diff --git a/tests/wpt/metadata/MANIFEST.json b/tests/wpt/metadata/MANIFEST.json
index a013d0cfa42..3fa797a8c61 100644
--- a/tests/wpt/metadata/MANIFEST.json
+++ b/tests/wpt/metadata/MANIFEST.json
@@ -12163,42 +12163,6 @@
      {}
     ]
    ],
-   "html/browsers/the-window-object/the-windowproxy-object/test-window-proxy-locationbar-manual.html": [
-    [
-     "html/browsers/the-window-object/the-windowproxy-object/test-window-proxy-locationbar-manual.html",
-     {}
-    ]
-   ],
-   "html/browsers/the-window-object/the-windowproxy-object/test-window-proxy-menubar-manual.html": [
-    [
-     "html/browsers/the-window-object/the-windowproxy-object/test-window-proxy-menubar-manual.html",
-     {}
-    ]
-   ],
-   "html/browsers/the-window-object/the-windowproxy-object/test-window-proxy-personalbar-manual.html": [
-    [
-     "html/browsers/the-window-object/the-windowproxy-object/test-window-proxy-personalbar-manual.html",
-     {}
-    ]
-   ],
-   "html/browsers/the-window-object/the-windowproxy-object/test-window-proxy-scrollbars-manual.html": [
-    [
-     "html/browsers/the-window-object/the-windowproxy-object/test-window-proxy-scrollbars-manual.html",
-     {}
-    ]
-   ],
-   "html/browsers/the-window-object/the-windowproxy-object/test-window-proxy-statusbar-manual.html": [
-    [
-     "html/browsers/the-window-object/the-windowproxy-object/test-window-proxy-statusbar-manual.html",
-     {}
-    ]
-   ],
-   "html/browsers/the-window-object/the-windowproxy-object/test-window-proxy-toolbar-manual.html": [
-    [
-     "html/browsers/the-window-object/the-windowproxy-object/test-window-proxy-toolbar-manual.html",
-     {}
-    ]
-   ],
    "html/browsers/windows/noreferrer-cross-origin-close-manual.sub.html": [
     [
      "html/browsers/windows/noreferrer-cross-origin-close-manual.sub.html",
@@ -19605,6 +19569,18 @@
      {}
     ]
    ],
+   "animation-worklet/worklet-animation-with-non-ascii-name.https.html": [
+    [
+     "animation-worklet/worklet-animation-with-non-ascii-name.https.html",
+     [
+      [
+       "/animation-worklet/worklet-animation-with-non-ascii-name-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
    "animation-worklet/worklet-animation-with-scroll-timeline-and-display-none.https.html": [
     [
      "animation-worklet/worklet-animation-with-scroll-timeline-and-display-none.https.html",
@@ -193565,6 +193541,30 @@
      {}
     ]
    ],
+   "html/rendering/non-replaced-elements/tables/table-border-3q.html": [
+    [
+     "html/rendering/non-replaced-elements/tables/table-border-3q.html",
+     [
+      [
+       "/html/rendering/non-replaced-elements/tables/table-border-3-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "html/rendering/non-replaced-elements/tables/table-border-3s.html": [
+    [
+     "html/rendering/non-replaced-elements/tables/table-border-3s.html",
+     [
+      [
+       "/html/rendering/non-replaced-elements/tables/table-border-3-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
    "html/rendering/non-replaced-elements/tables/table-cell-width-s.html": [
     [
      "html/rendering/non-replaced-elements/tables/table-cell-width-s.html",
@@ -195949,6 +195949,18 @@
      {}
     ]
    ],
+   "mathml/presentation-markup/fractions/frac-linethickness-004.html": [
+    [
+     "mathml/presentation-markup/fractions/frac-linethickness-004.html",
+     [
+      [
+       "/mathml/presentation-markup/fractions/frac-linethickness-004-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
    "mathml/presentation-markup/fractions/frac-mrow-001.html": [
     [
      "mathml/presentation-markup/fractions/frac-mrow-001.html",
@@ -197857,6 +197869,90 @@
      {}
     ]
    ],
+   "svg/text/reftests/text-text-anchor-001.svg": [
+    [
+     "svg/text/reftests/text-text-anchor-001.svg",
+     [
+      [
+       "/svg/text/reftests/text-text-anchor-001-ref.svg",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "svg/text/reftests/text-text-anchor-002.svg": [
+    [
+     "svg/text/reftests/text-text-anchor-002.svg",
+     [
+      [
+       "/svg/text/reftests/text-text-anchor-002-ref.svg",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "svg/text/reftests/text-text-anchor-003.svg": [
+    [
+     "svg/text/reftests/text-text-anchor-003.svg",
+     [
+      [
+       "/svg/text/reftests/text-text-anchor-003-ref.svg",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "svg/text/reftests/text-text-anchor-102.svg": [
+    [
+     "svg/text/reftests/text-text-anchor-102.svg",
+     [
+      [
+       "/svg/text/reftests/text-text-anchor-102-ref.svg",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "svg/text/reftests/text-text-anchor-201.svg": [
+    [
+     "svg/text/reftests/text-text-anchor-201.svg",
+     [
+      [
+       "/svg/text/reftests/text-text-anchor-201-ref.svg",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "svg/text/reftests/text-text-anchor-202.svg": [
+    [
+     "svg/text/reftests/text-text-anchor-202.svg",
+     [
+      [
+       "/svg/text/reftests/text-text-anchor-202-ref.svg",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "svg/text/reftests/text-text-anchor-203.svg": [
+    [
+     "svg/text/reftests/text-text-anchor-203.svg",
+     [
+      [
+       "/svg/text/reftests/text-text-anchor-003-ref.svg",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
    "svg/text/reftests/textpath-shape-001.svg": [
     [
      "svg/text/reftests/textpath-shape-001.svg",
@@ -204356,6 +204452,11 @@
      {}
     ]
    ],
+   "animation-worklet/worklet-animation-with-non-ascii-name-ref.html": [
+    [
+     {}
+    ]
+   ],
    "animation-worklet/worklet-animation-with-scroll-timeline-and-overflow-hidden-ref.html": [
     [
      {}
@@ -299636,6 +299737,11 @@
      {}
     ]
    ],
+   "html/rendering/non-replaced-elements/tables/table-border-3-ref.html": [
+    [
+     {}
+    ]
+   ],
    "html/rendering/non-replaced-elements/tables/table-cell-width-ref.html": [
     [
      {}
@@ -305021,6 +305127,11 @@
      {}
     ]
    ],
+   "mathml/presentation-markup/fractions/frac-linethickness-004-ref.html": [
+    [
+     {}
+    ]
+   ],
    "mathml/presentation-markup/fractions/frac-mrow-001-ref.html": [
     [
      {}
@@ -307446,6 +307557,16 @@
      {}
     ]
    ],
+   "pointerevents/resources/pointerevent_mouse_pointercapture-iframe.html": [
+    [
+     {}
+    ]
+   ],
+   "pointerevents/resources/pointerevent_mouse_pointercapture_inactivate_pointer-iframe.html": [
+    [
+     {}
+    ]
+   ],
    "pointerevents/resources/pointerevent_pointerId_scope-iframe.html": [
     [
      {}
@@ -317106,6 +317227,41 @@
      {}
     ]
    ],
+   "svg/text/reftests/text-text-anchor-001-ref.svg": [
+    [
+     {}
+    ]
+   ],
+   "svg/text/reftests/text-text-anchor-002-ref.svg": [
+    [
+     {}
+    ]
+   ],
+   "svg/text/reftests/text-text-anchor-003-ref.svg": [
+    [
+     {}
+    ]
+   ],
+   "svg/text/reftests/text-text-anchor-102-ref.svg": [
+    [
+     {}
+    ]
+   ],
+   "svg/text/reftests/text-text-anchor-201-ref.svg": [
+    [
+     {}
+    ]
+   ],
+   "svg/text/reftests/text-text-anchor-202-ref.svg": [
+    [
+     {}
+    ]
+   ],
+   "svg/text/reftests/text-text-anchor-203-ref.svg": [
+    [
+     {}
+    ]
+   ],
    "svg/text/reftests/textpath-shape-001-ref.svg": [
     [
      {}
@@ -330146,6 +330302,16 @@
      {}
     ]
    ],
+   "xhr/resources/auth10/auth.py": [
+    [
+     {}
+    ]
+   ],
+   "xhr/resources/auth11/auth.py": [
+    [
+     {}
+    ]
+   ],
    "xhr/resources/auth2/auth.py": [
     [
      {}
@@ -384573,6 +384739,14 @@
      {}
     ]
    ],
+   "html/browsers/the-window-object/BarProp.window.js": [
+    [
+     "html/browsers/the-window-object/BarProp.window.html",
+     {
+      "script_metadata": []
+     }
+    ]
+   ],
    "html/browsers/the-window-object/Document-defaultView.html": [
     [
      "html/browsers/the-window-object/Document-defaultView.html",
@@ -395553,6 +395727,14 @@
      {}
     ]
    ],
+   "html/webappapis/dynamic-markup-insertion/closing-the-input-stream/load-event-after-location-set-during-write.window.js": [
+    [
+     "html/webappapis/dynamic-markup-insertion/closing-the-input-stream/load-event-after-location-set-during-write.window.html",
+     {
+      "script_metadata": []
+     }
+    ]
+   ],
    "html/webappapis/dynamic-markup-insertion/document-write/001.html": [
     [
      "html/webappapis/dynamic-markup-insertion/document-write/001.html",
@@ -397142,6 +397324,12 @@
      {}
     ]
    ],
+   "html/webappapis/update-rendering/child-document-raf-order.html": [
+    [
+     "html/webappapis/update-rendering/child-document-raf-order.html",
+     {}
+    ]
+   ],
    "idle-detection/basics.tentative.https.any.js": [
     [
      "idle-detection/basics.tentative.https.any.html",
@@ -415408,6 +415596,30 @@
      }
     ]
    ],
+   "pointerevents/pointerevent_mouse_capture_change_hover.html": [
+    [
+     "pointerevents/pointerevent_mouse_capture_change_hover.html",
+     {
+      "testdriver": true
+     }
+    ]
+   ],
+   "pointerevents/pointerevent_mouse_pointercapture_in_frame.html": [
+    [
+     "pointerevents/pointerevent_mouse_pointercapture_in_frame.html",
+     {
+      "testdriver": true
+     }
+    ]
+   ],
+   "pointerevents/pointerevent_mouse_pointercapture_inactivate_pointer.html": [
+    [
+     "pointerevents/pointerevent_mouse_pointercapture_inactivate_pointer.html",
+     {
+      "testdriver": true
+     }
+    ]
+   ],
    "pointerevents/pointerevent_on_event_handlers.html": [
     [
      "pointerevents/pointerevent_on_event_handlers.html",
@@ -426177,12 +426389,24 @@
      {}
     ]
    ],
+   "resource-timing/TAO-case-insensitive-null-opaque-origin.sub.html": [
+    [
+     "resource-timing/TAO-case-insensitive-null-opaque-origin.sub.html",
+     {}
+    ]
+   ],
    "resource-timing/TAO-crossorigin-port.sub.html": [
     [
      "resource-timing/TAO-crossorigin-port.sub.html",
      {}
     ]
    ],
+   "resource-timing/TAO-null-opaque-origin.sub.html": [
+    [
+     "resource-timing/TAO-null-opaque-origin.sub.html",
+     {}
+    ]
+   ],
    "resource-timing/buffer-full-add-after-full-event.html": [
     [
      "resource-timing/buffer-full-add-after-full-event.html",
@@ -437665,9 +437889,9 @@
      }
     ]
    ],
-   "wake-lock/idlharness.https.window.js": [
+   "wake-lock/idlharness.https.any.js": [
     [
-     "wake-lock/idlharness.https.window.html",
+     "wake-lock/idlharness.https.any.html",
      {
       "script_metadata": [
        [
@@ -437680,18 +437904,21 @@
        ]
       ]
      }
-    ]
-   ],
-   "wake-lock/wakelock-api.https.html": [
+    ],
     [
-     "wake-lock/wakelock-api.https.html",
-     {}
-    ]
-   ],
-   "wake-lock/wakelock-cancel-twice.https.html": [
-    [
-     "wake-lock/wakelock-cancel-twice.https.html",
-     {}
+     "wake-lock/idlharness.https.any.worker.html",
+     {
+      "script_metadata": [
+       [
+        "script",
+        "/resources/WebIDLParser.js"
+       ],
+       [
+        "script",
+        "/resources/idlharness.js"
+       ]
+      ]
+     }
     ]
    ],
    "wake-lock/wakelock-disabled-by-feature-policy.https.sub.html": [
@@ -437742,12 +437969,6 @@
      {}
     ]
    ],
-   "wake-lock/wakelock-promise.https.html": [
-    [
-     "wake-lock/wakelock-promise.https.html",
-     {}
-    ]
-   ],
    "wake-lock/wakelock-state-is-global.https.html": [
     [
      "wake-lock/wakelock-state-is-global.https.html",
@@ -437766,12 +437987,6 @@
      {}
     ]
    ],
-   "wake-lock/wakelockrequest-is-independent.https.html": [
-    [
-     "wake-lock/wakelockrequest-is-independent.https.html",
-     {}
-    ]
-   ],
    "wasm/create_multiple_memory.worker.js": [
     [
      "wasm/create_multiple_memory.worker.html",
@@ -473698,7 +473913,7 @@
  },
  "paths": {
   ".azure-pipelines.yml": [
-   "f3b50455aaa51465f66747d540df0bbde07a9811",
+   "f0b29604e4d6165b0e7b8fa43ff5b34c8cb68008",
    "support"
   ],
   ".codecov.yml": [
@@ -476226,7 +476441,7 @@
    "testharness"
   ],
   "2dcontext/imagebitmap/createImageBitmap-origin.sub.html": [
-   "24848f3d54d833b029bc0380ff365a2c6737bb44",
+   "ae8c70f9c0799c8834f0167a47e7040a5927514c",
    "testharness"
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   "2dcontext/imagebitmap/createImageBitmap-sizeOverflow.html": [
@@ -481777,6 +481992,14 @@
    "8b72d4e487c455f5e3d4d535a4ddf277fd988d01",
    "testharness"
   ],
+  "animation-worklet/worklet-animation-with-non-ascii-name-ref.html": [
+   "012f6f9d510581f577d8794f31badecb863d0698",
+   "support"
+  ],
+  "animation-worklet/worklet-animation-with-non-ascii-name.https.html": [
+   "d3a3f4ad35c6b297f8f47b5702a4d7d3877bae37",
+   "reftest"
+  ],
   "animation-worklet/worklet-animation-with-scroll-timeline-and-display-none.https.html": [
    "6f981854d38877d42b1c7b63afdb9ec989a32d42",
    "reftest"
@@ -485222,7 +485445,7 @@
    "support"
   ],
   "common/object-association.js": [
-   "e1ab07e71088828a28fe17b0dd02cbd978c68236",
+   "d58f94b62d652ad2879eb83821ba278b56006f7b",
    "support"
   ],
   "common/object-association.js.headers": [
@@ -502486,7 +502709,7 @@
    "support"
   ],
   "conformance-checkers/messages.json": [
-   "02105604121ace09663eb7ef2a331c9fa924371a",
+   "029e5a39acea4b6e6df3f046d8e8a5d77632f025",
    "support"
   ],
   "conformance-checkers/tools/build-svg-tests.py": [
@@ -524770,7 +524993,7 @@
    "reftest"
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   "css/CSS2/css1/c5510-padn-000-ref.xht": [
-   "b7b3c080d0efd06f000248eac73c4d0dbbbce50d",
+   "cea9227e44f906cec070fb8ccbff3907569c8a0b",
    "support"
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   "css/CSS2/css1/c5510-padn-000.xht": [
@@ -559750,7 +559973,7 @@
    "reftest"
   ],
   "css/CSS2/text/white-space-003.xht": [
-   "239a554d461e0962b9c8e3229442941462dd031f",
+   "cf9f539461e80ab57b03753ea99607ac25b0cd32",
    "reftest"
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   "css/CSS2/text/white-space-004-ref.xht": [
@@ -560066,11 +560289,11 @@
    "visual"
   ],
   "css/CSS2/text/white-space-pre-element-001-ref.xht": [
-   "f000117e8bc0bc7b748daaebe2c6f6e8ed691993",
+   "fecdfb157d1af506df724120616f9b2d818e85d9",
    "support"
   ],
   "css/CSS2/text/white-space-pre-element-001.xht": [
-   "cf49962d3731cb1d338a3e311de45cc8d8b31768",
+   "7ec2ba896d44d285ebd49649236bb2dddc534bf4",
    "reftest"
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   "css/CSS2/text/white-space-processing-001.xht": [
@@ -560250,7 +560473,7 @@
    "reftest"
   ],
   "css/CSS2/text/white-space-processing-040.xht": [
-   "857107ea28302d5c6582a821548597a9fe429d5c",
+   "03245a2b0a2071d54330aaf9294661c5d46c74c1",
    "reftest"
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   "css/CSS2/text/white-space-processing-041.xht": [
@@ -638970,7 +639193,7 @@
    "testharness"
   ],
   "custom-elements/parser/parser-uses-registry-of-owner-document.html": [
-   "51e3e5ddfb1c92e6c2b39cfd3d4b851eabe08775",
+   "bb256da295165f0fee73214460aa519601046c4e",
    "testharness"
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   "custom-elements/parser/serializing-html-fragments.html": [
@@ -639014,7 +639237,7 @@
    "testharness"
   ],
   "custom-elements/reactions/Document.html": [
-   "721ad1f4ced84b8c81291fe92fa402e7b6384358",
+   "1f05982a90cf94e8a0ba79bd107f663ed90eead0",
    "testharness"
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   "custom-elements/reactions/Element.html": [
@@ -639630,7 +639853,7 @@
    "testharness"
   ],
   "dom/events/Event-dispatch-on-disabled-elements.html": [
-   "688524bd23879f7fadb5de3b0b055a2d6b05c065",
+   "008eb30cf6bbbcaf959b4400e308b86c9ff7ec59",
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   "dom/events/Event-dispatch-order.html": [
@@ -644418,7 +644641,7 @@
    "support"
   ],
   "feature-policy/experimental-features/document-write.tentative.html": [
-   "f0148783f1246b6bd60dabd837c64fc6d903e542",
+   "7e09ef7e77a632f81fcc115271c9a74143bd34a7",
    "testharness"
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   "feature-policy/experimental-features/intrinsicsize-with-unsized-media.tentative.https.sub.html": [
@@ -649318,11 +649541,11 @@
    "testharness"
   ],
   "html/browsers/history/the-history-interface/traverse_the_history_write_after_load_1-1.html": [
-   "af0118a01e7a2039bef85cfd83473e1845c6b9ad",
+   "945c8d81f8271cc9f67b01b5f0040f76651fd8d0",
    "support"
   ],
   "html/browsers/history/the-history-interface/traverse_the_history_write_after_load_1.html": [
-   "c2c31e76f4530072b790bc6df8b60a518ef795e8",
+   "404d61d0cfc8d156a47593431dce4fda53511467",
    "testharness"
   ],
   "html/browsers/history/the-history-interface/traverse_the_history_write_after_load_2-1.html": [
@@ -649566,11 +649789,11 @@
    "testharness"
   ],
   "html/browsers/history/the-location-interface/reload_document_open_write-1.html": [
-   "1c5a1db8ff8e81c4ace2d10abc7d23130a1a09f6",
+   "e1a2e811c9c84317856e30aba05de027070f2142",
    "support"
   ],
   "html/browsers/history/the-location-interface/reload_document_open_write.html": [
-   "0fc2a2c3d8ef4687c4d6f2dbfcaa0ef73fea2b65",
+   "905ef8874307b7052cd7195df6bda131471fdb17",
    "testharness"
   ],
   "html/browsers/history/the-location-interface/reload_document_write-1.html": [
@@ -649985,6 +650208,10 @@
    "bb7ced0a14bad94fe6d6274d297799c8a2e472db",
    "reftest"
   ],
+  "html/browsers/the-window-object/BarProp.window.js": [
+   "27a357cab591c92bab589924f78841ca89e69a71",
+   "testharness"
+  ],
   "html/browsers/the-window-object/Document-defaultView.html": [
    "dbc75d30b213cfa2a94a97815b9d793228ba3be1",
    "testharness"
@@ -650313,30 +650540,6 @@
    "c2446c6fe958a5a0507ffcf729fa027a8d202832",
    "support"
   ],
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   ],
   "wake-lock/wakelock-insecure-context.html": [
-   "8d728f83e5d14b951ba4f151a7eb06f5257df475",
+   "2c61f41311db3f9edf0502ea752ca27970eed3fb",
    "testharness"
   ],
   "wake-lock/wakelock-onactivechange.https.html": [
-   "899b9b78d95c66a41f33b57ceac55e12eba9ec6e",
-   "testharness"
-  ],
-  "wake-lock/wakelock-promise.https.html": [
-   "3d4c4868699c9c77a6636e3246c65de7b71dc36a",
+   "381e1e40f1cfb676e33d5c0374924164f4f6e2de",
    "testharness"
   ],
   "wake-lock/wakelock-state-is-global.https.html": [
-   "98cebe01c1126e0ebdc26784e15e9a057d1a03fb",
+   "2eee31982498caab44b5160237c7ce7f8ce9a569",
    "testharness"
   ],
   "wake-lock/wakelock-supported-by-feature-policy.html": [
@@ -710686,11 +710989,7 @@
    "testharness"
   ],
   "wake-lock/wakelock-type.https.html": [
-   "2f9e1242614d57a79b2aada32cdd3d2cb3ae012d",
-   "testharness"
-  ],
-  "wake-lock/wakelockrequest-is-independent.https.html": [
-   "a113b004fe2a5dbcea8d11b1cedcca70841506bc",
+   "df7a68a040bef273efcd2584dfe3612adc05d85b",
    "testharness"
   ],
   "wasm/META.yml": [
@@ -711014,7 +711313,7 @@
    "testharness"
   ],
   "wasm/webapi/instantiateStreaming.any.js": [
-   "224b0a3d0b78af89998992ec1aed212f307b6866",
+   "daec185484fbab675d226c52e7548b065bd9e701",
    "testharness"
   ],
   "wasm/webapi/invalid-args.any.js": [
@@ -711554,7 +711853,7 @@
    "manual"
   ],
   "web-nfc/resources/nfc_help.js": [
-   "52d2710fd8173be6f6541b93ae8fa6d9251620f7",
+   "dd336ef3af511a5a1164dd2d30c6caa8e3c7447a",
    "support"
   ],
   "web-share/META.yml": [
@@ -714502,7 +714801,7 @@
    "testharness"
   ],
   "webrtc/RTCPeerConnection-setRemoteDescription-tracks.https.html": [
-   "4e9568f0bcdb4813d973197640aa7ea200598b56",
+   "59761c4c4bdca57141272b092fe56a917b612c7b",
    "testharness"
   ],
   "webrtc/RTCPeerConnection-setRemoteDescription.html": [
@@ -714606,7 +714905,7 @@
    "testharness"
   ],
   "webrtc/RTCRtpTransceiver.https.html": [
-   "8004fec9f0833d5e59ae48c92dc5ee06beafd4c2",
+   "b5f3c55ee5810f30ee8439e0b33df84b379d975c",
    "testharness"
   ],
   "webrtc/RTCSctpTransport-constructor.html": [
@@ -721781,6 +722080,14 @@
    "8b6682686c8709994a19ae430ed2120a047f9398",
    "support"
   ],
+  "xhr/resources/auth10/auth.py": [
+   "8b6682686c8709994a19ae430ed2120a047f9398",
+   "support"
+  ],
+  "xhr/resources/auth11/auth.py": [
+   "8b6682686c8709994a19ae430ed2120a047f9398",
+   "support"
+  ],
   "xhr/resources/auth2/auth.py": [
    "8b6682686c8709994a19ae430ed2120a047f9398",
    "support"
@@ -722182,7 +722489,7 @@
    "testharness"
   ],
   "xhr/send-authentication-basic-cors-not-enabled.htm": [
-   "070b2ba321256b6bd772436a5addfd09c0b3ff5d",
+   "68ad5e95ed870f9b09401e8417df70116c0336af",
    "testharness"
   ],
   "xhr/send-authentication-basic-cors.htm": [
@@ -722190,7 +722497,7 @@
    "testharness"
   ],
   "xhr/send-authentication-basic-repeat-no-args.htm": [
-   "464d69cf789ecff6309c0866929e566e1c2703a7",
+   "38f1b20700a33e620ffd3217b74b8e3fcec6761b",
    "testharness"
   ],
   "xhr/send-authentication-basic-setrequestheader-and-arguments.htm": [
diff --git a/tests/wpt/metadata/css/CSS2/css1/c5510-padn-000.xht.ini b/tests/wpt/metadata/css/CSS2/css1/c5510-padn-000.xht.ini
deleted file mode 100644
index 8c4b646fe75..00000000000
--- a/tests/wpt/metadata/css/CSS2/css1/c5510-padn-000.xht.ini
+++ /dev/null
@@ -1,3 +0,0 @@
-[c5510-padn-000.xht]
-  type: reftest
-  expected: FAIL
diff --git a/tests/wpt/metadata/css/CSS2/text/white-space-003.xht.ini b/tests/wpt/metadata/css/CSS2/text/white-space-003.xht.ini
deleted file mode 100644
index 182a9fc2d1e..00000000000
--- a/tests/wpt/metadata/css/CSS2/text/white-space-003.xht.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[white-space-003.xht]
-  expected: FAIL
diff --git a/tests/wpt/metadata/css/CSS2/text/white-space-pre-element-001.xht.ini b/tests/wpt/metadata/css/CSS2/text/white-space-pre-element-001.xht.ini
deleted file mode 100644
index a93a162650e..00000000000
--- a/tests/wpt/metadata/css/CSS2/text/white-space-pre-element-001.xht.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[white-space-pre-element-001.xht]
-  expected: FAIL
diff --git a/tests/wpt/metadata/css/CSS2/text/white-space-processing-040.xht.ini b/tests/wpt/metadata/css/CSS2/text/white-space-processing-040.xht.ini
index 5a2e21efa76..da6314c39ac 100644
--- a/tests/wpt/metadata/css/CSS2/text/white-space-processing-040.xht.ini
+++ b/tests/wpt/metadata/css/CSS2/text/white-space-processing-040.xht.ini
@@ -1,4 +1,3 @@
 [white-space-processing-040.xht]
   expected:
     if os == "linux": FAIL
-    if not debug and (os == "mac") and (version == "OS X 10.11.6") and (processor == "x86_64") and (bits == 64): FAIL
diff --git a/tests/wpt/metadata/css/css-fonts/variations/at-font-face-font-matching.html.ini b/tests/wpt/metadata/css/css-fonts/variations/at-font-face-font-matching.html.ini
index f10335741f0..35af5352290 100644
--- a/tests/wpt/metadata/css/css-fonts/variations/at-font-face-font-matching.html.ini
+++ b/tests/wpt/metadata/css/css-fonts/variations/at-font-face-font-matching.html.ini
@@ -44,15 +44,9 @@
   [Matching font-weight: '501' should prefer '503 520' over '500']
     expected: FAIL
 
-  [Matching font-weight: '501' should prefer '500' over '450 460']
-    expected: FAIL
-
   [Matching font-weight: '501' should prefer '450 460' over '390 410']
     expected: FAIL
 
-  [Matching font-weight: '399' should prefer '340 360' over '200 300']
-    expected: FAIL
-
   [Matching font-weight: '399' should prefer '200 300' over '400']
     expected: FAIL
 
@@ -305,9 +299,6 @@
   [Matching font-style: 'oblique 21deg' should prefer 'oblique 40deg 50deg' over 'oblique 20deg']
     expected: FAIL
 
-  [Matching font-style: 'oblique 0deg' should prefer 'oblique 5deg' over 'oblique 15deg 20deg']
-    expected: FAIL
-
   [Matching font-style: 'oblique 0deg' should prefer 'oblique 40deg 50deg' over 'italic']
     expected: FAIL
 
diff --git a/tests/wpt/metadata/css/css-fonts/variations/font-weight-matching.html.ini b/tests/wpt/metadata/css/css-fonts/variations/font-weight-matching.html.ini
index 9e36490490f..a5b51f7ff93 100644
--- a/tests/wpt/metadata/css/css-fonts/variations/font-weight-matching.html.ini
+++ b/tests/wpt/metadata/css/css-fonts/variations/font-weight-matching.html.ini
@@ -1,7 +1,4 @@
 [font-weight-matching.html]
-  [Test @font-face matching for weight 400]
-    expected: FAIL
-
   [Test @font-face matching for weight 470]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/css/css-transitions/transitions-animatable-properties-01.html.ini b/tests/wpt/metadata/css/css-transitions/transitions-animatable-properties-01.html.ini
index 8850ec200da..7d9242c1a54 100644
--- a/tests/wpt/metadata/css/css-transitions/transitions-animatable-properties-01.html.ini
+++ b/tests/wpt/metadata/css/css-transitions/transitions-animatable-properties-01.html.ini
@@ -74,3 +74,18 @@
   [opacity end]
     expected: FAIL
 
+  [height end]
+    expected: FAIL
+
+  [border-top-width end]
+    expected: FAIL
+
+  [border-left-width end]
+    expected: FAIL
+
+  [border-bottom-width end]
+    expected: FAIL
+
+  [border-right-width end]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/cssom-view/scroll-behavior-smooth.html.ini b/tests/wpt/metadata/css/cssom-view/scroll-behavior-smooth.html.ini
index 8e2ceeddfbe..bcd187f508c 100644
--- a/tests/wpt/metadata/css/cssom-view/scroll-behavior-smooth.html.ini
+++ b/tests/wpt/metadata/css/cssom-view/scroll-behavior-smooth.html.ini
@@ -6,6 +6,3 @@
   [Instant scrolling while doing history navigation.]
     expected: FAIL
 
-  [Smooth scrolling while doing history navigation.]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/custom-elements/custom-element-registry/per-global.html.ini b/tests/wpt/metadata/custom-elements/custom-element-registry/per-global.html.ini
index 0e37b709ac0..b04c8469302 100644
--- a/tests/wpt/metadata/custom-elements/custom-element-registry/per-global.html.ini
+++ b/tests/wpt/metadata/custom-elements/custom-element-registry/per-global.html.ini
@@ -3,6 +3,3 @@
   [Navigating from the initial about:blank must not replace window.customElements]
     expected: FAIL
 
-  [document.open() must replace window.customElements]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/custom-elements/parser/parser-uses-registry-of-owner-document.html.ini b/tests/wpt/metadata/custom-elements/parser/parser-uses-registry-of-owner-document.html.ini
index f682fd43fb6..aea72a43f87 100644
--- a/tests/wpt/metadata/custom-elements/parser/parser-uses-registry-of-owner-document.html.ini
+++ b/tests/wpt/metadata/custom-elements/parser/parser-uses-registry-of-owner-document.html.ini
@@ -6,9 +6,3 @@
   [HTML parser must use the registry of window.document in a document created by document.implementation.createHTMLDocument()]
     expected: FAIL
 
-  [document.write() must not instantiate a custom element without a defined insertion point]
-    expected: FAIL
-
-  [document.writeln() must not instantiate a custom element without a defined insertion point]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/domparsing/interfaces.any.js.ini b/tests/wpt/metadata/domparsing/interfaces.any.js.ini
index 2d483b2b657..3a75b5fefe5 100644
--- a/tests/wpt/metadata/domparsing/interfaces.any.js.ini
+++ b/tests/wpt/metadata/domparsing/interfaces.any.js.ini
@@ -38,6 +38,9 @@
   [XMLSerializer interface: new XMLSerializer() must inherit property "serializeToString(Node)" with the proper type]
     expected: FAIL
 
+  [ShadowRoot interface: attribute innerHTML]
+    expected: FAIL
+
 
 [interfaces.any.worker.html]
   [interfaces]
diff --git a/tests/wpt/metadata/html/browsers/browsing-the-web/navigating-across-documents/javascript-url-abort/javascript-url-abort-return-value-undefined.tentative.html.ini b/tests/wpt/metadata/html/browsers/browsing-the-web/navigating-across-documents/javascript-url-abort/javascript-url-abort-return-value-undefined.tentative.html.ini
new file mode 100644
index 00000000000..78879bad5f1
--- /dev/null
+++ b/tests/wpt/metadata/html/browsers/browsing-the-web/navigating-across-documents/javascript-url-abort/javascript-url-abort-return-value-undefined.tentative.html.ini
@@ -0,0 +1,5 @@
+[javascript-url-abort-return-value-undefined.tentative.html]
+  expected: TIMEOUT
+  [Not aborting fetch for javascript:undefined navigation]
+    expected: TIMEOUT
+
diff --git a/tests/wpt/metadata/html/browsers/browsing-the-web/navigating-across-documents/navigation-unload-same-origin-fragment.html.ini b/tests/wpt/metadata/html/browsers/browsing-the-web/navigating-across-documents/navigation-unload-same-origin-fragment.html.ini
new file mode 100644
index 00000000000..e495b626d2e
--- /dev/null
+++ b/tests/wpt/metadata/html/browsers/browsing-the-web/navigating-across-documents/navigation-unload-same-origin-fragment.html.ini
@@ -0,0 +1,4 @@
+[navigation-unload-same-origin-fragment.html]
+  [Tests that a fragment navigation in the unload handler will not block the initial navigation]
+    expected: FAIL
+
diff --git a/tests/wpt/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_4.html.ini
similarity index 71%
rename from tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_5.html.ini
rename to tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_4.html.ini
index dc2e45516de..385376c7321 100644
--- 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_4.html.ini
@@ -1,4 +1,4 @@
-[traverse_the_history_5.html]
+[traverse_the_history_4.html]
   [Multiple history traversals, last would be aborted]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_write_after_load_1.html.ini b/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_write_after_load_1.html.ini
deleted file mode 100644
index 52142098cb0..00000000000
--- a/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_write_after_load_1.html.ini
+++ /dev/null
@@ -1,6 +0,0 @@
-[traverse_the_history_write_after_load_1.html]
-  type: testharness
-  expected: TIMEOUT
-  [Traverse the history after document.write after the load event]
-    expected: TIMEOUT
-
diff --git a/tests/wpt/metadata/html/browsers/history/the-location-interface/per-global.window.js.ini b/tests/wpt/metadata/html/browsers/history/the-location-interface/per-global.window.js.ini
index f9da8e0f8a1..4478f79fdd1 100644
--- a/tests/wpt/metadata/html/browsers/history/the-location-interface/per-global.window.js.ini
+++ b/tests/wpt/metadata/html/browsers/history/the-location-interface/per-global.window.js.ini
@@ -3,6 +3,3 @@
   [Navigating from the initial about:blank must not replace window.location]
     expected: FAIL
 
-  [document.open() must replace window.location]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/html/browsers/history/the-location-interface/reload_document_open_write.html.ini b/tests/wpt/metadata/html/browsers/history/the-location-interface/reload_document_open_write.html.ini
deleted file mode 100644
index e0d34aadd27..00000000000
--- a/tests/wpt/metadata/html/browsers/history/the-location-interface/reload_document_open_write.html.ini
+++ /dev/null
@@ -1,5 +0,0 @@
-[reload_document_open_write.html]
-  type: testharness
-  [Reload document with document.open and document.written content]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/html/browsers/the-window-object/BarProp.window.js.ini b/tests/wpt/metadata/html/browsers/the-window-object/BarProp.window.js.ini
new file mode 100644
index 00000000000..1bb1060ba78
--- /dev/null
+++ b/tests/wpt/metadata/html/browsers/the-window-object/BarProp.window.js.ini
@@ -0,0 +1,7 @@
+[BarProp.window.html]
+  [BarProp objects of an auxiliary Window]
+    expected: FAIL
+
+  [BarBrop objects of a nested Window]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/html/rendering/non-replaced-elements/tables/table-border-3q.html.ini b/tests/wpt/metadata/html/rendering/non-replaced-elements/tables/table-border-3q.html.ini
new file mode 100644
index 00000000000..a06cde3354d
--- /dev/null
+++ b/tests/wpt/metadata/html/rendering/non-replaced-elements/tables/table-border-3q.html.ini
@@ -0,0 +1,2 @@
+[table-border-3q.html]
+  expected: FAIL
diff --git a/tests/wpt/metadata/html/rendering/non-replaced-elements/tables/table-border-3s.html.ini b/tests/wpt/metadata/html/rendering/non-replaced-elements/tables/table-border-3s.html.ini
new file mode 100644
index 00000000000..e5d4a5dbc95
--- /dev/null
+++ b/tests/wpt/metadata/html/rendering/non-replaced-elements/tables/table-border-3s.html.ini
@@ -0,0 +1,2 @@
+[table-border-3s.html]
+  expected: FAIL
diff --git a/tests/wpt/metadata/html/semantics/embedded-content/the-img-element/non-active-document.html.ini b/tests/wpt/metadata/html/semantics/embedded-content/the-img-element/non-active-document.html.ini
new file mode 100644
index 00000000000..8cc42056d34
--- /dev/null
+++ b/tests/wpt/metadata/html/semantics/embedded-content/the-img-element/non-active-document.html.ini
@@ -0,0 +1,10 @@
+[non-active-document.html]
+  [DOMParser]
+    expected: FAIL
+
+  [createHTMLDocument]
+    expected: FAIL
+
+  [<template>]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/html/semantics/interactive-elements/the-details-element/toggleEvent.html.ini b/tests/wpt/metadata/html/semantics/interactive-elements/the-details-element/toggleEvent.html.ini
new file mode 100644
index 00000000000..9e522297c94
--- /dev/null
+++ b/tests/wpt/metadata/html/semantics/interactive-elements/the-details-element/toggleEvent.html.ini
@@ -0,0 +1,7 @@
+[toggleEvent.html]
+  [Calling open twice on 'details' fires only one toggle event]
+    expected: FAIL
+
+  [Setting open=true to opened 'details' element should not fire a toggle event at the 'details' element]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/html/syntax/parsing/DOMContentLoaded-defer.html.ini b/tests/wpt/metadata/html/syntax/parsing/DOMContentLoaded-defer.html.ini
deleted file mode 100644
index a9677391662..00000000000
--- a/tests/wpt/metadata/html/syntax/parsing/DOMContentLoaded-defer.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[DOMContentLoaded-defer.html]
-  [The end: DOMContentLoaded and defer scripts]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/html/webappapis/dynamic-markup-insertion/closing-the-input-stream/load-event-after-location-set-during-write.window.js.ini b/tests/wpt/metadata/html/webappapis/dynamic-markup-insertion/closing-the-input-stream/load-event-after-location-set-during-write.window.js.ini
new file mode 100644
index 00000000000..a817ad54be7
--- /dev/null
+++ b/tests/wpt/metadata/html/webappapis/dynamic-markup-insertion/closing-the-input-stream/load-event-after-location-set-during-write.window.js.ini
@@ -0,0 +1,4 @@
+[load-event-after-location-set-during-write.window.html]
+  [Setting location from document.write() call should not trigger load event until that load completes]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/html/webappapis/update-rendering/child-document-raf-order.html.ini b/tests/wpt/metadata/html/webappapis/update-rendering/child-document-raf-order.html.ini
new file mode 100644
index 00000000000..98878aaebb3
--- /dev/null
+++ b/tests/wpt/metadata/html/webappapis/update-rendering/child-document-raf-order.html.ini
@@ -0,0 +1,5 @@
+[child-document-raf-order.html]
+  expected: TIMEOUT
+  [Ordering of steps in "Update the Rendering" - child document requestAnimationFrame order]
+    expected: TIMEOUT
+
diff --git a/tests/wpt/metadata/resource-timing/TAO-case-insensitive-null-opaque-origin.sub.html.ini b/tests/wpt/metadata/resource-timing/TAO-case-insensitive-null-opaque-origin.sub.html.ini
new file mode 100644
index 00000000000..7010d11a982
--- /dev/null
+++ b/tests/wpt/metadata/resource-timing/TAO-case-insensitive-null-opaque-origin.sub.html.ini
@@ -0,0 +1,5 @@
+[TAO-case-insensitive-null-opaque-origin.sub.html]
+  expected: TIMEOUT
+  [Test case-insensitive null TAO value with opaque origins]
+    expected: NOTRUN
+
diff --git a/tests/wpt/metadata/resource-timing/TAO-null-opaque-origin.sub.html.ini b/tests/wpt/metadata/resource-timing/TAO-null-opaque-origin.sub.html.ini
new file mode 100644
index 00000000000..a22164ba876
--- /dev/null
+++ b/tests/wpt/metadata/resource-timing/TAO-null-opaque-origin.sub.html.ini
@@ -0,0 +1,5 @@
+[TAO-null-opaque-origin.sub.html]
+  expected: TIMEOUT
+  [Test null TAO value with opaque origins]
+    expected: NOTRUN
+
diff --git a/tests/wpt/metadata/wasm/webapi/instantiateStreaming.any.js.ini b/tests/wpt/metadata/wasm/webapi/instantiateStreaming.any.js.ini
index e3f0cc97445..112f5872ec6 100644
--- a/tests/wpt/metadata/wasm/webapi/instantiateStreaming.any.js.ini
+++ b/tests/wpt/metadata/wasm/webapi/instantiateStreaming.any.js.ini
@@ -23,6 +23,9 @@
   [No imports]
     expected: FAIL
 
+  [Synchronous options handling]
+    expected: FAIL
+
 
 [instantiateStreaming.any.serviceworker.html]
   [instantiateStreaming]
@@ -59,3 +62,6 @@
   [No imports]
     expected: FAIL
 
+  [Synchronous options handling]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/webaudio/the-audio-api/the-analysernode-interface/realtimeanalyser-fft-scaling.html.ini b/tests/wpt/metadata/webaudio/the-audio-api/the-analysernode-interface/realtimeanalyser-fft-scaling.html.ini
index 66bd350083b..a56bad443a2 100644
--- a/tests/wpt/metadata/webaudio/the-audio-api/the-analysernode-interface/realtimeanalyser-fft-scaling.html.ini
+++ b/tests/wpt/metadata/webaudio/the-audio-api/the-analysernode-interface/realtimeanalyser-fft-scaling.html.ini
@@ -1,4 +1,5 @@
 [realtimeanalyser-fft-scaling.html]
+  expected: TIMEOUT
   [X 2048-point FFT peak position is not equal to 64. Got 0.]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/workers/semantics/multiple-workers/005.html.ini b/tests/wpt/metadata/workers/semantics/multiple-workers/005.html.ini
index f584fce5df1..268949ced5c 100644
--- a/tests/wpt/metadata/workers/semantics/multiple-workers/005.html.ini
+++ b/tests/wpt/metadata/workers/semantics/multiple-workers/005.html.ini
@@ -1,5 +1,4 @@
 [005.html]
-  expected: ERROR
   [dedicated worker in shared worker in dedicated worker]
     expected: FAIL
 
diff --git a/tests/wpt/web-platform-tests/.azure-pipelines.yml b/tests/wpt/web-platform-tests/.azure-pipelines.yml
index f3b50455aaa..f0b29604e4d 100644
--- a/tests/wpt/web-platform-tests/.azure-pipelines.yml
+++ b/tests/wpt/web-platform-tests/.azure-pipelines.yml
@@ -183,7 +183,7 @@ jobs:
   - template: tools/ci/azure/install_certs.yml
   - template: tools/ci/azure/update_hosts.yml
   - template: tools/ci/azure/update_manifest.yml
-  - script: python ./wpt run --no-manifest-update --no-fail-on-unexpected --install-fonts --test-types reftest testharness --this-chunk $(System.JobPositionInPhase) --total-chunks $(System.TotalJobsInPhase) --chunk-type hash --log-tbpl - --log-tbpl-level info --log-wptreport $(Build.ArtifactStagingDirectory)/wpt_report_$(System.JobPositionInPhase).json --log-wptscreenshot $(Build.ArtifactStagingDirectory)/wpt_screenshot_$(System.JobPositionInPhase).txt edge_webdriver
+  - script: python ./wpt run --no-manifest-update --no-fail-on-unexpected --install-fonts --test-types reftest testharness --this-chunk $(System.JobPositionInPhase) --total-chunks $(System.TotalJobsInPhase) --chunk-type hash --log-tbpl - --log-tbpl-level info --log-wptreport $(Build.ArtifactStagingDirectory)/wpt_report_$(System.JobPositionInPhase).json edge_webdriver
     displayName: 'Run tests'
   - task: PublishBuildArtifacts@1
     displayName: 'Publish results'
@@ -217,7 +217,7 @@ jobs:
   - template: tools/ci/azure/install_safari.yml
   - template: tools/ci/azure/update_hosts.yml
   - template: tools/ci/azure/update_manifest.yml
-  - script: no_proxy='*' ./wpt run --no-manifest-update --no-restart-on-unexpected --no-fail-on-unexpected --this-chunk=$(System.JobPositionInPhase) --total-chunks=$(System.TotalJobsInPhase) --chunk-type hash --log-wptreport $(Build.ArtifactStagingDirectory)/wpt_report_$(System.JobPositionInPhase).json --log-wptscreenshot $(Build.ArtifactStagingDirectory)/wpt_screenshot_$(System.JobPositionInPhase).txt --channel preview safari
+  - script: no_proxy='*' ./wpt run --no-manifest-update --no-restart-on-unexpected --no-fail-on-unexpected --this-chunk=$(System.JobPositionInPhase) --total-chunks=$(System.TotalJobsInPhase) --chunk-type hash --log-wptreport $(Build.ArtifactStagingDirectory)/wpt_report_$(System.JobPositionInPhase).json --channel preview safari
     displayName: 'Run tests'
   - task: PublishBuildArtifacts@1
     displayName: 'Publish results'
diff --git a/tests/wpt/web-platform-tests/2dcontext/imagebitmap/createImageBitmap-origin.sub.html b/tests/wpt/web-platform-tests/2dcontext/imagebitmap/createImageBitmap-origin.sub.html
index 24848f3d54d..ae8c70f9c07 100644
--- a/tests/wpt/web-platform-tests/2dcontext/imagebitmap/createImageBitmap-origin.sub.html
+++ b/tests/wpt/web-platform-tests/2dcontext/imagebitmap/createImageBitmap-origin.sub.html
@@ -9,7 +9,7 @@
 <script>
 const crossOriginImageUrl = "http://{{domains[www1]}}:{{ports[http][0]}}/images/red.png";
 
-function assert_origin_unclean(bitmap) {
+function assert_origin_unclean_getImageData(bitmap) {
   const context = document.createElement("canvas").getContext("2d");
   context.drawImage(bitmap, 0, 0);
   assert_throws("SecurityError", () => {
@@ -17,6 +17,20 @@ function assert_origin_unclean(bitmap) {
   });
 }
 
+function assert_origin_unclean_drawImage(bitmap) {
+  const canvas = document.createElement('canvas');
+  const ctx = canvas.getContext('2d');
+  ctx.drawImage(bitmap, 0, 0);
+  assert_throws('SecurityError', () => canvas.toDataURL());
+}
+
+function assert_origin_unclean_transferFromImageBitmap(bitmap) {
+  var canvas = document.createElement('canvas');
+  var ctx = canvas.getContext('bitmaprenderer');
+  ctx.transferFromImageBitmap(bitmap);
+  assert_throws('SecurityError', () => canvas.toDataURL());
+}
+
 function makeImage() {
   return new Promise((resolve, reject) => {
     const image = new Image();
@@ -104,7 +118,13 @@ const arguments = [
 
 for (let { name, factory } of arguments) {
   promise_test(function() {
-    return factory().then(createImageBitmap).then(assert_origin_unclean);
-  }, name);
+    return factory().then(createImageBitmap).then(assert_origin_unclean_getImageData);
+  }, `${name}: origin unclear getImageData`);
+  promise_test(function() {
+    return factory().then(createImageBitmap).then(assert_origin_unclean_drawImage);
+  }, `${name}: origin unclear 2dContext.drawImage`);
+  promise_test(function() {
+    return factory().then(createImageBitmap).then(assert_origin_unclean_transferFromImageBitmap);
+  }, `${name}: origin unclear bitmaprenderer.transferFromImageBitmap`);
 }
 </script>
diff --git a/tests/wpt/web-platform-tests/animation-worklet/worklet-animation-with-non-ascii-name-ref.html b/tests/wpt/web-platform-tests/animation-worklet/worklet-animation-with-non-ascii-name-ref.html
new file mode 100644
index 00000000000..012f6f9d510
--- /dev/null
+++ b/tests/wpt/web-platform-tests/animation-worklet/worklet-animation-with-non-ascii-name-ref.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<title>Reference for WorkletAnimation name should accept non-ASCII characters</title>
+<style>
+.box {
+  width: 100px;
+  height: 100px;
+  background-color: green;
+}
+</style>
+
+<div style="transform: translateX(50px);" class="box"></div>
+<div style="transform: translateX(150px);" class="box"></div>
diff --git a/tests/wpt/web-platform-tests/animation-worklet/worklet-animation-with-non-ascii-name.https.html b/tests/wpt/web-platform-tests/animation-worklet/worklet-animation-with-non-ascii-name.https.html
new file mode 100644
index 00000000000..d3a3f4ad35c
--- /dev/null
+++ b/tests/wpt/web-platform-tests/animation-worklet/worklet-animation-with-non-ascii-name.https.html
@@ -0,0 +1,59 @@
+<html class="reftest-wait">
+<title>WorkletAnimation name should accept non-ASCII characters</title>
+<link rel="help" href="https://drafts.css-houdini.org/css-animationworklet/">
+<meta name="assert" content="Worklet Animation name should accept non-ASCII characters">
+<link rel="match" href="worklet-animation-with-non-ascii-name-ref.html">
+
+<script src="/web-animations/testcommon.js"></script>
+<script src="/common/reftest-wait.js"></script>
+<script src="common.js"></script>
+
+<style>
+  .box {
+    width: 100px;
+    height: 100px;
+    background-color: green;
+  }
+</style>
+
+<div id="t0" class="box"></div>
+<div id="t1" class="box"></div>
+<script id="visual_update"  type="text/worklet">
+  registerAnimator('bob', class {
+    animate(currentTime, effect) {
+      effect.localTime = 250;
+    }
+  });
+  registerAnimator('東京', class {
+    animate(currentTime, effect) {
+      effect.localTime = 750;
+    }
+  });
+</script>
+<script>
+  runInAnimationWorklet(
+    document.getElementById('visual_update').textContent
+  ).then(() => {
+    const keyframes = [
+      {transform: 'translateX(0)' },
+      {transform: 'translateX(200px)' }
+    ];
+    const options = {
+      duration: 1000
+    };
+    const $t0 = document.getElementById('t0');
+    const $t0_effect = new KeyframeEffect($t0, keyframes, options);
+    const $t0_animation = new WorkletAnimation('bob', $t0_effect);
+
+    const $t1 = document.getElementById('t1');
+    const $t1_effect = new KeyframeEffect($t1, keyframes, options);
+    const $t1_animation = new WorkletAnimation('東京', $t1_effect);
+
+    $t0_animation.play();
+    $t1_animation.play();
+
+    waitForAsyncAnimationFrames(1).then(_ => {
+      takeScreenshot();
+    });
+  });
+</script>
diff --git a/tests/wpt/web-platform-tests/common/object-association.js b/tests/wpt/web-platform-tests/common/object-association.js
index e1ab07e7108..d58f94b62d6 100644
--- a/tests/wpt/web-platform-tests/common/object-association.js
+++ b/tests/wpt/web-platform-tests/common/object-association.js
@@ -41,9 +41,7 @@ window.testIsPerWindow = propertyName => {
     iframe.src = "/common/blank.html";
   }, `Navigating from the initial about:blank must not replace window.${propertyName}`);
 
-  // Note: document.open()'s spec doesn't match most browsers; see https://github.com/whatwg/html/issues/1698.
-  // However, as explained in https://github.com/whatwg/html/issues/1698#issuecomment-298748641, even an updated spec
-  // will probably still reset Window-associated properties.
+  // Per spec, document.open() should not change any of the Window state.
   async_test(t => {
     const iframe = document.createElement("iframe");
 
@@ -55,7 +53,7 @@ window.testIsPerWindow = propertyName => {
       frame.document.open();
 
       const after = frame[propertyName];
-      assert_not_equals(after, before);
+      assert_equals(after, before);
 
       frame.document.close();
     });
diff --git a/tests/wpt/web-platform-tests/conformance-checkers/messages.json b/tests/wpt/web-platform-tests/conformance-checkers/messages.json
index 02105604121..029e5a39ace 100644
--- a/tests/wpt/web-platform-tests/conformance-checkers/messages.json
+++ b/tests/wpt/web-platform-tests/conformance-checkers/messages.json
@@ -1625,7 +1625,7 @@
     "html/elements/picture/object-srcset-novalid.html": "Attribute \u201csrcset\u201d not allowed on element \u201cobject\u201d at this point.",
     "html/elements/picture/parent-dl-novalid.html": "Element \u201cpicture\u201d not allowed as child of element \u201cdl\u201d in this context. (Suppressing further errors from this subtree.)",
     "html/elements/picture/parent-hgroup-novalid.html": "Element \u201cpicture\u201d not allowed as child of element \u201chgroup\u201d in this context. (Suppressing further errors from this subtree.)",
-    "html/elements/picture/parent-noscript-in-head-novalid.html": "Bad start tag in \u201cpicture\u201d in \u201chead\u201d.",
+    "html/elements/picture/parent-noscript-in-head-novalid.html": "Bad start tag in \u201cpicture\u201d in \u201cnoscript\u201d in \u201chead\u201d.",
     "html/elements/picture/parent-ul-novalid.html": "Element \u201cpicture\u201d not allowed as child of element \u201cul\u201d in this context. (Suppressing further errors from this subtree.)",
     "html/elements/picture/picture-align-novalid.html": "Attribute \u201calign\u201d not allowed on element \u201cpicture\u201d at this point.",
     "html/elements/picture/picture-alt-novalid.html": "Attribute \u201calt\u201d not allowed on element \u201cpicture\u201d at this point.",
diff --git a/tests/wpt/web-platform-tests/css/CSS2/css1/c5510-padn-000-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/css1/c5510-padn-000-ref.xht
index b7b3c080d0e..cea9227e44f 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/css1/c5510-padn-000-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/css1/c5510-padn-000-ref.xht
@@ -4,9 +4,11 @@
 <title>CSS Reftest Reference</title>
 <link rel="author" title="Ms2ger" href="mailto:Ms2ger@gmail.com"/>
 <style type="text/css">
+body {
+  color: navy;
+}
 div {
   width: 138px;
-  color: orange;
   font-size: 10px;
   line-height: 1;
 }
diff --git a/tests/wpt/web-platform-tests/css/CSS2/text/white-space-003.xht b/tests/wpt/web-platform-tests/css/CSS2/text/white-space-003.xht
index 239a554d461..cf9f539461e 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/text/white-space-003.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/text/white-space-003.xht
@@ -43,7 +43,7 @@
         </style>
     </head>
     <body>
-        <p>Test passes if there are two black squares on the page.</p>
+        <p>Test passes if there are 2 filled black squares.</p>
         <div id="test">XX   XX</div>
         <div id="reference"><div id="div1"></div><div id="div2"></div><div id="div3"></div></div>
     </body>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/text/white-space-pre-element-001-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/text/white-space-pre-element-001-ref.xht
index f000117e8bc..fecdfb157d1 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/text/white-space-pre-element-001-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/text/white-space-pre-element-001-ref.xht
@@ -9,6 +9,7 @@
             {
                 font-family: monospace;
                 font-size: 10pt;
+                margin: 0;
             }
             div
             {
diff --git a/tests/wpt/web-platform-tests/css/CSS2/text/white-space-pre-element-001.xht b/tests/wpt/web-platform-tests/css/CSS2/text/white-space-pre-element-001.xht
index cf49962d373..7ec2ba896d4 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/text/white-space-pre-element-001.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/text/white-space-pre-element-001.xht
@@ -12,6 +12,7 @@
             {
                 font-family: monospace;
                 font-size: 10pt;
+                margin: 0;
             }
             div
             {
diff --git a/tests/wpt/web-platform-tests/css/CSS2/text/white-space-processing-040.xht b/tests/wpt/web-platform-tests/css/CSS2/text/white-space-processing-040.xht
index 857107ea283..03245a2b0a2 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/text/white-space-processing-040.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/text/white-space-processing-040.xht
@@ -16,12 +16,12 @@
             #div1
             {
                 white-space: pre-wrap;
+                margin-left: -1em;
             }
             #div2
             {
                 background: black;
                 height: 1em;
-                margin-left: 1em;
                 width: 1em;
             }
         </style>
diff --git a/tests/wpt/web-platform-tests/custom-elements/parser/parser-uses-registry-of-owner-document.html b/tests/wpt/web-platform-tests/custom-elements/parser/parser-uses-registry-of-owner-document.html
index 51e3e5ddfb1..bb256da2951 100644
--- a/tests/wpt/web-platform-tests/custom-elements/parser/parser-uses-registry-of-owner-document.html
+++ b/tests/wpt/web-platform-tests/custom-elements/parser/parser-uses-registry-of-owner-document.html
@@ -125,29 +125,27 @@ promise_test(function () {
 
 test_with_window(function (contentWindow, contentDocument) {
     const element = define_custom_element_in_window(contentWindow, 'my-custom-element', []);
-    // document-open-steps spec doesn't match most browsers; see https://github.com/whatwg/html/issues/1698.
-    // However, as explained in https://github.com/whatwg/html/issues/1698#issuecomment-298748641
-    // the custom element registry will be replaced after document-open-steps.
+    // document-open-steps spec doesn't do anything with the custom element
+    // registry, so it should just stick around.
     contentDocument.write('<my-custom-element></my-custom-element>');
 
     var instance = contentDocument.querySelector('my-custom-element');
 
     assert_true(instance instanceof contentWindow.HTMLElement);
-    assert_false(instance instanceof element.class);
+    assert_true(instance instanceof element.class);
 
 }, 'document.write() must not instantiate a custom element without a defined insertion point');
 
 test_with_window(function (contentWindow, contentDocument) {
     const element = define_custom_element_in_window(contentWindow, 'my-custom-element', []);
-    // document-open-steps spec doesn't match most browsers; see https://github.com/whatwg/html/issues/1698.
-    // However, as explained in https://github.com/whatwg/html/issues/1698#issuecomment-298748641
-    // the custom element registry will be replaced after document-open-steps.
+    // document-open-steps spec doesn't do anything with the custom element
+    // registry, so it should just stick around.
     contentDocument.writeln('<my-custom-element></my-custom-element>');
 
     var instance = contentDocument.querySelector('my-custom-element');
 
     assert_true(instance instanceof contentWindow.HTMLElement);
-    assert_false(instance instanceof element.class);
+    assert_true(instance instanceof element.class);
 
 }, 'document.writeln() must not instantiate a custom element without a defined insertion point');
 
diff --git a/tests/wpt/web-platform-tests/custom-elements/reactions/Document.html b/tests/wpt/web-platform-tests/custom-elements/reactions/Document.html
index 721ad1f4ced..1f05982a90c 100644
--- a/tests/wpt/web-platform-tests/custom-elements/reactions/Document.html
+++ b/tests/wpt/web-platform-tests/custom-elements/reactions/Document.html
@@ -130,11 +130,6 @@ test_with_window(function (contentWindow, contentDocument) {
 
 test_with_window(function (contentWindow, contentDocument) {
     contentWindow.document.open();
-    // document.open()'s spec doesn't match most browsers; see https://github.com/whatwg/html/issues/1698.
-    // However, as explained in https://github.com/whatwg/html/issues/1698#issuecomment-298748641
-    // the custom element registry will be replaced after document.open() call,
-    // So call customElements.define() after that in order to register defintion
-    // to correct custom elements registry.
     const element = define_custom_element_in_window(contentWindow, 'custom-element', []);
     contentWindow.document.write('<custom-element></custom-element>');
     assert_array_equals(element.takeLog().types(), ['constructed', 'connected']);
@@ -151,11 +146,6 @@ test_with_window(function (contentWindow, contentDocument) {
 
 test_with_window(function (contentWindow) {
     contentWindow.document.open();
-    // document.open()'s spec doesn't match most browsers; see https://github.com/whatwg/html/issues/1698.
-    // However, as explained in https://github.com/whatwg/html/issues/1698#issuecomment-298748641
-    // the custom element registry will be replaced after document.open() call,
-    // So call customElements.define() after that in order to register defintion
-    // to correct custom elements registry.
     const element = define_custom_element_in_window(contentWindow, 'custom-element', []);
     contentWindow.document.writeln('<custom-element></custom-element>');
     assert_array_equals(element.takeLog().types(), ['constructed', 'connected']);
diff --git a/tests/wpt/web-platform-tests/dom/events/Event-dispatch-on-disabled-elements.html b/tests/wpt/web-platform-tests/dom/events/Event-dispatch-on-disabled-elements.html
index 688524bd238..008eb30cf6b 100644
--- a/tests/wpt/web-platform-tests/dom/events/Event-dispatch-on-disabled-elements.html
+++ b/tests/wpt/web-platform-tests/dom/events/Event-dispatch-on-disabled-elements.html
@@ -99,29 +99,99 @@ test(() => {
 }, "Calling click() on disabled elements must not dispatch events.");
 
 promise_test(async () => {
+  // Style sheet that controls transition.
+  const style = document.createElement("style");
+  style.innerText = `
+    ${formElements.join(", ")} {
+      opacity: 0.1;
+      transition-property: opacity;
+      transition-duration: .1s;
+    }
+    .transition {
+      opacity: 1;
+    }
+  `;
+  document.head.appendChild(style);
+
+  // Triggers the transition in the element being tested.
+  const transitionTrigger = document.createElement("button");
+  transitionTrigger.innerText = "Trigger button";
+  document.body.appendChild(transitionTrigger);
+
+  // For each form element type, set up transition event handlers.
   for (const localName of formElements) {
     const elem = document.createElement(localName);
     elem.disabled = true;
     document.body.appendChild(elem);
+    const transitionPromises = [
+      "transitionrun",
+      "transitionstart",
+      "transitionend",
+    ].map(eventType => {
+      return new Promise(r => {
+        const handlerName = `on${eventType}`;
+        elem[handlerName] = ev => {
+          elem[handlerName] = null;
+          r();
+        };
+      });
+    });
 
+    // Trigger transitions specifically on this element
+    // it requires a trusted event.
+    transitionTrigger.onclick = () => {
+      elem.classList.toggle("transition");
+    };
+    await test_driver.click(transitionTrigger);
+
+    // All the events fire...
+    await Promise.all(transitionPromises);
+    elem.classList.remove("transition");
+
+    // Let's now test the "transitioncancel" event.
+    elem.ontransitionstart = () => {
+      // Cancel the transition by hiding it.
+      elem.style.display = "none";
+      elem.classList.remove("transition");
+    };
+
+    // Trigger the transition again!
+    const promiseToCancel = new Promise(r => {
+      elem.ontransitioncancel = r;
+    });
+    await test_driver.click(transitionTrigger);
+    await promiseToCancel;
+    // And we are done with this element.
+    elem.remove();
+  }
+  // And we are done with the test... clean up.
+  transitionTrigger.remove();
+  style.remove();
+}, "CSS Transitions events fire on disabled form elements");
+
+promise_test(async () => {
+  for (const localName of formElements) {
+    const elem = document.createElement(localName);
+    elem.disabled = true;
+    document.body.appendChild(elem);
     // Element is disabled, so clicking must not fire events
     let pass = true;
     elem.onclick = e => {
       pass = false;
     };
-    await test_driver.click(elem); // triggers "onclick"
+    // Disabled elements are not clickable.
+    await test_driver.click(elem);
     assert_true(
       pass,
       `${elem.constructor.name} is disabled, so onclick must not fire.`
     );
-
     // Element is (re)enabled... so this click() will fire an event.
     pass = false;
     elem.disabled = false;
     elem.onclick = () => {
       pass = true;
     };
-    await test_driver.click(elem); // triggers "onclick"
+    await test_driver.click(elem);
     assert_true(
       pass,
       `${elem.constructor.name} is enabled, so onclick must fire.`
diff --git a/tests/wpt/web-platform-tests/feature-policy/experimental-features/document-write.tentative.html b/tests/wpt/web-platform-tests/feature-policy/experimental-features/document-write.tentative.html
index f0148783f12..7e09ef7e77a 100644
--- a/tests/wpt/web-platform-tests/feature-policy/experimental-features/document-write.tentative.html
+++ b/tests/wpt/web-platform-tests/feature-policy/experimental-features/document-write.tentative.html
@@ -9,10 +9,16 @@ html, body {
   width: 100%;
 }
 </style>
-<iframe></iframe>
+<body>
 <script>
   "use strict";
 
+  function newIframe() {
+    var i = document.createElement("iframe");
+    document.body.appendChild(i);
+    return i;
+  }
+
   let iframeElement = document.querySelector("iframe");
   let url = url_base + "document-write.html";
 
@@ -42,6 +48,7 @@ html, body {
   // is enabled, all dynamic markup insertion API work as intended.
   test_cases.forEach((tc) => {
     promise_test(async() => {
+      let iframeElement = newIframe();
       await loadUrlInIframe(iframeElement, url);
       await sendMessageAndGetResponse(iframeElement.contentWindow, tc).then((response) => {
         assert_false(
@@ -62,6 +69,7 @@ html, body {
   // Disabling 'document-write' throws exception on the included API.
   test_cases.forEach((tc) => {
     promise_test(async() => {
+      let iframeElement = newIframe();
       setFeatureState(iframeElement, "document-write", "'none'");
       await loadUrlInIframe(iframeElement, url);
       await sendMessageAndGetResponse(iframeElement.contentWindow, tc).then((response) => {
@@ -80,3 +88,4 @@ html, body {
   });
 
 </script>
+</body>
diff --git a/tests/wpt/web-platform-tests/html/browsers/history/the-history-interface/traverse_the_history_write_after_load_1-1.html b/tests/wpt/web-platform-tests/html/browsers/history/the-history-interface/traverse_the_history_write_after_load_1-1.html
index af0118a01e7..945c8d81f82 100644
--- a/tests/wpt/web-platform-tests/html/browsers/history/the-history-interface/traverse_the_history_write_after_load_1-1.html
+++ b/tests/wpt/web-platform-tests/html/browsers/history/the-history-interface/traverse_the_history_write_after_load_1-1.html
@@ -5,11 +5,8 @@
   opener.pages.push(2);
   onload = function() {
     setTimeout(function() {
-      document.write("<!doctype html>3<script>opener.pages.push(3); if(!opener.started) {opener.started = true; history.go(-1);} opener.start_test_wait();<\/script>");
+      document.write("<!doctype html>3<script>opener.pages.push(3); if(!opener.started) {opener.started = true; history.go(-1);}<\/script>");
       document.close();
-      if (opener.started) {
-        opener.start_test_wait();
-      }
     }, 100);
   }
 </script>
diff --git a/tests/wpt/web-platform-tests/html/browsers/history/the-history-interface/traverse_the_history_write_after_load_1.html b/tests/wpt/web-platform-tests/html/browsers/history/the-history-interface/traverse_the_history_write_after_load_1.html
index c2c31e76f45..404d61d0cfc 100644
--- a/tests/wpt/web-platform-tests/html/browsers/history/the-history-interface/traverse_the_history_write_after_load_1.html
+++ b/tests/wpt/web-platform-tests/html/browsers/history/the-history-interface/traverse_the_history_write_after_load_1.html
@@ -11,12 +11,11 @@
     function() {
       check_result = t.step_func(
         function() {
-          if (pages.length < 4) {
+          if (pages.length < 3) {
               setTimeout(check_result, 500);
               return
           }
-          //The pass condition here is based on the idea that the spec is wrong and browsers are right
-          assert_array_equals(pages, [2, 3, 2, 3], "Pages opened during history navigation");
+          assert_array_equals(pages, [2, 3, 1], "Pages opened during history navigation");
           t.done();
         }
       )
diff --git a/tests/wpt/web-platform-tests/html/browsers/history/the-location-interface/reload_document_open_write-1.html b/tests/wpt/web-platform-tests/html/browsers/history/the-location-interface/reload_document_open_write-1.html
index 1c5a1db8ff8..e1a2e811c9c 100644
--- a/tests/wpt/web-platform-tests/html/browsers/history/the-location-interface/reload_document_open_write-1.html
+++ b/tests/wpt/web-platform-tests/html/browsers/history/the-location-interface/reload_document_open_write-1.html
@@ -3,11 +3,16 @@
 <script>
 function f() {
   opener.postMessage("original", "*");
+  if (opener.data.length >= 2) {
+    // If we proceed here, then our document.write will be racing with the
+    // setTimeout in our opener.  Just stop.
+    return;
+  }
   setTimeout(function () {
     document.open();
     document.write("<!doctype html>2<script>opener.postMessage('written', '*');<\/script>");
     document.close();
-  }), 100;
+  });
 }
 
 window.onload = f
diff --git a/tests/wpt/web-platform-tests/html/browsers/history/the-location-interface/reload_document_open_write.html b/tests/wpt/web-platform-tests/html/browsers/history/the-location-interface/reload_document_open_write.html
index 0fc2a2c3d8e..905ef887430 100644
--- a/tests/wpt/web-platform-tests/html/browsers/history/the-location-interface/reload_document_open_write.html
+++ b/tests/wpt/web-platform-tests/html/browsers/history/the-location-interface/reload_document_open_write.html
@@ -11,11 +11,11 @@ var data = [];
 
 window.onmessage = t.step_func(function(e) {
   data.push(e.data);
-  if (data.length < 3) {
+  if (data.length == 2) {
     win.location.reload();
-  } else {
+  } else if (data.length >= 3) {
     setTimeout(t.step_func(function() {
-      assert_array_equals(data, ["original", "written", "written"]);
+      assert_array_equals(data, ["original", "written", "original"]);
       t.done();
     }), 500);
   }
diff --git a/tests/wpt/web-platform-tests/html/browsers/the-window-object/BarProp.window.js b/tests/wpt/web-platform-tests/html/browsers/the-window-object/BarProp.window.js
new file mode 100644
index 00000000000..27a357cab59
--- /dev/null
+++ b/tests/wpt/web-platform-tests/html/browsers/the-window-object/BarProp.window.js
@@ -0,0 +1,59 @@
+function assert_barProps(barPropObjects, visible) {
+  let lastBarProp = undefined;
+  for (const currentBarProp of barPropObjects) {
+    assert_not_equals(currentBarProp, lastBarProp, "BarBrop objects of different properties are identical");
+    assert_equals(currentBarProp.visible, visible, "a BarProp's visible is wrong");
+    lastBarProp = currentBarProp;
+  }
+}
+
+function assert_identical_barProps(barProps, w, oldBarPropObjects, visible) {
+  barProps.map(val => w[val]).map((val, index) => {
+    assert_equals(val, oldBarPropObjects[index], "BarProp identity not preserved");
+  });
+  assert_barProps(oldBarPropObjects, visible);
+}
+
+async_test(t => {
+  const frame = document.body.appendChild(document.createElement("iframe")),
+        frameW = frame.contentWindow,
+        barProps = ["locationbar", "menubar", "personalbar", "scrollbars", "statusbar", "toolbar"],
+        barPropObjects = barProps.map(val => frameW[val]);
+
+  assert_barProps(barPropObjects, true);
+  frame.remove();
+  assert_identical_barProps(barProps, frameW, barPropObjects, false);
+  t.step_timeout(() => {
+    assert_identical_barProps(barProps, frameW, barPropObjects, false);
+    t.done();
+  }, 0);
+}, "BarBrop objects of a nested Window");
+
+async_test(t => {
+  const openee = window.open("/common/blank.html"),
+        barProps = ["locationbar", "menubar", "personalbar", "scrollbars", "statusbar", "toolbar"],
+        barPropObjects = barProps.map(val => openee[val]);
+
+  // This is used to demonstrate that the Document is replaced while the global object (not the
+  // global this object) stays the same
+  openee.tiedToGlobalObject = openee.document;
+
+  assert_barProps(barPropObjects, true);
+  openee.onload = t.step_func(() => {
+    assert_own_property(openee, "tiedToGlobalObject");
+    assert_not_equals(openee.tiedToGlobalObject, openee.document);
+
+    assert_identical_barProps(barProps, openee, barPropObjects, true);
+
+    openee.onunload = t.step_func(() => {
+      assert_identical_barProps(barProps, openee, barPropObjects, true);
+      t.step_timeout(() => {
+        assert_identical_barProps(barProps, openee, barPropObjects, false);
+        t.done();
+      }, 0);
+    });
+
+    openee.close();
+    assert_identical_barProps(barProps, openee, barPropObjects, true);
+  });
+}, "BarProp objects of an auxiliary Window");
diff --git a/tests/wpt/web-platform-tests/html/browsers/the-window-object/the-windowproxy-object/test-window-proxy-locationbar-manual.html b/tests/wpt/web-platform-tests/html/browsers/the-window-object/the-windowproxy-object/test-window-proxy-locationbar-manual.html
deleted file mode 100644
index 4331b3b6600..00000000000
--- a/tests/wpt/web-platform-tests/html/browsers/the-window-object/the-windowproxy-object/test-window-proxy-locationbar-manual.html
+++ /dev/null
@@ -1,29 +0,0 @@
-<!DOCTYPE html>
-<html lang="en">
-<head>
-    <meta charset="utf-8">
-    <title>Window Proxy locationbar visible flag Test</title>
-    <link rel="author" title='JuneyoungOh' href="juneyoung85@gmail.com">
-    <script src="/resources/testharness.js"></script>
-    <script src="/resources/testharnessreport.js"></script>
-</head>
-<body>
-    <h1>Description</h1>
-    <p>WindowProxy.locationbar Test</p>
-
-    <h1>Manual Test Steps:</h1>
-    <ol>
-        <li>Make the locationbar visible in the user agent before executing this test.</li>
-        <li>You may need to manually reload afterwards.</li>
-    </ol>
-
-    <div id="log"></div>
-
-    <script>
-    test(function() {
-        assert_not_equals(typeof window.locationbar, undefined, 'window.locationbar is undefined');
-        assert_true(window.locationbar.visible)
-    }, "window.locationbar.visible");
-    </script>
-</body>
-</html>
\ No newline at end of file
diff --git a/tests/wpt/web-platform-tests/html/browsers/the-window-object/the-windowproxy-object/test-window-proxy-menubar-manual.html b/tests/wpt/web-platform-tests/html/browsers/the-window-object/the-windowproxy-object/test-window-proxy-menubar-manual.html
deleted file mode 100644
index 43345934a58..00000000000
--- a/tests/wpt/web-platform-tests/html/browsers/the-window-object/the-windowproxy-object/test-window-proxy-menubar-manual.html
+++ /dev/null
@@ -1,29 +0,0 @@
-<!DOCTYPE html>
-<html lang="en">
-<head>
-    <meta charset="utf-8">
-    <title>Window Proxy menubar visible flag Test</title>
-    <link rel="author" title='JuneyoungOh' href="juneyoung85@gmail.com">
-    <script src="/resources/testharness.js"></script>
-    <script src="/resources/testharnessreport.js"></script>
-</head>
-<body>
-    <h1>Description</h1>
-    <p>WindowProxy.menubar Test</p>
-
-    <h1>Manual Test Steps:</h1>
-    <ol>
-        <li>Make the menubar visible in the user agent before executing this test.</li>
-        <li>You may need to manually reload afterwards.</li>
-    </ol>
-
-    <div id="log"></div>
-
-    <script>
-    test(function() {
-        assert_not_equals(typeof window.menubar, undefined, 'window.menubar is undefined');
-        assert_true(window.menubar.visible);
-    }, "window.menubar.visible");
-    </script>
-</body>
-</html>
\ No newline at end of file
diff --git a/tests/wpt/web-platform-tests/html/browsers/the-window-object/the-windowproxy-object/test-window-proxy-personalbar-manual.html b/tests/wpt/web-platform-tests/html/browsers/the-window-object/the-windowproxy-object/test-window-proxy-personalbar-manual.html
deleted file mode 100644
index d7f109840dc..00000000000
--- a/tests/wpt/web-platform-tests/html/browsers/the-window-object/the-windowproxy-object/test-window-proxy-personalbar-manual.html
+++ /dev/null
@@ -1,29 +0,0 @@
-<!doctype html>
-<html lang="en">
-<head>
-    <meta charset="utf-8" />
-    <title>Window Proxy personalbar visible flag Test</title>
-    <link rel="author" title="vanessa" href="mailto:vanessaohsy@gmail.com">
-    <script type="text/javascript" src="/resources/testharness.js"></script>
-    <script type="text/javascript" src="/resources/testharnessreport.js"></script>
-</head>
-<body>
-    <h1>Description</h1>
-    <p>WindowProxy.personalbar Test</p>
-
-    <h1>Manual Test Steps:</h1>
-    <ol>
-        <li>Make the personalbar visible in the user agent before executing this test.</li>
-        <li>You may need to manually reload afterwards.</li>
-    </ol>
-
-    <div id="log"></div>
-
-    <script type="text/javascript" >
-    test(function () {
-        assert_not_equals(window.personalbar, undefined, "window.personalbar is undefined");
-        assert_true(window.personalbar.visible, "window.personalbar.visible");
-    });
-    </script>
-</body>
-</html>
\ No newline at end of file
diff --git a/tests/wpt/web-platform-tests/html/browsers/the-window-object/the-windowproxy-object/test-window-proxy-scrollbars-manual.html b/tests/wpt/web-platform-tests/html/browsers/the-window-object/the-windowproxy-object/test-window-proxy-scrollbars-manual.html
deleted file mode 100644
index c412bdbe5ee..00000000000
--- a/tests/wpt/web-platform-tests/html/browsers/the-window-object/the-windowproxy-object/test-window-proxy-scrollbars-manual.html
+++ /dev/null
@@ -1,29 +0,0 @@
-<!doctype html>
-<html lang="en">
-<head>
-    <meta charset="utf-8" />
-    <title>Window Proxy scrollbars visible flag Test</title>
-    <link rel="author" title="vanessa" href="vanessaohsy@gmail.com">
-    <script type="text/javascript" src="/resources/testharness.js"></script>
-    <script type="text/javascript" src="/resources/testharnessreport.js"></script>
-</head>
-<body>
-    <h1>Description</h1>
-    <p>WindowProxy.scrollbars Test</p>
-
-    <h1>Manual Test Steps:</h1>
-    <ol>
-        <li>Make the scrollbars visible in the user agent before executing this test.</li>
-        <li>You may need to manually reload afterwards.</li>
-    </ol>
-
-    <div id="log"></div>
-
-    <script type="text/javascript" >
-    test(function () {
-        assert_not_equals(window.scrollbars, undefined, "window.scrollbars is undefined");
-        assert_true(window.scrollbars.visible, "window.scrollbars.visible");
-    });
-    </script>
-</body>
-</html>
diff --git a/tests/wpt/web-platform-tests/html/browsers/the-window-object/the-windowproxy-object/test-window-proxy-statusbar-manual.html b/tests/wpt/web-platform-tests/html/browsers/the-window-object/the-windowproxy-object/test-window-proxy-statusbar-manual.html
deleted file mode 100644
index b09fcc01758..00000000000
--- a/tests/wpt/web-platform-tests/html/browsers/the-window-object/the-windowproxy-object/test-window-proxy-statusbar-manual.html
+++ /dev/null
@@ -1,29 +0,0 @@
-<!doctype html>
-<html>
-<head>
-    <meta charset="utf-8" />
-    <title>WindowProxy statusbar visible flag Test</title>
-    <link rel="author" title="dokenzy" href="dokenzy@gmail.com">
-    <script type="text/javascript" src="/resources/testharness.js"></script>
-    <script type="text/javascript" src="/resources/testharnessreport.js"></script>
-</head>
-<body>
-    <h1>Description</h1>
-    <p>WindowProxy.statusbar Test</p>
-
-    <h1>Manual Test Steps:</h1>
-    <ol>
-        <li>Make the statusbar visible in the user agent before executing this test.</li>
-        <li>You may need to manually reload afterwards.</li>
-    </ol>
-
-    <div id="log"></div>
-
-    <script type="text/javascript" >
-    test(function () {
-        assert_not_equals(typeof window.statusbar.visible, undefined, 'window.statusbar.visible');
-        assert_true(window.statusbar.visible, 'window.statusbar.visible');
-    }, "BarProp attribute: window.statusbar.visible");
-    </script>
-</body>
-</html>
\ No newline at end of file
diff --git a/tests/wpt/web-platform-tests/html/browsers/the-window-object/the-windowproxy-object/test-window-proxy-toolbar-manual.html b/tests/wpt/web-platform-tests/html/browsers/the-window-object/the-windowproxy-object/test-window-proxy-toolbar-manual.html
deleted file mode 100644
index ba465443151..00000000000
--- a/tests/wpt/web-platform-tests/html/browsers/the-window-object/the-windowproxy-object/test-window-proxy-toolbar-manual.html
+++ /dev/null
@@ -1,29 +0,0 @@
-<!doctype html>
-<html>
-<head>
-    <meta charset="utf-8" />
-    <title>WindowProxy toolbar visible flag Test</title>
-    <link rel="author" title="dokenzy" href="dokenzy@gmail.com">
-    <script type="text/javascript" src="/resources/testharness.js"></script>
-    <script type="text/javascript" src="/resources/testharnessreport.js"></script>
-</head>
-<body>
-    <h1>Description</h1>
-    <p>WindowProxy.toolbar Test</p>
-
-    <h1>Manual Test Steps:</h1>
-    <ol>
-        <li>Make the toolbar visible in the user agent before executing this test.</li>
-        <li>You may need to manually reload afterwards.</li>
-    </ol>
-
-    <div id="log"></div>
-
-    <script type="text/javascript" >
-    test(function () {
-        assert_not_equals(typeof window.toolbar.visible, undefined, 'window.toolbar.visible');
-        assert_true(window.toolbar.visible, 'window.toolbar.visible');
-    }, "BarProp attribute: window.toolbar.visible");
-    </script>
-</body>
-</html>
\ No newline at end of file
diff --git a/tests/wpt/web-platform-tests/html/rendering/non-replaced-elements/tables/table-border-3-ref.html b/tests/wpt/web-platform-tests/html/rendering/non-replaced-elements/tables/table-border-3-ref.html
new file mode 100644
index 00000000000..e465fd433c9
--- /dev/null
+++ b/tests/wpt/web-platform-tests/html/rendering/non-replaced-elements/tables/table-border-3-ref.html
@@ -0,0 +1,91 @@
+<!DOCTYPE html>
+<head>
+  <title>Reference for default 'border-color' on table (with 'color' set)</title>
+  <meta charset="utf-8">
+  <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com">
+  <style>
+    * {
+      border-color: teal;
+      /* This only affects the elements that we specify 'border-style' on: */
+      border-width: 6px;
+    }
+
+    table {
+      height: 30px;
+      width: 30px;
+      border-spacing: 0;
+
+      /* To test in "rows": */
+      float: left;
+      margin: 1px;
+    }
+    br {
+      clear: both;
+    }
+
+    .dotted {
+      border-style: dotted;
+    }
+    .dashed {
+      border-style: dashed;
+    }
+    .solid {
+      border-style: solid;
+    }
+    .double {
+      border-style: double;
+    }
+    .groove {
+      border-style: groove;
+    }
+    .ridge {
+      border-style: ridge;
+    }
+    .inset {
+      border-style: inset;
+    }
+    .outset {
+      border-style: outset;
+    }
+  </style>
+</head>
+
+<table class="dotted"><td></td></table>
+<table><th class="dotted"></th></table>
+<table><td class="dotted"></td></table>
+<br>
+
+<table class="dashed"><td></td></table>
+<table><th class="dashed"></th></table>
+<table><td class="dashed"></td></table>
+<br>
+
+<table class="solid"><td></td></table>
+<table><th class="solid"></th></table>
+<table><td class="solid"></td></table>
+<br>
+
+<table class="double"><td></td></table>
+<table><th class="double"></th></table>
+<table><td class="double"></td></table>
+<br>
+
+<table class="groove"><td></td></table>
+<table><th class="groove"></th></table>
+<table><td class="groove"></td></table>
+<br>
+
+<table class="ridge"><td></td></table>
+<table><th class="ridge"></th></table>
+<table><td class="ridge"></td></table>
+<br>
+
+<table class="inset"><td></td></table>
+<table><th class="inset"></th></table>
+<table><td class="inset"></td></table>
+<br>
+
+<table class="outset"><td></td></table>
+<table><th class="outset"></th></table>
+<table><td class="outset"></td></table>
+<br>
diff --git a/tests/wpt/web-platform-tests/html/rendering/non-replaced-elements/tables/table-border-3q.html b/tests/wpt/web-platform-tests/html/rendering/non-replaced-elements/tables/table-border-3q.html
new file mode 100644
index 00000000000..4b481194dc9
--- /dev/null
+++ b/tests/wpt/web-platform-tests/html/rendering/non-replaced-elements/tables/table-border-3q.html
@@ -0,0 +1,95 @@
+<!-- Intentionally omitting doctype, to test quirks mode. -->
+<head>
+  <title>Testing default 'border-color' on table (with 'color' set), in quirks mode</title>
+  <meta charset="utf-8">
+  <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com">
+  <link rel="help" href="https://html.spec.whatwg.org/multipage/rendering.html#tables-2">
+  <link rel="match" href="table-border-3-ref.html">
+  <style>
+    * {
+      /* This sets the used value of 'currentColor', which is what should be
+         used for all border-coloring in this test: */
+      color: teal;
+      /* This only affects the elements that we specify 'border-style' on: */
+      border-width: 6px;
+    }
+
+    table {
+      height: 30px;
+      width: 30px;
+      border-spacing: 0;
+
+      /* To test in "rows": */
+      float: left;
+      margin: 1px;
+    }
+    br {
+      clear: both;
+    }
+
+    .dotted {
+      border-style: dotted;
+    }
+    .dashed {
+      border-style: dashed;
+    }
+    .solid {
+      border-style: solid;
+    }
+    .double {
+      border-style: double;
+    }
+    .groove {
+      border-style: groove;
+    }
+    .ridge {
+      border-style: ridge;
+    }
+    .inset {
+      border-style: inset;
+    }
+    .outset {
+      border-style: outset;
+    }
+  </style>
+</head>
+
+<table class="dotted"><td></td></table>
+<table><th class="dotted"></th></table>
+<table><td class="dotted"></td></table>
+<br>
+
+<table class="dashed"><td></td></table>
+<table><th class="dashed"></th></table>
+<table><td class="dashed"></td></table>
+<br>
+
+<table class="solid"><td></td></table>
+<table><th class="solid"></th></table>
+<table><td class="solid"></td></table>
+<br>
+
+<table class="double"><td></td></table>
+<table><th class="double"></th></table>
+<table><td class="double"></td></table>
+<br>
+
+<table class="groove"><td></td></table>
+<table><th class="groove"></th></table>
+<table><td class="groove"></td></table>
+<br>
+
+<table class="ridge"><td></td></table>
+<table><th class="ridge"></th></table>
+<table><td class="ridge"></td></table>
+<br>
+
+<table class="inset"><td></td></table>
+<table><th class="inset"></th></table>
+<table><td class="inset"></td></table>
+<br>
+
+<table class="outset"><td></td></table>
+<table><th class="outset"></th></table>
+<table><td class="outset"></td></table>
+<br>
diff --git a/tests/wpt/web-platform-tests/html/rendering/non-replaced-elements/tables/table-border-3s.html b/tests/wpt/web-platform-tests/html/rendering/non-replaced-elements/tables/table-border-3s.html
new file mode 100644
index 00000000000..c4c019c8eb3
--- /dev/null
+++ b/tests/wpt/web-platform-tests/html/rendering/non-replaced-elements/tables/table-border-3s.html
@@ -0,0 +1,95 @@
+<!DOCTYPE html>
+<head>
+  <title>Testing default 'border-color' on table (with 'color' set), in standards mode</title>
+  <meta charset="utf-8">
+  <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com">
+  <link rel="help" href="https://html.spec.whatwg.org/multipage/rendering.html#tables-2">
+  <link rel="match" href="table-border-3-ref.html">
+  <style>
+    * {
+      /* This sets the used value of 'currentColor', which is what should be
+         used for all border-coloring in this test: */
+      color: teal;
+      /* This only affects the elements that we specify 'border-style' on: */
+      border-width: 6px;
+    }
+
+    table {
+      height: 30px;
+      width: 30px;
+      border-spacing: 0;
+
+      /* To test in "rows": */
+      float: left;
+      margin: 1px;
+    }
+    br {
+      clear: both;
+    }
+
+    .dotted {
+      border-style: dotted;
+    }
+    .dashed {
+      border-style: dashed;
+    }
+    .solid {
+      border-style: solid;
+    }
+    .double {
+      border-style: double;
+    }
+    .groove {
+      border-style: groove;
+    }
+    .ridge {
+      border-style: ridge;
+    }
+    .inset {
+      border-style: inset;
+    }
+    .outset {
+      border-style: outset;
+    }
+  </style>
+</head>
+
+<table class="dotted"><td></td></table>
+<table><th class="dotted"></th></table>
+<table><td class="dotted"></td></table>
+<br>
+
+<table class="dashed"><td></td></table>
+<table><th class="dashed"></th></table>
+<table><td class="dashed"></td></table>
+<br>
+
+<table class="solid"><td></td></table>
+<table><th class="solid"></th></table>
+<table><td class="solid"></td></table>
+<br>
+
+<table class="double"><td></td></table>
+<table><th class="double"></th></table>
+<table><td class="double"></td></table>
+<br>
+
+<table class="groove"><td></td></table>
+<table><th class="groove"></th></table>
+<table><td class="groove"></td></table>
+<br>
+
+<table class="ridge"><td></td></table>
+<table><th class="ridge"></th></table>
+<table><td class="ridge"></td></table>
+<br>
+
+<table class="inset"><td></td></table>
+<table><th class="inset"></th></table>
+<table><td class="inset"></td></table>
+<br>
+
+<table class="outset"><td></td></table>
+<table><th class="outset"></th></table>
+<table><td class="outset"></td></table>
+<br>
diff --git a/tests/wpt/web-platform-tests/html/semantics/embedded-content/media-elements/track/track-element/track-change-event.html b/tests/wpt/web-platform-tests/html/semantics/embedded-content/media-elements/track/track-element/track-change-event.html
index a9cd73435a3..7a17dee2a75 100644
--- a/tests/wpt/web-platform-tests/html/semantics/embedded-content/media-elements/track/track-element/track-change-event.html
+++ b/tests/wpt/web-platform-tests/html/semantics/embedded-content/media-elements/track/track-element/track-change-event.html
@@ -12,7 +12,7 @@ async_test(function(t) {
     track.mode = 'showing';
     assert_equals(video.textTracks.length, 1);
 
-    video.textTracks.onchange = t.step_func_done(function() {
+    video.textTracks.onchange = t.step_func_done(function(event) {
         assert_equals(event.target, video.textTracks);
         assert_true(event instanceof Event, 'instanceof');
         assert_false(event.hasOwnProperty('track'), 'unexpected property found: "track"');
diff --git a/tests/wpt/web-platform-tests/html/webappapis/dynamic-markup-insertion/closing-the-input-stream/load-event-after-location-set-during-write.window.js b/tests/wpt/web-platform-tests/html/webappapis/dynamic-markup-insertion/closing-the-input-stream/load-event-after-location-set-during-write.window.js
new file mode 100644
index 00000000000..d5c8469bafa
--- /dev/null
+++ b/tests/wpt/web-platform-tests/html/webappapis/dynamic-markup-insertion/closing-the-input-stream/load-event-after-location-set-during-write.window.js
@@ -0,0 +1,19 @@
+// Make sure that the load event for an iframe doesn't fire at the
+// point when a navigation triggered by document.write() starts in it,
+// but rather when that navigation completes.
+
+async_test(t => {
+  const frame = document.body.appendChild(document.createElement("iframe"));
+  const doc = frame.contentDocument;
+  const url = URL.createObjectURL(new Blob(["PASS"], { type: "text/html"}));
+
+  frame.onload = t.step_func_done(() => {
+    assert_equals(frame.contentDocument.body.textContent, "PASS",
+                  "Why is our load event firing before the new document loaded?");
+  });
+
+  doc.open();
+  doc.write(`FAIL<script>location = "${url}"</` + "script>");
+  doc.close();
+}, "Setting location from document.write() call should not trigger load event until that load completes");
+
diff --git a/tests/wpt/web-platform-tests/html/webappapis/dynamic-markup-insertion/opening-the-input-stream/resources/http-refresh.py b/tests/wpt/web-platform-tests/html/webappapis/dynamic-markup-insertion/opening-the-input-stream/resources/http-refresh.py
index d2acd4361f9..d323f967b21 100644
--- a/tests/wpt/web-platform-tests/html/webappapis/dynamic-markup-insertion/opening-the-input-stream/resources/http-refresh.py
+++ b/tests/wpt/web-platform-tests/html/webappapis/dynamic-markup-insertion/opening-the-input-stream/resources/http-refresh.py
@@ -1,3 +1,3 @@
 def main(request, response):
     time = request.url_parts.query if request.url_parts.query else '0'
-    return 200, [['Refresh', time]], ''
+    return 200, [('Refresh', time), ('Content-Type', "text/html")], ''
diff --git a/tests/wpt/web-platform-tests/html/webappapis/update-rendering/child-document-raf-order.html b/tests/wpt/web-platform-tests/html/webappapis/update-rendering/child-document-raf-order.html
new file mode 100644
index 00000000000..222c1af444e
--- /dev/null
+++ b/tests/wpt/web-platform-tests/html/webappapis/update-rendering/child-document-raf-order.html
@@ -0,0 +1,118 @@
+<!DOCTYPE HTML>
+<meta charset=UTF-8>
+<title>Ordering of steps in "Update the Rendering" - child document requestAnimationFrame order</title>
+<link rel="help" href="https://html.spec.whatwg.org/multipage/webappapis.html#update-the-rendering">
+<link rel="author" title="L. David Baron" href="https://dbaron.org/">
+<link rel="author" title="Mozilla" href="https://mozilla.org/">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+
+<div id=log></div>
+
+<!--
+
+This test tests the interaction of just two substeps of the "Update the
+rendering" steps in
+https://html.spec.whatwg.org/multipage/webappapis.html#update-the-rendering
+
+These are:
+
+ 1. Let docs be the list of Document objects associated with the event
+    loop in question, sorted arbitrarily except that the following
+    conditions must be met:
+
+    - Any Document B that is nested through a Document A must be listed
+      after A in the list.
+
+    - If there are two documents A and B whose browsing contexts are
+      both nested browsing contexts and their browsing context
+      containers are both elements in the same Document C, then the
+      order of A and B in the list must match the relative tree order of
+      their respective browsing context containers in C.
+
+    In the steps below that iterate over docs, each Document must be
+    processed in the order it is found in the list.
+
+and later:
+
+10. For each fully active Document in docs, run the animation frame
+    callbacks for that Document, passing in now as the timestamp.
+
+
+It tests this by setting up a tree of three documents, two children and
+one parent, and testing for the relative order of the animation frame
+callbacks for each.
+
+-->
+
+<script>
+
+async_test(function (t) {
+  step_timeout(setup, 0);
+
+  let first_frame, second_frame;
+
+  let notification_sequence = [];
+
+  function setup() {
+    // Start by creating two iframes.  To test (a little bit) the rule
+    // about iteration being in document order, insert them in the reverse
+    // order of creation.
+    let body = document.body;
+    function make_iframe() {
+      let iframe = document.createElement("iframe");
+      iframe.setAttribute("srcdoc", "<body onload='parent.child_ready()'>");
+      iframe.setAttribute("width", "30");
+      iframe.setAttribute("height", "15");
+      return iframe;
+    }
+    second_frame = make_iframe();
+    body.prepend(second_frame);
+    first_frame = make_iframe();
+    body.prepend(first_frame);
+
+    let children_waiting = 2;
+    window.child_ready = function() {
+      if (--children_waiting == 0) {
+        // Call requestAnimationFrame in neither the order nor the reverse
+        // of the order in which we expect to be called (which is parent,
+        // first, second).
+        first_frame.contentWindow.requestAnimationFrame(first_child_raf);
+        second_frame.contentWindow.requestAnimationFrame(second_child_raf);
+        window.requestAnimationFrame(parent_raf);
+      }
+    };
+  }
+
+  let parent_raf = t.step_func(function() {
+    notification_sequence.push("parent_raf");
+
+    // Request another notification to help ensure we're getting expected behavior.
+    window.requestAnimationFrame(parent_raf);
+  });
+
+  let first_child_raf = t.step_func(function() {
+    notification_sequence.push("first_child_raf");
+
+    // Request another notification to help ensure we're getting expected behavior.
+    first_frame.contentWindow.requestAnimationFrame(first_child_raf);
+  });
+
+  let second_child_raf = t.step_func(function() {
+    notification_sequence.push("second_child_raf");
+
+    // Request another notification to help ensure we're getting expected behavior.
+    second_frame.contentWindow.requestAnimationFrame(second_child_raf);
+
+    step_timeout(finish, 0);
+  });
+
+  let finish = t.step_func(function() {
+    assert_array_equals(notification_sequence,
+                        ["parent_raf", "first_child_raf", "second_child_raf"],
+                        "expected order of notifications");
+    t.done();
+  });
+});
+
+</script>
diff --git a/tests/wpt/web-platform-tests/interfaces/DOM-Parsing.idl b/tests/wpt/web-platform-tests/interfaces/DOM-Parsing.idl
index f3a13342f5e..c5de42b0cfc 100644
--- a/tests/wpt/web-platform-tests/interfaces/DOM-Parsing.idl
+++ b/tests/wpt/web-platform-tests/interfaces/DOM-Parsing.idl
@@ -18,12 +18,18 @@ enum SupportedType {
 
 [Constructor, Exposed=Window]
 
-  interface XMLSerializer {
+interface XMLSerializer {
   DOMString serializeToString(Node root);
 };
 
-partial interface Element {
+interface mixin InnerHTML {
   [CEReactions, TreatNullAs=EmptyString] attribute DOMString innerHTML;
+};
+
+Element includes InnerHTML;
+ShadowRoot includes InnerHTML;
+
+partial interface Element {
   [CEReactions, TreatNullAs=EmptyString] attribute DOMString outerHTML;
   [CEReactions] void insertAdjacentHTML(DOMString position, DOMString text);
 };
diff --git a/tests/wpt/web-platform-tests/interfaces/FileAPI.idl b/tests/wpt/web-platform-tests/interfaces/FileAPI.idl
index 1fd6bac945b..15b2e5582fe 100644
--- a/tests/wpt/web-platform-tests/interfaces/FileAPI.idl
+++ b/tests/wpt/web-platform-tests/interfaces/FileAPI.idl
@@ -12,8 +12,8 @@ interface Blob {
   readonly attribute DOMString type;
 
   // slice Blob into byte-ranged chunks
-  Blob slice([Clamp] optional long long start,
-            [Clamp] optional long long end,
+  Blob slice(optional [Clamp] long long start,
+            optional [Clamp] long long end,
             optional DOMString contentType);
 };
 
@@ -75,7 +75,6 @@ interface FileReader: EventTarget {
   attribute EventHandler onabort;
   attribute EventHandler onerror;
   attribute EventHandler onloadend;
-
 };
 
 [Constructor, Exposed=(DedicatedWorker,SharedWorker)]
@@ -90,6 +89,6 @@ interface FileReaderSync {
 
 [Exposed=(Window,DedicatedWorker,SharedWorker)]
 partial interface URL {
-  static DOMString createObjectURL(Blob blob);
+  static DOMString createObjectURL((Blob or MediaSource) obj);
   static void revokeObjectURL(DOMString url);
 };
diff --git a/tests/wpt/web-platform-tests/interfaces/IndexedDB.idl b/tests/wpt/web-platform-tests/interfaces/IndexedDB.idl
index 868338b3080..21ff252fffe 100644
--- a/tests/wpt/web-platform-tests/interfaces/IndexedDB.idl
+++ b/tests/wpt/web-platform-tests/interfaces/IndexedDB.idl
@@ -171,6 +171,7 @@ interface IDBCursor {
   readonly attribute IDBCursorDirection direction;
   readonly attribute any key;
   readonly attribute any primaryKey;
+  readonly attribute IDBRequest request;
 
   void advance([EnforceRange] unsigned long count);
   void continue(optional any key);
diff --git a/tests/wpt/web-platform-tests/interfaces/clipboard-apis.idl b/tests/wpt/web-platform-tests/interfaces/clipboard-apis.idl
index e48ca6a5e46..99d1155a3e3 100644
--- a/tests/wpt/web-platform-tests/interfaces/clipboard-apis.idl
+++ b/tests/wpt/web-platform-tests/interfaces/clipboard-apis.idl
@@ -16,13 +16,42 @@ partial interface Navigator {
   [SecureContext, SameObject] readonly attribute Clipboard clipboard;
 };
 
+typedef sequence<ClipboardItem> ClipboardItems;
+
 [SecureContext, Exposed=Window] interface Clipboard : EventTarget {
-  Promise<DataTransfer> read();
+  Promise<ClipboardItems> read();
   Promise<DOMString> readText();
-  Promise<void> write(DataTransfer data);
+  Promise<void> write(ClipboardItems data);
   Promise<void> writeText(DOMString data);
 };
 
+typedef (DOMString or Blob) ClipboardItemDataType;
+typedef Promise<ClipboardItemDataType> ClipboardItemData;
+
+callback ClipboardItemDelayedCallback = ClipboardItemData ();
+
+[Constructor(record<DOMString, ClipboardItemData> items,
+    optional ClipboardItemOptions options),
+ Exposed=Window] interface ClipboardItem {
+  static ClipboardItem createDelayed(
+      record<DOMString, ClipboardItemDelayedCallback> items,
+      optional ClipboardItemOptions options);
+
+  readonly attribute PresentationStyle presentationStyle;
+  readonly attribute long long lastModified;
+  readonly attribute boolean delayed;
+
+  readonly attribute FrozenArray<DOMString> types;
+
+  Promise<Blob> getType(DOMString type);
+};
+
+enum PresentationStyle { "unspecified", "inline", "attachment" };
+
+dictionary ClipboardItemOptions {
+  PresentationStyle presentationStyle = "unspecified";
+};
+
 dictionary ClipboardPermissionDescriptor : PermissionDescriptor {
   boolean allowWithoutGesture = false;
 };
diff --git a/tests/wpt/web-platform-tests/interfaces/css-layout-api.idl b/tests/wpt/web-platform-tests/interfaces/css-layout-api.idl
index 9440684a26c..31ab6eb4d0b 100644
--- a/tests/wpt/web-platform-tests/interfaces/css-layout-api.idl
+++ b/tests/wpt/web-platform-tests/interfaces/css-layout-api.idl
@@ -134,7 +134,7 @@ dictionary FragmentResultOptions {
     BreakTokenOptions breakToken = null;
 };
 
-[Constructor(FragmentResultOptions)]
+[Constructor(optional FragmentResultOptions options)]
 interface FragmentResult {
     readonly attribute double inlineSize;
     readonly attribute double blockSize;
diff --git a/tests/wpt/web-platform-tests/interfaces/css-pseudo.idl b/tests/wpt/web-platform-tests/interfaces/css-pseudo.idl
index c51f2217f34..2b557e65316 100644
--- a/tests/wpt/web-platform-tests/interfaces/css-pseudo.idl
+++ b/tests/wpt/web-platform-tests/interfaces/css-pseudo.idl
@@ -4,24 +4,11 @@
 // Source: CSS Pseudo-Elements Module Level 4 (https://drafts.csswg.org/css-pseudo-4/)
 
 [Exposed=Window]
-interface CSSPseudoElement {
+interface CSSPseudoElement : EventTarget {
     readonly attribute CSSOMString type;
     readonly attribute Element element;
-    readonly attribute CSSStyleDeclaration style;
 };
 
-CSSPseudoElement implements EventTarget;
-
-[Exposed=Window]
-interface CSSPseudoElementList {
-    readonly attribute unsigned long length;
-    CSSPseudoElement item(unsigned long index);
-    CSSPseudoElement getByType(CSSOMString type);
-                     // replies null if no pseudo-element exists for
-                     //     the requested type
-};
-
-partial interface Window {
-  CSSPseudoElementList getPseudoElements(Element elt,
-                                       CSSOMString type);
+partial interface Element {
+  CSSPseudoElement? pseudo(CSSOMString type);
 };
diff --git a/tests/wpt/web-platform-tests/interfaces/css-regions.idl b/tests/wpt/web-platform-tests/interfaces/css-regions.idl
index 1e2396007d0..254ef53b69b 100644
--- a/tests/wpt/web-platform-tests/interfaces/css-regions.idl
+++ b/tests/wpt/web-platform-tests/interfaces/css-regions.idl
@@ -25,11 +25,9 @@ interface NamedFlow : EventTarget {
   sequence<Region> getRegionsByContent(Node node);
 };
 
-[Exposed=Window,
- NoInterfaceObject]
 interface Region {
   readonly attribute CSSOMString regionOverset;
   sequence<Range>? getRegionFlowRanges();
 };
 
-Element implements Region;
+Element includes Region;
diff --git a/tests/wpt/web-platform-tests/interfaces/feature-policy.idl b/tests/wpt/web-platform-tests/interfaces/feature-policy.idl
index 2a042158016..3ded1e9b0c6 100644
--- a/tests/wpt/web-platform-tests/interfaces/feature-policy.idl
+++ b/tests/wpt/web-platform-tests/interfaces/feature-policy.idl
@@ -1,7 +1,7 @@
 // GENERATED CONTENT - DO NOT EDIT
 // Content was automatically extracted by Reffy into reffy-reports
 // (https://github.com/tidoust/reffy-reports)
-// Source: Feature Policy (https://wicg.github.io/feature-policy/)
+// Source: Feature Policy (https://w3c.github.io/webappsec-feature-policy/)
 
 [NoInterfaceObject]
 interface FeaturePolicy {
diff --git a/tests/wpt/web-platform-tests/interfaces/generic-sensor.idl b/tests/wpt/web-platform-tests/interfaces/generic-sensor.idl
index 2e7aacbec17..2921c50a65e 100644
--- a/tests/wpt/web-platform-tests/interfaces/generic-sensor.idl
+++ b/tests/wpt/web-platform-tests/interfaces/generic-sensor.idl
@@ -3,7 +3,7 @@
 // (https://github.com/tidoust/reffy-reports)
 // Source: Generic Sensor API (https://w3c.github.io/sensors/)
 
-[SecureContext, Exposed=Window]
+[SecureContext, Exposed=(DedicatedWorker, Window)]
 interface Sensor : EventTarget {
   readonly attribute boolean activated;
   readonly attribute boolean hasReading;
@@ -20,7 +20,7 @@ dictionary SensorOptions {
 };
 
 [Constructor(DOMString type, SensorErrorEventInit errorEventInitDict),
- SecureContext, Exposed=Window]
+ SecureContext, Exposed=(DedicatedWorker, Window)]
 interface SensorErrorEvent : Event {
   readonly attribute DOMException error;
 };
@@ -58,63 +58,3 @@ enum MockSensorType {
 
 dictionary MockSensorReadingValues {
 };
-
-dictionary AmbientLightReadingValues {
-  required double? illuminance;
-};
-
-dictionary AccelerometerReadingValues {
-  required double? x;
-  required double? y;
-  required double? z;
-};
-
-dictionary LinearAccelerationReadingValues : AccelerometerReadingValues {
-};
-
-dictionary GravityReadingValues : AccelerometerReadingValues {
-};
-
-dictionary GyroscopeReadingValues {
-  required double? x;
-  required double? y;
-  required double? z;
-};
-
-dictionary MagnetometerReadingValues {
-  required double? x;
-  required double? y;
-  required double? z;
-};
-
-dictionary UncalibratedMagnetometerReadingValues {
-  required double? x;
-  required double? y;
-  required double? z;
-  required double? xBias;
-  required double? yBias;
-  required double? zBias;
-};
-
-dictionary AbsoluteOrientationReadingValues {
-  required FrozenArray<double>? quaternion;
-};
-
-dictionary RelativeOrientationReadingValues : AbsoluteOrientationReadingValues {
-};
-
-dictionary GeolocationReadingValues {
-  required double? latitude;
-  required double? longitude;
-  required double? altitude;
-  required double? accuracy;
-  required double? altitudeAccuracy;
-  required double? heading;
-  required double? speed;
-};
-
-dictionary ProximityReadingValues {
-  required double? distance;
-  required double? max;
-  required boolean? near;
-};
diff --git a/tests/wpt/web-platform-tests/interfaces/geolocation-sensor.idl b/tests/wpt/web-platform-tests/interfaces/geolocation-sensor.idl
index 41c310acefe..074d7bb9731 100644
--- a/tests/wpt/web-platform-tests/interfaces/geolocation-sensor.idl
+++ b/tests/wpt/web-platform-tests/interfaces/geolocation-sensor.idl
@@ -3,7 +3,9 @@
 // (https://github.com/tidoust/reffy-reports)
 // Source: Geolocation Sensor (https://wicg.github.io/geolocation-sensor/)
 
-[Constructor(optional GeolocationSensorOptions options), SecureContext, Exposed=Window]
+[Constructor(optional GeolocationSensorOptions options),
+ SecureContext,
+ Exposed=(DedicatedWorker, Window)]
 interface GeolocationSensor : Sensor {
   static Promise<GeolocationSensorReading> read(optional ReadOptions readOptions);
   readonly attribute unrestricted double? latitude;
diff --git a/tests/wpt/web-platform-tests/interfaces/keyboard-lock.idl b/tests/wpt/web-platform-tests/interfaces/keyboard-lock.idl
index 90812ae8914..5990976c1c8 100644
--- a/tests/wpt/web-platform-tests/interfaces/keyboard-lock.idl
+++ b/tests/wpt/web-platform-tests/interfaces/keyboard-lock.idl
@@ -1,7 +1,7 @@
 // GENERATED CONTENT - DO NOT EDIT
 // Content was automatically extracted by Reffy into reffy-reports
 // (https://github.com/tidoust/reffy-reports)
-// Source: Keyboard Lock (https://w3c.github.io/keyboard-lock/)
+// Source: Keyboard Lock (https://wicg.github.io/keyboard-lock/)
 
 partial interface Navigator {
   [SecureContext, SameObject] readonly attribute Keyboard keyboard;
diff --git a/tests/wpt/web-platform-tests/interfaces/mediacapture-depth.idl b/tests/wpt/web-platform-tests/interfaces/mediacapture-depth.idl
index 63e839cba93..907940aed7d 100644
--- a/tests/wpt/web-platform-tests/interfaces/mediacapture-depth.idl
+++ b/tests/wpt/web-platform-tests/interfaces/mediacapture-depth.idl
@@ -4,76 +4,23 @@
 // Source: Media Capture Depth Stream Extensions (https://w3c.github.io/mediacapture-depth/)
 
 partial dictionary MediaTrackSupportedConstraints {
-    // Apply to both depth stream track and color stream track:
+    // Applies to both depth stream track and color stream track:
     boolean videoKind = true;
-    boolean focalLengthX = false;
-    boolean focalLengthY = false;
-    boolean principalPointX = false;
-    boolean principalPointY = false;
-    boolean deprojectionDistortionCoefficients = false;
-    boolean projectionDistortionCoefficients = false;
-    // Apply to depth stream track:
-    boolean depthNear = false;
-    boolean depthFar = false;
-    boolean depthToVideoTransform = false;
 };
 
 partial dictionary MediaTrackCapabilities {
-    // Apply to both depth stream track and color stream track:
+    // Applies to both depth stream track and color stream track:
     DOMString videoKind;
-    (double or DoubleRange) focalLengthX;
-    (double or DoubleRange) focalLengthY;
-    (double or DoubleRange) principalPointX;
-    (double or DoubleRange) principalPointY;
-    boolean deprojectionDistortionCoefficients;
-    boolean projectionDistortionCoefficients;
-    // Apply to depth stream track:
-    (double or DoubleRange) depthNear;
-    (double or DoubleRange) depthFar;
-    boolean depthToVideoTransform;
 };
 
 partial dictionary MediaTrackConstraintSet {
-    // Apply to both depth stream track and color stream track:
+    // Applies to both depth stream track and color stream track:
     ConstrainDOMString videoKind;
-    ConstrainDouble focalLengthX;
-    ConstrainDouble focalLengthY;
-    ConstrainDouble principalPointX;
-    ConstrainDouble principalPointY;
-    ConstrainBoolean deprojectionDistortionCoefficients;
-    ConstrainBoolean projectionDistortionCoefficients;
-    // Apply to depth stream track:
-    ConstrainDouble depthNear;
-    ConstrainDouble depthFar;
-    ConstrainBoolean depthToVideoTransform;
 };
 
 partial dictionary MediaTrackSettings {
-    // Apply to both depth stream track and color stream track:
+    // Applies to both depth stream track and color stream track:
     DOMString videoKind;
-    double focalLengthX;
-    double focalLengthY;
-    double principalPointX;
-    double principalPointY;
-    DistortionCoefficients deprojectionDistortionCoefficients;
-    DistortionCoefficients projectionDistortionCoefficients;
-    // Apply to depth stream track:
-    double depthNear;
-    double depthFar;
-    Transformation depthToVideoTransform;
-};
-
-dictionary DistortionCoefficients {
-    double k1;
-    double k2;
-    double p1;
-    double p2;
-    double k3;
-};
-
-dictionary Transformation {
-  Float32Array transformationMatrix;
-  DOMString videoDeviceId;
 };
 
 enum VideoKindEnum {
diff --git a/tests/wpt/web-platform-tests/interfaces/mediacapture-streams.idl b/tests/wpt/web-platform-tests/interfaces/mediacapture-streams.idl
index a66e473493e..0feea37802d 100644
--- a/tests/wpt/web-platform-tests/interfaces/mediacapture-streams.idl
+++ b/tests/wpt/web-platform-tests/interfaces/mediacapture-streams.idl
@@ -164,14 +164,13 @@ partial interface Navigator {
     readonly        attribute MediaDevices mediaDevices;
 };
 
-[Exposed=Window,
-SecureContext]
+[Exposed=Window, SecureContext]
 interface MediaDevices : EventTarget {
                     attribute EventHandler ondevicechange;
     Promise<sequence<MediaDeviceInfo>> enumerateDevices();
 };
 
-[Exposed=Window]
+[Exposed=Window, SecureContext]
 interface MediaDeviceInfo {
     readonly        attribute DOMString deviceId;
     readonly        attribute MediaDeviceKind kind;
@@ -211,15 +210,6 @@ callback NavigatorUserMediaErrorCallback = void (MediaStreamError error);
 
 typedef object MediaStreamError;
 
-[NoInterfaceObject]
-interface ConstrainablePattern {
-    Capabilities getCapabilities();
-    Constraints getConstraints();
-    Settings getSettings();
-    Promise<void> applyConstraints(optional Constraints constraints);
-                    attribute EventHandler onoverconstrained;
-};
-
 dictionary DoubleRange {
              double max;
              double min;
diff --git a/tests/wpt/web-platform-tests/interfaces/pointerevents.idl b/tests/wpt/web-platform-tests/interfaces/pointerevents.idl
index da822bba0e5..fd368bf5a0a 100644
--- a/tests/wpt/web-platform-tests/interfaces/pointerevents.idl
+++ b/tests/wpt/web-platform-tests/interfaces/pointerevents.idl
@@ -36,7 +36,7 @@ partial interface Element {
   boolean hasPointerCapture(long pointerId);
 };
 
-partial interface GlobalEventHandlers {
+partial interface mixin GlobalEventHandlers {
     attribute EventHandler ongotpointercapture;
     attribute EventHandler onlostpointercapture;
     attribute EventHandler onpointerdown;
diff --git a/tests/wpt/web-platform-tests/interfaces/screen-orientation.idl b/tests/wpt/web-platform-tests/interfaces/screen-orientation.idl
index 2304cc286cc..b5481216729 100644
--- a/tests/wpt/web-platform-tests/interfaces/screen-orientation.idl
+++ b/tests/wpt/web-platform-tests/interfaces/screen-orientation.idl
@@ -16,13 +16,6 @@ interface ScreenOrientation : EventTarget {
   attribute EventHandler onchange;
 };
 
-enum OrientationType {
-  "portrait-primary",
-  "portrait-secondary",
-  "landscape-primary",
-  "landscape-secondary"
-};
-
 enum OrientationLockType {
   "any",
   "natural",
@@ -33,3 +26,10 @@ enum OrientationLockType {
   "landscape-primary",
   "landscape-secondary"
 };
+
+enum OrientationType {
+  "portrait-primary",
+  "portrait-secondary",
+  "landscape-primary",
+  "landscape-secondary"
+};
diff --git a/tests/wpt/web-platform-tests/interfaces/service-workers.idl b/tests/wpt/web-platform-tests/interfaces/service-workers.idl
index fb2e033a7aa..99f55ab6add 100644
--- a/tests/wpt/web-platform-tests/interfaces/service-workers.idl
+++ b/tests/wpt/web-platform-tests/interfaces/service-workers.idl
@@ -1,13 +1,14 @@
 // GENERATED CONTENT - DO NOT EDIT
 // Content was automatically extracted by Reffy into reffy-reports
 // (https://github.com/tidoust/reffy-reports)
-// Source: Service Workers 1 (https://w3c.github.io/ServiceWorker/v1/)
+// Source: Service Workers Nightly (https://w3c.github.io/ServiceWorker/)
 
 [SecureContext, Exposed=(Window,Worker)]
 interface ServiceWorker : EventTarget {
   readonly attribute USVString scriptURL;
   readonly attribute ServiceWorkerState state;
-  void postMessage(any message, optional sequence<object> transfer = []);
+  void postMessage(any message, sequence<object> transfer);
+  void postMessage(any message, optional PostMessageOptions options);
 
   // event
   attribute EventHandler onstatechange;
@@ -27,6 +28,7 @@ interface ServiceWorkerRegistration : EventTarget {
   readonly attribute ServiceWorker? installing;
   readonly attribute ServiceWorker? waiting;
   readonly attribute ServiceWorker? active;
+  [SameObject] readonly attribute NavigationPreloadManager navigationPreload;
 
   readonly attribute USVString scope;
   readonly attribute ServiceWorkerUpdateViaCache updateViaCache;
@@ -76,6 +78,19 @@ dictionary RegistrationOptions {
   ServiceWorkerUpdateViaCache updateViaCache = "imports";
 };
 
+[SecureContext, Exposed=(Window,Worker)]
+interface NavigationPreloadManager {
+  Promise<void> enable();
+  Promise<void> disable();
+  Promise<void> setHeaderValue(ByteString value);
+  Promise<NavigationPreloadState> getState();
+};
+
+dictionary NavigationPreloadState {
+  boolean enabled = false;
+  ByteString headerValue;
+};
+
 [Global=(Worker,ServiceWorker), Exposed=ServiceWorker]
 interface ServiceWorkerGlobalScope : WorkerGlobalScope {
   [SameObject] readonly attribute Clients clients;
@@ -98,7 +113,8 @@ interface Client {
   readonly attribute FrameType frameType;
   readonly attribute DOMString id;
   readonly attribute ClientType type;
-  void postMessage(any message, optional sequence<object> transfer = []);
+  void postMessage(any message, sequence<object> transfer);
+  void postMessage(any message, optional PostMessageOptions options);
 };
 
 [Exposed=ServiceWorker]
@@ -150,14 +166,20 @@ dictionary ExtendableEventInit : EventInit {
 [Constructor(DOMString type, FetchEventInit eventInitDict), Exposed=ServiceWorker]
 interface FetchEvent : ExtendableEvent {
   [SameObject] readonly attribute Request request;
+  readonly attribute Promise<any> preloadResponse;
   readonly attribute DOMString clientId;
+  readonly attribute DOMString resultingClientId;
+  readonly attribute DOMString replacesClientId;
 
   void respondWith(Promise<Response> r);
 };
 
 dictionary FetchEventInit : ExtendableEventInit {
   required Request request;
+  Promise<any> preloadResponse;
   DOMString clientId = "";
+  DOMString resultingClientId = "";
+  DOMString replacesClientId = "";
 };
 
 [Constructor(DOMString type, optional ExtendableMessageEventInit eventInitDict), Exposed=ServiceWorker]
@@ -177,7 +199,7 @@ dictionary ExtendableMessageEventInit : ExtendableEventInit {
   sequence<MessagePort> ports = [];
 };
 
-partial interface WindowOrWorkerGlobalScope {
+partial interface mixin WindowOrWorkerGlobalScope {
   [SecureContext, SameObject] readonly attribute CacheStorage caches;
 };
 
diff --git a/tests/wpt/web-platform-tests/interfaces/speech-api.idl b/tests/wpt/web-platform-tests/interfaces/speech-api.idl
index f94637a8d21..ba86d5065b7 100644
--- a/tests/wpt/web-platform-tests/interfaces/speech-api.idl
+++ b/tests/wpt/web-platform-tests/interfaces/speech-api.idl
@@ -155,6 +155,7 @@ interface SpeechSynthesisUtterance : EventTarget {
 interface SpeechSynthesisEvent : Event {
     readonly attribute SpeechSynthesisUtterance utterance;
     readonly attribute unsigned long charIndex;
+    readonly attribute unsigned long charLength;
     readonly attribute float elapsedTime;
     readonly attribute DOMString name;
 };
@@ -162,6 +163,7 @@ interface SpeechSynthesisEvent : Event {
 dictionary SpeechSynthesisEventInit : EventInit {
     required SpeechSynthesisUtterance utterance;
     unsigned long charIndex = 0;
+    unsigned long charLength = 0;
     float elapsedTime = 0;
     DOMString name = "";
 };
diff --git a/tests/wpt/web-platform-tests/interfaces/touch-events.idl b/tests/wpt/web-platform-tests/interfaces/touch-events.idl
index 5e341bd7b17..17be1b46b37 100644
--- a/tests/wpt/web-platform-tests/interfaces/touch-events.idl
+++ b/tests/wpt/web-platform-tests/interfaces/touch-events.idl
@@ -67,7 +67,7 @@ interface TouchEvent : UIEvent {
     readonly        attribute boolean shiftKey;
 };
 
-partial interface GlobalEventHandlers {
+partial interface mixin GlobalEventHandlers {
                     attribute EventHandler ontouchstart;
                     attribute EventHandler ontouchend;
                     attribute EventHandler ontouchmove;
diff --git a/tests/wpt/web-platform-tests/interfaces/wake-lock.idl b/tests/wpt/web-platform-tests/interfaces/wake-lock.idl
index ac8b70c157a..10e714828d9 100644
--- a/tests/wpt/web-platform-tests/interfaces/wake-lock.idl
+++ b/tests/wpt/web-platform-tests/interfaces/wake-lock.idl
@@ -5,17 +5,14 @@
 
 enum WakeLockType { "screen", "system" };
 
-partial interface Navigator {
-  [SecureContext] Promise<WakeLock> getWakeLock(WakeLockType type);
-};
-
-[SecureContext, Exposed=Window] interface WakeLock : EventTarget {
+[Constructor(WakeLockType type), SecureContext, Exposed=(DedicatedWorker,Window)]
+interface WakeLock : EventTarget {
   readonly attribute WakeLockType type;
   readonly attribute boolean active;
   attribute EventHandler onactivechange;
-  WakeLockRequest createRequest();
+  Promise<void> request(optional WakeLockRequestOptions options);
 };
 
-[SecureContext, Exposed=Window] interface WakeLockRequest {
-  void cancel();
+dictionary WakeLockRequestOptions {
+  AbortSignal? signal;
 };
diff --git a/tests/wpt/web-platform-tests/interfaces/webrtc.idl b/tests/wpt/web-platform-tests/interfaces/webrtc.idl
index d60139ad946..413a96ac560 100644
--- a/tests/wpt/web-platform-tests/interfaces/webrtc.idl
+++ b/tests/wpt/web-platform-tests/interfaces/webrtc.idl
@@ -105,7 +105,7 @@ interface RTCPeerConnection : EventTarget {
     readonly        attribute RTCSessionDescription? remoteDescription;
     readonly        attribute RTCSessionDescription? currentRemoteDescription;
     readonly        attribute RTCSessionDescription? pendingRemoteDescription;
-    Promise<void> addIceCandidate(RTCIceCandidateInit candidate);
+    Promise<void> addIceCandidate(optional RTCIceCandidateInit candidate);
     readonly        attribute RTCSignalingState signalingState;
     readonly        attribute RTCIceGatheringState iceGatheringState;
     readonly        attribute RTCIceConnectionState iceConnectionState;
@@ -609,6 +609,26 @@ dictionary RTCStatsEventInit : EventInit {
             required RTCStatsReport report;
           };
 
+[
+    Exposed=Window,
+    Constructor(RTCErrorInit init, optional DOMString message = "")] interface RTCError {
+    readonly attribute RTCErrorDetailType errorDetail;
+    readonly attribute long? sdpLineNumber;
+    readonly attribute long? httpRequestStatusCode;
+    readonly attribute long? sctpCauseCode;
+    readonly attribute unsigned long? receivedAlert;
+    readonly attribute unsigned long? sentAlert;
+};
+
+dictionary RTCErrorInit {
+    required RTCErrorDetailType errorDetail;
+    long sdpLineNumber;
+    long httpRequestStatusCode;
+    long sctpCauseCode;
+    unsigned long receivedAlert;
+    unsigned long sentAlert;
+};
+
 enum RTCErrorDetailType {
               "data-channel-failure",
               "dtls-failure",
@@ -627,12 +647,12 @@ enum RTCErrorDetailType {
               "hardware-encoder-error"
           };
 
-[Exposed=Window,
- Constructor(DOMString type, optional RTCErrorEventInit eventInitDict)]
-interface RTCErrorEvent : Event {
-    readonly        attribute RTCError? error;
+[
+    Exposed=Window,
+    Constructor(DOMString type, RTCErrorEventInit eventInitDict)] interface RTCErrorEvent : Event {
+    [SameObject] readonly attribute RTCError error;
 };
 
 dictionary RTCErrorEventInit : EventInit {
-             RTCError? error = null;
+     required RTCError error;
 };
diff --git a/tests/wpt/web-platform-tests/lint.whitelist b/tests/wpt/web-platform-tests/lint.whitelist
index 12b32126b66..fd4d4049d6d 100644
--- a/tests/wpt/web-platform-tests/lint.whitelist
+++ b/tests/wpt/web-platform-tests/lint.whitelist
@@ -187,8 +187,9 @@ SET TIMEOUT: paint-timing/resources/subframe-painting.html
 SET TIMEOUT: payment-request/allowpaymentrequest/setting-allowpaymentrequest-timing.https.sub.html
 SET TIMEOUT: preload/single-download-preload.html
 SET TIMEOUT: resize-observer/resources/iframe.html
-SET TIMEOUT: resource-timing/resources/iframe-TAO*
 SET TIMEOUT: resource-timing/resources/nested-contexts.js
+SET TIMEOUT: resource-timing/TAO-null-opaque-origin.sub.html
+SET TIMEOUT: resource-timing/TAO-case-insensitive-null-opaque-origin.sub.html
 SET TIMEOUT: screen-orientation/onchange-event.html
 SET TIMEOUT: secure-contexts/basic-popup-and-iframe-tests.https.js
 SET TIMEOUT: service-workers/cache-storage/script-tests/cache-abort.js
diff --git a/tests/wpt/web-platform-tests/mathml/presentation-markup/fractions/frac-linethickness-004-ref.html b/tests/wpt/web-platform-tests/mathml/presentation-markup/fractions/frac-linethickness-004-ref.html
new file mode 100644
index 00000000000..8014f0a8952
--- /dev/null
+++ b/tests/wpt/web-platform-tests/mathml/presentation-markup/fractions/frac-linethickness-004-ref.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="utf-8">
+    <title>fractions linethickness</title>
+    <style type="text/css">
+      @font-face {
+        font-family: TestFont;
+        src: url("/fonts/math/fraction-rulethickness10000.woff");
+      }
+      math {
+        /* FractionRuleThickness = 10000 * 1 / 1000 = 10px; */
+        font-family: "TestFont";
+        font-size: 1px;
+      }
+    </style>
+  </head>
+  <body>
+    <p>This test passes if you see no fraction bar.</p>
+    <math>
+      <mfrac linethickness="0px">
+        <mspace width="20px" height="10px" style="background: blue"></mspace>
+        <mspace width="20px" height="10px" style="background: cyan"></mspace>
+      </mfrac>
+    </math>
+  </body>
+</html>
diff --git a/tests/wpt/web-platform-tests/mathml/presentation-markup/fractions/frac-linethickness-004.html b/tests/wpt/web-platform-tests/mathml/presentation-markup/fractions/frac-linethickness-004.html
new file mode 100644
index 00000000000..ff96a3d753e
--- /dev/null
+++ b/tests/wpt/web-platform-tests/mathml/presentation-markup/fractions/frac-linethickness-004.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="utf-8">
+    <title>fractions linethickness</title>
+    <link rel="help" href="https://mathml-refresh.github.io/mathml-core/#mfrac">
+    <meta name="assert" content="Verifies that unitless value of zero causes no fraction bar to be painted">
+    <link rel="match" href="frac-linethickness-004-ref.html">
+    <style type="text/css">
+      @font-face {
+        font-family: TestFont;
+        src: url("/fonts/math/fraction-rulethickness10000.woff");
+      }
+      math {
+        /* FractionRuleThickness = 10000 * 1 / 1000 = 10px; */
+        font-family: "TestFont";
+        font-size: 1px;
+      }
+    </style>
+  </head>
+  <body>
+    <p>This test passes if you see no fraction bar.</p>
+    <math>
+      <mfrac linethickness="0">
+        <mspace width="20px" height="10px" style="background: blue"></mspace>
+        <mspace width="20px" height="10px" style="background: cyan"></mspace>
+      </mfrac>
+    </math>
+  </body>
+</html>
diff --git a/tests/wpt/web-platform-tests/payment-request/PaymentRequestUpdateEvent/updateWith-method-abort-update-manual.https.html b/tests/wpt/web-platform-tests/payment-request/PaymentRequestUpdateEvent/updateWith-method-abort-update-manual.https.html
index cf0bb289d73..abbf39ba395 100644
--- a/tests/wpt/web-platform-tests/payment-request/PaymentRequestUpdateEvent/updateWith-method-abort-update-manual.https.html
+++ b/tests/wpt/web-platform-tests/payment-request/PaymentRequestUpdateEvent/updateWith-method-abort-update-manual.https.html
@@ -141,7 +141,7 @@ recursiveData.foo = recursiveData;
 Object.freeze(recursiveData);
 
 const modifierWithRecursiveData = Object.freeze({
-  supportedMethods: validMethodBasicCard,
+  supportedMethods: "basic-card",
   total: validTotal,
   data: recursiveData,
 });
@@ -186,7 +186,7 @@ function testBadUpdate(button, badDetails, expectedError, errorCode) {
 <ol>
   <li>
     <button onclick="
-      const rejectedPromise = Promise.reject(new SyntaxError('test')).catch(err => err);
+      const rejectedPromise = Promise.reject(new SyntaxError('test'));
       testBadUpdate(this, rejectedPromise, 'AbortError');
     ">
       Rejection of detailsPromise must abort the update with an "AbortError" DOMException.
diff --git a/tests/wpt/web-platform-tests/pointerevents/pointerevent_mouse_capture_change_hover.html b/tests/wpt/web-platform-tests/pointerevents/pointerevent_mouse_capture_change_hover.html
new file mode 100644
index 00000000000..10b19f8474a
--- /dev/null
+++ b/tests/wpt/web-platform-tests/pointerevents/pointerevent_mouse_capture_change_hover.html
@@ -0,0 +1,167 @@
+<!DOCTYPE HTML>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/resources/testdriver.js"></script>
+<script src="/resources/testdriver-vendor.js"></script>
+<script src="/resources/testdriver-actions.js"></script>
+<style>
+body {
+  user-select: none;
+}
+#green:hover {
+  background-color: red;
+}
+#blue:hover {
+  background-color: red;
+}
+#green {
+  background-color: green;
+}
+#blue {
+  background-color: blue;
+}
+div.box {
+  margin: 5px;
+  padding: 20px;
+  width: 50px;
+  height: 50px;
+}
+</style>
+<body onload="run()">
+  <div id="green" class="box"></div>
+  <div id="blue" class="box"></div>
+</body>
+<script>
+var receivedEventList = [];
+var setcapture = "";
+
+let testEventList = ['pointerup', 'pointerdown', 'pointermove', 'gotpointercapture', 'lostpointercapture', "pointerover", "pointerout", "pointerleave", "pointerenter"];
+testEventList.forEach(function(eventName) {
+  green.addEventListener(eventName, logEvent);
+  blue.addEventListener(eventName, logEvent);
+});
+
+function logEvent(event) {
+  receivedEventList.push(event.target.id + " received " + event.type)
+}
+
+function setCaptureGreen(event) {
+  green.setPointerCapture(event.pointerId);
+}
+
+function setCaptureBlue(event) {
+  blue.setPointerCapture(event.pointerId);
+}
+
+function releaseCapture(event) {
+  if (event.target.hasPointerCapture(event.pointerId)) {
+    event.target.releasePointerCapture(event.pointerId);
+  }
+}
+
+function run() {
+  promise_test (async() => {
+    // Move to (0, 0) to reset hovering.
+    await new test_driver.Actions().pointerMove(0, 0).send();
+    receivedEventList = [];
+
+    // pointerdown at green -> set capture to green -> green receive the following moves.
+    document.addEventListener("pointerdown", setCaptureGreen);
+
+    await new test_driver.Actions()
+                         .pointerMove(25, 25, {origin: green})
+                         .pointerDown()
+                         .pointerMove(30, 30, {origin: green})
+                         .pointerMove(25, 25, {origin: blue})
+                         .send();
+
+    expectedEventList = ["green received pointerover",
+                         "green received pointerenter",
+                         "green received pointermove",
+                         "green received pointerdown",
+                         "green received gotpointercapture",
+                         "green received pointermove",
+                         "green received pointermove"];
+
+    assert_array_equals(receivedEventList, expectedEventList, "Received events: " + receivedEventList);
+    assert_equals(getComputedStyle(green).backgroundColor, "rgb(255, 0, 0)", "green should be red (hover).");
+    assert_equals(getComputedStyle(blue).backgroundColor, "rgb(0, 0, 255)", "blue should be blue.");
+    document.removeEventListener("pointerdown", setCaptureGreen);
+    // Release mouse button.
+    await new test_driver.Actions().pointerUp().send();
+  }, "Mouse down and capture to green.");
+
+  promise_test (async() => {
+    // Move to (0, 0) to reset hovering.
+    await new test_driver.Actions().pointerMove(0, 0).send();
+    receivedEventList = [];
+
+    // pointerdown at green -> set capture to blue -> blue receive the following moves.
+    document.addEventListener("pointerdown", setCaptureBlue);
+
+    await new test_driver.Actions()
+                         .pointerMove(25, 25, {origin: green})
+                         .pointerDown()
+                         .pointerMove(30, 30, {origin: green})
+                         .pointerMove(30, 30, {origin: green})
+                         .send();
+
+    expectedEventList = ["green received pointerover",
+                         "green received pointerenter",
+                         "green received pointermove",
+                         "green received pointerdown",
+                         "green received pointerout",
+                         "green received pointerleave",
+                         "blue received pointerover",
+                         "blue received pointerenter",
+                         "blue received gotpointercapture",
+                         "blue received pointermove",
+                         "blue received pointermove"];
+
+    assert_array_equals(receivedEventList, expectedEventList, "Received events: " + receivedEventList);
+    assert_equals(getComputedStyle(green).backgroundColor, "rgb(0, 128, 0)", "green should be green.");
+    assert_equals(getComputedStyle(blue).backgroundColor, "rgb(255, 0, 0)", "blue should be red (hover).");
+    document.removeEventListener("pointerdown", setCaptureBlue);
+    // Release mouse button.
+    await new test_driver.Actions().pointerUp().send();
+  }, "Mouse down at green and capture to blue.");
+
+  promise_test (async() => {
+    // Move to (0, 0) to reset hovering.
+    await new test_driver.Actions().pointerMove(0, 0).send();
+    receivedEventList = [];
+
+    // pointerdown at green -> set capture to green -> green receive first move -> release capture -> blue receive the next move
+    green.addEventListener("pointerdown", setCaptureGreen);
+    green.addEventListener("pointermove", releaseCapture);
+
+    await new test_driver.Actions()
+                         .pointerMove(25, 25, {origin: green})
+                         .pointerDown()
+                         .pointerMove(30, 30, {origin: blue})
+                         .pointerMove(25, 25, {origin: blue})
+                         .send();
+
+    expectedEventList = ["green received pointerover",
+                         "green received pointerenter",
+                         "green received pointermove",
+                         "green received pointerdown",
+                         "green received gotpointercapture",
+                         "green received pointermove",
+                         "green received lostpointercapture",
+                         "green received pointerout",
+                         "green received pointerleave",
+                         "blue received pointerover",
+                         "blue received pointerenter",
+                         "blue received pointermove"]
+
+    assert_array_equals(receivedEventList, expectedEventList, "Received events: " + receivedEventList);
+    assert_equals(getComputedStyle(green).backgroundColor, "rgb(0, 128, 0)", "green should be green.");
+    assert_equals(getComputedStyle(blue).backgroundColor, "rgb(255, 0, 0)", "blue should be red (hover).");
+    green.removeEventListener("pointerdown", setCaptureBlue);
+    green.removeEventListener("pointermove", releaseCapture);
+    // Release mouse button.
+    await new test_driver.Actions().pointerUp().send();
+  }, "Mouse down and capture to green, move to blue and release capture");
+}
+</script>
diff --git a/tests/wpt/web-platform-tests/pointerevents/pointerevent_mouse_pointercapture_in_frame.html b/tests/wpt/web-platform-tests/pointerevents/pointerevent_mouse_pointercapture_in_frame.html
new file mode 100644
index 00000000000..83b4c1becc4
--- /dev/null
+++ b/tests/wpt/web-platform-tests/pointerevents/pointerevent_mouse_pointercapture_in_frame.html
@@ -0,0 +1,143 @@
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/resources/testdriver.js"></script>
+<script src="/resources/testdriver-vendor.js"></script>
+<script src="/resources/testdriver-actions.js"></script>
+<style>
+iframe {
+  width: 300px;
+  height: 300px;
+  top: 100px;
+  left: 100px;
+  border: 0;
+  position: absolute;
+  background: green;
+}
+#outerFrame {
+  width: 500px;
+  height: 500px;
+  background: blue;
+}
+</style>
+<body id="outerFrame body" onload="run()">
+<div id='outerFrame'>
+<iframe id='innerFrameElement' src="resources/pointerevent_mouse_pointercapture-iframe.html"></iframe>
+</div>
+</body>
+<script>
+var receivedEventList = [];
+function handleEvent(event) {
+  receivedEventList.push(event.target.id + ' received ' + event.type);
+
+  if (event.type == 'pointerdown') {
+    if (document.setPointerCaptureOnPointerDown) {
+      event.target.setPointerCapture(event.pointerId);
+    }
+  }
+
+  if (event.type == "pointermove") {
+    if (document.releasePointerCaptureOnFirstMove && event.target.hasPointerCapture(event.pointerId))
+        event.target.releasePointerCapture(event.pointerId);
+  }
+};
+
+document.testEventList = ['pointerup', 'pointerdown', 'pointermove', 'gotpointercapture', 'lostpointercapture'];
+document.testEventList.forEach(function(eventName) {
+  document.getElementById('outerFrame').addEventListener(eventName, handleEvent);
+});
+
+document.setPointerCaptureOnPointerDown = false;
+document.releasePointerCaptureOnFirstMove = false;
+
+function run() {
+    promise_test (async() => {
+        document.setPointerCaptureOnPointerDown = true;
+        receivedEventList = [];
+        expectedEventList = ["innerFrame received pointermove",
+                             "innerFrame received pointerdown",
+                             "innerFrame received gotpointercapture",
+                             "innerFrame received pointermove",
+                             "innerFrame received pointermove",
+                             "innerFrame received pointerup",
+                             "innerFrame received lostpointercapture"];
+        await new test_driver.Actions()
+                             .pointerMove(200, 200)
+                             .pointerDown()
+                             .pointerMove(150, 150)
+                             .pointerMove(50, 50)
+                             .pointerUp()
+                             .send();
+        assert_array_equals(receivedEventList, expectedEventList, "Received events: " + receivedEventList);
+        document.setPointerCaptureOnPointerDown = false;
+    }, "Test pointer capture event route across the same-origin frame: Mouse down at inner frame and set pointer capture.");
+
+
+    promise_test (async() => {
+        document.setPointerCaptureOnPointerDown = true;
+        receivedEventList = [];
+        expectedEventList = ["outerFrame received pointermove",
+                             "outerFrame received pointerdown",
+                             "outerFrame received gotpointercapture",
+                             "outerFrame received pointermove",
+                             "outerFrame received pointerup",
+                             "outerFrame received lostpointercapture"];
+        await new test_driver.Actions()
+                             .pointerMove(25, 25)
+                             .pointerDown()
+                             .pointerMove(200, 200)
+                             .pointerUp()
+                             .send();
+        assert_array_equals(receivedEventList, expectedEventList, "Received events: " + receivedEventList);
+        document.setPointerCaptureOnPointerDown = false;
+    }, "Test pointer capture event route across the same-origin frame: Mouse down at outer frame body and set pointer capture.");
+
+
+    promise_test (async() => {
+        document.setPointerCaptureOnPointerDown = true;
+        document.releasePointerCaptureOnFirstMove = true;
+        receivedEventList = [];
+        expectedEventList = ["innerFrame received pointermove",
+                             "innerFrame received pointerdown",
+                             "innerFrame received gotpointercapture",
+                             "innerFrame received pointermove",
+                             "innerFrame received lostpointercapture",
+                             "innerFrameDocument received pointermove",
+                             "innerFrameDocument received pointerup",];
+        await new test_driver.Actions()
+                             .pointerMove(200, 200)
+                             .pointerDown()
+                             .pointerMove(150, 150)
+                             .pointerMove(50, 50)
+                             .pointerUp()
+                             .send();
+        assert_array_equals(receivedEventList, expectedEventList, "Received events: " + receivedEventList);
+        document.releasePointerCaptureOnFirstMove = false;
+        document.setPointerCaptureOnPointerDown = false;
+    }, "Test pointer capture event route across the same-origin frame: Mouse down with set capture at inner frame, then release on next mouse move.");
+
+
+    promise_test (async() => {
+        document.setPointerCaptureOnPointerDown = true;
+        document.releasePointerCaptureOnFirstMove = true;
+        receivedEventList = [];
+        expectedEventList = ["outerFrame received pointermove",
+                             "outerFrame received pointerdown",
+                             "outerFrame received gotpointercapture",
+                             "outerFrame received pointermove",
+                             "outerFrame received lostpointercapture",
+                             "innerFrame received pointermove",
+                             "innerFrame received pointerup"];
+        await new test_driver.Actions()
+                             .pointerMove(50, 50)
+                             .pointerDown()
+                             .pointerMove(200, 200)
+                             .pointerMove(250, 250)
+                             .pointerUp()
+                             .send();
+        assert_array_equals(receivedEventList, expectedEventList, "Received events: " + receivedEventList);
+        document.releasePointerCaptureOnFirstMove = false;
+        document.setPointerCaptureOnPointerDown = false;
+    }, "Test pointercapture event route across the same-origin frame: Mouse down with set capture at outer frame, then release on next mouse move.");
+}
+</script>
+
diff --git a/tests/wpt/web-platform-tests/pointerevents/pointerevent_mouse_pointercapture_inactivate_pointer.html b/tests/wpt/web-platform-tests/pointerevents/pointerevent_mouse_pointercapture_inactivate_pointer.html
new file mode 100644
index 00000000000..524d19eeceb
--- /dev/null
+++ b/tests/wpt/web-platform-tests/pointerevents/pointerevent_mouse_pointercapture_inactivate_pointer.html
@@ -0,0 +1,55 @@
+<!doctype html>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/resources/testdriver.js"></script>
+<script src="/resources/testdriver-vendor.js"></script>
+<script src="/resources/testdriver-actions.js"></script>
+<style>
+    iframe {
+      width: 300px;
+      height: 300px;
+      top: 100px;
+      left: 50px;
+      border: 0;
+      position: absolute;
+      background: green;
+    }
+    #outerFrame {
+      width: 500px;
+      height: 500px;
+      background: blue;
+    }
+</style>
+<body onload="run()">
+    <div id='outerFrame'>
+        <iframe id='innerFrameElement' src="resources/pointerevent_mouse_pointercapture_inactivate_pointer-iframe.html"></iframe>
+    </div>
+</body>
+
+<script type="text/javascript">
+    var test_pointerEvent = async_test("setPointerCapture: outer frame capture pointer active in inner frame");
+
+    document.addEventListener("gotpointercapture", function(){
+        test_pointerEvent.step(function() {
+            assert_unreached("It should not be possible to capture mouse pointer when it's activate in inner frame");
+        });
+    })
+
+    function captureMousePointer(event) {
+        outerFrame.setPointerCapture(event.pointerId);
+    }
+
+    function finishTest() {
+        test_pointerEvent.done();
+    }
+
+    function run() {
+        new test_driver.Actions()
+            .pointerMove(200, 200)
+            .pointerDown()
+            .pointerMove(250, 250)
+            .pointerUp()
+            .send();
+    }
+</script>
+</html>
diff --git a/tests/wpt/web-platform-tests/pointerevents/resources/pointerevent_mouse_pointercapture-iframe.html b/tests/wpt/web-platform-tests/pointerevents/resources/pointerevent_mouse_pointercapture-iframe.html
new file mode 100644
index 00000000000..817c6123cf9
--- /dev/null
+++ b/tests/wpt/web-platform-tests/pointerevents/resources/pointerevent_mouse_pointercapture-iframe.html
@@ -0,0 +1,9 @@
+<html id='innerFrameDocument'>
+  <body id='innerFrame' style='height:500px; width: 500px; padding: 0; margin: 0;'>
+    <script>
+      top.document.testEventList.forEach(function(eventName) {
+        document.addEventListener(eventName, top.handleEvent);
+      });
+    </script>
+  </body>
+</html>
\ No newline at end of file
diff --git a/tests/wpt/web-platform-tests/pointerevents/resources/pointerevent_mouse_pointercapture_inactivate_pointer-iframe.html b/tests/wpt/web-platform-tests/pointerevents/resources/pointerevent_mouse_pointercapture_inactivate_pointer-iframe.html
new file mode 100644
index 00000000000..d4b4af1fba1
--- /dev/null
+++ b/tests/wpt/web-platform-tests/pointerevents/resources/pointerevent_mouse_pointercapture_inactivate_pointer-iframe.html
@@ -0,0 +1,10 @@
+<body id='innerFrame' style='height:500px; width: 500px; padding: 0; margin: 0;'>
+  <script>
+      document.addEventListener('pointerdown', function(event) {
+          top.captureMousePointer(event);
+      });
+      document.addEventListener('pointerup', function(event) {
+          top.finishTest();
+      });
+  </script>
+</body>
diff --git a/tests/wpt/web-platform-tests/resource-timing/TAO-case-insensitive-null-opaque-origin.sub.html b/tests/wpt/web-platform-tests/resource-timing/TAO-case-insensitive-null-opaque-origin.sub.html
new file mode 100644
index 00000000000..5b222cdf277
--- /dev/null
+++ b/tests/wpt/web-platform-tests/resource-timing/TAO-case-insensitive-null-opaque-origin.sub.html
@@ -0,0 +1,42 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8" />
+<title>Resource Timing TAO - "Null" and opaque origin</title>
+<link rel="author" title="Google" href="http://www.google.com/" />
+<link rel="help" href="https://www.w3.org/TR/resource-timing-2/#timing-allow-origin"/>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script>
+
+const t = async_test("Test case-insensitive null TAO value with opaque origins");
+window.addEventListener("message", t.step_func_done(e=>{
+    assert_equals(e.data, "PASS");
+}));
+</script>
+</head>
+<body>
+<h1>Description</h1>
+<p>This test validates that for a cross origin resource, the timing allow check algorithm will fail when the value of Timing-Allow-Origin is a case-insensitive match to null and the origin is an opaque origin.</p>
+<div id="log"></div>
+<iframe id="frameContext"></iframe>
+<script>
+let frame_content = "data:text/html;utf8,<body>" +
+                    "<script>" +
+                    "const url = '{{location[scheme]}}://{{host}}:{{ports[http][1]}}/resource-timing/resources/TAOResponse.py?tao=Null';" +
+                    "const observe = (list, observer) => {" +
+                    "  const entry = list.getEntries()[0];" +
+                    "  const sum = entry.redirectStart + entry.redirectEnd + entry.domainLookupStart + entry.domainLookupEnd + entry.connectStart +" +
+                    "              entry.connectEnd + entry.secureConnectionStart + entry.requestStart + entry.responseStart + entry.transferSize +" +
+                    "              entry.encodedBodySize + entry.decodedBodySize;" +
+                    "  const result = sum == 0 ? 'PASS' : 'FAIL';" +
+                    "  window.parent.postMessage(result, '*');" +
+                    "};" +
+                    "let observer = new PerformanceObserver(observe);" +
+                    "observer.observe({ entryTypes: ['resource'] });" +
+                    "fetch(url);" +
+                    "</" + "script></body>";
+document.getElementById("frameContext").src = frame_content;
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/resource-timing/TAO-null-opaque-origin.sub.html b/tests/wpt/web-platform-tests/resource-timing/TAO-null-opaque-origin.sub.html
new file mode 100644
index 00000000000..c78e5900677
--- /dev/null
+++ b/tests/wpt/web-platform-tests/resource-timing/TAO-null-opaque-origin.sub.html
@@ -0,0 +1,42 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8" />
+<title>Resource Timing TAO - "null" and opaque origin</title>
+<link rel="author" title="Google" href="http://www.google.com/" />
+<link rel="help" href="https://www.w3.org/TR/resource-timing-2/#timing-allow-origin"/>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script>
+
+const t = async_test("Test null TAO value with opaque origins");
+window.addEventListener("message", t.step_func_done(e=>{
+    assert_equals(e.data, "PASS");
+}));
+</script>
+</head>
+<body>
+<h1>Description</h1>
+<p>This test validates that for a cross origin resource, the timing allow check algorithm will succeed when the value of Timing-Allow-Origin is null and the origin is an opaque origin.</p>
+<div id="log"></div>
+<iframe id="frameContext"></iframe>
+<script>
+let frame_content = "data:text/html;utf8,<body>" +
+                    "<script>" +
+                    "const url = '{{location[scheme]}}://{{host}}:{{ports[http][1]}}/resource-timing/resources/TAOResponse.py?tao=null';" +
+                    "const observe = (list, observer) => {" +
+                    "  const entry = list.getEntries()[0];" +
+                    "  const sum = entry.redirectStart + entry.redirectEnd + entry.domainLookupStart + entry.domainLookupEnd + entry.connectStart +" +
+                    "              entry.connectEnd + entry.secureConnectionStart + entry.requestStart + entry.responseStart + entry.transferSize +" +
+                    "              entry.encodedBodySize + entry.decodedBodySize;" +
+                    "  const result = sum != 0 ? 'PASS' : 'FAIL';" +
+                    "  window.parent.postMessage(result, '*');" +
+                    "};" +
+                    "let observer = new PerformanceObserver(observe);" +
+                    "observer.observe({ entryTypes: ['resource'] });" +
+                    "fetch(url);" +
+                    "</" + "script></body>";
+document.getElementById("frameContext").src = frame_content;
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/resource-timing/resources/TAOResponse.py b/tests/wpt/web-platform-tests/resource-timing/resources/TAOResponse.py
index d98098ccc83..e84912808da 100644
--- a/tests/wpt/web-platform-tests/resource-timing/resources/TAOResponse.py
+++ b/tests/wpt/web-platform-tests/resource-timing/resources/TAOResponse.py
@@ -11,8 +11,11 @@ def main(request, response):
     # wildcard, pass
         response.headers.set('Timing-Allow-Origin', '*')
     elif tao == 'null':
-    # null, fail
+    # null, fail unless it's an opaque origin
         response.headers.set('Timing-Allow-Origin', 'null')
+    elif tao == 'Null':
+    # case-insentive null, fail
+        response.headers.set('Timing-Allow-Origin', 'Null')
     elif tao == 'origin':
     # case-sensitive match for origin, pass
         response.headers.set('Timing-Allow-Origin', origin)
diff --git a/tests/wpt/web-platform-tests/speech-api/SpeechSynthesisEvent-constructor.html b/tests/wpt/web-platform-tests/speech-api/SpeechSynthesisEvent-constructor.html
index 47a37d25d97..3ad6886b0aa 100644
--- a/tests/wpt/web-platform-tests/speech-api/SpeechSynthesisEvent-constructor.html
+++ b/tests/wpt/web-platform-tests/speech-api/SpeechSynthesisEvent-constructor.html
@@ -44,6 +44,7 @@ test(() => {
   const event = new SpeechSynthesisEvent("type", {utterance: utterance});
   assert_equals(event.utterance, utterance);
   assert_equals(event.charIndex, 0);
+  assert_equals(event.charLength, 0);
   assert_equals(event.elapsedTime, 0);
   assert_equals(event.name, "");
 }, "SpeechSynthesisEvent with eventInitDict having an utterance");
@@ -53,6 +54,7 @@ test(() => {
   const event = new SpeechSynthesisEvent("type", {
     utterance: utterance,
     charIndex: 5,
+    charLength: 3,
     elapsedTime: 100,
     name: "foo"
   });
@@ -61,6 +63,7 @@ test(() => {
   assert_equals(event.type, "type");
   assert_equals(event.utterance, utterance);
   assert_equals(event.charIndex, 5);
+  assert_equals(event.charLength, 3);
   assert_equals(event.elapsedTime, 100);
   assert_equals(event.name, "foo");
 }, "SpeechSynthesisEvent with custom eventInitDict");
diff --git a/tests/wpt/web-platform-tests/svg/text/reftests/text-text-anchor-001-ref.svg b/tests/wpt/web-platform-tests/svg/text/reftests/text-text-anchor-001-ref.svg
new file mode 100644
index 00000000000..b9554bac696
--- /dev/null
+++ b/tests/wpt/web-platform-tests/svg/text/reftests/text-text-anchor-001-ref.svg
@@ -0,0 +1,41 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg id="svg-root"
+  width="100%" height="100%" viewBox="0 0 480 360"
+  xmlns="http://www.w3.org/2000/svg"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  xmlns:html="http://www.w3.org/1999/xhtml">
+  <g id="testmeta">
+    <title>Text: Text Anchor — 001</title>
+    <html:link rel="author"
+          title="Tavmjong Bah"
+          href="mailto:tavmjong@free.fr"/>
+  </g>
+
+  <style id="test-font" type="text/css">
+    /* Standard Font (if needed). */
+    @font-face {
+      font-family: FreeSans;
+      src: url("fonts/FreeSans.woff") format("woff"),
+           local("FreeSans");
+    }
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <style id="test-style" type="text/css">
+    /* Style that is being tested (if needed). */
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <g id="test-body-reference" style="font-size:16px">
+    <g transform="translate(0,0)">
+      <text x="80" y="114.8">Lorem ipsum dolor sit amet, consectetur adipisicing elit,</text>
+    </g>
+    <g transform="translate(0,60)">
+      <text x="48" y="114.8">Lorem ipsum dolor sit amet, consectetur adipisicing elit,</text>
+    </g>
+    <g transform="translate(0,120)">
+      <text x="16" y="114.8">Lorem ipsum dolor sit amet, consectetur adipisicing elit,</text>
+    </g>
+  </g>
+
+</svg>
diff --git a/tests/wpt/web-platform-tests/svg/text/reftests/text-text-anchor-001.svg b/tests/wpt/web-platform-tests/svg/text/reftests/text-text-anchor-001.svg
new file mode 100644
index 00000000000..015b3dd5ebb
--- /dev/null
+++ b/tests/wpt/web-platform-tests/svg/text/reftests/text-text-anchor-001.svg
@@ -0,0 +1,60 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg id="svg-root"
+  width="100%" height="100%" viewBox="0 0 480 360"
+  xmlns="http://www.w3.org/2000/svg"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  xmlns:html="http://www.w3.org/1999/xhtml">
+  <g id="testmeta">
+    <title>Text: Text Anchor — 001</title>
+    <html:link rel="author"
+          title="Tavmjong Bah"
+          href="mailto:tavmjong@free.fr"/>
+    <html:link rel="help"
+          href="https://svgwg.org/svg2-draft/text.html#TextAnchoringProperties"/>
+    <html:link rel="match"  href="text-text-anchor-001-ref.svg" />
+  </g>
+
+  <style id="test-font" type="text/css">
+    /* Standard Font (if needed). */
+    @font-face {
+      font-family: FreeSans;
+      src: url("fonts/FreeSans.woff") format("woff"),
+           local("FreeSans");
+    }
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <style id="test-style" type="text/css">
+    /* Style that is being tested (if needed). */
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <!-- TEMP -->
+  <g id="test-body-reference" style="font-size:16px;fill:red">
+    <g transform="translate(0,0)">
+      <circle cx="80" cy="114.8" r="2" style="fill:red"/>
+      <text x="80" y="114.8">Lorem ipsum dolor sit amet, consectetur adipisicing elit,</text>
+    </g>
+    <g transform="translate(0,60)">
+      <circle cx="240" cy="114.8" r="2" style="fill:red"/>
+      <text x="48" y="114.8">Lorem ipsum dolor sit amet, consectetur adipisicing elit,</text>
+    </g>
+    <g transform="translate(0,120)">
+      <circle cx="400" cy="114.8" r="2" style="fill:red"/>
+      <text x="17" y="114.8">Lorem ipsum dolor sit amet, consectetur adipisicing elit,</text>
+    </g>
+  </g>
+
+  <g id="test-body-content" style="font-size:16px">
+    <g transform="translate(0,0)">
+      <text x="80" y="114.8" style="text-anchor:start">Lorem ipsum dolor sit amet, consectetur adipisicing elit,</text>
+    </g>
+    <g transform="translate(0,60)">
+      <text x="240" y="114.8" style="text-anchor:middle">Lorem ipsum dolor sit amet, consectetur adipisicing elit,</text>
+    </g>
+    <g transform="translate(0,120)">
+      <text x="400" y="114.8" style="text-anchor:end">Lorem ipsum dolor sit amet, consectetur adipisicing elit,</text>
+    </g>
+  </g>
+
+</svg>
diff --git a/tests/wpt/web-platform-tests/svg/text/reftests/text-text-anchor-002-ref.svg b/tests/wpt/web-platform-tests/svg/text/reftests/text-text-anchor-002-ref.svg
new file mode 100644
index 00000000000..5721bc3e073
--- /dev/null
+++ b/tests/wpt/web-platform-tests/svg/text/reftests/text-text-anchor-002-ref.svg
@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg id="svg-root"
+  width="100%" height="100%" viewBox="0 0 480 360"
+  xmlns="http://www.w3.org/2000/svg"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  xmlns:html="http://www.w3.org/1999/xhtml">
+  <g id="testmeta">
+    <title>Text: Text Anchor — 002</title>
+    <html:link rel="author"
+          title="Tavmjong Bah"
+          href="mailto:tavmjong@free.fr"/>
+  </g>
+
+  <style id="test-font" type="text/css">
+    /* Standard Font (if needed). */
+    @font-face {
+      font-family: FreeSans;
+      src: url("fonts/FreeSans.woff") format("woff"),
+           local("FreeSans");
+    }
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <style id="test-style" type="text/css">
+    /* Style that is being tested (if needed). */
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <g id="test-body-reference" style="font-size:16px">
+    <g transform="translate(0,0)">
+      <text transform="translate(250,10) rotate(90)">
+        <tspan x="90" y="114.8">Lorem ipsum dolor sit amet,</tspan>
+      </text>
+    </g>
+    <g transform="translate(80,0)">
+      <text transform="translate(250,-40) rotate(90)" style="text-anchor:middle">
+        <tspan x="240" y="114.8">Lorem ipsum dolor sit amet,</tspan>
+      </text>
+    </g>
+    <g transform="translate(160,0)">
+      <text transform="translate(250,-90) rotate(90)" style="text-anchor:end">
+        <tspan x="390" y="114.8">Lorem ipsum dolor sit amet,</tspan>
+      </text>
+    </g>
+  </g>
+
+</svg>
diff --git a/tests/wpt/web-platform-tests/svg/text/reftests/text-text-anchor-002.svg b/tests/wpt/web-platform-tests/svg/text/reftests/text-text-anchor-002.svg
new file mode 100644
index 00000000000..503ce16625b
--- /dev/null
+++ b/tests/wpt/web-platform-tests/svg/text/reftests/text-text-anchor-002.svg
@@ -0,0 +1,65 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg id="svg-root"
+  width="100%" height="100%" viewBox="0 0 480 360"
+  xmlns="http://www.w3.org/2000/svg"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  xmlns:html="http://www.w3.org/1999/xhtml">
+  <g id="testmeta">
+    <title>Text: Text Anchor — 002</title>
+    <html:link rel="author"
+          title="Tavmjong Bah"
+          href="mailto:tavmjong@free.fr"/>
+    <html:link rel="help"
+          href="https://svgwg.org/svg2-draft/text.html#TextAnchoringProperties"/>
+    <html:link rel="match"  href="text-text-anchor-002-ref.svg" />
+  </g>
+
+  <style id="test-font" type="text/css">
+    /* Standard Font (if needed). */
+    @font-face {
+      font-family: FreeSans;
+      src: url("fonts/FreeSans.woff") format("woff"),
+           local("FreeSans");
+    }
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <style id="test-style" type="text/css">
+    /* Style that is being tested (if needed). */
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <g id="test-body-reference" style="font-size:16px;fill:red">
+    <g transform="translate(0,0)">
+      <circle cx="140" cy="100" r="2" style="fill:red"/>
+      <text transform="translate(250,10) rotate(90)">
+        <tspan x="90" y="114.8">Lorem ipsum dolor sit amet,</tspan>
+      </text>
+    </g>
+    <g transform="translate(80,0)">
+      <circle cx="140" cy="200" r="2" style="fill:red"/>
+      <text transform="translate(250,-40) rotate(90)" style="text-anchor:middle">
+        <tspan x="240" y="114.8">Lorem ipsum dolor sit amet,</tspan>
+      </text>
+    </g>
+    <g transform="translate(160,0)">
+      <circle cx="140" cy="300" r="2" style="fill:red"/>
+      <text transform="translate(250,-90) rotate(90)" style="text-anchor:end">
+        <tspan x="390" y="114.8">Lorem ipsum dolor sit amet,</tspan>
+      </text>
+    </g>
+  </g>
+
+  <g id="test-body-content" style="font-size:16px;writing-mode:tb-rl">
+    <g transform="translate(0,0)">
+      <text x="140" y="100" style="text-anchor:start">Lorem ipsum dolor sit amet,</text>
+    </g>
+    <g transform="translate(80,0)">
+      <text x="140" y="200" style="text-anchor:middle">Lorem ipsum dolor sit amet,</text>
+    </g>
+    <g transform="translate(160,0)">
+      <text x="140" y="300" style="text-anchor:end">Lorem ipsum dolor sit amet,</text>
+    </g>
+  </g>
+
+</svg>
diff --git a/tests/wpt/web-platform-tests/svg/text/reftests/text-text-anchor-003-ref.svg b/tests/wpt/web-platform-tests/svg/text/reftests/text-text-anchor-003-ref.svg
new file mode 100644
index 00000000000..797dea3d717
--- /dev/null
+++ b/tests/wpt/web-platform-tests/svg/text/reftests/text-text-anchor-003-ref.svg
@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg id="svg-root"
+  width="100%" height="100%" viewBox="0 0 480 360"
+  xmlns="http://www.w3.org/2000/svg"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  xmlns:html="http://www.w3.org/1999/xhtml">
+  <g id="testmeta">
+    <title>Text: Text Anchor — 003</title>
+    <html:link rel="author"
+          title="Tavmjong Bah"
+          href="mailto:tavmjong@free.fr"/>
+  </g>
+
+  <style id="test-font" type="text/css">
+    /* Standard Font (if needed). */
+    @font-face {
+      font-family: FreeSans;
+      src: url("fonts/FreeSans.woff") format("woff"),
+           local("FreeSans");
+    }
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <style id="test-style" type="text/css">
+    /* Style that is being tested (if needed). */
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <g id="test-body-reference" style="font-size:16px">
+    <g transform="translate(0,0)">
+      <text style="text-anchor:end">
+        <tspan x="400" y="114.8">لكن لا بد أن أوضح لك أن كل هذه الأفكار</tspan>
+      </text>
+    </g>
+    <g transform="translate(0,60)">
+      <text style="text-anchor:middle">
+        <tspan x="240" y="114.8">لكن لا بد أن أوضح لك أن كل هذه الأفكار</tspan>
+      </text>
+    </g>
+    <g transform="translate(0,120)">
+      <text>
+        <tspan x="80" y="114.8">لكن لا بد أن أوضح لك أن كل هذه الأفكار</tspan>
+      </text>
+    </g>
+  </g>
+
+</svg>
diff --git a/tests/wpt/web-platform-tests/svg/text/reftests/text-text-anchor-003.svg b/tests/wpt/web-platform-tests/svg/text/reftests/text-text-anchor-003.svg
new file mode 100644
index 00000000000..eb5063020a7
--- /dev/null
+++ b/tests/wpt/web-platform-tests/svg/text/reftests/text-text-anchor-003.svg
@@ -0,0 +1,66 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg id="svg-root"
+  width="100%" height="100%" viewBox="0 0 480 360"
+  xmlns="http://www.w3.org/2000/svg"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  xmlns:html="http://www.w3.org/1999/xhtml">
+  <g id="testmeta">
+    <title>Text: Text Anchor — 003</title>
+    <html:link rel="author"
+          title="Tavmjong Bah"
+          href="mailto:tavmjong@free.fr"/>
+    <html:link rel="help"
+          href="https://svgwg.org/svg2-draft/text.html#TextAnchoringProperties"/>
+    <html:link rel="match"  href="text-text-anchor-003-ref.svg" />
+  </g>
+
+  <style id="test-font" type="text/css">
+    /* Standard Font (if needed). */
+    @font-face {
+      font-family: FreeSans;
+      src: url("fonts/FreeSans.woff") format("woff"),
+           local("FreeSans");
+    }
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <style id="test-style" type="text/css">
+    /* Style that is being tested (if needed). */
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <!-- TEMP -->
+  <g id="test-body-reference" style="font-size:16px;fill:red">
+    <g transform="translate(0,0)">
+      <circle cx="400" cy="114.8" r="2" style="fill:red"/>
+      <text style="text-anchor:end">
+        <tspan x="400" y="114.8">لكن لا بد أن أوضح لك أن كل هذه الأفكار</tspan>
+      </text>
+    </g>
+    <g transform="translate(0,60)">
+      <circle cx="240" cy="114.8" r="2" style="fill:red"/>
+      <text style="text-anchor:middle">
+        <tspan x="240" y="114.8">لكن لا بد أن أوضح لك أن كل هذه الأفكار</tspan>
+      </text>
+    </g>
+    <g transform="translate(0,120)">
+      <circle cx="80" cy="114.8" r="2" style="fill:red"/>
+      <text>
+        <tspan x="80" y="114.8">لكن لا بد أن أوضح لك أن كل هذه الأفكار</tspan>
+      </text>
+    </g>
+  </g>
+
+  <g id="test-body-content" style="font-size:16px;direction:rtl">
+    <g transform="translate(0,0)">
+      <text x="400" y="114.8" style="text-anchor:start">لكن لا بد أن أوضح لك أن كل هذه الأفكار</text>
+    </g>
+    <g transform="translate(0,60)">
+      <text x="240" y="114.8" style="text-anchor:middle">لكن لا بد أن أوضح لك أن كل هذه الأفكار</text>
+    </g>
+    <g transform="translate(0,120)">
+      <text x="80" y="114.8" style="text-anchor:end">لكن لا بد أن أوضح لك أن كل هذه الأفكار</text>
+    </g>
+  </g>
+
+</svg>
diff --git a/tests/wpt/web-platform-tests/svg/text/reftests/text-text-anchor-102-ref.svg b/tests/wpt/web-platform-tests/svg/text/reftests/text-text-anchor-102-ref.svg
new file mode 100644
index 00000000000..9c1d98c7ab4
--- /dev/null
+++ b/tests/wpt/web-platform-tests/svg/text/reftests/text-text-anchor-102-ref.svg
@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg id="svg-root"
+  width="100%" height="100%" viewBox="0 0 480 360"
+  xmlns="http://www.w3.org/2000/svg"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  xmlns:html="http://www.w3.org/1999/xhtml">
+  <g id="testmeta">
+    <title>Text: Text Anchor — 102</title>
+    <html:link rel="author"
+          title="Tavmjong Bah"
+          href="mailto:tavmjong@free.fr"/>
+  </g>
+
+  <style id="test-font" type="text/css">
+    /* Standard Font (if needed). */
+    @font-face {
+      font-family: IPAMincho;
+      src: url("fonts/IPAMincho.woff") format("woff"),
+           local("IPAMincho");
+    }
+    text { font-family: IPAMincho, sans-serif }
+  </style>
+
+  <g id="test-body-reference" style="font-size:16px">
+    <g transform="translate(0,0)">
+      <text x="132 132 132 132 132 132 132" y="114 130 146 162 178 194 210 ">千利奴流乎和加</text>
+    </g>
+    <g transform="translate(80,0)">
+      <text x="140" y="144" style="writing-mode:tb-rl">千利奴流乎和加</text>
+    </g>
+    <g transform="translate(160,0)">
+      <text x="140" y="188" style="writing-mode:tb-rl">千利奴流乎和加</text>
+    </g>
+  </g>
+
+</svg>
diff --git a/tests/wpt/web-platform-tests/svg/text/reftests/text-text-anchor-102.svg b/tests/wpt/web-platform-tests/svg/text/reftests/text-text-anchor-102.svg
new file mode 100644
index 00000000000..8cdcc988ded
--- /dev/null
+++ b/tests/wpt/web-platform-tests/svg/text/reftests/text-text-anchor-102.svg
@@ -0,0 +1,54 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg id="svg-root"
+  width="100%" height="100%" viewBox="0 0 480 360"
+  xmlns="http://www.w3.org/2000/svg"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  xmlns:html="http://www.w3.org/1999/xhtml">
+  <g id="testmeta">
+    <title>Text: Text Anchor — 102</title>
+    <html:link rel="author"
+          title="Tavmjong Bah"
+          href="mailto:tavmjong@free.fr"/>
+    <html:link rel="help"
+          href="https://svgwg.org/svg2-draft/text.html#TextAnchoringProperties"/>
+    <html:link rel="match"  href="text-text-anchor-102-ref.svg" />
+  </g>
+
+  <style id="test-font" type="text/css">
+    /* Standard Font (if needed). */
+    @font-face {
+      font-family: IPAMincho;
+      src: url("fonts/IPaMincho.woff") format("woff"),
+           local("IPAMincho");
+    }
+    text { font-family: IPAMincho, sans-serif }
+  </style>
+
+  <g id="test-body-reference" style="font-size:16px;fill:red">
+    <g transform="translate(0,0)">
+      <circle cx="140" cy="100" r="2" style="fill:red"/>
+      <text x="132 132 132 132 132 132 132" y="114 130 146 162 178 194 210 ">千利奴流乎和加</text>
+    </g>
+    <g transform="translate(80,0)">
+      <circle cx="140" cy="200" r="2" style="fill:red"/>
+      <text x="140" y="144" style="writing-mode:tb-rl">千利奴流乎和加</text>
+    </g>
+    <g transform="translate(160,0)">
+      <circle cx="140" cy="300" r="2" style="fill:red"/>
+      <text x="140" y="188" style="writing-mode:tb-rl">千利奴流乎和加</text>
+    </g>
+  </g>
+
+  <g id="test-body-content" style="font-size:16px;writing-mode:tb-rl">
+    <g transform="translate(0,0)">
+      <text x="140" y="100" style="text-anchor:start">千利奴流乎和加</text>
+    </g>
+    <g transform="translate(80,0)">
+      <text x="140" y="200" style="text-anchor:middle">千利奴流乎和加</text>
+    </g>
+    <g transform="translate(160,0)">
+      <text x="140" y="300" style="text-anchor:end">千利奴流乎和加</text>
+    </g>
+  </g>
+
+</svg>
diff --git a/tests/wpt/web-platform-tests/svg/text/reftests/text-text-anchor-201-ref.svg b/tests/wpt/web-platform-tests/svg/text/reftests/text-text-anchor-201-ref.svg
new file mode 100644
index 00000000000..d8b6cc4e67d
--- /dev/null
+++ b/tests/wpt/web-platform-tests/svg/text/reftests/text-text-anchor-201-ref.svg
@@ -0,0 +1,41 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg id="svg-root"
+  width="100%" height="100%" viewBox="0 0 480 360"
+  xmlns="http://www.w3.org/2000/svg"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  xmlns:html="http://www.w3.org/1999/xhtml">
+  <g id="testmeta">
+    <title>Text: Text Anchor — 201</title>
+    <html:link rel="author"
+          title="Tavmjong Bah"
+          href="mailto:tavmjong@free.fr"/>
+  </g>
+
+  <style id="test-font" type="text/css">
+    /* Standard Font (if needed). */
+    @font-face {
+      font-family: FreeSans;
+      src: url("fonts/FreeSans.woff") format("woff"),
+           local("FreeSans");
+    }
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <style id="test-style" type="text/css">
+    /* Style that is being tested (if needed). */
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <g id="test-body-reference" style="font-size:16px">
+    <g transform="translate(0,0)">
+      <text x="200" y="114.8">Lorem ipsum dolor</text>
+    </g>
+    <g transform="translate(0,60)">
+      <text x="200" y="114.8" style="text-anchor:middle">sit amet, consectetur</text>
+    </g>
+    <g transform="translate(0,120)">
+      <text x="200" y="114.8" style="text-anchor:end">adipisicing elit,</text>
+    </g>
+  </g>
+
+</svg>
diff --git a/tests/wpt/web-platform-tests/svg/text/reftests/text-text-anchor-201.svg b/tests/wpt/web-platform-tests/svg/text/reftests/text-text-anchor-201.svg
new file mode 100644
index 00000000000..84b644cd6a5
--- /dev/null
+++ b/tests/wpt/web-platform-tests/svg/text/reftests/text-text-anchor-201.svg
@@ -0,0 +1,56 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg id="svg-root"
+  width="100%" height="100%" viewBox="0 0 480 360"
+  xmlns="http://www.w3.org/2000/svg"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  xmlns:html="http://www.w3.org/1999/xhtml">
+  <g id="testmeta">
+    <title>Text: Text Anchor — 201</title>
+    <html:link rel="author"
+          title="Tavmjong Bah"
+          href="mailto:tavmjong@free.fr"/>
+    <html:link rel="help"
+          href="https://svgwg.org/svg2-draft/text.html#TextAnchoringProperties"/>
+    <html:link rel="match"  href="text-text-anchor-201-ref.svg" />
+  </g>
+
+  <style id="test-font" type="text/css">
+    /* Standard Font (if needed). */
+    @font-face {
+      font-family: FreeSans;
+      src: url("fonts/FreeSans.woff") format("woff"),
+           local("FreeSans");
+    }
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <style id="test-style" type="text/css">
+    /* Style that is being tested (if needed). */
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <!-- TEMP -->
+  <g id="test-body-reference" style="font-size:16px;fill:red">
+    <g transform="translate(0,0)">
+      <circle cx="200" cy="114.8" r="2" style="fill:red"/>
+      <text x="200" y="114.8">Lorem ipsum dolor</text>
+    </g>
+    <g transform="translate(0,60)">
+      <circle cx="200" cy="114.8" r="2" style="fill:red"/>
+      <text x="200" y="114.8" style="text-anchor:middle">sit amet, consectetur</text>
+    </g>
+    <g transform="translate(0,120)">
+      <circle cx="200" cy="114.8" r="2" style="fill:red"/>
+      <text x="200" y="114.8" style="text-anchor:end">adipisicing elit,</text>
+    </g>
+  </g>
+
+  <g id="test-body-content" style="font-size:16px">
+      <text>
+        <tspan x="200" y="114.8" style="text-anchor:start">Lorem ipsum dolor</tspan>
+        <tspan x="200" y="174.8" style="text-anchor:middle">sit amet, consectetur</tspan>
+        <tspan x="200" y="234.8" style="text-anchor:end">adipisicing elit,</tspan>
+      </text>
+  </g>
+
+</svg>
diff --git a/tests/wpt/web-platform-tests/svg/text/reftests/text-text-anchor-202-ref.svg b/tests/wpt/web-platform-tests/svg/text/reftests/text-text-anchor-202-ref.svg
new file mode 100644
index 00000000000..72a8ee15a62
--- /dev/null
+++ b/tests/wpt/web-platform-tests/svg/text/reftests/text-text-anchor-202-ref.svg
@@ -0,0 +1,41 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg id="svg-root"
+  width="100%" height="100%" viewBox="0 0 480 360"
+  xmlns="http://www.w3.org/2000/svg"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  xmlns:html="http://www.w3.org/1999/xhtml">
+  <g id="testmeta">
+    <title>Text: Text Anchor — 202</title>
+    <html:link rel="author"
+          title="Tavmjong Bah"
+          href="mailto:tavmjong@free.fr"/>
+  </g>
+
+  <style id="test-font" type="text/css">
+    /* Standard Font (if needed). */
+    @font-face {
+      font-family: FreeSans;
+      src: url("fonts/FreeSans.woff") format("woff"),
+           local("FreeSans");
+    }
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <style id="test-style" type="text/css">
+    /* Style that is being tested (if needed). */
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <g id="test-body-reference" style="font-size:16px;writing-mode:tb-rl">
+    <g transform="translate(0,0)">
+      <text x="140" y="200">Lorem ipsum dolor</text>
+    </g>
+    <g transform="translate(80,0)">
+      <text x="140" y="200" style="text-anchor:middle">sit amet, consectetur</text>
+    </g>
+    <g transform="translate(160,0)">
+      <text x="140" y="200" style="text-anchor:end">adipisicing elit,</text>
+    </g>
+  </g>
+
+</svg>
diff --git a/tests/wpt/web-platform-tests/svg/text/reftests/text-text-anchor-202.svg b/tests/wpt/web-platform-tests/svg/text/reftests/text-text-anchor-202.svg
new file mode 100644
index 00000000000..79792ed33b6
--- /dev/null
+++ b/tests/wpt/web-platform-tests/svg/text/reftests/text-text-anchor-202.svg
@@ -0,0 +1,56 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg id="svg-root"
+  width="100%" height="100%" viewBox="0 0 480 360"
+  xmlns="http://www.w3.org/2000/svg"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  xmlns:html="http://www.w3.org/1999/xhtml">
+  <g id="testmeta">
+    <title>Text: Text Anchor — 202</title>
+    <html:link rel="author"
+          title="Tavmjong Bah"
+          href="mailto:tavmjong@free.fr"/>
+    <html:link rel="help"
+          href="https://svgwg.org/svg2-draft/text.html#TextAnchoringProperties"/>
+    <html:link rel="match"  href="text-text-anchor-202-ref.svg" />
+  </g>
+
+  <style id="test-font" type="text/css">
+    /* Standard Font (if needed). */
+    @font-face {
+      font-family: FreeSans;
+      src: url("fonts/FreeSans.woff") format("woff"),
+           local("FreeSans");
+    }
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <style id="test-style" type="text/css">
+    /* Style that is being tested (if needed). */
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <!-- TEMP -->
+  <g id="test-body-reference" style="font-size:16px;writing-mode:tb-rl;fill:red">
+    <g transform="translate(0,0)">
+      <circle cx="140" cy="200" r="2" style="fill:red"/>
+      <text x="140" y="200">Lorem ipsum dolor</text>
+    </g>
+    <g transform="translate(80,0)">
+      <circle cx="140" cy="200" r="2" style="fill:red"/>
+      <text x="140" y="200" style="text-anchor:middle">sit amet, consectetur</text>
+    </g>
+    <g transform="translate(160,0)">
+      <circle cx="140" cy="200" r="2" style="fill:red"/>
+      <text x="140" y="200" style="text-anchor:end">adipisicing elit,</text>
+    </g>
+  </g>
+
+  <g id="test-body-content" style="font-size:16px;writing-mode:tb-rl">
+      <text>
+        <tspan x="140" y="200" style="text-anchor:start">Lorem ipsum dolor</tspan>
+        <tspan x="220" y="200" style="text-anchor:middle">sit amet, consectetur</tspan>
+        <tspan x="300" y="200" style="text-anchor:end">adipisicing elit,</tspan>
+      </text>
+  </g>
+
+</svg>
diff --git a/tests/wpt/web-platform-tests/svg/text/reftests/text-text-anchor-203-ref.svg b/tests/wpt/web-platform-tests/svg/text/reftests/text-text-anchor-203-ref.svg
new file mode 100644
index 00000000000..7ee99a2dcb8
--- /dev/null
+++ b/tests/wpt/web-platform-tests/svg/text/reftests/text-text-anchor-203-ref.svg
@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg id="svg-root"
+  width="100%" height="100%" viewBox="0 0 480 360"
+  xmlns="http://www.w3.org/2000/svg"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  xmlns:html="http://www.w3.org/1999/xhtml">
+  <g id="testmeta">
+    <title>Text: Text Anchor — 203</title>
+    <html:link rel="author"
+          title="Tavmjong Bah"
+          href="mailto:tavmjong@free.fr"/>
+  </g>
+
+  <style id="test-font" type="text/css">
+    /* Standard Font (if needed). */
+    @font-face {
+      font-family: FreeSans;
+      src: url("fonts/FreeSans.woff") format("woff"),
+           local("FreeSans");
+    }
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <style id="test-style" type="text/css">
+    /* Style that is being tested (if needed). */
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <g id="test-body-reference" style="font-size:16px">
+    <g transform="translate(0,0)">
+      <text style="text-anchor:end">
+        <tspan x="200" y="114.8">لكن لا بد أن</tspan>
+      </text>
+    </g>
+    <g transform="translate(0,60)">
+      <text style="text-anchor:middle">
+        <tspan x="200" y="114.8" style="text-anchor:middle">أوضح لك أن</tspan>
+      </text>
+    </g>
+    <g transform="translate(0,120)">
+      <text>
+        <tspan x="200" y="114.8" style="text-anchor:start">كل هذه الأفكار</tspan>
+      </text>
+    </g>
+  </g>
+
+</svg>
diff --git a/tests/wpt/web-platform-tests/svg/text/reftests/text-text-anchor-203.svg b/tests/wpt/web-platform-tests/svg/text/reftests/text-text-anchor-203.svg
new file mode 100644
index 00000000000..bb7c8206a11
--- /dev/null
+++ b/tests/wpt/web-platform-tests/svg/text/reftests/text-text-anchor-203.svg
@@ -0,0 +1,62 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg id="svg-root"
+  width="100%" height="100%" viewBox="0 0 480 360"
+  xmlns="http://www.w3.org/2000/svg"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  xmlns:html="http://www.w3.org/1999/xhtml">
+  <g id="testmeta">
+    <title>Text: Text Anchor — 203</title>
+    <html:link rel="author"
+          title="Tavmjong Bah"
+          href="mailto:tavmjong@free.fr"/>
+    <html:link rel="help"
+          href="https://svgwg.org/svg2-draft/text.html#TextAnchoringProperties"/>
+    <html:link rel="match"  href="text-text-anchor-003-ref.svg" />
+  </g>
+
+  <style id="test-font" type="text/css">
+    /* Standard Font (if needed). */
+    @font-face {
+      font-family: FreeSans;
+      src: url("fonts/FreeSans.woff") format("woff"),
+           local("FreeSans");
+    }
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <style id="test-style" type="text/css">
+    /* Style that is being tested (if needed). */
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <!-- TEMP -->
+  <g id="test-body-reference" style="font-size:16px;fill:red">
+    <g transform="translate(0,0)">
+      <circle cx="200" cy="114.8" r="2" style="fill:red"/>
+      <text style="text-anchor:end">
+        <tspan x="200" y="114.8">لكن لا بد أن</tspan>
+      </text>
+    </g>
+    <g transform="translate(0,60)">
+      <circle cx="200" cy="114.8" r="2" style="fill:red"/>
+      <text style="text-anchor:middle">
+        <tspan x="200" y="114.8" style="text-anchor:middle">أوضح لك أن</tspan>
+      </text>
+    </g>
+    <g transform="translate(0,120)">
+      <circle cx="200" cy="114.8" r="2" style="fill:red"/>
+      <text>
+        <tspan x="200" y="114.8" style="text-anchor:start">كل هذه الأفكار</tspan>
+      </text>
+    </g>
+  </g>
+
+  <g id="test-body-content" style="font-size:16px;direction:rtl">
+    <text>
+      <tspan x="200" y="114.8" style="text-anchor:start">لكن لا بد أن</tspan>
+      <tspan x="200" y="174.8" style="text-anchor:middle">أوضح لك أن</tspan>
+      <tspan x="200" y="234.8" style="text-anchor:end">كل هذه الأفكار</tspan>
+    </text>
+  </g>
+
+</svg>
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..17fca51d50c 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
@@ -16,7 +16,7 @@ steps:
 - template: install_safari.yml
 - template: update_hosts.yml
 - template: update_manifest.yml
-- script: no_proxy='*' ./wpt run --yes --no-pause --no-fail-on-unexpected --no-restart-on-unexpected --affected ${{ parameters.affectedRange }} --log-wptreport $(Build.ArtifactStagingDirectory)/wpt_report.json --log-wptscreenshot $(Build.ArtifactStagingDirectory)/wpt_screenshot.txt --channel preview safari
+- script: no_proxy='*' ./wpt run --yes --no-pause --no-fail-on-unexpected --no-restart-on-unexpected --affected ${{ parameters.affectedRange }} --log-wptreport $(Build.ArtifactStagingDirectory)/wpt_report.json --channel preview safari
   displayName: 'Run tests'
 - task: PublishBuildArtifacts@1
   displayName: 'Publish results'
diff --git a/tests/wpt/web-platform-tests/tools/manifest/item.py b/tests/wpt/web-platform-tests/tools/manifest/item.py
index 01a208eea05..5e313faa751 100644
--- a/tests/wpt/web-platform-tests/tools/manifest/item.py
+++ b/tests/wpt/web-platform-tests/tools/manifest/item.py
@@ -39,18 +39,13 @@ class ManifestItem(object):
         """A unique identifier for the test"""
         return (self.item_type, self.id)
 
-    def meta_key(self):
-        """Extra metadata that doesn't form part of the test identity, but for
-        which changes mean regenerating the manifest (e.g. the test timeout)."""
-        return ()
-
     def __eq__(self, other):
         if not hasattr(other, "key"):
             return False
         return self.key() == other.key()
 
     def __hash__(self):
-        return hash(self.key() + self.meta_key())
+        return hash(self.key())
 
     def __repr__(self):
         return "<%s.%s id=%s, path=%s>" % (self.__module__, self.__class__.__name__, self.id, self.path)
@@ -137,12 +132,6 @@ class TestharnessTest(URLManifestItem):
             # this branch should go when the manifest version is bumped
             return self._source_file.script_metadata
 
-    def meta_key(self):
-        script_metadata = self.script_metadata
-        if script_metadata is not None:
-            script_metadata = tuple(tuple(x) for x in script_metadata)
-        return (self.timeout, self.testdriver, self.jsshell, script_metadata)
-
     def to_json(self):
         rv = super(TestharnessTest, self).to_json()
         if self.timeout is not None:
@@ -189,9 +178,6 @@ class RefTestBase(URLManifestItem):
                     for item in self._extras.get("fuzzy", [])}
         return rv
 
-    def meta_key(self):
-        return (self.timeout, self.viewport_size, self.dpi)
-
     def to_json(self):
         rv = [self._url, self.references, {}]
         extras = rv[-1]
diff --git a/tests/wpt/web-platform-tests/tools/manifest/manifest.py b/tests/wpt/web-platform-tests/tools/manifest/manifest.py
index dc57c24ddb0..e2e35d7ff99 100644
--- a/tests/wpt/web-platform-tests/tools/manifest/manifest.py
+++ b/tests/wpt/web-platform-tests/tools/manifest/manifest.py
@@ -162,6 +162,21 @@ class TypeData(object):
         self.tests_root = tests_root
         self.json_data = data
 
+    def to_json(self):
+        data = {
+            from_os_path(path):
+            [t for t in sorted(test.to_json() for test in tests)]
+            for path, tests in iteritems(self.data)
+        }
+
+        if self.json_data is not None:
+            if not data:
+                # avoid copying if there's nothing here yet
+                return self.json_data
+            data.update(self.json_data)
+
+        return data
+
     def paths(self):
         """Get a list of all paths containing items of this type,
         without actually constructing all the items"""
@@ -363,11 +378,7 @@ class Manifest(object):
 
     def to_json(self):
         out_items = {
-            test_type: {
-                from_os_path(path):
-                [t for t in sorted(test.to_json() for test in tests)]
-                for path, tests in iteritems(type_paths)
-            }
+            test_type: type_paths.to_json()
             for test_type, type_paths in iteritems(self._data) if type_paths
         }
         rv = {"url_base": self.url_base,
diff --git a/tests/wpt/web-platform-tests/tools/manifest/sourcefile.py b/tests/wpt/web-platform-tests/tools/manifest/sourcefile.py
index 78843b089b8..97fe89bbda8 100644
--- a/tests/wpt/web-platform-tests/tools/manifest/sourcefile.py
+++ b/tests/wpt/web-platform-tests/tools/manifest/sourcefile.py
@@ -843,6 +843,8 @@ class SourceFile(object):
                     self.rel_path
                 )]
 
+        assert len(rv[1]) == len(set(rv[1]))
+
         self.items_cache = rv
 
         return rv
diff --git a/tests/wpt/web-platform-tests/tools/manifest/tests/test_item.py b/tests/wpt/web-platform-tests/tools/manifest/tests/test_item.py
index e68b6cec41b..a73d46be685 100644
--- a/tests/wpt/web-platform-tests/tools/manifest/tests/test_item.py
+++ b/tests/wpt/web-platform-tests/tools/manifest/tests/test_item.py
@@ -1,6 +1,6 @@
 import pytest
 
-from ..item import URLManifestItem, TestharnessTest
+from ..item import URLManifestItem
 
 
 @pytest.mark.parametrize("path", [
@@ -39,28 +39,3 @@ def test_url_not_https(path):
     m = URLManifestItem("/foobar", "/" + path, "/", "/foo.bar/" + path)
 
     assert m.https is False
-
-
-def test_testharness_meta_key_includes_jsshell():
-    a = TestharnessTest("/foobar", "/foo", "/foo.bar", "/foo.bar/foo",
-                        jsshell=False, script_metadata=[])
-    b = TestharnessTest("/foobar", "/foo", "/foo.bar", "/foo.bar/foo",
-                        jsshell=True, script_metadata=[])
-
-    assert a.meta_key() != b.meta_key()
-
-
-@pytest.mark.parametrize("script_metadata", [
-    None,
-    [],
-    [('script', '/resources/WebIDLParser.js'), ('script', '/resources/idlharness.js')],
-    [[u'script', u'/resources/WebIDLParser.js'], [u'script', u'/resources/idlharness.js']],
-])
-def test_testharness_hashable_script_metadata(script_metadata):
-    a = TestharnessTest("/",
-                        "BackgroundSync/interfaces.https.any.js",
-                        "/",
-                        "/BackgroundSync/interfaces.https.any.js",
-                        script_metadata=script_metadata)
-
-    assert hash(a) is not None
diff --git a/tests/wpt/web-platform-tests/tools/manifest/vcs.py b/tests/wpt/web-platform-tests/tools/manifest/vcs.py
index ecd565cf9e7..0b3ba9aac2f 100644
--- a/tests/wpt/web-platform-tests/tools/manifest/vcs.py
+++ b/tests/wpt/web-platform-tests/tools/manifest/vcs.py
@@ -69,25 +69,23 @@ class Git(object):
                        manifest_path=manifest_path, rebuild=rebuild)
 
     def _local_changes(self):
-        changes = {}
+        """get a set of files which have changed between HEAD and working copy"""
+        changes = set()
+
         cmd = ["status", "-z", "--ignore-submodules=all"]
         data = self.git(*cmd)
 
-        if data == "":
-            return changes
-
-        rename_data = None
-        for entry in data.split("\0")[:-1]:
-            if rename_data is not None:
-                status, rel_path = entry.split(" ")
-                if status[0] == "R":
-                    rename_data = (rel_path, status)
-                else:
-                    changes[rel_path] = (status, None)
+        in_rename = False
+        for line in data.split(b"\0")[:-1]:
+            if in_rename:
+                changes.add(line)
+                in_rename = False
             else:
-                rel_path = entry
-                changes[rel_path] = rename_data
-                rename_data = None
+                status = line[:2]
+                if b"R" in status or b"C" in status:
+                    in_rename = True
+                changes.add(line[3:])
+
         return changes
 
     def _show_file(self, path):
@@ -98,8 +96,8 @@ class Git(object):
         cmd = ["ls-tree", "-r", "-z", "HEAD"]
         local_changes = self._local_changes()
         for result in self.git(*cmd).split("\0")[:-1]:
-            rel_path = result.split("\t")[-1]
-            hash = result.split()[2]
+            rel_path = result.rsplit("\t", 1)[-1]
+            hash = result.split(" ", 3)[2]
             if rel_path in local_changes:
                 contents = self._show_file(rel_path)
             else:
diff --git a/tests/wpt/web-platform-tests/wake-lock/idlharness.https.any.js b/tests/wpt/web-platform-tests/wake-lock/idlharness.https.any.js
new file mode 100644
index 00000000000..5e3ae75064c
--- /dev/null
+++ b/tests/wpt/web-platform-tests/wake-lock/idlharness.https.any.js
@@ -0,0 +1,16 @@
+// META: script=/resources/WebIDLParser.js
+// META: script=/resources/idlharness.js
+
+// https://w3c.github.io/wake-lock/
+
+'use strict';
+
+idl_test(
+  ['wake-lock'],
+  ['dom', 'html'],
+  idl_array => {
+    idl_array.add_objects({
+      WakeLock: ['new WakeLock("screen")']
+    });
+  }
+);
diff --git a/tests/wpt/web-platform-tests/wake-lock/idlharness.https.window.js b/tests/wpt/web-platform-tests/wake-lock/idlharness.https.window.js
deleted file mode 100644
index 21d559a7a26..00000000000
--- a/tests/wpt/web-platform-tests/wake-lock/idlharness.https.window.js
+++ /dev/null
@@ -1,31 +0,0 @@
-// META: script=/resources/WebIDLParser.js
-// META: script=/resources/idlharness.js
-
-// https://w3c.github.io/wake-lock/
-
-'use strict';
-
-promise_test(async () => {
-  const srcs = ['wake-lock', 'dom', 'html'];
-  const [wakelock, dom, html] = await Promise.all(
-    srcs.map(i => fetch(`/interfaces/${i}.idl`).then(r => r.text())));
-
-  const idl_array = new IdlArray();
-  idl_array.add_idls(wakelock);
-  idl_array.add_dependency_idls(dom);
-  idl_array.add_dependency_idls(html);
-
-  try {
-    window.wakelock = await navigator.getWakeLock("screen");
-    window.request = window.wakelock.createRequest();
-  } catch (e) {
-    // Surfaced in idlharness.js's test_object below.
-  }
-
-  idl_array.add_objects({
-    Navigator: ['navigator'],
-    WakeLock: ['wakelock'],
-    WakeLockRequest: ['request']
-  });
-  idl_array.test();
-}, 'Test IDL implementation of WakeLock API');
diff --git a/tests/wpt/web-platform-tests/wake-lock/wakelock-api.https.html b/tests/wpt/web-platform-tests/wake-lock/wakelock-api.https.html
deleted file mode 100644
index 45a906dfa1f..00000000000
--- a/tests/wpt/web-platform-tests/wake-lock/wakelock-api.https.html
+++ /dev/null
@@ -1,20 +0,0 @@
-<!DOCTYPE html>
-<meta charset="utf-8">
-<title>Wake Lock API Test</title>
-<link rel="help" href="https://w3c.github.io/wake-lock/">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-
-<script>
-
-promise_test(async t => {
-  assert_true("getWakeLock" in navigator, "Wake Lock API is present");
-  const wakeLock = await navigator.getWakeLock("screen");
-  const request = wakeLock.createRequest();
-  assert_true(wakeLock instanceof WakeLock, "wakeLock is a WakeLock");
-  assert_equals(typeof wakeLock.type, "string", "the type of wakeLock.type is string");
-  assert_equals(typeof wakeLock.active, "boolean", "the type of wakeLock.active is boolean");
-  assert_true(request instanceof WakeLockRequest, "request is a WakeLockRequest");
-}, "Test that the Wake Lock API is correct");
-
-</script>
diff --git a/tests/wpt/web-platform-tests/wake-lock/wakelock-applicability-manual.https.html b/tests/wpt/web-platform-tests/wake-lock/wakelock-applicability-manual.https.html
index 5dbd27818dd..2bd5c9dba4d 100644
--- a/tests/wpt/web-platform-tests/wake-lock/wakelock-applicability-manual.https.html
+++ b/tests/wpt/web-platform-tests/wake-lock/wakelock-applicability-manual.https.html
@@ -1,7 +1,7 @@
 <!DOCTYPE html>
 <meta charset="utf-8">
 <title>wake lock applicability test</title>
-<link rel="help" href="https://w3c.github.io/wake-lock/#dfn-the-wake-lock-is-applicable">
+<link rel="help" href="https://w3c.github.io/wake-lock/#dfn-applicable-wake-lock">
 <meta name="flags" content="interact">
 <script src="/resources/testharness.js"></script>
 <script src="/resources/testharnessreport.js"></script>
@@ -16,10 +16,14 @@
 setup({ explicit_timeout: true });
 
 promise_test(async t => {
-  const wakeLock = await navigator.getWakeLock("screen");
-  const request = wakeLock.createRequest();
+  const wakeLock = new WakeLock("screen");
+
+  const controller = new AbortController();
+  const signal = controller.signal;
+
+  await wakeLock.request({ signal });
   assert_true(wakeLock.active, "the active is true when wake lock is acquired");
-  const eventWatcher = new EventWatcher(t, document, "visibilitychange")
+  const eventWatcher = new EventWatcher(t, document, "visibilitychange");
 
   //lock screen to fire 'visibilitychange'
   await eventWatcher.wait_for("visibilitychange");
@@ -30,22 +34,26 @@ promise_test(async t => {
   await eventWatcher.wait_for("visibilitychange");
   assert_false(document.hidden, "document is visiable when screen is unlocked");
   assert_true(wakeLock.active, "the screen wake lock is active when screen is switched on again");
-  request.cancel();
+  controller.abort();
 }, "The screen wake lock isn't applicable after the screen is manually swiched off"
   + " by the user until it is switched on again.");
 
 
 promise_test(async t => {
-  const wakeLock = await navigator.getWakeLock("system");
-  const request = wakeLock.createRequest();
+  const wakeLock = new WakeLock("system");
+
+  const controller = new AbortController();
+  const signal = controller.signal;
+
+  await wakeLock.request({ signal });
   assert_true(wakeLock.active, "the active is true when wake lock is acquired");
-  const eventWatcher = new EventWatcher(t, document, "visibilitychange")
+  const eventWatcher = new EventWatcher(t, document, "visibilitychange");
 
   //lock screen to fire 'visibilitychange'
   await eventWatcher.wait_for("visibilitychange");
   assert_true(document.hidden, "document is hidden when screen is locked");
   assert_true(wakeLock.active, "the system wake lock is still active when screen is switched off");
-  request.cancel();
+  controller.abort();
 }, "Manually switching off the screen will not affect the applicability of the system wake lock.");
 
 </script>
diff --git a/tests/wpt/web-platform-tests/wake-lock/wakelock-cancel-twice.https.html b/tests/wpt/web-platform-tests/wake-lock/wakelock-cancel-twice.https.html
deleted file mode 100644
index 68e8a195816..00000000000
--- a/tests/wpt/web-platform-tests/wake-lock/wakelock-cancel-twice.https.html
+++ /dev/null
@@ -1,20 +0,0 @@
-<!DOCTYPE html>
-<meta charset="utf-8">
-<title>no exception is thrown when invoking cancel() twice</title>
-<link rel="help" href="https://w3c.github.io/wake-lock/#dom-wakelockrequest-cancel">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script>
-
-promise_test(async t => {
-  const wakeLock = await navigator.getWakeLock("screen");
-  const request = wakeLock.createRequest();
-  assert_true(wakeLock.active, "the activate is true when wake lock is acquired");
-  request.cancel();
-  assert_false(wakeLock.active, "the activate is false when wake lock is released");
-  //If the cancel() method has already been invoked on this object,
-  //abort these steps, no error fired
-  request.cancel();
-}, "no exception is thrown when invoking cancel() twice");
-
-</script>
diff --git a/tests/wpt/web-platform-tests/wake-lock/wakelock-document-hidden.https.html b/tests/wpt/web-platform-tests/wake-lock/wakelock-document-hidden.https.html
index 6bb406a1c2e..1edafee45fc 100644
--- a/tests/wpt/web-platform-tests/wake-lock/wakelock-document-hidden.https.html
+++ b/tests/wpt/web-platform-tests/wake-lock/wakelock-document-hidden.https.html
@@ -7,8 +7,12 @@
 <script>
 
 promise_test(async t => {
-  const wakeLock = await navigator.getWakeLock("screen");
-  const request = wakeLock.createRequest();
+  const wakeLock = new WakeLock("screen");
+
+  const controller = new AbortController();
+  const signal = controller.signal;
+
+  await wakeLock.request({ signal });
   assert_true(wakeLock.active, "the active is true when wake lock is acquired");
   const eventWatcher = new EventWatcher(t, document, "visibilitychange");
   const win = window.open("about:blank", "_blank");
@@ -21,7 +25,7 @@ promise_test(async t => {
   await eventWatcher.wait_for("visibilitychange");
   assert_false(document.hidden, "document is visiable when new window is closed");
   assert_true(wakeLock.active, "the active is true when document regains visibility");
-  request.cancel();
+  controller.abort();
 }, "Test that screen wake lock will not be actived in hidden document");
 
 </script>
diff --git a/tests/wpt/web-platform-tests/wake-lock/wakelock-insecure-context.html b/tests/wpt/web-platform-tests/wake-lock/wakelock-insecure-context.html
index 8d728f83e5d..2c61f41311d 100644
--- a/tests/wpt/web-platform-tests/wake-lock/wakelock-insecure-context.html
+++ b/tests/wpt/web-platform-tests/wake-lock/wakelock-insecure-context.html
@@ -7,7 +7,7 @@
 <script>
 
 test(t => {
-  assert_false("getWakeLock" in navigator, "'getWakeLock' must not be exposed");
+  assert_false("WakeLock" in self, "'WakeLock' must not be exposed");
 }, "Wake Lock API is not exposed in an insecure context");
 
 </script>
diff --git a/tests/wpt/web-platform-tests/wake-lock/wakelock-onactivechange.https.html b/tests/wpt/web-platform-tests/wake-lock/wakelock-onactivechange.https.html
index 899b9b78d95..381e1e40f1c 100644
--- a/tests/wpt/web-platform-tests/wake-lock/wakelock-onactivechange.https.html
+++ b/tests/wpt/web-platform-tests/wake-lock/wakelock-onactivechange.https.html
@@ -8,18 +8,21 @@
 <script>
 
 promise_test(async t => {
-  const wakeLock = await navigator.getWakeLock("screen");
+  const wakeLock = new WakeLock("screen");
   const eventWatcher = new EventWatcher(t, wakeLock, "activechange");
   assert_false(wakeLock.active, "the active is false before wake lock is acquired");
 
-  let request = wakeLock.createRequest();
+  const controller = new AbortController();
+  const signal = controller.signal;
+
+  await wakeLock.request({ signal });
   let evt1 = await eventWatcher.wait_for("activechange");
   assert_true(evt1.isTrusted && !evt1.bubbles && !evt1.cancelable && evt1 instanceof Event, "a simple event is fired");
   assert_equals(evt1.type, "activechange", "the event name is 'activechange'");
   assert_equals(evt1.target, wakeLock, "event.target is WakeLock.");
   assert_true(wakeLock.active, "the active is true when wake lock is acquired");
 
-  request.cancel();
+  controller.abort();
   let evt2 = await eventWatcher.wait_for("activechange");
   assert_true(evt2.isTrusted && !evt2.bubbles && !evt2.cancelable && evt2 instanceof Event, "a simple event is fired");
   assert_false(wakeLock.active, "the active is false when wake lock is released");
diff --git a/tests/wpt/web-platform-tests/wake-lock/wakelock-promise.https.html b/tests/wpt/web-platform-tests/wake-lock/wakelock-promise.https.html
deleted file mode 100644
index 3d4c4868699..00000000000
--- a/tests/wpt/web-platform-tests/wake-lock/wakelock-promise.https.html
+++ /dev/null
@@ -1,13 +0,0 @@
-<!DOCTYPE html>
-<meta charset="utf-8">
-<title>navigator.getWakeLock() for the same Document always return same WakeLock promise</title>
-<link rel="help" href="https://w3c.github.io/wake-lock/">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script>
-promise_test(async t => {
-  const wakeLock1 = await navigator.getWakeLock("screen");
-  const wakeLock2 = await navigator.getWakeLock("screen");
-  assert_equals(wakeLock1, wakeLock2);
-}, "navigator.getWakeLock() for the same Document always return same WakeLock promise");
-</script>
diff --git a/tests/wpt/web-platform-tests/wake-lock/wakelock-state-is-global.https.html b/tests/wpt/web-platform-tests/wake-lock/wakelock-state-is-global.https.html
index 98cebe01c11..2eee3198249 100644
--- a/tests/wpt/web-platform-tests/wake-lock/wakelock-state-is-global.https.html
+++ b/tests/wpt/web-platform-tests/wake-lock/wakelock-state-is-global.https.html
@@ -7,16 +7,18 @@
 
 <body>
 <script id="iframe" type="text/plain">
-let iframeWakeLock, iframeRequest;
+let iframeWakeLock;
+const controller = new AbortController();
+const signal = controller.signal;
 window.onmessage = async message => {
   switch(message.data) {
   case "ACQUIRED":
-    iframeWakeLock = await navigator.getWakeLock("screen");
-    iframeRequest = iframeWakeLock.createRequest();
+    iframeWakeLock = new WakeLock("screen");
+    await iframeWakeLock.request({ signal });
     parent.postMessage(iframeWakeLock.active, "*");
     break;
   case "RELEASED":
-    iframeRequest.cancel();
+    controller.abort();
     parent.postMessage(iframeWakeLock.active, "*");
     break;
   default:
@@ -49,7 +51,7 @@ function wait_for_message(iframe) {
 }
 
 promise_test(async t => {
-  const wakeLock = await navigator.getWakeLock("screen");
+  const wakeLock = await new WakeLock("screen");
   const iframe = await load_iframe();
   const eventWatcher = new EventWatcher(t, wakeLock, "activechange");
 
diff --git a/tests/wpt/web-platform-tests/wake-lock/wakelock-type.https.html b/tests/wpt/web-platform-tests/wake-lock/wakelock-type.https.html
index 2f9e1242614..df7a68a040b 100644
--- a/tests/wpt/web-platform-tests/wake-lock/wakelock-type.https.html
+++ b/tests/wpt/web-platform-tests/wake-lock/wakelock-type.https.html
@@ -7,22 +7,32 @@
 
 <script>
 
-promise_test(async t => {
-  const wakeLock = await navigator.getWakeLock("screen");
+test(() => {
+  const wakeLock = new WakeLock("screen");
   assert_equals(wakeLock.type, "screen");
 }, "Test that wakeLock.type is 'screen' when screen wake lock is invoked");
 
-promise_test(async t => {
-  const wakeLock = await navigator.getWakeLock("system");
+test(() => {
+  const wakeLock = new WakeLock("system");
   assert_equals(wakeLock.type, "system");
 }, "Test that wakeLock.type is 'system' when system wake lock is invoked");
 
-promise_test(t => {
-  return promise_rejects(t, new TypeError(), navigator.getWakeLock());
+test(() => {
+  assert_throws(new TypeError(), () => new WakeLock());
 }, "'TypeError' is thrown when set an empty wake lock type");
 
-promise_test(t => {
-  return promise_rejects(t, new TypeError(), navigator.getWakeLock("unsupported"));
-}, "'TypeError' is thrown when set an unsupported wake lock type");
+test(() => {
+  const invalidTypes = [
+    "invalid",
+    null,
+    123,
+    {},
+    "",
+    true
+  ];
+  invalidTypes.map(invalidType => {
+    assert_throws(new TypeError(), () => new WakeLock(invalidType));
+  })
+}, "'TypeError' is thrown when set an invalid wake lock type");
 
 </script>
diff --git a/tests/wpt/web-platform-tests/wake-lock/wakelockrequest-is-independent.https.html b/tests/wpt/web-platform-tests/wake-lock/wakelockrequest-is-independent.https.html
deleted file mode 100644
index a113b004fe2..00000000000
--- a/tests/wpt/web-platform-tests/wake-lock/wakelockrequest-is-independent.https.html
+++ /dev/null
@@ -1,15 +0,0 @@
-<!DOCTYPE html>
-<meta charset="utf-8">
-<title>WakeLockRequest object is independent</title>
-<link rel="help" href="https://w3c.github.io/wake-lock/">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script>
-promise_test(async t => {
-  const wakeLock1 = await navigator.getWakeLock("screen");
-  const wakeLock2 = await navigator.getWakeLock("screen");
-  const request1 = wakeLock1.createRequest();
-  const request2 = wakeLock2.createRequest();
-  assert_not_equals(request1, request2);
-}, "Test that the WakeLockRequest object is independent.");
-</script>
diff --git a/tests/wpt/web-platform-tests/wasm/webapi/instantiateStreaming.any.js b/tests/wpt/web-platform-tests/wasm/webapi/instantiateStreaming.any.js
index 224b0a3d0b7..daec185484f 100644
--- a/tests/wpt/web-platform-tests/wasm/webapi/instantiateStreaming.any.js
+++ b/tests/wpt/web-platform-tests/wasm/webapi/instantiateStreaming.any.js
@@ -18,3 +18,33 @@ for (const [name, fn] of instanceTestFactory) {
     verify(result.instance);
   }, name);
 }
+
+promise_test(async () => {
+  const builder = new WasmModuleBuilder();
+  builder.addImportedGlobal("module", "global", kWasmI32);
+  const buffer = builder.toBuffer();
+  const response = new Response(buffer, { "headers": { "Content-Type": "application/wasm" } });
+  const order = [];
+
+  const imports = {
+    get module() {
+      order.push("module getter");
+      return {
+        get global() {
+          order.push("global getter");
+          return 0;
+        },
+      }
+    },
+  };
+
+  const expected = [
+    "module getter",
+    "global getter",
+  ];
+  const p = WebAssembly.instantiateStreaming(response, imports);
+  assert_array_equals(order, []);
+  const result = await p;
+  assert_WebAssemblyInstantiatedSource(result, {});
+  assert_array_equals(order, expected);
+}, "Synchronous options handling");
diff --git a/tests/wpt/web-platform-tests/web-nfc/resources/nfc_help.js b/tests/wpt/web-platform-tests/web-nfc/resources/nfc_help.js
index 52d2710fd81..dd336ef3af5 100644
--- a/tests/wpt/web-platform-tests/web-nfc/resources/nfc_help.js
+++ b/tests/wpt/web-platform-tests/web-nfc/resources/nfc_help.js
@@ -70,7 +70,7 @@ function assertWebNDEFMessagesEqual(a, b) {
 function testNDEFMessage(pushedMessage, readOptions, desc) {
   promise_test(async t => {
     const writer = new NFCWriter();
-    const reader = new NFCReader();
+    const reader = new NFCReader(readOptions);
     await writer.push(pushedMessage);
     const readerWatcher = new EventWatcher(t, reader, ["reading", "error"]);
     reader.start();
diff --git a/tests/wpt/web-platform-tests/webrtc/RTCPeerConnection-setRemoteDescription-tracks.https.html b/tests/wpt/web-platform-tests/webrtc/RTCPeerConnection-setRemoteDescription-tracks.https.html
index 4e9568f0bcd..59761c4c4bd 100644
--- a/tests/wpt/web-platform-tests/webrtc/RTCPeerConnection-setRemoteDescription-tracks.https.html
+++ b/tests/wpt/web-platform-tests/webrtc/RTCPeerConnection-setRemoteDescription-tracks.https.html
@@ -27,8 +27,6 @@
     t.add_cleanup(() => localStream.getTracks().forEach(track => track.stop()));
     caller.addTrack(localStream.getTracks()[0]);
     const ontrackPromise = addEventListenerPromise(t, callee, 'track', e => {
-      assert_equals(e.track.id, localStream.getTracks()[0].id,
-                    'Local and remote track IDs match.');
       assert_equals(e.streams.length, 0, 'No remote stream created.');
     });
     await exchangeOffer(caller, callee);
@@ -45,8 +43,6 @@
     t.add_cleanup(() => localStream.getTracks().forEach(track => track.stop()));
     caller.addTrack(localStream.getTracks()[0], localStream);
     const ontrackPromise = addEventListenerPromise(t, callee, 'track', e => {
-      assert_equals(e.track.id, localStream.getTracks()[0].id,
-                    'Local and remote track IDs match.');
       assert_equals(e.streams.length, 1, 'Created a single remote stream.');
       assert_equals(e.streams[0].id, localStream.id,
                     'Local and remote stream IDs match.');
@@ -96,18 +92,12 @@
     });
     await exchangeOffer(caller, callee);
     let firstTrackEvent = await ontrackEventResolvers[0];
-    assert_equals(firstTrackEvent.track.id,
-                  localStreams[0].getTracks()[0].id,
-                  'First ontrack\'s track ID matches first local track.');
     assert_equals(firstTrackEvent.streams.length, 1,
                   'First ontrack fires with a single stream.');
     assert_equals(firstTrackEvent.streams[0].id,
                   localStreams[0].id,
                   'First ontrack\'s stream ID matches local stream.');
     let secondTrackEvent = await ontrackEventResolvers[1];
-    assert_equals(secondTrackEvent.track.id,
-                  localStreams[1].getTracks()[0].id,
-                  'Second ontrack\'s track ID matches second local track.');
     assert_equals(secondTrackEvent.streams.length, 1,
                   'Second ontrack fires with a single stream.');
     assert_equals(secondTrackEvent.streams[0].id,
@@ -145,17 +135,16 @@
     exchangeIceCandidates(caller, callee);
     await exchangeOfferAnswer(caller, callee);
     assert_equals(remoteStreams.length, 1, 'One remote stream created.');
-    assert_equals(remoteStreams[0].getTracks()[0].id,
-                  localStreams[0].getTracks()[0].id,
-                  'First local and remote tracks have the same ID.');
-    const onaddtrackPromise =
-        addEventListenerPromise(t, remoteStreams[0], 'addtrack', e => {
-      assert_equals(e.track.id, localStreams[1].getTracks()[0].id,
-                    'Second local and remote tracks have the same ID.');
-    });
+    assert_equals(remoteStreams[0].id, localStreams[0].id,
+                  'First local and remote streams have the same ID.');
+    const firstRemoteTrack = remoteStreams[0].getTracks()[0];
+    const onaddtrackPromise = addEventListenerPromise(t, remoteStreams[0], 'addtrack');
     caller.addTrack(localStreams[1].getTracks()[0], localStreams[0]);
     await exchangeOffer(caller, callee);
-    await onaddtrackPromise;
+    const e = await onaddtrackPromise;
+    assert_equals(remoteStreams[0].getTracks().length, 2, 'stream has two tracks');
+    assert_not_equals(e.track.id, firstRemoteTrack.id,
+                      'addtrack event has a new track');
     assert_equals(remoteStreams.length, 1, 'Still a single remote stream.');
   }, 'addTrack() for an existing stream makes stream.onaddtrack fire.');
 
@@ -206,8 +195,6 @@
     caller.addTrack(localStreams[0].getTracks()[0],
                     localStreams[0], localStreams[1]);
     const ontrackPromise = addEventListenerPromise(t, callee, 'track', e => {
-      assert_equals(e.track.id, localStreams[0].getTracks()[0].id,
-                    'Local and remote track IDs match.');
       assert_equals(e.streams.length, 2, 'Two remote stream created.');
       assert_array_equals(e.streams[0].getTracks(), [e.track],
                           'First remote stream == [remote track].');
diff --git a/tests/wpt/web-platform-tests/webrtc/RTCRtpTransceiver.https.html b/tests/wpt/web-platform-tests/webrtc/RTCRtpTransceiver.https.html
index 8004fec9f08..b5f3c55ee58 100644
--- a/tests/wpt/web-platform-tests/webrtc/RTCRtpTransceiver.https.html
+++ b/tests/wpt/web-platform-tests/webrtc/RTCRtpTransceiver.https.html
@@ -543,7 +543,7 @@
     const stream = await getNoiseStream({audio: true});
     t.add_cleanup(() => stopTracks(stream));
     const track = stream.getAudioTracks()[0];
-    pc2.getTransceivers()[0].sender.replaceTrack(track);
+    await pc2.getTransceivers()[0].sender.replaceTrack(track);
 
     const offer = await pc1.createOffer();
     const trackEvents = await setRemoteDescriptionReturnTrackEvents(pc2, offer);
@@ -630,7 +630,7 @@
     t.add_cleanup(() => stopTracks(stream));
     const track = stream.getAudioTracks()[0];
     pc2.addTrack(track, stream);
-    pc2.getTransceivers()[0].sender.replaceTrack(null);
+    await pc2.getTransceivers()[0].sender.replaceTrack(null);
 
     const offer = await pc1.createOffer();
     const trackEvents = await setRemoteDescriptionReturnTrackEvents(pc2, offer);
diff --git a/tests/wpt/web-platform-tests/xhr/resources/auth10/auth.py b/tests/wpt/web-platform-tests/xhr/resources/auth10/auth.py
new file mode 100644
index 00000000000..8b6682686c8
--- /dev/null
+++ b/tests/wpt/web-platform-tests/xhr/resources/auth10/auth.py
@@ -0,0 +1,10 @@
+import imp
+import os
+
+here = os.path.split(os.path.abspath(__file__))[0]
+
+def main(request, response):
+    auth = imp.load_source("", os.path.join(here,
+                                            "..",
+                                            "authentication.py"))
+    return auth.main(request, response)
diff --git a/tests/wpt/web-platform-tests/xhr/resources/auth11/auth.py b/tests/wpt/web-platform-tests/xhr/resources/auth11/auth.py
new file mode 100644
index 00000000000..8b6682686c8
--- /dev/null
+++ b/tests/wpt/web-platform-tests/xhr/resources/auth11/auth.py
@@ -0,0 +1,10 @@
+import imp
+import os
+
+here = os.path.split(os.path.abspath(__file__))[0]
+
+def main(request, response):
+    auth = imp.load_source("", os.path.join(here,
+                                            "..",
+                                            "authentication.py"))
+    return auth.main(request, response)
diff --git a/tests/wpt/web-platform-tests/xhr/send-authentication-basic-cors-not-enabled.htm b/tests/wpt/web-platform-tests/xhr/send-authentication-basic-cors-not-enabled.htm
index 070b2ba3212..68ad5e95ed8 100644
--- a/tests/wpt/web-platform-tests/xhr/send-authentication-basic-cors-not-enabled.htm
+++ b/tests/wpt/web-platform-tests/xhr/send-authentication-basic-cors-not-enabled.htm
@@ -16,7 +16,7 @@
           urlstart = 'www1.'+location.host + location.pathname.replace(/\/[^\/]*$/, '/')
         client.withCredentials = true
         user = token()
-        client.open("GET", location.protocol+'//'+urlstart + "resources/auth1/auth.py", false, user, 'pass')
+        client.open("GET", location.protocol+'//'+urlstart + "resources/auth10/auth.py", false, user, 'pass')
         client.setRequestHeader("x-user", user)
         assert_throws("NetworkError", function(){ client.send(null) })
         assert_equals(client.responseText, '')
diff --git a/tests/wpt/web-platform-tests/xhr/send-authentication-basic-repeat-no-args.htm b/tests/wpt/web-platform-tests/xhr/send-authentication-basic-repeat-no-args.htm
index 464d69cf789..38f1b20700a 100644
--- a/tests/wpt/web-platform-tests/xhr/send-authentication-basic-repeat-no-args.htm
+++ b/tests/wpt/web-platform-tests/xhr/send-authentication-basic-repeat-no-args.htm
@@ -15,12 +15,12 @@
         var client = new XMLHttpRequest(),
           urlstart = location.host + location.pathname.replace(/\/[^\/]*$/, '/'),
           user = token()
-        client.open("GET", location.protocol+'//'+urlstart + "resources/auth1/auth.py", false, user, 'pass')
+        client.open("GET", location.protocol+'//'+urlstart + "resources/auth11/auth.py", false, user, 'pass')
         client.setRequestHeader("x-user", user)
         client.send(null)
         // Repeat request but *without* credentials in the open() call.
         // Is the UA supposed to cache credentials from above request and use them? Yes.
-        client.open("GET", location.protocol+'//'+urlstart + "resources/auth1/auth.py", false)
+        client.open("GET", location.protocol+'//'+urlstart + "resources/auth11/auth.py", false)
         client.setRequestHeader("x-user", user)
         client.send(null)
 
diff --git a/tests/wpt/webgl/meta/conformance/textures/misc/texture-upload-size.html.ini b/tests/wpt/webgl/meta/conformance/textures/misc/texture-upload-size.html.ini
index 007aed5868b..76ff0e820bc 100644
--- a/tests/wpt/webgl/meta/conformance/textures/misc/texture-upload-size.html.ini
+++ b/tests/wpt/webgl/meta/conformance/textures/misc/texture-upload-size.html.ini
@@ -23,3 +23,6 @@
   [WebGL test #180: could not create image (SVG)]
     expected: FAIL
 
+  [WebGL test #100: could not create image (SVG)]
+    expected: FAIL
+