From 5e74467d6812d9d6cd25924445e403b506f23a4a Mon Sep 17 00:00:00 2001
From: WPT Sync Bot <josh+wptsync@joshmatthews.net>
Date: Thu, 12 Dec 2019 08:22:50 +0000
Subject: [PATCH] Update web-platform-tests to revision
 548818eee08f7a6e31b9706b352b5d44b2f6d024

---
 .../url/url-in-tags-revoke.window.js.ini      |   2 +-
 tests/wpt/metadata/MANIFEST.json              | 527 +++++++++++++-----
 ...on-from-ua-to-blocking-stylesheet.html.ini |   2 +-
 ...ediaQueryList-extends-EventTarget.html.ini |   8 +
 .../custom-elements/adopted-callback.html.ini |  42 ++
 .../metadata/dom/nodes/adoption.window.js.ini |  16 +
 .../api/redirect/redirect-method.any.js.ini   |   6 +
 .../fetch/content-type/response.window.js.ini |  21 +
 .../nosniff/parsing-nosniff.window.js.ini     |   3 +
 ...mbedded-credentials.tentative.sub.html.ini |   2 +-
 .../traverse_the_history_1.html.ini           |   4 -
 .../traverse_the_history_5.html.ini           |   4 +
 ...ument-domain-nested-navigate.window.js.ini |   4 +
 .../supported-elements.html.ini               |   3 +-
 .../the-style-element/mutations.window.js.ini |   3 +
 .../iframe_sandbox_popups_escaping-3.html.ini |   3 +-
 ...-validation-validity-stepMismatch.html.ini |   9 +
 .../htmlanchorelement_noopener.html.ini       |   2 +-
 .../crossorigin-sandwich-TAO.sub.html.ini     |   1 +
 .../webmessaging/with-ports/018.html.ini      |   5 -
 .../webmessaging/without-ports/017.html.ini   |   5 +
 .../webmessaging/without-ports/018.html.ini   |   5 -
 ...utSource_gamepad_disconnect.https.html.ini |   0
 ...ce_gamepad_input_registered.https.html.ini |   0
 .../xrRay_constructor.https.html.ini          |   0
 .../xrRay_matrix.https.html.ini               |   0
 .../web-platform-tests/.azure-pipelines.yml   |   1 -
 .../css-paint-api/setTransform-001.https.html |  38 ++
 .../css-paint-api/setTransform-002.https.html |  35 ++
 .../css-paint-api/setTransform-003.https.html |  36 ++
 .../css-paint-api/setTransform-004.https.html |  36 ++
 .../css/css-paint-api/setTransform-ref.html   |  15 +
 ...osition-absolute-center-001.tentative.html |  37 ++
 ...osition-absolute-center-002.tentative.html |  37 ++
 ...rker-font-variant-numeric-default-ref.html |   1 +
 .../marker-font-variant-numeric-default.html  |   1 -
 ...arker-font-variant-numeric-normal-ref.html |   1 +
 .../marker-font-variant-numeric-normal.html   |   1 -
 .../marker-unicode-bidi-default-ref.html      |   1 +
 .../marker-unicode-bidi-default.html          |   1 -
 .../marker-unicode-bidi-normal-ref.html       |   1 +
 .../marker-unicode-bidi-normal.html           |   1 -
 .../hyphens/hyphens-overflow-001.html         |   4 +
 .../reference/hyphens-overflow-001-ref.html   |   5 +
 .../css/css-typed-om/idlharness.html          |   1 +
 .../css/cssom-view/resources/matchMedia.js    |   4 +-
 ...set-anchor-transform-box-fill-box-003.html |  19 +
 .../custom-elements/adopted-callback.html     |  32 ++
 .../docs/writing-tests/testdriver.md          |  56 +-
 .../dom/nodes/adoption.window.js              |  58 ++
 .../fetch/api/redirect/redirect-method.any.js |  65 ++-
 .../fetch/api/resources/method.py             |   5 +
 .../document-domain-nested-navigate.window.js |  16 +
 .../document-domain-nested-set.window.js      |  10 +
 .../windows/document-domain-nested.window.js  |   9 +
 .../img-aspect-ratio.html                     |   4 +-
 .../the-style-element/mutations.window.js     |   9 +
 ...form-validation-validity-stepMismatch.html |   5 +-
 .../forms/constraints/support/validator.js    | 238 +++++---
 .../template-content-hierarcy.html            |  22 +-
 ...multiTouchPointsReleaseFirstPoint.html.ini |   6 +
 ...ultiTouchPointsReleaseSecondPoint.html.ini |   6 +
 .../testdriver/generate_test_report.html.ini  |   6 +-
 .../testdriver/set_permission.https.html.ini  |   9 +-
 .../testdriver/virtual_authenticator.html.ini |  29 +-
 .../multiTouchPointsReleaseFirstPoint.html    |  56 ++
 .../multiTouchPointsReleaseSecondPoint.html   |  56 ++
 .../testdriver/virtual_authenticator.html     |   2 +-
 .../interfaces/cookie-store.idl               |  26 +-
 .../interfaces/feature-policy.idl             |   2 +
 .../web-platform-tests/interfaces/webrtc.idl  |  17 -
 .../web-platform-tests/interfaces/webxr.idl   |   2 +-
 .../image-loading-lazy.tentative.html         |   5 +
 .../longtask-timing/buffered-flag.window.js   |   2 +-
 .../mediasource-getvideoplaybackquality.html  |  43 --
 ...pulation-inside-portal-with-subframes.html |   8 +-
 .../history-manipulation-inside-portal.html   |   8 +-
 ...manipulate-history-with-subframes.sub.html |  12 +-
 .../resources/portal-manipulate-history.html  |   8 +-
 .../resources/testharness.css.headers         |   2 -
 .../scroll-to-text-fragment/META.yml          |   4 +
 .../scroll-to-text-fragment-security.html     |  78 +++
 .../scroll-to-text-fragment-target.html       |  10 +-
 .../scroll-to-text-fragment.html              |  84 +--
 .../scroll-to-text-fragment/stash.js          |  23 +
 .../scroll-to-text-fragment/stash.py          |  17 +
 .../streams/piping/general.any.js             |  10 +
 .../streams/piping/pipe-through.any.js        |  11 +
 .../tools/ci/azure/affected_tests.yml         |   1 -
 .../tools/ci/taskcluster-run.py               |   7 +-
 .../tools/ci/tc/tasks/test.yml                |   2 +-
 .../tools/docker/Dockerfile                   |   3 +
 .../wpt/web-platform-tests/tools/lint/lint.py |   4 -
 .../web-platform-tests/tools/lint/rules.py    |   5 -
 .../tools/lint/tests/test_file_lints.py       |  23 -
 .../wptrunner/wptrunner/browsers/servo.py     |   1 +
 .../wptrunner/wptrunner/executors/base.py     |   7 +-
 .../wptrunner/executors/executormarionette.py |  48 +-
 .../wptrunner/executors/executorwebdriver.py  |   6 +-
 .../wptrunner/wptrunner/testdriver-extra.js   |   2 +-
 .../tools/wptrunner/wptrunner/testrunner.py   |  29 +-
 .../wptrunner/wptrunner/tests/__init__.py     |   7 +
 .../tools/wptrunner/wptrunner/wpttest.py      |   6 +
 ...ent-to-Element-setAttribute.tentative.html |   7 +-
 ...ed-types-createHTMLDocument.tentative.html |   2 +-
 ...usted-types-duplicate-names.tentative.html |  16 +-
 .../tests/new_session/default_values.py       |   9 -
 ...nection-setRemoteDescription-rollback.html |  13 +
 ...rInputSource_gamepad_disconnect.https.html |   4 +-
 ...Source_gamepad_input_registered.https.html |   4 +-
 .../xrRay_constructor.https.html              |   4 +-
 .../{ => hit-test}/xrRay_matrix.https.html    |   6 +-
 112 files changed, 1704 insertions(+), 536 deletions(-)
 create mode 100644 tests/wpt/metadata/css/cssom-view/MediaQueryList-extends-EventTarget.html.ini
 create mode 100644 tests/wpt/metadata/dom/nodes/adoption.window.js.ini
 delete mode 100644 tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_1.html.ini
 create mode 100644 tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_5.html.ini
 create mode 100644 tests/wpt/metadata/html/browsers/windows/document-domain-nested-navigate.window.js.ini
 delete mode 100644 tests/wpt/metadata/webmessaging/with-ports/018.html.ini
 create mode 100644 tests/wpt/metadata/webmessaging/without-ports/017.html.ini
 delete mode 100644 tests/wpt/metadata/webmessaging/without-ports/018.html.ini
 rename tests/wpt/metadata/webxr/{ => gamepads-module}/xrInputSource_gamepad_disconnect.https.html.ini (100%)
 rename tests/wpt/metadata/webxr/{ => gamepads-module}/xrInputSource_gamepad_input_registered.https.html.ini (100%)
 rename tests/wpt/metadata/webxr/{ => hit-test}/xrRay_constructor.https.html.ini (100%)
 rename tests/wpt/metadata/webxr/{ => hit-test}/xrRay_matrix.https.html.ini (100%)
 create mode 100644 tests/wpt/web-platform-tests/css/css-paint-api/setTransform-001.https.html
 create mode 100644 tests/wpt/web-platform-tests/css/css-paint-api/setTransform-002.https.html
 create mode 100644 tests/wpt/web-platform-tests/css/css-paint-api/setTransform-003.https.html
 create mode 100644 tests/wpt/web-platform-tests/css/css-paint-api/setTransform-004.https.html
 create mode 100644 tests/wpt/web-platform-tests/css/css-paint-api/setTransform-ref.html
 create mode 100644 tests/wpt/web-platform-tests/css/css-position/position-absolute-center-001.tentative.html
 create mode 100644 tests/wpt/web-platform-tests/css/css-position/position-absolute-center-002.tentative.html
 create mode 100644 tests/wpt/web-platform-tests/css/motion/offset-anchor-transform-box-fill-box-003.html
 create mode 100644 tests/wpt/web-platform-tests/dom/nodes/adoption.window.js
 create mode 100644 tests/wpt/web-platform-tests/html/browsers/windows/document-domain-nested-navigate.window.js
 create mode 100644 tests/wpt/web-platform-tests/html/browsers/windows/document-domain-nested-set.window.js
 create mode 100644 tests/wpt/web-platform-tests/html/browsers/windows/document-domain-nested.window.js
 create mode 100644 tests/wpt/web-platform-tests/infrastructure/metadata/infrastructure/testdriver/actions/multiTouchPointsReleaseFirstPoint.html.ini
 create mode 100644 tests/wpt/web-platform-tests/infrastructure/metadata/infrastructure/testdriver/actions/multiTouchPointsReleaseSecondPoint.html.ini
 create mode 100644 tests/wpt/web-platform-tests/infrastructure/testdriver/actions/multiTouchPointsReleaseFirstPoint.html
 create mode 100644 tests/wpt/web-platform-tests/infrastructure/testdriver/actions/multiTouchPointsReleaseSecondPoint.html
 delete mode 100644 tests/wpt/web-platform-tests/resources/testharness.css.headers
 create mode 100644 tests/wpt/web-platform-tests/scroll-to-text-fragment/META.yml
 create mode 100644 tests/wpt/web-platform-tests/scroll-to-text-fragment/scroll-to-text-fragment-security.html
 create mode 100644 tests/wpt/web-platform-tests/scroll-to-text-fragment/stash.js
 create mode 100644 tests/wpt/web-platform-tests/scroll-to-text-fragment/stash.py
 rename tests/wpt/web-platform-tests/webxr/{ => gamepads-module}/xrInputSource_gamepad_disconnect.https.html (98%)
 rename tests/wpt/web-platform-tests/webxr/{ => gamepads-module}/xrInputSource_gamepad_input_registered.https.html (97%)
 rename tests/wpt/web-platform-tests/webxr/{ => hit-test}/xrRay_constructor.https.html (97%)
 rename tests/wpt/web-platform-tests/webxr/{ => hit-test}/xrRay_matrix.https.html (95%)

diff --git a/tests/wpt/metadata/FileAPI/url/url-in-tags-revoke.window.js.ini b/tests/wpt/metadata/FileAPI/url/url-in-tags-revoke.window.js.ini
index 76b398963ae..a9e46713244 100644
--- a/tests/wpt/metadata/FileAPI/url/url-in-tags-revoke.window.js.ini
+++ b/tests/wpt/metadata/FileAPI/url/url-in-tags-revoke.window.js.ini
@@ -7,7 +7,7 @@
     expected: FAIL
 
   [Opening a blob URL in a new window immediately before revoking it works.]
-    expected: FAIL
+    expected: TIMEOUT
 
   [Opening a blob URL in a noopener about:blank window immediately before revoking it works.]
     expected: FAIL
diff --git a/tests/wpt/metadata/MANIFEST.json b/tests/wpt/metadata/MANIFEST.json
index f8bfd8993ed..539862864b3 100644
--- a/tests/wpt/metadata/MANIFEST.json
+++ b/tests/wpt/metadata/MANIFEST.json
@@ -137617,6 +137617,54 @@
      {}
     ]
    ],
+   "css/css-paint-api/setTransform-001.https.html": [
+    [
+     "css/css-paint-api/setTransform-001.https.html",
+     [
+      [
+       "/css/css-paint-api/setTransform-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/css-paint-api/setTransform-002.https.html": [
+    [
+     "css/css-paint-api/setTransform-002.https.html",
+     [
+      [
+       "/css/css-paint-api/setTransform-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/css-paint-api/setTransform-003.https.html": [
+    [
+     "css/css-paint-api/setTransform-003.https.html",
+     [
+      [
+       "/css/css-paint-api/setTransform-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/css-paint-api/setTransform-004.https.html": [
+    [
+     "css/css-paint-api/setTransform-004.https.html",
+     [
+      [
+       "/css/css-paint-api/setTransform-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
    "css/css-paint-api/style-background-image.https.html": [
     [
      "css/css-paint-api/style-background-image.https.html",
@@ -137761,6 +137809,30 @@
      {}
     ]
    ],
+   "css/css-position/position-absolute-center-001.tentative.html": [
+    [
+     "css/css-position/position-absolute-center-001.tentative.html",
+     [
+      [
+       "/css/reference/ref-filled-green-100px-square.xht",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/css-position/position-absolute-center-002.tentative.html": [
+    [
+     "css/css-position/position-absolute-center-002.tentative.html",
+     [
+      [
+       "/css/reference/ref-filled-green-100px-square.xht",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
    "css/css-position/position-absolute-dynamic-list-marker.html": [
     [
      "css/css-position/position-absolute-dynamic-list-marker.html",
@@ -139256,10 +139328,6 @@
       [
        "/css/css-pseudo/marker-font-variant-numeric-default-ref.html",
        "=="
-      ],
-      [
-       "/css/css-pseudo/marker-font-variant-numeric-normal-ref.html",
-       "!="
       ]
      ],
      {}
@@ -139272,10 +139340,6 @@
       [
        "/css/css-pseudo/marker-font-variant-numeric-normal-ref.html",
        "=="
-      ],
-      [
-       "/css/css-pseudo/marker-font-variant-numeric-default-ref.html",
-       "!="
       ]
      ],
      {}
@@ -139324,10 +139388,6 @@
       [
        "/css/css-pseudo/marker-unicode-bidi-default-ref.html",
        "=="
-      ],
-      [
-       "/css/css-pseudo/marker-unicode-bidi-normal-ref.html",
-       "!="
       ]
      ],
      {}
@@ -139340,10 +139400,6 @@
       [
        "/css/css-pseudo/marker-unicode-bidi-normal-ref.html",
        "=="
-      ],
-      [
-       "/css/css-pseudo/marker-unicode-bidi-default-ref.html",
-       "!="
       ]
      ],
      {}
@@ -182479,6 +182535,18 @@
      {}
     ]
    ],
+   "css/motion/offset-anchor-transform-box-fill-box-003.html": [
+    [
+     "css/motion/offset-anchor-transform-box-fill-box-003.html",
+     [
+      [
+       "/css/motion/offset-anchor-transform-box-fill-box-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
    "css/motion/offset-distance-001.html": [
     [
      "css/motion/offset-distance-001.html",
@@ -212739,6 +212807,54 @@
      {}
     ]
    ],
+   "css/css-pseudo/marker-font-variant-numeric-default-ref.html": [
+    [
+     "css/css-pseudo/marker-font-variant-numeric-default-ref.html",
+     [
+      [
+       "/css/css-pseudo/marker-font-variant-numeric-normal-ref.html",
+       "!="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/css-pseudo/marker-font-variant-numeric-normal-ref.html": [
+    [
+     "css/css-pseudo/marker-font-variant-numeric-normal-ref.html",
+     [
+      [
+       "/css/css-pseudo/marker-font-variant-numeric-default-ref.html",
+       "!="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/css-pseudo/marker-unicode-bidi-default-ref.html": [
+    [
+     "css/css-pseudo/marker-unicode-bidi-default-ref.html",
+     [
+      [
+       "/css/css-pseudo/marker-unicode-bidi-normal-ref.html",
+       "!="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/css-pseudo/marker-unicode-bidi-normal-ref.html": [
+    [
+     "css/css-pseudo/marker-unicode-bidi-normal-ref.html",
+     [
+      [
+       "/css/css-pseudo/marker-unicode-bidi-default-ref.html",
+       "!="
+      ]
+     ],
+     {}
+    ]
+   ],
    "css/css-text/shaping/reference/shaping-000-ref.html": [
     [
      "css/css-text/shaping/reference/shaping-000-ref.html",
@@ -254939,6 +255055,9 @@
    "css/css-paint-api/resources/utils.js": [
     []
    ],
+   "css/css-paint-api/setTransform-ref.html": [
+    []
+   ],
    "css/css-paint-api/style-background-image-ref.html": [
     []
    ],
@@ -255188,12 +255307,6 @@
    "css/css-pseudo/marker-font-properties-ref.html": [
     []
    ],
-   "css/css-pseudo/marker-font-variant-numeric-default-ref.html": [
-    []
-   ],
-   "css/css-pseudo/marker-font-variant-numeric-normal-ref.html": [
-    []
-   ],
    "css/css-pseudo/marker-inherit-line-height-ref.html": [
     []
    ],
@@ -255203,12 +255316,6 @@
    "css/css-pseudo/marker-list-style-position-ref.html": [
     []
    ],
-   "css/css-pseudo/marker-unicode-bidi-default-ref.html": [
-    []
-   ],
-   "css/css-pseudo/marker-unicode-bidi-normal-ref.html": [
-    []
-   ],
    "css/css-pseudo/outside-marker-paint-order-ref.html": [
     []
    ],
@@ -276920,6 +277027,12 @@
    "infrastructure/metadata/infrastructure/testdriver/actions/multiTouchPoints.html.ini": [
     []
    ],
+   "infrastructure/metadata/infrastructure/testdriver/actions/multiTouchPointsReleaseFirstPoint.html.ini": [
+    []
+   ],
+   "infrastructure/metadata/infrastructure/testdriver/actions/multiTouchPointsReleaseSecondPoint.html.ini": [
+    []
+   ],
    "infrastructure/metadata/infrastructure/testdriver/actions/multiTouchPointsTwoTouchStarts.html.ini": [
     []
    ],
@@ -282410,9 +282523,6 @@
    "resources/testdriver.js.headers": [
     []
    ],
-   "resources/testharness.css.headers": [
-    []
-   ],
    "resources/testharness.js": [
     []
    ],
@@ -282455,9 +282565,18 @@
    "scroll-animations/resources/scrolltimeline-utils.js": [
     []
    ],
+   "scroll-to-text-fragment/META.yml": [
+    []
+   ],
    "scroll-to-text-fragment/scroll-to-text-fragment-target.html": [
     []
    ],
+   "scroll-to-text-fragment/stash.js": [
+    []
+   ],
+   "scroll-to-text-fragment/stash.py": [
+    []
+   ],
    "secure-contexts/META.yml": [
     []
    ],
@@ -331808,7 +331927,9 @@
    "css/css-typed-om/idlharness.html": [
     [
      "css/css-typed-om/idlharness.html",
-     {}
+     {
+      "timeout": "long"
+     }
     ]
    ],
    "css/css-typed-om/set-var-reference-crash.html": [
@@ -339784,6 +339905,12 @@
      {}
     ]
    ],
+   "dom/nodes/adoption.window.js": [
+    [
+     "dom/nodes/adoption.window.html",
+     {}
+    ]
+   ],
    "dom/nodes/append-on-Document.html": [
     [
      "dom/nodes/append-on-Document.html",
@@ -358035,6 +358162,24 @@
      {}
     ]
    ],
+   "html/browsers/windows/document-domain-nested-navigate.window.js": [
+    [
+     "html/browsers/windows/document-domain-nested-navigate.window.html",
+     {}
+    ]
+   ],
+   "html/browsers/windows/document-domain-nested-set.window.js": [
+    [
+     "html/browsers/windows/document-domain-nested-set.window.html",
+     {}
+    ]
+   ],
+   "html/browsers/windows/document-domain-nested.window.js": [
+    [
+     "html/browsers/windows/document-domain-nested.window.html",
+     {}
+    ]
+   ],
    "html/browsers/windows/embedded-opener-a-form.html": [
     [
      "html/browsers/windows/embedded-opener-a-form.html",
@@ -371699,6 +371844,22 @@
      }
     ]
    ],
+   "infrastructure/testdriver/actions/multiTouchPointsReleaseFirstPoint.html": [
+    [
+     "infrastructure/testdriver/actions/multiTouchPointsReleaseFirstPoint.html",
+     {
+      "testdriver": true
+     }
+    ]
+   ],
+   "infrastructure/testdriver/actions/multiTouchPointsReleaseSecondPoint.html": [
+    [
+     "infrastructure/testdriver/actions/multiTouchPointsReleaseSecondPoint.html",
+     {
+      "testdriver": true
+     }
+    ]
+   ],
    "infrastructure/testdriver/actions/multiTouchPointsTwoTouchStarts.html": [
     [
      "infrastructure/testdriver/actions/multiTouchPointsTwoTouchStarts.html",
@@ -406291,6 +406452,14 @@
      }
     ]
    ],
+   "scroll-to-text-fragment/scroll-to-text-fragment-security.html": [
+    [
+     "scroll-to-text-fragment/scroll-to-text-fragment-security.html",
+     {
+      "testdriver": true
+     }
+    ]
+   ],
    "scroll-to-text-fragment/scroll-to-text-fragment.html": [
     [
      "scroll-to-text-fragment/scroll-to-text-fragment.html",
@@ -435110,6 +435279,18 @@
      }
     ]
    ],
+   "webxr/gamepads-module/xrInputSource_gamepad_disconnect.https.html": [
+    [
+     "webxr/gamepads-module/xrInputSource_gamepad_disconnect.https.html",
+     {}
+    ]
+   ],
+   "webxr/gamepads-module/xrInputSource_gamepad_input_registered.https.html": [
+    [
+     "webxr/gamepads-module/xrInputSource_gamepad_input_registered.https.html",
+     {}
+    ]
+   ],
    "webxr/getInputPose_handedness.https.html": [
     [
      "webxr/getInputPose_handedness.https.html",
@@ -435128,6 +435309,18 @@
      {}
     ]
    ],
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   "streams/piping/general.any.js": [
-   "250ebc3ece8c7b2d2c9525cd503d79cc89b90d9b",
+   "2b385c2591684412c739145b5bb3e77ec4370b23",
    "testharness"
   ],
   "streams/piping/multiple-propagation.any.js": [
@@ -701639,7 +701884,7 @@
    "testharness"
   ],
   "streams/piping/pipe-through.any.js": [
-   "868899c72665802f8083d367955a021321c2a3be",
+   "92d1394ca2f0ab75375b10bf50f2d45b195deeff",
    "testharness"
   ],
   "streams/piping/then-interception.any.js": [
@@ -706959,7 +707204,7 @@
    "support"
   ],
   "tools/ci/azure/affected_tests.yml": [
-   "8076bc386986ed48a7af50fd48a59a544bf8c3bc",
+   "7811ba95917bb3cc6b5d32ecbe9e89529761adc3",
    "support"
   ],
   "tools/ci/azure/checkout.yml": [
@@ -707079,7 +707324,7 @@
    "support"
   ],
   "tools/ci/taskcluster-run.py": [
-   "8a60012d09b4d5be9845cf4ab74e5f87bf4b58ce",
+   "ac5abc12b1f17d2fc93c6ac5636bfd6fe7cafa04",
    "support"
   ],
   "tools/ci/tc/README.md": [
@@ -707103,7 +707348,7 @@
    "support"
   ],
   "tools/ci/tc/tasks/test.yml": [
-   "6e5e1b5070adc14c0c90498b82e5fecaae4f6c1e",
+   "767b558e5a2308d3017f04466460b9046a9a39cd",
    "support"
   ],
   "tools/ci/tc/testdata/epochs_daily_push_event.json": [
@@ -707155,7 +707400,7 @@
    "support"
   ],
   "tools/docker/Dockerfile": [
-   "3d41834cfb41430b4a9aa05fa8c6d6b6f2010b51",
+   "0a842de1ab857d1f655b9365df61f3fa978e31be",
    "support"
   ],
   "tools/docker/README.md": [
@@ -707219,11 +707464,11 @@
    "support"
   ],
   "tools/lint/lint.py": [
-   "c7c0197213c4660d05a3d868edd87bd907430f6b",
+   "17fb988834a01a1b1cd22394df19b8d335704813",
    "support"
   ],
   "tools/lint/rules.py": [
-   "587028d6c5f927781c2e7238aad15c875bd39d1c",
+   "b3d125f8dd63c04df149cea07681a45e1cc2044a",
    "support"
   ],
   "tools/lint/tests/__init__.py": [
@@ -707363,7 +707608,7 @@
    "support"
   ],
   "tools/lint/tests/test_file_lints.py": [
-   "8094d6d40a54602477a05246faf9ebc0734cb95e",
+   "08c09b6b0950b2cf548c3b5e415303597dd8c654",
    "support"
   ],
   "tools/lint/tests/test_lint.py": [
@@ -712279,7 +712524,7 @@
    "support"
   ],
   "tools/wptrunner/wptrunner/browsers/servo.py": [
-   "d3ed4b3fb1d464ecb012a68323dde7c942db14e1",
+   "bb1f172cd5e69ff17e649f0f12a796919191fb9b",
    "support"
   ],
   "tools/wptrunner/wptrunner/browsers/servodriver.py": [
@@ -712307,7 +712552,7 @@
    "support"
   ],
   "tools/wptrunner/wptrunner/executors/base.py": [
-   "9e302107118fd42fb84765fb16d87ecbf0270c5a",
+   "9741f764540a409d081a294bd93c3027842a856c",
    "support"
   ],
   "tools/wptrunner/wptrunner/executors/executorchrome.py": [
@@ -712327,7 +712572,7 @@
    "support"
   ],
   "tools/wptrunner/wptrunner/executors/executormarionette.py": [
-   "b165e8cd93d534062f303aa3e045cbb9850ed25c",
+   "2f38e0168a4cdd1003d41a002ce6b5893c03ba31",
    "support"
   ],
   "tools/wptrunner/wptrunner/executors/executoropera.py": [
@@ -712351,7 +712596,7 @@
    "support"
   ],
   "tools/wptrunner/wptrunner/executors/executorwebdriver.py": [
-   "221f48a3ea9cb8cf37a687203bce94af5a8b0f2a",
+   "fa5cfa3c1c5e313591d1392d2a89ca33ce301ad2",
    "support"
   ],
   "tools/wptrunner/wptrunner/executors/executorwebkit.py": [
@@ -712451,7 +712696,7 @@
    "support"
   ],
   "tools/wptrunner/wptrunner/testdriver-extra.js": [
-   "745421f59bb5eb309633a3c3f482e5d0dcf86730",
+   "5001b004f2e199d864810e316ab8e3a80044a50f",
    "support"
   ],
   "tools/wptrunner/wptrunner/testdriver-vendor.js": [
@@ -712479,11 +712724,11 @@
    "support"
   ],
   "tools/wptrunner/wptrunner/testrunner.py": [
-   "f1b1faa4498ca61483159acd690f458b5ba32fbe",
+   "7b6bf57d159929cdca87e9ca321610401b37166a",
    "support"
   ],
   "tools/wptrunner/wptrunner/tests/__init__.py": [
-   "e69de29bb2d1d6434b8b29ae775ad8c2e48c5391",
+   "fbde873198f812bed450fb6dc273c0675238b70c",
    "support"
   ],
   "tools/wptrunner/wptrunner/tests/base.py": [
@@ -712639,7 +712884,7 @@
    "support"
   ],
   "tools/wptrunner/wptrunner/wpttest.py": [
-   "19e839d21bcc8fc400bbf2ad9289f0359bfa2f1d",
+   "588920989673b36e9a5da7c3dbf87a18985fd736",
    "support"
   ],
   "tools/wptserve/.gitignore": [
@@ -713183,7 +713428,7 @@
    "testharness"
   ],
   "trusted-types/block-string-assignment-to-Element-setAttribute.tentative.html": [
-   "1d6f3f6fe62afb4d76ecc4e3ea73c7d1136e9550",
+   "2639e16ea084063d90c7d176a576f2e77a4293d7",
    "testharness"
   ],
   "trusted-types/block-string-assignment-to-Element-setAttributeNS.tentative.html": [
@@ -713283,7 +713528,7 @@
    "support"
   ],
   "trusted-types/trusted-types-createHTMLDocument.tentative.html": [
-   "df094a8d5bcd8d22ca57c23ab132aa1bec51594a",
+   "6ab5f42d5ffd82ccc3bf5c9ea8916c2b2f810987",
    "testharness"
   ],
   "trusted-types/trusted-types-duplicate-names-list-report-only.tentative.html": [
@@ -713299,7 +713544,7 @@
    "testharness"
   ],
   "trusted-types/trusted-types-duplicate-names.tentative.html": [
-   "e780a3d26ad6363e99316ead0d9663c9c4a613a7",
+   "fb808246ac8aa093938a6ce85f8b5fb3675da357",
    "testharness"
   ],
   "trusted-types/trusted-types-eval-reporting-no-unsafe-eval.tentative.https.html": [
@@ -720935,7 +721180,7 @@
    "wdspec"
   ],
   "webdriver/tests/new_session/default_values.py": [
-   "61816812eb1e79e4cc96190e09e597a878bdebee",
+   "abd4a5a64c510ee90ef9f52660581a097873e96c",
    "wdspec"
   ],
   "webdriver/tests/new_session/invalid_capabilities.py": [
@@ -722459,7 +722704,7 @@
    "testharness"
   ],
   "webrtc/RTCPeerConnection-setRemoteDescription-rollback.html": [
-   "342e325dad2af804c659891d7a05f00933b487a7",
+   "0312dc415b04e329eab1d502dbb55fe32a2c081f",
    "testharness"
   ],
   "webrtc/RTCPeerConnection-setRemoteDescription-tracks.https.html": [
@@ -727394,6 +727639,14 @@
    "4509c67a847109f2fdaed5be49c87777e1927a12",
    "testharness"
   ],
+  "webxr/gamepads-module/xrInputSource_gamepad_disconnect.https.html": [
+   "7b8ff4a59c8e503d4f31fe33f9fa1dee6af10003",
+   "testharness"
+  ],
+  "webxr/gamepads-module/xrInputSource_gamepad_input_registered.https.html": [
+   "038e28dcffbd507105da57fb1ced055ea83896c0",
+   "testharness"
+  ],
   "webxr/getInputPose_handedness.https.html": [
    "5a310c6dd77274631d0ef9e751c6f195def9c3d3",
    "testharness"
@@ -727406,6 +727659,14 @@
    "201a9b72208fae4f64ded8082b7ba11000517313",
    "testharness"
   ],
+  "webxr/hit-test/xrRay_constructor.https.html": [
+   "08f20142e38e9366bd016fb92666b5136128fef6",
+   "testharness"
+  ],
+  "webxr/hit-test/xrRay_matrix.https.html": [
+   "77f134a75fffe85705e867cd47cb1c5034df59b3",
+   "testharness"
+  ],
   "webxr/idlharness.https.window.js": [
    "3e54e367787cb95dada398790fe23b10174df29f",
    "testharness"
@@ -727534,14 +727795,6 @@
    "7b0fda4508748c81a0865d137847fd7f13a3ff97",
    "testharness"
   ],
-  "webxr/xrInputSource_gamepad_disconnect.https.html": [
-   "66faf8699640fe3cef81a84d1f290988c35c3e14",
-   "testharness"
-  ],
-  "webxr/xrInputSource_gamepad_input_registered.https.html": [
-   "cb1ce7780b42eec33f6732efad8619755e899e06",
-   "testharness"
-  ],
   "webxr/xrInputSource_profiles.https.html": [
    "32073c631f8ecfc3b19c33ed03e6b9999553cfec",
    "testharness"
@@ -727554,14 +727807,6 @@
    "79eed4cdec4663b3a0a401aff80126e4dad767f9",
    "testharness"
   ],
-  "webxr/xrRay_constructor.https.html": [
-   "b955db4509c2f60facee570e6011a1441297e3dd",
-   "testharness"
-  ],
-  "webxr/xrRay_matrix.https.html": [
-   "83a1050d6b169d28ad6b9d4417f06895e53bcfc6",
-   "testharness"
-  ],
   "webxr/xrReferenceSpace_originOffset.https.html": [
    "e7fe576cb2013647c18111c7fc2d74afdd7ee04d",
    "testharness"
diff --git a/tests/wpt/metadata/css/css-transitions/no-transition-from-ua-to-blocking-stylesheet.html.ini b/tests/wpt/metadata/css/css-transitions/no-transition-from-ua-to-blocking-stylesheet.html.ini
index e35a452a186..70a00a101f6 100644
--- a/tests/wpt/metadata/css/css-transitions/no-transition-from-ua-to-blocking-stylesheet.html.ini
+++ b/tests/wpt/metadata/css/css-transitions/no-transition-from-ua-to-blocking-stylesheet.html.ini
@@ -1,2 +1,2 @@
 [no-transition-from-ua-to-blocking-stylesheet.html]
-  expected: TIMEOUT
+  expected: FAIL
diff --git a/tests/wpt/metadata/css/cssom-view/MediaQueryList-extends-EventTarget.html.ini b/tests/wpt/metadata/css/cssom-view/MediaQueryList-extends-EventTarget.html.ini
new file mode 100644
index 00000000000..32733753964
--- /dev/null
+++ b/tests/wpt/metadata/css/cssom-view/MediaQueryList-extends-EventTarget.html.ini
@@ -0,0 +1,8 @@
+[MediaQueryList-extends-EventTarget.html]
+  expected: TIMEOUT
+  [removeEventListener removes listener]
+    expected: NOTRUN
+
+  [addEventListener "once" option is respected]
+    expected: TIMEOUT
+
diff --git a/tests/wpt/metadata/custom-elements/adopted-callback.html.ini b/tests/wpt/metadata/custom-elements/adopted-callback.html.ini
index e35f704acf0..f16affb4ef7 100644
--- a/tests/wpt/metadata/custom-elements/adopted-callback.html.ini
+++ b/tests/wpt/metadata/custom-elements/adopted-callback.html.ini
@@ -84,3 +84,45 @@
   [Inserting a custom element into a detached shadow tree that belongs to an HTML document fetched by XHR must enqueue and invoke adoptedCallback]
     expected: FAIL
 
+  [Moving the <template>'s content of a custom element from the owner document into the document of the template elements must enqueue and invoke adoptedCallback]
+    expected: FAIL
+
+  [Moving the <template>'s content of a custom element from the owner document into an HTML document fetched by XHR must enqueue and invoke adoptedCallback]
+    expected: FAIL
+
+  [Moving the <template>'s content of a custom element from the owner document into the document of an iframe must enqueue and invoke adoptedCallback]
+    expected: FAIL
+
+  [Moving the shadow host's shadow of a custom element from the owner document into a cloned document must enqueue and invoke adoptedCallback]
+    expected: FAIL
+
+  [Moving the shadow host's shadow of a custom element from the owner document into an HTML document fetched by XHR must enqueue and invoke adoptedCallback]
+    expected: FAIL
+
+  [Moving the shadow host's shadow of a custom element from the owner document into a document created by createHTMLDocument must enqueue and invoke adoptedCallback]
+    expected: FAIL
+
+  [Moving the <template>'s content of a custom element from the owner document into a new document must enqueue and invoke adoptedCallback]
+    expected: FAIL
+
+  [Moving the shadow host's shadow of a custom element from the owner document into an HTML document created by createDocument must enqueue and invoke adoptedCallback]
+    expected: FAIL
+
+  [Moving the <template>'s content of a custom element from the owner document into a cloned document must enqueue and invoke adoptedCallback]
+    expected: FAIL
+
+  [Moving the <template>'s content of a custom element from the owner document into a document created by createHTMLDocument must enqueue and invoke adoptedCallback]
+    expected: FAIL
+
+  [Moving the shadow host's shadow of a custom element from the owner document into the document of the template elements must enqueue and invoke adoptedCallback]
+    expected: FAIL
+
+  [Moving the shadow host's shadow of a custom element from the owner document into the document of an iframe must enqueue and invoke adoptedCallback]
+    expected: FAIL
+
+  [Moving the shadow host's shadow of a custom element from the owner document into a new document must enqueue and invoke adoptedCallback]
+    expected: FAIL
+
+  [Moving the <template>'s content of a custom element from the owner document into an HTML document created by createDocument must enqueue and invoke adoptedCallback]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/dom/nodes/adoption.window.js.ini b/tests/wpt/metadata/dom/nodes/adoption.window.js.ini
new file mode 100644
index 00000000000..a2935ab89e2
--- /dev/null
+++ b/tests/wpt/metadata/dom/nodes/adoption.window.js.ini
@@ -0,0 +1,16 @@
+[adoption.window.html]
+  [appendChild() and DocumentFragment]
+    expected: FAIL
+
+  [appendChild() and ShadowRoot]
+    expected: FAIL
+
+  [adoptNode() and ShadowRoot]
+    expected: FAIL
+
+  [adoptNode() and DocumentFragment with host]
+    expected: FAIL
+
+  [appendChild() and DocumentFragment with host]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/fetch/api/redirect/redirect-method.any.js.ini b/tests/wpt/metadata/fetch/api/redirect/redirect-method.any.js.ini
index 4590ccc2583..0b6787710cf 100644
--- a/tests/wpt/metadata/fetch/api/redirect/redirect-method.any.js.ini
+++ b/tests/wpt/metadata/fetch/api/redirect/redirect-method.any.js.ini
@@ -38,6 +38,9 @@
   [Redirect 307 with HEAD]
     expected: FAIL
 
+  [Redirect 303 with TESTING]
+    expected: FAIL
+
 
 [redirect-method.any.html]
   [Redirect 301 with GET]
@@ -79,3 +82,6 @@
   [Redirect 307 with HEAD]
     expected: FAIL
 
+  [Redirect 303 with TESTING]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/fetch/content-type/response.window.js.ini b/tests/wpt/metadata/fetch/content-type/response.window.js.ini
index 7f5bd9d3587..ae34575a9d9 100644
--- a/tests/wpt/metadata/fetch/content-type/response.window.js.ini
+++ b/tests/wpt/metadata/fetch/content-type/response.window.js.ini
@@ -309,3 +309,24 @@
   [<iframe>: separate response Content-Type: */* text/html]
     expected: FAIL
 
+  [<iframe>: combined response Content-Type: */* text/html]
+    expected: FAIL
+
+  [<iframe>: separate response Content-Type: text/html;" text/plain]
+    expected: FAIL
+
+  [<iframe>: separate response Content-Type: text/html */*;charset=gbk]
+    expected: FAIL
+
+  [<iframe>: separate response Content-Type: text/html */*]
+    expected: FAIL
+
+  [<iframe>: separate response Content-Type: text/html;" \\" text/plain]
+    expected: FAIL
+
+  [<iframe>: combined response Content-Type: text/html;x=" text/plain]
+    expected: FAIL
+
+  [<iframe>: separate response Content-Type: text/plain */*;charset=gbk]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini b/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini
index 87c807a49ff..d4ba399b762 100644
--- a/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini
+++ b/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini
@@ -11,3 +11,6 @@
   [X-Content-Type-Options%3A%20nosniff%0C]
     expected: FAIL
 
+  [X-Content-Type-Options%3A%20'NosniFF']
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/fetch/security/embedded-credentials.tentative.sub.html.ini b/tests/wpt/metadata/fetch/security/embedded-credentials.tentative.sub.html.ini
index 80ebd73cb00..d912a65f7a5 100644
--- a/tests/wpt/metadata/fetch/security/embedded-credentials.tentative.sub.html.ini
+++ b/tests/wpt/metadata/fetch/security/embedded-credentials.tentative.sub.html.ini
@@ -11,7 +11,7 @@
     expected: TIMEOUT
 
   [Embedded credentials matching the top-level are treated as network errors for cross-origin URLs.]
-    expected: TIMEOUT
+    expected: FAIL
 
   [Embedded credentials matching the top-level are not treated as network errors for same-origin URLs.]
     expected: TIMEOUT
diff --git a/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_1.html.ini b/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_1.html.ini
deleted file mode 100644
index 87b07c3e670..00000000000
--- a/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_1.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[traverse_the_history_1.html]
-  [Multiple history traversals from the same task]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_5.html.ini b/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_5.html.ini
new file mode 100644
index 00000000000..dc2e45516de
--- /dev/null
+++ b/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_5.html.ini
@@ -0,0 +1,4 @@
+[traverse_the_history_5.html]
+  [Multiple history traversals, last would be aborted]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/html/browsers/windows/document-domain-nested-navigate.window.js.ini b/tests/wpt/metadata/html/browsers/windows/document-domain-nested-navigate.window.js.ini
new file mode 100644
index 00000000000..afdffee412d
--- /dev/null
+++ b/tests/wpt/metadata/html/browsers/windows/document-domain-nested-navigate.window.js.ini
@@ -0,0 +1,4 @@
+[document-domain-nested-navigate.window.html]
+  [Navigated frame to about:blank and document.domain]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/html/interaction/focus/the-autofocus-attribute/supported-elements.html.ini b/tests/wpt/metadata/html/interaction/focus/the-autofocus-attribute/supported-elements.html.ini
index 6b68e9094e4..d1ca01ebc5f 100644
--- a/tests/wpt/metadata/html/interaction/focus/the-autofocus-attribute/supported-elements.html.ini
+++ b/tests/wpt/metadata/html/interaction/focus/the-autofocus-attribute/supported-elements.html.ini
@@ -1,4 +1,5 @@
 [supported-elements.html]
+  expected: TIMEOUT
   [Contenteditable element should support autofocus]
     expected: FAIL
 
@@ -9,7 +10,7 @@
     expected: FAIL
 
   [Area element should support autofocus]
-    expected: FAIL
+    expected: TIMEOUT
 
   [Host element with delegatesFocus should support autofocus]
     expected: FAIL
diff --git a/tests/wpt/metadata/html/semantics/document-metadata/the-style-element/mutations.window.js.ini b/tests/wpt/metadata/html/semantics/document-metadata/the-style-element/mutations.window.js.ini
index 909fb978d2a..db2277f7a8a 100644
--- a/tests/wpt/metadata/html/semantics/document-metadata/the-style-element/mutations.window.js.ini
+++ b/tests/wpt/metadata/html/semantics/document-metadata/the-style-element/mutations.window.js.ini
@@ -2,3 +2,6 @@
   [Mutating the style element: mutating a Comment node]
     expected: FAIL
 
+  [Mutating the style element: inserting an empty DocumentFragment node]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-3.html.ini b/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-3.html.ini
index 5f60c78e73c..f6a7aca3306 100644
--- a/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-3.html.ini
+++ b/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-3.html.ini
@@ -1,6 +1,5 @@
 [iframe_sandbox_popups_escaping-3.html]
   type: testharness
-  expected: TIMEOUT
   [Check that popups from a sandboxed iframe escape the sandbox if\n       allow-popups-to-escape-sandbox is used]
-    expected: TIMEOUT
+    expected: FAIL
 
diff --git a/tests/wpt/metadata/html/semantics/forms/constraints/form-validation-validity-stepMismatch.html.ini b/tests/wpt/metadata/html/semantics/forms/constraints/form-validation-validity-stepMismatch.html.ini
index 018bd5786f4..292b4609ff1 100644
--- a/tests/wpt/metadata/html/semantics/forms/constraints/form-validation-validity-stepMismatch.html.ini
+++ b/tests/wpt/metadata/html/semantics/forms/constraints/form-validation-validity-stepMismatch.html.ini
@@ -90,3 +90,12 @@
   [[INPUT in NUMBER status\] The value attribute is empty string]
     expected: FAIL
 
+  [[INPUT in NUMBER status\] Step mismatch when step is a very small floating number and value is not its integral multiple]
+    expected: FAIL
+
+  [[INPUT in NUMBER status\] No step mismatch when step is a floating number in exponent format and value is its integral multiple]
+    expected: FAIL
+
+  [[INPUT in NUMBER status\] No step mismatch when step is a floating number and value is its integral multiple]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/html/semantics/links/links-created-by-a-and-area-elements/htmlanchorelement_noopener.html.ini b/tests/wpt/metadata/html/semantics/links/links-created-by-a-and-area-elements/htmlanchorelement_noopener.html.ini
index 7b498d66315..65424f7891a 100644
--- a/tests/wpt/metadata/html/semantics/links/links-created-by-a-and-area-elements/htmlanchorelement_noopener.html.ini
+++ b/tests/wpt/metadata/html/semantics/links/links-created-by-a-and-area-elements/htmlanchorelement_noopener.html.ini
@@ -8,7 +8,7 @@
     expected: FAIL
 
   [Check that rel=noopener with target=_top does a normal load]
-    expected: TIMEOUT
+    expected: FAIL
 
   [Check that targeting of rel=noopener with a given name reuses an existing window with that name]
     expected: NOTRUN
diff --git a/tests/wpt/metadata/resource-timing/crossorigin-sandwich-TAO.sub.html.ini b/tests/wpt/metadata/resource-timing/crossorigin-sandwich-TAO.sub.html.ini
index 1c7ec9ce1db..b4090ef9fe2 100644
--- a/tests/wpt/metadata/resource-timing/crossorigin-sandwich-TAO.sub.html.ini
+++ b/tests/wpt/metadata/resource-timing/crossorigin-sandwich-TAO.sub.html.ini
@@ -1,4 +1,5 @@
 [crossorigin-sandwich-TAO.sub.html]
+  expected: ERROR
   [There should be one entry.]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/webmessaging/with-ports/018.html.ini b/tests/wpt/metadata/webmessaging/with-ports/018.html.ini
deleted file mode 100644
index 663a1f8fa30..00000000000
--- a/tests/wpt/metadata/webmessaging/with-ports/018.html.ini
+++ /dev/null
@@ -1,5 +0,0 @@
-[018.html]
-  expected: TIMEOUT
-  [origin of the script that invoked the method, javascript:]
-    expected: TIMEOUT
-
diff --git a/tests/wpt/metadata/webmessaging/without-ports/017.html.ini b/tests/wpt/metadata/webmessaging/without-ports/017.html.ini
new file mode 100644
index 00000000000..064cf47545b
--- /dev/null
+++ b/tests/wpt/metadata/webmessaging/without-ports/017.html.ini
@@ -0,0 +1,5 @@
+[017.html]
+  expected: TIMEOUT
+  [origin of the script that invoked the method, about:blank]
+    expected: TIMEOUT
+
diff --git a/tests/wpt/metadata/webmessaging/without-ports/018.html.ini b/tests/wpt/metadata/webmessaging/without-ports/018.html.ini
deleted file mode 100644
index 663a1f8fa30..00000000000
--- a/tests/wpt/metadata/webmessaging/without-ports/018.html.ini
+++ /dev/null
@@ -1,5 +0,0 @@
-[018.html]
-  expected: TIMEOUT
-  [origin of the script that invoked the method, javascript:]
-    expected: TIMEOUT
-
diff --git a/tests/wpt/metadata/webxr/xrInputSource_gamepad_disconnect.https.html.ini b/tests/wpt/metadata/webxr/gamepads-module/xrInputSource_gamepad_disconnect.https.html.ini
similarity index 100%
rename from tests/wpt/metadata/webxr/xrInputSource_gamepad_disconnect.https.html.ini
rename to tests/wpt/metadata/webxr/gamepads-module/xrInputSource_gamepad_disconnect.https.html.ini
diff --git a/tests/wpt/metadata/webxr/xrInputSource_gamepad_input_registered.https.html.ini b/tests/wpt/metadata/webxr/gamepads-module/xrInputSource_gamepad_input_registered.https.html.ini
similarity index 100%
rename from tests/wpt/metadata/webxr/xrInputSource_gamepad_input_registered.https.html.ini
rename to tests/wpt/metadata/webxr/gamepads-module/xrInputSource_gamepad_input_registered.https.html.ini
diff --git a/tests/wpt/metadata/webxr/xrRay_constructor.https.html.ini b/tests/wpt/metadata/webxr/hit-test/xrRay_constructor.https.html.ini
similarity index 100%
rename from tests/wpt/metadata/webxr/xrRay_constructor.https.html.ini
rename to tests/wpt/metadata/webxr/hit-test/xrRay_constructor.https.html.ini
diff --git a/tests/wpt/metadata/webxr/xrRay_matrix.https.html.ini b/tests/wpt/metadata/webxr/hit-test/xrRay_matrix.https.html.ini
similarity index 100%
rename from tests/wpt/metadata/webxr/xrRay_matrix.https.html.ini
rename to tests/wpt/metadata/webxr/hit-test/xrRay_matrix.https.html.ini
diff --git a/tests/wpt/web-platform-tests/.azure-pipelines.yml b/tests/wpt/web-platform-tests/.azure-pipelines.yml
index a534278337d..5e46b35f058 100644
--- a/tests/wpt/web-platform-tests/.azure-pipelines.yml
+++ b/tests/wpt/web-platform-tests/.azure-pipelines.yml
@@ -362,7 +362,6 @@ jobs:
   - template: tools/ci/azure/pip_install.yml
     parameters:
       packages: virtualenv
-  - template: tools/ci/azure/install_fonts.yml
   - template: tools/ci/azure/install_certs.yml
   - template: tools/ci/azure/install_safari.yml
   - template: tools/ci/azure/update_hosts.yml
diff --git a/tests/wpt/web-platform-tests/css/css-paint-api/setTransform-001.https.html b/tests/wpt/web-platform-tests/css/css-paint-api/setTransform-001.https.html
new file mode 100644
index 00000000000..9913d3ba6c0
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-paint-api/setTransform-001.https.html
@@ -0,0 +1,38 @@
+<!DOCTYPE html>
+<title>setTransform with DOMMatrix behaves correctly</title>
+<html class="reftest-wait">
+<link rel="help" href="https://drafts.css-houdini.org/css-paint-api/">
+<link rel="match" href="setTransform-ref.html">
+<style>
+.container {
+  width: 200px;
+  height: 200px;
+}
+
+#foo {
+  background: paint(foo);
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<script src="/common/worklet-reftest.js"></script>
+<body>
+<div id="foo" class="container"></div>
+
+<script id="code" type="text/worklet">
+registerPaint('foo', class {
+    paint(ctx, geom) {
+        ctx.fillStyle = 'green';
+        let m = ctx.getTransform();
+        m.a = 2;
+        m.d = 2;
+        ctx.setTransform(m);
+        ctx.fillRect(0, 0, 50, 50);
+    }
+});
+</script>
+
+<script>
+    importWorkletAndTerminateTestAfterAsyncPaint(CSS.paintWorklet, document.getElementById('code').textContent);
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-paint-api/setTransform-002.https.html b/tests/wpt/web-platform-tests/css/css-paint-api/setTransform-002.https.html
new file mode 100644
index 00000000000..779ebcac7e9
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-paint-api/setTransform-002.https.html
@@ -0,0 +1,35 @@
+<!DOCTYPE html>
+<title>setTransform with DOMMatrix behaves correctly</title>
+<html class="reftest-wait">
+<link rel="help" href="https://drafts.css-houdini.org/css-paint-api/">
+<link rel="match" href="setTransform-ref.html">
+<style>
+.container {
+  width: 200px;
+  height: 200px;
+}
+
+#foo {
+  background: paint(foo);
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<script src="/common/worklet-reftest.js"></script>
+<body>
+<div id="foo" class="container"></div>
+
+<script id="code" type="text/worklet">
+registerPaint('foo', class {
+    paint(ctx, geom) {
+        ctx.fillStyle = 'green';
+        ctx.setTransform({a: 2, d: 2});
+        ctx.fillRect(0, 0, 50, 50);
+    }
+});
+</script>
+
+<script>
+    importWorkletAndTerminateTestAfterAsyncPaint(CSS.paintWorklet, document.getElementById('code').textContent);
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-paint-api/setTransform-003.https.html b/tests/wpt/web-platform-tests/css/css-paint-api/setTransform-003.https.html
new file mode 100644
index 00000000000..cbdb525eca2
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-paint-api/setTransform-003.https.html
@@ -0,0 +1,36 @@
+<!DOCTYPE html>
+<title>setTransform with NaN should be ignored</title>
+<html class="reftest-wait">
+<link rel="help" href="https://drafts.css-houdini.org/css-paint-api/">
+<link rel="match" href="setTransform-ref.html">
+<style>
+.container {
+  width: 200px;
+  height: 200px;
+}
+
+#foo {
+  background: paint(foo);
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<script src="/common/worklet-reftest.js"></script>
+<body>
+<div id="foo" class="container"></div>
+
+<script id="code" type="text/worklet">
+registerPaint('foo', class {
+    paint(ctx, geom) {
+        ctx.fillStyle = 'green';
+        // Set to a NaN should be ignored.
+        ctx.setTransform({a: NaN, d:2});
+        ctx.fillRect(0, 0, 100, 100);
+    }
+});
+</script>
+
+<script>
+    importWorkletAndTerminateTestAfterAsyncPaint(CSS.paintWorklet, document.getElementById('code').textContent);
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-paint-api/setTransform-004.https.html b/tests/wpt/web-platform-tests/css/css-paint-api/setTransform-004.https.html
new file mode 100644
index 00000000000..38a71677ad9
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-paint-api/setTransform-004.https.html
@@ -0,0 +1,36 @@
+<!DOCTYPE html>
+<title>setTransform with Infinity should be ignored</title>
+<html class="reftest-wait">
+<link rel="help" href="https://drafts.css-houdini.org/css-paint-api/">
+<link rel="match" href="setTransform-ref.html">
+<style>
+.container {
+  width: 200px;
+  height: 200px;
+}
+
+#foo {
+  background: paint(foo);
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<script src="/common/worklet-reftest.js"></script>
+<body>
+<div id="foo" class="container"></div>
+
+<script id="code" type="text/worklet">
+registerPaint('foo', class {
+    paint(ctx, geom) {
+        ctx.fillStyle = 'green';
+        // Set to Infinity should be ignored.
+        ctx.setTransform({a: Infinity, d:2});
+        ctx.fillRect(0, 0, 100, 100);
+    }
+});
+</script>
+
+<script>
+    importWorkletAndTerminateTestAfterAsyncPaint(CSS.paintWorklet, document.getElementById('code').textContent);
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-paint-api/setTransform-ref.html b/tests/wpt/web-platform-tests/css/css-paint-api/setTransform-ref.html
new file mode 100644
index 00000000000..e969ba034a2
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-paint-api/setTransform-ref.html
@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<html>
+<body>
+<canvas id ="canvas" width="200" height="200"></canvas>
+<script>
+var ctx = document.getElementById('canvas').getContext('2d');
+ctx.fillStyle = 'green';
+let m = ctx.getTransform();
+m.a = 2;
+m.d = 2;
+ctx.setTransform(m);
+ctx.fillRect(0, 0, 50, 50);
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-position/position-absolute-center-001.tentative.html b/tests/wpt/web-platform-tests/css/css-position/position-absolute-center-001.tentative.html
new file mode 100644
index 00000000000..1baf1d7827d
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-position/position-absolute-center-001.tentative.html
@@ -0,0 +1,37 @@
+<!DOCTYPE html>
+<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/1432">
+<link rel="match" href="../reference/ref-filled-green-100px-square.xht">
+<style>
+#containing-block {
+  position: relative;
+  width: 100px;
+  height: 100px;
+  background: red;
+  display: flex;
+}
+
+#containing-block > div {
+  flex-grow: 1;
+}
+
+#inner-flex {
+  display: flex;
+  justify-content: center;
+}
+
+span {
+  display: inline-block;
+  inline-size: 50px;
+  block-size: 10px;
+}
+</style>
+<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+<div id="containing-block" style="flex-direction: row;">
+  <div id="inner-flex" style="margin: 10px; height: 100px;">
+    <div style="position: absolute; top: 0; height: 100px; background: green;">
+      <span></span>
+      <span></span>
+    </div>
+  </div>
+  <div style="height: 100px; background: green;"></div>
+</div>
diff --git a/tests/wpt/web-platform-tests/css/css-position/position-absolute-center-002.tentative.html b/tests/wpt/web-platform-tests/css/css-position/position-absolute-center-002.tentative.html
new file mode 100644
index 00000000000..2de625f3925
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-position/position-absolute-center-002.tentative.html
@@ -0,0 +1,37 @@
+<!DOCTYPE html>
+<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/1432">
+<link rel="match" href="../reference/ref-filled-green-100px-square.xht">
+<style>
+#containing-block {
+  position: relative;
+  width: 100px;
+  height: 100px;
+  background: red;
+  display: flex;
+}
+
+#containing-block > div {
+  flex-grow: 1;
+}
+
+#inner-flex {
+  display: flex;
+  align-items: center;
+}
+
+span {
+  display: inline-block;
+  inline-size: 50px;
+  block-size: 10px;
+}
+</style>
+<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+<div id="containing-block" style="flex-direction: column;">
+  <div id="inner-flex" style="margin: 10px; width: 100px;">
+    <div style="position: absolute; left: 0; width: 100px; background: green; writing-mode: vertical-rl;">
+      <span></span>
+      <span></span>
+    </div>
+  </div>
+  <div style="width: 100px; background: green;"></div>
+</div>
diff --git a/tests/wpt/web-platform-tests/css/css-pseudo/marker-font-variant-numeric-default-ref.html b/tests/wpt/web-platform-tests/css/css-pseudo/marker-font-variant-numeric-default-ref.html
index 4a3dd196587..3d106211219 100644
--- a/tests/wpt/web-platform-tests/css/css-pseudo/marker-font-variant-numeric-default-ref.html
+++ b/tests/wpt/web-platform-tests/css/css-pseudo/marker-font-variant-numeric-default-ref.html
@@ -2,6 +2,7 @@
 <meta charset="utf-8" />
 <title>CSS Reftest Reference</title>
 <link rel="author" title="Oriol Brufau" href="mailto:obrufau@igalia.com" />
+<link rel="mismatch" href="marker-font-variant-numeric-normal-ref.html">
 <style>
 @font-face {
   /* This font looks different with 'font-variant-numeric: tabular-nums' */
diff --git a/tests/wpt/web-platform-tests/css/css-pseudo/marker-font-variant-numeric-default.html b/tests/wpt/web-platform-tests/css/css-pseudo/marker-font-variant-numeric-default.html
index 037ec8a0c3c..21840697c77 100644
--- a/tests/wpt/web-platform-tests/css/css-pseudo/marker-font-variant-numeric-default.html
+++ b/tests/wpt/web-platform-tests/css/css-pseudo/marker-font-variant-numeric-default.html
@@ -4,7 +4,6 @@
 <link rel="author" title="Oriol Brufau" href="mailto:obrufau@igalia.com" />
 <link rel="help" href="https://drafts.csswg.org/css-pseudo-4/#marker-pseudo">
 <link rel="match" href="marker-font-variant-numeric-default-ref.html">
-<link rel="mismatch" href="marker-font-variant-numeric-normal-ref.html">
 <meta name="assert" content="Checks that the markers have the same width thanks to 'font-variant-numeric: tabular-nums', and thus the black boxes are perfectly aligned">
 <link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
 <style>
diff --git a/tests/wpt/web-platform-tests/css/css-pseudo/marker-font-variant-numeric-normal-ref.html b/tests/wpt/web-platform-tests/css/css-pseudo/marker-font-variant-numeric-normal-ref.html
index db5923cda20..45ab55d14b8 100644
--- a/tests/wpt/web-platform-tests/css/css-pseudo/marker-font-variant-numeric-normal-ref.html
+++ b/tests/wpt/web-platform-tests/css/css-pseudo/marker-font-variant-numeric-normal-ref.html
@@ -2,6 +2,7 @@
 <meta charset="utf-8" />
 <title>CSS Reftest Reference</title>
 <link rel="author" title="Oriol Brufau" href="mailto:obrufau@igalia.com" />
+<link rel="mismatch" href="marker-font-variant-numeric-default-ref.html">
 <style>
 @font-face {
   /* This font looks different with 'font-variant-numeric: tabular-nums' */
diff --git a/tests/wpt/web-platform-tests/css/css-pseudo/marker-font-variant-numeric-normal.html b/tests/wpt/web-platform-tests/css/css-pseudo/marker-font-variant-numeric-normal.html
index d135afe41eb..e763f2871cc 100644
--- a/tests/wpt/web-platform-tests/css/css-pseudo/marker-font-variant-numeric-normal.html
+++ b/tests/wpt/web-platform-tests/css/css-pseudo/marker-font-variant-numeric-normal.html
@@ -4,7 +4,6 @@
 <link rel="author" title="Oriol Brufau" href="mailto:obrufau@igalia.com" />
 <link rel="help" href="https://drafts.csswg.org/css-pseudo-4/#marker-pseudo">
 <link rel="match" href="marker-font-variant-numeric-normal-ref.html">
-<link rel="mismatch" href="marker-font-variant-numeric-default-ref.html">
 <meta name="assert" content="Checks that the marker default 'font-variant-numeric: tabular-nums' can be overridden with 'font-variant-numeric: normal'">
 <link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
 <style>
diff --git a/tests/wpt/web-platform-tests/css/css-pseudo/marker-unicode-bidi-default-ref.html b/tests/wpt/web-platform-tests/css/css-pseudo/marker-unicode-bidi-default-ref.html
index 71e81474ce1..c3c6ee8a63d 100644
--- a/tests/wpt/web-platform-tests/css/css-pseudo/marker-unicode-bidi-default-ref.html
+++ b/tests/wpt/web-platform-tests/css/css-pseudo/marker-unicode-bidi-default-ref.html
@@ -2,6 +2,7 @@
 <meta charset="utf-8" />
 <title>CSS Reftest Reference</title>
 <link rel="author" title="Oriol Brufau" href="mailto:obrufau@igalia.com" />
+<link rel="mismatch" href="marker-unicode-bidi-normal-ref.html">
 <style>
 ol {
   float: left;
diff --git a/tests/wpt/web-platform-tests/css/css-pseudo/marker-unicode-bidi-default.html b/tests/wpt/web-platform-tests/css/css-pseudo/marker-unicode-bidi-default.html
index 00d4d28e7d0..e732009a57b 100644
--- a/tests/wpt/web-platform-tests/css/css-pseudo/marker-unicode-bidi-default.html
+++ b/tests/wpt/web-platform-tests/css/css-pseudo/marker-unicode-bidi-default.html
@@ -4,7 +4,6 @@
 <link rel="author" title="Oriol Brufau" href="mailto:obrufau@igalia.com" />
 <link rel="help" href="https://drafts.csswg.org/css-pseudo-4/#marker-pseudo">
 <link rel="match" href="marker-unicode-bidi-default-ref.html">
-<link rel="mismatch" href="marker-unicode-bidi-normal-ref.html">
 <meta name="assert" content="Checks that the markers are isolated from the list items by the bidi algorithm">
 <link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
 <style>
diff --git a/tests/wpt/web-platform-tests/css/css-pseudo/marker-unicode-bidi-normal-ref.html b/tests/wpt/web-platform-tests/css/css-pseudo/marker-unicode-bidi-normal-ref.html
index 825c601ed4c..292fd01bb34 100644
--- a/tests/wpt/web-platform-tests/css/css-pseudo/marker-unicode-bidi-normal-ref.html
+++ b/tests/wpt/web-platform-tests/css/css-pseudo/marker-unicode-bidi-normal-ref.html
@@ -2,6 +2,7 @@
 <meta charset="utf-8" />
 <title>CSS Reftest Reference</title>
 <link rel="author" title="Oriol Brufau" href="mailto:obrufau@igalia.com" />
+<link rel="mismatch" href="marker-unicode-bidi-default-ref.html">
 <style>
 ol {
   float: left;
diff --git a/tests/wpt/web-platform-tests/css/css-pseudo/marker-unicode-bidi-normal.html b/tests/wpt/web-platform-tests/css/css-pseudo/marker-unicode-bidi-normal.html
index ec01afa4a19..4cdc86522a5 100644
--- a/tests/wpt/web-platform-tests/css/css-pseudo/marker-unicode-bidi-normal.html
+++ b/tests/wpt/web-platform-tests/css/css-pseudo/marker-unicode-bidi-normal.html
@@ -4,7 +4,6 @@
 <link rel="author" title="Oriol Brufau" href="mailto:obrufau@igalia.com" />
 <link rel="help" href="https://drafts.csswg.org/css-pseudo-4/#marker-pseudo">
 <link rel="match" href="marker-unicode-bidi-normal-ref.html">
-<link rel="mismatch" href="marker-unicode-bidi-default-ref.html">
 <meta name="assert" content="Checks that the marker default 'unicode-bidi: isolate' can be overridden with 'unicode-bidi: normal'">
 <link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
 <style>
diff --git a/tests/wpt/web-platform-tests/css/css-text/hyphens/hyphens-overflow-001.html b/tests/wpt/web-platform-tests/css/css-text/hyphens/hyphens-overflow-001.html
index 948b728254a..4154e5e1181 100644
--- a/tests/wpt/web-platform-tests/css/css-text/hyphens/hyphens-overflow-001.html
+++ b/tests/wpt/web-platform-tests/css/css-text/hyphens/hyphens-overflow-001.html
@@ -9,6 +9,7 @@ div {
   font-size: 10px;
   font-family: Ahem;
   width: 5.1ch;
+  border: 1px solid blue;
 }
 </style>
 <body>
@@ -18,4 +19,7 @@ div {
   <div>1234&shy;xx</div>
   <div>12345&shy;xx</div>
   <div>123456&shy;xx</div>
+
+  <div style="width: 10ch"><span>ren&shy;for&shy;cer</span>99999</div>
+  <div><span>00&shy;1</span>222</div>
 </body>
diff --git a/tests/wpt/web-platform-tests/css/css-text/hyphens/reference/hyphens-overflow-001-ref.html b/tests/wpt/web-platform-tests/css/css-text/hyphens/reference/hyphens-overflow-001-ref.html
index 08d521d3396..db002ce45d8 100644
--- a/tests/wpt/web-platform-tests/css/css-text/hyphens/reference/hyphens-overflow-001-ref.html
+++ b/tests/wpt/web-platform-tests/css/css-text/hyphens/reference/hyphens-overflow-001-ref.html
@@ -4,6 +4,8 @@
 div {
   font-size: 10px;
   font-family: Ahem;
+  width: 5.1ch;
+  border: 1px solid blue;
 }
 </style>
 <body>
@@ -13,4 +15,7 @@ div {
   <div>1234-<br>xx</div>
   <div>12345-<br>xx</div>
   <div>123456-<br>xx</div>
+
+  <div style="width: 10ch">renfor-<br>cer99999</div>
+  <div>00-<br>1222</div>
 </body>
diff --git a/tests/wpt/web-platform-tests/css/css-typed-om/idlharness.html b/tests/wpt/web-platform-tests/css/css-typed-om/idlharness.html
index 976bb32f2f8..ba500ce26c9 100644
--- a/tests/wpt/web-platform-tests/css/css-typed-om/idlharness.html
+++ b/tests/wpt/web-platform-tests/css/css-typed-om/idlharness.html
@@ -2,6 +2,7 @@
 <meta charset=utf-8>
 <title>CSS Typed OM IDL</title>
 <link rel="help" href="https://drafts.css-houdini.org/css-typed-om-1/#idl-index">
+<meta name="timeout" content="long">
 <script src="/resources/testharness.js"></script>
 <script src="/resources/testharnessreport.js"></script>
 <script src="/resources/WebIDLParser.js"></script>
diff --git a/tests/wpt/web-platform-tests/css/cssom-view/resources/matchMedia.js b/tests/wpt/web-platform-tests/css/cssom-view/resources/matchMedia.js
index 8623a6597a0..f8947e0472f 100644
--- a/tests/wpt/web-platform-tests/css/cssom-view/resources/matchMedia.js
+++ b/tests/wpt/web-platform-tests/css/cssom-view/resources/matchMedia.js
@@ -51,7 +51,9 @@ var getWindow = mql => {
 
 var waitForChangesReported = () => {
     return new Promise(resolve => {
-        step_timeout(resolve, 75);
+        requestAnimationFrame(() => {
+            requestAnimationFrame(resolve);
+        });
     });
 };
 
diff --git a/tests/wpt/web-platform-tests/css/motion/offset-anchor-transform-box-fill-box-003.html b/tests/wpt/web-platform-tests/css/motion/offset-anchor-transform-box-fill-box-003.html
new file mode 100644
index 00000000000..8972b2ecd60
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/motion/offset-anchor-transform-box-fill-box-003.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<title>CSS Motion Path: offset-anchor with transform-box: fill-box on the svg g element</title>
+<link rel="help" href="https://drafts.fxtf.org/motion-1/#offset-anchor-property">
+<link rel="match" href="offset-anchor-transform-box-fill-box-ref.html">
+<meta name="assert" content="Tests offset-anchor together with a fill-box transform-box on the <g> element">
+<style>
+#target {
+  transform-box: fill-box;
+  offset-anchor: 25% 25%;
+  offset-path: path("M75,-25v100");
+  offset-distance: 50%;
+}
+</style>
+<svg width="400" height="400">
+  <rect width="100" height="100" fill="red"/>
+  <g id='target'>
+    <rect x="150" y="100" width="100" height="100" fill="green"/>
+  </g>
+</svg>
diff --git a/tests/wpt/web-platform-tests/custom-elements/adopted-callback.html b/tests/wpt/web-platform-tests/custom-elements/adopted-callback.html
index 5c08a04a421..1ed4634dba9 100644
--- a/tests/wpt/web-platform-tests/custom-elements/adopted-callback.html
+++ b/tests/wpt/web-platform-tests/custom-elements/adopted-callback.html
@@ -117,6 +117,38 @@ document_types().forEach(function (entry) {
         });
     }, 'Moving the shadow host of a custom element from the owner document into ' + documentName + ' must enqueue and invoke adoptedCallback');
 
+    promise_test(function () {
+        return getDocument().then(function (doc) {
+            const instance = document.createElement('my-custom-element');
+            const host = document.createElement('div');
+            const shadowRoot = host.attachShadow({mode: 'closed'});
+            shadowRoot.appendChild(instance);
+            document.body.appendChild(host);
+
+            calls = [];
+            doc.documentElement.appendChild(shadowRoot);
+            assert_array_equals(calls, ['disconnected', 'adopted', document, doc, 'connected']);
+        });
+    }, 'Moving the shadow host\'s shadow of a custom element from the owner document into ' + documentName + ' must enqueue and invoke adoptedCallback');
+
+    promise_test(function () {
+        return getDocument().then(function (doc) {
+            const instance = document.createElement('my-custom-element');
+            const template = document.createElement('template');
+            const templateContent = template.content;
+            templateContent.appendChild(instance);
+            document.body.appendChild(template);
+
+            calls = [];
+            doc.documentElement.appendChild(templateContent);
+            if (doc === templateContent.ownerDocument) {
+                assert_array_equals(calls, ['connected']);
+            } else {
+                assert_array_equals(calls, ['adopted', templateContent.ownerDocument, doc, 'connected']);
+            }
+        });
+    }, 'Moving the <template>\'s content of a custom element from the owner document into ' + documentName + ' must enqueue and invoke adoptedCallback');
+
     promise_test(function () {
         return getDocument().then(function (doc) {
             var instance = document.createElement('my-custom-element');
diff --git a/tests/wpt/web-platform-tests/docs/writing-tests/testdriver.md b/tests/wpt/web-platform-tests/docs/writing-tests/testdriver.md
index bc1cf8dcad1..4c28b887110 100644
--- a/tests/wpt/web-platform-tests/docs/writing-tests/testdriver.md
+++ b/tests/wpt/web-platform-tests/docs/writing-tests/testdriver.md
@@ -29,8 +29,8 @@ Test authors are encouraged to use the builder API to generate the sequence of a
 API can be accessed via the `new test_driver.Actions()` object, and actions are defined in [testdriver-actions.js](https://github.com/web-platform-tests/wpt/blob/master/resources/testdriver-actions.js)
 
 The `actions.send()` function causes the sequence of actions to be sent to the browser. It is based on the [WebDriver API](https://w3c.github.io/webdriver/#actions).
-The action can be a keyboard action, a pointer action or a pause. It returns a `Promise` that
-resolves after the actions have been sent or rejects if an error was thrown.
+The action can be a keyboard action, a pointer action or a pause. It returns a promise that
+resolves after the actions have been sent, or rejects if an error was thrown.
 
 
 Example:
@@ -49,7 +49,7 @@ let actions = new test_driver.Actions()
 actions.send();
 ```
 
-Calling into `send()` is going to dispatch the action sequence (via `test_driver.action_sequence`) and also returns a `Promise` which should be handled however is appropriate in the test. The other functions in the `Actions()` object are going to modify the state of the object by adding a new action in the sequence and return the same object. So the functions can be easily chained as shown in the example above. Here is a list of helper functions in the `Actions` class:
+Calling into `send()` is going to dispatch the action sequence (via `test_driver.action_sequence`) and also returns a promise which should be handled however is appropriate in the test. The other functions in the `Actions()` object are going to modify the state of the object by adding a new action in the sequence and returning the same object. So the functions can be easily chained, as shown in the example above. Here is a list of helper functions in the `Actions` class:
 
 ```
 pointerDown: Create a pointerDown event for the current default pointer source
@@ -68,19 +68,19 @@ addKeyboard: Add a new key input source with the given name
 ### bless
 
 Usage: `test_driver.bless(intent, action)`
- * `intent`: a string describing the motivation for this invocation
- * `action`: an optional function
+ * _intent_: a string describing the motivation for this invocation
+ * _action_: an optional function
 
 This function simulates [activation][activation], allowing tests to
 perform privileged operations that require user interaction. For
-example, sandboxed iframes with the
+example, sandboxed iframes with
 `allow-top-navigation-by-user-activation` may only navigate their
-parent's browsing context under these circumstances. The `intent`
+parent's browsing context under these circumstances. The _intent_
 string is presented to human operators when the test is not run in
 automation.
 
 This method returns a promise which is resolved with the result of
-invoking the `action` function. If no such function is provided, the
+invoking the _action_ function. If no such function is provided, the
 promise is resolved with the value `undefined`.
 
 Example:
@@ -96,11 +96,11 @@ test_driver.bless('initiate media playback', function () {
 ### click
 
 Usage: `test_driver.click(element)`
- * `element`: a DOM Element object
+ * _element_: a DOM Element object
 
 This function causes a click to occur on the target element (an
 `Element` object), potentially scrolling the document to make it
-possible to click it. It returns a `Promise` that resolves after the
+possible to click it. It returns a promise that resolves after the
 click has occurred or rejects if the element cannot be clicked (for
 example, it is obscured by an element on top of it).
 
@@ -111,16 +111,16 @@ being called and the promise settling.
 ### send_keys
 
 Usage: `test_driver.send_keys(element, keys)`
- * `element`: a DOM Element object
- * `keys`: string to send to the element
+ * _element_: a DOM Element object
+ * _keys_: string to send to the element
 
-This function causes the string `keys` to be send to the target
+This function causes the string _keys_ to be sent to the target
 element (an `Element` object), potentially scrolling the document to
-make it possible to send keys. It returns a `Promise` that resolves
-after the keys have been send or rejects if the keys cannot be sent
+make it possible to send keys. It returns a promise that resolves
+after the keys have been sent, or rejects if the keys cannot be sent
 to the element.
 
-Note that if the element that's keys need to be send to does not have
+Note that if the element that the keys need to be sent to does not have
 a unique ID, the document must not have any DOM mutations made
 between the function being called and the promise settling.
 
@@ -128,3 +128,27 @@ To send special keys, one must send the respective key's codepoint. Since this u
 For example, to send the tab key you would send "\uE004".
 
 [activation]: https://html.spec.whatwg.org/multipage/interaction.html#activation
+
+### set_permission
+
+Usage: `test_driver.set_permission(descriptor, state, one_realm)`
+ * _descriptor_: a
+   [PermissionDescriptor](https://w3c.github.io/permissions/#dictdef-permissiondescriptor)
+   or derived object
+ * _state_: a
+   [PermissionState](https://w3c.github.io/permissions/#enumdef-permissionstate)
+   value
+ * _one_realm_: a boolean that indicates whether the permission settings
+   apply to only one realm
+
+This function causes permission requests and queries for the status of a
+certain permission type (e.g. "push", or "background-fetch") to always
+return _state_. It returns a promise that resolves after the permission has
+been set to be overridden with _state_.
+
+Example:
+
+``` js
+await test_driver.set_permission({ name: "background-fetch" }, "denied");
+await test_driver.set_permission({ name: "push", userVisibleOnly: true }, "granted", true);
+```
diff --git a/tests/wpt/web-platform-tests/dom/nodes/adoption.window.js b/tests/wpt/web-platform-tests/dom/nodes/adoption.window.js
new file mode 100644
index 00000000000..86893a4ae77
--- /dev/null
+++ b/tests/wpt/web-platform-tests/dom/nodes/adoption.window.js
@@ -0,0 +1,58 @@
+// Testing DocumentFragment with host separately as it has a different node document by design
+test(() => {
+  const df = document.createElement("template").content;
+  const child = df.appendChild(new Text('hi'));
+  assert_not_equals(df.ownerDocument, document);
+  const nodeDocument = df.ownerDocument;
+  document.body.appendChild(df);
+  assert_equals(df.childNodes.length, 0);
+  assert_equals(child.ownerDocument, document);
+  assert_equals(df.ownerDocument, nodeDocument);
+}, `appendChild() and DocumentFragment with host`);
+
+test(() => {
+  const df = document.createElement("template").content;
+  const child = df.appendChild(new Text('hi'));
+  const nodeDocument = df.ownerDocument;
+  document.adoptNode(df);
+  assert_equals(df.childNodes.length, 1);
+  assert_equals(child.ownerDocument, nodeDocument);
+  assert_equals(df.ownerDocument, nodeDocument);
+}, `adoptNode() and DocumentFragment with host`);
+
+[
+  {
+    "name": "DocumentFragment",
+    "creator": doc => doc.createDocumentFragment()
+  },
+  {
+    "name": "ShadowRoot",
+    "creator": doc => doc.createElementNS("http://www.w3.org/1999/xhtml", "div").attachShadow({mode: "closed"})
+  }
+].forEach(dfTest => {
+  test(() => {
+    const doc = new Document();
+    const df = dfTest.creator(doc);
+    const child = df.appendChild(new Text('hi'));
+    assert_equals(df.ownerDocument, doc);
+
+    document.body.appendChild(df);
+    assert_equals(df.childNodes.length, 0);
+    assert_equals(child.ownerDocument, document);
+    assert_equals(df.ownerDocument, doc);
+  }, `appendChild() and ${dfTest.name}`);
+
+  test(() => {
+    const doc = new Document();
+    const df = dfTest.creator(doc);
+    const child = df.appendChild(new Text('hi'));
+    if (dfTest.name === "ShadowRoot") {
+      assert_throws("HierarchyRequestError", () => document.adoptNode(df));
+    } else {
+      document.adoptNode(df);
+      assert_equals(df.childNodes.length, 1);
+      assert_equals(child.ownerDocument, document);
+      assert_equals(df.ownerDocument, document);
+    }
+  }, `adoptNode() and ${dfTest.name}`);
+});
diff --git a/tests/wpt/web-platform-tests/fetch/api/redirect/redirect-method.any.js b/tests/wpt/web-platform-tests/fetch/api/redirect/redirect-method.any.js
index 056ccf847bb..b24bb092c60 100644
--- a/tests/wpt/web-platform-tests/fetch/api/redirect/redirect-method.any.js
+++ b/tests/wpt/web-platform-tests/fetch/api/redirect/redirect-method.any.js
@@ -7,28 +7,70 @@
 // |opts.expectedBodyAsString|: the expected response body as a string. The
 // server is expected to echo the request body. The default is the empty string
 // if the request after redirection isn't POST; otherwise it's |opts.body|.
+// |opts.expectedRequestContentType|: the expected Content-Type of redirected
+// request.
 function redirectMethod(desc, redirectUrl, redirectLocation, redirectStatus, method, expectedMethod, opts) {
-  var url = redirectUrl;
-  var urlParameters = "?redirect_status=" + redirectStatus;
+  let url = redirectUrl;
+  let urlParameters = "?redirect_status=" + redirectStatus;
   urlParameters += "&location=" + encodeURIComponent(redirectLocation);
 
-  var requestInit = {"method": method, "redirect": "follow"};
+  let requestHeaders = {
+    "Content-Encoding": "Identity",
+    "Content-Language": "en-US",
+    "Content-Location": "foo",
+  };
+  let requestInit = {"method": method, "redirect": "follow", "headers" : requestHeaders};
   opts = opts || {};
-  if (opts.body)
+  if (opts.body) {
     requestInit.body = opts.body;
+  }
 
   promise_test(function(test) {
     return fetch(url + urlParameters, requestInit).then(function(resp) {
+      let expectedRequestContentType = "NO";
+      if (opts.expectedRequestContentType) {
+        expectedRequestContentType = opts.expectedRequestContentType;
+      }
+
       assert_equals(resp.status, 200, "Response's status is 200");
       assert_equals(resp.type, "basic", "Response's type basic");
-      assert_equals(resp.headers.get("x-request-method"), expectedMethod, "Request method after redirection is " + expectedMethod);
+      assert_equals(
+        resp.headers.get("x-request-method"),
+        expectedMethod,
+        "Request method after redirection is " + expectedMethod);
+      let hasRequestBodyHeader = true;
+      if (opts.expectedStripRequestBodyHeader) {
+        hasRequestBodyHeader = !opts.expectedStripRequestBodyHeader;
+      }
+      assert_equals(
+        resp.headers.get("x-request-content-type"),
+        expectedRequestContentType,
+        "Request Content-Type after redirection is " + expectedRequestContentType);
+      [
+        "Content-Encoding",
+        "Content-Language",
+        "Content-Location"
+      ].forEach(header => {
+        let xHeader = "x-request-" + header.toLowerCase();
+        let expectedValue = hasRequestBodyHeader ? requestHeaders[header] : "NO";
+        assert_equals(
+          resp.headers.get(xHeader),
+          expectedValue,
+          "Request " + header + " after redirection is " + expectedValue);
+      });
       assert_true(resp.redirected);
       return resp.text().then(function(text) {
         let expectedBody = "";
-        if (expectedMethod == "POST")
+        if (expectedMethod == "POST") {
           expectedBody = opts.expectedBodyAsString || requestInit.body;
+        }
+        let expectedContentLength = expectedBody ? expectedBody.length.toString() : "NO";
         assert_equals(text, expectedBody, "request body");
-      });
+        assert_equals(
+          resp.headers.get("x-request-content-length"),
+          expectedContentLength,
+          "Request Content-Length after redirection is " + expectedContentLength);
+        });
     });
   }, desc);
 }
@@ -49,19 +91,20 @@ const blobBody = new Blob(["it's me the blob!", " ", "and more blob!"]);
 const blobBodyAsString = "it's me the blob! and more blob!";
 
 redirectMethod("Redirect 301 with GET", redirUrl, locationUrl, 301, "GET", "GET");
-redirectMethod("Redirect 301 with POST", redirUrl, locationUrl, 301, "POST", "GET", { body: stringBody });
+redirectMethod("Redirect 301 with POST", redirUrl, locationUrl, 301, "POST", "GET", { body: stringBody, expectedStripRequestBodyHeader: true });
 redirectMethod("Redirect 301 with HEAD", redirUrl, locationUrl, 301, "HEAD", "HEAD");
 
 redirectMethod("Redirect 302 with GET", redirUrl, locationUrl, 302, "GET", "GET");
-redirectMethod("Redirect 302 with POST", redirUrl, locationUrl, 302, "POST", "GET", { body: stringBody });
+redirectMethod("Redirect 302 with POST", redirUrl, locationUrl, 302, "POST", "GET", { body: stringBody, expectedStripRequestBodyHeader: true });
 redirectMethod("Redirect 302 with HEAD", redirUrl, locationUrl, 302, "HEAD", "HEAD");
 
 redirectMethod("Redirect 303 with GET", redirUrl, locationUrl, 303, "GET", "GET");
-redirectMethod("Redirect 303 with POST", redirUrl, locationUrl, 303, "POST", "GET", { body: stringBody });
+redirectMethod("Redirect 303 with POST", redirUrl, locationUrl, 303, "POST", "GET", { body: stringBody, expectedStripRequestBodyHeader: true });
 redirectMethod("Redirect 303 with HEAD", redirUrl, locationUrl, 303, "HEAD", "HEAD");
+redirectMethod("Redirect 303 with TESTING", redirUrl, locationUrl, 303, "TESTING", "GET", { expectedStripRequestBodyHeader: true });
 
 redirectMethod("Redirect 307 with GET", redirUrl, locationUrl, 307, "GET", "GET");
-redirectMethod("Redirect 307 with POST (string body)", redirUrl, locationUrl, 307, "POST", "POST", { body: stringBody });
+redirectMethod("Redirect 307 with POST (string body)", redirUrl, locationUrl, 307, "POST", "POST", { body: stringBody , expectedRequestContentType: "text/plain;charset=UTF-8"});
 redirectMethod("Redirect 307 with POST (blob body)", redirUrl, locationUrl, 307, "POST", "POST", { body: blobBody, expectedBodyAsString: blobBodyAsString });
 redirectMethod("Redirect 307 with HEAD", redirUrl, locationUrl, 307, "HEAD", "HEAD");
 
diff --git a/tests/wpt/web-platform-tests/fetch/api/resources/method.py b/tests/wpt/web-platform-tests/fetch/api/resources/method.py
index db234f9d123..795ad1ff11d 100644
--- a/tests/wpt/web-platform-tests/fetch/api/resources/method.py
+++ b/tests/wpt/web-platform-tests/fetch/api/resources/method.py
@@ -8,4 +8,9 @@ def main(request, response):
         headers.append(("Access-Control-Expose-Headers", "x-request-method"))
 
     headers.append(("x-request-method", request.method))
+    headers.append(("x-request-content-type", request.headers.get("Content-Type", "NO")))
+    headers.append(("x-request-content-length", request.headers.get("Content-Length", "NO")))
+    headers.append(("x-request-content-encoding", request.headers.get("Content-Encoding", "NO")))
+    headers.append(("x-request-content-language", request.headers.get("Content-Language", "NO")))
+    headers.append(("x-request-content-location", request.headers.get("Content-Location", "NO")))
     return headers, request.body
diff --git a/tests/wpt/web-platform-tests/html/browsers/windows/document-domain-nested-navigate.window.js b/tests/wpt/web-platform-tests/html/browsers/windows/document-domain-nested-navigate.window.js
new file mode 100644
index 00000000000..b639c819267
--- /dev/null
+++ b/tests/wpt/web-platform-tests/html/browsers/windows/document-domain-nested-navigate.window.js
@@ -0,0 +1,16 @@
+async_test(t => {
+  // Setting document.domain makes this document cross-origin with that of the frame. However,
+  // about:blank will end up reusing the origin of this document, at which point the frame's
+  // document is no longer cross-origin.
+  const frame = document.body.appendChild(document.createElement('iframe'));
+  document.domain = document.domain;
+  frame.src = "/common/blank.html";
+  frame.onload = t.step_func(() => {
+    assert_throws("SecurityError", () => window[0].document);
+    frame.src = "about:blank";
+    frame.onload = t.step_func_done(() => {
+      // Ensure we can access the child browsing context after navigation to non-initial about:blank
+      assert_equals(window[0].document, frame.contentDocument);
+    });
+  });
+}, "Navigated frame to about:blank and document.domain");
diff --git a/tests/wpt/web-platform-tests/html/browsers/windows/document-domain-nested-set.window.js b/tests/wpt/web-platform-tests/html/browsers/windows/document-domain-nested-set.window.js
new file mode 100644
index 00000000000..13c0d50ba06
--- /dev/null
+++ b/tests/wpt/web-platform-tests/html/browsers/windows/document-domain-nested-set.window.js
@@ -0,0 +1,10 @@
+test(() => {
+  // As the initial:about frame document reuses the origin of this document, setting document.domain
+  // from the frame, resulting in a origin mutation, has no effect on these documents being able to
+  // reach each other, as they share the same "physical" origin.
+  document.body.appendChild(document.createElement('iframe'));
+  const script = document.createElement("script");
+  script.text = "document.domain = document.domain";
+  window[0].document.body.appendChild(script);
+  assert_equals(window[0].document.body.localName, "body");
+}, "Initial about:blank frame and document.domain in the frame");
diff --git a/tests/wpt/web-platform-tests/html/browsers/windows/document-domain-nested.window.js b/tests/wpt/web-platform-tests/html/browsers/windows/document-domain-nested.window.js
new file mode 100644
index 00000000000..2e39d05f038
--- /dev/null
+++ b/tests/wpt/web-platform-tests/html/browsers/windows/document-domain-nested.window.js
@@ -0,0 +1,9 @@
+test(() => {
+  // As the initial:about frame document reuses the origin of this document, setting document.domain
+  // from this document, resulting in a origin mutation, has no effect on these documents being able
+  // to reach each other, as they share the same "physical" origin.
+  document.body.appendChild(document.createElement('iframe'));
+  document.domain = document.domain;
+  // Ensure we can still access the child browsing context
+  assert_equals(window[0].document.body.localName, "body");
+}, "Initial about:blank frame and document.domain");
diff --git a/tests/wpt/web-platform-tests/html/rendering/replaced-elements/attributes-for-embedded-content-and-images/img-aspect-ratio.html b/tests/wpt/web-platform-tests/html/rendering/replaced-elements/attributes-for-embedded-content-and-images/img-aspect-ratio.html
index c9ce86869e1..5b155c1047d 100644
--- a/tests/wpt/web-platform-tests/html/rendering/replaced-elements/attributes-for-embedded-content-and-images/img-aspect-ratio.html
+++ b/tests/wpt/web-platform-tests/html/rendering/replaced-elements/attributes-for-embedded-content-and-images/img-aspect-ratio.html
@@ -11,6 +11,7 @@
 </style>
 <img src="/images/green.png">
 <img src="/images/green.png" width=100 height=125>
+<img src="" width=100 height=125>
 <script>
 let t = async_test("Image width and height attributes are used to infer aspect-ratio");
 function assert_ratio(img, expected) {
@@ -46,7 +47,8 @@ t.step(function() {
 
 onload = t.step_func_done(function() {
   let images = document.querySelectorAll("img");
-  assert_ratio(images[2], 1.266); // 1.266 is the original aspect ratio of blue.png
+  assert_ratio(images[3], 1.266); // 1.266 is the original aspect ratio of blue.png
+  assert_equals(getComputedStyle(images[2]).height, "0px"); // aspect-ratio doesn't override intrinsic size of images that don't have any src.
   assert_ratio(images[1], 2.0); // 2.0 is the original aspect ratio of green.png
   assert_ratio(images[0], 2.0); // Loaded image's aspect ratio, at least by default, overrides width / height ratio.
 });
diff --git a/tests/wpt/web-platform-tests/html/semantics/document-metadata/the-style-element/mutations.window.js b/tests/wpt/web-platform-tests/html/semantics/document-metadata/the-style-element/mutations.window.js
index 145ea8b66a9..1c93b403949 100644
--- a/tests/wpt/web-platform-tests/html/semantics/document-metadata/the-style-element/mutations.window.js
+++ b/tests/wpt/web-platform-tests/html/semantics/document-metadata/the-style-element/mutations.window.js
@@ -37,3 +37,12 @@ test(t => {
   comment.remove();
   assert_not_equals(sheet, style.sheet);
 }, "Mutating the style element: removing a Comment node");
+
+test(t => {
+  const style = document.body.appendChild(document.createElement("style"));
+  const sheet = style.sheet;
+  t.add_cleanup(() => style.remove());
+  assert_not_equals(sheet, null);
+  style.appendChild(new DocumentFragment());
+  assert_equals(sheet, style.sheet);
+}, "Mutating the style element: inserting an empty DocumentFragment node");
diff --git a/tests/wpt/web-platform-tests/html/semantics/forms/constraints/form-validation-validity-stepMismatch.html b/tests/wpt/web-platform-tests/html/semantics/forms/constraints/form-validation-validity-stepMismatch.html
index 6d8192bfbfe..4d4b4328f4c 100644
--- a/tests/wpt/web-platform-tests/html/semantics/forms/constraints/form-validation-validity-stepMismatch.html
+++ b/tests/wpt/web-platform-tests/html/semantics/forms/constraints/form-validation-validity-stepMismatch.html
@@ -69,7 +69,10 @@
         {conditions: {step: "", value: "-.8"}, expected: true, name: "[target] The step attribute is not set and the value attribute is a floating number"},
         {conditions: {step: 2 * 1 * 1, value: ""}, expected: false, name: "[target] The value attribute is empty string"},
         {conditions: {step: 2 * 1 * 1, value: "2"}, expected: false, name: "[target] The value must match the step"},
-        {conditions: {step: 2 * 1 * 1, value: "3"}, expected: true, name: "[target] The value must mismatch the step"}
+        {conditions: {step: 2 * 1 * 1, value: "3"}, expected: true, name: "[target] The value must mismatch the step"},
+        {conditions: {step: 0.003, value: "3.6"}, expected: false, name: "[target] No step mismatch when step is a floating number and value is its integral multiple"},
+        {conditions: {step: 1e-12, value: "-12345678.9"}, expected: false, name: "[target] No step mismatch when step is a floating number in exponent format and value is its integral multiple"},
+        {conditions: {step: 3e-15, value: "17"}, expected: true, name: "[target] Step mismatch when step is a very small floating number and value is not its integral multiple"},
       ]
     }
   ];
diff --git a/tests/wpt/web-platform-tests/html/semantics/forms/constraints/support/validator.js b/tests/wpt/web-platform-tests/html/semantics/forms/constraints/support/validator.js
index e969ce460da..9b28b32309e 100644
--- a/tests/wpt/web-platform-tests/html/semantics/forms/constraints/support/validator.js
+++ b/tests/wpt/web-platform-tests/html/semantics/forms/constraints/support/validator.js
@@ -1,16 +1,23 @@
 var validator = {
+
   test_tooLong: function(ctl, data) {
     var self = this;
-    test(function () {
-       self.pre_check(ctl, "tooLong");
+    test(function() {
+      self.pre_check(ctl, 'tooLong');
       self.set_conditions(ctl, data.conditions);
-      if (data.dirty)
-        self.set_dirty(ctl);
-
-      if (data.expected)
-        assert_true(ctl.validity.tooLong, "The validity.tooLong should be true.");
-      else
-        assert_false(ctl.validity.tooLong, "The validity.tooLong should be false.");
+      self.iterate_over(ctl, data).forEach(function(val) {
+        const {ctl, data, condStr} = val;
+        if (data.dirty)
+          self.set_dirty(ctl);
+        if (data.expected)
+          assert_true(
+              ctl.validity.tooLong,
+              'The validity.tooLong should be true' + condStr);
+        else
+          assert_false(
+              ctl.validity.tooLong,
+              'The validity.tooLong should be false' + condStr);
+      });
     }, data.name);
   },
 
@@ -19,13 +26,19 @@ var validator = {
     test(function () {
       self.pre_check(ctl, "tooShort");
       self.set_conditions(ctl, data.conditions);
-      if (data.dirty)
-        self.set_dirty(ctl);
-
-      if (data.expected)
-        assert_true(ctl.validity.tooShort, "The validity.tooShort should be true.");
-      else
-        assert_false(ctl.validity.tooShort, "The validity.tooShort should be false.");
+      self.iterate_over(ctl, data).forEach(function(val) {
+        const {ctl, data, condStr} = val;
+        if (data.dirty)
+          self.set_dirty(ctl);
+        if (data.expected)
+          assert_true(
+              ctl.validity.tooShort,
+              'The validity.tooShort should be true' + condStr);
+        else
+          assert_false(
+              ctl.validity.tooShort,
+              'The validity.tooShort should be false' + condStr);
+      });
     }, data.name);
   },
 
@@ -34,11 +47,17 @@ var validator = {
     test(function () {
       self.pre_check(ctl, "patternMismatch");
       self.set_conditions(ctl, data.conditions);
-
-      if (data.expected)
-        assert_true(ctl.validity.patternMismatch, "The validity.patternMismatch should be true.");
-      else
-        assert_false(ctl.validity.patternMismatch, "The validity.patternMismatch should be false.");
+      self.iterate_over(ctl, data).forEach(function(val) {
+        const {ctl, data, condStr} = val;
+        if (data.expected)
+          assert_true(
+              ctl.validity.patternMismatch,
+              'The validity.patternMismatch should be true' + condStr);
+        else
+          assert_false(
+              ctl.validity.patternMismatch,
+              'The validity.patternMismatch should be false' + condStr);
+      });
     }, data.name);
   },
 
@@ -47,10 +66,17 @@ var validator = {
     test(function () {
       self.pre_check(ctl, "valueMissing");
       self.set_conditions(ctl, data.conditions);
-      if (data.expected)
-        assert_true(ctl.validity.valueMissing, "The validity.valueMissing should be true.");
-      else
-        assert_false(ctl.validity.valueMissing, "The validity.valueMissing should be false.");
+      self.iterate_over(ctl, data).forEach(function(val) {
+        const {ctl, data, condStr} = val;
+        if (data.expected)
+          assert_true(
+              ctl.validity.valueMissing,
+              'The validity.valueMissing should be true' + condStr);
+        else
+          assert_false(
+              ctl.validity.valueMissing,
+              'The validity.valueMissing should be false' + condStr);
+      });
     }, data.name);
   },
 
@@ -59,11 +85,17 @@ var validator = {
     test(function () {
       self.pre_check(ctl, "typeMismatch");
       self.set_conditions(ctl, data.conditions);
-
-      if (data.expected)
-        assert_true(ctl.validity.typeMismatch, "The validity.typeMismatch should be true.");
-      else
-        assert_false(ctl.validity.typeMismatch, "The validity.typeMismatch should be false.");
+      self.iterate_over(ctl, data).forEach(function(val) {
+        const {ctl, data, condStr} = val;
+        if (data.expected)
+          assert_true(
+              ctl.validity.typeMismatch,
+              'The validity.typeMismatch should be true' + condStr);
+        else
+          assert_false(
+              ctl.validity.typeMismatch,
+              'The validity.typeMismatch should be false' + condStr);
+      });
     }, data.name);
   },
 
@@ -72,11 +104,17 @@ var validator = {
     test(function () {
       self.pre_check(ctl, "rangeOverflow");
       self.set_conditions(ctl, data.conditions);
-
-      if (data.expected)
-        assert_true(ctl.validity.rangeOverflow, "The validity.rangeOverflow should be true.");
-      else
-        assert_false(ctl.validity.rangeOverflow, "The validity.rangeOverflow should be false.");
+      self.iterate_over(ctl, data).forEach(function(val) {
+        const {ctl, data, condStr} = val;
+        if (data.expected)
+          assert_true(
+              ctl.validity.rangeOverflow,
+              'The validity.rangeOverflow should be true' + condStr);
+        else
+          assert_false(
+              ctl.validity.rangeOverflow,
+              'The validity.rangeOverflow should be false' + condStr);
+      });
     }, data.name);
   },
 
@@ -85,10 +123,17 @@ var validator = {
     test(function () {
       self.pre_check(ctl, "rangeUnderflow");
       self.set_conditions(ctl, data.conditions);
-      if (data.expected)
-        assert_true(ctl.validity.rangeUnderflow, "The validity.rangeUnderflow should be true.");
-      else
-        assert_false(ctl.validity.rangeUnderflow, "The validity.rangeUnderflow should be false.");
+      self.iterate_over(ctl, data).forEach(function(val) {
+        const {ctl, data, condStr} = val;
+        if (data.expected)
+          assert_true(
+              ctl.validity.rangeUnderflow,
+              'The validity.rangeUnderflow should be true' + condStr);
+        else
+          assert_false(
+              ctl.validity.rangeUnderflow,
+              'The validity.rangeUnderflow should be false' + condStr);
+      });
     }, data.name);
   },
 
@@ -97,11 +142,17 @@ var validator = {
     test(function () {
       self.pre_check(ctl, "stepMismatch");
       self.set_conditions(ctl, data.conditions);
-
-      if (data.expected)
-        assert_true(ctl.validity.stepMismatch, "The validity.stepMismatch should be true.");
-      else
-        assert_false(ctl.validity.stepMismatch, "The validity.stepMismatch should be false.");
+      self.iterate_over(ctl, data).forEach(function(val) {
+        const {ctl, data, condStr} = val;
+        if (data.expected)
+          assert_true(
+              ctl.validity.stepMismatch,
+              'The validity.stepMismatch should be true' + condStr);
+        else
+          assert_false(
+              ctl.validity.stepMismatch,
+              'The validity.stepMismatch should be false' + condStr);
+      });
     }, data.name);
   },
 
@@ -110,11 +161,17 @@ var validator = {
     test(function () {
       self.pre_check(ctl, "badInput");
       self.set_conditions(ctl, data.conditions);
-
-      if (data.expected)
-        assert_true(ctl.validity.badInput, "The validity.badInput should be true.");
-      else
-        assert_false(ctl.validity.badInput, "The validity.badInput should be false.");
+      self.iterate_over(ctl, data).forEach(function(val) {
+        const {ctl, data, condStr} = val;
+        if (data.expected)
+          assert_true(
+              ctl.validity.badInput,
+              'The validity.badInput should be true' + condStr);
+        else
+          assert_false(
+              ctl.validity.badInput,
+              'The validity.badInput should be false' + condStr);
+      });
     }, data.name);
   },
 
@@ -123,29 +180,45 @@ var validator = {
     test(function () {
       self.pre_check(ctl, "customError");
       ctl.setCustomValidity(data.conditions.message);
-
-      if (data.expected) {
-        assert_true(ctl.validity.customError, "The validity.customError attribute should be true.");
-        assert_equals(ctl.validationMessage, data.conditions.message,
-                      "The validationMessage attribute should be '" + data.conditions.message + "'.");
-      } else {
-        assert_false(ctl.validity.customError, "The validity.customError attribute should be false.");
-        assert_equals(ctl.validationMessage, "", "The validationMessage attribute must be empty.");
-      }
+      self.iterate_over(ctl, data).forEach(function(val) {
+        const {ctl, data, condStr} = val;
+        if (data.expected) {
+          assert_true(
+              ctl.validity.customError,
+              'The validity.customError attribute should be true' + condStr);
+          assert_equals(
+              ctl.validationMessage, data.conditions.message,
+              'The validationMessage attribute should be \'' +
+                  data.conditions.message + '\'' + condStr);
+        } else {
+          assert_false(
+              ctl.validity.customError,
+              'The validity.customError attribute should be false' + condStr);
+          assert_equals(
+              ctl.validationMessage, '',
+              'The validationMessage attribute must be empty' + condStr);
+        }
+      });
     }, data.name);
   },
 
-  test_isValid: function (ctl, data) {
+  test_isValid: function(ctl, data) {
     var self = this;
     test(function () {
       self.set_conditions(ctl, data.conditions);
-      if (data.dirty)
-        self.set_dirty(ctl);
-
-      if (data.expected)
-        assert_true(ctl.validity.valid, "The validity.valid should be true.");
-      else
-        assert_false(ctl.validity.valid, "The validity.valid should be false.");
+      self.iterate_over(ctl, data).forEach(function(val) {
+        const {ctl, data, condStr} = val;
+        if (data.dirty)
+          self.set_dirty(ctl);
+        if (data.expected)
+          assert_true(
+              ctl.validity.valid,
+              'The validity.valid should be true' + condStr);
+        else
+          assert_false(
+              ctl.validity.valid,
+              'The validity.valid should be false' + condStr);
+      });
     }, data.name);
   },
 
@@ -166,7 +239,7 @@ var validator = {
     }, data.name);
   },
 
-  test_checkValidity: function (ctl, data) {
+  test_checkValidity: function(ctl, data) {
     var self = this;
     test(function () {
       var eventFired = false;
@@ -210,7 +283,7 @@ var validator = {
     }, data.name + " (in a form)");
   },
 
-  test_reportValidity: function (ctl, data) {
+  test_reportValidity: function(ctl, data) {
     var self = this;
     test(function () {
       var eventFired = false;
@@ -255,13 +328,13 @@ var validator = {
     }, data.name + " (in a form)");
   },
 
-  test_support_type: function (ctl, typ, testName) {
+  test_support_type: function(ctl, typ, testName) {
     test(function () {
       assert_equals(ctl.type, typ, "The " + typ + " type should be supported.");
     }, testName);
   },
 
-  set_conditions: function (ctl, obj) {
+  set_conditions: function(ctl, obj) {
     [
       "checked",
       "disabled",
@@ -322,7 +395,28 @@ var validator = {
     }
   },
 
-  run_test: function (testee, method) {
+  iterate_over: function(ctl, data) {
+    // Iterate over normal, disabled, readonly, and both.
+    var ctlDisabled = ctl.cloneNode(true);
+    ctlDisabled.disabled = true;
+    var ctlReadonly = ctl.cloneNode(true);
+    ctlReadonly.readonly = true;
+    var ctlBoth = ctl.cloneNode(true);
+    ctlBoth.disabled = true;
+    ctlBoth.readonly = true;
+    return [
+      {ctl: ctl, data: data, condStr: '.'},
+      {ctl: ctlDisabled, data: data, condStr: ', when control is disabled.'},
+      {ctl: ctlReadonly, data: data, condStr: ', when control is readonly.'},
+      {
+        ctl: ctlBoth,
+        data: data,
+        condStr: ', when control is disabled & readonly.'
+      },
+    ]
+  },
+
+  run_test: function(testee, method) {
     var testMethod = "test_" + method;
     if (typeof this[testMethod] !== "function") {
       return false;
@@ -363,7 +457,7 @@ var validator = {
         prefix = "[" + testee[i].tag + "] ";
 
         if (testElements[i].tag === "select") {
-          ele.add(new Option("test1", ""));
+          ele.add(new Option('test1', ''));  // Placeholder
           ele.add(new Option("test2", 1));
         }
 
diff --git a/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-template-element/template-element/template-content-hierarcy.html b/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-template-element/template-element/template-content-hierarcy.html
index 1f33b96b342..046395ac7c7 100644
--- a/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-template-element/template-element/template-content-hierarcy.html
+++ b/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-template-element/template-element/template-content-hierarcy.html
@@ -1,19 +1,11 @@
 <!DOCTYPE html>
-<html>
-<head>
-<title></title>
-</head>
 <meta name="author" title="Takayoshi Kochi" href="mailto:kochi@chromium.org">
-<meta name="assert" title="host-including inclusive ancestor should be checked for template content">
-<link rel="help" href="https://dom.spec.whatwg.org/#concept-tree-host-including-inclusive-ancestor">
 <script src="/resources/testharness.js"></script>
 <script src="/resources/testharnessreport.js"></script>
-</head>
-<body>
+<div id=log></div>
 <div id="parent">
   <template id="tmpl"><span>Happy Templating!</span></template>
 </div>
-</body>
 <script>
 test(() => {
   var parent = document.getElementById('parent');
@@ -53,12 +45,11 @@ test(() => {
   assert_not_equals(new_doc, tmpl_doc);
 
   // Try moving tmpl.content to new_doc and check the results.
-  var new_node = new_doc.adoptNode(tmpl.content);
-  assert_equals(new_node.ownerDocument, new_doc);
+  const tmplContentNodeDocument = tmpl.content.ownerDocument;
+  const tmplContentAdoptResult = new_doc.adoptNode(tmpl.content);
+  assert_equals(tmpl.content, tmplContentAdoptResult);
   assert_equals(tmpl.ownerDocument, document);
-  assert_equals(tmpl.content.ownerDocument, new_doc);
-  assert_not_equals(tmpl.content.ownerDocument, tmpl_doc);
-  assert_not_equals(tmpl.content.ownerDocument, document);
+  assert_equals(tmpl.content.ownerDocument, tmplContentNodeDocument);
 
   // Hierarchy checks at various combinations.
   assert_throws('HierarchyRequestError', () => {
@@ -79,7 +70,7 @@ test(() => {
   assert_equals(tmpl.content.firstChild, span,
                 '<span> should be kept until it is removed, even after ' +
                 'adopted to another document.');
-  new_doc.body.appendChild(new_node);
+  new_doc.body.appendChild(tmpl.content);
   assert_equals(tmpl.content.firstChild, null,
                 '<span> should be removed from template content.');
   assert_equals(tmpl_content_reference, tmpl.content,
@@ -88,4 +79,3 @@ test(() => {
 }, 'Template content should throw exception when its ancestor in ' +
    'a different document but connected via host is being append.');
 </script>
-</html>
diff --git a/tests/wpt/web-platform-tests/infrastructure/metadata/infrastructure/testdriver/actions/multiTouchPointsReleaseFirstPoint.html.ini b/tests/wpt/web-platform-tests/infrastructure/metadata/infrastructure/testdriver/actions/multiTouchPointsReleaseFirstPoint.html.ini
new file mode 100644
index 00000000000..b41ec996e2f
--- /dev/null
+++ b/tests/wpt/web-platform-tests/infrastructure/metadata/infrastructure/testdriver/actions/multiTouchPointsReleaseFirstPoint.html.ini
@@ -0,0 +1,6 @@
+[multiTouchPointsReleaseFirstPoint.html]
+  expected:
+    if product == "firefox" or product == "safari": ERROR
+  [TestDriver actions: two touch points with one moving one pause]
+    expected:
+      if product == "chrome": FAIL
diff --git a/tests/wpt/web-platform-tests/infrastructure/metadata/infrastructure/testdriver/actions/multiTouchPointsReleaseSecondPoint.html.ini b/tests/wpt/web-platform-tests/infrastructure/metadata/infrastructure/testdriver/actions/multiTouchPointsReleaseSecondPoint.html.ini
new file mode 100644
index 00000000000..ad46c7be498
--- /dev/null
+++ b/tests/wpt/web-platform-tests/infrastructure/metadata/infrastructure/testdriver/actions/multiTouchPointsReleaseSecondPoint.html.ini
@@ -0,0 +1,6 @@
+[multiTouchPointsReleaseSecondPoint.html]
+  expected:
+    if product == "firefox" or product == "safari": ERROR
+  [TestDriver actions: two touch points with one moving one pause]
+    expected:
+      if product == "chrome": FAIL
diff --git a/tests/wpt/web-platform-tests/infrastructure/metadata/infrastructure/testdriver/generate_test_report.html.ini b/tests/wpt/web-platform-tests/infrastructure/metadata/infrastructure/testdriver/generate_test_report.html.ini
index 3e43b63af95..0924dbd05e5 100644
--- a/tests/wpt/web-platform-tests/infrastructure/metadata/infrastructure/testdriver/generate_test_report.html.ini
+++ b/tests/wpt/web-platform-tests/infrastructure/metadata/infrastructure/testdriver/generate_test_report.html.ini
@@ -1,4 +1,4 @@
 [generate_test_report.html]
-  expected:
-    if product == "firefox": ERROR
-    if product == "safari" or product == "epiphany" or product == "webkit": ERROR
+  [TestDriver generate_test_report method]
+    expected:
+      if product == "firefox" or product == "safari" or product == "epiphany" or product == "webkit": FAIL
diff --git a/tests/wpt/web-platform-tests/infrastructure/metadata/infrastructure/testdriver/set_permission.https.html.ini b/tests/wpt/web-platform-tests/infrastructure/metadata/infrastructure/testdriver/set_permission.https.html.ini
index 2101196fa2f..fe0d8cc157f 100644
--- a/tests/wpt/web-platform-tests/infrastructure/metadata/infrastructure/testdriver/set_permission.https.html.ini
+++ b/tests/wpt/web-platform-tests/infrastructure/metadata/infrastructure/testdriver/set_permission.https.html.ini
@@ -1,3 +1,8 @@
 [set_permission.https.html]
-  expected:
-    if product != "chrome": ERROR
+  [Grant Permission for one realm]
+    expected:
+      if product != "chrome": FAIL
+
+  [Deny Permission, omit one realm]
+    expected:
+      if product != "chrome": FAIL
diff --git a/tests/wpt/web-platform-tests/infrastructure/metadata/infrastructure/testdriver/virtual_authenticator.html.ini b/tests/wpt/web-platform-tests/infrastructure/metadata/infrastructure/testdriver/virtual_authenticator.html.ini
index 88c9bbd4799..c01ca2a7199 100644
--- a/tests/wpt/web-platform-tests/infrastructure/metadata/infrastructure/testdriver/virtual_authenticator.html.ini
+++ b/tests/wpt/web-platform-tests/infrastructure/metadata/infrastructure/testdriver/virtual_authenticator.html.ini
@@ -1,3 +1,28 @@
 [virtual_authenticator.html]
-  expected:
-    if product == "firefox" or product == "safari" or product == "epiphany" or product == "webkit": ERROR
+  [Can create an authenticator]
+    expected:
+      if product == "firefox" or product == "safari" or product == "epiphany" or product == "webkit": FAIL
+
+  [Can add a credential]
+    expected:
+      if product == "firefox" or product == "safari" or product == "epiphany" or product == "webkit": FAIL
+
+  [Can get the credentials]
+    expected:
+      if product == "firefox" or product == "safari" or product == "epiphany" or product == "webkit": FAIL
+
+  [Can remove a credential]
+    expected:
+      if product == "firefox" or product == "safari" or product == "epiphany" or product == "webkit": FAIL
+
+  [Can remove all credentials]
+    expected:
+      if product == "firefox" or product == "safari" or product == "epiphany" or product == "webkit": FAIL
+
+  [Can set user verified]
+    expected:
+      if product == "firefox" or product == "safari" or product == "epiphany" or product == "webkit": FAIL
+
+  [Can remove a virtual authenticator]
+    expected:
+      if product == "firefox" or product == "safari" or product == "epiphany" or product == "webkit": FAIL
diff --git a/tests/wpt/web-platform-tests/infrastructure/testdriver/actions/multiTouchPointsReleaseFirstPoint.html b/tests/wpt/web-platform-tests/infrastructure/testdriver/actions/multiTouchPointsReleaseFirstPoint.html
new file mode 100644
index 00000000000..f0d04dfda07
--- /dev/null
+++ b/tests/wpt/web-platform-tests/infrastructure/testdriver/actions/multiTouchPointsReleaseFirstPoint.html
@@ -0,0 +1,56 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>TestDriver actions: two touch points with one moving one pause</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/resources/testdriver.js"></script>
+<script src="/resources/testdriver-actions.js"></script>
+<script src="/resources/testdriver-vendor.js"></script>
+
+<style>
+div#test1{
+  position: fixed;
+  top: 0;
+  left: 0;
+  width: 100px;
+  height: 100px;
+  background-color: blue;
+}
+
+</style>
+
+<div id="test1">
+</div>
+
+<script>
+let event_type = [];
+let event_id = [];
+
+async_test(t => {
+  let test1 = document.getElementById("test1");
+  document.getElementById("test1").addEventListener("pointerdown",
+    e => {event_type.push(e.type); event_id.push(e.pointerId);});
+  document.getElementById("test1").addEventListener("pointerup",
+    e => {event_type.push(e.type); event_id.push(e.pointerId);});
+  document.getElementById("test1").addEventListener("pointermove",
+    e => {event_type.push(e.type); event_id.push(e.pointerId);});
+
+  let actions = new test_driver.Actions()
+      .addPointer("touchPointer1", "touch")
+      .addPointer("touchPointer2", "touch")
+      .pointerMove(0, 0, {origin: test1, sourceName: "touchPointer1"})
+      .pointerMove(10, 0, {origin: test1, sourceName: "touchPointer2"})
+      .pointerDown({sourceName: "touchPointer1"})
+      .pointerDown({sourceName: "touchPointer2"})
+      .pointerUp({sourceName: "touchPointer1"})
+      .pointerMove(10, 10, {origin: test1, sourceName: "touchPointer2"})
+      .pointerUp({sourceName: "touchPointer2"});
+
+  actions.send()
+    .then(t.step_func_done(() => {
+      assert_array_equals(event_type, ["pointerdown", "pointerdown", "pointerup", "pointermove", "pointerup"]);
+      assert_array_equals(event_id, [2, 3, 2, 3, 3]);
+    }))
+    .catch(e => t.step_func(() => assert_unreached("Actions sequence failed " + e)));
+});
+</script>
diff --git a/tests/wpt/web-platform-tests/infrastructure/testdriver/actions/multiTouchPointsReleaseSecondPoint.html b/tests/wpt/web-platform-tests/infrastructure/testdriver/actions/multiTouchPointsReleaseSecondPoint.html
new file mode 100644
index 00000000000..8426be0154b
--- /dev/null
+++ b/tests/wpt/web-platform-tests/infrastructure/testdriver/actions/multiTouchPointsReleaseSecondPoint.html
@@ -0,0 +1,56 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>TestDriver actions: two touch points with one moving one pause</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/resources/testdriver.js"></script>
+<script src="/resources/testdriver-actions.js"></script>
+<script src="/resources/testdriver-vendor.js"></script>
+
+<style>
+div#test1{
+  position: fixed;
+  top: 0;
+  left: 0;
+  width: 100px;
+  height: 100px;
+  background-color: blue;
+}
+
+</style>
+
+<div id="test1">
+</div>
+
+<script>
+let event_type = [];
+let event_id = [];
+
+async_test(t => {
+  let test1 = document.getElementById("test1");
+  document.getElementById("test1").addEventListener("pointerdown",
+    e => {event_type.push(e.type); event_id.push(e.pointerId);});
+  document.getElementById("test1").addEventListener("pointerup",
+    e => {event_type.push(e.type); event_id.push(e.pointerId);});
+  document.getElementById("test1").addEventListener("pointermove",
+    e => {event_type.push(e.type); event_id.push(e.pointerId);});
+
+  let actions = new test_driver.Actions()
+      .addPointer("touchPointer1", "touch")
+      .addPointer("touchPointer2", "touch")
+      .pointerMove(0, 0, {origin: test1, sourceName: "touchPointer1"})
+      .pointerMove(10, 0, {origin: test1, sourceName: "touchPointer2"})
+      .pointerDown({sourceName: "touchPointer1"})
+      .pointerDown({sourceName: "touchPointer2"})
+      .pointerMove(10, 10, {origin: test1, sourceName: "touchPointer1"})
+      .pointerUp({sourceName: "touchPointer2"})
+      .pointerUp({sourceName: "touchPointer1"});
+
+  actions.send()
+    .then(t.step_func_done(() => {
+      assert_array_equals(event_type, ["pointerdown", "pointerdown", "pointermove", "pointerup", "pointerup"]);
+      assert_array_equals(event_id, [2, 3, 2, 3, 2]);
+    }))
+    .catch(e => t.step_func(() => assert_unreached("Actions sequence failed " + e)));
+});
+</script>
diff --git a/tests/wpt/web-platform-tests/infrastructure/testdriver/virtual_authenticator.html b/tests/wpt/web-platform-tests/infrastructure/testdriver/virtual_authenticator.html
index 339e42665c7..204c95608b5 100644
--- a/tests/wpt/web-platform-tests/infrastructure/testdriver/virtual_authenticator.html
+++ b/tests/wpt/web-platform-tests/infrastructure/testdriver/virtual_authenticator.html
@@ -24,7 +24,7 @@ let credential = {
   isResidentCredential: false,
 };
 
-let authenticator_id;
+let authenticator_id = null;
 
 promise_test(async t => {
   authenticator_id = await test_driver.add_virtual_authenticator({
diff --git a/tests/wpt/web-platform-tests/interfaces/cookie-store.idl b/tests/wpt/web-platform-tests/interfaces/cookie-store.idl
index f6a413e54a2..3e1a90ab63f 100644
--- a/tests/wpt/web-platform-tests/interfaces/cookie-store.idl
+++ b/tests/wpt/web-platform-tests/interfaces/cookie-store.idl
@@ -19,6 +19,12 @@ interface CookieStore : EventTarget {
   Promise<void> delete(USVString name);
   Promise<void> delete(CookieStoreDeleteOptions options);
 
+  [Exposed=ServiceWorker]
+  Promise<void> subscribeToChanges(sequence<CookieStoreGetOptions> subscriptions);
+
+  [Exposed=ServiceWorker]
+  Promise<sequence<CookieStoreGetOptions>> getChangeSubscriptions();
+
   [Exposed=Window]
   attribute EventHandler onchange;
 };
@@ -71,7 +77,8 @@ dictionary CookieListItem {
 
 typedef sequence<CookieListItem> CookieList;
 
-[Exposed=Window, SecureContext]
+[Exposed=Window,
+ SecureContext]
 interface CookieChangeEvent : Event {
   constructor(DOMString type, optional CookieChangeEventInit eventInitDict = {});
   readonly attribute CookieList changed;
@@ -83,8 +90,8 @@ dictionary CookieChangeEventInit : EventInit {
   CookieList deleted;
 };
 
-[Exposed=ServiceWorker]
-interface ExtendableCookieChangeEvent : ExtendableEvent {
+[Exposed=ServiceWorker
+] interface ExtendableCookieChangeEvent : ExtendableEvent {
   constructor(DOMString type, optional ExtendableCookieChangeEventInit eventInitDict = {});
   readonly attribute CookieList changed;
   readonly attribute CookieList deleted;
@@ -95,13 +102,6 @@ dictionary ExtendableCookieChangeEventInit : ExtendableEventInit {
   CookieList deleted;
 };
 
-[Exposed=(ServiceWorker,Window), SecureContext]
-interface CookieStoreManager {
-  Promise<void> subscribe(sequence<CookieStoreGetOptions> subscriptions);
-  Promise<sequence<CookieStoreGetOptions>> getSubscriptions();
-  Promise<void> unsubscribe(sequence<CookieStoreGetOptions> subscriptions);
-};
-
 [SecureContext]
 partial interface Window {
   [Replaceable, SameObject] readonly attribute CookieStore cookieStore;
@@ -109,10 +109,6 @@ partial interface Window {
 
 partial interface ServiceWorkerGlobalScope {
   [Replaceable, SameObject] readonly attribute CookieStore cookieStore;
+
   attribute EventHandler oncookiechange;
 };
-
-[Exposed=(ServiceWorker,Window), SecureContext]
-partial interface ServiceWorkerRegistration {
-  readonly attribute CookieStoreManager cookies;
-};
diff --git a/tests/wpt/web-platform-tests/interfaces/feature-policy.idl b/tests/wpt/web-platform-tests/interfaces/feature-policy.idl
index 6f0d69fc378..f59f090769e 100644
--- a/tests/wpt/web-platform-tests/interfaces/feature-policy.idl
+++ b/tests/wpt/web-platform-tests/interfaces/feature-policy.idl
@@ -3,6 +3,7 @@
 // (https://github.com/tidoust/reffy-reports)
 // Source: Feature Policy (https://w3c.github.io/webappsec-feature-policy/)
 
+[Exposed=Window]
 interface FeaturePolicy {
   boolean allowsFeature(DOMString feature, optional DOMString origin);
   sequence<DOMString> features();
@@ -17,6 +18,7 @@ partial interface Document {
 partial interface HTMLIFrameElement {
     [SameObject] readonly attribute FeaturePolicy featurePolicy;
 };
+
 [Exposed=Window]
 interface FeaturePolicyViolationReportBody : ReportBody {
   readonly attribute DOMString featureId;
diff --git a/tests/wpt/web-platform-tests/interfaces/webrtc.idl b/tests/wpt/web-platform-tests/interfaces/webrtc.idl
index f24dabcf4f8..c21a5598e38 100644
--- a/tests/wpt/web-platform-tests/interfaces/webrtc.idl
+++ b/tests/wpt/web-platform-tests/interfaces/webrtc.idl
@@ -8,7 +8,6 @@ dictionary RTCConfiguration {
   RTCIceTransportPolicy iceTransportPolicy;
   RTCBundlePolicy bundlePolicy;
   RTCRtcpMuxPolicy rtcpMuxPolicy;
-  DOMString peerIdentity;
   sequence<RTCCertificate> certificates;
   [EnforceRange] octet iceCandidatePoolSize = 0;
 };
@@ -296,11 +295,9 @@ dictionary RTCRtpParameters {
 dictionary RTCRtpSendParameters : RTCRtpParameters {
   required DOMString transactionId;
   required sequence<RTCRtpEncodingParameters> encodings;
-  RTCDegradationPreference degradationPreference = "balanced";
 };
 
 dictionary RTCRtpReceiveParameters : RTCRtpParameters {
-  required sequence<RTCRtpDecodingParameters> encodings;
 };
 
 dictionary RTCRtpCodingParameters {
@@ -315,12 +312,6 @@ dictionary RTCRtpEncodingParameters : RTCRtpCodingParameters {
   double scaleResolutionDownBy;
 };
 
-enum RTCDegradationPreference {
-  "maintain-framerate",
-  "maintain-resolution",
-  "balanced"
-};
-
 dictionary RTCRtcpParameters {
   DOMString cname;
   boolean reducedSize;
@@ -615,14 +606,6 @@ enum RTCErrorDetailType {
   "data-channel-failure",
   "dtls-failure",
   "fingerprint-failure",
-  "idp-bad-script-failure",
-  "idp-execution-failure",
-  "idp-load-failure",
-  "idp-need-login",
-  "idp-timeout",
-  "idp-tls-failure",
-  "idp-token-expired",
-  "idp-token-invalid",
   "sctp-failure",
   "sdp-syntax-error",
   "hardware-encoder-not-available",
diff --git a/tests/wpt/web-platform-tests/interfaces/webxr.idl b/tests/wpt/web-platform-tests/interfaces/webxr.idl
index 6d684391faf..03603090748 100644
--- a/tests/wpt/web-platform-tests/interfaces/webxr.idl
+++ b/tests/wpt/web-platform-tests/interfaces/webxr.idl
@@ -193,7 +193,7 @@ interface XRWebGLLayer {
   readonly attribute boolean antialias;
   readonly attribute boolean ignoreDepthValues;
 
-  [SameObject] readonly attribute WebGLFramebuffer framebuffer;
+  [SameObject] readonly attribute WebGLFramebuffer? framebuffer;
   readonly attribute unsigned long framebufferWidth;
   readonly attribute unsigned long framebufferHeight;
 
diff --git a/tests/wpt/web-platform-tests/loading/lazyload/image-loading-lazy.tentative.html b/tests/wpt/web-platform-tests/loading/lazyload/image-loading-lazy.tentative.html
index 5920eb1882d..e593a58e563 100644
--- a/tests/wpt/web-platform-tests/loading/lazyload/image-loading-lazy.tentative.html
+++ b/tests/wpt/web-platform-tests/loading/lazyload/image-loading-lazy.tentative.html
@@ -5,6 +5,7 @@
   <link rel="help" href="https://github.com/scott-little/lazyload">
   <script src="/resources/testharness.js"></script>
   <script src="/resources/testharnessreport.js"></script>
+  <script src="common.js"></script>
 </head>
 
 <!--
@@ -24,12 +25,16 @@ Marked as tentative until https://github.com/whatwg/html/pull/3752 is landed.
 
   window.addEventListener("load", t.step_func(function() {
     assert_true(has_in_viewport_loaded, "The in_viewport element should have loaded before window.load().");
+    assert_true(document.getElementById("in_viewport").complete);
     assert_false(has_window_loaded, "The window.load() event should only fire once.");
     has_window_loaded = true;
     document.getElementById("below_viewport").scrollIntoView();
   }));
 
   const below_viewport_img_onload = t.step_func_done(function() {
+    assert_true(is_image_fully_loaded(
+                  document.getElementById("below_viewport"),
+                  document.getElementById("in_viewport")));
     assert_true(has_window_loaded, "The window.load() event should have fired before below_viewport loaded.");
   });
 </script>
diff --git a/tests/wpt/web-platform-tests/longtask-timing/buffered-flag.window.js b/tests/wpt/web-platform-tests/longtask-timing/buffered-flag.window.js
index dafce7ea3bb..f1ca54f5322 100644
--- a/tests/wpt/web-platform-tests/longtask-timing/buffered-flag.window.js
+++ b/tests/wpt/web-platform-tests/longtask-timing/buffered-flag.window.js
@@ -8,7 +8,7 @@ async_test(t => {
                     return;
                 assert_equals(entry.entryType, 'longtask');
                 assert_equals(entry.name, 'self');
-                assert_greater_than(longtask.duration, 50);
+                assert_greater_than(entry.duration, 50);
                 longtaskObserved = true;
             });
             assert_true(longtaskObserved, 'Did not observe buffered longtask.');
diff --git a/tests/wpt/web-platform-tests/media-source/mediasource-getvideoplaybackquality.html b/tests/wpt/web-platform-tests/media-source/mediasource-getvideoplaybackquality.html
index ec589430404..bce01733391 100644
--- a/tests/wpt/web-platform-tests/media-source/mediasource-getvideoplaybackquality.html
+++ b/tests/wpt/web-platform-tests/media-source/mediasource-getvideoplaybackquality.html
@@ -70,49 +70,6 @@
                   test.done();
               });
           }, "Test HTMLVideoElement.getVideoPlaybackQuality() with MediaSource API");
-
-
-          mediasource_testafterdataloaded(function(test, mediaElement, mediaSource, segmentInfo, sourceBuffer, mediaData)
-          {
-              var previousQuality = mediaElement.getVideoPlaybackQuality();
-              var timeUpdateCount = 0;
-              var startTime = 0;
-              mediaElement.addEventListener("timeupdate", test.step_func(function (e)
-              {
-                  var videoElement = e.target;
-                  var newQuality = videoElement.getVideoPlaybackQuality();
-                  var now = window.performance.now();
-
-                  assert_greater_than_equal(newQuality.totalFrameDelay, 0, "totalFrameDelay >= 0");
-                  assert_greater_than_equal(newQuality.totalFrameDelay, previousQuality.totalFrameDelay,
-                    "totalFrameDelay increases monotonically");
-                  assert_less_than(newQuality.totalFrameDelay, (now - startTime) / 1000,
-                    "totalFrameDelay does not exceed the time elapsed since playback started");
-
-                  previousQuality = newQuality;
-                  timeUpdateCount++;
-              }));
-
-              mediaElement.addEventListener('error', test.unreached_func("Unexpected event 'error'"));
-
-              sourceBuffer.appendBuffer(mediaData);
-              test.expectEvent(sourceBuffer, 'updateend', 'sourceBuffer');
-              test.waitForExpectedEvents(function()
-              {
-                  assert_false(sourceBuffer.updating, "updating");
-                  mediaSource.endOfStream();
-                  assert_less_than(mediaSource.duration, 10, "duration");
-                  startTime = window.performance.now();
-                  mediaElement.play().catch(test.unreached_func("Unexpected promise rejection"));
-                  test.expectEvent(mediaElement, 'ended', 'mediaElement');
-              });
-
-              test.waitForExpectedEvents(function()
-              {
-                  assert_greater_than(timeUpdateCount, 2, "timeUpdateCount");
-                  test.done();
-              });
-          }, "Test the totalFrameDelay attribute of HTMLVideoElement.getVideoPlaybackQuality() with MediaSource API");
         </script>
     </body>
 </html>
diff --git a/tests/wpt/web-platform-tests/portals/history/history-manipulation-inside-portal-with-subframes.html b/tests/wpt/web-platform-tests/portals/history/history-manipulation-inside-portal-with-subframes.html
index 8f69182f646..cb4c8d0f914 100644
--- a/tests/wpt/web-platform-tests/portals/history/history-manipulation-inside-portal-with-subframes.html
+++ b/tests/wpt/web-platform-tests/portals/history/history-manipulation-inside-portal-with-subframes.html
@@ -19,24 +19,24 @@
     assertInitialHistoryState();
     await runTestInPortal(portalSrc, 'testIFrameSrcInPortal');
     assertInitialHistoryState();
-  }, 'Setting iframe src navigates independently in a portal');
+  }, 'Setting iframe src navigates independently with replacement in a portal');
 
   promise_test(async () => {
     assertInitialHistoryState();
     await runTestInPortal(portalSrc, 'testCrossSiteIFrameSrcInPortal');
     assertInitialHistoryState();
-  }, 'Setting cross site iframe src navigates independently in a portal');
+  }, 'Setting cross site iframe src navigates independently with replacement in a portal');
 
   promise_test(async () => {
     assertInitialHistoryState();
     await runTestInPortal(portalSrc, 'testIFrameNavInPortal');
     assertInitialHistoryState();
-  }, 'iframe navigates itself independently in a portal');
+  }, 'iframe navigates itself independently with replacement in a portal');
 
   promise_test(async () => {
     assertInitialHistoryState();
     await runTestInPortal(portalSrc, 'testCrossSiteIFrameNavInPortal');
     assertInitialHistoryState();
-  }, 'Cross site iframe navigates itself independently in a portal');
+  }, 'Cross site iframe navigates itself independently with replacement in a portal');
 </script>
 </body>
diff --git a/tests/wpt/web-platform-tests/portals/history/history-manipulation-inside-portal.html b/tests/wpt/web-platform-tests/portals/history/history-manipulation-inside-portal.html
index 0fe88c4ea11..d19e153e51c 100644
--- a/tests/wpt/web-platform-tests/portals/history/history-manipulation-inside-portal.html
+++ b/tests/wpt/web-platform-tests/portals/history/history-manipulation-inside-portal.html
@@ -19,7 +19,7 @@
     assertInitialHistoryState();
     await runTestInPortal(portalSrc, 'testHistoryPushStateInPortal');
     assertInitialHistoryState();
-  }, 'history.pushState navigates independently in a portal');
+  }, 'history.pushState navigates independently with replacement in a portal');
 
   promise_test(async () => {
     assertInitialHistoryState();
@@ -31,7 +31,7 @@
     assertInitialHistoryState();
     await runTestInPortal(portalSrc, 'testLocationAssignInPortal');
     assertInitialHistoryState();
-  }, 'location.assign navigates independently in a portal');
+  }, 'location.assign navigates independently with replacement in a portal');
 
   promise_test(async () => {
     assertInitialHistoryState();
@@ -43,12 +43,12 @@
     assertInitialHistoryState();
     await runTestInPortal(portalSrc, 'testSetLocationHrefInPortal');
     assertInitialHistoryState();
-  }, 'Setting location.href navigates independently in a portal');
+  }, 'Setting location.href navigates independently with replacement in a portal');
 
   promise_test(async () => {
     assertInitialHistoryState();
     await runTestInPortal(portalSrc, 'testSyntheticAnchorClickInPortal');
     assertInitialHistoryState();
-  }, 'Synthetic anchor click navigates independently in a portal');
+  }, 'Synthetic anchor click navigates independently with replacement in a portal');
 </script>
 </body>
diff --git a/tests/wpt/web-platform-tests/portals/history/resources/portal-manipulate-history-with-subframes.sub.html b/tests/wpt/web-platform-tests/portals/history/resources/portal-manipulate-history-with-subframes.sub.html
index 4b3e8cf2d92..bab83b444fd 100644
--- a/tests/wpt/web-platform-tests/portals/history/resources/portal-manipulate-history-with-subframes.sub.html
+++ b/tests/wpt/web-platform-tests/portals/history/resources/portal-manipulate-history-with-subframes.sub.html
@@ -37,10 +37,10 @@
     frameHistoryLength =
         await messageFrameAndAwaitResponse(iframe, 'reportHistoryLength');
     assert(
-        history.length == 2, 'History length changed when iframe src set');
+        history.length == 1, 'History length unchanged when iframe src set');
     assert(
-        frameHistoryLength == 2,
-        'History length in iframe changed when iframe src set');
+        frameHistoryLength == 1,
+        'History length in iframe unchanged when iframe src set');
   }
 
   function testIFrameSrcInPortal() {
@@ -66,10 +66,10 @@
     let frameHistoryLength =
         await messageFrameAndAwaitResponse(iframe, 'reportHistoryLength');
     assert(
-        history.length == 2, 'History length changed when iframe navigates');
+        history.length == 1, 'History length unchanged when iframe navigates');
     assert(
-        frameHistoryLength == 2,
-        'History length in iframe changed when iframe navigates');
+        frameHistoryLength == 1,
+        'History length in iframe unchanged when iframe navigates');
   }
 
   function testIFrameNavInPortal() {
diff --git a/tests/wpt/web-platform-tests/portals/history/resources/portal-manipulate-history.html b/tests/wpt/web-platform-tests/portals/history/resources/portal-manipulate-history.html
index 591fd2193c1..3e25f0e6f23 100644
--- a/tests/wpt/web-platform-tests/portals/history/resources/portal-manipulate-history.html
+++ b/tests/wpt/web-platform-tests/portals/history/resources/portal-manipulate-history.html
@@ -8,7 +8,7 @@
 
     history.pushState('teststate', null, null);
 
-    assert(history.length == 2, 'History length changed');
+    assert(history.length == 1, 'History length unchanged');
     assert(history.state == 'teststate', 'Update state');
   }
 
@@ -27,7 +27,7 @@
     let initialLocation = location.href;
     location.assign('#test');
 
-    assert(history.length == 2, 'History length changed');
+    assert(history.length == 1, 'History length unchanged');
     assert(location.href != initialLocation, 'Update location');
   }
 
@@ -45,7 +45,7 @@
     let initialLocation = location.href;
     location.href = '#test';
 
-    assert(history.length == 2, 'History length changed');
+    assert(history.length == 1, 'History length unchanged');
     assert(location.href != initialLocation, 'Update location');
   }
 
@@ -59,7 +59,7 @@
 
     anchor.click();
 
-    assert(history.length == 2, 'History length changed');
+    assert(history.length == 1, 'History length unchanged');
     assert(location.href != initialLocation, 'Update location');
   }
 </script>
diff --git a/tests/wpt/web-platform-tests/resources/testharness.css.headers b/tests/wpt/web-platform-tests/resources/testharness.css.headers
deleted file mode 100644
index e828b629858..00000000000
--- a/tests/wpt/web-platform-tests/resources/testharness.css.headers
+++ /dev/null
@@ -1,2 +0,0 @@
-Content-Type: text/css;charset=utf-8
-Cache-Control: max-age=3600
diff --git a/tests/wpt/web-platform-tests/scroll-to-text-fragment/META.yml b/tests/wpt/web-platform-tests/scroll-to-text-fragment/META.yml
new file mode 100644
index 00000000000..13225f6f18f
--- /dev/null
+++ b/tests/wpt/web-platform-tests/scroll-to-text-fragment/META.yml
@@ -0,0 +1,4 @@
+spec: https://wicg.github.io/ScrollToTextFragment/
+suggested_reviewers:
+  - nburris
+  - bokan
diff --git a/tests/wpt/web-platform-tests/scroll-to-text-fragment/scroll-to-text-fragment-security.html b/tests/wpt/web-platform-tests/scroll-to-text-fragment/scroll-to-text-fragment-security.html
new file mode 100644
index 00000000000..e253fe962c6
--- /dev/null
+++ b/tests/wpt/web-platform-tests/scroll-to-text-fragment/scroll-to-text-fragment-security.html
@@ -0,0 +1,78 @@
+<!doctype html>
+<title>Navigating to a text fragment directive</title>
+<meta charset=utf-8>
+<link rel="help" href="https://wicg.github.io/ScrollToTextFragment/">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/resources/testdriver.js"></script>
+<script src="/resources/testdriver-vendor.js"></script>
+<script src="/common/utils.js"></script>
+<script src="stash.js"></script>
+<script>
+// Test security restriction for user activation
+for (let user_activation of [true, false]) {
+  promise_test(t => new Promise((resolve, reject) => {
+    let key = token();
+
+    if (user_activation) {
+      test_driver.bless('Open a URL with a text fragment directive', () => {
+        window.open(`scroll-to-text-fragment-target.html?key=${key}#:~:text=test`, '_blank', 'noopener');
+      });
+    } else {
+      window.open(`scroll-to-text-fragment-target.html?key=${key}#:~:text=test`, '_blank', 'noopener');
+    }
+
+    fetchResults(key, resolve, reject);
+  }).then(data => {
+    assert_equals(data.href.indexOf(':~:'), -1, 'Expected fragment directive to be stripped from the URL.');
+
+    if (user_activation) {
+      assert_equals(data.scrollPosition, 'text', 'Expected window.open() with a user activation to scroll to text.');
+    } else {
+      assert_equals(data.scrollPosition, 'top', 'Expected window.open() with no user activation to not activate text fragment directive.');
+    }
+  }), `Test that a text fragment directive requires a user activation (user_activation=${user_activation}).`);
+}
+
+// Test security restriction for no window opener
+for (let noopener of [true, false]) {
+  promise_test(t => new Promise((resolve, reject) => {
+    let key = token();
+
+    test_driver.bless('Open a URL with a text fragment directive', () => {
+      if (noopener) {
+        window.open(`scroll-to-text-fragment-target.html?key=${key}#:~:text=test`, '_blank', 'noopener');
+      } else {
+        window.open(`scroll-to-text-fragment-target.html?key=${key}#:~:text=test`, '_blank');
+      }
+    });
+
+    fetchResults(key, resolve, reject);
+  }).then(data => {
+    assert_equals(data.href.indexOf(':~:'), -1, 'Expected fragment directive to be stripped from the URL.');
+
+    if (noopener) {
+      assert_equals(data.scrollPosition, 'text', 'Expected window.open() with noopener to scroll to text.');
+    } else {
+      assert_equals(data.scrollPosition, 'top', 'Expected window.open() with opener to not activate text fragment directive.');
+    }
+  }), `Test that a text fragment directive is not activated when there is a window opener (noopener=${noopener}).`);
+}
+
+// Test security restriction for no activation in an iframe
+promise_test(t => new Promise((resolve, reject) => {
+  let key = token();
+
+  let frame = document.createElement('iframe');
+  document.body.appendChild(frame);
+
+  test_driver.bless('Navigate the iframe with a text fragment directive', () => {
+    frame.src = `scroll-to-text-fragment-target.html?key=${key}#:~:text=test`;
+  });
+
+  fetchResults(key, resolve, reject);
+}).then(data => {
+  assert_equals(data.href.indexOf(':~:'), -1, 'Expected fragment directive to be stripped from the URL.');
+  assert_equals(data.scrollPosition, 'top', 'Expected iframe navigation to not activate text fragment directive.');
+}), 'Test that a text fragment directive is not activated within an iframe.');
+</script>
diff --git a/tests/wpt/web-platform-tests/scroll-to-text-fragment/scroll-to-text-fragment-target.html b/tests/wpt/web-platform-tests/scroll-to-text-fragment/scroll-to-text-fragment-target.html
index 1595d8bff9e..0c59d8d8508 100644
--- a/tests/wpt/web-platform-tests/scroll-to-text-fragment/scroll-to-text-fragment-target.html
+++ b/tests/wpt/web-platform-tests/scroll-to-text-fragment/scroll-to-text-fragment-target.html
@@ -1,5 +1,6 @@
 <!doctype html>
 <title>Navigating to a text fragment anchor</title>
+<script src="stash.js"></script>
 <script>
 function isInView(element) {
   let rect = element.getBoundingClientRect();
@@ -8,8 +9,6 @@ function isInView(element) {
 }
 
 function checkScroll() {
-  let bc = new BroadcastChannel('scroll-to-text-fragment');
-
   let position = 'unknown';
   if (window.scrollY == 0)
     position = 'top';
@@ -30,9 +29,10 @@ function checkScroll() {
   else if (isInView(document.getElementById('horizontal-scroll')) && window.scrollX > 0)
     position = 'horizontal-scroll';
 
-  bc.postMessage({ scrollPosition: position, href: window.location.href });
-  bc.close();
-  window.close();
+  let results = { scrollPosition: position, href: window.location.href };
+
+  let key = (new URL(document.location)).searchParams.get("key");
+  stashResults(key, results);
 }
 </script>
 <style>
diff --git a/tests/wpt/web-platform-tests/scroll-to-text-fragment/scroll-to-text-fragment.html b/tests/wpt/web-platform-tests/scroll-to-text-fragment/scroll-to-text-fragment.html
index c0018eda03f..2a94033b8c9 100644
--- a/tests/wpt/web-platform-tests/scroll-to-text-fragment/scroll-to-text-fragment.html
+++ b/tests/wpt/web-platform-tests/scroll-to-text-fragment/scroll-to-text-fragment.html
@@ -7,6 +7,16 @@
 <script src="/resources/testharnessreport.js"></script>
 <script src="/resources/testdriver.js"></script>
 <script src="/resources/testdriver-vendor.js"></script>
+<script src="/common/utils.js"></script>
+<script src="stash.js"></script>
+<!--
+  This test suite performs scroll to text navigations to
+  scroll-to-text-fragment-target.html and then checks the results, which are
+  communicated back from the target page via the WPT Stash server (see stash.py).
+  This structure is necessary because scroll to text security restrictions
+  specifically restrict the navigator from being able to observe the result of
+  the navigation, e.g. the target page cannot have a window opener.
+-->
 <script>
 let test_cases = [
   // Test non-text fragment directives
@@ -217,82 +227,18 @@ let test_cases = [
 ];
 
 for (const test_case of test_cases) {
-  promise_test(t => new Promise(resolve => {
-    let channel = new BroadcastChannel('scroll-to-text-fragment');
-    channel.addEventListener("message", e => {
-      resolve(e.data);
-    }, {once: true});
+  promise_test(t => new Promise((resolve, reject) => {
+    let key = token();
 
     test_driver.bless('Open a URL with a text fragment directive', () => {
-      window.open('scroll-to-text-fragment-target.html' + test_case.fragment, '_blank', 'noopener');
+      window.open(`scroll-to-text-fragment-target.html?key=${key}${test_case.fragment}`, '_blank', 'noopener');
     });
+
+    fetchResults(key, resolve, reject);
   }).then(data => {
     assert_equals(data.href.indexOf(':~:'), -1, 'Expected fragment directive to be stripped from the URL.');
     assert_equals(data.scrollPosition, test_case.expect_position,
                   `Expected ${test_case.fragment} (${test_case.description}) to scroll to ${test_case.expect_position}.`);
   }), `Test navigation with fragment: ${test_case.description}.`);
 }
-
-promise_test(t => new Promise(resolve => {
-  let channel = new BroadcastChannel('scroll-to-text-fragment');
-  channel.addEventListener("message", e => {
-    assert_equals(e.data.href.indexOf(':~:'), -1, 'Expected fragment directive to be stripped from the URL.');
-
-    // The first navigation has no user activation.
-    assert_equals(e.data.scrollPosition, 'top', 'Expected window.open() with no user activation to not activate text fragment directive.');
-
-    // Now ensure that a navigation with a user activation does activate the text fragment directive.
-    test_driver.bless('Open a URL with a text fragment directive', () => {
-      window.open('scroll-to-text-fragment-target.html#:~:text=test', '_blank', 'noopener');
-    });
-    channel.addEventListener("message", e => {
-      resolve(e.data.scrollPosition);
-    }, {once: true});
-  }, {once: true});
-
-  window.open('scroll-to-text-fragment-target.html#:~:text=test', '_blank', 'noopener');
-}).then(scrollPosition => {
-  assert_equals(scrollPosition, 'text', 'Expected window.open() with a user activation to scroll to text.');
-}), 'Test that a text fragment directive is not activated without a user activation');
-
-promise_test(t => new Promise(resolve => {
-  let channel = new BroadcastChannel('scroll-to-text-fragment');
-  channel.addEventListener("message", e => {
-    assert_equals(e.data.href.indexOf(':~:'), -1, 'Expected fragment directive to be stripped from the URL.');
-
-    // The first navigation has an opener.
-    assert_equals(e.data.scrollPosition, 'top', 'Expected window.open() with opener to not activate text fragment directive.');
-
-    // Now ensure that a navigation with noopener does activate the text fragment directive.
-    test_driver.bless('Open a URL with a text fragment directive', () => {
-      window.open('scroll-to-text-fragment-target.html#:~:text=test', '_blank', 'noopener');
-    });
-    channel.addEventListener("message", e => {
-      resolve(e.data.scrollPosition);
-    }, {once: true});
-  }, {once: true});
-
-  test_driver.bless('Open a URL with a text fragment directive', () => {
-    window.open('scroll-to-text-fragment-target.html#:~:text=test', '_blank');
-  });
-}).then(scrollPosition => {
-  assert_equals(scrollPosition, 'text', 'Expected window.open() with noopener to scroll to text.');
-}), 'Test that a text fragment directive is not activated when there is a window opener.');
-
-promise_test(t => new Promise(resolve => {
-  let channel = new BroadcastChannel('scroll-to-text-fragment');
-  channel.addEventListener("message", e => {
-    resolve(e.data);
-  }, {once: true});
-
-  let frame = document.createElement('iframe');
-  document.body.appendChild(frame);
-
-  test_driver.bless('Navigate the iframe with a text fragment directive', () => {
-    frame.src = 'scroll-to-text-fragment-target.html#:~:text=test';
-  });
-}).then(data => {
-  assert_equals(data.href.indexOf(':~:'), -1, 'Expected fragment directive to be stripped from the URL.');
-  assert_equals(data.scrollPosition, 'top', 'Expected iframe navigation to not activate text fragment directive.');
-}), 'Test that a text fragment directive is not activated within an iframe.');
 </script>
diff --git a/tests/wpt/web-platform-tests/scroll-to-text-fragment/stash.js b/tests/wpt/web-platform-tests/scroll-to-text-fragment/stash.js
new file mode 100644
index 00000000000..b3d9ea8e93f
--- /dev/null
+++ b/tests/wpt/web-platform-tests/scroll-to-text-fragment/stash.js
@@ -0,0 +1,23 @@
+// Put test results into Stash
+function stashResults(key, results) {
+  fetch(`/scroll-to-text-fragment/stash.py?key=${key}`, {
+    method: 'POST',
+    body: JSON.stringify(results)
+  });
+}
+
+// Fetch test results from the Stash
+function fetchResults(key, resolve, reject) {
+  fetch(`/scroll-to-text-fragment/stash.py?key=${key}`).then(response => {
+    return response.text();
+  }).then(text => {
+    if (text) {
+      try {
+        const results = JSON.parse(text);
+        resolve(results);
+      } catch(e) {
+        reject();
+      }
+    }
+  });
+}
diff --git a/tests/wpt/web-platform-tests/scroll-to-text-fragment/stash.py b/tests/wpt/web-platform-tests/scroll-to-text-fragment/stash.py
new file mode 100644
index 00000000000..49567390e1e
--- /dev/null
+++ b/tests/wpt/web-platform-tests/scroll-to-text-fragment/stash.py
@@ -0,0 +1,17 @@
+import time
+
+def main(request, response):
+    key = request.GET.first("key")
+
+    if request.method == "POST":
+        # Received result data from target page
+        request.server.stash.put(key, request.body, '/scroll-to-text-fragment/')
+        return "ok"
+    else:
+        # Request for result data from test page
+        value = request.server.stash.take(key, '/scroll-to-text-fragment/')
+        # Poll until data is stashed
+        while value is None:
+          time.sleep(.1)
+          value = request.server.stash.take(key, '/scroll-to-text-fragment/')
+        return value
diff --git a/tests/wpt/web-platform-tests/streams/piping/general.any.js b/tests/wpt/web-platform-tests/streams/piping/general.any.js
index 250ebc3ece8..2b385c25916 100644
--- a/tests/wpt/web-platform-tests/streams/piping/general.any.js
+++ b/tests/wpt/web-platform-tests/streams/piping/general.any.js
@@ -188,3 +188,13 @@ for (const preventCancel of [true, false]) {
 
   }, `an undefined rejection from write should cause pipeTo() to reject when preventCancel is ${preventCancel}`);
 }
+
+promise_test(t => {
+  const rs = new ReadableStream();
+  const ws = new WritableStream();
+  return promise_rejects(t, new TypeError(), rs.pipeTo(ws, {
+    get preventAbort() {
+      ws.getWriter();
+    }
+  }), 'pipeTo should reject');
+}, 'pipeTo() should reject if an option getter grabs a writer');
diff --git a/tests/wpt/web-platform-tests/streams/piping/pipe-through.any.js b/tests/wpt/web-platform-tests/streams/piping/pipe-through.any.js
index 868899c7266..92d1394ca2f 100644
--- a/tests/wpt/web-platform-tests/streams/piping/pipe-through.any.js
+++ b/tests/wpt/web-platform-tests/streams/piping/pipe-through.any.js
@@ -253,3 +253,14 @@ promise_test(() => {
     assert_array_equals(writable.events, [], 'writable should not be aborted');
   });
 }, 'preventAbort should work');
+
+test(() => {
+  const rs = new ReadableStream();
+  const readable = new ReadableStream();
+  const writable = new WritableStream();
+  assert_throws(new TypeError(), () => rs.pipeThrough({readable, writable}, {
+    get preventAbort() {
+      writable.getWriter();
+    }
+  }), 'pipeThrough should throw');
+}, 'pipeThrough() should throw if an option getter grabs a writer');
diff --git a/tests/wpt/web-platform-tests/tools/ci/azure/affected_tests.yml b/tests/wpt/web-platform-tests/tools/ci/azure/affected_tests.yml
index 8076bc38698..7811ba95917 100644
--- a/tests/wpt/web-platform-tests/tools/ci/azure/affected_tests.yml
+++ b/tests/wpt/web-platform-tests/tools/ci/azure/affected_tests.yml
@@ -11,7 +11,6 @@ steps:
 - template: pip_install.yml
   parameters:
     packages: virtualenv
-- template: install_fonts.yml
 - template: install_certs.yml
 - template: install_safari.yml
 - template: update_hosts.yml
diff --git a/tests/wpt/web-platform-tests/tools/ci/taskcluster-run.py b/tests/wpt/web-platform-tests/tools/ci/taskcluster-run.py
index 8a60012d09b..ac5abc12b1f 100755
--- a/tests/wpt/web-platform-tests/tools/ci/taskcluster-run.py
+++ b/tests/wpt/web-platform-tests/tools/ci/taskcluster-run.py
@@ -9,7 +9,8 @@ import subprocess
 import sys
 
 browser_specific_args = {
-    "firefox": ["--install-browser"]
+    "firefox": ["--install-browser"],
+    "servo": ["--install-browser", "--processes=12"]
 }
 
 
@@ -67,6 +68,10 @@ def main(product, commit_range, wpt_args):
     ]
     wpt_args += browser_specific_args.get(product, [])
 
+    # Hack to run servo with one process only for wdspec
+    if product == "servo" and "--test-type=wdspec" in wpt_args:
+        wpt_args = [item for item in wpt_args if not item.startswith("--processes")]
+
     command = ["python", "./wpt", "run"] + wpt_args + [product]
 
     logger.info("Executing command: %s" % " ".join(command))
diff --git a/tests/wpt/web-platform-tests/tools/ci/tc/tasks/test.yml b/tests/wpt/web-platform-tests/tools/ci/tc/tasks/test.yml
index 6e5e1b5070a..767b558e5a2 100644
--- a/tests/wpt/web-platform-tests/tools/ci/tc/tasks/test.yml
+++ b/tests/wpt/web-platform-tests/tools/ci/tc/tasks/test.yml
@@ -4,7 +4,7 @@ components:
     workerType: ci
     schedulerId: taskcluster-github
     deadline: "24 hours"
-    image: harjgam/web-platform-tests:0.33
+    image: harjgam/web-platform-tests:0.34
     maxRunTime: 7200
     artifacts:
       public/results:
diff --git a/tests/wpt/web-platform-tests/tools/docker/Dockerfile b/tests/wpt/web-platform-tests/tools/docker/Dockerfile
index 3d41834cfb4..0a842de1ab8 100644
--- a/tests/wpt/web-platform-tests/tools/docker/Dockerfile
+++ b/tests/wpt/web-platform-tests/tools/docker/Dockerfile
@@ -15,8 +15,11 @@ RUN apt-get -qqy update \
     fluxbox \
     gdebi \
     git \
+    gstreamer1.0-plugins-bad \
+    libosmesa6-dev \
     libvirt-daemon-system \
     libvirt-clients \
+    libunwind8 \
     locales \
     openjdk-8-jre-headless \
     pulseaudio \
diff --git a/tests/wpt/web-platform-tests/tools/lint/lint.py b/tests/wpt/web-platform-tests/tools/lint/lint.py
index c7c0197213c..17fb988834a 100644
--- a/tests/wpt/web-platform-tests/tools/lint/lint.py
+++ b/tests/wpt/web-platform-tests/tools/lint/lint.py
@@ -484,10 +484,6 @@ def check_parsed(repo_root, path, f):
             if len(testharnessreport_nodes) > 1:
                 errors.append(rules.MultipleTestharnessReport.error(path))
 
-        testharnesscss_nodes = source_file.root.findall(".//{http://www.w3.org/1999/xhtml}link[@href='/resources/testharness.css']")
-        if testharnesscss_nodes:
-            errors.append(rules.PresentTestharnessCSS.error(path))
-
         for element in source_file.variant_nodes:
             if "content" not in element.attrib:
                 errors.append(rules.VariantMissing.error(path))
diff --git a/tests/wpt/web-platform-tests/tools/lint/rules.py b/tests/wpt/web-platform-tests/tools/lint/rules.py
index 587028d6c5f..b3d125f8dd6 100644
--- a/tests/wpt/web-platform-tests/tools/lint/rules.py
+++ b/tests/wpt/web-platform-tests/tools/lint/rules.py
@@ -199,11 +199,6 @@ class MultipleTestharnessReport(Rule):
     description = "More than one `<script src='/resources/testharnessreport.js'>`"
 
 
-class PresentTestharnessCSS(Rule):
-    name = "PRESENT-TESTHARNESSCSS"
-    description = "Explicit link to testharness.css present"
-
-
 class VariantMissing(Rule):
     name = "VARIANT-MISSING"
     description = collapse("""
diff --git a/tests/wpt/web-platform-tests/tools/lint/tests/test_file_lints.py b/tests/wpt/web-platform-tests/tools/lint/tests/test_file_lints.py
index 8094d6d40a5..08c09b6b095 100644
--- a/tests/wpt/web-platform-tests/tools/lint/tests/test_file_lints.py
+++ b/tests/wpt/web-platform-tests/tools/lint/tests/test_file_lints.py
@@ -410,29 +410,6 @@ def test_missing_testdriver_vendor():
             ]
 
 
-def test_present_testharnesscss():
-    code = b"""
-<html xmlns="http://www.w3.org/1999/xhtml">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<link rel="stylesheet" href="/resources/testharness.css"/>
-</html>
-"""
-    error_map = check_with_files(code)
-
-    for (filename, (errors, kind)) in error_map.items():
-        check_errors(errors)
-
-        if kind in ["web-lax", "web-strict"]:
-            assert errors == [
-                ("PRESENT-TESTHARNESSCSS", "Explicit link to testharness.css present", filename, None),
-            ]
-        elif kind == "python":
-            assert errors == [
-                ("PARSE-FAILED", "Unable to parse file", filename, 2),
-            ]
-
-
 def test_testharness_path():
     code = b"""\
 <html xmlns="http://www.w3.org/1999/xhtml">
diff --git a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/browsers/servo.py b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/browsers/servo.py
index d3ed4b3fb1d..bb1f172cd5e 100644
--- a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/browsers/servo.py
+++ b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/browsers/servo.py
@@ -46,6 +46,7 @@ def executor_kwargs(test_type, server_config, cache_manager, run_info_data,
     rv["pause_after_test"] = kwargs["pause_after_test"]
     if test_type == "wdspec":
         rv["capabilities"] = {}
+        rv["webdriver_binary"] = kwargs["binary"]
     return rv
 
 
diff --git a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/base.py b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/base.py
index 9e302107118..9741f764540 100644
--- a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/base.py
+++ b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/base.py
@@ -148,7 +148,7 @@ class TimedRunner(object):
         executor = threading.Thread(target=self.run_func)
         executor.start()
 
-        # Add twice the timeout multiplier since the called function is expected to
+        # Add twice the extra timeout since the called function is expected to
         # wait at least self.timeout + self.extra_timeout and this gives some leeway
         timeout = self.timeout + 2 * self.extra_timeout if self.timeout else None
         finished = self.result_flag.wait(timeout)
@@ -654,6 +654,8 @@ class CallbackHandler(object):
     WebDriver. Things that are more different to WebDriver may need to create a
     fully custom implementation."""
 
+    unimplemented_exc = (NotImplementedError,)
+
     def __init__(self, logger, protocol, test_window):
         self.protocol = protocol
         self.test_window = test_window
@@ -700,6 +702,9 @@ class CallbackHandler(object):
             raise ValueError("Unknown action %s" % action)
         try:
             result = action_handler(payload)
+        except self.unimplemented_exc:
+            self.logger.warning("Action %s not implemented" % action)
+            self._send_message("complete", "error", "Action %s not implemented" % action)
         except Exception:
             self.logger.warning("Action %s failed" % action)
             self.logger.warning(traceback.format_exc())
diff --git a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executormarionette.py b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executormarionette.py
index b165e8cd93d..2f38e0168a4 100644
--- a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executormarionette.py
+++ b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executormarionette.py
@@ -31,7 +31,10 @@ from .protocol import (ActionSequenceProtocolPart,
                        ClickProtocolPart,
                        SendKeysProtocolPart,
                        TestDriverProtocolPart,
-                       CoverageProtocolPart)
+                       CoverageProtocolPart,
+                       GenerateTestReportProtocolPart,
+                       VirtualAuthenticatorProtocolPart,
+                       SetPermissionProtocolPart)
 from ..testrunner import Stop
 from ..webdriver_server import GeckoDriverServer
 
@@ -481,6 +484,44 @@ class MarionetteCoverageProtocolPart(CoverageProtocolPart):
                 # This usually happens if the process crashed
                 pass
 
+class MarionetteGenerateTestReportProtocolPart(GenerateTestReportProtocolPart):
+    def setup(self):
+        self.marionette = self.parent.marionette
+
+    def generate_test_report(self, config):
+        raise NotImplementedError("generate_test_report not yet implemented")
+
+class MarionetteVirtualAuthenticatorProtocolPart(VirtualAuthenticatorProtocolPart):
+    def setup(self):
+        self.marionette = self.parent.marionette
+
+    def add_virtual_authenticator(self, config):
+        raise NotImplementedError("add_virtual_authenticator not yet implemented")
+
+    def remove_virtual_authenticator(self, authenticator_id):
+        raise NotImplementedError("remove_virtual_authenticator not yet implemented")
+
+    def add_credential(self, authenticator_id, credential):
+        raise NotImplementedError("add_credential not yet implemented")
+
+    def get_credentials(self, authenticator_id):
+        raise NotImplementedError("get_credentials not yet implemented")
+
+    def remove_credential(self, authenticator_id, credential_id):
+        raise NotImplementedError("remove_credential not yet implemented")
+
+    def remove_all_credentials(self, authenticator_id):
+        raise NotImplementedError("remove_all_credentials not yet implemented")
+
+    def set_user_verified(self, authenticator_id, uv):
+        raise NotImplementedError("set_user_verified not yet implemented")
+
+class MarionetteSetPermissionProtocolPart(SetPermissionProtocolPart):
+    def setup(self):
+        self.marionette = self.parent.marionette
+
+    def set_permission(self, name, state, one_realm):
+        raise NotImplementedError("set_permission not yet implemented")
 
 class MarionetteProtocol(Protocol):
     implements = [MarionetteBaseProtocolPart,
@@ -493,7 +534,10 @@ class MarionetteProtocol(Protocol):
                   MarionetteActionSequenceProtocolPart,
                   MarionetteTestDriverProtocolPart,
                   MarionetteAssertsProtocolPart,
-                  MarionetteCoverageProtocolPart]
+                  MarionetteCoverageProtocolPart,
+                  MarionetteGenerateTestReportProtocolPart,
+                  MarionetteVirtualAuthenticatorProtocolPart,
+                  MarionetteSetPermissionProtocolPart]
 
     def __init__(self, executor, browser, capabilities=None, timeout_multiplier=1, e10s=True, ccov=False):
         do_delayed_imports()
diff --git a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py
index 221f48a3ea9..fa5cfa3c1c5 100644
--- a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py
+++ b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py
@@ -31,6 +31,10 @@ import webdriver as client
 here = os.path.join(os.path.split(__file__)[0])
 
 
+class WebDriverCallbackHandler(CallbackHandler):
+    unimplemented_exc = (NotImplementedError, client.UnknownCommandException)
+
+
 class WebDriverBaseProtocolPart(BaseProtocolPart):
     def setup(self):
         self.webdriver = self.parent.webdriver
@@ -376,7 +380,7 @@ class WebDriverTestharnessExecutor(TestharnessExecutor):
                                                            parent_window,
                                                            timeout=5*self.timeout_multiplier)
         self.protocol.base.set_window(test_window)
-        handler = CallbackHandler(self.logger, protocol, test_window)
+        handler = WebDriverCallbackHandler(self.logger, protocol, test_window)
         protocol.webdriver.url = url
 
         if not self.supports_eager_pageload:
diff --git a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/testdriver-extra.js b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/testdriver-extra.js
index 745421f59bb..5001b004f2e 100644
--- a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/testdriver-extra.js
+++ b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/testdriver-extra.js
@@ -19,7 +19,7 @@
             result = JSON.parse(data.message).result
             pending_resolve(result);
         } else {
-            pending_reject();
+            pending_reject(`${data.status}: ${data.message}`);
         }
     });
 
diff --git a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/testrunner.py b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/testrunner.py
index f1b1faa4498..7b6bf57d159 100644
--- a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/testrunner.py
+++ b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/testrunner.py
@@ -574,12 +574,16 @@ class TestRunnerManager(threading.Thread):
             self.timer.start()
 
     def _timeout(self):
+        # This is executed in a different thread (threading.Timer).
         self.logger.info("Got timeout in harness")
         test = self.state.test
-        self.test_ended(test,
-                        (test.result_cls("EXTERNAL-TIMEOUT",
-                                         "TestRunner hit external timeout "
-                                         "(this may indicate a hang)"), []))
+        self.inject_message(
+            "test_ended",
+            test,
+            (test.result_cls("EXTERNAL-TIMEOUT",
+                             "TestRunner hit external timeout "
+                             "(this may indicate a hang)"), []),
+        )
 
     def test_ended(self, test, results):
         """Handle the end of a test.
@@ -587,9 +591,15 @@ class TestRunnerManager(threading.Thread):
         Output the result of each subtest, and the result of the overall
         harness to the logs.
         """
-        assert isinstance(self.state, RunnerManagerState.running)
-        assert test == self.state.test
-        self.timer.cancel()
+        if ((not isinstance(self.state, RunnerManagerState.running)) or
+            (test != self.state.test)):
+            # Due to inherent race conditions in EXTERNAL-TIMEOUT, we might
+            # receive multiple test_ended for a test (e.g. from both Executor
+            # and TestRunner), in which case we ignore the duplicate message.
+            self.logger.error("Received unexpected test_ended for %s" % test)
+            return
+        if self.timer is not None:
+            self.timer.cancel()
         # Write the result of each subtest
         file_result, test_results = results
         subtest_unexpected = False
@@ -760,8 +770,13 @@ class TestRunnerManager(threading.Thread):
         return RunnerManagerState.stop()
 
     def send_message(self, command, *args):
+        """Send a message to the remote queue (to Executor)."""
         self.remote_queue.put((command, args))
 
+    def inject_message(self, command, *args):
+        """Inject a message to the command queue (from Executor)."""
+        self.command_queue.put((command, args))
+
     def cleanup(self):
         self.logger.debug("TestRunnerManager cleanup")
         if self.browser:
diff --git a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/tests/__init__.py b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/tests/__init__.py
index e69de29bb2d..fbde873198f 100644
--- a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/tests/__init__.py
+++ b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/tests/__init__.py
@@ -0,0 +1,7 @@
+import os
+import sys
+
+here = os.path.abspath(os.path.split(__file__)[0])
+sys.path.insert(0, os.path.join(here, os.pardir, os.pardir, os.pardir))
+
+import localpaths as _localpaths  # noqa: F401
diff --git a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/wpttest.py b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/wpttest.py
index 19e839d21bc..58892098967 100644
--- a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/wpttest.py
+++ b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/wpttest.py
@@ -164,8 +164,14 @@ class Test(object):
         self.environment = {"protocol": protocol, "prefs": self.prefs}
 
     def __eq__(self, other):
+        if not isinstance(other, Test):
+            return False
         return self.id == other.id
 
+    # Python 2 does not have this delegation, while Python 3 does.
+    def __ne__(self, other):
+        return not self.__eq__(other)
+
     def update_metadata(self, metadata=None):
         if metadata is None:
             metadata = {}
diff --git a/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-Element-setAttribute.tentative.html b/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-Element-setAttribute.tentative.html
index 1d6f3f6fe62..2639e16ea08 100644
--- a/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-Element-setAttribute.tentative.html
+++ b/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-Element-setAttribute.tentative.html
@@ -21,7 +21,8 @@
 
   scriptURLTestCases.forEach(c => {
     test(t => {
-      assert_element_accepts_trusted_script_url_explicit_set(window, c, t, c[0], c[1], RESULTS.SCRIPTURL);
+      assert_element_accepts_trusted_script_url_explicit_set(window,
+          c[0] + "-" + c[1], t, c[0], c[1], RESULTS.SCRIPTURL);
       assert_throws_no_trusted_type_explicit_set(c[0], c[1], 'A string');
       assert_throws_no_trusted_type_explicit_set(c[0], c[1], null);
       assert_throws_no_trusted_type_explicit_set(c[0], c[1], nullPolicy.createScript('script'));
@@ -35,7 +36,7 @@
 
   HTMLTestCases.forEach(c => {
     test(t => {
-      assert_element_accepts_trusted_html_explicit_set(window, c, t, c[0], c[1], RESULTS.HTML);
+      assert_element_accepts_trusted_html_explicit_set(window, c[0] + "-" + c[1], t, c[0], c[1], RESULTS.HTML);
       assert_throws_no_trusted_type_explicit_set(c[0], c[1], 'A string');
       assert_throws_no_trusted_type_explicit_set(c[0], c[1], null);
       assert_throws_no_trusted_type_explicit_set(c[0], c[1], nullPolicy.createScript('script'));
@@ -49,7 +50,7 @@
 
   ScriptTestCases.forEach(c => {
     test(t => {
-      assert_element_accepts_trusted_script_explicit_set(window, c, t, c[0], c[1], RESULTS.SCRIPT);
+      assert_element_accepts_trusted_script_explicit_set(window, c[0] + "-" + c[1], t, c[0], c[1], RESULTS.SCRIPT);
       assert_throws_no_trusted_type_explicit_set(c[0], c[1], 'A string');
       assert_throws_no_trusted_type_explicit_set(c[0], c[1], null);
     }, c[0] + "." + c[1] + " accepts only TrustedScript");
diff --git a/tests/wpt/web-platform-tests/trusted-types/trusted-types-createHTMLDocument.tentative.html b/tests/wpt/web-platform-tests/trusted-types/trusted-types-createHTMLDocument.tentative.html
index df094a8d5bc..6ab5f42d5ff 100644
--- a/tests/wpt/web-platform-tests/trusted-types/trusted-types-createHTMLDocument.tentative.html
+++ b/tests/wpt/web-platform-tests/trusted-types/trusted-types-createHTMLDocument.tentative.html
@@ -2,7 +2,7 @@
 <head>
   <script src="/resources/testharness.js"></script>
   <script src="/resources/testharnessreport.js"></script>
-  <meta http-equiv="Content-Security-Policy" content="trusted-types *">
+  <meta http-equiv="Content-Security-Policy" content="trusted-types * 'allow-duplicates'">
 </head>
 <body>
 <script>
diff --git a/tests/wpt/web-platform-tests/trusted-types/trusted-types-duplicate-names.tentative.html b/tests/wpt/web-platform-tests/trusted-types/trusted-types-duplicate-names.tentative.html
index e780a3d26ad..fb808246ac8 100644
--- a/tests/wpt/web-platform-tests/trusted-types/trusted-types-duplicate-names.tentative.html
+++ b/tests/wpt/web-platform-tests/trusted-types/trusted-types-duplicate-names.tentative.html
@@ -2,14 +2,24 @@
 <head>
   <script src="/resources/testharness.js"></script>
   <script src="/resources/testharnessreport.js"></script>
-  <meta http-equiv="Content-Security-Policy" content="trusted-types *">
+  <meta http-equiv="Content-Security-Policy"
+        content="trusted-types 'allow-duplicates' duplicatename default">
 </head>
 <body>
 <script>
 test(t => {
   // We expect neither of these to throw.
-  trustedTypes.createPolicy("duplicatename", {});
-  trustedTypes.createPolicy("duplicatename", {});
+  let a = trustedTypes.createPolicy("duplicatename", { createHTML: _ => "a" });
+  let b = trustedTypes.createPolicy("duplicatename", { createHTML: _ => "b" });
+
+  // Both should have worked. They should still be separate functions.
+  assert_not_equals(a, b);
+  assert_equals("" + a.createHTML(""), "a");
+  assert_equals("" + b.createHTML(""), "b");
+
+  let def = trustedTypes.createPolicy("default", {});
+  assert_throws(new TypeError(),
+                _ => trustedTypes.createPolicy("default", {}));
 }, "policy - duplicate names");
 </script>
 </body>
diff --git a/tests/wpt/web-platform-tests/webdriver/tests/new_session/default_values.py b/tests/wpt/web-platform-tests/webdriver/tests/new_session/default_values.py
index 61816812eb1..abd4a5a64c5 100644
--- a/tests/wpt/web-platform-tests/webdriver/tests/new_session/default_values.py
+++ b/tests/wpt/web-platform-tests/webdriver/tests/new_session/default_values.py
@@ -44,12 +44,3 @@ def test_ignore_non_spec_fields_in_capabilities(new_session, add_browser_capabil
     }})
     value = assert_success(response)
     assert value["capabilities"]["pageLoadStrategy"] == "normal"
-
-
-def test_valid_but_unmatchable_key(new_session, add_browser_capabilities):
-    response, _ = new_session({"capabilities": {"firstMatch": [
-        add_browser_capabilities({"pageLoadStrategy": "eager", "foo:unmatchable": True}),
-        {"pageLoadStrategy": "none"},
-    ]}})
-    value = assert_success(response)
-    assert value["capabilities"]["pageLoadStrategy"] == "none"
diff --git a/tests/wpt/web-platform-tests/webrtc/RTCPeerConnection-setRemoteDescription-rollback.html b/tests/wpt/web-platform-tests/webrtc/RTCPeerConnection-setRemoteDescription-rollback.html
index 342e325dad2..0312dc415b0 100644
--- a/tests/wpt/web-platform-tests/webrtc/RTCPeerConnection-setRemoteDescription-rollback.html
+++ b/tests/wpt/web-platform-tests/webrtc/RTCPeerConnection-setRemoteDescription-rollback.html
@@ -538,4 +538,17 @@
 
   }, "rollback of a remote offer with stream changes");
 
+  promise_test(async t => {
+    const pc1 = new RTCPeerConnection();
+    t.add_cleanup(() => pc1.close());
+    const pc2 = new RTCPeerConnection();
+    t.add_cleanup(() => pc2.close());
+    pc2.addTransceiver('audio');
+    const offer = await pc2.createOffer();
+    await pc1.setRemoteDescription(offer);
+    const [transceiver] = pc1.getTransceivers();
+    pc1.setRemoteDescription({type:'rollback'});
+    pc1.removeTrack(transceiver.sender);
+  }, 'removeTrack() with a sender being rolled back does not crash or throw');
+
 </script>
diff --git a/tests/wpt/web-platform-tests/webxr/xrInputSource_gamepad_disconnect.https.html b/tests/wpt/web-platform-tests/webxr/gamepads-module/xrInputSource_gamepad_disconnect.https.html
similarity index 98%
rename from tests/wpt/web-platform-tests/webxr/xrInputSource_gamepad_disconnect.https.html
rename to tests/wpt/web-platform-tests/webxr/gamepads-module/xrInputSource_gamepad_disconnect.https.html
index 66faf869964..7b8ff4a59c8 100644
--- a/tests/wpt/web-platform-tests/webxr/xrInputSource_gamepad_disconnect.https.html
+++ b/tests/wpt/web-platform-tests/webxr/gamepads-module/xrInputSource_gamepad_disconnect.https.html
@@ -1,8 +1,8 @@
 <!DOCTYPE html>
 <script src="/resources/testharness.js"></script>
 <script src="/resources/testharnessreport.js"></script>
-<script src="resources/webxr_util.js"></script>
-<script src="resources/webxr_test_constants.js"></script>
+<script src="../resources/webxr_util.js"></script>
+<script src="../resources/webxr_test_constants.js"></script>
 <canvas id="webgl-canvas"></canvas>
 
 <script>
diff --git a/tests/wpt/web-platform-tests/webxr/xrInputSource_gamepad_input_registered.https.html b/tests/wpt/web-platform-tests/webxr/gamepads-module/xrInputSource_gamepad_input_registered.https.html
similarity index 97%
rename from tests/wpt/web-platform-tests/webxr/xrInputSource_gamepad_input_registered.https.html
rename to tests/wpt/web-platform-tests/webxr/gamepads-module/xrInputSource_gamepad_input_registered.https.html
index cb1ce7780b4..038e28dcffb 100644
--- a/tests/wpt/web-platform-tests/webxr/xrInputSource_gamepad_input_registered.https.html
+++ b/tests/wpt/web-platform-tests/webxr/gamepads-module/xrInputSource_gamepad_input_registered.https.html
@@ -1,8 +1,8 @@
 <!DOCTYPE html>
 <script src="/resources/testharness.js"></script>
 <script src="/resources/testharnessreport.js"></script>
-<script src="resources/webxr_util.js"></script>
-<script src="resources/webxr_test_constants.js"></script>
+<script src="../resources/webxr_util.js"></script>
+<script src="../resources/webxr_test_constants.js"></script>
 <canvas id="webgl-canvas"></canvas>
 
 <script>
diff --git a/tests/wpt/web-platform-tests/webxr/xrRay_constructor.https.html b/tests/wpt/web-platform-tests/webxr/hit-test/xrRay_constructor.https.html
similarity index 97%
rename from tests/wpt/web-platform-tests/webxr/xrRay_constructor.https.html
rename to tests/wpt/web-platform-tests/webxr/hit-test/xrRay_constructor.https.html
index b955db4509c..08f20142e38 100644
--- a/tests/wpt/web-platform-tests/webxr/xrRay_constructor.https.html
+++ b/tests/wpt/web-platform-tests/webxr/hit-test/xrRay_constructor.https.html
@@ -1,8 +1,8 @@
 <!DOCTYPE html>
 <script src="/resources/testharness.js"></script>
 <script src="/resources/testharnessreport.js"></script>
-<script src="resources/webxr_test_constants.js"></script>
-<script src="resources/webxr_test_asserts.js"></script>
+<script src="../resources/webxr_test_constants.js"></script>
+<script src="../resources/webxr_test_asserts.js"></script>
 <script>
 
 let constructor_test_name = "XRRay constructors work";
diff --git a/tests/wpt/web-platform-tests/webxr/xrRay_matrix.https.html b/tests/wpt/web-platform-tests/webxr/hit-test/xrRay_matrix.https.html
similarity index 95%
rename from tests/wpt/web-platform-tests/webxr/xrRay_matrix.https.html
rename to tests/wpt/web-platform-tests/webxr/hit-test/xrRay_matrix.https.html
index 83a1050d6b1..77f134a75ff 100644
--- a/tests/wpt/web-platform-tests/webxr/xrRay_matrix.https.html
+++ b/tests/wpt/web-platform-tests/webxr/hit-test/xrRay_matrix.https.html
@@ -1,9 +1,9 @@
 <!DOCTYPE html>
 <script src="/resources/testharness.js"></script>
 <script src="/resources/testharnessreport.js"></script>
-<script src="resources/webxr_test_constants.js"></script>
-<script src="resources/webxr_test_asserts.js"></script>
-<script src="resources/webxr_math_utils.js"></script>
+<script src="../resources/webxr_test_constants.js"></script>
+<script src="../resources/webxr_test_asserts.js"></script>
+<script src="../resources/webxr_math_utils.js"></script>
 <script>
 
 let matrix_tests_name = "XRRay matrix works";