From 54c2e735e60b76e0c76ff035702c749fa9e77fd1 Mon Sep 17 00:00:00 2001
From: WPT Sync Bot <josh+wptsync@joshmatthews.net>
Date: Thu, 7 Jan 2021 08:21:05 +0000
Subject: [PATCH] Update web-platform-tests to revision
 313f99aafa6620894b8d7a7acc6e015b9548e179

---
 .../CSS2/floats/hit-test-floats-002.html.ini  |   4 -
 .../CSS2/floats/hit-test-floats-004.html.ini  |   4 -
 .../hit-test-anonymous-block.html.ini         |   4 -
 .../transform-scale-hittest.html.ini          |   3 -
 .../fetch/content-type/response.window.js.ini |  15 +-
 .../nosniff/parsing-nosniff.window.js.ini     |   6 -
 .../traverse_the_history_4.html.ini           |   4 +
 .../traverse_the_history_5.html.ini           |   4 +
 ...ndbox-inherited-from-required-csp.html.ini |  19 +++
 .../embedded-opener-remove-frame.html.ini     |   1 +
 .../iframe_sandbox_popups_escaping-3.html.ini |   3 +-
 ...rame_sandbox_popups_nonescaping-3.html.ini |   3 +-
 .../form-double-submit-2.html.ini             |   4 -
 .../form-double-submit.html.ini               |   4 -
 .../textfieldselection/select-event.html.ini  |  92 ++++++-----
 .../activation-behavior.window.js.ini         |   4 +
 .../empty-assertion-clause.html.ini           |   5 +
 .../invalid-type-assertion-error.html.ini     |   4 +
 .../unsupported-assertion.html.ini            |   5 +
 .../realtimeanalyser-fft-scaling.html.ini     |   1 +
 .../sub-sample-buffer-stitching.html.ini      |   3 +
 .../webmessaging/without-ports/017.html.ini   |   5 -
 .../Worker/Worker-constructor.html.ini        |   2 -
 tests/wpt/metadata/MANIFEST.json              | 152 ++++++++++++++++--
 .../CSS2/floats/hit-test-floats-002.html.ini  |   4 -
 .../CSS2/floats/hit-test-floats-004.html.ini  |   4 -
 .../hit-test-anonymous-block.html.ini         |   4 -
 .../transform-scale-hittest.html.ini          |   3 -
 .../fetch/content-type/response.window.js.ini |  15 +-
 .../nosniff/parsing-nosniff.window.js.ini     |   6 -
 .../traverse_the_history_4.html.ini           |   4 +
 .../traverse_the_history_5.html.ini           |   4 +
 ...ndbox-inherited-from-required-csp.html.ini |  19 +++
 .../embedded-opener-remove-frame.html.ini     |   1 +
 .../iframe_sandbox_popups_escaping-3.html.ini |   3 +-
 ...rame_sandbox_popups_nonescaping-3.html.ini |   3 +-
 .../form-double-submit-2.html.ini             |   4 -
 .../form-double-submit.html.ini               |   4 -
 .../textfieldselection/select-event.html.ini  |  92 ++++++-----
 .../activation-behavior.window.js.ini         |   4 +
 .../empty-assertion-clause.html.ini           |   5 +
 .../invalid-type-assertion-error.html.ini     |   4 +
 .../unsupported-assertion.html.ini            |   5 +
 .../realtimeanalyser-fft-scaling.html.ini     |   1 +
 .../sub-sample-buffer-stitching.html.ini      |   3 +
 .../webmessaging/without-ports/017.html.ini   |   5 -
 .../Worker/Worker-constructor.html.ini        |   2 -
 .../out-of-flow-in-multicolumn-012.html       |  39 +++++
 .../content-visibility-080.html               |  31 ++++
 .../css/css-grid/support/grid-child-utils.js  |   2 +-
 .../aspect-ratio/flex-aspect-ratio-025.html   |  73 +++++++++
 .../aspect-ratio/flex-aspect-ratio-026.html   |  77 +++++++++
 ...ucts-custom-element-in-document-write.html |  15 +-
 .../sandbox-inherited-from-required-csp.html  | 141 ++++++++++++++++
 .../empty-assertion-clause.html               |  19 +++
 .../empty-assertion-clause.js                 |   2 +
 .../import-assertions/empty-type-assertion.js |   2 +
 .../import-assertions/hello.js                |   1 +
 .../invalid-type-assertion-error.html         |  24 +++
 .../invalid-type-assertion.js                 |   2 +
 .../unsupported-assertion.html                |  19 +++
 .../unsupported-assertion.js                  |   2 +
 .../same-document-with-document-root.html     |  60 +++++++
 ...interevent_auxclick_is_a_pointerevent.html |   2 +-
 .../pointerevent_click_is_a_pointerevent.html |   2 +-
 .../nested-blob-url-workers.https.html        |  42 +++++
 .../resources/create-blob-url-worker.js       |  22 +++
 ...d-blob-url-worker-created-from-worker.html |  16 ++
 .../resources/nested-blob-url-workers.html    |  38 +++++
 ...d-worker-created-from-blob-url-worker.html |  33 ++++
 .../resources/postmessage-fetched-text.js     |   5 +
 ...atedEnumeration-SVGFECompositeElement.html |  14 +-
 .../ci/azure/safari-technology-preview.rb     |   8 +-
 .../web-platform-tests/tools/manifest/log.py  |   7 +-
 .../tools/manifest/manifest.py                |  27 +++-
 .../tools/manifest/update.py                  |   7 +-
 .../xhr/event-timeout.any.js                  |   2 +-
 77 files changed, 1067 insertions(+), 217 deletions(-)
 delete mode 100644 tests/wpt/metadata-layout-2020/css/CSS2/floats/hit-test-floats-002.html.ini
 delete mode 100644 tests/wpt/metadata-layout-2020/css/CSS2/floats/hit-test-floats-004.html.ini
 delete mode 100644 tests/wpt/metadata-layout-2020/css/CSS2/normal-flow/hit-test-anonymous-block.html.ini
 create mode 100644 tests/wpt/metadata-layout-2020/html/browsers/history/the-history-interface/traverse_the_history_4.html.ini
 create mode 100644 tests/wpt/metadata-layout-2020/html/browsers/history/the-history-interface/traverse_the_history_5.html.ini
 create mode 100644 tests/wpt/metadata-layout-2020/html/browsers/sandboxing/sandbox-inherited-from-required-csp.html.ini
 delete mode 100644 tests/wpt/metadata-layout-2020/html/semantics/forms/form-submission-0/form-double-submit-2.html.ini
 delete mode 100644 tests/wpt/metadata-layout-2020/html/semantics/forms/form-submission-0/form-double-submit.html.ini
 create mode 100644 tests/wpt/metadata-layout-2020/html/semantics/links/following-hyperlinks/activation-behavior.window.js.ini
 create mode 100644 tests/wpt/metadata-layout-2020/html/semantics/scripting-1/the-script-element/import-assertions/empty-assertion-clause.html.ini
 create mode 100644 tests/wpt/metadata-layout-2020/html/semantics/scripting-1/the-script-element/import-assertions/invalid-type-assertion-error.html.ini
 create mode 100644 tests/wpt/metadata-layout-2020/html/semantics/scripting-1/the-script-element/import-assertions/unsupported-assertion.html.ini
 delete mode 100644 tests/wpt/metadata-layout-2020/webmessaging/without-ports/017.html.ini
 delete mode 100644 tests/wpt/metadata-layout-2020/workers/constructors/Worker/Worker-constructor.html.ini
 delete mode 100644 tests/wpt/metadata/css/CSS2/floats/hit-test-floats-002.html.ini
 delete mode 100644 tests/wpt/metadata/css/CSS2/floats/hit-test-floats-004.html.ini
 delete mode 100644 tests/wpt/metadata/css/CSS2/normal-flow/hit-test-anonymous-block.html.ini
 create mode 100644 tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_4.html.ini
 create mode 100644 tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_5.html.ini
 create mode 100644 tests/wpt/metadata/html/browsers/sandboxing/sandbox-inherited-from-required-csp.html.ini
 delete mode 100644 tests/wpt/metadata/html/semantics/forms/form-submission-0/form-double-submit-2.html.ini
 delete mode 100644 tests/wpt/metadata/html/semantics/forms/form-submission-0/form-double-submit.html.ini
 create mode 100644 tests/wpt/metadata/html/semantics/links/following-hyperlinks/activation-behavior.window.js.ini
 create mode 100644 tests/wpt/metadata/html/semantics/scripting-1/the-script-element/import-assertions/empty-assertion-clause.html.ini
 create mode 100644 tests/wpt/metadata/html/semantics/scripting-1/the-script-element/import-assertions/invalid-type-assertion-error.html.ini
 create mode 100644 tests/wpt/metadata/html/semantics/scripting-1/the-script-element/import-assertions/unsupported-assertion.html.ini
 delete mode 100644 tests/wpt/metadata/webmessaging/without-ports/017.html.ini
 delete mode 100644 tests/wpt/metadata/workers/constructors/Worker/Worker-constructor.html.ini
 create mode 100644 tests/wpt/web-platform-tests/css/css-break/out-of-flow-in-multicolumn-012.html
 create mode 100644 tests/wpt/web-platform-tests/css/css-contain/content-visibility/content-visibility-080.html
 create mode 100644 tests/wpt/web-platform-tests/css/css-sizing/aspect-ratio/flex-aspect-ratio-025.html
 create mode 100644 tests/wpt/web-platform-tests/css/css-sizing/aspect-ratio/flex-aspect-ratio-026.html
 create mode 100644 tests/wpt/web-platform-tests/html/browsers/sandboxing/sandbox-inherited-from-required-csp.html
 create mode 100644 tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/import-assertions/empty-assertion-clause.html
 create mode 100644 tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/import-assertions/empty-assertion-clause.js
 create mode 100644 tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/import-assertions/empty-type-assertion.js
 create mode 100644 tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/import-assertions/hello.js
 create mode 100644 tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/import-assertions/invalid-type-assertion-error.html
 create mode 100644 tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/import-assertions/invalid-type-assertion.js
 create mode 100644 tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/import-assertions/unsupported-assertion.html
 create mode 100644 tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/import-assertions/unsupported-assertion.js
 create mode 100644 tests/wpt/web-platform-tests/intersection-observer/same-document-with-document-root.html
 create mode 100644 tests/wpt/web-platform-tests/service-workers/service-worker/nested-blob-url-workers.https.html
 create mode 100644 tests/wpt/web-platform-tests/service-workers/service-worker/resources/create-blob-url-worker.js
 create mode 100644 tests/wpt/web-platform-tests/service-workers/service-worker/resources/nested-blob-url-worker-created-from-worker.html
 create mode 100644 tests/wpt/web-platform-tests/service-workers/service-worker/resources/nested-blob-url-workers.html
 create mode 100644 tests/wpt/web-platform-tests/service-workers/service-worker/resources/nested-worker-created-from-blob-url-worker.html
 create mode 100644 tests/wpt/web-platform-tests/service-workers/service-worker/resources/postmessage-fetched-text.js

diff --git a/tests/wpt/metadata-layout-2020/css/CSS2/floats/hit-test-floats-002.html.ini b/tests/wpt/metadata-layout-2020/css/CSS2/floats/hit-test-floats-002.html.ini
deleted file mode 100644
index f64b45fea6b..00000000000
--- a/tests/wpt/metadata-layout-2020/css/CSS2/floats/hit-test-floats-002.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[hit-test-floats-002.html]
-  [Hit test float]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata-layout-2020/css/CSS2/floats/hit-test-floats-004.html.ini b/tests/wpt/metadata-layout-2020/css/CSS2/floats/hit-test-floats-004.html.ini
deleted file mode 100644
index 4bfb0c2053a..00000000000
--- a/tests/wpt/metadata-layout-2020/css/CSS2/floats/hit-test-floats-004.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[hit-test-floats-004.html]
-  [Miss float below something else]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata-layout-2020/css/CSS2/normal-flow/hit-test-anonymous-block.html.ini b/tests/wpt/metadata-layout-2020/css/CSS2/normal-flow/hit-test-anonymous-block.html.ini
deleted file mode 100644
index 8efb7024ae4..00000000000
--- a/tests/wpt/metadata-layout-2020/css/CSS2/normal-flow/hit-test-anonymous-block.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[hit-test-anonymous-block.html]
-  [Hit test beside line of text inside anonymous block]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata-layout-2020/css/css-transforms/transform-scale-hittest.html.ini b/tests/wpt/metadata-layout-2020/css/css-transforms/transform-scale-hittest.html.ini
index f8e7e539aae..4a1e8110f6f 100644
--- a/tests/wpt/metadata-layout-2020/css/css-transforms/transform-scale-hittest.html.ini
+++ b/tests/wpt/metadata-layout-2020/css/css-transforms/transform-scale-hittest.html.ini
@@ -2,6 +2,3 @@
   [Hit test intersecting scaled box]
     expected: FAIL
 
-  [Hit test within unscaled box]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata-layout-2020/fetch/content-type/response.window.js.ini b/tests/wpt/metadata-layout-2020/fetch/content-type/response.window.js.ini
index c199782c775..dfcd4b97189 100644
--- a/tests/wpt/metadata-layout-2020/fetch/content-type/response.window.js.ini
+++ b/tests/wpt/metadata-layout-2020/fetch/content-type/response.window.js.ini
@@ -318,15 +318,12 @@
   [<iframe>: combined response Content-Type: text/html;charset=gbk text/plain text/html]
     expected: FAIL
 
-  [<iframe>: separate response Content-Type: text/html */*]
-    expected: FAIL
-
-  [<iframe>: combined response Content-Type: text/html */*]
-    expected: FAIL
-
-  [<iframe>: combined response Content-Type: text/html;x=" text/plain]
-    expected: FAIL
-
   [<iframe>: separate response Content-Type: text/plain */*;charset=gbk]
     expected: FAIL
 
+  [<iframe>: separate response Content-Type: text/html */*;charset=gbk]
+    expected: FAIL
+
+  [<iframe>: combined response Content-Type: text/plain;charset=gbk text/html]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata-layout-2020/fetch/nosniff/parsing-nosniff.window.js.ini b/tests/wpt/metadata-layout-2020/fetch/nosniff/parsing-nosniff.window.js.ini
index 1c62485a210..30e1b851fd4 100644
--- a/tests/wpt/metadata-layout-2020/fetch/nosniff/parsing-nosniff.window.js.ini
+++ b/tests/wpt/metadata-layout-2020/fetch/nosniff/parsing-nosniff.window.js.ini
@@ -11,9 +11,3 @@
   [X-Content-Type-Options%3A%20nosniff%2C%2C%40%23%24%23%25%25%26%5E%26%5E*()()11!]
     expected: FAIL
 
-  [X-Content-Type-Options%3A%20%2Cnosniff]
-    expected: FAIL
-
-  [Content-Type-Options%3A%20nosniff]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata-layout-2020/html/browsers/history/the-history-interface/traverse_the_history_4.html.ini b/tests/wpt/metadata-layout-2020/html/browsers/history/the-history-interface/traverse_the_history_4.html.ini
new file mode 100644
index 00000000000..385376c7321
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/html/browsers/history/the-history-interface/traverse_the_history_4.html.ini
@@ -0,0 +1,4 @@
+[traverse_the_history_4.html]
+  [Multiple history traversals, last would be aborted]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata-layout-2020/html/browsers/history/the-history-interface/traverse_the_history_5.html.ini b/tests/wpt/metadata-layout-2020/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-layout-2020/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-layout-2020/html/browsers/sandboxing/sandbox-inherited-from-required-csp.html.ini b/tests/wpt/metadata-layout-2020/html/browsers/sandboxing/sandbox-inherited-from-required-csp.html.ini
new file mode 100644
index 00000000000..7c1e4f9fdeb
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/html/browsers/sandboxing/sandbox-inherited-from-required-csp.html.ini
@@ -0,0 +1,19 @@
+[sandbox-inherited-from-required-csp.html]
+  [initial empty document]
+    expected: FAIL
+
+  [same-origin]
+    expected: FAIL
+
+  [blob URL]
+    expected: FAIL
+
+  [cross-origin]
+    expected: FAIL
+
+  [about:blank]
+    expected: FAIL
+
+  [srcdoc]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata-layout-2020/html/browsers/windows/embedded-opener-remove-frame.html.ini b/tests/wpt/metadata-layout-2020/html/browsers/windows/embedded-opener-remove-frame.html.ini
index 9a85a905394..8e2a63e3b7f 100644
--- a/tests/wpt/metadata-layout-2020/html/browsers/windows/embedded-opener-remove-frame.html.ini
+++ b/tests/wpt/metadata-layout-2020/html/browsers/windows/embedded-opener-remove-frame.html.ini
@@ -1,4 +1,5 @@
 [embedded-opener-remove-frame.html]
+  expected: CRASH
   [opener of discarded nested browsing context]
     expected: FAIL
 
diff --git a/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-3.html.ini b/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-3.html.ini
index 295031c1812..338d283eb0e 100644
--- a/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-3.html.ini
+++ b/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-3.html.ini
@@ -1,5 +1,4 @@
 [iframe_sandbox_popups_escaping-3.html]
-  expected: TIMEOUT
   [Check that popups from a sandboxed iframe escape the sandbox if\n       allow-popups-to-escape-sandbox is used]
-    expected: TIMEOUT
+    expected: FAIL
 
diff --git a/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-3.html.ini b/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-3.html.ini
index f4f994c5d6f..7a36937927c 100644
--- a/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-3.html.ini
+++ b/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-3.html.ini
@@ -1,5 +1,4 @@
 [iframe_sandbox_popups_nonescaping-3.html]
-  expected: TIMEOUT
   [Check that popups from a sandboxed iframe do not escape the sandbox]
-    expected: NOTRUN
+    expected: FAIL
 
diff --git a/tests/wpt/metadata-layout-2020/html/semantics/forms/form-submission-0/form-double-submit-2.html.ini b/tests/wpt/metadata-layout-2020/html/semantics/forms/form-submission-0/form-double-submit-2.html.ini
deleted file mode 100644
index 633a99517d3..00000000000
--- a/tests/wpt/metadata-layout-2020/html/semantics/forms/form-submission-0/form-double-submit-2.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[form-double-submit-2.html]
-  [preventDefault should allow onclick submit() to succeed]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata-layout-2020/html/semantics/forms/form-submission-0/form-double-submit.html.ini b/tests/wpt/metadata-layout-2020/html/semantics/forms/form-submission-0/form-double-submit.html.ini
deleted file mode 100644
index b193c33c2b6..00000000000
--- a/tests/wpt/metadata-layout-2020/html/semantics/forms/form-submission-0/form-double-submit.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[form-double-submit.html]
-  [default submit action should supersede onclick submit()]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata-layout-2020/html/semantics/forms/textfieldselection/select-event.html.ini b/tests/wpt/metadata-layout-2020/html/semantics/forms/textfieldselection/select-event.html.ini
index fd42ca23672..fad5c710dc4 100644
--- a/tests/wpt/metadata-layout-2020/html/semantics/forms/textfieldselection/select-event.html.ini
+++ b/tests/wpt/metadata-layout-2020/html/semantics/forms/textfieldselection/select-event.html.ini
@@ -1,28 +1,7 @@
 [select-event.html]
-  [input type url: setSelectionRange() a second time (must not fire select)]
-    expected: FAIL
-
-  [input type tel: select() a second time (must not fire select)]
-    expected: FAIL
-
-  [input type password: selectionDirection a second time (must not fire select)]
-    expected: FAIL
-
-  [input type url: select() a second time (must not fire select)]
-    expected: FAIL
-
-  [input type text: setRangeText() a second time (must not fire select)]
-    expected: FAIL
-
-  [input type password: select() a second time (must not fire select)]
-    expected: FAIL
-
   [textarea: selectionDirection a second time (must not fire select)]
     expected: FAIL
 
-  [input type password: selectionEnd out of range a second time (must not fire select)]
-    expected: FAIL
-
   [input type tel: setSelectionRange out of range a second time (must not fire select)]
     expected: FAIL
 
@@ -38,33 +17,66 @@
   [input type url: selectionStart out of range a second time (must not fire select)]
     expected: FAIL
 
-  [textarea: setRangeText() a second time (must not fire select)]
-    expected: FAIL
-
-  [input type tel: setSelectionRange() a second time (must not fire select)]
-    expected: FAIL
-
-  [input type url: selectionDirection a second time (must not fire select)]
-    expected: FAIL
-
-  [input type tel: selectionEnd a second time (must not fire select)]
-    expected: FAIL
-
   [textarea: selectionStart out of range a second time (must not fire select)]
     expected: FAIL
 
-  [input type text: selectionStart out of range a second time (must not fire select)]
-    expected: FAIL
-
-  [input type text: selectionStart a second time (must not fire select)]
-    expected: FAIL
-
   [input type url: selectionStart a second time (must not fire select)]
     expected: FAIL
 
   [input type search: selectionStart a second time (must not fire select)]
     expected: FAIL
 
-  [input type url: setSelectionRange out of range a second time (must not fire select)]
+  [textarea: selectionEnd a second time (must not fire select)]
+    expected: FAIL
+
+  [input type tel: selectionEnd out of range a second time (must not fire select)]
+    expected: FAIL
+
+  [input type text: selectionEnd a second time (must not fire select)]
+    expected: FAIL
+
+  [input type tel: setRangeText() a second time (must not fire select)]
+    expected: FAIL
+
+  [input type url: selectionEnd a second time (must not fire select)]
+    expected: FAIL
+
+  [input type password: setSelectionRange() a second time (must not fire select)]
+    expected: FAIL
+
+  [input type text: setSelectionRange() a second time (must not fire select)]
+    expected: FAIL
+
+  [input type text: setSelectionRange out of range a second time (must not fire select)]
+    expected: FAIL
+
+  [input type text: selectionEnd out of range a second time (must not fire select)]
+    expected: FAIL
+
+  [input type tel: selectionDirection a second time (must not fire select)]
+    expected: FAIL
+
+  [input type search: selectionEnd a second time (must not fire select)]
+    expected: FAIL
+
+  [input type password: selectionEnd a second time (must not fire select)]
+    expected: FAIL
+
+  [input type text: selectionDirection a second time (must not fire select)]
+    expected: FAIL
+
+  [textarea: setSelectionRange out of range a second time (must not fire select)]
+    expected: FAIL
+
+  [input type url: setRangeText() a second time (must not fire select)]
+    expected: FAIL
+
+  [input type password: selectionStart out of range a second time (must not fire select)]
+    expected: FAIL
+
+  [textarea: selectionEnd out of range a second time (must not fire select)]
+    expected: FAIL
+
+  [input type tel: selectionStart a second time (must not fire select)]
     expected: FAIL
 
diff --git a/tests/wpt/metadata-layout-2020/html/semantics/links/following-hyperlinks/activation-behavior.window.js.ini b/tests/wpt/metadata-layout-2020/html/semantics/links/following-hyperlinks/activation-behavior.window.js.ini
new file mode 100644
index 00000000000..ca460dc6867
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/html/semantics/links/following-hyperlinks/activation-behavior.window.js.ini
@@ -0,0 +1,4 @@
+[activation-behavior.window.html]
+  [<a> that is not connected should be followed]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata-layout-2020/html/semantics/scripting-1/the-script-element/import-assertions/empty-assertion-clause.html.ini b/tests/wpt/metadata-layout-2020/html/semantics/scripting-1/the-script-element/import-assertions/empty-assertion-clause.html.ini
new file mode 100644
index 00000000000..77f56ecc207
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/html/semantics/scripting-1/the-script-element/import-assertions/empty-assertion-clause.html.ini
@@ -0,0 +1,5 @@
+[empty-assertion-clause.html]
+  expected: ERROR
+  [Test that no error occurs when an empty import assertion clause is provided.]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata-layout-2020/html/semantics/scripting-1/the-script-element/import-assertions/invalid-type-assertion-error.html.ini b/tests/wpt/metadata-layout-2020/html/semantics/scripting-1/the-script-element/import-assertions/invalid-type-assertion-error.html.ini
new file mode 100644
index 00000000000..e68cd55a9d4
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/html/semantics/scripting-1/the-script-element/import-assertions/invalid-type-assertion-error.html.ini
@@ -0,0 +1,4 @@
+[invalid-type-assertion-error.html]
+  [Test that invalid module type assertion leads to TypeError on window.]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata-layout-2020/html/semantics/scripting-1/the-script-element/import-assertions/unsupported-assertion.html.ini b/tests/wpt/metadata-layout-2020/html/semantics/scripting-1/the-script-element/import-assertions/unsupported-assertion.html.ini
new file mode 100644
index 00000000000..72af29b4be8
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/html/semantics/scripting-1/the-script-element/import-assertions/unsupported-assertion.html.ini
@@ -0,0 +1,5 @@
+[unsupported-assertion.html]
+  expected: ERROR
+  [Test that no error occurs when an unsupported import assertion is provided.]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata-layout-2020/webaudio/the-audio-api/the-analysernode-interface/realtimeanalyser-fft-scaling.html.ini b/tests/wpt/metadata-layout-2020/webaudio/the-audio-api/the-analysernode-interface/realtimeanalyser-fft-scaling.html.ini
index 66bd350083b..a56bad443a2 100644
--- a/tests/wpt/metadata-layout-2020/webaudio/the-audio-api/the-analysernode-interface/realtimeanalyser-fft-scaling.html.ini
+++ b/tests/wpt/metadata-layout-2020/webaudio/the-audio-api/the-analysernode-interface/realtimeanalyser-fft-scaling.html.ini
@@ -1,4 +1,5 @@
 [realtimeanalyser-fft-scaling.html]
+  expected: TIMEOUT
   [X 2048-point FFT peak position is not equal to 64. Got 0.]
     expected: FAIL
 
diff --git a/tests/wpt/metadata-layout-2020/webaudio/the-audio-api/the-audiobuffersourcenode-interface/sub-sample-buffer-stitching.html.ini b/tests/wpt/metadata-layout-2020/webaudio/the-audio-api/the-audiobuffersourcenode-interface/sub-sample-buffer-stitching.html.ini
index a5fb3725db8..aa657649b45 100644
--- a/tests/wpt/metadata-layout-2020/webaudio/the-audio-api/the-audiobuffersourcenode-interface/sub-sample-buffer-stitching.html.ini
+++ b/tests/wpt/metadata-layout-2020/webaudio/the-audio-api/the-audiobuffersourcenode-interface/sub-sample-buffer-stitching.html.ini
@@ -494,3 +494,6 @@
   [X Stitched sine-wave buffers at sample rate 43800 does not equal [0,0.06264832615852356,0.12505052983760834,0.18696144223213196,0.24813786149024963,0.308339387178421,0.36732959747314453,0.4248766601085663,0.480754554271698,0.5347436666488647,0.5866320133209229,0.6362156271934509,0.6832997798919678,0.7276994585990906,0.7692402601242065,0.8077589869499207...\] with an element-wise tolerance of {"absoluteThreshold":0.0038986,"relativeThreshold":0}.\n\tIndex\tActual\t\t\tExpected\t\tAbsError\t\tRelError\t\tTest threshold\n\t[28696\]\t-6.5086735184939384e+23\t9.3139332532882690e-1\t6.5086735184939384e+23\t6.9881041032756614e+23\t3.8985999999999999e-3\n\t[28697\]\t7.0477002859115601e-1\t9.0675884485244751e-1\t2.0198881626129150e-1\t2.2275913536212616e-1\t3.8985999999999999e-3\n\tMax AbsError of 6.5086735184939384e+23 at index of 28696.\n\tMax RelError of 6.9881041032756614e+23 at index of 28696.\n]
     expected: FAIL
 
+  [X Stitched sine-wave buffers at sample rate 43800 does not equal [0,0.06264832615852356,0.12505052983760834,0.18696144223213196,0.24813786149024963,0.308339387178421,0.36732959747314453,0.4248766601085663,0.480754554271698,0.5347436666488647,0.5866320133209229,0.6362156271934509,0.6832997798919678,0.7276994585990906,0.7692402601242065,0.8077589869499207...\] with an element-wise tolerance of {"absoluteThreshold":0.0038986,"relativeThreshold":0}.\n\tIndex\tActual\t\t\tExpected\t\tAbsError\t\tRelError\t\tTest threshold\n\t[28696\]\t1.1426107475823564e-22\t9.3139332532882690e-1\t9.3139332532882690e-1\t1.0000000000000000e+0\t3.8985999999999999e-3\n\t[28697\]\t7.0477002859115601e-1\t9.0675884485244751e-1\t2.0198881626129150e-1\t2.2275913536212616e-1\t3.8985999999999999e-3\n\tMax AbsError of 9.3139332532882690e-1 at index of 28696.\n\tMax RelError of 1.0000000000000000e+0 at index of 28696.\n]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata-layout-2020/webmessaging/without-ports/017.html.ini b/tests/wpt/metadata-layout-2020/webmessaging/without-ports/017.html.ini
deleted file mode 100644
index 064cf47545b..00000000000
--- a/tests/wpt/metadata-layout-2020/webmessaging/without-ports/017.html.ini
+++ /dev/null
@@ -1,5 +0,0 @@
-[017.html]
-  expected: TIMEOUT
-  [origin of the script that invoked the method, about:blank]
-    expected: TIMEOUT
-
diff --git a/tests/wpt/metadata-layout-2020/workers/constructors/Worker/Worker-constructor.html.ini b/tests/wpt/metadata-layout-2020/workers/constructors/Worker/Worker-constructor.html.ini
deleted file mode 100644
index 80f9a4f15b8..00000000000
--- a/tests/wpt/metadata-layout-2020/workers/constructors/Worker/Worker-constructor.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[Worker-constructor.html]
-  expected: ERROR
diff --git a/tests/wpt/metadata/MANIFEST.json b/tests/wpt/metadata/MANIFEST.json
index 0a713a07045..3603b5e92cc 100644
--- a/tests/wpt/metadata/MANIFEST.json
+++ b/tests/wpt/metadata/MANIFEST.json
@@ -128635,6 +128635,19 @@
        {}
       ]
      ],
+     "out-of-flow-in-multicolumn-012.html": [
+      "349d059b7a77f9b70046d99bc4a5e26c7c298bad",
+      [
+       null,
+       [
+        [
+         "/css/reference/ref-filled-green-100px-square.xht",
+         "=="
+        ]
+       ],
+       {}
+      ]
+     ],
      "out-of-flow-in-multicolumn-013.html": [
       "3bf06dfc1a779e3034122987a456fb33b2feb36e",
       [
@@ -179457,6 +179470,32 @@
         {}
        ]
       ],
+      "flex-aspect-ratio-025.html": [
+       "fa9ce8ebce69f02e6b13d9d2233d1e3b46c7f1ab",
+       [
+        null,
+        [
+         [
+          "/css/reference/ref-filled-green-200px-square.html",
+          "=="
+         ]
+        ],
+        {}
+       ]
+      ],
+      "flex-aspect-ratio-026.html": [
+       "1df14468632baa8ffd03d690f7ddaa618acd7bf6",
+       [
+        null,
+        [
+         [
+          "/css/reference/ref-filled-green-200px-square.html",
+          "=="
+         ]
+        ],
+        {}
+       ]
+      ],
       "grid-aspect-ratio-001.html": [
        "ce91fe4e4e8b2bb7f610fb230a292f59188ff95b",
        [
@@ -314759,7 +314798,7 @@
      },
      "support": {
       "grid-child-utils.js": [
-       "d75ad6eb7061349e5453c204235a172778528f6a",
+       "5e0c5caad12a879e68637b7ba058e44a89eafa01",
        []
       ]
      },
@@ -349117,6 +349156,28 @@
          []
         ]
        },
+       "import-assertions": {
+        "empty-assertion-clause.js": [
+         "6913dd61dffe682063eb887a08c90242ca1b5f42",
+         []
+        ],
+        "empty-type-assertion.js": [
+         "5bb9b1ddb8e648c7165a3b29ab425fc97cb81037",
+         []
+        ],
+        "hello.js": [
+         "2f348444606435700656725dbcd9a08e8e10775f",
+         []
+        ],
+        "invalid-type-assertion.js": [
+         "e28c0176d5c3e444051f7b21070ac62a86f0ff0f",
+         []
+        ],
+        "unsupported-assertion.js": [
+         "45f6d60c9dae25f26640d6b79b08fc9a009fc06b",
+         []
+        ]
+       },
        "is-module-goal.mjs": [
         "b533fc2e906b4b9a0a912044b19ee523ae5eef7a",
         []
@@ -360540,6 +360601,10 @@
        "ff333bd97da4c6949a3142ac8789cb2e45d41b86",
        []
       ],
+      "create-blob-url-worker.js": [
+       "57e4882c24f7273e3469b9b60649ffa4b4f39617",
+       []
+      ],
       "echo-content.py": [
        "70ae4b60254cf7971cdd92dc2b1e382ef1a6196b",
        []
@@ -361124,10 +361189,22 @@
        "8539b40066dd91bbfaf7ef240b8104dcb2ab3b27",
        []
       ],
+      "nested-blob-url-worker-created-from-worker.html": [
+       "fc048e288e903e6c558c5518d133f2c2ec96223e",
+       []
+      ],
+      "nested-blob-url-workers.html": [
+       "f0eafcd3e01c3f1857eee7fced78a3a494a8afb4",
+       []
+      ],
       "nested-iframe-parent.html": [
        "115ab26e1221024b30313569f484942b10f6dba0",
        []
       ],
+      "nested-worker-created-from-blob-url-worker.html": [
+       "3fad2c9228ceb1573a09a18cba480fdd6747cdc4",
+       []
+      ],
       "nested_load_worker.js": [
        "ef0ed8fc704ceaa81f1eef8d4ed75fd041baae6d",
        []
@@ -361268,6 +361345,10 @@
        "f088ad127804297cf981e61acb1c33ea7b0620c4",
        []
       ],
+      "postmessage-fetched-text.js": [
+       "9fc67171d05dd28d6317e9e2ab986b0b68a7fc15",
+       []
+      ],
       "postmessage-msgport-to-client-worker.js": [
        "7af935f4f8fc01756980e46dcce5018ddc620e67",
        []
@@ -363349,7 +363430,7 @@
        []
       ],
       "safari-technology-preview.rb": [
-       "c78bcef5c454c0e023c411f09753aedb1b90df0b",
+       "628c5f60914cffa26da7d26d2d9a0502e1be735f",
        []
       ],
       "system_info.yml": [
@@ -363840,11 +363921,11 @@
       []
      ],
      "log.py": [
-      "9e2ad74081e4a1b38b9c3c3ba61d49be2e8151fd",
+      "6551c2b5f7cc0f61a85ef5ffb4bbc466a585b1ab",
       []
      ],
      "manifest.py": [
-      "14d3844d461cd7e0d7a071dd957ad2829885a3c6",
+      "1b4f407b9626be61fca132cd7d0124b4b3d69d7e",
       []
      ],
      "sourcefile.py": [
@@ -363886,7 +363967,7 @@
       []
      ],
      "update.py": [
-      "296533a6babf176e4514bcf3f29e163fdf9a9fdf",
+      "a86ef7c8aa28f1f209f10b7254d1ca07cb17df51",
       []
      ],
      "utils.py": [
@@ -406491,6 +406572,13 @@
         {}
        ]
       ],
+      "content-visibility-080.html": [
+       "d3cea5fb83767ddfc236850097387644e0f74c8e",
+       [
+        null,
+        {}
+       ]
+      ],
       "inheritance.html": [
        "e1ae8164de00467a450511da9ca4bf7f138e9c71",
        [
@@ -430078,7 +430166,7 @@
     ],
     "parser": {
      "parser-constructs-custom-element-in-document-write.html": [
-      "3b5256677d0d08f2dac9240df06abc334f577f7c",
+      "14c830b9ba961e701ea39656f42a73cd638e65df",
       [
        null,
        {}
@@ -460931,6 +461019,13 @@
         {}
        ]
       ],
+      "sandbox-inherited-from-required-csp.html": [
+       "d1bc4d1e04d01177943b91893156d715ec2ed15a",
+       [
+        null,
+        {}
+       ]
+      ],
       "sandbox-initial-empty-document-toward-same-origin.html": [
        "d1306c970322682f3979c497a5decd78218ba845",
        [
@@ -491903,6 +491998,29 @@
          {}
         ]
        ],
+       "import-assertions": {
+        "empty-assertion-clause.html": [
+         "3a7c371189c9e847327ac14f49d4ee5153f35295",
+         [
+          null,
+          {}
+         ]
+        ],
+        "invalid-type-assertion-error.html": [
+         "d3399f085cede5afa124523b43ac6a301b6cb080",
+         [
+          null,
+          {}
+         ]
+        ],
+        "unsupported-assertion.html": [
+         "edda2d737a3cfa4c39f717f527ed6ad6da6b338d",
+         [
+          null,
+          {}
+         ]
+        ]
+       },
        "json-module": {
         "invalid-content-type.tentative.html": [
          "e6da2db7ebc03ac7753b19dce4e9c3fc38a30014",
@@ -499600,6 +499718,13 @@
       {}
      ]
     ],
+    "same-document-with-document-root.html": [
+     "15cb7c4cbc278079b15da8af6bfa11a2d6ad3ddc",
+     [
+      null,
+      {}
+     ]
+    ],
     "same-document-zero-size-target.html": [
      "20bd11d4beb1e8bdd623eaad96f11788747f0d15",
      [
@@ -512440,7 +512565,7 @@
      ]
     ],
     "pointerevent_auxclick_is_a_pointerevent.html": [
-     "000d0df764e53f8d1cfa629ebfcccfb768a7a4bf",
+     "aac73db9eb7c5f5a7c71207e52eab30bf53f3526",
      [
       null,
       {
@@ -512503,7 +512628,7 @@
      ]
     ],
     "pointerevent_click_is_a_pointerevent.html": [
-     "dfea148898e4eed29f25e9bf04067a6e7e251b25",
+     "2f5dfd4dbfdd81e45868517632a41998aed8f21d",
      [
       null,
       {
@@ -530641,6 +530766,13 @@
        {}
       ]
      ],
+     "nested-blob-url-workers.https.html": [
+      "7269cbb701fabc2faa746f6ed47fba8fa9d423c8",
+      [
+       null,
+       {}
+      ]
+     ],
      "next-hop-protocol.https.html": [
       "7a907438d5d9f0b3ba1e198e048ea0b2e86a2415",
       [
@@ -540914,7 +541046,7 @@
        ]
       ],
       "SVGAnimatedEnumeration-SVGFECompositeElement.html": [
-       "e6315b434504e754872dd460988187957efbfb07",
+       "0e99f5fe9cb3335f54591d75e75bffdc0262d0d2",
        [
         null,
         {}
@@ -565379,7 +565511,7 @@
      ]
     ],
     "event-timeout.any.js": [
-     "da8ca11bb8ea1a8ef673be20ae2de8715a4d1130",
+     "c73cd1a48540511a5f527b49668aac18e5330169",
      [
       "xhr/event-timeout.any.html",
       {
diff --git a/tests/wpt/metadata/css/CSS2/floats/hit-test-floats-002.html.ini b/tests/wpt/metadata/css/CSS2/floats/hit-test-floats-002.html.ini
deleted file mode 100644
index f64b45fea6b..00000000000
--- a/tests/wpt/metadata/css/CSS2/floats/hit-test-floats-002.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[hit-test-floats-002.html]
-  [Hit test float]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/css/CSS2/floats/hit-test-floats-004.html.ini b/tests/wpt/metadata/css/CSS2/floats/hit-test-floats-004.html.ini
deleted file mode 100644
index 4bfb0c2053a..00000000000
--- a/tests/wpt/metadata/css/CSS2/floats/hit-test-floats-004.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[hit-test-floats-004.html]
-  [Miss float below something else]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/css/CSS2/normal-flow/hit-test-anonymous-block.html.ini b/tests/wpt/metadata/css/CSS2/normal-flow/hit-test-anonymous-block.html.ini
deleted file mode 100644
index 8efb7024ae4..00000000000
--- a/tests/wpt/metadata/css/CSS2/normal-flow/hit-test-anonymous-block.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[hit-test-anonymous-block.html]
-  [Hit test beside line of text inside anonymous block]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/css/css-transforms/transform-scale-hittest.html.ini b/tests/wpt/metadata/css/css-transforms/transform-scale-hittest.html.ini
index f8e7e539aae..4a1e8110f6f 100644
--- a/tests/wpt/metadata/css/css-transforms/transform-scale-hittest.html.ini
+++ b/tests/wpt/metadata/css/css-transforms/transform-scale-hittest.html.ini
@@ -2,6 +2,3 @@
   [Hit test intersecting scaled box]
     expected: FAIL
 
-  [Hit test within unscaled box]
-    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 32fce125d51..514aac13c35 100644
--- a/tests/wpt/metadata/fetch/content-type/response.window.js.ini
+++ b/tests/wpt/metadata/fetch/content-type/response.window.js.ini
@@ -318,15 +318,12 @@
   [<iframe>: combined response Content-Type: text/html;charset=gbk text/plain text/html]
     expected: FAIL
 
-  [<iframe>: separate response Content-Type: text/html */*]
-    expected: FAIL
-
-  [<iframe>: combined response Content-Type: text/html */*]
-    expected: FAIL
-
-  [<iframe>: combined response Content-Type: text/html;x=" text/plain]
-    expected: FAIL
-
   [<iframe>: separate response Content-Type: text/plain */*;charset=gbk]
     expected: FAIL
 
+  [<iframe>: separate response Content-Type: text/html */*;charset=gbk]
+    expected: FAIL
+
+  [<iframe>: combined response Content-Type: text/plain;charset=gbk text/html]
+    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 1c62485a210..30e1b851fd4 100644
--- a/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini
+++ b/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini
@@ -11,9 +11,3 @@
   [X-Content-Type-Options%3A%20nosniff%2C%2C%40%23%24%23%25%25%26%5E%26%5E*()()11!]
     expected: FAIL
 
-  [X-Content-Type-Options%3A%20%2Cnosniff]
-    expected: FAIL
-
-  [Content-Type-Options%3A%20nosniff]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_4.html.ini b/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_4.html.ini
new file mode 100644
index 00000000000..385376c7321
--- /dev/null
+++ b/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_4.html.ini
@@ -0,0 +1,4 @@
+[traverse_the_history_4.html]
+  [Multiple history traversals, last would be aborted]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_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/sandboxing/sandbox-inherited-from-required-csp.html.ini b/tests/wpt/metadata/html/browsers/sandboxing/sandbox-inherited-from-required-csp.html.ini
new file mode 100644
index 00000000000..7c1e4f9fdeb
--- /dev/null
+++ b/tests/wpt/metadata/html/browsers/sandboxing/sandbox-inherited-from-required-csp.html.ini
@@ -0,0 +1,19 @@
+[sandbox-inherited-from-required-csp.html]
+  [initial empty document]
+    expected: FAIL
+
+  [same-origin]
+    expected: FAIL
+
+  [blob URL]
+    expected: FAIL
+
+  [cross-origin]
+    expected: FAIL
+
+  [about:blank]
+    expected: FAIL
+
+  [srcdoc]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/html/browsers/windows/embedded-opener-remove-frame.html.ini b/tests/wpt/metadata/html/browsers/windows/embedded-opener-remove-frame.html.ini
index 442db3cb549..2532dceabac 100644
--- a/tests/wpt/metadata/html/browsers/windows/embedded-opener-remove-frame.html.ini
+++ b/tests/wpt/metadata/html/browsers/windows/embedded-opener-remove-frame.html.ini
@@ -1,4 +1,5 @@
 [embedded-opener-remove-frame.html]
+  expected: CRASH
   [opener and "removed" embedded documents]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-3.html.ini b/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-3.html.ini
index 5f60c78e73c..f6a7aca3306 100644
--- a/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-3.html.ini
+++ b/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-3.html.ini
@@ -1,6 +1,5 @@
 [iframe_sandbox_popups_escaping-3.html]
   type: testharness
-  expected: TIMEOUT
   [Check that popups from a sandboxed iframe escape the sandbox if\n       allow-popups-to-escape-sandbox is used]
-    expected: TIMEOUT
+    expected: FAIL
 
diff --git a/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-3.html.ini b/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-3.html.ini
index f4f994c5d6f..7a36937927c 100644
--- a/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-3.html.ini
+++ b/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-3.html.ini
@@ -1,5 +1,4 @@
 [iframe_sandbox_popups_nonescaping-3.html]
-  expected: TIMEOUT
   [Check that popups from a sandboxed iframe do not escape the sandbox]
-    expected: NOTRUN
+    expected: FAIL
 
diff --git a/tests/wpt/metadata/html/semantics/forms/form-submission-0/form-double-submit-2.html.ini b/tests/wpt/metadata/html/semantics/forms/form-submission-0/form-double-submit-2.html.ini
deleted file mode 100644
index 633a99517d3..00000000000
--- a/tests/wpt/metadata/html/semantics/forms/form-submission-0/form-double-submit-2.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[form-double-submit-2.html]
-  [preventDefault should allow onclick submit() to succeed]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/html/semantics/forms/form-submission-0/form-double-submit.html.ini b/tests/wpt/metadata/html/semantics/forms/form-submission-0/form-double-submit.html.ini
deleted file mode 100644
index b193c33c2b6..00000000000
--- a/tests/wpt/metadata/html/semantics/forms/form-submission-0/form-double-submit.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[form-double-submit.html]
-  [default submit action should supersede onclick submit()]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/html/semantics/forms/textfieldselection/select-event.html.ini b/tests/wpt/metadata/html/semantics/forms/textfieldselection/select-event.html.ini
index fd42ca23672..fad5c710dc4 100644
--- a/tests/wpt/metadata/html/semantics/forms/textfieldselection/select-event.html.ini
+++ b/tests/wpt/metadata/html/semantics/forms/textfieldselection/select-event.html.ini
@@ -1,28 +1,7 @@
 [select-event.html]
-  [input type url: setSelectionRange() a second time (must not fire select)]
-    expected: FAIL
-
-  [input type tel: select() a second time (must not fire select)]
-    expected: FAIL
-
-  [input type password: selectionDirection a second time (must not fire select)]
-    expected: FAIL
-
-  [input type url: select() a second time (must not fire select)]
-    expected: FAIL
-
-  [input type text: setRangeText() a second time (must not fire select)]
-    expected: FAIL
-
-  [input type password: select() a second time (must not fire select)]
-    expected: FAIL
-
   [textarea: selectionDirection a second time (must not fire select)]
     expected: FAIL
 
-  [input type password: selectionEnd out of range a second time (must not fire select)]
-    expected: FAIL
-
   [input type tel: setSelectionRange out of range a second time (must not fire select)]
     expected: FAIL
 
@@ -38,33 +17,66 @@
   [input type url: selectionStart out of range a second time (must not fire select)]
     expected: FAIL
 
-  [textarea: setRangeText() a second time (must not fire select)]
-    expected: FAIL
-
-  [input type tel: setSelectionRange() a second time (must not fire select)]
-    expected: FAIL
-
-  [input type url: selectionDirection a second time (must not fire select)]
-    expected: FAIL
-
-  [input type tel: selectionEnd a second time (must not fire select)]
-    expected: FAIL
-
   [textarea: selectionStart out of range a second time (must not fire select)]
     expected: FAIL
 
-  [input type text: selectionStart out of range a second time (must not fire select)]
-    expected: FAIL
-
-  [input type text: selectionStart a second time (must not fire select)]
-    expected: FAIL
-
   [input type url: selectionStart a second time (must not fire select)]
     expected: FAIL
 
   [input type search: selectionStart a second time (must not fire select)]
     expected: FAIL
 
-  [input type url: setSelectionRange out of range a second time (must not fire select)]
+  [textarea: selectionEnd a second time (must not fire select)]
+    expected: FAIL
+
+  [input type tel: selectionEnd out of range a second time (must not fire select)]
+    expected: FAIL
+
+  [input type text: selectionEnd a second time (must not fire select)]
+    expected: FAIL
+
+  [input type tel: setRangeText() a second time (must not fire select)]
+    expected: FAIL
+
+  [input type url: selectionEnd a second time (must not fire select)]
+    expected: FAIL
+
+  [input type password: setSelectionRange() a second time (must not fire select)]
+    expected: FAIL
+
+  [input type text: setSelectionRange() a second time (must not fire select)]
+    expected: FAIL
+
+  [input type text: setSelectionRange out of range a second time (must not fire select)]
+    expected: FAIL
+
+  [input type text: selectionEnd out of range a second time (must not fire select)]
+    expected: FAIL
+
+  [input type tel: selectionDirection a second time (must not fire select)]
+    expected: FAIL
+
+  [input type search: selectionEnd a second time (must not fire select)]
+    expected: FAIL
+
+  [input type password: selectionEnd a second time (must not fire select)]
+    expected: FAIL
+
+  [input type text: selectionDirection a second time (must not fire select)]
+    expected: FAIL
+
+  [textarea: setSelectionRange out of range a second time (must not fire select)]
+    expected: FAIL
+
+  [input type url: setRangeText() a second time (must not fire select)]
+    expected: FAIL
+
+  [input type password: selectionStart out of range a second time (must not fire select)]
+    expected: FAIL
+
+  [textarea: selectionEnd out of range a second time (must not fire select)]
+    expected: FAIL
+
+  [input type tel: selectionStart a second time (must not fire select)]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/html/semantics/links/following-hyperlinks/activation-behavior.window.js.ini b/tests/wpt/metadata/html/semantics/links/following-hyperlinks/activation-behavior.window.js.ini
new file mode 100644
index 00000000000..ca460dc6867
--- /dev/null
+++ b/tests/wpt/metadata/html/semantics/links/following-hyperlinks/activation-behavior.window.js.ini
@@ -0,0 +1,4 @@
+[activation-behavior.window.html]
+  [<a> that is not connected should be followed]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/html/semantics/scripting-1/the-script-element/import-assertions/empty-assertion-clause.html.ini b/tests/wpt/metadata/html/semantics/scripting-1/the-script-element/import-assertions/empty-assertion-clause.html.ini
new file mode 100644
index 00000000000..77f56ecc207
--- /dev/null
+++ b/tests/wpt/metadata/html/semantics/scripting-1/the-script-element/import-assertions/empty-assertion-clause.html.ini
@@ -0,0 +1,5 @@
+[empty-assertion-clause.html]
+  expected: ERROR
+  [Test that no error occurs when an empty import assertion clause is provided.]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/html/semantics/scripting-1/the-script-element/import-assertions/invalid-type-assertion-error.html.ini b/tests/wpt/metadata/html/semantics/scripting-1/the-script-element/import-assertions/invalid-type-assertion-error.html.ini
new file mode 100644
index 00000000000..e68cd55a9d4
--- /dev/null
+++ b/tests/wpt/metadata/html/semantics/scripting-1/the-script-element/import-assertions/invalid-type-assertion-error.html.ini
@@ -0,0 +1,4 @@
+[invalid-type-assertion-error.html]
+  [Test that invalid module type assertion leads to TypeError on window.]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/html/semantics/scripting-1/the-script-element/import-assertions/unsupported-assertion.html.ini b/tests/wpt/metadata/html/semantics/scripting-1/the-script-element/import-assertions/unsupported-assertion.html.ini
new file mode 100644
index 00000000000..72af29b4be8
--- /dev/null
+++ b/tests/wpt/metadata/html/semantics/scripting-1/the-script-element/import-assertions/unsupported-assertion.html.ini
@@ -0,0 +1,5 @@
+[unsupported-assertion.html]
+  expected: ERROR
+  [Test that no error occurs when an unsupported import assertion is provided.]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/webaudio/the-audio-api/the-analysernode-interface/realtimeanalyser-fft-scaling.html.ini b/tests/wpt/metadata/webaudio/the-audio-api/the-analysernode-interface/realtimeanalyser-fft-scaling.html.ini
index 66bd350083b..a56bad443a2 100644
--- a/tests/wpt/metadata/webaudio/the-audio-api/the-analysernode-interface/realtimeanalyser-fft-scaling.html.ini
+++ b/tests/wpt/metadata/webaudio/the-audio-api/the-analysernode-interface/realtimeanalyser-fft-scaling.html.ini
@@ -1,4 +1,5 @@
 [realtimeanalyser-fft-scaling.html]
+  expected: TIMEOUT
   [X 2048-point FFT peak position is not equal to 64. Got 0.]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/webaudio/the-audio-api/the-audiobuffersourcenode-interface/sub-sample-buffer-stitching.html.ini b/tests/wpt/metadata/webaudio/the-audio-api/the-audiobuffersourcenode-interface/sub-sample-buffer-stitching.html.ini
index c3199854574..6f135c00586 100644
--- a/tests/wpt/metadata/webaudio/the-audio-api/the-audiobuffersourcenode-interface/sub-sample-buffer-stitching.html.ini
+++ b/tests/wpt/metadata/webaudio/the-audio-api/the-audiobuffersourcenode-interface/sub-sample-buffer-stitching.html.ini
@@ -722,3 +722,6 @@
   [X Stitched sine-wave buffers at sample rate 43800 does not equal [0,0.06264832615852356,0.12505052983760834,0.18696144223213196,0.24813786149024963,0.308339387178421,0.36732959747314453,0.4248766601085663,0.480754554271698,0.5347436666488647,0.5866320133209229,0.6362156271934509,0.6832997798919678,0.7276994585990906,0.7692402601242065,0.8077589869499207...\] with an element-wise tolerance of {"absoluteThreshold":0.0038986,"relativeThreshold":0}.\n\tIndex\tActual\t\t\tExpected\t\tAbsError\t\tRelError\t\tTest threshold\n\t[28696\]\t-6.5086735184939384e+23\t9.3139332532882690e-1\t6.5086735184939384e+23\t6.9881041032756614e+23\t3.8985999999999999e-3\n\t[28697\]\t7.0477002859115601e-1\t9.0675884485244751e-1\t2.0198881626129150e-1\t2.2275913536212616e-1\t3.8985999999999999e-3\n\tMax AbsError of 6.5086735184939384e+23 at index of 28696.\n\tMax RelError of 6.9881041032756614e+23 at index of 28696.\n]
     expected: FAIL
 
+  [X Stitched sine-wave buffers at sample rate 43800 does not equal [0,0.06264832615852356,0.12505052983760834,0.18696144223213196,0.24813786149024963,0.308339387178421,0.36732959747314453,0.4248766601085663,0.480754554271698,0.5347436666488647,0.5866320133209229,0.6362156271934509,0.6832997798919678,0.7276994585990906,0.7692402601242065,0.8077589869499207...\] with an element-wise tolerance of {"absoluteThreshold":0.0038986,"relativeThreshold":0}.\n\tIndex\tActual\t\t\tExpected\t\tAbsError\t\tRelError\t\tTest threshold\n\t[28696\]\t1.1426107475823564e-22\t9.3139332532882690e-1\t9.3139332532882690e-1\t1.0000000000000000e+0\t3.8985999999999999e-3\n\t[28697\]\t7.0477002859115601e-1\t9.0675884485244751e-1\t2.0198881626129150e-1\t2.2275913536212616e-1\t3.8985999999999999e-3\n\tMax AbsError of 9.3139332532882690e-1 at index of 28696.\n\tMax RelError of 1.0000000000000000e+0 at index of 28696.\n]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/webmessaging/without-ports/017.html.ini b/tests/wpt/metadata/webmessaging/without-ports/017.html.ini
deleted file mode 100644
index 064cf47545b..00000000000
--- a/tests/wpt/metadata/webmessaging/without-ports/017.html.ini
+++ /dev/null
@@ -1,5 +0,0 @@
-[017.html]
-  expected: TIMEOUT
-  [origin of the script that invoked the method, about:blank]
-    expected: TIMEOUT
-
diff --git a/tests/wpt/metadata/workers/constructors/Worker/Worker-constructor.html.ini b/tests/wpt/metadata/workers/constructors/Worker/Worker-constructor.html.ini
deleted file mode 100644
index 80f9a4f15b8..00000000000
--- a/tests/wpt/metadata/workers/constructors/Worker/Worker-constructor.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[Worker-constructor.html]
-  expected: ERROR
diff --git a/tests/wpt/web-platform-tests/css/css-break/out-of-flow-in-multicolumn-012.html b/tests/wpt/web-platform-tests/css/css-break/out-of-flow-in-multicolumn-012.html
new file mode 100644
index 00000000000..349d059b7a7
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-break/out-of-flow-in-multicolumn-012.html
@@ -0,0 +1,39 @@
+<!DOCTYPE html>
+<link rel="help" href="href=https://www.w3.org/TR/css-position-3/#abspos-breaking">
+<link rel="match" href="../reference/ref-filled-green-100px-square.xht">
+<!-- Fragmented OOF with `height: auto`, positioned with the bottom property and
+     the second child fragment has a 'break-inside: avoid'. The abspos fragment
+     should still encompass its children completely despite the break. -->
+<style>
+  #multicol {
+    column-count: 2;
+    width: 100px;
+    height: 100px;
+    column-fill: auto;
+    column-gap: 0px;
+    background-color: red;
+  }
+  .rel {
+    position: relative;
+    height: 190px;
+    width: 50px;
+  }
+  .abs {
+    position: absolute;
+    bottom: 0;
+    width: 50px;
+    background-color: green;
+  }
+</style>
+<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+<div id="multicol">
+  <div class="rel">
+    <!-- The abspos computed height is 190px, but because it has to encompass
+         all its children, it will be 200px. -->
+    <div class="abs">
+      <div style="height: 90px;"></div>
+      <div style="height: 50px; break-inside: avoid;"></div>
+      <div style="height: 50px;"></div>
+    </div>
+  </div>
+</div>
\ No newline at end of file
diff --git a/tests/wpt/web-platform-tests/css/css-contain/content-visibility/content-visibility-080.html b/tests/wpt/web-platform-tests/css/css-contain/content-visibility/content-visibility-080.html
new file mode 100644
index 00000000000..d3cea5fb837
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-contain/content-visibility/content-visibility-080.html
@@ -0,0 +1,31 @@
+<!doctype HTML>
+<html id=html>
+<meta charset="utf8">
+<title>Content Visibility: caret position with html hidden</title>
+<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
+<link rel="help" href="https://drafts.csswg.org/css-contain/#content-visibility">
+<meta name="assert" content="caretRangeFromPoint works even if html has content-visibility hidden">
+
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+
+<meter></meter>
+<iframe></iframe>
+<style>
+* {
+  all: initial;
+  content-visibility: hidden;
+}
+</style>
+
+<script>
+test(() => {
+  const range = document.caretRangeFromPoint();
+  assert_not_equals(range, null, "range exists");
+  assert_equals(range.startContainer, html, "startContainer is html");
+  assert_equals(range.startOffset, 0, "startOffset is zero");
+  assert_equals(range.endContainer, html, "endContainer is html");
+  assert_equals(range.endOffset, 0, "endOffset is zero");
+}, "Caret range from point");
+</script>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/support/grid-child-utils.js b/tests/wpt/web-platform-tests/css/css-grid/support/grid-child-utils.js
index d75ad6eb706..5e0c5caad12 100644
--- a/tests/wpt/web-platform-tests/css/css-grid/support/grid-child-utils.js
+++ b/tests/wpt/web-platform-tests/css/css-grid/support/grid-child-utils.js
@@ -5,7 +5,7 @@ const gridChildHelperRow = "row";
 const gridChildHelperCol = "col";
 
 // Helper for building testcases for grid-template-* with a child div in
-// multiple positions. Prop is expected ot be one of gridChildHelperRow or
+// multiple positions. Prop is expected to be one of gridChildHelperRow or
 // gridChildHelperCol, to select testing grid rows or grid columns,
 // respectively.
 // The child div is found by the id of 'child'.
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/aspect-ratio/flex-aspect-ratio-025.html b/tests/wpt/web-platform-tests/css/css-sizing/aspect-ratio/flex-aspect-ratio-025.html
new file mode 100644
index 00000000000..fa9ce8ebce6
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-sizing/aspect-ratio/flex-aspect-ratio-025.html
@@ -0,0 +1,73 @@
+<!DOCTYPE html>
+<html>
+  <title>CSS aspect-ratio: Test flex item's resolved width/min-width with border-box box-sizing in a row flex container</title>
+  <link rel="author" title="Ting-Yu Lin" href="mailto:tlin@mozilla.com">
+  <link rel="author" title="Mozilla" href="https://www.mozilla.org/">
+  <link rel="help" href="https://drafts.csswg.org/css-sizing-4/#aspect-ratio">
+  <link rel="match" href="../../reference/ref-filled-green-200px-square.html" />
+  <style>
+  .flexContainer {
+    display: flex;
+    flex-direction: row;
+    width: 1px;
+  }
+  .item {
+    background: green;
+    padding-top: 15px;
+    box-sizing: border-box;
+  }
+  </style>
+
+  <p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+
+  <!-- In the following four flex containers, the aspect-ratio works with border-box. -->
+  <div class="flexContainer" style="width: auto;">
+    <!-- The border-box height 25px is transferred to the main axis,
+         yielding a resolved flex base size of 200px. -->
+    <div class="item" style="min-width:0; height: 25px; aspect-ratio: 8/1;"></div>
+  </div>
+
+  <div class="flexContainer">
+    <!-- The border-box height 25px is transferred to the main axis,
+         yielding a resolved min-width:auto of 200px. -->
+    <div class="item" style="height: 25px; aspect-ratio: 8/1;"></div>
+  </div>
+
+  <div class="flexContainer">
+    <!-- The border-box min-height 25px is transferred to the main axis,
+         yielding a resolved min-width:auto of 200px. -->
+    <div class="item" style="min-height: 25px; aspect-ratio: 8/1;"></div>
+  </div>
+
+  <div class="flexContainer">
+    <!-- The border-box height 25px (clamped by max-height) is transferred to the main axis,
+         yielding a resolved min-width:auto of 200px. -->
+    <div class="item" style="max-height: 25px; height: 100px; aspect-ratio: 8/1;"></div>
+  </div>
+
+  <!-- In the following four flex containers, the aspect-ratio works with content-box
+       because its value contains 'auto'. -->
+  <div class="flexContainer" style="width: auto;">
+    <!-- The content-box height 10px is transferred to the main axis,
+         yielding a resolved flex base size of 200px. -->
+    <div class="item" style="min-width:0; height: 25px; aspect-ratio: auto 20/1;"></div>
+  </div>
+
+  <div class="flexContainer">
+    <!-- The content-box height 10px is transferred to the main axis,
+         yielding a resolved min-width:auto of 200px. -->
+    <div class="item" style="height: 25px; aspect-ratio: auto 20/1;"></div>
+  </div>
+
+  <div class="flexContainer">
+    <!-- The content-box min-height 10px is transferred to the main axis,
+         yielding a resolved min-width:auto of 200px. -->
+    <div class="item" style="min-height: 25px; aspect-ratio: auto 20/1;"></div>
+  </div>
+
+  <div class="flexContainer">
+    <!-- The content-box height 10px (clamped by max-height) is transferred
+         to the main axis, yielding a resolved min-width:auto of 200px. -->
+    <div class="item" style="max-height: 25px; height: 100px; aspect-ratio: auto 20/1;"></div>
+  </div>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/aspect-ratio/flex-aspect-ratio-026.html b/tests/wpt/web-platform-tests/css/css-sizing/aspect-ratio/flex-aspect-ratio-026.html
new file mode 100644
index 00000000000..1df14468632
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-sizing/aspect-ratio/flex-aspect-ratio-026.html
@@ -0,0 +1,77 @@
+<!DOCTYPE html>
+<html>
+  <title>CSS aspect-ratio: Test flex item's resolved height/min-height with border-box box-sizing in a column flex container</title>
+  <link rel="author" title="Ting-Yu Lin" href="mailto:tlin@mozilla.com">
+  <link rel="author" title="Mozilla" href="https://www.mozilla.org/">
+  <link rel="help" href="https://drafts.csswg.org/css-sizing-4/#aspect-ratio">
+  <link rel="match" href="../../reference/ref-filled-green-200px-square.html" />
+  <style>
+  .flexContainer {
+    display: flex;
+    flex-direction: column;
+    float: left;
+    height: 1px;
+  }
+  .item {
+    background: green;
+    padding-left: 15px;
+    box-sizing: border-box;
+  }
+  .item > div {
+    height: 500px; /* Set a large content size suggestion for flex item. */
+  }
+  </style>
+
+  <p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+
+  <!-- In the following four flex containers, the aspect-ratio works with border-box. -->
+  <div class="flexContainer" style="height: auto;">
+    <!-- The border-box width 25px is transferred to the main axis,
+         yielding a resolved flex base size of 200px. -->
+    <div class="item" style="min-height:0; width: 25px; aspect-ratio: 1/8;"><div></div></div>
+  </div>
+
+  <div class="flexContainer">
+    <!-- The border-box width 25px is transferred to the main axis,
+         yielding a resolved min-height:auto of 200px. -->
+    <div class="item" style="width: 25px; aspect-ratio: 1/8;"><div></div></div>
+  </div>
+
+  <div class="flexContainer">
+    <!-- The border-box min-width 25px is transferred to the main axis,
+         yielding a resolved min-height:auto of 200px. -->
+    <div class="item" style="min-width: 25px; aspect-ratio: 1/8;"><div></div></div>
+  </div>
+
+  <div class="flexContainer">
+    <!-- The border-box width 25px (clamped by max-width) is transferred to the main axis,
+         yielding a resolved min-height:auto of 200px. -->
+    <div class="item" style="max-width: 25px; width: 100px; aspect-ratio: 1/8;"><div></div></div>
+  </div>
+
+  <!-- In the following four flex containers, the aspect-ratio works with content-box
+       because its value contains 'auto'. -->
+  <div class="flexContainer" style="height: auto;">
+    <!-- The content-box width 10px is transferred to the main axis,
+         yielding a resolved flex base size of 200px. -->
+    <div class="item" style="min-height:0; width: 25px; aspect-ratio: auto 1/20;"><div></div></div>
+  </div>
+
+  <div class="flexContainer">
+    <!-- The content-box width 10px is transferred to the main axis,
+         yielding a resolved min-height:auto of 200px. -->
+    <div class="item" style="width: 25px; aspect-ratio: auto 1/20;"><div></div></div>
+  </div>
+
+  <div class="flexContainer">
+    <!-- The content-box min-width 10px is transferred to the main axis,
+         yielding a resolved min-height:auto of 200px. -->
+    <div class="item" style="min-width: 25px; aspect-ratio: auto 1/20;"><div></div></div>
+  </div>
+
+  <div class="flexContainer">
+    <!-- The content-box width 10px (clamped by max-width) is transferred to the main axis,
+         yielding a resolved min-height:auto of 200px. -->
+    <div class="item" style="max-width: 25px; width: 100px; aspect-ratio: auto 1/20;"><div></div></div>
+  </div>
+</html>
diff --git a/tests/wpt/web-platform-tests/custom-elements/parser/parser-constructs-custom-element-in-document-write.html b/tests/wpt/web-platform-tests/custom-elements/parser/parser-constructs-custom-element-in-document-write.html
index 3b5256677d0..14c830b9ba9 100644
--- a/tests/wpt/web-platform-tests/custom-elements/parser/parser-constructs-custom-element-in-document-write.html
+++ b/tests/wpt/web-platform-tests/custom-elements/parser/parser-constructs-custom-element-in-document-write.html
@@ -14,10 +14,16 @@
 <div id="log"></div>
 <script>
 
-class MyCustomElement extends HTMLElement { }
+var numberOfChildNodesInConnectedCallback = 0;
+
+class MyCustomElement extends HTMLElement {
+    connectedCallback() {
+        numberOfChildNodesInConnectedCallback = this.childNodes.length;
+    }
+}
 customElements.define('my-custom-element', MyCustomElement);
 
-document.write('<my-custom-element></my-custom-element>');
+document.write('<my-custom-element>hello <b>world</b></my-custom-element>');
 
 test(function () {
     var instance = document.querySelector('my-custom-element');
@@ -27,6 +33,11 @@ test(function () {
 
 }, 'HTML parser must instantiate custom elements inside document.write');
 
+test(function () {
+  assert_equals(numberOfChildNodesInConnectedCallback, 0);
+
+}, 'HTML parser should call connectedCallback before appending child nodes inside document.write');
+
 </script>
 </body>
 </html>
diff --git a/tests/wpt/web-platform-tests/html/browsers/sandboxing/sandbox-inherited-from-required-csp.html b/tests/wpt/web-platform-tests/html/browsers/sandboxing/sandbox-inherited-from-required-csp.html
new file mode 100644
index 00000000000..d1bc4d1e04d
--- /dev/null
+++ b/tests/wpt/web-platform-tests/html/browsers/sandboxing/sandbox-inherited-from-required-csp.html
@@ -0,0 +1,141 @@
+<!DOCTYPE html>
+<meta charset=utf-8>
+<title>Inherit sandbox from CSP embedded enforcement</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/common/get-host-info.sub.js"></script>
+<body>
+<script>
+// Check sandbox flags are properly defined when its parent requires them and
+// the child allows it.
+
+const same_origin = get_host_info().HTTPS_ORIGIN;
+const cross_origin = get_host_info().HTTPS_REMOTE_ORIGIN;
+const check_sandbox_url =
+  "/html/browsers/sandboxing/resources/check-sandbox-flags.html?pipe=";
+const allow_csp_from_star = "|header(Allow-CSP-From,*)";
+
+// Return a promise, resolving when |element| triggers |event_name| event.
+const future = (element, event_name) => {
+  return new Promise(resolve => {
+    element.addEventListener(event_name, event => resolve(event))
+  });
+};
+
+const check_sandbox_script = `
+  try {
+    document.domain = document.domain;
+    parent.postMessage("document-domain-is-allowed", "*");
+  } catch (exception) {
+    parent.postMessage("document-domain-is-disallowed", "*");
+  }
+`;
+
+const sandbox_policy = "sandbox allow-scripts allow-same-origin";
+
+promise_test(async test => {
+  const iframe = document.createElement("iframe");
+  iframe.csp = sandbox_policy;
+
+  // The <iframe> immediately hosts the initial empty document after being
+  // appended into the DOM. It will, as long as its 'src' isn't loaded. That's
+  // why a page do not load is being used.
+  iframe.src = "/fetch/api/resources/infinite-slow-response.py";
+  document.body.appendChild(iframe);
+
+  const iframe_reply = future(window, "message");
+  iframe.contentWindow.location =
+    `javascript:${encodeURI(check_sandbox_script)}`;
+  const result = await iframe_reply;
+  iframe.remove();
+
+  assert_equals(result.data, "document-domain-is-not-allowed");
+}, "initial empty document");
+
+promise_test(async test => {
+  const iframe = document.createElement("iframe");
+  iframe.src = "data:text/html,dummy";
+
+  const iframe_load_1 = future(iframe, "load");
+  document.body.appendChild(iframe);
+  await iframe_load_1;
+
+  const iframe_load_2 = future(iframe, "load");
+  iframe.csp = sandbox_policy;
+  iframe.src = "about:blank";
+  await iframe_load_2;
+
+  const iframe_reply = future(window, "message");
+  iframe.contentWindow.location =
+    `javascript:${encodeURI(check_sandbox_script)}`;
+  const result = await iframe_reply;
+
+  assert_equals(result.data, "document-domain-is-not-allowed");
+}, "about:blank");
+
+promise_test(async test => {
+  const iframe = document.createElement("iframe");
+  iframe.csp = sandbox_policy;
+  iframe.src =
+    `data:text/html,<script>${encodeURI(check_sandbox_script)}</scr`+`ipt>`;
+
+  const iframe_reply = future(window, "message");
+  document.body.appendChild(iframe);
+  const result = await iframe_reply;
+
+  assert_equals(result.data, "document-domain-is-disallowed");
+}, "data-url");
+
+promise_test(async test => {
+  const iframe = document.createElement("iframe");
+  iframe.csp = sandbox_policy;
+  iframe.srcdoc = `<script>${check_sandbox_script}</scr`+`ipt>`;
+
+  const iframe_reply = future(window, "message");
+  document.body.appendChild(iframe);
+  const result = await iframe_reply;
+
+  assert_equals(result.data, "document-domain-is-not-allowed");
+}, "srcdoc");
+
+promise_test(async test => {
+  const iframe = document.createElement("iframe");
+  iframe.csp = sandbox_policy;
+
+  const blob = new Blob(
+    [ `<script>${check_sandbox_script}</scr`+`ipt>` ], { type: "text/html" });
+
+  iframe.src = URL.createObjectURL(blob);
+
+  const iframe_reply = future(window, "message");
+  document.body.appendChild(iframe);
+  const result = await iframe_reply;
+
+  assert_equals(result.data, "document-domain-is-disallowed");
+}, "blob URL");
+
+promise_test(async test => {
+  const iframe = document.createElement("iframe");
+  iframe.csp = sandbox_policy;
+  iframe.src = same_origin + check_sandbox_url + allow_csp_from_star;
+
+  const iframe_reply = future(window, "message");
+  document.body.appendChild(iframe);
+  const result = await iframe_reply;
+
+  assert_equals(result.data, "document-domain-is-disallowed");
+}, "same-origin");
+
+promise_test(async test => {
+  const iframe = document.createElement("iframe");
+  iframe.csp = sandbox_policy;
+  iframe.src = cross_origin + check_sandbox_url + allow_csp_from_star;
+
+  const iframe_reply = future(window, "message");
+  document.body.appendChild(iframe);
+  const result = await iframe_reply;
+
+  assert_equals(result.data, "document-domain-is-disallowed");
+}, "cross-origin");
+
+</script>
diff --git a/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/import-assertions/empty-assertion-clause.html b/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/import-assertions/empty-assertion-clause.html
new file mode 100644
index 00000000000..3a7c371189c
--- /dev/null
+++ b/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/import-assertions/empty-assertion-clause.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<title>Handling of empty import assertion clause</title>
+
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script>
+    window.log = [];
+
+    window.addEventListener("error", ev => log.push(ev.error));
+
+    const test_load = async_test(
+        "Test that no error occurs when an empty import assertion clause is provided.");
+    window.addEventListener("load", test_load.step_func_done(ev => {
+      assert_array_equals(window.log, ["hello", "empty-assertion-clause"]);
+    }));
+
+    function unreachable() { log.push("unexpected"); }
+</script>
+<script type="module" src="./empty-assertion-clause.js" onerror="unreachable()"></script>
diff --git a/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/import-assertions/empty-assertion-clause.js b/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/import-assertions/empty-assertion-clause.js
new file mode 100644
index 00000000000..6913dd61dff
--- /dev/null
+++ b/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/import-assertions/empty-assertion-clause.js
@@ -0,0 +1,2 @@
+import "./hello.js" assert { };
+log.push("empty-assertion-clause");
diff --git a/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/import-assertions/empty-type-assertion.js b/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/import-assertions/empty-type-assertion.js
new file mode 100644
index 00000000000..5bb9b1ddb8e
--- /dev/null
+++ b/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/import-assertions/empty-type-assertion.js
@@ -0,0 +1,2 @@
+import "./hello.js#2" assert { type: "" };
+log.push("empty-type-assertion");
diff --git a/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/import-assertions/hello.js b/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/import-assertions/hello.js
new file mode 100644
index 00000000000..2f348444606
--- /dev/null
+++ b/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/import-assertions/hello.js
@@ -0,0 +1 @@
+log.push("hello");
\ No newline at end of file
diff --git a/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/import-assertions/invalid-type-assertion-error.html b/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/import-assertions/invalid-type-assertion-error.html
new file mode 100644
index 00000000000..d3399f085ce
--- /dev/null
+++ b/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/import-assertions/invalid-type-assertion-error.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<title>Handling of invalid module type import assertions</title>
+
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script>
+    setup({allow_uncaught_exception: true});
+
+    window.log = [];
+
+    window.addEventListener("error", ev => log.push(ev.error));
+
+    const test_load = async_test(
+        "Test that invalid module type assertion leads to TypeError on window.");
+    window.addEventListener("load", test_load.step_func_done(ev => {
+      assert_equals(log.length, 2);
+      assert_equals(log[0].constructor, TypeError);
+      assert_equals(log[1].constructor, TypeError);
+    }));
+
+    function unreachable() { log.push("unexpected"); }
+</script>
+<script type="module" src="./invalid-type-assertion.js" onerror="unreachable()"></script>
+<script type="module" src="./empty-type-assertion.js" onerror="unreachable()"></script>
diff --git a/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/import-assertions/invalid-type-assertion.js b/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/import-assertions/invalid-type-assertion.js
new file mode 100644
index 00000000000..e28c0176d5c
--- /dev/null
+++ b/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/import-assertions/invalid-type-assertion.js
@@ -0,0 +1,2 @@
+import "./hello.js#1" assert { type: "notARealType" };
+log.push("invalid-type-assertion");
diff --git a/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/import-assertions/unsupported-assertion.html b/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/import-assertions/unsupported-assertion.html
new file mode 100644
index 00000000000..edda2d737a3
--- /dev/null
+++ b/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/import-assertions/unsupported-assertion.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<title>Handling of unsupported assertion</title>
+
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script>
+    window.log = [];
+
+    window.addEventListener("error", ev => log.push(ev.error));
+
+    const test_load = async_test(
+        "Test that no error occurs when an unsupported import assertion is provided.");
+    window.addEventListener("load", test_load.step_func_done(ev => {
+      assert_array_equals(window.log, ["hello", "unsupported-assertion"]);
+    }));
+
+    function unreachable() { log.push("unexpected"); }
+</script>
+<script type="module" src="./unsupported-assertion.js" onerror="unreachable()"></script>
diff --git a/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/import-assertions/unsupported-assertion.js b/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/import-assertions/unsupported-assertion.js
new file mode 100644
index 00000000000..45f6d60c9da
--- /dev/null
+++ b/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/import-assertions/unsupported-assertion.js
@@ -0,0 +1,2 @@
+import "./hello.js" assert { unsupportedAssertionKey: "unsupportedAssertionValue" };
+log.push("unsupported-assertion");
diff --git a/tests/wpt/web-platform-tests/intersection-observer/same-document-with-document-root.html b/tests/wpt/web-platform-tests/intersection-observer/same-document-with-document-root.html
new file mode 100644
index 00000000000..15cb7c4cbc2
--- /dev/null
+++ b/tests/wpt/web-platform-tests/intersection-observer/same-document-with-document-root.html
@@ -0,0 +1,60 @@
+<!DOCTYPE html>
+<meta name="viewport" content="width=device-width,initial-scale=1">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="./resources/intersection-observer-test-utils.js"></script>
+
+<style>
+    pre,
+    #log {
+        position: absolute;
+        top: 0;
+        left: 200px;
+    }
+
+    .spacer {
+        height: calc(100vh + 100px);
+    }
+
+    #target {
+        width: 100px;
+        height: 100px;
+        background-color: green;
+    }
+</style>
+
+<div class="spacer"></div>
+<div id="target"></div>
+<div class="spacer"></div>
+
+<script>
+    var vw = document.documentElement.clientWidth;
+    var vh = document.documentElement.clientHeight;
+
+    var entries = [];
+    var target;
+
+    runTestCycle(function () {
+        target = document.getElementById("target");
+        assert_true(!!target, "target exists");
+        var observer = new IntersectionObserver(function (changes) {
+            entries = entries.concat(changes)
+        }, {root: document});
+        observer.observe(target);
+        entries = entries.concat(observer.takeRecords());
+        assert_equals(entries.length, 0, "No initial notifications.");
+        runTestCycle(step0, "First rAF.");
+    }, "IntersectionObserver in a single document using document as root.");
+
+    function step0() {
+        document.scrollingElement.scrollTop = 300;
+        runTestCycle(step1, "document.scrollingElement.scrollTop = 300");
+        checkLastEntry(entries, 0, [8, 108, vh + 108, vh + 208, 0, 0, 0, 0, 0, vw, 0, vh, false]);
+    }
+
+    function step1() {
+        document.scrollingElement.scrollTop = 0;
+        checkLastEntry(entries, 1, [8, 108, vh - 192, vh - 92, 8, 108, vh - 192, vh - 92, 0, vw, 0, vh, true]);
+    }
+</script>
+
diff --git a/tests/wpt/web-platform-tests/pointerevents/pointerevent_auxclick_is_a_pointerevent.html b/tests/wpt/web-platform-tests/pointerevents/pointerevent_auxclick_is_a_pointerevent.html
index 000d0df764e..aac73db9eb7 100644
--- a/tests/wpt/web-platform-tests/pointerevents/pointerevent_auxclick_is_a_pointerevent.html
+++ b/tests/wpt/web-platform-tests/pointerevents/pointerevent_auxclick_is_a_pointerevent.html
@@ -31,7 +31,7 @@ function testFunction(test){
 
 function run_test(pointerType){
   promise_test((test) => new Promise((resolve, reject) => {
-    const testPointer = "TestPointer";
+    const testPointer = pointerType + "TestPointer";
     let auxclickFunc = testFunction(test);
     test.add_cleanup(() => {
       target.removeEventListener("auxclick", auxclickFunc);
diff --git a/tests/wpt/web-platform-tests/pointerevents/pointerevent_click_is_a_pointerevent.html b/tests/wpt/web-platform-tests/pointerevents/pointerevent_click_is_a_pointerevent.html
index dfea148898e..2f5dfd4dbfd 100644
--- a/tests/wpt/web-platform-tests/pointerevents/pointerevent_click_is_a_pointerevent.html
+++ b/tests/wpt/web-platform-tests/pointerevents/pointerevent_click_is_a_pointerevent.html
@@ -31,7 +31,7 @@ function testFunction(test){
 
 function run_test(pointerType){
   promise_test((test) => new Promise((resolve, reject) => {
-    const testPointer = "TestPointer";
+    const testPointer = pointerType + "TestPointer";
     let clickFunc = testFunction(test);
     test.add_cleanup(() => {
       target.removeEventListener("click", clickFunc);
diff --git a/tests/wpt/web-platform-tests/service-workers/service-worker/nested-blob-url-workers.https.html b/tests/wpt/web-platform-tests/service-workers/service-worker/nested-blob-url-workers.https.html
new file mode 100644
index 00000000000..7269cbb701f
--- /dev/null
+++ b/tests/wpt/web-platform-tests/service-workers/service-worker/nested-blob-url-workers.https.html
@@ -0,0 +1,42 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Service Worker: nested blob URL worker clients</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="resources/test-helpers.sub.js"></script>
+<body>
+<script>
+
+const SCRIPT = 'resources/simple-intercept-worker.js';
+const SCOPE = 'resources/';
+const RESOURCE = 'resources/simple.txt';
+
+promise_test((t) => {
+  return runTest(t, 'resources/nested-blob-url-workers.html');
+}, 'Nested blob URL workers should be intercepted by a service worker.');
+
+promise_test((t) => {
+  return runTest(t, 'resources/nested-worker-created-from-blob-url-worker.html');
+}, 'Nested worker created from a blob URL worker should be intercepted by a service worker.');
+
+promise_test((t) => {
+  return runTest(t, 'resources/nested-blob-url-worker-created-from-worker.html');
+}, 'Nested blob URL worker created from a worker should be intercepted by a service worker.');
+
+async function runTest(t, iframe_url) {
+  const reg = await service_worker_unregister_and_register(t, SCRIPT, SCOPE);
+  t.add_cleanup(_ => reg.unregister());
+  await wait_for_state(t, reg.installing, 'activated');
+
+  const frame = await with_iframe(iframe_url);
+  t.add_cleanup(_ => frame.remove());
+  assert_not_equals(frame.contentWindow.navigator.serviceWorker.controller,
+                    null, 'frame should be controlled');
+
+  const response_text = await frame.contentWindow.fetch_in_worker(RESOURCE);
+  assert_equals(response_text, 'intercepted by service worker',
+                'fetch() should be intercepted.');
+}
+
+</script>
+</body>
diff --git a/tests/wpt/web-platform-tests/service-workers/service-worker/resources/create-blob-url-worker.js b/tests/wpt/web-platform-tests/service-workers/service-worker/resources/create-blob-url-worker.js
new file mode 100644
index 00000000000..57e4882c24f
--- /dev/null
+++ b/tests/wpt/web-platform-tests/service-workers/service-worker/resources/create-blob-url-worker.js
@@ -0,0 +1,22 @@
+const childWorkerScript = `
+  self.onmessage = async (e) => {
+    const response = await fetch(e.data);
+    const text = await response.text();
+    self.postMessage(text);
+  };
+`;
+const blob = new Blob([childWorkerScript], { type: 'text/javascript' });
+const blobUrl = URL.createObjectURL(blob);
+const childWorker = new Worker(blobUrl);
+
+// When a message comes from the parent frame, sends a resource url to the child
+// worker.
+self.onmessage = (e) => {
+  childWorker.postMessage(e.data);
+};
+
+// When a message comes from the child worker, sends a content of fetch() to the
+// parent frame.
+childWorker.onmessage = (e) => {
+  self.postMessage(e.data);
+};
diff --git a/tests/wpt/web-platform-tests/service-workers/service-worker/resources/nested-blob-url-worker-created-from-worker.html b/tests/wpt/web-platform-tests/service-workers/service-worker/resources/nested-blob-url-worker-created-from-worker.html
new file mode 100644
index 00000000000..fc048e288e9
--- /dev/null
+++ b/tests/wpt/web-platform-tests/service-workers/service-worker/resources/nested-blob-url-worker-created-from-worker.html
@@ -0,0 +1,16 @@
+<!doctype html>
+<script>
+const baseLocation = window.location;
+const workerUrl = new URL('create-blob-url-worker.js', baseLocation).href;
+const worker = new Worker(workerUrl);
+
+function fetch_in_worker(url) {
+  const resourceUrl = new URL(url, baseLocation).href;
+  return new Promise((resolve) => {
+    worker.onmessage = (event) => {
+      resolve(event.data);
+    };
+    worker.postMessage(resourceUrl);
+  });
+}
+</script>
diff --git a/tests/wpt/web-platform-tests/service-workers/service-worker/resources/nested-blob-url-workers.html b/tests/wpt/web-platform-tests/service-workers/service-worker/resources/nested-blob-url-workers.html
new file mode 100644
index 00000000000..f0eafcd3e01
--- /dev/null
+++ b/tests/wpt/web-platform-tests/service-workers/service-worker/resources/nested-blob-url-workers.html
@@ -0,0 +1,38 @@
+<!doctype html>
+<script>
+const baseLocation = window.location;
+const parentWorkerScript = `
+  const childWorkerScript = 'self.onmessage = async (e) => {' +
+    '  const response = await fetch(e.data);' +
+    '  const text = await response.text();' +
+    '  self.postMessage(text);' +
+    '};';
+  const blob = new Blob([childWorkerScript], { type: 'text/javascript' });
+  const blobUrl = URL.createObjectURL(blob);
+  const childWorker = new Worker(blobUrl);
+
+  // When a message comes from the parent frame, sends a resource url to the
+  // child worker.
+  self.onmessage = (e) => {
+    childWorker.postMessage(e.data);
+  };
+  // When a message comes from the child worker, sends a content of fetch() to
+  // the parent frame.
+  childWorker.onmessage = (e) => {
+    self.postMessage(e.data);
+  };
+`;
+const blob = new Blob([parentWorkerScript], { type: 'text/javascript' });
+const blobUrl = URL.createObjectURL(blob);
+const worker = new Worker(blobUrl);
+
+function fetch_in_worker(url) {
+  const resourceUrl = new URL(url, baseLocation).href;
+  return new Promise((resolve) => {
+    worker.onmessage = (event) => {
+      resolve(event.data);
+    };
+    worker.postMessage(resourceUrl);
+  });
+}
+</script>
diff --git a/tests/wpt/web-platform-tests/service-workers/service-worker/resources/nested-worker-created-from-blob-url-worker.html b/tests/wpt/web-platform-tests/service-workers/service-worker/resources/nested-worker-created-from-blob-url-worker.html
new file mode 100644
index 00000000000..3fad2c9228c
--- /dev/null
+++ b/tests/wpt/web-platform-tests/service-workers/service-worker/resources/nested-worker-created-from-blob-url-worker.html
@@ -0,0 +1,33 @@
+<!doctype html>
+<script>
+const baseLocation = window.location;
+const parentWorkerScript = `
+  const workerUrl =
+    new URL('postmessage-fetched-text.js', '${baseLocation}').href;
+  const childWorker = new Worker(workerUrl);
+
+  // When a message comes from the parent frame, sends a resource url to the
+  // child worker.
+  self.onmessage = (e) => {
+    childWorker.postMessage(e.data);
+  };
+  // When a message comes from the child worker, sends a content of fetch() to
+  // the parent frame.
+  childWorker.onmessage = (e) => {
+    self.postMessage(e.data);
+  };
+`;
+const blob = new Blob([parentWorkerScript], { type: 'text/javascript' });
+const blobUrl = URL.createObjectURL(blob);
+const worker = new Worker(blobUrl);
+
+function fetch_in_worker(url) {
+  const resourceUrl = new URL(url, baseLocation).href;
+  return new Promise((resolve) => {
+    worker.onmessage = (event) => {
+      resolve(event.data);
+    };
+    worker.postMessage(resourceUrl);
+  });
+}
+</script>
diff --git a/tests/wpt/web-platform-tests/service-workers/service-worker/resources/postmessage-fetched-text.js b/tests/wpt/web-platform-tests/service-workers/service-worker/resources/postmessage-fetched-text.js
new file mode 100644
index 00000000000..9fc67171d05
--- /dev/null
+++ b/tests/wpt/web-platform-tests/service-workers/service-worker/resources/postmessage-fetched-text.js
@@ -0,0 +1,5 @@
+self.onmessage = async (e) => {
+  const response = await fetch(e.data);
+  const text = await response.text();
+  self.postMessage(text);
+};
diff --git a/tests/wpt/web-platform-tests/svg/types/scripted/SVGAnimatedEnumeration-SVGFECompositeElement.html b/tests/wpt/web-platform-tests/svg/types/scripted/SVGAnimatedEnumeration-SVGFECompositeElement.html
index e6315b43450..0e99f5fe9cb 100644
--- a/tests/wpt/web-platform-tests/svg/types/scripted/SVGAnimatedEnumeration-SVGFECompositeElement.html
+++ b/tests/wpt/web-platform-tests/svg/types/scripted/SVGAnimatedEnumeration-SVGFECompositeElement.html
@@ -34,13 +34,18 @@ test(function() {
   assert_equals(feCompositeElement.operator.baseVal, SVGFECompositeElement.SVG_FECOMPOSITE_OPERATOR_XOR);
   assert_equals(feCompositeElement.getAttribute('operator'), "xor");
 
+  // Switch to 'lighter'.
+  feCompositeElement.operator.baseVal = SVGFECompositeElement.SVG_FECOMPOSITE_OPERATOR_LIGHTER;
+  assert_equals(feCompositeElement.operator.baseVal, SVGFECompositeElement.SVG_FECOMPOSITE_OPERATOR_LIGHTER);
+  assert_equals(feCompositeElement.getAttribute('operator'), "lighter");
+
   // Switch to 'arithmetic'.
   feCompositeElement.operator.baseVal = SVGFECompositeElement.SVG_FECOMPOSITE_OPERATOR_ARITHMETIC;
   assert_equals(feCompositeElement.operator.baseVal, SVGFECompositeElement.SVG_FECOMPOSITE_OPERATOR_ARITHMETIC);
   assert_equals(feCompositeElement.getAttribute('operator'), "arithmetic");
 
   // Try setting invalid values.
-  assert_throws_js(TypeError, function() { feCompositeElement.operator.baseVal = 7; });
+  assert_throws_js(TypeError, function() { feCompositeElement.operator.baseVal = 8; });
   assert_equals(feCompositeElement.operator.baseVal, SVGFECompositeElement.SVG_FECOMPOSITE_OPERATOR_ARITHMETIC);
   assert_equals(feCompositeElement.getAttribute('operator'), "arithmetic");
 
@@ -56,10 +61,5 @@ test(function() {
   feCompositeElement.operator.baseVal = SVGFECompositeElement.SVG_FECOMPOSITE_OPERATOR_OVER;
   assert_equals(feCompositeElement.operator.baseVal, SVGFECompositeElement.SVG_FECOMPOSITE_OPERATOR_OVER);
   assert_equals(feCompositeElement.getAttribute('operator'), "over");
-
-  // Switch to 'lighter'.
-  assert_equals(SVGFECompositeElement.SVG_FECOMPOSITE_OPERATOR_LIGHTER, undefined);
-  feCompositeElement.setAttribute("operator", "lighter");
-  assert_equals(feCompositeElement.operator.baseVal, SVGFECompositeElement.SVG_FECOMPOSITE_OPERATOR_UNKNOWN);
 });
-</script>
\ No newline at end of file
+</script>
diff --git a/tests/wpt/web-platform-tests/tools/ci/azure/safari-technology-preview.rb b/tests/wpt/web-platform-tests/tools/ci/azure/safari-technology-preview.rb
index c78bcef5c45..628c5f60914 100644
--- a/tests/wpt/web-platform-tests/tools/ci/azure/safari-technology-preview.rb
+++ b/tests/wpt/web-platform-tests/tools/ci/azure/safari-technology-preview.rb
@@ -1,10 +1,10 @@
 cask "safari-technology-preview" do
   if MacOS.version <= :catalina
-    version "117,001-86197-20201209-2fd0fe89-0c37-412d-99e2-4e288519e886"
-    sha256 "739630b43a8f021cc246b2c8f610b759e82a6336830d34dac1f388763e7cceea"
+    version "118,001-92142-20210105-a1c7713a-1f38-411e-85e3-c650a62d5c06"
+    sha256 "8ffd7f83166106992cfc65a9760efe61578b55e1d8a1c960d56867f2048bd953"
   else
-    version "117,001-86222-20201209-8021be92-32b3-403f-b9a7-630ab8e91afb"
-    sha256 "2dc42342e1e3fdd95086dfbd3a8588f1e2d181fbd4f8bb279994be0c2e57ff6f"
+    version "118,001-92171-20210105-8d3c22a7-e518-4758-8df4-fe87c4fa078a"
+    sha256 "98c60037f4dace62ca78d5bc3ab6974c9ca078f60fe2a82062bbc8e3cbcfc55a"
   end
 
   url "https://secure-appldnld.apple.com/STP/#{version.after_comma}/SafariTechnologyPreview.dmg"
diff --git a/tests/wpt/web-platform-tests/tools/manifest/log.py b/tests/wpt/web-platform-tests/tools/manifest/log.py
index 9e2ad74081e..6551c2b5f7c 100644
--- a/tests/wpt/web-platform-tests/tools/manifest/log.py
+++ b/tests/wpt/web-platform-tests/tools/manifest/log.py
@@ -1,15 +1,10 @@
 import logging
-import sys
 
 logger = logging.getLogger("manifest")
 
-def setup():
+def enable_debug_logging():
     # type: () -> None
     logger.setLevel(logging.DEBUG)
-    handler = logging.StreamHandler(sys.stdout)
-    formatter = logging.Formatter(logging.BASIC_FORMAT, None)
-    handler.setFormatter(formatter)
-    logger.addHandler(handler)
 
 def get_logger():
     # type: () -> logging.Logger
diff --git a/tests/wpt/web-platform-tests/tools/manifest/manifest.py b/tests/wpt/web-platform-tests/tools/manifest/manifest.py
index 14d3844d461..1b4f407b962 100644
--- a/tests/wpt/web-platform-tests/tools/manifest/manifest.py
+++ b/tests/wpt/web-platform-tests/tools/manifest/manifest.py
@@ -1,6 +1,7 @@
 import io
 import itertools
 import os
+import sys
 from atomicwrites import atomic_write
 from copy import deepcopy
 from multiprocessing import Pool, cpu_count
@@ -173,6 +174,8 @@ class Manifest(object):
         constructed in the case we are not updating a path, but the absence of an item from
         the iterator may be used to remove defunct entries from the manifest."""
 
+        logger = get_logger()
+
         changed = False
 
         # Create local variable references to these dicts so we avoid the
@@ -221,20 +224,33 @@ class Manifest(object):
                     to_update.append(source_file)
 
         if to_update:
+            logger.debug("Computing manifest update for %s items" % len(to_update))
             changed = True
 
+
+        # 25 items was derived experimentally (2020-01) to be approximately the
+        # point at which it is quicker to create a Pool and parallelize update.
         if parallel and len(to_update) > 25 and cpu_count() > 1:
-            # 25 derived experimentally (2020-01) to be approximately
-            # the point at which it is quicker to create Pool and
-            # parallelize this
-            pool = Pool()
+            # On Python 3 on Windows, using >= MAXIMUM_WAIT_OBJECTS processes
+            # causes a crash in the multiprocessing module. Whilst this enum
+            # can technically have any value, it is usually 64. For safety,
+            # restrict manifest regeneration to 48 processes on Windows.
+            #
+            # See https://bugs.python.org/issue26903 and https://bugs.python.org/issue40263
+            processes = cpu_count()
+            if sys.platform == "win32" and processes > 48:
+                processes = 48
+            pool = Pool(processes)
 
             # chunksize set > 1 when more than 10000 tests, because
             # chunking is a net-gain once we get to very large numbers
             # of items (again, experimentally, 2020-01)
+            chunksize = max(1, len(to_update) // 10000)
+            logger.debug("Doing a multiprocessed update. CPU count: %s, "
+                "processes: %s, chunksize: %s" % (cpu_count(), processes, chunksize))
             results = pool.imap_unordered(compute_manifest_items,
                                           to_update,
-                                          chunksize=max(1, len(to_update) // 10000)
+                                          chunksize=chunksize
                                           )  # type: Iterator[Tuple[Tuple[Text, ...], Text, Set[ManifestItem], Text]]
         elif PY3:
             results = map(compute_manifest_items, to_update)
@@ -444,6 +460,7 @@ def _load_and_update(tests_root,  # type: Text
         update = True
 
     if rebuild or update:
+        logger.info("Updating manifest")
         for retry in range(2):
             try:
                 tree = vcs.get_tree(tests_root, manifest, manifest_path, cache_root,
diff --git a/tests/wpt/web-platform-tests/tools/manifest/update.py b/tests/wpt/web-platform-tests/tools/manifest/update.py
index 296533a6bab..a86ef7c8aa2 100755
--- a/tests/wpt/web-platform-tests/tools/manifest/update.py
+++ b/tests/wpt/web-platform-tests/tools/manifest/update.py
@@ -4,7 +4,7 @@ import os
 
 from . import manifest
 from . import vcs
-from .log import get_logger
+from .log import get_logger, enable_debug_logging
 from .download import download_from_github
 
 here = os.path.dirname(__file__)
@@ -64,6 +64,9 @@ def abs_path(path):
 def create_parser():
     # type: () -> argparse.ArgumentParser
     parser = argparse.ArgumentParser()
+    parser.add_argument(
+        "-v", "--verbose", dest="verbose", action="store_true", default=False,
+        help="Turn on verbose logging")
     parser.add_argument(
         "-p", "--path", type=abs_path, help="Path to manifest file.")
     parser.add_argument(
@@ -90,6 +93,8 @@ def run(*args, **kwargs):
     # type: (*Any, **Any) -> None
     if kwargs["path"] is None:
         kwargs["path"] = os.path.join(kwargs["tests_root"], "MANIFEST.json")
+    if kwargs["verbose"]:
+        enable_debug_logging()
     update_from_cli(**kwargs)
 
 
diff --git a/tests/wpt/web-platform-tests/xhr/event-timeout.any.js b/tests/wpt/web-platform-tests/xhr/event-timeout.any.js
index da8ca11bb8e..c73cd1a4854 100644
--- a/tests/wpt/web-platform-tests/xhr/event-timeout.any.js
+++ b/tests/wpt/web-platform-tests/xhr/event-timeout.any.js
@@ -14,5 +14,5 @@ test.step(function () {
   client.send(null);
   test.step_timeout(() => {
     assert_unreached("ontimeout not called.");
-  }, 10);
+  }, 1000);
 });