height.max, settings.physicalHeight);
     };
@@ -193,7 +193,7 @@
       assert_equals(oldPhysicalHeight, settings.physicalHeight);
       assert_equals(oldPhysicalWidth / window.devicePixelRatio, settings.logicalWidth);
       assert_equals(oldPhysicalHeight / window.devicePixelRatio, settings.logicalHeight);
-      assert_equals(window.devicePixelRatio, settings.pixelRatio);
+      assert_equals(window.devicePixelRatio, settings.screenPixelRatio);
       assert_equals(capabilities.width.max, settings.physicalWidth);
       assert_equals(capabilities.height.max, settings.physicalHeight);
     };
diff --git a/tests/wpt/tests/scroll-animations/animation-trigger/animation-trigger-getanimations.tentative.html b/tests/wpt/tests/scroll-animations/animation-trigger/animation-trigger-getanimations.tentative.html
new file mode 100644
index 00000000000..08d509d8cb2
--- /dev/null
+++ b/tests/wpt/tests/scroll-animations/animation-trigger/animation-trigger-getanimations.tentative.html
@@ -0,0 +1,68 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <link rel="help" href="https://drafts.csswg.org/web-animations-2#animation-trigger">
+    <script src="/resources/testharness.js"></script>
+    <script src="/resources/testharnessreport.js"></script>
+  </head>
+  <body>
+    <style>
+      .scroller {
+        overflow-y: scroll;
+        border: solid 1px;
+        place-self: center;
+        height: 300px;
+        width: 200px;
+      }
+      @keyframes slide-in {
+        from {
+          transform: translateX(-50px);
+        }
+      }
+      .target {
+        height: 100px;
+        width: 100%;
+        background-color: blue;
+        animation: slide-in 3s;
+        animation-trigger: view() alternate contain 0% contain 100%;
+      }
+      .target {
+        height: 100px;
+        width: 100%;
+        background-color: blue;
+      }
+      .space {
+        height: 250px;
+        width: 50%;
+      }
+
+      .active {
+        animation-fill-mode: both;
+      }
+      .idle {
+        animation-fill-mode: none;
+      }
+
+    </style>
+    <div id="scroller" class="scroller">
+      <div class="space"></div>
+      <div id="subject"></div>
+      <div class="space"></div>
+      <div id="active_target" class="active target"></div>
+      <div id="idle_target" class="idle target"></div>
+    </div>
+    <script>
+      promise_test(async () => {
+        assert_equals(idle_target.getAnimations().length, 1,
+        "idle target has an animation");
+      }, "getAnimations includes an untriggered " +
+         "'fill-mode: none' animation.");
+
+      promise_test(async () => {
+        assert_equals(active_target.getAnimations().length, 1,
+          "active target has an animation");
+      }, "getAnimations does include an untriggered " +
+          "'fill-mode: both' animation.");
+    </script>
+  </body>
+</html>
diff --git a/tests/wpt/tests/scroll-animations/animation-trigger/animation-trigger.html b/tests/wpt/tests/scroll-animations/animation-trigger/animation-trigger.html
index dd4820dfe5f..7506fb05829 100644
--- a/tests/wpt/tests/scroll-animations/animation-trigger/animation-trigger.html
+++ b/tests/wpt/tests/scroll-animations/animation-trigger/animation-trigger.html
@@ -24,13 +24,13 @@
       .target {
         animation: myAnim linear 0.5s forwards;
       }
-      .scroll_target {
+      #scroll_target {
         animation-trigger: repeat scroll(inline) 150px 200px 100px 250px;
       }
-      .view_target {
+      #view_target {
         animation-trigger: state view(x) contain 10% contain 90% cover 10% cover 90%;
       }
-      .deferred_target {
+      #deferred_target {
         animation-trigger: alternate --viewtimeline contain 5% contain 80% cover 5% cover 80%;
       }
       .scroller {
@@ -108,15 +108,7 @@
 
       promise_test(async() => {
         await waitForNextFrame();
-        // Grabbing a reference to the animation and *then* adding the class
-        // which confers the trigger properties is a workaround to the fact that
-        // if the scroll-based trigger were already in place, the animation
-        // would be idle, getAnimations would not include it, and we would not
-        // be able to get a reference to it.
-        // TODO: if the definition for getAnimations changes such that it should
-        // include un-triggered animations, we should remove this workaround.
         const animation = scroll_target.getAnimations()[0];
-        scroll_target.classList.add("scroll_target");
         const trigger = animation.trigger;
         await waitForNextFrame();
 
@@ -136,7 +128,6 @@
       promise_test(async() => {
         await waitForNextFrame();
         const animation = view_target.getAnimations()[0];
-        view_target.classList.add("view_target");
         const trigger = animation.trigger;
         await waitForNextFrame();
 
@@ -157,7 +148,6 @@
       promise_test(async() => {
         await waitForNextFrame();
         const animation = deferred_target.getAnimations()[0];
-        deferred_target.classList.add("deferred_target");
         const trigger = animation.trigger;
         await waitForNextFrame();
 
diff --git a/tests/wpt/tests/svg/painting/reftests/WEB_FEATURES.yml b/tests/wpt/tests/svg/painting/reftests/WEB_FEATURES.yml
new file mode 100644
index 00000000000..123f8c0419a
--- /dev/null
+++ b/tests/wpt/tests/svg/painting/reftests/WEB_FEATURES.yml
@@ -0,0 +1,4 @@
+features:
+- name: context-fill-stroke
+  files:
+  - paint-context-*
diff --git a/tests/wpt/tests/tools/lint/tests/test_file_lints.py b/tests/wpt/tests/tools/lint/tests/test_file_lints.py
index 92270e38a69..f6311043293 100644
--- a/tests/wpt/tests/tools/lint/tests/test_file_lints.py
+++ b/tests/wpt/tests/tools/lint/tests/test_file_lints.py
@@ -1236,6 +1236,34 @@ def test_invalid_web_features_file():
     assert errors == []
 
 
+def test_duplicate_keys_invalid_web_features_file():
+    code = b"""\
+features:
+- name: feature1
+  files:
+  - feature1-*
+features:
+- name: feature2
+  files:
+  - "feature2-*"
+"""
+    # Check when the value is named correctly. It should find the error.
+    errors = check_file_contents("", "css/WEB_FEATURES.yml", io.BytesIO(code))
+    check_errors(errors)
+
+    assert errors == [
+        ('INVALID-WEB-FEATURES-FILE',
+         'The WEB_FEATURES.yml file contains an invalid structure',
+         "css/WEB_FEATURES.yml",
+         None),
+    ]
+
+    # Check when the value is named incorrectly. It should not find the error.
+    errors = check_file_contents("", "css/OTHER_WEB_FEATURES.yml", io.BytesIO(code))
+    check_errors(errors)
+
+    assert errors == []
+
 def test_css_missing_file_manual():
     errors = check_file_contents("", "css/foo/bar-manual.html", io.BytesIO(b""))
     check_errors(errors)
diff --git a/tests/wpt/tests/tools/metadata/yaml/load.py b/tests/wpt/tests/tools/metadata/yaml/load.py
index 831f7e8fff1..c6813f23392 100644
--- a/tests/wpt/tests/tools/metadata/yaml/load.py
+++ b/tests/wpt/tests/tools/metadata/yaml/load.py
@@ -3,9 +3,24 @@ from ..meta.schema import SchemaValue
 
 import yaml
 
+# PyYaml does not currently handle unique keys.
+# https://github.com/yaml/pyyaml/issues/165#issuecomment-430074049
+# In that issue, there are workarounds to it.
+# https://gist.github.com/pypt/94d747fe5180851196eb?permalink_comment_id=4015118#gistcomment-4015118
+
+class UniqueKeyLoader(yaml.SafeLoader):
+    def construct_mapping(self, node: yaml.MappingNode, deep: bool = False) -> Dict[Any, Any]:
+        mapping = set()
+        for key_node, value_node in node.value:
+            key = self.construct_object(key_node, deep=deep)  # type: ignore
+            if key in mapping:
+                raise ValueError(f"Duplicate {key!r} key found in YAML.")
+            mapping.add(key)
+        return super().construct_mapping(node, deep)
+
 def load_data_to_dict(f: IO[bytes]) -> Dict[str, Any]:
     try:
-        raw_data = yaml.safe_load(f)
+        raw_data = yaml.load(f, Loader=UniqueKeyLoader)
         return SchemaValue.from_dict(raw_data)
     except Exception as e:
         raise e
diff --git a/tests/wpt/tests/tools/wptrunner/wptrunner/executors/actions.py b/tests/wpt/tests/tools/wptrunner/wptrunner/executors/actions.py
index 06d58e7e87b..10b5eeb6b94 100644
--- a/tests/wpt/tests/tools/wptrunner/wptrunner/executors/actions.py
+++ b/tests/wpt/tests/tools/wptrunner/wptrunner/executors/actions.py
@@ -498,8 +498,8 @@ class UpdateVirtualPressureSourceAction:
     def __call__(self, payload):
         source_type = payload["source_type"]
         sample = payload["sample"]
-        estimate = payload["estimate"]
-        return self.protocol.pressure.update_virtual_pressure_source(source_type, sample, estimate)
+        own_contribution_estimate = payload["own_contribution_estimate"]
+        return self.protocol.pressure.update_virtual_pressure_source(source_type, sample, own_contribution_estimate)
 
 class RemoveVirtualPressureSourceAction:
     name = "remove_virtual_pressure_source"
diff --git a/tests/wpt/tests/tools/wptrunner/wptrunner/executors/executormarionette.py b/tests/wpt/tests/tools/wptrunner/wptrunner/executors/executormarionette.py
index 67f11aefa00..110466e47ab 100644
--- a/tests/wpt/tests/tools/wptrunner/wptrunner/executors/executormarionette.py
+++ b/tests/wpt/tests/tools/wptrunner/wptrunner/executors/executormarionette.py
@@ -721,7 +721,7 @@ class MarionetteVirtualPressureSourceProtocolPart(VirtualPressureSourceProtocolP
     def create_virtual_pressure_source(self, source_type, metadata):
         raise NotImplementedError("create_virtual_pressure_source not yet implemented")
 
-    def update_virtual_pressure_source(self, source_type, sample, estimate):
+    def update_virtual_pressure_source(self, source_type, sample, own_contribution_estimate):
         raise NotImplementedError("update_virtual_pressure_source not yet implemented")
 
     def remove_virtual_pressure_source(self, source_type):
diff --git a/tests/wpt/tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py b/tests/wpt/tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py
index d0c1f9e64a4..45ddb57c9ae 100644
--- a/tests/wpt/tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py
+++ b/tests/wpt/tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py
@@ -685,8 +685,8 @@ class WebDriverVirtualPressureSourceProtocolPart(VirtualPressureSourceProtocolPa
         body.update(metadata)
         return self.webdriver.send_session_command("POST", "pressuresource", body)
 
-    def update_virtual_pressure_source(self, source_type, sample, estimate):
-        body = {"sample": sample, "estimate": estimate}
+    def update_virtual_pressure_source(self, source_type, sample, own_contribution_estimate):
+        body = {"sample": sample, "own_contribution_estimate": own_contribution_estimate}
         return self.webdriver.send_session_command("POST", "pressuresource/%s" % source_type, body)
 
     def remove_virtual_pressure_source(self, source_type):
diff --git a/tests/wpt/tests/tools/wptrunner/wptrunner/executors/protocol.py b/tests/wpt/tests/tools/wptrunner/wptrunner/executors/protocol.py
index 53a7b437848..5190b266401 100644
--- a/tests/wpt/tests/tools/wptrunner/wptrunner/executors/protocol.py
+++ b/tests/wpt/tests/tools/wptrunner/wptrunner/executors/protocol.py
@@ -1009,7 +1009,7 @@ class VirtualPressureSourceProtocolPart(ProtocolPart):
         pass
 
     @abstractmethod
-    def update_virtual_pressure_source(self, source_type, sample, estimate):
+    def update_virtual_pressure_source(self, source_type, sample, own_contribution_estimate):
         pass
 
     @abstractmethod
diff --git a/tests/wpt/tests/tools/wptrunner/wptrunner/testdriver-extra.js b/tests/wpt/tests/tools/wptrunner/wptrunner/testdriver-extra.js
index 71c1be2732f..5d37cf5e15f 100644
--- a/tests/wpt/tests/tools/wptrunner/wptrunner/testdriver-extra.js
+++ b/tests/wpt/tests/tools/wptrunner/wptrunner/testdriver-extra.js
@@ -468,8 +468,8 @@
         return create_context_action("create_virtual_pressure_source", context, {source_type, metadata});
     };
 
-    window.test_driver_internal.update_virtual_pressure_source = function(source_type, sample, estimate, context=null) {
-        return create_context_action("update_virtual_pressure_source", context, {source_type, sample, estimate});
+    window.test_driver_internal.update_virtual_pressure_source = function(source_type, sample, own_contribution_estimate, context=null) {
+        return create_context_action("update_virtual_pressure_source", context, {source_type, sample, own_contribution_estimate});
     };
 
     window.test_driver_internal.remove_virtual_pressure_source = function(source_type, context=null) {
diff --git a/tests/wpt/tests/web-animations/animation-model/animation-types/property-list.js b/tests/wpt/tests/web-animations/animation-model/animation-types/property-list.js
index 9cfd90d17f2..21f39b1fc18 100644
--- a/tests/wpt/tests/web-animations/animation-model/animation-types/property-list.js
+++ b/tests/wpt/tests/web-animations/animation-model/animation-types/property-list.js
@@ -25,6 +25,12 @@ const gCSSProperties1 = {
       { type: 'discrete', options: [ [ 'flex-start', 'flex-end' ] ] }
     ]
   },
+  'anchor-name': {
+    // https://drafts.csswg.org/css-anchor-position-1/#name
+    types: [
+      { type: 'discrete', options: [ [ 'none', '--anchor' ] ] }
+    ]
+  },
   'anchor-scope': {
     // https://drafts.csswg.org/css-anchor-position-1/#anchor-scope
     types: [
@@ -1279,6 +1285,30 @@ const gCSSProperties2 = {
       { type: 'discrete', options: [ [ 'absolute', 'fixed' ] ] }
     ]
   },
+  'position-anchor': {
+    // https://drafts.csswg.org/css-anchor-position-1/#position-anchor
+    types: [
+      { type: 'discrete', options: [ [ 'auto', '--anchor' ] ] }
+    ]
+  },
+  'position-visibility': {
+    // https://drafts.csswg.org/css-anchor-position-1/#position-visibility
+    types: [
+      { type: 'discrete', options: [ [ 'always', 'anchors-valid' ] ] }
+    ]
+  },
+  'position-try-fallbacks': {
+    // https://drafts.csswg.org/css-anchor-position-1/#position-try-fallbacks
+    types: [
+      { type: 'discrete', options: [ [ 'none', 'flip-block' ] ] }
+    ]
+  },
+  'position-try-order': {
+    // https://drafts.csswg.org/css-anchor-position-1/#position-try-order-property
+    types: [
+      { type: 'discrete', options: [ [ 'normal', 'most-width' ] ] }
+    ]
+  },
   'quotes': {
     // https://drafts.csswg.org/css-content-3/#propdef-quotes
     types: [
diff --git a/tests/wpt/tests/webrtc/rtp-stats-lifetime.https.html b/tests/wpt/tests/webrtc/rtp-stats-lifetime.https.html
new file mode 100644
index 00000000000..4ddd6ad4f16
--- /dev/null
+++ b/tests/wpt/tests/webrtc/rtp-stats-lifetime.https.html
@@ -0,0 +1,102 @@
+<!doctype html>
+<meta charset=utf-8>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="RTCPeerConnection-helper.js"></script>
+<script>
+'use strict';
+
+async function hasStats(pc, type) {
+  const report = await pc.getStats();
+  for (const stats of report.values()) {
+    if (stats.type == type) {
+      return true;
+    }
+  }
+  return false;
+}
+
+async function getInboundRtpPollUntilItExists(pc, kTimeoutMs = 10000) {
+  const t0 = performance.now();
+  while (performance.now() - t0 < kTimeoutMs) {
+    const report = await pc.getStats();
+    for (const stats of report.values()) {
+      if (stats.type == 'inbound-rtp') {
+        return stats;
+      }
+    }
+  }
+  return null;
+}
+
+promise_test(async t => {
+  const pc = new RTCPeerConnection();
+  t.add_cleanup(() => pc.close());
+
+  pc.addTransceiver('video');
+  assert_false(await hasStats(pc, 'outbound-rtp'),
+               'outbound-rtp does not exist after addTransceiver');
+  await pc.setLocalDescription();
+  assert_false(await hasStats(pc, 'outbound-rtp'),
+              'outbound-rtp does not exist in have-local-offer');
+}, `RTCOutboundRtpStreamStats does not exist as early as have-local-offer`);
+
+// This test does not exchange ICE candidates, meaning no packets are sent.
+// We should still see outbound-rtp stats because they are created by the O/A.
+promise_test(async t => {
+  const pc1 = new RTCPeerConnection();
+  t.add_cleanup(() => pc1.close());
+  const pc2 = new RTCPeerConnection();
+  t.add_cleanup(() => pc1.close());
+
+  // Offer to send. See previous test for assertions that the outbound-rtp is
+  // not created this early, which this test does not care about.
+  pc1.addTransceiver('video');
+  await pc1.setLocalDescription();
+
+  // Answer to send.
+  await pc2.setRemoteDescription(pc1.localDescription);
+  const [transceiver] = pc2.getTransceivers();
+  transceiver.direction = 'sendrecv';
+  assert_false(await hasStats(pc2, 'outbound-rtp'),
+               'outbound-rtp does not exist in has-remote-offer');
+  await pc2.setLocalDescription();
+  assert_true(await hasStats(pc2, 'outbound-rtp'),
+              'outbound-rtp exists after answerer returns to stable');
+
+  // Complete offerer negotiation.
+  await pc1.setRemoteDescription(pc2.localDescription);
+  assert_true(await hasStats(pc1, 'outbound-rtp'),
+              'outbound-rtp exists after offerer returns to stable');
+}, `RTCOutboundRtpStreamStats exists after returning to stable`);
+
+promise_test(async t => {
+  const pc1 = new RTCPeerConnection();
+  t.add_cleanup(() => pc1.close());
+  const pc2 = new RTCPeerConnection();
+  t.add_cleanup(() => pc1.close());
+  pc1.onicecandidate = e => pc2.addIceCandidate(e.candidate);
+  pc2.onicecandidate = e => pc1.addIceCandidate(e.candidate);
+
+  // Negotaite to send, but don't send anything yet (track is null).
+  const {sender} = pc1.addTransceiver('video');
+  await pc1.setLocalDescription();
+  await pc2.setRemoteDescription(pc1.localDescription);
+  await pc2.setLocalDescription();
+  await pc1.setRemoteDescription(pc2.localDescription);
+  assert_false(await hasStats(pc2, 'inbound-rtp'),
+               'inbound-rtp does not exist before packets are received');
+
+  // Start sending. This results in inbound-rtp being created.
+  const stream = await getNoiseStream({video:true});
+  const [track] = stream.getTracks();
+  await sender.replaceTrack(track);
+  const inboundRtp = await getInboundRtpPollUntilItExists(pc2);
+  assert_not_equals(
+      inboundRtp, null,
+      'inbound-rtp should be created in response to the sender having a track');
+  assert_greater_than(
+      inboundRtp.packetsReceived, 0,
+      'inbound-rtp must only exist after packets have been received');
+}, `RTCInboundRtpStreamStats are created by packet reception`);
+</script>