From 0233eb3d3291b008604f6e360bd750a98ce368de Mon Sep 17 00:00:00 2001
From: WPT Sync Bot <josh+wptsync@joshmatthews.net>
Date: Mon, 26 Aug 2019 10:26:31 +0000
Subject: [PATCH] Update web-platform-tests to revision
 94a0b420301fc9d7da16097083ecdce927e22343

---
 .../url/url-in-tags-revoke.window.js.ini      |   2 +-
 .../FileAPI/url/url-with-fetch.any.js.ini     |   3 +
 tests/wpt/metadata/MANIFEST.json              | 286 +++++++++++++++++-
 .../mix-blend-mode-animation.html.ini         |   2 -
 .../matchMedia-display-none-iframe.html.ini   |   2 +
 .../scroll-behavior-smooth.html.ini           |   6 +
 .../fetch/content-type/response.window.js.ini |  23 +-
 .../fetch/content-type/script.window.js.ini   |   3 +
 .../nosniff/parsing-nosniff.window.js.ini     |   3 +
 .../traverse_the_history_5.html.ini           |   4 +
 ...creating_browsing_context_test_01.html.ini |   4 -
 ...s-negative-innerwidth-innerheight.html.ini |  19 --
 ...features-negative-screenx-screeny.html.ini |  19 --
 ...en-features-negative-width-height.html.ini |  19 --
 .../open-features-non-integer-height.html.ini |  34 +--
 ...-features-non-integer-innerheight.html.ini |  28 +-
 ...n-features-non-integer-innerwidth.html.ini |  28 +-
 .../open-features-non-integer-left.html.ini   |  28 +-
 ...open-features-non-integer-screenx.html.ini |  28 +-
 ...open-features-non-integer-screeny.html.ini |  28 +-
 .../open-features-non-integer-top.html.ini    |  28 +-
 .../open-features-non-integer-width.html.ini  |  34 +--
 .../window-failure.https.html.ini             |   5 +
 .../non-active-document.html.ini              |  10 +
 .../null-image-source.html.ini                |   7 -
 .../the-details-element/toggleEvent.html.ini  |   7 +
 .../promise-rejection-events.html.ini         |   4 -
 .../stream-tentative/close.any.js.ini         | 181 +++++++++++
 .../stream-tentative/constructor.any.js.ini   |  61 ++++
 .../Worker/Worker-constructor.html.ini        |   2 +
 .../grid-template-columns-invalid.html        |  30 ++
 .../parsing/grid-template-columns-valid.html  |  79 +++++
 .../parsing/grid-template-rows-invalid.html   |  30 ++
 .../parsing/grid-template-rows-valid.html     |  79 +++++
 .../data/insert-list-items-in-table-cells.js  |  20 ++
 .../resources/iframe-failure.html             |   3 +
 .../resources/iframe-failure.html.headers     |   2 +
 .../window-failure.https.html                 |  15 +
 .../window-failure.https.html.headers         |   2 +
 .../css-styling/display-contents.html         |  36 +++
 .../not-participating-to-parent-layout.html   |   1 +
 .../padding-border-margin/border-002.html     |   3 +
 .../padding-border-margin/margin-002.html     |   4 +
 .../padding-border-margin/padding-002.html    |   3 +
 .../clipboard-event-handlers.tentative.html   |  25 +-
 .../css-inline-style-interface.tentative.html |   5 +-
 ...-foreign-element-interfaces.tentative.html |   5 +-
 .../math-global-event-handlers.tentative.html |  15 +-
 .../mathml/support/box-comparison.js          |  30 +-
 .../handlers/delayed-passive-close_wsh.py     |  27 ++
 .../websockets/stream-tentative/README.md     |   9 +
 .../websockets/stream-tentative/close.any.js  | 184 +++++++++++
 .../stream-tentative/constructor.any.js       |  66 ++++
 .../resources/url-constants.js                |  11 +
 54 files changed, 1279 insertions(+), 313 deletions(-)
 delete mode 100644 tests/wpt/metadata/css/compositing/mix-blend-mode/mix-blend-mode-animation.html.ini
 create mode 100644 tests/wpt/metadata/css/cssom-view/matchMedia-display-none-iframe.html.ini
 create mode 100644 tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_5.html.ini
 delete mode 100644 tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/creating_browsing_context_test_01.html.ini
 create mode 100644 tests/wpt/metadata/html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/window-failure.https.html.ini
 create mode 100644 tests/wpt/metadata/html/semantics/embedded-content/the-img-element/non-active-document.html.ini
 delete mode 100644 tests/wpt/metadata/html/semantics/embedded-content/the-img-element/null-image-source.html.ini
 create mode 100644 tests/wpt/metadata/html/semantics/interactive-elements/the-details-element/toggleEvent.html.ini
 create mode 100644 tests/wpt/metadata/websockets/stream-tentative/close.any.js.ini
 create mode 100644 tests/wpt/metadata/websockets/stream-tentative/constructor.any.js.ini
 create mode 100644 tests/wpt/metadata/workers/constructors/Worker/Worker-constructor.html.ini
 create mode 100644 tests/wpt/web-platform-tests/css/css-grid/parsing/grid-template-columns-invalid.html
 create mode 100644 tests/wpt/web-platform-tests/css/css-grid/parsing/grid-template-columns-valid.html
 create mode 100644 tests/wpt/web-platform-tests/css/css-grid/parsing/grid-template-rows-invalid.html
 create mode 100644 tests/wpt/web-platform-tests/css/css-grid/parsing/grid-template-rows-valid.html
 create mode 100644 tests/wpt/web-platform-tests/html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/resources/iframe-failure.html
 create mode 100644 tests/wpt/web-platform-tests/html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/resources/iframe-failure.html.headers
 create mode 100644 tests/wpt/web-platform-tests/html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/window-failure.https.html
 create mode 100644 tests/wpt/web-platform-tests/html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/window-failure.https.html.headers
 create mode 100644 tests/wpt/web-platform-tests/mathml/relations/css-styling/display-contents.html
 create mode 100755 tests/wpt/web-platform-tests/websockets/handlers/delayed-passive-close_wsh.py
 create mode 100644 tests/wpt/web-platform-tests/websockets/stream-tentative/README.md
 create mode 100644 tests/wpt/web-platform-tests/websockets/stream-tentative/close.any.js
 create mode 100644 tests/wpt/web-platform-tests/websockets/stream-tentative/constructor.any.js
 create mode 100644 tests/wpt/web-platform-tests/websockets/stream-tentative/resources/url-constants.js

diff --git a/tests/wpt/metadata/FileAPI/url/url-in-tags-revoke.window.js.ini b/tests/wpt/metadata/FileAPI/url/url-in-tags-revoke.window.js.ini
index a9e46713244..76b398963ae 100644
--- a/tests/wpt/metadata/FileAPI/url/url-in-tags-revoke.window.js.ini
+++ b/tests/wpt/metadata/FileAPI/url/url-in-tags-revoke.window.js.ini
@@ -7,7 +7,7 @@
     expected: FAIL
 
   [Opening a blob URL in a new window immediately before revoking it works.]
-    expected: TIMEOUT
+    expected: FAIL
 
   [Opening a blob URL in a noopener about:blank window immediately before revoking it works.]
     expected: FAIL
diff --git a/tests/wpt/metadata/FileAPI/url/url-with-fetch.any.js.ini b/tests/wpt/metadata/FileAPI/url/url-with-fetch.any.js.ini
index 947e223fb28..3b874fc1748 100644
--- a/tests/wpt/metadata/FileAPI/url/url-with-fetch.any.js.ini
+++ b/tests/wpt/metadata/FileAPI/url/url-with-fetch.any.js.ini
@@ -34,3 +34,6 @@
   [Revoke blob URL after creating Request, will fetch]
     expected: FAIL
 
+  [Revoke blob URL after calling fetch, fetch should succeed]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/MANIFEST.json b/tests/wpt/metadata/MANIFEST.json
index ff0f28e988e..b83f193fa3a 100644
--- a/tests/wpt/metadata/MANIFEST.json
+++ b/tests/wpt/metadata/MANIFEST.json
@@ -272285,6 +272285,12 @@
    "html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/resources/broadcastchannel-worker.js.headers": [
     []
    ],
+   "html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/resources/iframe-failure.html": [
+    []
+   ],
+   "html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/resources/iframe-failure.html.headers": [
+    []
+   ],
    "html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/resources/incrementer-iframe-domain.sub.html": [
     []
    ],
@@ -272375,6 +272381,9 @@
    "html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/window-domain-success.https.sub.html.headers": [
     []
    ],
+   "html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/window-failure.https.html.headers": [
+    []
+   ],
    "html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/window-iframe-messagechannel-success.https.html.headers": [
     []
    ],
@@ -288476,6 +288485,9 @@
    "websockets/handlers/basic_auth_wsh.py": [
     []
    ],
+   "websockets/handlers/delayed-passive-close_wsh.py": [
+    []
+   ],
    "websockets/handlers/echo-cookie_wsh.py": [
     []
    ],
@@ -288557,6 +288569,12 @@
    "websockets/security/check.py": [
     []
    ],
+   "websockets/stream-tentative/README.md": [
+    []
+   ],
+   "websockets/stream-tentative/resources/url-constants.js": [
+    []
+   ],
    "websockets/unload-a-document/001-1.html": [
     []
    ],
@@ -319712,6 +319730,30 @@
      {}
     ]
    ],
+   "css/css-grid/parsing/grid-template-columns-invalid.html": [
+    [
+     "css/css-grid/parsing/grid-template-columns-invalid.html",
+     {}
+    ]
+   ],
+   "css/css-grid/parsing/grid-template-columns-valid.html": [
+    [
+     "css/css-grid/parsing/grid-template-columns-valid.html",
+     {}
+    ]
+   ],
+   "css/css-grid/parsing/grid-template-rows-invalid.html": [
+    [
+     "css/css-grid/parsing/grid-template-rows-invalid.html",
+     {}
+    ]
+   ],
+   "css/css-grid/parsing/grid-template-rows-valid.html": [
+    [
+     "css/css-grid/parsing/grid-template-rows-valid.html",
+     {}
+    ]
+   ],
    "css/css-grid/placement/grid-auto-placement-implicit-tracks-001.html": [
     [
      "css/css-grid/placement/grid-auto-placement-implicit-tracks-001.html",
@@ -353684,6 +353726,12 @@
      {}
     ]
    ],
+   "html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/window-failure.https.html": [
+    [
+     "html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/window-failure.https.html",
+     {}
+    ]
+   ],
    "html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/window-iframe-messagechannel-success.https.html": [
     [
      "html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/window-iframe-messagechannel-success.https.html",
@@ -367085,6 +367133,12 @@
      {}
     ]
    ],
+   "mathml/relations/css-styling/display-contents.html": [
+    [
+     "mathml/relations/css-styling/display-contents.html",
+     {}
+    ]
+   ],
    "mathml/relations/css-styling/displaystyle-1.html": [
     [
      "mathml/relations/css-styling/displaystyle-1.html",
@@ -417247,6 +417301,162 @@
      {}
     ]
    ],
+   "websockets/stream-tentative/close.any.js": [
+    [
+     "websockets/stream-tentative/close.any.html",
+     {
+      "script_metadata": [
+       [
+        "script",
+        "../websocket.sub.js"
+       ],
+       [
+        "script",
+        "resources/url-constants.js"
+       ],
+       [
+        "global",
+        "window,worker"
+       ]
+      ]
+     }
+    ],
+    [
+     "websockets/stream-tentative/close.any.serviceworker.html",
+     {
+      "script_metadata": [
+       [
+        "script",
+        "../websocket.sub.js"
+       ],
+       [
+        "script",
+        "resources/url-constants.js"
+       ],
+       [
+        "global",
+        "window,worker"
+       ]
+      ]
+     }
+    ],
+    [
+     "websockets/stream-tentative/close.any.sharedworker.html",
+     {
+      "script_metadata": [
+       [
+        "script",
+        "../websocket.sub.js"
+       ],
+       [
+        "script",
+        "resources/url-constants.js"
+       ],
+       [
+        "global",
+        "window,worker"
+       ]
+      ]
+     }
+    ],
+    [
+     "websockets/stream-tentative/close.any.worker.html",
+     {
+      "script_metadata": [
+       [
+        "script",
+        "../websocket.sub.js"
+       ],
+       [
+        "script",
+        "resources/url-constants.js"
+       ],
+       [
+        "global",
+        "window,worker"
+       ]
+      ]
+     }
+    ]
+   ],
+   "websockets/stream-tentative/constructor.any.js": [
+    [
+     "websockets/stream-tentative/constructor.any.html",
+     {
+      "script_metadata": [
+       [
+        "script",
+        "../websocket.sub.js"
+       ],
+       [
+        "script",
+        "resources/url-constants.js"
+       ],
+       [
+        "global",
+        "window,worker"
+       ]
+      ]
+     }
+    ],
+    [
+     "websockets/stream-tentative/constructor.any.serviceworker.html",
+     {
+      "script_metadata": [
+       [
+        "script",
+        "../websocket.sub.js"
+       ],
+       [
+        "script",
+        "resources/url-constants.js"
+       ],
+       [
+        "global",
+        "window,worker"
+       ]
+      ]
+     }
+    ],
+    [
+     "websockets/stream-tentative/constructor.any.sharedworker.html",
+     {
+      "script_metadata": [
+       [
+        "script",
+        "../websocket.sub.js"
+       ],
+       [
+        "script",
+        "resources/url-constants.js"
+       ],
+       [
+        "global",
+        "window,worker"
+       ]
+      ]
+     }
+    ],
+    [
+     "websockets/stream-tentative/constructor.any.worker.html",
+     {
+      "script_metadata": [
+       [
+        "script",
+        "../websocket.sub.js"
+       ],
+       [
+        "script",
+        "resources/url-constants.js"
+       ],
+       [
+        "global",
+        "window,worker"
+       ]
+      ]
+     }
+    ]
+   ],
    "websockets/unload-a-document/001.html": [
     [
      "websockets/unload-a-document/001.html",
@@ -563246,6 +563456,22 @@
    "9c9bd47ec894ccc0e389287120082fb4bf5c9905",
    "testharness"
   ],
+  "css/css-grid/parsing/grid-template-columns-invalid.html": [
+   "9d7aac48721a763ab778e22523b16b3f99b3f16a",
+   "testharness"
+  ],
+  "css/css-grid/parsing/grid-template-columns-valid.html": [
+   "85ac76a999aab5adf628a8e38f626fcae299d12f",
+   "testharness"
+  ],
+  "css/css-grid/parsing/grid-template-rows-invalid.html": [
+   "8a0fe9ddfa23e12985c99c1fe9196eebfc04c8cc",
+   "testharness"
+  ],
+  "css/css-grid/parsing/grid-template-rows-valid.html": [
+   "ec8d64f79bacc1d7831e415768c2a76bf05607e0",
+   "testharness"
+  ],
   "css/css-grid/placement/grid-auto-placement-implicit-tracks-001.html": [
    "546336a6ce8208d7c30afd66e20fbe33040cbd7c",
    "testharness"
@@ -619959,7 +620185,7 @@
    "support"
   ],
   "editing/data/insert-list-items-in-table-cells.js": [
-   "6a4d3985a570dd4acbf182c48d5acce2f2c1a0e1",
+   "9324d5b55ac2ad969593296dc907c97de8d3c7e8",
    "support"
   ],
   "editing/data/inserthorizontalrule.js": [
@@ -635042,6 +635268,14 @@
    "6604450991a122e3e241e40b1b9e0516c525389d",
    "support"
   ],
+  "html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/resources/iframe-failure.html": [
+   "2c33dba79a2fb9e6a81fc9ee5805b378e826f725",
+   "support"
+  ],
+  "html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/resources/iframe-failure.html.headers": [
+   "1528bf05e6368b00600b23c23042bf0d61985917",
+   "support"
+  ],
   "html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/resources/incrementer-iframe-domain.sub.html": [
    "a6dd70177584c9115c24beb281e7681110c07624",
    "support"
@@ -635178,6 +635412,14 @@
    "63b60e490f47f4db77d33d7a4ca2f5b9a4181de8",
    "support"
   ],
+  "html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/window-failure.https.html": [
+   "203a9f637fe61a2367fd4b58523af601401991be",
+   "testharness"
+  ],
+  "html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/window-failure.https.html.headers": [
+   "63b60e490f47f4db77d33d7a4ca2f5b9a4181de8",
+   "support"
+  ],
   "html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/window-iframe-messagechannel-success.https.html": [
    "98145310f610f0ca88af938872e9ea2103de600c",
    "testharness"
@@ -649418,6 +649660,10 @@
    "f32a15ec01ac808d2e32ecb8cb232c12a5e0aa19",
    "reftest"
   ],
+  "mathml/relations/css-styling/display-contents.html": [
+   "aeaa28da908816ad39619d9a47bbb43a3116bbe9",
+   "testharness"
+  ],
   "mathml/relations/css-styling/displaystyle-011-ref.html": [
    "400c46a2456d0e1d4d48860e3ad557fa5d2990ee",
    "support"
@@ -649727,7 +649973,7 @@
    "reftest"
   ],
   "mathml/relations/css-styling/not-participating-to-parent-layout.html": [
-   "89389fc668234cc46bb58e33a099b2c04cc675b5",
+   "769449b97d4983efc19aa9c0999725cb5735c6dc",
    "testharness"
   ],
   "mathml/relations/css-styling/padding-border-margin/border-001.html": [
@@ -649735,7 +649981,7 @@
    "testharness"
   ],
   "mathml/relations/css-styling/padding-border-margin/border-002.html": [
-   "f78bc588c04cc3d7b7939a194b2b577bab8f1ae7",
+   "06a719de64071ce0c9ca388ccf98fc4c6559a983",
    "testharness"
   ],
   "mathml/relations/css-styling/padding-border-margin/margin-001.html": [
@@ -649743,7 +649989,7 @@
    "testharness"
   ],
   "mathml/relations/css-styling/padding-border-margin/margin-002.html": [
-   "69e1fd6b033c1a4be5e8f46bb699d08caf558eca",
+   "01c8f3e45f83e9f9ad5168de98dc60c63e213841",
    "testharness"
   ],
   "mathml/relations/css-styling/padding-border-margin/padding-001.html": [
@@ -649751,7 +649997,7 @@
    "testharness"
   ],
   "mathml/relations/css-styling/padding-border-margin/padding-002.html": [
-   "a2f167a34040e067e3f41db33034ecb891204d58",
+   "565dfc43b566b0a3c019437111ce21db7885c426",
    "testharness"
   ],
   "mathml/relations/css-styling/padding-border-margin/padding-border-margin-001-ref.html": [
@@ -649827,7 +650073,7 @@
    "testharness"
   ],
   "mathml/relations/html5-tree/clipboard-event-handlers.tentative.html": [
-   "d293b1500c77dd289381619d658ad5761316b9cf",
+   "0031004616886bc5933358d005d16d2299d52095",
    "testharness"
   ],
   "mathml/relations/html5-tree/color-attributes-1-ref.html": [
@@ -649839,7 +650085,7 @@
    "reftest"
   ],
   "mathml/relations/html5-tree/css-inline-style-interface.tentative.html": [
-   "708926413f2aff21c4972a3f0ab19c692b81bbc7",
+   "b82f98e28b70cbfbadf7f585c9a2c8a2612ba05f",
    "testharness"
   ],
   "mathml/relations/html5-tree/display-1.html": [
@@ -649875,7 +650121,7 @@
    "testharness"
   ],
   "mathml/relations/html5-tree/html-or-foreign-element-interfaces.tentative.html": [
-   "1fcaf6c40167a5eeb55dcc62de14e50224998994",
+   "bf4b99894da3251a394760f03d7b06b7e52b291f",
    "testharness"
   ],
   "mathml/relations/html5-tree/integration-point-1-ref.html": [
@@ -649907,7 +650153,7 @@
    "testharness"
   ],
   "mathml/relations/html5-tree/math-global-event-handlers.tentative.html": [
-   "92e18639dff0d10949143bba2c7c403e48fdbe1c",
+   "807a29ee315f2a0d4680b693bb9137a6cd50ca1c",
    "testharness"
   ],
   "mathml/relations/html5-tree/required-extensions-2-ref.html": [
@@ -649959,7 +650205,7 @@
    "support"
   ],
   "mathml/support/box-comparison.js": [
-   "c46808f7fee6f72ec9e7ffd4946239d9dcaad25b",
+   "a574b01706b5fecc232d62735ef7e89938594769",
    "support"
   ],
   "mathml/support/feature-detection.js": [
@@ -696502,6 +696748,10 @@
    "7ace8f4edb79e4d7dae94349ff256567a17c219b",
    "support"
   ],
+  "websockets/handlers/delayed-passive-close_wsh.py": [
+   "7d55b88ecc6db7fd9d3fb7a9722e030d926c807d",
+   "support"
+  ],
   "websockets/handlers/echo-cookie_wsh.py": [
    "367d03190cfef898b092663a34891c721216f823",
    "support"
@@ -696946,6 +697196,22 @@
    "f1414376dcf165ab1c7da18a6f5856796dfec2c2",
    "support"
   ],
+  "websockets/stream-tentative/README.md": [
+   "6c5158877417a3271ff0179449eace740cf157a1",
+   "support"
+  ],
+  "websockets/stream-tentative/close.any.js": [
+   "ddcdc2b2c8f62682f395551be1272b624876ce32",
+   "testharness"
+  ],
+  "websockets/stream-tentative/constructor.any.js": [
+   "12a24f25f2cc50c9437c7e59c4997774d023a101",
+   "testharness"
+  ],
+  "websockets/stream-tentative/resources/url-constants.js": [
+   "9bc77aa3264a157f3da9e37504febfe8563d40bb",
+   "support"
+  ],
   "websockets/unload-a-document/001-1.html": [
    "bd0c36686954938a1d2bf70918bc506da431e296",
    "support"
diff --git a/tests/wpt/metadata/css/compositing/mix-blend-mode/mix-blend-mode-animation.html.ini b/tests/wpt/metadata/css/compositing/mix-blend-mode/mix-blend-mode-animation.html.ini
deleted file mode 100644
index 5496474410b..00000000000
--- a/tests/wpt/metadata/css/compositing/mix-blend-mode/mix-blend-mode-animation.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[mix-blend-mode-animation.html]
-  expected: FAIL
diff --git a/tests/wpt/metadata/css/cssom-view/matchMedia-display-none-iframe.html.ini b/tests/wpt/metadata/css/cssom-view/matchMedia-display-none-iframe.html.ini
new file mode 100644
index 00000000000..e6e1f29e274
--- /dev/null
+++ b/tests/wpt/metadata/css/cssom-view/matchMedia-display-none-iframe.html.ini
@@ -0,0 +1,2 @@
+[matchMedia-display-none-iframe.html]
+  expected: ERROR
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 e1a609649d6..ee754ce4aa3 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
@@ -3,3 +3,9 @@
   [scroll-behavior: smooth on DIV element]
     expected: FAIL
 
+  [Smooth scrolling while doing history navigation.]
+    expected: FAIL
+
+  [Instant scrolling while doing history navigation.]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/fetch/content-type/response.window.js.ini b/tests/wpt/metadata/fetch/content-type/response.window.js.ini
index 802887f65df..d1b9fe23516 100644
--- a/tests/wpt/metadata/fetch/content-type/response.window.js.ini
+++ b/tests/wpt/metadata/fetch/content-type/response.window.js.ini
@@ -312,33 +312,24 @@
   [<iframe>: separate response Content-Type: */* text/html]
     expected: FAIL
 
-  [<iframe>: separate response Content-Type: text/plain */*]
-    expected: FAIL
-
   [<iframe>: combined response Content-Type: text/html;" \\" text/plain]
     expected: FAIL
 
-  [<iframe>: combined response Content-Type: text/html */*;charset=gbk]
-    expected: FAIL
-
-  [<iframe>: combined response Content-Type: text/html;x=" text/plain]
-    expected: FAIL
-
   [<iframe>: separate response Content-Type: text/html */*]
     expected: FAIL
 
   [<iframe>: separate response Content-Type: text/plain */*;charset=gbk]
     expected: FAIL
 
-  [<iframe>: combined response Content-Type: */* text/html]
-    expected: FAIL
-
-  [<iframe>: combined response Content-Type: text/html;charset=gbk text/plain text/html]
-    expected: FAIL
-
   [<iframe>: combined response Content-Type: text/html */*]
     expected: FAIL
 
-  [<iframe>: separate response Content-Type: text/html */*;charset=gbk]
+  [<iframe>: separate response Content-Type: text/html;" text/plain]
+    expected: FAIL
+
+  [<iframe>: separate response Content-Type: text/html;x=" text/plain]
+    expected: FAIL
+
+  [<iframe>: separate response Content-Type: text/html;" \\" text/plain]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/fetch/content-type/script.window.js.ini b/tests/wpt/metadata/fetch/content-type/script.window.js.ini
index d2df9b78483..279734168dc 100644
--- a/tests/wpt/metadata/fetch/content-type/script.window.js.ini
+++ b/tests/wpt/metadata/fetch/content-type/script.window.js.ini
@@ -56,3 +56,6 @@
   [separate text/javascript x/x]
     expected: FAIL
 
+  [separate text/javascript;charset=windows-1252  text/javascript]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini b/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini
index 87c807a49ff..b7052af5b5c 100644
--- a/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini
+++ b/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini
@@ -11,3 +11,6 @@
   [X-Content-Type-Options%3A%20nosniff%0C]
     expected: FAIL
 
+  [X-Content-Type-Options%3A%0D%0AX-Content-Type-Options%3A%20nosniff]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_5.html.ini b/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_5.html.ini
new file mode 100644
index 00000000000..dc2e45516de
--- /dev/null
+++ b/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_5.html.ini
@@ -0,0 +1,4 @@
+[traverse_the_history_5.html]
+  [Multiple history traversals, last would be aborted]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/creating_browsing_context_test_01.html.ini b/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/creating_browsing_context_test_01.html.ini
deleted file mode 100644
index 16fa2c5cfc1..00000000000
--- a/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/creating_browsing_context_test_01.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[creating_browsing_context_test_01.html]
-  [first argument: absolute url]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-negative-innerwidth-innerheight.html.ini b/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-negative-innerwidth-innerheight.html.ini
index e02f179ec25..bf50d59df41 100644
--- a/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-negative-innerwidth-innerheight.html.ini
+++ b/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-negative-innerwidth-innerheight.html.ini
@@ -1,24 +1,5 @@
 [open-features-negative-innerwidth-innerheight.html]
   type: testharness
-  expected: TIMEOUT
   [HTML: window.open `features`: negative values for legacy `innerwidth`, `innerheight`]
     expected: FAIL
 
-  [features "innerheight=-404.5" should NOT set "height=404"]
-    expected: TIMEOUT
-
-  [features "innerwidth=-404.5" should NOT set "width=404"]
-    expected: TIMEOUT
-
-  [features "innerwidth=-404" should NOT set "width=404"]
-    expected: TIMEOUT
-
-  [features "innerheight=-404e1" should NOT set "height=404"]
-    expected: TIMEOUT
-
-  [features "innerheight=-404" should NOT set "height=404"]
-    expected: TIMEOUT
-
-  [features "innerwidth=-404e1" should NOT set "width=404"]
-    expected: TIMEOUT
-
diff --git a/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-negative-screenx-screeny.html.ini b/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-negative-screenx-screeny.html.ini
index 23eefb8eaf9..e150c9d848f 100644
--- a/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-negative-screenx-screeny.html.ini
+++ b/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-negative-screenx-screeny.html.ini
@@ -1,24 +1,5 @@
 [open-features-negative-screenx-screeny.html]
   type: testharness
-  expected: TIMEOUT
   [HTML: window.open `features`: negative values for legacy `screenx`, `screeny`]
     expected: FAIL
 
-  [features "screenx=-204" should NOT set "left=204"]
-    expected: TIMEOUT
-
-  [features "screeny=-204" should NOT set "top=204"]
-    expected: TIMEOUT
-
-  [features "screeny=-204.5" should NOT set "top=204"]
-    expected: TIMEOUT
-
-  [features "screeny=-0" should NOT set "top=204"]
-    expected: TIMEOUT
-
-  [features "screenx=-0" should NOT set "left=204"]
-    expected: TIMEOUT
-
-  [features "screenx=-204.5" should NOT set "left=204"]
-    expected: TIMEOUT
-
diff --git a/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-negative-width-height.html.ini b/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-negative-width-height.html.ini
index 9027336b453..d1ed9088b2b 100644
--- a/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-negative-width-height.html.ini
+++ b/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-negative-width-height.html.ini
@@ -1,24 +1,5 @@
 [open-features-negative-width-height.html]
   type: testharness
-  expected: TIMEOUT
   [HTML: window.open `features`: negative values for `width`, `height`]
     expected: FAIL
 
-  [features "height=-404" should NOT set "height=404"]
-    expected: TIMEOUT
-
-  [features "height=-404e1" should NOT set "height=404"]
-    expected: TIMEOUT
-
-  [features "height=-404.5" should NOT set "height=404"]
-    expected: TIMEOUT
-
-  [features "width=-404" should NOT set "width=404"]
-    expected: TIMEOUT
-
-  [features "width=-404e1" should NOT set "width=404"]
-    expected: TIMEOUT
-
-  [features "width=-404.5" should NOT set "width=404"]
-    expected: TIMEOUT
-
diff --git a/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-non-integer-height.html.ini b/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-non-integer-height.html.ini
index 4e44584b123..a70e9dbad4d 100644
--- a/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-non-integer-height.html.ini
+++ b/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-non-integer-height.html.ini
@@ -1,48 +1,32 @@
 [open-features-non-integer-height.html]
   type: testharness
-  expected: TIMEOUT
   [HTML: window.open `features`: non-integer values for feature `height`]
     expected: FAIL
 
   [features "height=405*3" should set "height=405"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "height=405.32" should set "height=405"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "height=405e1" should set "height=405"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "height=405/5" should set "height=405"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "height=405^4" should set "height=405"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "height=405.5" should set "height=405"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "height=405e-1" should set "height=405"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "height=405  " should set "height=405"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "height=405LLl" should set "height=405"]
-    expected: TIMEOUT
-
-  [features "height=/404" should NOT set "height=404"]
-    expected: TIMEOUT
-
-  [top=0,left=0,width=401,: absence of feature "height" should be treated same as "height=0"]
-    expected: TIMEOUT
-
-  [top=0,left=0: absence of feature "height" should be treated same as "height=0"]
-    expected: TIMEOUT
-
-  [features "height=_404" should NOT set "height=404"]
-    expected: TIMEOUT
-
-  [features "height=L404" should NOT set "height=404"]
-    expected: TIMEOUT
+    expected: FAIL
 
diff --git a/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-non-integer-innerheight.html.ini b/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-non-integer-innerheight.html.ini
index fcaeae5336d..779531b4a98 100644
--- a/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-non-integer-innerheight.html.ini
+++ b/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-non-integer-innerheight.html.ini
@@ -1,42 +1,32 @@
 [open-features-non-integer-innerheight.html]
   type: testharness
-  expected: TIMEOUT
   [HTML: window.open `features`: non-integer values for legacy feature `innerheight`]
     expected: FAIL
 
   [features "innerheight=405e-1" should set "height=405"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "innerheight=405LLl" should set "height=405"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "innerheight=405^4" should set "height=405"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "innerheight=405e1" should set "height=405"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "innerheight=405  " should set "height=405"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "innerheight=405/5" should set "height=405"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "innerheight=405.32" should set "height=405"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "innerheight=405.5" should set "height=405"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "innerheight=405*3" should set "height=405"]
-    expected: TIMEOUT
-
-  [features "innerheight=_404" should NOT set "height=404"]
-    expected: TIMEOUT
-
-  [features "innerheight=L404" should NOT set "height=404"]
-    expected: TIMEOUT
-
-  [features "innerheight=/404" should NOT set "height=404"]
-    expected: TIMEOUT
+    expected: FAIL
 
diff --git a/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-non-integer-innerwidth.html.ini b/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-non-integer-innerwidth.html.ini
index 42327fedd27..7a1b258d52e 100644
--- a/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-non-integer-innerwidth.html.ini
+++ b/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-non-integer-innerwidth.html.ini
@@ -1,42 +1,32 @@
 [open-features-non-integer-innerwidth.html]
   type: testharness
-  expected: TIMEOUT
   [HTML: window.open `features`: non-integer values for legacy feature `innerwidth`]
     expected: FAIL
 
   [features "innerwidth=405e-1" should set "width=405"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "innerwidth=405*3" should set "width=405"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "innerwidth=405.5" should set "width=405"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "innerwidth=405e1" should set "width=405"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "innerwidth=405.32" should set "width=405"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "innerwidth=405  " should set "width=405"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "innerwidth=405LLl" should set "width=405"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "innerwidth=405/5" should set "width=405"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "innerwidth=405^4" should set "width=405"]
-    expected: TIMEOUT
-
-  [features "innerwidth=/404" should NOT set "width=404"]
-    expected: TIMEOUT
-
-  [features "innerwidth=_404" should NOT set "width=404"]
-    expected: TIMEOUT
-
-  [features "innerwidth=L404" should NOT set "width=404"]
-    expected: TIMEOUT
+    expected: FAIL
 
diff --git a/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-non-integer-left.html.ini b/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-non-integer-left.html.ini
index a8e4fe06618..caba4124f0b 100644
--- a/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-non-integer-left.html.ini
+++ b/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-non-integer-left.html.ini
@@ -1,42 +1,32 @@
 [open-features-non-integer-left.html]
   type: testharness
-  expected: TIMEOUT
   [HTML: window.open `features`: non-integer values for feature `left`]
     expected: FAIL
 
   [features "left=105e1" should set "left=105"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "left=105  " should set "left=105"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "left=105/5" should set "left=105"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "left=105e-1" should set "left=105"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "left=105^4" should set "left=105"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "left=105LLl" should set "left=105"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "left=105.32" should set "left=105"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "left=105*3" should set "left=105"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "left=105.5" should set "left=105"]
-    expected: TIMEOUT
-
-  [features "left=L104" should NOT set "left=104"]
-    expected: TIMEOUT
-
-  [features "left=/104" should NOT set "left=104"]
-    expected: TIMEOUT
-
-  [features "left=_104" should NOT set "left=104"]
-    expected: TIMEOUT
+    expected: FAIL
 
diff --git a/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-non-integer-screenx.html.ini b/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-non-integer-screenx.html.ini
index 64a08faf0e6..9ace8a4cbdb 100644
--- a/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-non-integer-screenx.html.ini
+++ b/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-non-integer-screenx.html.ini
@@ -1,42 +1,32 @@
 [open-features-non-integer-screenx.html]
   type: testharness
-  expected: TIMEOUT
   [HTML: window.open `features`: non-integer values for legacy feature `screenx`]
     expected: FAIL
 
   [features "screenx=105.5" should set "left=105"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "screenx=105e1" should set "left=105"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "screenx=105  " should set "left=105"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "screenx=105*3" should set "left=105"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "screenx=105e-1" should set "left=105"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "screenx=105^4" should set "left=105"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "screenx=105LLl" should set "left=105"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "screenx=105/5" should set "left=105"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "screenx=105.32" should set "left=105"]
-    expected: TIMEOUT
-
-  [features "screenx=_104" should NOT set "left=104"]
-    expected: TIMEOUT
-
-  [features "screenx=L104" should NOT set "left=104"]
-    expected: TIMEOUT
-
-  [features "screenx=/104" should NOT set "left=104"]
-    expected: TIMEOUT
+    expected: FAIL
 
diff --git a/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-non-integer-screeny.html.ini b/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-non-integer-screeny.html.ini
index 4f22ef4ef29..a82bd0f981a 100644
--- a/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-non-integer-screeny.html.ini
+++ b/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-non-integer-screeny.html.ini
@@ -1,42 +1,32 @@
 [open-features-non-integer-screeny.html]
   type: testharness
-  expected: TIMEOUT
   [HTML: window.open `features`: non-integer values for legacy feature `screeny`]
     expected: FAIL
 
   [features "screeny=405^4" should set "height=405"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "screeny=405e-1" should set "height=405"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "screeny=405LLl" should set "height=405"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "screeny=405e1" should set "height=405"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "screeny=405  " should set "height=405"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "screeny=405/5" should set "height=405"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "screeny=405*3" should set "height=405"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "screeny=405.32" should set "height=405"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "screeny=405.5" should set "height=405"]
-    expected: TIMEOUT
-
-  [features "screeny=_404" should NOT set "height=404"]
-    expected: TIMEOUT
-
-  [features "screeny=L404" should NOT set "height=404"]
-    expected: TIMEOUT
-
-  [features "screeny=/404" should NOT set "height=404"]
-    expected: TIMEOUT
+    expected: FAIL
 
diff --git a/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-non-integer-top.html.ini b/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-non-integer-top.html.ini
index 8540f53d8d6..10f617db69e 100644
--- a/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-non-integer-top.html.ini
+++ b/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-non-integer-top.html.ini
@@ -1,42 +1,32 @@
 [open-features-non-integer-top.html]
   type: testharness
-  expected: TIMEOUT
   [HTML: window.open `features`: non-integer values for feature `top`]
     expected: FAIL
 
   [features "top=105/5" should set "top=105"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "top=105*3" should set "top=105"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "top=105LLl" should set "top=105"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "top=105e-1" should set "top=105"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "top=105.32" should set "top=105"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "top=105e1" should set "top=105"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "top=105  " should set "top=105"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "top=105^4" should set "top=105"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "top=105.5" should set "top=105"]
-    expected: TIMEOUT
-
-  [features "top=/104" should NOT set "top=104"]
-    expected: TIMEOUT
-
-  [features "top=_104" should NOT set "top=104"]
-    expected: TIMEOUT
-
-  [features "top=L104" should NOT set "top=104"]
-    expected: TIMEOUT
+    expected: FAIL
 
diff --git a/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-non-integer-width.html.ini b/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-non-integer-width.html.ini
index 9d841e61bc0..28f93ee71b5 100644
--- a/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-non-integer-width.html.ini
+++ b/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-non-integer-width.html.ini
@@ -1,48 +1,32 @@
 [open-features-non-integer-width.html]
   type: testharness
-  expected: TIMEOUT
   [HTML: window.open `features`: non-integer values for feature `width`]
     expected: FAIL
 
   [features "width=405^4" should set "width=405"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "width=405.5" should set "width=405"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "width=405e1" should set "width=405"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "width=405  " should set "width=405"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "width=405.32" should set "width=405"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "width=405LLl" should set "width=405"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "width=405*3" should set "width=405"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "width=405e-1" should set "width=405"]
-    expected: TIMEOUT
+    expected: FAIL
 
   [features "width=405/5" should set "width=405"]
-    expected: TIMEOUT
-
-  [top=0,left=0: absence of feature "width" should be treated same as "width=0"]
-    expected: TIMEOUT
-
-  [features "width=_404" should NOT set "width=404"]
-    expected: TIMEOUT
-
-  [top=0,left=0,height=401,: absence of feature "width" should be treated same as "width=0"]
-    expected: TIMEOUT
-
-  [features "width=/404" should NOT set "width=404"]
-    expected: TIMEOUT
-
-  [features "width=L404" should NOT set "width=404"]
-    expected: TIMEOUT
+    expected: FAIL
 
diff --git a/tests/wpt/metadata/html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/window-failure.https.html.ini b/tests/wpt/metadata/html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/window-failure.https.html.ini
new file mode 100644
index 00000000000..f8986b34463
--- /dev/null
+++ b/tests/wpt/metadata/html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/window-failure.https.html.ini
@@ -0,0 +1,5 @@
+[window-failure.https.html]
+  expected: TIMEOUT
+  [SharedArrayBuffer and a cross-site <iframe>]
+    expected: TIMEOUT
+
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/embedded-content/the-img-element/null-image-source.html.ini b/tests/wpt/metadata/html/semantics/embedded-content/the-img-element/null-image-source.html.ini
deleted file mode 100644
index 4fd5896f367..00000000000
--- a/tests/wpt/metadata/html/semantics/embedded-content/the-img-element/null-image-source.html.ini
+++ /dev/null
@@ -1,7 +0,0 @@
-[null-image-source.html]
-  [img with picture parent]
-    expected: FAIL
-
-  [img with empty srcset]
-    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/webappapis/scripting/processing-model-2/unhandled-promise-rejections/promise-rejection-events.html.ini b/tests/wpt/metadata/html/webappapis/scripting/processing-model-2/unhandled-promise-rejections/promise-rejection-events.html.ini
index 034d9baebfa..496bad988c6 100644
--- a/tests/wpt/metadata/html/webappapis/scripting/processing-model-2/unhandled-promise-rejections/promise-rejection-events.html.ini
+++ b/tests/wpt/metadata/html/webappapis/scripting/processing-model-2/unhandled-promise-rejections/promise-rejection-events.html.ini
@@ -1,5 +1,4 @@
 [promise-rejection-events.html]
-  expected: TIMEOUT
   [delayed handling: delaying handling rejected promise created from createImageBitmap will cause both events to fire]
     expected: FAIL
 
@@ -9,6 +8,3 @@
   [no unhandledrejection/rejectionhandled: rejection handler attached synchronously to a promise created from createImageBitmap]
     expected: FAIL
 
-  [rejectionhandled is dispatched from a queued task, and not immediately]
-    expected: TIMEOUT
-
diff --git a/tests/wpt/metadata/websockets/stream-tentative/close.any.js.ini b/tests/wpt/metadata/websockets/stream-tentative/close.any.js.ini
new file mode 100644
index 00000000000..111c90b4779
--- /dev/null
+++ b/tests/wpt/metadata/websockets/stream-tentative/close.any.js.ini
@@ -0,0 +1,181 @@
+[close.any.html]
+  [unspecified close code with non-empty reason should set code to 1000]
+    expected: FAIL
+
+  [canceling the readable with an invalid code should be ignored]
+    expected: FAIL
+
+  [close() with an overlong reason should throw]
+    expected: FAIL
+
+  [close() with invalid code 5000 should throw]
+    expected: FAIL
+
+  [aborting the writable with a DOMException should be ignored]
+    expected: FAIL
+
+  [close() with invalid code 999 should throw]
+    expected: FAIL
+
+  [canceling the readable with a DOMException should be ignored]
+    expected: FAIL
+
+  [close(true) should throw a TypeError]
+    expected: FAIL
+
+  [canceling the readable with a reason but no code should be ignored]
+    expected: FAIL
+
+  [closing the writable should result in a clean close]
+    expected: FAIL
+
+  [close during handshake should work]
+    expected: FAIL
+
+  [canceling the readable should result in a clean close]
+    expected: FAIL
+
+  [aborting the writable with an invalid code should be ignored]
+    expected: FAIL
+
+  [aborting the writable with a code and reason should use them]
+    expected: FAIL
+
+  [canceling the readable with a code and reason should use them]
+    expected: FAIL
+
+  [canceling the readable with a code should send that code]
+    expected: FAIL
+
+  [close() with invalid code 2999 should throw]
+    expected: FAIL
+
+  [aborting the writable with a reason but no code should be ignored]
+    expected: FAIL
+
+  [aborting the writable with an invalid reason should be ignored]
+    expected: FAIL
+
+  [writer close() promise should not resolve until handshake completes]
+    expected: FAIL
+
+  [aborting the writable with a code should send that code]
+    expected: FAIL
+
+  [canceling the readable with an invalid reason should be ignored]
+    expected: FAIL
+
+  [close() with invalid code 1001 should throw]
+    expected: FAIL
+
+  [close code should be sent to server and reflected back]
+    expected: FAIL
+
+  [no close argument should send empty Close frame]
+    expected: FAIL
+
+  [unspecified close code with empty reason should send empty Close frame]
+    expected: FAIL
+
+  [aborting the writable should result in a clean close]
+    expected: FAIL
+
+  [unspecified close code should send empty Close frame]
+    expected: FAIL
+
+
+[close.any.worker.html]
+  [unspecified close code with non-empty reason should set code to 1000]
+    expected: FAIL
+
+  [canceling the readable with an invalid code should be ignored]
+    expected: FAIL
+
+  [close() with an overlong reason should throw]
+    expected: FAIL
+
+  [close() with invalid code 5000 should throw]
+    expected: FAIL
+
+  [aborting the writable with a DOMException should be ignored]
+    expected: FAIL
+
+  [close() with invalid code 999 should throw]
+    expected: FAIL
+
+  [canceling the readable with a DOMException should be ignored]
+    expected: FAIL
+
+  [close(true) should throw a TypeError]
+    expected: FAIL
+
+  [canceling the readable with a reason but no code should be ignored]
+    expected: FAIL
+
+  [closing the writable should result in a clean close]
+    expected: FAIL
+
+  [close during handshake should work]
+    expected: FAIL
+
+  [canceling the readable should result in a clean close]
+    expected: FAIL
+
+  [aborting the writable with an invalid code should be ignored]
+    expected: FAIL
+
+  [aborting the writable with a code and reason should use them]
+    expected: FAIL
+
+  [canceling the readable with a code and reason should use them]
+    expected: FAIL
+
+  [canceling the readable with a code should send that code]
+    expected: FAIL
+
+  [close() with invalid code 2999 should throw]
+    expected: FAIL
+
+  [aborting the writable with a reason but no code should be ignored]
+    expected: FAIL
+
+  [aborting the writable with an invalid reason should be ignored]
+    expected: FAIL
+
+  [writer close() promise should not resolve until handshake completes]
+    expected: FAIL
+
+  [aborting the writable with a code should send that code]
+    expected: FAIL
+
+  [canceling the readable with an invalid reason should be ignored]
+    expected: FAIL
+
+  [close() with invalid code 1001 should throw]
+    expected: FAIL
+
+  [close code should be sent to server and reflected back]
+    expected: FAIL
+
+  [no close argument should send empty Close frame]
+    expected: FAIL
+
+  [unspecified close code with empty reason should send empty Close frame]
+    expected: FAIL
+
+  [aborting the writable should result in a clean close]
+    expected: FAIL
+
+  [unspecified close code should send empty Close frame]
+    expected: FAIL
+
+
+[close.any.serviceworker.html]
+  [close]
+    expected: FAIL
+
+
+[close.any.sharedworker.html]
+  [close]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/websockets/stream-tentative/constructor.any.js.ini b/tests/wpt/metadata/websockets/stream-tentative/constructor.any.js.ini
new file mode 100644
index 00000000000..97e6ffb6ebc
--- /dev/null
+++ b/tests/wpt/metadata/websockets/stream-tentative/constructor.any.js.ini
@@ -0,0 +1,61 @@
+[constructor.any.worker.html]
+  [constructing with a valid URL should work]
+    expected: FAIL
+
+  [setting a protocol in the constructor should work]
+    expected: FAIL
+
+  [wss.connection should resolve to the right types]
+    expected: FAIL
+
+  [constructing with no URL should throw]
+    expected: FAIL
+
+  [constructing with invalid options should throw]
+    expected: FAIL
+
+  [connection failure should reject the promises]
+    expected: FAIL
+
+  [protocols should be required to be a list]
+    expected: FAIL
+
+  [constructing with an invalid URL should throw]
+    expected: FAIL
+
+
+[constructor.any.sharedworker.html]
+  [constructor]
+    expected: FAIL
+
+
+[constructor.any.html]
+  [constructing with a valid URL should work]
+    expected: FAIL
+
+  [setting a protocol in the constructor should work]
+    expected: FAIL
+
+  [wss.connection should resolve to the right types]
+    expected: FAIL
+
+  [constructing with no URL should throw]
+    expected: FAIL
+
+  [constructing with invalid options should throw]
+    expected: FAIL
+
+  [connection failure should reject the promises]
+    expected: FAIL
+
+  [protocols should be required to be a list]
+    expected: FAIL
+
+  [constructing with an invalid URL should throw]
+    expected: FAIL
+
+
+[constructor.any.serviceworker.html]
+  [constructor]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/workers/constructors/Worker/Worker-constructor.html.ini b/tests/wpt/metadata/workers/constructors/Worker/Worker-constructor.html.ini
new file mode 100644
index 00000000000..80f9a4f15b8
--- /dev/null
+++ b/tests/wpt/metadata/workers/constructors/Worker/Worker-constructor.html.ini
@@ -0,0 +1,2 @@
+[Worker-constructor.html]
+  expected: ERROR
diff --git a/tests/wpt/web-platform-tests/css/css-grid/parsing/grid-template-columns-invalid.html b/tests/wpt/web-platform-tests/css/css-grid/parsing/grid-template-columns-invalid.html
new file mode 100644
index 00000000000..9d7aac48721
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/parsing/grid-template-columns-invalid.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>CSS Grid Layout Test: parsing grid-template-columns with invalid values</title>
+<link rel="help" href="https://drafts.csswg.org/css-grid-1/#propdef-grid-template-columns">
+<meta name="assert" content="grid-template-columns supports only the grammar 'none | <track-list> | <auto-track-list>'.">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/parsing-testcommon.js"></script>
+</head>
+<body>
+<script>
+test_invalid_value("grid-template-columns", '-10px');
+test_invalid_value("grid-template-columns", '-20%');
+test_invalid_value("grid-template-columns", '-5fr');
+test_invalid_value("grid-template-columns", 'minmax(5fr, calc(0.5em + 10px))');
+test_invalid_value("grid-template-columns", 'minmax(-10px, auto)');
+test_invalid_value("grid-template-columns", 'minmax(-20%, max-content)');
+test_invalid_value("grid-template-columns", 'minmax(min-content, -20%)');
+test_invalid_value("grid-template-columns", 'fit-content(-10px)');
+test_invalid_value("grid-template-columns", 'fit-content(-20%)');
+test_invalid_value("grid-template-columns", '[one] 10px [two three] repeat(20%) [four five six] 3fr [seven]');
+test_invalid_value("grid-template-columns", '[one]');
+test_invalid_value("grid-template-columns", '[one] 10px [two] [three]');
+test_invalid_value("grid-template-columns", 'repeat(auto-fill, -10px)');
+test_invalid_value("grid-template-columns", 'repeat(auto-fill, 10px) repeat(auto-fit, 20%)');
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/parsing/grid-template-columns-valid.html b/tests/wpt/web-platform-tests/css/css-grid/parsing/grid-template-columns-valid.html
new file mode 100644
index 00000000000..85ac76a999a
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/parsing/grid-template-columns-valid.html
@@ -0,0 +1,79 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>CSS Grid Layout Test: parsing grid-template-columns with valid values</title>
+<link rel="help" href="https://drafts.csswg.org/css-grid-1/#propdef-grid-template-columns">
+<meta name="assert" content="grid-template-columns supports the full grammar 'none | <track-list> | <auto-track-list>'.">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/parsing-testcommon.js"></script>
+</head>
+<body>
+<script>
+test_valid_value("grid-template-columns", "none");
+
+// track-size <fixed-breadth> = <length-percentage> | <flex> | min-content | max-content | auto
+test_valid_value("grid-template-columns", '10px');
+test_valid_value("grid-template-columns", '20%');
+test_valid_value("grid-template-columns", 'calc(-0.5em + 10px)');
+test_valid_value("grid-template-columns", 'calc(0.5em + 10px)');
+test_valid_value("grid-template-columns", 'calc(30% + 40vw)');
+test_valid_value("grid-template-columns", '5fr');
+test_valid_value("grid-template-columns", 'min-content');
+test_valid_value("grid-template-columns", 'max-content');
+test_valid_value("grid-template-columns", 'auto');
+
+// track-size minmax( <inflexible-breadth> , <track-breadth> )
+test_valid_value("grid-template-columns", 'minmax(10px, auto)');
+test_valid_value("grid-template-columns", 'minmax(20%, max-content)');
+test_valid_value("grid-template-columns", 'minmax(calc(-0.5em + 10px), min-content)');
+test_valid_value("grid-template-columns", 'minmax(calc(0.5em + 10px), 5fr)');
+test_valid_value("grid-template-columns", 'minmax(calc(30% + 40vw), 10px)');
+test_valid_value("grid-template-columns", 'minmax(min-content, 20%)');
+test_valid_value("grid-template-columns", 'minmax(max-content, calc(-0.5em + 10px))');
+test_valid_value("grid-template-columns", 'minmax(auto, calc(0.5em + 10px))');
+
+// track-size fit-content( <length-percentage> )
+test_valid_value("grid-template-columns", 'fit-content(10px)');
+test_valid_value("grid-template-columns", 'fit-content(20%)');
+test_valid_value("grid-template-columns", 'fit-content(calc(-0.5em + 10px))');
+test_valid_value("grid-template-columns", 'fit-content(calc(0.5em + 10px))');
+test_valid_value("grid-template-columns", 'fit-content(calc(30% + 40vw))');
+
+// <track-repeat> = repeat( [ <positive-integer> ] , [ <line-names>? <track-size> ]+ <line-names>? )
+
+// 'repeat(1, [] 10px)' in Blink
+// 'repeat(1, 10px)' in Firefox
+// '[] 10px' in Safari
+// '10px' in Edge 18
+test_valid_value("grid-template-columns", 'repeat(1, [] 10px)', ['repeat(1, 10px)', 'repeat(1, [] 10px)']);
+
+// 'repeat(1, [one two] 20%)' in Blink, Firefox
+// '[one two] 20%' in Safari, Edge 18
+test_valid_value("grid-template-columns", 'repeat(1, [one two] 20%)');
+
+// 'repeat(2, minmax(10px, auto))' in Blink, Firefox, Edge 18
+// 'minmax(10px, auto) minmax(10px, auto)' in Safari
+test_valid_value("grid-template-columns", 'repeat(2, minmax(10px, auto))');
+
+test_valid_value("grid-template-columns", 'repeat(2, fit-content(20%) [three four] 30px 40px [five six])');
+
+// <track-list> = [ <line-names>? [ <track-size> | <track-repeat> ] ]+ <line-names>?
+test_valid_value("grid-template-columns", 'min-content repeat(5, minmax(10px, auto))');
+
+// <auto-repeat> = repeat( [ auto-fill | auto-fit ] , [ <line-names>? <fixed-size> ]+ <line-names>? )
+test_valid_value("grid-template-columns", 'repeat(auto-fill, 10px)');
+test_valid_value("grid-template-columns", 'repeat(auto-fit, [one] 20%)');
+test_valid_value("grid-template-columns", 'repeat(auto-fill, minmax(30px, 5fr) [two])');
+test_valid_value("grid-template-columns", 'repeat(auto-fit, [three] minmax(max-content, 6em) [four])');
+
+// <auto-track-list> =
+// [ <line-names>? [ <fixed-size> | <fixed-repeat> ] ]* <line-names>?
+// <auto-repeat>
+// [ <line-names>? [ <fixed-size> | <fixed-repeat> ] ]* <line-names>?
+
+test_valid_value("grid-template-columns", '[one] repeat(2, minmax(10px, auto)) [two] 30px [three] repeat(auto-fill, 10px) 40px [four five] repeat(2, minmax(10px, auto)) [six]');
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/parsing/grid-template-rows-invalid.html b/tests/wpt/web-platform-tests/css/css-grid/parsing/grid-template-rows-invalid.html
new file mode 100644
index 00000000000..8a0fe9ddfa2
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/parsing/grid-template-rows-invalid.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>CSS Grid Layout Test: parsing grid-template-rows with invalid values</title>
+<link rel="help" href="https://drafts.csswg.org/css-grid-1/#propdef-grid-template-rows">
+<meta name="assert" content="grid-template-rows supports only the grammar 'none | <track-list> | <auto-track-list>'.">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/parsing-testcommon.js"></script>
+</head>
+<body>
+<script>
+test_invalid_value("grid-template-rows", '-10px');
+test_invalid_value("grid-template-rows", '-20%');
+test_invalid_value("grid-template-rows", '-5fr');
+test_invalid_value("grid-template-rows", 'minmax(5fr, calc(0.5em + 10px))');
+test_invalid_value("grid-template-rows", 'minmax(-10px, auto)');
+test_invalid_value("grid-template-rows", 'minmax(-20%, max-content)');
+test_invalid_value("grid-template-rows", 'minmax(min-content, -20%)');
+test_invalid_value("grid-template-rows", 'fit-content(-10px)');
+test_invalid_value("grid-template-rows", 'fit-content(-20%)');
+test_invalid_value("grid-template-rows", '[one] 10px [two three] repeat(20%) [four five six] 3fr [seven]');
+test_invalid_value("grid-template-rows", '[one]');
+test_invalid_value("grid-template-rows", '[one] 10px [two] [three]');
+test_invalid_value("grid-template-rows", 'repeat(auto-fill, -10px)');
+test_invalid_value("grid-template-rows", 'repeat(auto-fill, 10px) repeat(auto-fit, 20%)');
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/parsing/grid-template-rows-valid.html b/tests/wpt/web-platform-tests/css/css-grid/parsing/grid-template-rows-valid.html
new file mode 100644
index 00000000000..ec8d64f79ba
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/parsing/grid-template-rows-valid.html
@@ -0,0 +1,79 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>CSS Grid Layout Test: parsing grid-template-rows with valid values</title>
+<link rel="help" href="https://drafts.csswg.org/css-grid-1/#propdef-grid-template-rows">
+<meta name="assert" content="grid-template-rows supports the full grammar 'none | <track-list> | <auto-track-list>'.">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/parsing-testcommon.js"></script>
+</head>
+<body>
+<script>
+test_valid_value("grid-template-rows", "none");
+
+// track-size <fixed-breadth> = <length-percentage> | <flex> | min-content | max-content | auto
+test_valid_value("grid-template-rows", '10px');
+test_valid_value("grid-template-rows", '20%');
+test_valid_value("grid-template-rows", 'calc(-0.5em + 10px)');
+test_valid_value("grid-template-rows", 'calc(0.5em + 10px)');
+test_valid_value("grid-template-rows", 'calc(30% + 40vw)');
+test_valid_value("grid-template-rows", '5fr');
+test_valid_value("grid-template-rows", 'min-content');
+test_valid_value("grid-template-rows", 'max-content');
+test_valid_value("grid-template-rows", 'auto');
+
+// track-size minmax( <inflexible-breadth> , <track-breadth> )
+test_valid_value("grid-template-rows", 'minmax(10px, auto)');
+test_valid_value("grid-template-rows", 'minmax(20%, max-content)');
+test_valid_value("grid-template-rows", 'minmax(calc(-0.5em + 10px), min-content)');
+test_valid_value("grid-template-rows", 'minmax(calc(0.5em + 10px), 5fr)');
+test_valid_value("grid-template-rows", 'minmax(calc(30% + 40vw), 10px)');
+test_valid_value("grid-template-rows", 'minmax(min-content, 20%)');
+test_valid_value("grid-template-rows", 'minmax(max-content, calc(-0.5em + 10px))');
+test_valid_value("grid-template-rows", 'minmax(auto, calc(0.5em + 10px))');
+
+// track-size fit-content( <length-percentage> )
+test_valid_value("grid-template-rows", 'fit-content(10px)');
+test_valid_value("grid-template-rows", 'fit-content(20%)');
+test_valid_value("grid-template-rows", 'fit-content(calc(-0.5em + 10px))');
+test_valid_value("grid-template-rows", 'fit-content(calc(0.5em + 10px))');
+test_valid_value("grid-template-rows", 'fit-content(calc(30% + 40vw))');
+
+// <track-repeat> = repeat( [ <positive-integer> ] , [ <line-names>? <track-size> ]+ <line-names>? )
+
+// 'repeat(1, [] 10px)' in Blink
+// 'repeat(1, 10px)' in Firefox
+// '[] 10px' in Safari
+// '10px' in Edge 18
+test_valid_value("grid-template-rows", 'repeat(1, [] 10px)', ['repeat(1, 10px)', 'repeat(1, [] 10px)']);
+
+// 'repeat(1, [one two] 20%)' in Blink, Firefox
+// '[one two] 20%' in Safari, Edge 18
+test_valid_value("grid-template-rows", 'repeat(1, [one two] 20%)');
+
+// 'repeat(2, minmax(10px, auto))' in Blink, Firefox, Edge 18
+// 'minmax(10px, auto) minmax(10px, auto)' in Safari
+test_valid_value("grid-template-rows", 'repeat(2, minmax(10px, auto))');
+
+test_valid_value("grid-template-rows", 'repeat(2, fit-content(20%) [three four] 30px 40px [five six])');
+
+// <track-list> = [ <line-names>? [ <track-size> | <track-repeat> ] ]+ <line-names>?
+test_valid_value("grid-template-rows", 'min-content repeat(5, minmax(10px, auto))');
+
+// <auto-repeat> = repeat( [ auto-fill | auto-fit ] , [ <line-names>? <fixed-size> ]+ <line-names>? )
+test_valid_value("grid-template-rows", 'repeat(auto-fill, 10px)');
+test_valid_value("grid-template-rows", 'repeat(auto-fit, [one] 20%)');
+test_valid_value("grid-template-rows", 'repeat(auto-fill, minmax(30px, 5fr) [two])');
+test_valid_value("grid-template-rows", 'repeat(auto-fit, [three] minmax(max-content, 6em) [four])');
+
+// <auto-track-list> =
+// [ <line-names>? [ <fixed-size> | <fixed-repeat> ] ]* <line-names>?
+// <auto-repeat>
+// [ <line-names>? [ <fixed-size> | <fixed-repeat> ] ]* <line-names>?
+
+test_valid_value("grid-template-rows", '[one] repeat(2, minmax(10px, auto)) [two] 30px [three] repeat(auto-fill, 10px) 40px [four five] repeat(2, minmax(10px, auto)) [six]');
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/editing/data/insert-list-items-in-table-cells.js b/tests/wpt/web-platform-tests/editing/data/insert-list-items-in-table-cells.js
index 6a4d3985a57..9324d5b55ac 100644
--- a/tests/wpt/web-platform-tests/editing/data/insert-list-items-in-table-cells.js
+++ b/tests/wpt/web-platform-tests/editing/data/insert-list-items-in-table-cells.js
@@ -5,6 +5,26 @@ var browserTests = [
     '<div contenteditable="true"><table><tbody><tr><td><ol><li>fsdf</li></ol></td><td>fsdf</td></tr><tr><td>gghfg</td><td>fsfg</td></tr></tbody></table></div>',
     [true],
     {"insertOrderedList":[false,false,"false",false,true,"true"]}],
+['<div contenteditable="true"><table><tr><td>[fs<br>df]</td><td>fsdf</td></tr><tr><td>gghfg</td><td>fsfg</td></tr></table></div>',
+    [["insertOrderedList",""]],
+    '<div contenteditable="true"><table><tbody><tr><td><ol><li>fs</li><li>df</li></ol></td><td>fsdf</td></tr><tr><td>gghfg</td><td>fsfg</td></tr></tbody></table></div>',
+    [true],
+    {"insertOrderedList":[false,false,"false",false,true,"true"]}],
+['<div contenteditable="true"><table><tr><td>[f<b>s<br>d</b>f]</td><td>fsdf</td></tr><tr><td>gghfg</td><td>fsfg</td></tr></table></div>',
+    [["insertOrderedList",""]],
+    '<div contenteditable="true"><table><tbody><tr><td><ol><li>f<b>s</b></li><li><b>d</b>f</li></ol></td><td>fsdf</td></tr><tr><td>gghfg</td><td>fsfg</td></tr></tbody></table></div>',
+    [true],
+    {"insertOrderedList":[false,false,"false",false,true,"true"]}],
+['<div contenteditable="true"><table><tr><td>[fs]<br>df</td><td>fsdf</td></tr><tr><td>gghfg</td><td>fsfg</td></tr></table></div>',
+    [["insertOrderedList",""]],
+    '<div contenteditable="true"><table><tbody><tr><td><ol><li>fs</li></ol>df</td><td>fsdf</td></tr><tr><td>gghfg</td><td>fsfg</td></tr></tbody></table></div>',
+    [true],
+    {"insertOrderedList":[false,false,"false",false,true,"true"]}],
+['<div contenteditable="true"><table><tr><td>[f<b>s]<br>d</b>f</td><td>fsdf</td></tr><tr><td>gghfg</td><td>fsfg</td></tr></table></div>',
+    [["insertOrderedList",""]],
+    '<div contenteditable="true"><table><tbody><tr><td><ol><li>f<b>s</b></li></ol><b>d</b>f</td><td>fsdf</td></tr><tr><td>gghfg</td><td>fsfg</td></tr></tbody></table></div>',
+    [true],
+    {"insertOrderedList":[false,false,"false",false,true,"true"]}],
 ['<div contenteditable="true"><table><tr data-start=0 data-end=2><td>fsdf</td><td>fsdf</td></tr><tr><td>gghfg</td><td>fsfg</td></tr></table></div>',
     [["insertOrderedList",""]],
     '<div contenteditable="true"><table><tbody><tr><td><ol><li>fsdf</li></ol></td><td><ol><li>fsdf</li></ol></td></tr><tr><td>gghfg</td><td>fsfg</td></tr></tbody></table></div>',
diff --git a/tests/wpt/web-platform-tests/html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/resources/iframe-failure.html b/tests/wpt/web-platform-tests/html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/resources/iframe-failure.html
new file mode 100644
index 00000000000..2c33dba79a2
--- /dev/null
+++ b/tests/wpt/web-platform-tests/html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/resources/iframe-failure.html
@@ -0,0 +1,3 @@
+<script>
+parent.postMessage(new SharedArrayBuffer(10), "*");
+</script>
diff --git a/tests/wpt/web-platform-tests/html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/resources/iframe-failure.html.headers b/tests/wpt/web-platform-tests/html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/resources/iframe-failure.html.headers
new file mode 100644
index 00000000000..1528bf05e63
--- /dev/null
+++ b/tests/wpt/web-platform-tests/html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/resources/iframe-failure.html.headers
@@ -0,0 +1,2 @@
+Cross-Origin-Embedder-Policy: require-corp
+Cross-Origin-Resource-Policy: cross-site
diff --git a/tests/wpt/web-platform-tests/html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/window-failure.https.html b/tests/wpt/web-platform-tests/html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/window-failure.https.html
new file mode 100644
index 00000000000..203a9f637fe
--- /dev/null
+++ b/tests/wpt/web-platform-tests/html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/window-failure.https.html
@@ -0,0 +1,15 @@
+<!doctype html>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/common/get-host-info.sub.js"></script>
+<div id=log></div>
+<script>
+async_test(t => {
+  const frame = document.createElement("iframe");
+  t.add_cleanup(() => frame.remove());
+  frame.src = get_host_info().HTTPS_NOTSAMESITE_ORIGIN + new URL("resources/iframe-failure.html", location).pathname;
+  window.onmessage = t.unreached_func("Got a message event, expected a messageerror event");
+  window.onmessageerror = t.step_func_done();
+  document.body.append(frame);
+}, "SharedArrayBuffer and a cross-site <iframe>");
+</script>
diff --git a/tests/wpt/web-platform-tests/html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/window-failure.https.html.headers b/tests/wpt/web-platform-tests/html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/window-failure.https.html.headers
new file mode 100644
index 00000000000..63b60e490f4
--- /dev/null
+++ b/tests/wpt/web-platform-tests/html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/window-failure.https.html.headers
@@ -0,0 +1,2 @@
+Cross-Origin-Opener-Policy: same-origin
+Cross-Origin-Embedder-Policy: require-corp
diff --git a/tests/wpt/web-platform-tests/mathml/relations/css-styling/display-contents.html b/tests/wpt/web-platform-tests/mathml/relations/css-styling/display-contents.html
new file mode 100644
index 00000000000..aeaa28da908
--- /dev/null
+++ b/tests/wpt/web-platform-tests/mathml/relations/css-styling/display-contents.html
@@ -0,0 +1,36 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>display: contents</title>
+<link rel="help" href="https://mathml-refresh.github.io/mathml-core/#css-styling">
+<meta name="assert" content="Verify that display: contents computes to display: none">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/mathml/support/mathml-fragments.js"></script>
+<script>
+  setup({ explicit_done: true });
+  window.addEventListener("load", runTests);
+  function runTests() {
+      var container = document.getElementById("container");
+      for (tag in MathMLFragments) {
+          container.insertAdjacentHTML("beforeend", `<math>${MathMLFragments[tag]}</math>`);
+      }
+      test(function() {
+          Array.from(document.getElementsByClassName("element")).forEach(element => {
+              var style = window.getComputedStyle(element);
+              element.setAttribute("style", "display: contents");
+              assert_equals(style.getPropertyValue("display"), "none", `${tag}`);
+          });
+      }, "display: contents computes to display: none");
+      done();
+  }
+</script>
+</head>
+<body>
+  <div id="log"></div>
+  <div id="container">
+    <math class="element"></math>
+  </div>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/mathml/relations/css-styling/not-participating-to-parent-layout.html b/tests/wpt/web-platform-tests/mathml/relations/css-styling/not-participating-to-parent-layout.html
index 89389fc6682..769449b97d4 100644
--- a/tests/wpt/web-platform-tests/mathml/relations/css-styling/not-participating-to-parent-layout.html
+++ b/tests/wpt/web-platform-tests/mathml/relations/css-styling/not-participating-to-parent-layout.html
@@ -24,6 +24,7 @@
             continue;
         // TODO: Add floats too?
         ["display: none",
+         "display: contents",
          "position: absolute",
          "position: fixed"
         ].forEach(style => {
diff --git a/tests/wpt/web-platform-tests/mathml/relations/css-styling/padding-border-margin/border-002.html b/tests/wpt/web-platform-tests/mathml/relations/css-styling/padding-border-margin/border-002.html
index f78bc588c04..06a719de640 100644
--- a/tests/wpt/web-platform-tests/mathml/relations/css-styling/padding-border-margin/border-002.html
+++ b/tests/wpt/web-platform-tests/mathml/relations/css-styling/padding-border-margin/border-002.html
@@ -28,6 +28,7 @@
                 var s = compareSizeWithAndWithoutStyle(tag, style);
                 assert_approx_equals(s.element_width_delta, 30 + 40, epsilon, "left/right border");
                 assert_approx_equals(s.element_height_delta, 50 + 60, epsilon, "top/bottom border");
+                assert_approx_equals(s.preferred_width_delta, 30 + 40, epsilon, "preferred width");
             }, `Border properties on ${tag}`);
             continue;
         }
@@ -40,6 +41,7 @@
             assert_approx_equals(s.bottom_delta, 60, epsilon, "bottom border");
             assert_approx_equals(s.element_width_delta, 30 + 40, epsilon, "element width");
             assert_approx_equals(s.element_height_delta, 50 + 60, epsilon, "element height");
+            assert_approx_equals(s.preferred_width_delta, 30 + 40, epsilon, "element preferred width");
         }, `Border properties on ${tag}`);
 
         test(function() {
@@ -50,6 +52,7 @@
             assert_approx_equals(s.bottom_delta, 60, epsilon, "bottom border");
             assert_approx_equals(s.element_width_delta, 30 + 40, epsilon, "element width");
             assert_approx_equals(s.element_height_delta, 50 + 60, epsilon, "element height");
+            assert_approx_equals(s.preferred_width_delta, 30 + 40, epsilon, "element preferred width");
         }, `Border properties on ${tag} (rtl)`);
     }
 
diff --git a/tests/wpt/web-platform-tests/mathml/relations/css-styling/padding-border-margin/margin-002.html b/tests/wpt/web-platform-tests/mathml/relations/css-styling/padding-border-margin/margin-002.html
index 69e1fd6b033..01c8f3e45f8 100644
--- a/tests/wpt/web-platform-tests/mathml/relations/css-styling/padding-border-margin/margin-002.html
+++ b/tests/wpt/web-platform-tests/mathml/relations/css-styling/padding-border-margin/margin-002.html
@@ -30,6 +30,7 @@
                 assert_approx_equals(s.height_delta, 50 + 60, epsilon, "top/bottom margin");
                 assert_approx_equals(s.element_width_delta, 0, epsilon, "element width");
                 assert_approx_equals(s.element_height_delta, 0, epsilon, "element height");
+                assert_approx_equals(s.preferred_width_delta, 30 + 40, epsilon, "preferred width");
             }, `Margin properties on ${tag}`);
             continue;
         }
@@ -42,6 +43,7 @@
             assert_approx_equals(s.bottom_delta, 60, epsilon, "bottom margin");
             assert_approx_equals(s.element_width_delta, 0, epsilon, "element width");
             assert_approx_equals(s.element_height_delta, 0, epsilon, "element height");
+            assert_approx_equals(s.preferred_width_delta, 30 + 40, epsilon, "preferred width");
         }, `Margin properties on ${tag}`);
 
         test(function() {
@@ -52,6 +54,7 @@
             assert_approx_equals(s.bottom_delta, 60, epsilon, "bottom margin");
             assert_approx_equals(s.element_width_delta, 0, epsilon, "element width");
             assert_approx_equals(s.element_height_delta, 0, epsilon, "element height");
+            assert_approx_equals(s.preferred_width_delta, 30 + 40, epsilon, "preferred width");
         }, `Margin properties on ${tag} (rtl)`);
 
         test(function() {
@@ -64,6 +67,7 @@
             assert_approx_equals(s.bottom_delta, 60 * 2, epsilon, "bottom margin");
             assert_approx_equals(s.element_width_delta, 0, epsilon, "element width");
             assert_approx_equals(s.element_height_delta, 0, epsilon, "element height");
+            assert_approx_equals(s.preferred_width_delta, (30 + 40) * 2, epsilon, "preferred width");
         }, `Margin properties on ${tag} (no margin-collapsing)`);
     }
 
diff --git a/tests/wpt/web-platform-tests/mathml/relations/css-styling/padding-border-margin/padding-002.html b/tests/wpt/web-platform-tests/mathml/relations/css-styling/padding-border-margin/padding-002.html
index a2f167a3404..565dfc43b56 100644
--- a/tests/wpt/web-platform-tests/mathml/relations/css-styling/padding-border-margin/padding-002.html
+++ b/tests/wpt/web-platform-tests/mathml/relations/css-styling/padding-border-margin/padding-002.html
@@ -28,6 +28,7 @@
                 var s = compareSizeWithAndWithoutStyle(tag, style);
                 assert_approx_equals(s.element_width_delta, 30 + 40, epsilon, "left/right padding");
                 assert_approx_equals(s.element_height_delta, 50 + 60, epsilon, "top/bottom padding");
+                assert_approx_equals(s.preferred_width_delta, 30 + 40, epsilon, "preferred width");
             }, `Padding properties on ${tag}`);
             continue;
         }
@@ -40,6 +41,7 @@
             assert_approx_equals(s.bottom_delta, 60, epsilon, "bottom padding");
             assert_approx_equals(s.element_width_delta, 30 + 40, epsilon, "element width");
             assert_approx_equals(s.element_height_delta, 50 + 60, epsilon, "element height");
+            assert_approx_equals(s.preferred_width_delta, 30 + 40, epsilon, "preferred width");
         }, `Padding properties on ${tag}`);
 
         test(function() {
@@ -50,6 +52,7 @@
             assert_approx_equals(s.bottom_delta, 60, epsilon, "bottom padding");
             assert_approx_equals(s.element_width_delta, 30 + 40, epsilon, "element width");
             assert_approx_equals(s.element_height_delta, 50 + 60, epsilon, "element height");
+            assert_approx_equals(s.preferred_width_delta, 30 + 40, epsilon, "preferred width");
         }, `Padding properties on ${tag} (rtl)`);
     }
 
diff --git a/tests/wpt/web-platform-tests/mathml/relations/html5-tree/clipboard-event-handlers.tentative.html b/tests/wpt/web-platform-tests/mathml/relations/html5-tree/clipboard-event-handlers.tentative.html
index d293b1500c7..00310046168 100644
--- a/tests/wpt/web-platform-tests/mathml/relations/html5-tree/clipboard-event-handlers.tentative.html
+++ b/tests/wpt/web-platform-tests/mathml/relations/html5-tree/clipboard-event-handlers.tentative.html
@@ -1,25 +1,10 @@
 <!DOCTYPE html>
 <title>DocumentAndElementEventHandlers / clipboard events for MathML</title>
-<link
-  rel="help"
-  href="https://mathml-refresh.github.io/mathml-core/#dom-and-javascript"
-/>
-<link
-  rel="help"
-  href="https://html.spec.whatwg.org/multipage/webappapis.html#documentandelementeventhandlers"
-/>
-<link
-  rel="help"
-  href="https://w3c.github.io/clipboard-apis/#clipboard-event-copy"
-/>
-<link
-  rel="help"
-  href="https://w3c.github.io/clipboard-apis/#clipboard-event-cut"
-/>
-<link
-  rel="help"
-  href="https://w3c.github.io/clipboard-apis/#clipboard-event-paste"
-/>
+<link rel="help" href="https://mathml-refresh.github.io/mathml-core/#dom-and-javascript"/>
+<link rel="help" href="https://html.spec.whatwg.org/multipage/webappapis.html#documentandelementeventhandlers"/>
+<link rel="help" href="https://w3c.github.io/clipboard-apis/#clipboard-event-copy"/>
+<link rel="help" href="https://w3c.github.io/clipboard-apis/#clipboard-event-cut"/>
+<link rel="help" href="https://w3c.github.io/clipboard-apis/#clipboard-event-paste"/>
 <meta
   name="assert"
   content="MathMLElements incorporate a functional DocumentAndElementEventHandlers interface"
diff --git a/tests/wpt/web-platform-tests/mathml/relations/html5-tree/css-inline-style-interface.tentative.html b/tests/wpt/web-platform-tests/mathml/relations/html5-tree/css-inline-style-interface.tentative.html
index 708926413f2..b82f98e28b7 100644
--- a/tests/wpt/web-platform-tests/mathml/relations/html5-tree/css-inline-style-interface.tentative.html
+++ b/tests/wpt/web-platform-tests/mathml/relations/html5-tree/css-inline-style-interface.tentative.html
@@ -3,10 +3,7 @@
   <head>
     <meta charset="utf-8" />
     <title>MathML 'ElementCSSInlineStyle` Mixin Tests</title>
-    <link
-      rel="help"
-      href="https://mathml-refresh.github.io/mathml-core/#dom-and-javascript"
-    />
+    <link rel="help" href="https://mathml-refresh.github.io/mathml-core/#dom-and-javascript"/>
     <style>
       math * {
         background-color: red;
diff --git a/tests/wpt/web-platform-tests/mathml/relations/html5-tree/html-or-foreign-element-interfaces.tentative.html b/tests/wpt/web-platform-tests/mathml/relations/html5-tree/html-or-foreign-element-interfaces.tentative.html
index 1fcaf6c4016..bf4b99894da 100644
--- a/tests/wpt/web-platform-tests/mathml/relations/html5-tree/html-or-foreign-element-interfaces.tentative.html
+++ b/tests/wpt/web-platform-tests/mathml/relations/html5-tree/html-or-foreign-element-interfaces.tentative.html
@@ -3,10 +3,7 @@
   <head>
     <meta charset="utf-8" />
     <title>MathML 'HTMLOrForeignElement` Mixin Tests</title>
-    <link
-      rel="help"
-      href="https://mathml-refresh.github.io/mathml-core/#dom-and-javascript"
-    />
+    <link rel="help" href="https://mathml-refresh.github.io/mathml-core/#dom-and-javascript"/>
     <style>
       mi {
         background-color: red;
diff --git a/tests/wpt/web-platform-tests/mathml/relations/html5-tree/math-global-event-handlers.tentative.html b/tests/wpt/web-platform-tests/mathml/relations/html5-tree/math-global-event-handlers.tentative.html
index 92e18639dff..807a29ee315 100644
--- a/tests/wpt/web-platform-tests/mathml/relations/html5-tree/math-global-event-handlers.tentative.html
+++ b/tests/wpt/web-platform-tests/mathml/relations/html5-tree/math-global-event-handlers.tentative.html
@@ -1,18 +1,9 @@
 <!DOCTYPE html>
 <title>MathMLElement GlobalEventHandlers</title>
 <link rel="author" title="Brian Kardell" href="mailto:bkardell@igalia.com" />
-<link
-  rel="help"
-  href="https://mathml-refresh.github.io/mathml-core/#dom-and-javascript"
-/>
-<link
-  rel="help"
-  href="https://html.spec.whatwg.org/multipage/#event-handler-idl-attributes"
-/>
-<link
-  rel="help"
-  href="https://html.spec.whatwg.org/multipage/#event-handler-content-attributes"
-/>
+<link rel="help" href="https://mathml-refresh.github.io/mathml-core/#dom-and-javascript"/>
+<link rel="help" href="https://html.spec.whatwg.org/multipage/#event-handler-idl-attributes"/>
+<link rel="help" href="https://html.spec.whatwg.org/multipage/#event-handler-content-attributes"/>
 <script src="/resources/testharness.js"></script>
 <script src="/resources/testharnessreport.js"></script>
 <script src="/resources/WebIDLParser.js"></script>
diff --git a/tests/wpt/web-platform-tests/mathml/support/box-comparison.js b/tests/wpt/web-platform-tests/mathml/support/box-comparison.js
index c46808f7fee..a574b01706b 100644
--- a/tests/wpt/web-platform-tests/mathml/support/box-comparison.js
+++ b/tests/wpt/web-platform-tests/mathml/support/box-comparison.js
@@ -23,12 +23,13 @@ function compareSpaceWithAndWithoutStyle(tag, style, parentStyle, direction) {
     if (!direction)
       direction = "ltr";
     document.body.insertAdjacentHTML("beforeend", `<div style="position: absolute;">\
-<math><mrow dir="${direction}">${MathMLFragments[tag]}</mrow></math>\
-<math><mrow dir="${direction}">${MathMLFragments[tag]}</mrow></math>\
+<div style="display: inline-block"><math><mrow dir="${direction}">${MathMLFragments[tag]}</mrow></math></div>\
+<div style="display: inline-block"><math><mrow dir="${direction}">${MathMLFragments[tag]}</mrow></math></div>\
 </div>`);
     var div = document.body.lastElementChild;
 
-    var styleMath = div.firstElementChild;
+    var styleDiv = div.firstElementChild;
+    var styleMath = styleDiv.firstElementChild;
     var styleParent = styleMath.firstElementChild;
     if (parentStyle)
         styleParent.setAttribute("style", parentStyle);
@@ -40,7 +41,8 @@ function compareSpaceWithAndWithoutStyle(tag, style, parentStyle, direction) {
     var styleChildBox = styleChild.getBoundingClientRect();
     var styleSpace = spaceBetween(styleChildBox, styleMathBox);
 
-    var noStyleMath = div.lastElementChild;
+    var noStyleDiv = div.lastElementChild;
+    var noStyleMath = noStyleDiv.firstElementChild;
     var noStyleElement = FragmentHelper.element(noStyleMath);
     var noStyleChild = FragmentHelper.forceNonEmptyElement(noStyleElement);
     var noStyleMathBox = noStyleMath.getBoundingClientRect();
@@ -48,9 +50,14 @@ function compareSpaceWithAndWithoutStyle(tag, style, parentStyle, direction) {
     var noStyleChildBox = noStyleChild.getBoundingClientRect();
     var noStyleSpace = spaceBetween(noStyleChildBox, noStyleMathBox);
 
+    var preferredWidthDelta =
+        styleDiv.getBoundingClientRect().width -
+        noStyleDiv.getBoundingClientRect().width;
+
     div.style = "display: none;"; // Hide the div after measurement.
 
     return {
+        preferred_width_delta: preferredWidthDelta,
         left_delta: styleSpace.left - noStyleSpace.left,
         right_delta: styleSpace.right - noStyleSpace.right,
         top_delta: styleSpace.top - noStyleSpace.top,
@@ -65,25 +72,32 @@ function compareSizeWithAndWithoutStyle(tag, style) {
         throw `Invalid argument: ${tag}`;
 
     document.body.insertAdjacentHTML("beforeend", `<div style="position: absolute;">\
-<math>${MathMLFragments[tag]}</math>\
-<math>${MathMLFragments[tag]}</math>\
+<div style="display: inline-block"><math>${MathMLFragments[tag]}</math></div>\
+<div style="display: inline-block"><math>${MathMLFragments[tag]}</math></div>\
 </div>`);
     var div = document.body.lastElementChild;
 
-    var styleMath = div.firstElementChild;
+    var styleDiv = div.firstElementChild;
+    var styleMath = styleDiv.firstElementChild;
     var styleElement = FragmentHelper.element(styleMath);
     styleElement.setAttribute("style", style);
     var styleMathBox = styleMath.getBoundingClientRect();
     var styleElementBox = styleElement.getBoundingClientRect();
 
-    var noStyleMath = div.lastElementChild;
+    var noStyleDiv = div.lastElementChild;
+    var noStyleMath = noStyleDiv.firstElementChild;
     var noStyleElement = FragmentHelper.element(noStyleMath);
     var noStyleMathBox = noStyleMath.getBoundingClientRect();
     var noStyleElementBox = noStyleElement.getBoundingClientRect();
 
+    var preferredWidthDelta =
+        styleDiv.getBoundingClientRect().width -
+        noStyleDiv.getBoundingClientRect().width;
+
     div.style = "display: none;"; // Hide the div after measurement.
 
     return {
+        preferred_width_delta: preferredWidthDelta,
         width_delta: styleMathBox.width - noStyleMathBox.width,
         height_delta: styleMathBox.height - noStyleMathBox.height,
         element_width_delta: styleElementBox.width - noStyleElementBox.width,
diff --git a/tests/wpt/web-platform-tests/websockets/handlers/delayed-passive-close_wsh.py b/tests/wpt/web-platform-tests/websockets/handlers/delayed-passive-close_wsh.py
new file mode 100755
index 00000000000..7d55b88ecc6
--- /dev/null
+++ b/tests/wpt/web-platform-tests/websockets/handlers/delayed-passive-close_wsh.py
@@ -0,0 +1,27 @@
+#!/usr/bin/python
+from mod_pywebsocket import common
+import time
+
+def web_socket_do_extra_handshake(request):
+    pass
+
+
+def web_socket_transfer_data(request):
+    # Wait for the close frame to arrive.
+    request.ws_stream.receive_message()
+
+
+def web_socket_passive_closing_handshake(request):
+    # Echo close status code and reason
+    code, reason = request.ws_close_code, request.ws_close_reason
+
+    # No status received is a reserved pseudo code representing an empty code,
+    # so echo back an empty code in this case.
+    if code == common.STATUS_NO_STATUS_RECEIVED:
+        code = None
+
+    # The browser may error the connection if the closing handshake takes too
+    # long, but hopefully no browser will have a timeout this short.
+    time.sleep(1)
+
+    return code, reason
diff --git a/tests/wpt/web-platform-tests/websockets/stream-tentative/README.md b/tests/wpt/web-platform-tests/websockets/stream-tentative/README.md
new file mode 100644
index 00000000000..6c515887741
--- /dev/null
+++ b/tests/wpt/web-platform-tests/websockets/stream-tentative/README.md
@@ -0,0 +1,9 @@
+# WebSocketStream tentative tests
+
+Tests in this directory are for the proposed "WebSocketStream" interface to the
+WebSocket protocol. This is not yet standardised and browsers should not be
+expected to pass these tests.
+
+See the explainer at
+https://github.com/ricea/websocketstream-explainer/blob/master/README.md for
+more information about the API.
diff --git a/tests/wpt/web-platform-tests/websockets/stream-tentative/close.any.js b/tests/wpt/web-platform-tests/websockets/stream-tentative/close.any.js
new file mode 100644
index 00000000000..ddcdc2b2c8f
--- /dev/null
+++ b/tests/wpt/web-platform-tests/websockets/stream-tentative/close.any.js
@@ -0,0 +1,184 @@
+// META: script=../websocket.sub.js
+// META: script=resources/url-constants.js
+// META: global=window,worker
+
+promise_test(async () => {
+  const wss = new WebSocketStream(ECHOURL);
+  await wss.connection;
+  wss.close({code: 3456, reason: 'pizza'});
+  const { code, reason } = await wss.closed;
+  assert_equals(code, 3456, 'code should match');
+  assert_equals(reason, 'pizza', 'reason should match');
+}, 'close code should be sent to server and reflected back');
+
+promise_test(async () => {
+  const wss = new WebSocketStream(ECHOURL);
+  await wss.connection;
+  wss.close();
+  const { code, reason } = await wss.closed;
+  assert_equals(code, 1005, 'code should be unset');
+  assert_equals(reason, '', 'reason should be empty');
+}, 'no close argument should send empty Close frame');
+
+promise_test(async () => {
+  const wss = new WebSocketStream(ECHOURL);
+  await wss.connection;
+  wss.close({});
+  const { code, reason } = await wss.closed;
+  assert_equals(code, 1005, 'code should be unset');
+  assert_equals(reason, '', 'reason should be empty');
+}, 'unspecified close code should send empty Close frame');
+
+promise_test(async () => {
+  const wss = new WebSocketStream(ECHOURL);
+  await wss.connection;
+  wss.close({reason: ''});
+  const { code, reason } = await wss.closed;
+  assert_equals(code, 1005, 'code should be unset');
+  assert_equals(reason, '', 'reason should be empty');
+}, 'unspecified close code with empty reason should send empty Close frame');
+
+promise_test(async () => {
+  const wss = new WebSocketStream(ECHOURL);
+  await wss.connection;
+  wss.close({reason: 'non-empty'});
+  const { code, reason } = await wss.closed;
+  assert_equals(code, 1000, 'code should be set');
+  assert_equals(reason, 'non-empty', 'reason should match');
+}, 'unspecified close code with non-empty reason should set code to 1000');
+
+promise_test(async () => {
+  const wss = new WebSocketStream(ECHOURL);
+  await wss.connection;
+  assert_throws(new TypeError(), () => wss.close(true),
+                'close should throw a TypeError');
+}, 'close(true) should throw a TypeError');
+
+promise_test(async () => {
+  const wss = new WebSocketStream(ECHOURL);
+  await wss.connection;
+  const reason = '.'.repeat(124);
+  assert_throws('SyntaxError', () => wss.close({ reason }),
+                'close should throw a TypeError');
+}, 'close() with an overlong reason should throw');
+
+promise_test(t => {
+  const wss = new WebSocketStream(ECHOURL);
+  wss.close();
+  return Promise.all([
+    promise_rejects(t, 'NetworkError', wss.connection,
+                    'connection promise should reject'),
+    promise_rejects(t, 'NetworkError', wss.closed,
+                    'closed promise should reject')]);
+}, 'close during handshake should work');
+
+for (const invalidCode of [999, 1001, 2999, 5000]) {
+  promise_test(async () => {
+    const wss = new WebSocketStream(ECHOURL);
+    await wss.connection;
+    assert_throws('InvalidAccessError', () => wss.close({ code: invalidCode }),
+                  'close should throw a TypeError');
+  }, `close() with invalid code ${invalidCode} should throw`);
+}
+
+promise_test(async () => {
+  const wss = new WebSocketStream(ECHOURL);
+  const { writable } = await wss.connection;
+  writable.getWriter().close();
+  const { code, reason } = await wss.closed;
+  assert_equals(code, 1005, 'code should be unset');
+  assert_equals(reason, '', 'reason should be empty');
+}, 'closing the writable should result in a clean close');
+
+promise_test(async () => {
+  const wss = new WebSocketStream(`${BASEURL}/delayed-passive-close`);
+  const { writable } = await wss.connection;
+  const startTime = performance.now();
+  await writable.getWriter().close();
+  const elapsed = performance.now() - startTime;
+  const jitterAllowance = 100;
+  assert_greater_than_equal(elapsed, 1000 - jitterAllowance,
+                            'one second should have elapsed');
+}, 'writer close() promise should not resolve until handshake completes');
+
+const abortOrCancel = [
+  {
+    method: 'abort',
+    voweling: 'aborting',
+    stream: 'writable',
+  },
+  {
+    method: 'cancel',
+    voweling: 'canceling',
+    stream: 'readable',
+  },
+];
+
+for (const { method, voweling, stream } of abortOrCancel) {
+
+  promise_test(async () => {
+    const wss = new WebSocketStream(ECHOURL);
+    const info = await wss.connection;
+    info[stream][method]();
+    const { code, reason } = await wss.closed;
+    assert_equals(code, 1005, 'code should be unset');
+    assert_equals(reason, '', 'reason should be empty');
+  }, `${voweling} the ${stream} should result in a clean close`);
+
+  promise_test(async () => {
+    const wss = new WebSocketStream(ECHOURL);
+    const info = await wss.connection;
+    info[stream][method]({ code: 3333 });
+    const { code, reason } = await wss.closed;
+    assert_equals(code, 3333, 'code should be used');
+    assert_equals(reason, '', 'reason should be empty');
+  }, `${voweling} the ${stream} with a code should send that code`);
+
+  promise_test(async () => {
+    const wss = new WebSocketStream(ECHOURL);
+    const info = await wss.connection;
+    info[stream][method]({ code: 3456, reason: 'set' });
+    const { code, reason } = await wss.closed;
+    assert_equals(code, 3456, 'code should be used');
+    assert_equals(reason, 'set', 'reason should be used');
+  }, `${voweling} the ${stream} with a code and reason should use them`);
+
+  promise_test(async () => {
+    const wss = new WebSocketStream(ECHOURL);
+    const info = await wss.connection;
+    info[stream][method]({ reason: 'specified' });
+    const { code, reason } = await wss.closed;
+    assert_equals(code, 1005, 'code should be unset');
+    assert_equals(reason, '', 'reason should be empty');
+  }, `${voweling} the ${stream} with a reason but no code should be ignored`);
+
+  promise_test(async () => {
+    const wss = new WebSocketStream(ECHOURL);
+    const info = await wss.connection;
+    info[stream][method]({ code: 999 });
+    const { code, reason } = await wss.closed;
+    assert_equals(code, 1005, 'code should be unset');
+    assert_equals(reason, '', 'reason should be empty');
+  }, `${voweling} the ${stream} with an invalid code should be ignored`);
+
+  promise_test(async () => {
+    const wss = new WebSocketStream(ECHOURL);
+    const info = await wss.connection;
+    info[stream][method]({ code: 1000, reason: 'x'.repeat(128) });
+    const { code, reason } = await wss.closed;
+    assert_equals(code, 1005, 'code should be unset');
+    assert_equals(reason, '', 'reason should be empty');
+  }, `${voweling} the ${stream} with an invalid reason should be ignored`);
+
+  // DOMExceptions are only ignored because the |code| attribute is too small to
+  // be a valid WebSocket close code.
+  promise_test(async () => {
+    const wss = new WebSocketStream(ECHOURL);
+    const info = await wss.connection;
+    info[stream][method](new DOMException('yes', 'DataCloneError'));
+    const { code, reason } = await wss.closed;
+    assert_equals(code, 1005, 'code should be unset');
+    assert_equals(reason, '', 'reason should be empty');
+  }, `${voweling} the ${stream} with a DOMException should be ignored`);
+
+}
diff --git a/tests/wpt/web-platform-tests/websockets/stream-tentative/constructor.any.js b/tests/wpt/web-platform-tests/websockets/stream-tentative/constructor.any.js
new file mode 100644
index 00000000000..12a24f25f2c
--- /dev/null
+++ b/tests/wpt/web-platform-tests/websockets/stream-tentative/constructor.any.js
@@ -0,0 +1,66 @@
+// META: script=../websocket.sub.js
+// META: script=resources/url-constants.js
+// META: global=window,worker
+
+test(() => {
+  assert_throws(new TypeError(), () => new WebSocketStream(),
+                'constructor should throw');
+}, 'constructing with no URL should throw');
+
+test(() => {
+  assert_throws(new SyntaxError(), () => new WebSocketStream('invalid:'),
+                "constructor should throw");
+}, 'constructing with an invalid URL should throw');
+
+test(() => {
+  assert_throws(new TypeError(),
+                () => new WebSocketStream(`${BASEURL}/`, true),
+                "constructor should throw");
+}, 'constructing with invalid options should throw');
+
+test(() => {
+  assert_throws(new TypeError(),
+                () => new WebSocketStream(`${BASEURL}/`, {protocols: 'hi'}),
+                "constructor should throw");
+}, 'protocols should be required to be a list');
+
+promise_test(async () => {
+  const wss = new WebSocketStream(ECHOURL);
+  await wss.connection;
+  assert_equals(wss.url, ECHOURL, 'url should match');
+  wss.close();
+}, 'constructing with a valid URL should work');
+
+promise_test(async () => {
+  const wss = new WebSocketStream(`${BASEURL}/protocol_array`,
+                                  {protocols: ['alpha', 'beta']});
+  const { readable, protocol } = await wss.connection;
+  assert_equals(protocol, 'alpha', 'protocol should be right');
+  const reader = readable.getReader();
+  const { value, done } = await reader.read();
+  assert_equals(value, 'alpha', 'message contents should match');
+  wss.close();
+}, 'setting a protocol in the constructor should work');
+
+promise_test(t => {
+  const wss = new WebSocketStream(`${BASEURL}/404`);
+  return Promise.all([
+    promise_rejects(t, 'NetworkError', wss.connection,
+                    'connection should reject'),
+    promise_rejects(t, 'NetworkError', wss.closed, 'closed should reject')
+  ]);
+}, 'connection failure should reject the promises');
+
+promise_test(async () => {
+  const wss = new WebSocketStream(ECHOURL);
+  const { readable, writable, protocol, extensions} = await wss.connection;
+  // Verify that |readable| really is a ReadableStream using the getReader()
+  // brand check. If it doesn't throw the test passes.
+  ReadableStream.prototype.getReader.call(readable);
+  // Verify that |writable| really is a WritableStream using the getWriter()
+  // brand check. If it doesn't throw the test passes.
+  WritableStream.prototype.getWriter.call(writable);
+  assert_equals(typeof protocol, 'string', 'protocol should be a string');
+  assert_equals(typeof extensions, 'string', 'extensions should be a string');
+  wss.close();
+}, 'wss.connection should resolve to the right types');
diff --git a/tests/wpt/web-platform-tests/websockets/stream-tentative/resources/url-constants.js b/tests/wpt/web-platform-tests/websockets/stream-tentative/resources/url-constants.js
new file mode 100644
index 00000000000..9bc77aa3264
--- /dev/null
+++ b/tests/wpt/web-platform-tests/websockets/stream-tentative/resources/url-constants.js
@@ -0,0 +1,11 @@
+// The file including this must also include ../websocket.sub.js to pick up the
+// necessary constants.
+
+const {BASEURL, ECHOURL} = (() => {
+  const isSecure = location.href.match(/^https:/);
+  const scheme = isSecure ? "wss:" : "ws:";
+  const port = isSecure ? __SECURE__PORT : __PORT;
+  const BASEURL = `${scheme}//${__SERVER__NAME}:${port}`;
+  const ECHOURL = `${BASEURL}/echo`;
+  return {BASEURL, ECHOURL};
+})();