diff --git a/tests/wpt/metadata-layout-2020/FileAPI/url/url-in-tags-revoke.window.js.ini b/tests/wpt/metadata-layout-2020/FileAPI/url/url-in-tags-revoke.window.js.ini
index 76b44d9e9cf..3605e8f3fc9 100644
--- a/tests/wpt/metadata-layout-2020/FileAPI/url/url-in-tags-revoke.window.js.ini
+++ b/tests/wpt/metadata-layout-2020/FileAPI/url/url-in-tags-revoke.window.js.ini
@@ -4,7 +4,7 @@
     expected: TIMEOUT
 
   [Opening a blob URL in a new window immediately before revoking it works.]
-    expected: FAIL
+    expected: TIMEOUT
 
   [Fetching a blob URL immediately before revoking it works in an iframe.]
     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/css-transforms/transform-scale-hittest.html.ini b/tests/wpt/metadata-layout-2020/css/css-transforms/transform-scale-hittest.html.ini
index 4a1e8110f6f..f8e7e539aae 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
@@ -2,3 +2,6 @@
   [Hit test intersecting scaled box]
     expected: FAIL
 
+  [Hit test within unscaled box]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata-layout-2020/css/cssom-view/elementFromPoint-001.html.ini b/tests/wpt/metadata-layout-2020/css/cssom-view/elementFromPoint-001.html.ini
deleted file mode 100644
index e38782d8c85..00000000000
--- a/tests/wpt/metadata-layout-2020/css/cssom-view/elementFromPoint-001.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[elementFromPoint-001.html]
-  [CSSOM View - 5 - extensions to the Document interface]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata-layout-2020/css/cssom-view/elementsFromPoint-iframes.html.ini b/tests/wpt/metadata-layout-2020/css/cssom-view/elementsFromPoint-iframes.html.ini
index 171592fc08f..6ef8bb1049f 100644
--- a/tests/wpt/metadata-layout-2020/css/cssom-view/elementsFromPoint-iframes.html.ini
+++ b/tests/wpt/metadata-layout-2020/css/cssom-view/elementsFromPoint-iframes.html.ini
@@ -2,3 +2,6 @@
   [elementsFromPoint on the root document for points in iframe elements]
     expected: FAIL
 
+  [elementsFromPoint on inner documents]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata-layout-2020/css/cssom-view/elementsFromPoint-invalid-cases.html.ini b/tests/wpt/metadata-layout-2020/css/cssom-view/elementsFromPoint-invalid-cases.html.ini
new file mode 100644
index 00000000000..e181af5397f
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/css/cssom-view/elementsFromPoint-invalid-cases.html.ini
@@ -0,0 +1,4 @@
+[elementsFromPoint-invalid-cases.html]
+  [The root element is the last element returned for otherwise empty queries within the viewport]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata-layout-2020/css/selectors/selectors-dir-selector-auto.html.ini b/tests/wpt/metadata-layout-2020/css/selectors/selectors-dir-selector-auto.html.ini
new file mode 100644
index 00000000000..f533b7df909
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/css/selectors/selectors-dir-selector-auto.html.ini
@@ -0,0 +1,2 @@
+[selectors-dir-selector-auto.html]
+  expected: ERROR
diff --git a/tests/wpt/metadata-layout-2020/css/selectors/selectors-dir-selector-change-001.html.ini b/tests/wpt/metadata-layout-2020/css/selectors/selectors-dir-selector-change-001.html.ini
new file mode 100644
index 00000000000..50e0e6623b2
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/css/selectors/selectors-dir-selector-change-001.html.ini
@@ -0,0 +1,2 @@
+[selectors-dir-selector-change-001.html]
+  expected: FAIL
diff --git a/tests/wpt/metadata-layout-2020/css/selectors/selectors-dir-selector-change-002.html.ini b/tests/wpt/metadata-layout-2020/css/selectors/selectors-dir-selector-change-002.html.ini
new file mode 100644
index 00000000000..25232bb1f27
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/css/selectors/selectors-dir-selector-change-002.html.ini
@@ -0,0 +1,2 @@
+[selectors-dir-selector-change-002.html]
+  expected: FAIL
diff --git a/tests/wpt/metadata-layout-2020/css/selectors/selectors-dir-selector-change-003.html.ini b/tests/wpt/metadata-layout-2020/css/selectors/selectors-dir-selector-change-003.html.ini
new file mode 100644
index 00000000000..e6a4e5e8af7
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/css/selectors/selectors-dir-selector-change-003.html.ini
@@ -0,0 +1,2 @@
+[selectors-dir-selector-change-003.html]
+  expected: FAIL
diff --git a/tests/wpt/metadata-layout-2020/css/selectors/selectors-dir-selector-change-004.html.ini b/tests/wpt/metadata-layout-2020/css/selectors/selectors-dir-selector-change-004.html.ini
new file mode 100644
index 00000000000..c72af09bf92
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/css/selectors/selectors-dir-selector-change-004.html.ini
@@ -0,0 +1,2 @@
+[selectors-dir-selector-change-004.html]
+  expected: FAIL
diff --git a/tests/wpt/metadata-layout-2020/css/selectors/selectors-dir-selector-querySelector.html.ini b/tests/wpt/metadata-layout-2020/css/selectors/selectors-dir-selector-querySelector.html.ini
new file mode 100644
index 00000000000..1b47c19cf14
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/css/selectors/selectors-dir-selector-querySelector.html.ini
@@ -0,0 +1,10 @@
+[selectors-dir-selector-querySelector.html]
+  [:dir() works in compound selectors]
+    expected: FAIL
+
+  [:dir() works in complex selectors]
+    expected: FAIL
+
+  [:dir() allows any ident value but strings other than ltr/rtl don't match]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata-layout-2020/css/selectors/selectors-dir-selector-white-space-001.html.ini b/tests/wpt/metadata-layout-2020/css/selectors/selectors-dir-selector-white-space-001.html.ini
new file mode 100644
index 00000000000..566cd31c34f
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/css/selectors/selectors-dir-selector-white-space-001.html.ini
@@ -0,0 +1,2 @@
+[selectors-dir-selector-white-space-001.html]
+  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 30d40e8adee..f0c92506849 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
@@ -309,21 +309,18 @@
   [Response: combined response Content-Type: text/html;" \\" text/plain ";charset=GBK]
     expected: NOTRUN
 
-  [<iframe>: combined response Content-Type: text/html;" text/plain]
-    expected: FAIL
-
-  [<iframe>: separate response Content-Type: text/plain */*;charset=gbk]
-    expected: FAIL
-
   [<iframe>: combined response Content-Type: */* text/html]
     expected: FAIL
 
-  [<iframe>: separate response Content-Type: text/plain */*]
+  [<iframe>: separate response Content-Type: text/html */*;charset=gbk]
     expected: FAIL
 
-  [<iframe>: combined response Content-Type: text/html;" \\" text/plain]
+  [<iframe>: combined response Content-Type: text/html */*;charset=gbk]
     expected: FAIL
 
-  [<iframe>: combined response Content-Type: text/html;x=" text/plain]
+  [<iframe>: separate response Content-Type: text/html;x=" text/plain]
+    expected: FAIL
+
+  [<iframe>: separate response Content-Type: text/html;" \\" text/plain]
     expected: FAIL
 
diff --git a/tests/wpt/metadata-layout-2020/fetch/content-type/script.window.js.ini b/tests/wpt/metadata-layout-2020/fetch/content-type/script.window.js.ini
index 5c001592859..d2df9b78483 100644
--- a/tests/wpt/metadata-layout-2020/fetch/content-type/script.window.js.ini
+++ b/tests/wpt/metadata-layout-2020/fetch/content-type/script.window.js.ini
@@ -56,6 +56,3 @@
   [separate text/javascript x/x]
     expected: FAIL
 
-  [separate text/javascript;charset=windows-1252 error text/javascript]
-    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 30e1b851fd4..aa6eb8f6085 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
@@ -11,3 +11,6 @@
   [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'NosniFF']
+    expected: FAIL
+
diff --git a/tests/wpt/metadata-layout-2020/html/browsers/history/the-history-interface/traverse_the_history_1.html.ini b/tests/wpt/metadata-layout-2020/html/browsers/history/the-history-interface/traverse_the_history_1.html.ini
deleted file mode 100644
index 87b07c3e670..00000000000
--- a/tests/wpt/metadata-layout-2020/html/browsers/history/the-history-interface/traverse_the_history_1.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[traverse_the_history_1.html]
-  [Multiple history traversals from the same task]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata-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
deleted file mode 100644
index dc2e45516de..00000000000
--- a/tests/wpt/metadata-layout-2020/html/browsers/history/the-history-interface/traverse_the_history_5.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[traverse_the_history_5.html]
-  [Multiple history traversals, last would be aborted]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata-layout-2020/html/browsers/origin/cross-origin-objects/cross-origin-objects-on-new-window.html.ini b/tests/wpt/metadata-layout-2020/html/browsers/origin/cross-origin-objects/cross-origin-objects-on-new-window.html.ini
new file mode 100644
index 00000000000..735a9a75a2a
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/html/browsers/origin/cross-origin-objects/cross-origin-objects-on-new-window.html.ini
@@ -0,0 +1,2 @@
+[cross-origin-objects-on-new-window.html]
+  expected: TIMEOUT
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-1.html.ini b/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-1.html.ini
index 42ebcc9d57e..88f4ddd0e9a 100644
--- a/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-1.html.ini
+++ b/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-1.html.ini
@@ -1,5 +1,5 @@
 [iframe_sandbox_popups_escaping-1.html]
-  expected: TIMEOUT
+  expected: CRASH
   [Check that popups from a sandboxed iframe escape the sandbox if\n       allow-popups-to-escape-sandbox is used]
     expected: TIMEOUT
 
diff --git a/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-1.html.ini b/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-1.html.ini
index 3080be9afc0..d913fcbb129 100644
--- a/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-1.html.ini
+++ b/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-1.html.ini
@@ -1,5 +1,5 @@
 [iframe_sandbox_popups_nonescaping-1.html]
-  expected: CRASH
+  expected: TIMEOUT
   [Check that popups from a sandboxed iframe do not escape the sandbox]
     expected: NOTRUN
 
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 7a36937927c..f4f994c5d6f 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
@@ -1,4 +1,5 @@
 [iframe_sandbox_popups_nonescaping-3.html]
+  expected: TIMEOUT
   [Check that popups from a sandboxed iframe do not escape the sandbox]
-    expected: FAIL
+    expected: NOTRUN
 
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-3.html.ini b/tests/wpt/metadata-layout-2020/html/semantics/forms/form-submission-0/form-double-submit-3.html.ini
new file mode 100644
index 00000000000..9f416703229
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/html/semantics/forms/form-submission-0/form-double-submit-3.html.ini
@@ -0,0 +1,4 @@
+[form-double-submit-3.html]
+  [<button> should have the same double-submit protection as <input type=submit>]
+    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/form-submission-0/newline-normalization.html.ini b/tests/wpt/metadata-layout-2020/html/semantics/forms/form-submission-0/newline-normalization.html.ini
index ff5e9edab6a..e3f768f1c8e 100644
--- a/tests/wpt/metadata-layout-2020/html/semantics/forms/form-submission-0/newline-normalization.html.ini
+++ b/tests/wpt/metadata-layout-2020/html/semantics/forms/form-submission-0/newline-normalization.html.ini
@@ -11,3 +11,15 @@
   [Form newline normalization: \\r in the name becomes \\r\\n]
     expected: FAIL
 
+  [Form newline normalization: \\r\\n in the filename stays unchanged]
+    expected: FAIL
+
+  [Form newline normalization: \\n in the filename stays unchanged]
+    expected: FAIL
+
+  [Form newline normalization: \\r in the filename stays unchanged]
+    expected: FAIL
+
+  [Form newline normalization: \\n\\r in the filename stays unchanged]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata-layout-2020/html/webappapis/dynamic-markup-insertion/document-write/iframe_005.html.ini b/tests/wpt/metadata-layout-2020/html/webappapis/dynamic-markup-insertion/document-write/iframe_005.html.ini
deleted file mode 100644
index 6cf9d13975c..00000000000
--- a/tests/wpt/metadata-layout-2020/html/webappapis/dynamic-markup-insertion/document-write/iframe_005.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[iframe_005.html]
-  [document.write external script into iframe write back into parent]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata-layout-2020/html/webappapis/scripting/events/compile-event-handler-settings-objects.html.ini b/tests/wpt/metadata-layout-2020/html/webappapis/scripting/events/compile-event-handler-settings-objects.html.ini
index 450c88bd32b..dbec6f2c2ff 100644
--- a/tests/wpt/metadata-layout-2020/html/webappapis/scripting/events/compile-event-handler-settings-objects.html.ini
+++ b/tests/wpt/metadata-layout-2020/html/webappapis/scripting/events/compile-event-handler-settings-objects.html.ini
@@ -3,6 +3,3 @@
   [The incumbent settings object while executing the compiled callback via Web IDL's invoke must be that of the node document]
     expected: TIMEOUT
 
-  [The entry settings object while executing the compiled callback via Web IDL's invoke must be that of the node document]
-    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 ea08eda3f8e..6fc6a274b98 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
@@ -359,3 +359,9 @@
   [X SNR (-47.5135609418513 dB) is not greater than or equal to 65.737. Got -47.5135609418513.]
     expected: FAIL
 
+  [X SNR (-47.70129108083442 dB) is not greater than or equal to 65.737. Got -47.70129108083442.]
+    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\]\t3.6039609375000000e+4\t9.3139332532882690e-1\t3.6038677981674671e+4\t3.8693296378252737e+4\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 3.6038677981674671e+4 at index of 28696.\n\tMax RelError of 3.8693296378252737e+4 at index of 28696.\n]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata-layout-2020/webmessaging/with-ports/017.html.ini b/tests/wpt/metadata-layout-2020/webmessaging/with-ports/017.html.ini
new file mode 100644
index 00000000000..064cf47545b
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/webmessaging/with-ports/017.html.ini
@@ -0,0 +1,5 @@
+[017.html]
+  expected: TIMEOUT
+  [origin of the script that invoked the method, about:blank]
+    expected: TIMEOUT
+
diff --git a/tests/wpt/metadata-layout-2020/webmessaging/without-ports/017.html.ini b/tests/wpt/metadata-layout-2020/webmessaging/without-ports/017.html.ini
new file mode 100644
index 00000000000..064cf47545b
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/webmessaging/without-ports/017.html.ini
@@ -0,0 +1,5 @@
+[017.html]
+  expected: TIMEOUT
+  [origin of the script that invoked the method, about:blank]
+    expected: TIMEOUT
+
diff --git a/tests/wpt/metadata-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/FileAPI/url/url-in-tags-revoke.window.js.ini b/tests/wpt/metadata/FileAPI/url/url-in-tags-revoke.window.js.ini
index d4f62ed7113..faa00f45ecf 100644
--- a/tests/wpt/metadata/FileAPI/url/url-in-tags-revoke.window.js.ini
+++ b/tests/wpt/metadata/FileAPI/url/url-in-tags-revoke.window.js.ini
@@ -7,7 +7,7 @@
     expected: FAIL
 
   [Opening a blob URL in a new window immediately before revoking it works.]
-    expected: FAIL
+    expected: TIMEOUT
 
   [Opening a blob URL in a noopener about:blank window immediately before revoking it works.]
     expected: TIMEOUT
diff --git a/tests/wpt/metadata/MANIFEST.json b/tests/wpt/metadata/MANIFEST.json
index 9962c4f4452..97e92e8de46 100644
--- a/tests/wpt/metadata/MANIFEST.json
+++ b/tests/wpt/metadata/MANIFEST.json
@@ -153416,6 +153416,19 @@
         {}
        ]
       ],
+      "abs-pos-004.html": [
+       "b66143c36c135e2dc535cdf7efee3bbed8952f17",
+       [
+        null,
+        [
+         [
+          "/css/css-grid/subgrid/abs-pos-004-ref.html",
+          "=="
+         ]
+        ],
+        {}
+       ]
+      ],
       "auto-track-sizing-001.html": [
        "0fdb9b0b7e2ed8855b02dcfb9baceeb61b7d05d3",
        [
@@ -225183,6 +225196,58 @@
        {}
       ]
      ],
+     "selectors-dir-selector-change-001.html": [
+      "f952389643834f4a67062bf722d5ce4422253094",
+      [
+       null,
+       [
+        [
+         "/css/selectors/selectors-dir-selector-change-001-ref.html",
+         "=="
+        ]
+       ],
+       {}
+      ]
+     ],
+     "selectors-dir-selector-change-002.html": [
+      "bc032b59541335d49f7ffe56919cfad9b7cd2fee",
+      [
+       null,
+       [
+        [
+         "/css/reference/ref-filled-green-100px-square.xht",
+         "=="
+        ]
+       ],
+       {}
+      ]
+     ],
+     "selectors-dir-selector-change-003.html": [
+      "f4000155a8d5004b401ce5964f535979cc4ec256",
+      [
+       null,
+       [
+        [
+         "/css/selectors/selectors-dir-selector-change-003-ref.html",
+         "=="
+        ]
+       ],
+       {}
+      ]
+     ],
+     "selectors-dir-selector-change-004.html": [
+      "4c76b291bad7ffde21d624a3abc03c7b3cc99ac9",
+      [
+       null,
+       [
+        [
+         "/css/selectors/selectors-dir-selector-change-004-ref.html",
+         "=="
+        ]
+       ],
+       {}
+      ]
+     ],
      "selectors-dir-selector-ltr-001.html": [
       "9b90832a218debcf98a8a23bed7b0e679bd472ac",
       [
@@ -225196,6 +225261,32 @@
        {}
       ]
      ],
+     "selectors-dir-selector-ltr-002.html": [
+      "bbb3f26a780b13d434d99ca858b44f7db635047b",
+      [
+       null,
+       [
+        [
+         "/css/reference/ref-filled-green-100px-square.xht",
+         "=="
+        ]
+       ],
+       {}
+      ]
+     ],
+     "selectors-dir-selector-ltr-003.html": [
+      "821a33616fca6940618d3e27c07963eba4c0f748",
+      [
+       null,
+       [
+        [
+         "/css/reference/ref-filled-green-100px-square.xht",
+         "=="
+        ]
+       ],
+       {}
+      ]
+     ],
      "selectors-dir-selector-rtl-001.html": [
       "9b7bfd090a3c6736c3a30329912558c3c31f32fc",
       [
@@ -225209,6 +225300,19 @@
        {}
       ]
      ],
+     "selectors-dir-selector-white-space-001.html": [
+      "d3128a03734dc9806e3136ef6657b6087d9d76fa",
+      [
+       null,
+       [
+        [
+         "/css/selectors/selectors-dir-selector-white-space-001-ref.html",
+         "=="
+        ]
+       ],
+       {}
+      ]
+     ],
      "selectors-empty-001.xml": [
       "3b882debcc717c3e85de8695476eca3fd5238e8a",
       [
@@ -260813,6 +260917,12 @@
      "19a0bfaed3f0aa1b498c275ac43100dbcb23010b",
      []
     ],
+    "resources": {
+     "concatenate-stream.js": [
+      "a35bb1416e754893e331c0089d97720ae3b5af8e",
+      []
+     ]
+    },
     "third_party": {
      "pako": {
       "LICENSE": [
@@ -312587,6 +312697,10 @@
        "19180106e548c8a183ba903b7b9c6f3e443d79a9",
        []
       ],
+      "abs-pos-004-ref.html": [
+       "ac47309df22993903294406748b4152b27ff0a33",
+       []
+      ],
       "auto-track-sizing-001-ref.html": [
        "800f87e5d00a767f1cb5e5816ffd46110fbd4e80",
        []
@@ -328592,6 +328706,22 @@
       "3b768b36a50cd46c3fae0de91c63f8231fde7811",
       []
      ],
+     "selectors-dir-selector-change-001-ref.html": [
+      "8c79c8328f0b2bf88b320956efdd689a97130550",
+      []
+     ],
+     "selectors-dir-selector-change-003-ref.html": [
+      "8c79c8328f0b2bf88b320956efdd689a97130550",
+      []
+     ],
+     "selectors-dir-selector-change-004-ref.html": [
+      "9a130cb2e5c71b9948e68022ad6ef89cc0ecda05",
+      []
+     ],
+     "selectors-dir-selector-white-space-001-ref.html": [
+      "955a2dd603d625975934e1ed6a42b4ea077093b7",
+      []
+     ],
      "selectors-empty-001-ref.xml": [
       "3f1b3f42a89399fec3ca03c4f69aa1e75527a0a3",
       []
@@ -369193,7 +369323,7 @@
       ]
      },
      "setup.py": [
-      "759cb48d1f65f52f6500ed2b871c7ef430518ab6",
+      "a9cc95f4c1a532b5682de4db367899ad9c5de284",
       []
      ],
      "tests": {
@@ -393845,6 +393975,69 @@
       }
      ]
     ],
+    "compression-with-detach.tentative.any.js": [
+     "786bba21c800ca9f067a6d033f0345a52bfbb218",
+     [
+      "compression/compression-with-detach.tentative.any.html",
+      {
+       "script_metadata": [
+        [
+         "global",
+         "window,worker"
+        ],
+        [
+         "script",
+         "resources/concatenate-stream.js"
+        ]
+       ]
+      }
+     ],
+     [
+      "compression/compression-with-detach.tentative.any.serviceworker.html",
+      {
+       "script_metadata": [
+        [
+         "global",
+         "window,worker"
+        ],
+        [
+         "script",
+         "resources/concatenate-stream.js"
+        ]
+       ]
+      }
+     ],
+     [
+      "compression/compression-with-detach.tentative.any.sharedworker.html",
+      {
+       "script_metadata": [
+        [
+         "global",
+         "window,worker"
+        ],
+        [
+         "script",
+         "resources/concatenate-stream.js"
+        ]
+       ]
+      }
+     ],
+     [
+      "compression/compression-with-detach.tentative.any.worker.html",
+      {
+       "script_metadata": [
+        [
+         "global",
+         "window,worker"
+        ],
+        [
+         "script",
+         "resources/concatenate-stream.js"
+        ]
+       ]
+      }
+     ]
+    ],
     "decompression-bad-chunks.tentative.any.js": [
      "ba609a5625b959362222f85371628827f44d8768",
      [
@@ -394205,6 +394398,69 @@
       }
      ]
     ],
+    "decompression-with-detach.tentative.any.js": [
+     "a2f8bda09148f0d323022b1f93be78d83c4aa654",
+     [
+      "compression/decompression-with-detach.tentative.any.html",
+      {
+       "script_metadata": [
+        [
+         "global",
+         "window,worker"
+        ],
+        [
+         "script",
+         "resources/concatenate-stream.js"
+        ]
+       ]
+      }
+     ],
+     [
+      "compression/decompression-with-detach.tentative.any.serviceworker.html",
+      {
+       "script_metadata": [
+        [
+         "global",
+         "window,worker"
+        ],
+        [
+         "script",
+         "resources/concatenate-stream.js"
+        ]
+       ]
+      }
+     ],
+     [
+      "compression/decompression-with-detach.tentative.any.sharedworker.html",
+      {
+       "script_metadata": [
+        [
+         "global",
+         "window,worker"
+        ],
+        [
+         "script",
+         "resources/concatenate-stream.js"
+        ]
+       ]
+      }
+     ],
+     [
+      "compression/decompression-with-detach.tentative.any.worker.html",
+      {
+       "script_metadata": [
+        [
+         "global",
+         "window,worker"
+        ],
+        [
+         "script",
+         "resources/concatenate-stream.js"
+        ]
+       ]
+      }
+     ]
+    ],
     "idlharness.https.any.js": [
      "8d96cf523c495389ec5bfdea921a65d4dd0cd1e3",
      [
@@ -415507,7 +415763,7 @@
        ]
       ],
       "column-widths.html": [
-       "52cb5b6fb0502cd63e2404168cfd413d86d60b6e",
+       "b151c2263bb625c0ec4bd2e2159b7bf15602fc63",
        [
         null,
         {}
@@ -426621,6 +426877,20 @@
        {}
       ]
      ],
+     "selectors-dir-selector-auto.html": [
+      "d53e989f69e172ea8cb0eb0a11863c767f4f5bf2",
+      [
+       null,
+       {}
+      ]
+     ],
+     "selectors-dir-selector-querySelector.html": [
+      "a05e3fea78f378e37c1b73f7f9e2e3559db12f16",
+      [
+       null,
+       {}
+      ]
+     ],
      "user-invalid.html": [
       "05cf2b679039c61732054217cf562bfeb7c3d23a",
       [
@@ -485253,7 +485523,7 @@
         ]
        ],
        "newline-normalization.html": [
-        "d3de7699662da75fc37fba31cf994f02a13de191",
+        "b49468e19991e9309282e3068efff859d1c66751",
         [
          null,
          {}
@@ -499961,6 +500231,15 @@
       }
      ]
     ],
+    "MediaStreamTrack-clone.https.html": [
+     "c2b3e2bf8ab1b8c32cdc207181240c695e202656",
+     [
+      null,
+      {
+       "testdriver": true
+      }
+     ]
+    ],
     "MediaStreamTrack-getCapabilities-fast.html": [
      "55272d1499517a6fda0b7e06068928b4e1127b27",
      [
@@ -503092,7 +503371,7 @@
      ]
     ],
     "showPicker-errors.https.window.js": [
-     "e8f0d3f540485120cd15d642b1b0d33110797098",
+     "d1dabf37da8305094bf7e0bd0fea4e0200d8dd2e",
      [
       "native-file-system/showPicker-errors.https.window.html",
       {
@@ -530263,7 +530542,7 @@
     ],
     "readable-byte-streams": {
      "bad-buffers-and-views.any.js": [
-      "0777208da44b29b822bf9345dbe20e33bb5708b9",
+      "d4ad483d9c39566b8bc5b4d09676d05eac8879e5",
       [
        null,
        {
@@ -545686,7 +545965,7 @@
        ]
       ],
       "ctor-audiobuffer.html": [
-       "9845d5eaba384cced3c63ddbf4df1400b31f4994",
+       "fbe6e42e3178f84d108bfd1c62518a4d13eb2dff",
        [
         null,
         {}
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/css-transforms/transform-scale-hittest.html.ini b/tests/wpt/metadata/css/css-transforms/transform-scale-hittest.html.ini
index 4a1e8110f6f..f8e7e539aae 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
@@ -2,3 +2,6 @@
   [Hit test intersecting scaled box]
     expected: FAIL
 
+  [Hit test within unscaled box]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/cssom-view/elementFromPoint-001.html.ini b/tests/wpt/metadata/css/cssom-view/elementFromPoint-001.html.ini
deleted file mode 100644
index e38782d8c85..00000000000
--- a/tests/wpt/metadata/css/cssom-view/elementFromPoint-001.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[elementFromPoint-001.html]
-  [CSSOM View - 5 - extensions to the Document interface]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/css/cssom-view/elementsFromPoint-iframes.html.ini b/tests/wpt/metadata/css/cssom-view/elementsFromPoint-iframes.html.ini
index 171592fc08f..6ef8bb1049f 100644
--- a/tests/wpt/metadata/css/cssom-view/elementsFromPoint-iframes.html.ini
+++ b/tests/wpt/metadata/css/cssom-view/elementsFromPoint-iframes.html.ini
@@ -2,3 +2,6 @@
   [elementsFromPoint on the root document for points in iframe elements]
     expected: FAIL
 
+  [elementsFromPoint on inner documents]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/cssom-view/elementsFromPoint-invalid-cases.html.ini b/tests/wpt/metadata/css/cssom-view/elementsFromPoint-invalid-cases.html.ini
new file mode 100644
index 00000000000..e181af5397f
--- /dev/null
+++ b/tests/wpt/metadata/css/cssom-view/elementsFromPoint-invalid-cases.html.ini
@@ -0,0 +1,4 @@
+[elementsFromPoint-invalid-cases.html]
+  [The root element is the last element returned for otherwise empty queries within the viewport]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/selectors/selectors-dir-selector-auto.html.ini b/tests/wpt/metadata/css/selectors/selectors-dir-selector-auto.html.ini
new file mode 100644
index 00000000000..f533b7df909
--- /dev/null
+++ b/tests/wpt/metadata/css/selectors/selectors-dir-selector-auto.html.ini
@@ -0,0 +1,2 @@
+[selectors-dir-selector-auto.html]
+  expected: ERROR
diff --git a/tests/wpt/metadata/css/selectors/selectors-dir-selector-change-001.html.ini b/tests/wpt/metadata/css/selectors/selectors-dir-selector-change-001.html.ini
new file mode 100644
index 00000000000..50e0e6623b2
--- /dev/null
+++ b/tests/wpt/metadata/css/selectors/selectors-dir-selector-change-001.html.ini
@@ -0,0 +1,2 @@
+[selectors-dir-selector-change-001.html]
+  expected: FAIL
diff --git a/tests/wpt/metadata/css/selectors/selectors-dir-selector-change-002.html.ini b/tests/wpt/metadata/css/selectors/selectors-dir-selector-change-002.html.ini
new file mode 100644
index 00000000000..25232bb1f27
--- /dev/null
+++ b/tests/wpt/metadata/css/selectors/selectors-dir-selector-change-002.html.ini
@@ -0,0 +1,2 @@
+[selectors-dir-selector-change-002.html]
+  expected: FAIL
diff --git a/tests/wpt/metadata/css/selectors/selectors-dir-selector-change-003.html.ini b/tests/wpt/metadata/css/selectors/selectors-dir-selector-change-003.html.ini
new file mode 100644
index 00000000000..e6a4e5e8af7
--- /dev/null
+++ b/tests/wpt/metadata/css/selectors/selectors-dir-selector-change-003.html.ini
@@ -0,0 +1,2 @@
+[selectors-dir-selector-change-003.html]
+  expected: FAIL
diff --git a/tests/wpt/metadata/css/selectors/selectors-dir-selector-change-004.html.ini b/tests/wpt/metadata/css/selectors/selectors-dir-selector-change-004.html.ini
new file mode 100644
index 00000000000..c72af09bf92
--- /dev/null
+++ b/tests/wpt/metadata/css/selectors/selectors-dir-selector-change-004.html.ini
@@ -0,0 +1,2 @@
+[selectors-dir-selector-change-004.html]
+  expected: FAIL
diff --git a/tests/wpt/metadata/css/selectors/selectors-dir-selector-querySelector.html.ini b/tests/wpt/metadata/css/selectors/selectors-dir-selector-querySelector.html.ini
new file mode 100644
index 00000000000..1b47c19cf14
--- /dev/null
+++ b/tests/wpt/metadata/css/selectors/selectors-dir-selector-querySelector.html.ini
@@ -0,0 +1,10 @@
+[selectors-dir-selector-querySelector.html]
+  [:dir() works in compound selectors]
+    expected: FAIL
+
+  [:dir() works in complex selectors]
+    expected: FAIL
+
+  [:dir() allows any ident value but strings other than ltr/rtl don't match]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/selectors/selectors-dir-selector-white-space-001.html.ini b/tests/wpt/metadata/css/selectors/selectors-dir-selector-white-space-001.html.ini
new file mode 100644
index 00000000000..566cd31c34f
--- /dev/null
+++ b/tests/wpt/metadata/css/selectors/selectors-dir-selector-white-space-001.html.ini
@@ -0,0 +1,2 @@
+[selectors-dir-selector-white-space-001.html]
+  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 83022fa66bc..3a7bd78fb30 100644
--- a/tests/wpt/metadata/fetch/content-type/response.window.js.ini
+++ b/tests/wpt/metadata/fetch/content-type/response.window.js.ini
@@ -309,21 +309,18 @@
   [fetch(): separate response Content-Type: text/plain ]
     expected: NOTRUN
 
-  [<iframe>: combined response Content-Type: text/html;" text/plain]
-    expected: FAIL
-
-  [<iframe>: separate response Content-Type: text/plain */*;charset=gbk]
-    expected: FAIL
-
   [<iframe>: combined response Content-Type: */* text/html]
     expected: FAIL
 
-  [<iframe>: separate response Content-Type: text/plain */*]
+  [<iframe>: separate response Content-Type: text/html */*;charset=gbk]
     expected: FAIL
 
-  [<iframe>: combined response Content-Type: text/html;" \\" text/plain]
+  [<iframe>: combined response Content-Type: text/html */*;charset=gbk]
     expected: FAIL
 
-  [<iframe>: combined response Content-Type: text/html;x=" text/plain]
+  [<iframe>: separate response Content-Type: text/html;x=" text/plain]
+    expected: FAIL
+
+  [<iframe>: separate response Content-Type: text/html;" \\" text/plain]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/fetch/content-type/script.window.js.ini b/tests/wpt/metadata/fetch/content-type/script.window.js.ini
index 5c001592859..d2df9b78483 100644
--- a/tests/wpt/metadata/fetch/content-type/script.window.js.ini
+++ b/tests/wpt/metadata/fetch/content-type/script.window.js.ini
@@ -56,6 +56,3 @@
   [separate text/javascript x/x]
     expected: FAIL
 
-  [separate text/javascript;charset=windows-1252 error text/javascript]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini b/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini
index 30e1b851fd4..aa6eb8f6085 100644
--- a/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini
+++ b/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini
@@ -11,3 +11,6 @@
   [X-Content-Type-Options%3A%20nosniff%2C%2C%40%23%24%23%25%25%26%5E%26%5E*()()11!]
     expected: FAIL
 
+  [X-Content-Type-Options%3A%20'NosniFF']
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_1.html.ini b/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_1.html.ini
deleted file mode 100644
index 87b07c3e670..00000000000
--- a/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_1.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[traverse_the_history_1.html]
-  [Multiple history traversals from the same task]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_5.html.ini b/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_5.html.ini
deleted file mode 100644
index dc2e45516de..00000000000
--- a/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_5.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[traverse_the_history_5.html]
-  [Multiple history traversals, last would be aborted]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/html/browsers/origin/cross-origin-objects/cross-origin-objects-on-new-window.html.ini b/tests/wpt/metadata/html/browsers/origin/cross-origin-objects/cross-origin-objects-on-new-window.html.ini
new file mode 100644
index 00000000000..735a9a75a2a
--- /dev/null
+++ b/tests/wpt/metadata/html/browsers/origin/cross-origin-objects/cross-origin-objects-on-new-window.html.ini
@@ -0,0 +1,2 @@
+[cross-origin-objects-on-new-window.html]
+  expected: TIMEOUT
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-1.html.ini b/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-1.html.ini
index fc37df7e3fa..2a166bb97b7 100644
--- a/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-1.html.ini
+++ b/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-1.html.ini
@@ -1,6 +1,6 @@
 [iframe_sandbox_popups_escaping-1.html]
   type: testharness
-  expected: TIMEOUT
+  expected: CRASH
   [Check that popups from a sandboxed iframe escape the sandbox if\n       allow-popups-to-escape-sandbox is used]
     expected: TIMEOUT
 
diff --git a/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-1.html.ini b/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-1.html.ini
index 963d4cd20ef..9df1ac56f2a 100644
--- a/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-1.html.ini
+++ b/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-1.html.ini
@@ -1,6 +1,6 @@
 [iframe_sandbox_popups_nonescaping-1.html]
   type: testharness
-  expected: CRASH
+  expected: TIMEOUT
   [Check that popups from a sandboxed iframe do not escape the sandbox]
     expected: NOTRUN
 
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 7a36937927c..f4f994c5d6f 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
@@ -1,4 +1,5 @@
 [iframe_sandbox_popups_nonescaping-3.html]
+  expected: TIMEOUT
   [Check that popups from a sandboxed iframe do not escape the sandbox]
-    expected: FAIL
+    expected: NOTRUN
 
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-3.html.ini b/tests/wpt/metadata/html/semantics/forms/form-submission-0/form-double-submit-3.html.ini
new file mode 100644
index 00000000000..9f416703229
--- /dev/null
+++ b/tests/wpt/metadata/html/semantics/forms/form-submission-0/form-double-submit-3.html.ini
@@ -0,0 +1,4 @@
+[form-double-submit-3.html]
+  [<button> should have the same double-submit protection as <input type=submit>]
+    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/form-submission-0/newline-normalization.html.ini b/tests/wpt/metadata/html/semantics/forms/form-submission-0/newline-normalization.html.ini
index ff5e9edab6a..e3f768f1c8e 100644
--- a/tests/wpt/metadata/html/semantics/forms/form-submission-0/newline-normalization.html.ini
+++ b/tests/wpt/metadata/html/semantics/forms/form-submission-0/newline-normalization.html.ini
@@ -11,3 +11,15 @@
   [Form newline normalization: \\r in the name becomes \\r\\n]
     expected: FAIL
 
+  [Form newline normalization: \\r\\n in the filename stays unchanged]
+    expected: FAIL
+
+  [Form newline normalization: \\n in the filename stays unchanged]
+    expected: FAIL
+
+  [Form newline normalization: \\r in the filename stays unchanged]
+    expected: FAIL
+
+  [Form newline normalization: \\n\\r in the filename stays unchanged]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/html/webappapis/dynamic-markup-insertion/document-write/iframe_005.html.ini b/tests/wpt/metadata/html/webappapis/dynamic-markup-insertion/document-write/iframe_005.html.ini
deleted file mode 100644
index 6cf9d13975c..00000000000
--- a/tests/wpt/metadata/html/webappapis/dynamic-markup-insertion/document-write/iframe_005.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[iframe_005.html]
-  [document.write external script into iframe write back into parent]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/html/webappapis/scripting/events/compile-event-handler-settings-objects.html.ini b/tests/wpt/metadata/html/webappapis/scripting/events/compile-event-handler-settings-objects.html.ini
index 01f7b72cbe7..0cef5158fae 100644
--- a/tests/wpt/metadata/html/webappapis/scripting/events/compile-event-handler-settings-objects.html.ini
+++ b/tests/wpt/metadata/html/webappapis/scripting/events/compile-event-handler-settings-objects.html.ini
@@ -4,6 +4,3 @@
   [The incumbent settings object while executing the compiled callback via Web IDL's invoke must be that of the node document]
     expected: TIMEOUT
 
-  [The entry settings object while executing the compiled callback via Web IDL's invoke must be that of the node document]
-    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 901bbf74c6b..3197832cf98 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
@@ -587,3 +587,9 @@
   [X SNR (-47.5135609418513 dB) is not greater than or equal to 65.737. Got -47.5135609418513.]
     expected: FAIL
 
+  [X SNR (-47.70129108083442 dB) is not greater than or equal to 65.737. Got -47.70129108083442.]
+    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\]\t3.6039609375000000e+4\t9.3139332532882690e-1\t3.6038677981674671e+4\t3.8693296378252737e+4\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 3.6038677981674671e+4 at index of 28696.\n\tMax RelError of 3.8693296378252737e+4 at index of 28696.\n]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/webmessaging/with-ports/017.html.ini b/tests/wpt/metadata/webmessaging/with-ports/017.html.ini
new file mode 100644
index 00000000000..064cf47545b
--- /dev/null
+++ b/tests/wpt/metadata/webmessaging/with-ports/017.html.ini
@@ -0,0 +1,5 @@
+[017.html]
+  expected: TIMEOUT
+  [origin of the script that invoked the method, about:blank]
+    expected: TIMEOUT
+
diff --git a/tests/wpt/metadata/webmessaging/without-ports/017.html.ini b/tests/wpt/metadata/webmessaging/without-ports/017.html.ini
new file mode 100644
index 00000000000..064cf47545b
--- /dev/null
+++ b/tests/wpt/metadata/webmessaging/without-ports/017.html.ini
@@ -0,0 +1,5 @@
+[017.html]
+  expected: TIMEOUT
+  [origin of the script that invoked the method, about:blank]
+    expected: TIMEOUT
+
diff --git a/tests/wpt/metadata/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/compression/compression-with-detach.tentative.any.js b/tests/wpt/web-platform-tests/compression/compression-with-detach.tentative.any.js
new file mode 100644
index 00000000000..786bba21c80
--- /dev/null
+++ b/tests/wpt/web-platform-tests/compression/compression-with-detach.tentative.any.js
@@ -0,0 +1,55 @@
+// META: global=window,worker
+// META: script=resources/concatenate-stream.js
+
+'use strict';
+
+const kInputLength = 500000;
+
+function createLargeRandomInput() {
+  const buffer = new ArrayBuffer(kInputLength);
+  // The getRandomValues API will only let us get 65536 bytes at a time, so call
+  // it multiple times.
+  const kChunkSize = 65536;
+  for (let offset = 0; offset < kInputLength; offset += kChunkSize) {
+    const length =
+        offset + kChunkSize > kInputLength ? kInputLength - offset : kChunkSize;
+    const view = new Uint8Array(buffer, offset, length);
+    crypto.getRandomValues(view);
+  }
+  return new Uint8Array(buffer);
+}
+
+function decompress(view) {
+  const ds = new DecompressionStream('deflate');
+  const writer = ds.writable.getWriter();
+  writer.write(view);
+  writer.close();
+  return concatenateStream(ds.readable);
+}
+
+promise_test(async () => {
+  const input = createLargeRandomInput();
+  const inputCopy = input.slice(0, input.byteLength);
+  const cs = new CompressionStream('deflate');
+  const writer = cs.writable.getWriter();
+  writer.write(input);
+  writer.close();
+  // Object.prototype.then will be looked up synchronously when the promise
+  // returned by read() is resolved.
+  Object.defineProperty(Object.prototype, 'then', {
+    get() {
+      // Cause input to become detached and unreferenced.
+      try {
+        postMessage(undefined, 'nowhere', [input.buffer]);
+      } catch (e) {
+        // It's already detached.
+      }
+    }
+  });
+  const output = await concatenateStream(cs.readable);
+  // Perform the comparison as strings since this is reasonably fast even when
+  // JITted JavaScript is running under an emulator.
+  assert_equals(
+      inputCopy.toString(), (await decompress(output)).toString(),
+      'decompressing the output should return the input');
+}, 'data should be correctly compressed even if input is detached partway');
diff --git a/tests/wpt/web-platform-tests/compression/decompression-with-detach.tentative.any.js b/tests/wpt/web-platform-tests/compression/decompression-with-detach.tentative.any.js
new file mode 100644
index 00000000000..a2f8bda0914
--- /dev/null
+++ b/tests/wpt/web-platform-tests/compression/decompression-with-detach.tentative.any.js
@@ -0,0 +1,41 @@
+// META: global=window,worker
+// META: script=resources/concatenate-stream.js
+
+'use strict';
+
+const kInputLength = 1000000;
+
+async function createLargeCompressedInput() {
+  const cs = new CompressionStream('deflate');
+  // The input has to be large enough that it won't fit in a single chunk when
+  // decompressed.
+  const writer = cs.writable.getWriter();
+  writer.write(new Uint8Array(kInputLength));
+  writer.close();
+  return concatenateStream(cs.readable);
+}
+
+promise_test(async () => {
+  const input = await createLargeCompressedInput();
+  const ds = new DecompressionStream('deflate');
+  const writer = ds.writable.getWriter();
+  writer.write(input);
+  writer.close();
+  // Object.prototype.then will be looked up synchronously when the promise
+  // returned by read() is resolved.
+  Object.defineProperty(Object.prototype, 'then', {
+    get() {
+      // Cause input to become detached and unreferenced.
+      try {
+        postMessage(undefined, 'nowhere', [input.buffer]);
+      } catch (e) {
+        // It's already detached.
+      }
+    }
+  });
+  const output = await concatenateStream(ds.readable);
+  // If output successfully decompressed and gave the right length, we can be
+  // reasonably confident that no data corruption happened.
+  assert_equals(
+      output.byteLength, kInputLength, 'output should be the right length');
+}, 'data should be correctly decompressed even if input is detached partway');
diff --git a/tests/wpt/web-platform-tests/compression/resources/concatenate-stream.js b/tests/wpt/web-platform-tests/compression/resources/concatenate-stream.js
new file mode 100644
index 00000000000..a35bb1416e7
--- /dev/null
+++ b/tests/wpt/web-platform-tests/compression/resources/concatenate-stream.js
@@ -0,0 +1,25 @@
+'use strict';
+
+// Read all the chunks from a stream that returns BufferSource objects and
+// concatenate them into a single Uint8Array.
+async function concatenateStream(readableStream) {
+  const reader = readableStream.getReader();
+  let totalSize = 0;
+  const buffers = [];
+  while (true) {
+    const { value, done } = await reader.read();
+    if (done) {
+      break;
+    }
+    buffers.push(value);
+    totalSize += value.byteLength;
+  }
+  reader.releaseLock();
+  const concatenated = new Uint8Array(totalSize);
+  let offset = 0;
+  for (const buffer of buffers) {
+    concatenated.set(buffer, offset);
+    offset += buffer.byteLength;
+  }
+  return concatenated;
+}
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/abs-pos-004-ref.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/abs-pos-004-ref.html
new file mode 100644
index 00000000000..ac47309df22
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/abs-pos-004-ref.html
@@ -0,0 +1,198 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <title>Reference: abs.pos. subgrid edge cases</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+<style>
+html,body {
+  color:black; background-color:white; font:15px/1 monospace;
+}
+
+body > div {
+  display: inline-block;
+  height: 20px;
+  border: 1px solid;
+  margin: 1px;
+  vertical-align: top;
+}
+body > div > div { height: 20px; background: lightgrey; }
+body > div > div > div { height: 20px; }
+</style>
+</head>
+<body>
+
+<script>
+let results = [
+  [ "10px", "0", "10px", "0", "10px", "lime" ],
+  [ "10px", "0", "10px", "0", "10px", "lime" ],
+  [ "10px", "0", "10px", "0", "10px", "lime" ],
+  [ "10px", "0", "10px", "0", "10px", "lime" ],
+  [ "10px", "0", "10px", "0", "10px", "lime" ],
+  [ "10px", "0", "10px", "0", "10px", "lime" ],
+  [ "10px", "0", "10px", "0", "10px", "lime" ],
+  [ "10px", "0", "10px", "0", "10px", "lime" ],
+  [ "10px", "0", "10px", "0", "10px", "lime" ],
+  [ "10px", "0", "10px", "0", "10px", "lime" ],
+  [ "10px", "0", "10px", "0", "10px", "lime" ],
+  [ "10px", "0", "10px", "0", "10px", "lime" ],
+  [ "50px", "0", "50px", "0", "10px", "lime" ],
+  [ "50px", "0", "50px", "0", "10px", "lime" ],
+  [ "50px", "0", "50px", "0", "50px", "lime" ],
+  [ "50px", "0", "50px", "0", "10px", "lime" ],
+  [ "50px", "0", "50px", "0", "10px", "lime" ],
+  [ "50px", "0", "50px", "0", "50px", "lime" ],
+  [ "50px", "0", "40px", "0", "40px", "lime" ],
+  [ "50px", "0", "40px", "0", "40px", "lime" ],
+  [ "50px", "0", "40px", "0", "40px", "lime" ],
+  [ "50px", "0", "40px", "0", "40px", "lime" ],
+  [ "50px", "0", "40px", "0", "40px", "lime" ],
+  [ "50px", "0", "40px", "0", "40px", "lime" ],
+
+  [ "10px", "0", "10px", "0", "10px", "blue" ],
+  [ "10px", "0", "10px", "0", "10px", "blue" ],
+  [ "10px", "0", "10px", "0", "10px", "blue" ],
+  [ "10px", "0", "10px", "0", "10px", "blue" ],
+  [ "10px", "0", "10px", "0", "10px", "blue" ],
+  [ "10px", "0", "10px", "0", "10px", "blue" ],
+  [ "10px", "0", "10px", "0", "10px", "blue" ],
+  [ "10px", "0", "10px", "0", "10px", "blue" ],
+  [ "10px", "0", "10px", "0", "10px", "blue" ],
+  [ "10px", "0", "10px", "0", "10px", "blue" ],
+  [ "10px", "0", "10px", "0", "10px", "blue" ],
+  [ "10px", "0", "10px", "0", "10px", "blue" ],
+  [ "50px", "0", "50px", "0", "10px", "blue" ],
+  [ "50px", "0", "50px", "0", "10px", "blue" ],
+  [ "50px", "0", "50px", "0", "50px", "blue" ],
+  [ "50px", "0", "50px", "0", "10px", "blue" ],
+  [ "50px", "0", "50px", "0", "10px", "blue" ],
+  [ "50px", "0", "50px", "0", "50px", "blue" ],
+  [ "50px", "0", "40px", "0", "40px", "blue" ],
+  [ "50px", "0", "40px", "0", "40px", "blue" ],
+  [ "50px", "0", "40px", "0", "40px", "blue" ],
+  [ "50px", "0", "40px", "0", "40px", "blue" ],
+  [ "50px", "0", "40px", "0", "40px", "blue" ],
+  [ "50px", "0", "40px", "0", "40px", "blue" ],
+
+  [ "20px", "0", "20px", "0", "20px", "lime" ],
+  [ "20px", "0", "20px", "0", "20px", "lime" ],
+  [ "20px", "0", "20px", "0", "20px", "lime" ],
+  [ "20px", "0", "20px", "0", "20px", "lime" ],
+  [ "20px", "0", "20px", "0", "20px", "lime" ],
+  [ "20px", "0", "20px", "0", "20px", "lime" ],
+  [ "20px", "0", "20px", "0", "20px", "lime" ],
+  [ "20px", "0", "20px", "0", "20px", "lime" ],
+  [ "20px", "0", "20px", "0", "20px", "lime" ],
+  [ "20px", "0", "20px", "0", "20px", "lime" ],
+  [ "20px", "0", "20px", "0", "20px", "lime" ],
+  [ "20px", "0", "20px", "0", "20px", "lime" ],
+  [ "50px", "0", "0", "20px", "30px", "lime" ],
+  [ "50px", "0", "0", "20px", "30px", "lime" ],
+  [ "50px", "0", "0", "20px", "30px", "lime" ],
+  [ "50px", "0", "0", "20px", "30px", "lime" ],
+  [ "50px", "0", "0", "20px", "30px", "lime" ],
+  [ "50px", "0", "0", "20px", "30px", "lime" ],
+  [ "50px", "0", "0", "0", "30px", "lime" ],
+  [ "50px", "0", "0", "0", "30px", "lime" ],
+  [ "50px", "0", "0", "0", "30px", "lime" ],
+  [ "50px", "0", "0", "0", "30px", "lime" ],
+  [ "50px", "0", "0", "0", "30px", "lime" ],
+  [ "50px", "0", "0", "0", "30px", "lime" ],
+
+  [ "20px", "0", "20px", "0", "20px", "blue" ],
+  [ "20px", "0", "20px", "0", "20px", "blue" ],
+  [ "20px", "0", "20px", "0", "20px", "blue" ],
+  [ "20px", "0", "20px", "0", "20px", "blue" ],
+  [ "20px", "0", "20px", "0", "20px", "blue" ],
+  [ "20px", "0", "20px", "0", "20px", "blue" ],
+  [ "20px", "0", "20px", "0", "20px", "blue" ],
+  [ "20px", "0", "20px", "0", "20px", "blue" ],
+  [ "20px", "0", "20px", "0", "20px", "blue" ],
+  [ "20px", "0", "20px", "0", "20px", "blue" ],
+  [ "20px", "0", "20px", "0", "20px", "blue" ],
+  [ "20px", "0", "20px", "0", "20px", "blue" ],
+  [ "50px", "0", "0", "20px", "30px", "blue" ],
+  [ "50px", "0", "0", "20px", "30px", "blue" ],
+  [ "50px", "0", "0", "20px", "30px", "blue" ],
+  [ "50px", "0", "0", "20px", "30px", "blue" ],
+  [ "50px", "0", "0", "20px", "30px", "blue" ],
+  [ "50px", "0", "0", "20px", "30px", "blue" ],
+  [ "50px", "0", "0", "0", "30px", "blue" ],
+  [ "50px", "0", "0", "0", "30px", "blue" ],
+  [ "50px", "0", "0", "0", "30px", "blue" ],
+  [ "50px", "0", "0", "0", "30px", "blue" ],
+  [ "50px", "0", "0", "0", "30px", "blue" ],
+  [ "50px", "0", "0", "0", "30px", "blue" ],
+
+  [ "30px", "0", "30px", "0", "30px", "lime" ],
+  [ "30px", "0", "30px", "0", "30px", "lime" ],
+  [ "30px", "0", "30px", "0", "30px", "lime" ],
+  [ "30px", "0", "30px", "0", "30px", "lime" ],
+  [ "30px", "0", "30px", "0", "30px", "lime" ],
+  [ "30px", "0", "30px", "0", "30px", "lime" ],
+  [ "30px", "0", "30px", "0", "30px", "lime" ],
+  [ "30px", "0", "30px", "0", "30px", "lime" ],
+  [ "30px", "0", "30px", "0", "30px", "lime" ],
+  [ "30px", "0", "30px", "0", "30px", "lime" ],
+  [ "30px", "0", "30px", "0", "30px", "lime" ],
+  [ "30px", "0", "30px", "0", "30px", "lime" ],
+  [ "50px", "20px", "30px", "0", "10px", "lime" ],
+  [ "50px", "20px", "30px", "0", "10px", "lime" ],
+  [ "50px", "0", "0", "20px", "30px", "lime" ],
+  [ "50px", "20px", "30px", "0", "10px", "lime" ],
+  [ "50px", "20px", "30px", "0", "10px", "lime" ],
+  [ "50px", "0", "0", "20px", "30px", "lime" ],
+  [ "50px", "0", "0", "0", "20px", "lime" ],
+  [ "50px", "0", "0", "0", "20px", "lime" ],
+  [ "50px", "0", "0", "0", "20px", "lime" ],
+  [ "50px", "0", "0", "0", "20px", "lime" ],
+  [ "50px", "0", "0", "0", "20px", "lime" ],
+  [ "50px", "0", "0", "0", "20px", "lime" ],
+
+  [ "30px", "0", "30px", "0", "30px", "blue" ],
+  [ "30px", "0", "30px", "0", "30px", "blue" ],
+  [ "30px", "0", "30px", "0", "30px", "blue" ],
+  [ "30px", "0", "30px", "0", "30px", "blue" ],
+  [ "30px", "0", "30px", "0", "30px", "blue" ],
+  [ "30px", "0", "30px", "0", "30px", "blue" ],
+  [ "30px", "0", "30px", "0", "30px", "blue" ],
+  [ "30px", "0", "30px", "0", "30px", "blue" ],
+  [ "30px", "0", "30px", "0", "30px", "blue" ],
+  [ "30px", "0", "30px", "0", "30px", "blue" ],
+  [ "30px", "0", "30px", "0", "30px", "blue" ],
+  [ "30px", "0", "30px", "0", "30px", "blue" ],
+  [ "50px", "20px", "30px", "0", "10px", "blue" ],
+  [ "50px", "20px", "30px", "0", "10px", "blue" ],
+  [ "50px", "0", "0", "20px", "30px", "blue" ],
+  [ "50px", "20px", "30px", "0", "10px", "blue" ],
+  [ "50px", "20px", "30px", "0", "10px", "blue" ],
+  [ "50px", "0", "0", "20px", "30px", "blue" ],
+  [ "50px", "0", "0", "0", "20px", "blue" ],
+  [ "50px", "0", "0", "0", "20px", "blue" ],
+  [ "50px", "0", "0", "0", "20px", "blue" ],
+  [ "50px", "0", "0", "0", "20px", "blue" ],
+  [ "50px", "0", "0", "0", "20px", "blue" ],
+  [ "50px", "0", "0", "0", "20px", "blue" ],
+];
+results.forEach(function(arr) {
+  let grid_width, subgrid_width, subgrid_pos, item_pos, item_width, item_bg;
+  [grid_width, subgrid_pos, subgrid_width, item_pos, item_width, item_bg] = arr;
+  let grid = document.createElement('div');
+  grid.style.width = grid_width;
+  let subgrid = document.createElement('div');
+  subgrid.style.width = subgrid_width;
+  subgrid.style.marginLeft = subgrid_pos;
+  let subgridItem = document.createElement('div');
+  subgridItem.style.width = item_width;
+  subgridItem.style.marginLeft = item_pos;
+  subgridItem.style.backgroundColor = item_bg;
+  subgrid.appendChild(subgridItem);
+  grid.appendChild(subgrid);
+  document.body.appendChild(grid);
+});
+</script>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/abs-pos-004.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/abs-pos-004.html
new file mode 100644
index 00000000000..b66143c36c1
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/abs-pos-004.html
@@ -0,0 +1,104 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <title>CSS Grid Test: abs.pos. subgrid edge cases</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid-2">
+  <link rel="match" href="abs-pos-004-ref.html">
+<style>
+html,body {
+  color:black; background-color:white; font:15px/1 monospace;
+}
+
+.grid {
+  position: relative;
+  display: inline-grid;
+  grid-auto-columns: 10px;
+  grid-auto-rows: 20px;
+  grid-auto-flow: column;
+  border: 1px solid;
+  margin: 1px;
+  vertical-align: top;
+}
+
+.subgrid {
+  position: absolute;
+  inset: 0;
+  display: grid;
+  background: lightgrey;
+}
+.t1 { grid: subgrid / subgrid; }
+.t2 { grid: none / subgrid; }
+.t3 { grid: subgrid / none; }
+
+x {
+  background: lime;
+  grid-area: 1/1/-1/-1;
+}
+fail {
+  background: red;
+}
+
+.a {
+  position: absolute;
+  grid-area: 1/1/-1/-1;
+  inset: 0;
+  background: blue;
+}
+
+.o { overflow: hidden; }
+
+.start .subgrid {
+  grid-column-start: 3;
+}
+.end .subgrid {
+  grid-column-end: 1;
+}
+.start, .end {
+  width: 50px;
+}
+.end {
+  justify-content: end;
+}
+.start > fail, .end > fail {
+  background: initial;
+}
+</style>
+</head>
+<body>
+
+<script>
+function make_grids(items, abspos) {
+  ["", "o", "start", "end"].forEach(function(grid1) {
+    ["", "o"].forEach(function(subgrid1) {
+      ["t1", "t2", "t3"].forEach(function(subgrid2) {
+        let grid = document.createElement('div');
+        for (let i = 0; i < items; ++i) {
+          grid.appendChild(document.createElement('fail'));
+        }
+        grid.className = "grid " + grid1;
+        document.body.appendChild(grid);
+        document.body.offsetHeight;
+        let subgrid = document.createElement('div');
+        subgrid.className = "subgrid " + subgrid1 + " " + subgrid2;
+        let subgridItem = document.createElement('x');
+        if (abspos) {
+          subgridItem.className = "a";
+        }
+        subgrid.appendChild(subgridItem);
+        grid.appendChild(subgrid);
+      })
+    })
+  });
+}
+for (let i = 1; i <= 3; ++i) {
+  make_grids(i, false);
+  make_grids(i, true);
+}
+</script>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-tables/tentative/column-widths.html b/tests/wpt/web-platform-tests/css/css-tables/tentative/column-widths.html
index 52cb5b6fb05..b151c2263bb 100644
--- a/tests/wpt/web-platform-tests/css/css-tables/tentative/column-widths.html
+++ b/tests/wpt/web-platform-tests/css/css-tables/tentative/column-widths.html
@@ -276,7 +276,23 @@ column.max = max(td.max, col.max)</p>
 <table style="width:1px" data-expected-width=234>
   <col style="width:50%">
   <td style="width:100px" data-expected-width=10><div style="width:10px">10</div></td>
-  <td><div style="width:200px">200</div>
+  <td><div style="width:200px">200</div></td>
+</table>
+
+<p class="testdesc">col fixed td fixed inside table-layout:fixed
+constrained columns take precedence in fixed layout.
+<table style="width:324px;table-layout:fixed" data-expected-width=324>
+  <col style="width:100px">
+  <td style="width:200px" data-expected-width=100>100</td>
+  <td data-expected-width=200><div style="width:400px" >200</div></td>
+</table>
+
+<p class="testdesc">col percent td fixed inside table-layout:fixed
+constrained columns take precedence in fixed layout.
+<table style="width:324px;table-layout:fixed" data-expected-width=324>
+  <col style="width:50%">
+  <td style="width:200px" data-expected-width=150>150</td>
+  <td><div style="width:400px">150</div></td>
 </table>
 </main>
 <script>
diff --git a/tests/wpt/web-platform-tests/css/selectors/selectors-dir-selector-auto.html b/tests/wpt/web-platform-tests/css/selectors/selectors-dir-selector-auto.html
new file mode 100644
index 00000000000..d53e989f69e
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/selectors/selectors-dir-selector-auto.html
@@ -0,0 +1,93 @@
+<!doctype html>
+<html>
+<head>
+  <link rel="help" href="http://www.w3.org/TR/selectors4/#dir-pseudo">
+  <script src="/resources/testharness.js"></script>
+  <script src="/resources/testharnessreport.js"></script>
+  <style>
+    #div4_1 {
+      direction: rtl;
+    }
+  </style>
+</head>
+
+<!-- &#1514; is the Hebrew letter tav, i.e. RTL -->
+<body>
+  <div id=testDivs>
+    <div id=div1 dir=auto>
+      <div id=div1_1>a</div>
+    </div>
+    <div id=div2 dir=auto>
+      <div id=div2_1>&#1514;</div>
+    </div>
+    <div id=div3 dir=auto>
+      <div id=div3_1 dir=rtl>&#1514;</div>
+      <div id=div3_2>a</div>
+    </div>
+    <div id=div4 dir=auto>
+      <div id=div4_1>
+        <div id=div4_1_1>a</div>
+      </div>
+    </div>
+  </div>
+</body>
+
+<script>
+function test_directionality(message, element, expected) {
+  test(() => {
+    var isLTR = document.querySelector("#" + element.id + ":dir(ltr)") == element;
+    var isRTL = document.querySelector("#" + element.id + ":dir(rtl)") == element;
+    if (expected == "ltr") {
+      assert_true(isLTR);
+      assert_false(isRTL);
+    } else {
+      assert_false(isLTR);
+      assert_true(isRTL);
+    }
+  }, message + " directionality of element " + element.id + " is " + expected);
+}
+
+test_directionality("Initial ", div1, "ltr");
+test_directionality("Initial ", div1_1, "ltr");
+test_directionality("Initial ", div2, "rtl");
+test_directionality("Initial ", div2_1, "rtl");
+test_directionality("Initial ", div3, "ltr");
+test_directionality("Initial ", div3_1, "rtl");
+test_directionality("Initial ", div3_2, "ltr");
+test_directionality("Initial ", div4, "ltr");
+test_directionality("Initial ", div4_1, "ltr");
+test_directionality("Initial ", div4_1_1, "ltr");
+
+div1_1.innerText = "\u05EA";
+div1_1.offsetTop;
+test_directionality("Updated ", div1, "rtl");
+test_directionality("Updated ", div1_1, "rtl");
+
+div1_1.dir = "ltr";
+div1_1.offsetTop;
+test_directionality("Updated ", div1, "ltr");
+test_directionality("Updated ", div1_1, "ltr");
+
+div1_1.innerText = "a";
+div1_1.offsetTop;
+test_directionality("Reupdated ", div1, "ltr");
+test_directionality("Reupdated ", div1_1, "ltr");
+
+div2_1.remove();
+div2.offsetTop;
+test_directionality("Updated ", div2, "ltr");
+
+div3_1.dir = "";
+div3_1.offsetTop;
+test_directionality("Updated ", div3, "rtl");
+div3.appendChild(div3_1);
+div3.offsetTop;
+test_directionality("Updated ", div3, "ltr");
+
+div4_1_1.innerText = "\u05EA";
+div4_1_1.offsetTop;
+test_directionality("Updated ", div4, "rtl");
+test_directionality("Updated ", div4_1, "rtl");
+test_directionality("Updated ", div4_1_1, "rtl");
+</script>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/selectors/selectors-dir-selector-change-001-ref.html b/tests/wpt/web-platform-tests/css/selectors/selectors-dir-selector-change-001-ref.html
new file mode 100644
index 00000000000..8c79c8328f0
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/selectors/selectors-dir-selector-change-001-ref.html
@@ -0,0 +1,16 @@
+<!DOCTYPE html>
+<html>
+<head>
+    <style type="text/css">
+        span { background-color: lime }
+    </style>
+</head>
+<body>
+    <div>
+        <div>
+          <div></div>
+          <span>The background color should be lime</span>
+        </div>
+    </div>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/selectors/selectors-dir-selector-change-001.html b/tests/wpt/web-platform-tests/css/selectors/selectors-dir-selector-change-001.html
new file mode 100644
index 00000000000..f9523896438
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/selectors/selectors-dir-selector-change-001.html
@@ -0,0 +1,25 @@
+<!DOCTYPE html>
+<html>
+<head>
+    <title>CSS Selectors Level 4 Test: Check for correctly updating :dir matching on dir attribute change from default(ltr) to rtl</title>
+    <link rel="author" title="Miyoung Shin" href="mailto:myid.shin@igalia.com">
+    <link rel="help" href="http://www.w3.org/TR/selectors4/#dir-pseudo">
+    <link rel="match" href="selectors-dir-selector-change-001-ref.html">
+    <style type="text/css">
+        #x:dir(rtl) + span { background-color: lime }
+        #outer { direction:ltr }
+    </style>
+</head>
+<body>
+    <div id="outer" style="-webkit-locale: 'en'">
+        <div>
+            <div id="x"></div>
+            <span>The background color should be lime</span>
+        </div>
+    </div>
+    <script>
+        outer.offsetTop;
+        outer.setAttribute("dir", "rtl");
+    </script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/selectors/selectors-dir-selector-change-002.html b/tests/wpt/web-platform-tests/css/selectors/selectors-dir-selector-change-002.html
new file mode 100644
index 00000000000..bc032b59541
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/selectors/selectors-dir-selector-change-002.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<html>
+<head>
+    <title>CSS Selectors Level 4 Test: Check for correctly updating :dir matching on dir attribute change from default(ltr) to rtl</title>
+    <link rel="author" title="Miyoung Shin" href="mailto:myid.shin@igalia.com">
+    <link rel="help" href="http://www.w3.org/TR/selectors4/#dir-pseudo">
+    <link rel="match" href="../reference/ref-filled-green-100px-square.xht">
+    <style type="text/css">
+       div {
+           width: 100px;
+           height: 100px;
+           background-color: red;
+       }
+
+       div:dir(rtl) {
+           background-color: green;
+       }
+    </style>
+</head>
+<body>
+    <p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+    <div id="inner"></div>
+    <script>
+        inner.offsetTop;
+        inner.setAttribute("dir", "rtl");
+    </script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/selectors/selectors-dir-selector-change-003-ref.html b/tests/wpt/web-platform-tests/css/selectors/selectors-dir-selector-change-003-ref.html
new file mode 100644
index 00000000000..8c79c8328f0
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/selectors/selectors-dir-selector-change-003-ref.html
@@ -0,0 +1,16 @@
+<!DOCTYPE html>
+<html>
+<head>
+    <style type="text/css">
+        span { background-color: lime }
+    </style>
+</head>
+<body>
+    <div>
+        <div>
+          <div></div>
+          <span>The background color should be lime</span>
+        </div>
+    </div>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/selectors/selectors-dir-selector-change-003.html b/tests/wpt/web-platform-tests/css/selectors/selectors-dir-selector-change-003.html
new file mode 100644
index 00000000000..f4000155a8d
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/selectors/selectors-dir-selector-change-003.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<html>
+<head>
+    <title>CSS Selectors Level 4 Test: Check for correctly updating :dir matching on dir attribute change from rtl to auto</title>
+    <link rel="author" title="Miyoung Shin" href="mailto:myid.shin@igalia.com">
+    <link rel="help" href="http://www.w3.org/TR/selectors4/#dir-pseudo">
+    <link rel="match" href="selectors-dir-selector-change-003-ref.html">
+    <style type="text/css">
+        #x:dir(ltr) + span { background-color: lime }
+    </style>
+</head>
+<body>
+    <div id="outer" dir="rtl">
+        <div>
+            <div id="x"></div>
+            <span>The background color should be lime</span>
+        </div>
+    </div>
+    <script>
+        outer.offsetTop;
+        outer.setAttribute("dir", "auto");
+    </script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/selectors/selectors-dir-selector-change-004-ref.html b/tests/wpt/web-platform-tests/css/selectors/selectors-dir-selector-change-004-ref.html
new file mode 100644
index 00000000000..9a130cb2e5c
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/selectors/selectors-dir-selector-change-004-ref.html
@@ -0,0 +1,17 @@
+<!DOCTYPE html>
+<html>
+<head>
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+    <style type="text/css">
+        span { background-color: lime }
+    </style>
+</head>
+<body>
+    <div>
+        <div dir="rtl">
+          <div></div>
+          <span>מקור השם עברית</span>
+        </div>
+    </div>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/selectors/selectors-dir-selector-change-004.html b/tests/wpt/web-platform-tests/css/selectors/selectors-dir-selector-change-004.html
new file mode 100644
index 00000000000..4c76b291bad
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/selectors/selectors-dir-selector-change-004.html
@@ -0,0 +1,25 @@
+<!DOCTYPE html>
+<html>
+<head>
+    <title>CSS Selectors Level 4 Test: Check for correctly updating :dir matching on directionality change from ltr to rtl</title>
+    <link rel="author" title="Miyoung Shin" href="mailto:myid.shin@igalia.com">
+    <link rel="help" href="http://www.w3.org/TR/selectors4/#dir-pseudo">
+    <link rel="match" href="selectors-dir-selector-change-004-ref.html">
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+    <style type="text/css">
+        #x:dir(rtl) + span { background-color: lime }
+    </style>
+</head>
+<body>
+    <div dir="auto">
+        <div>
+            <div id="x"></div>
+            <span id="inner">The background color should be lime</span>
+        </div>
+    </div>
+    <script>
+        inner.offsetTop;
+        inner.innerHTML = "מקור השם עברית";
+    </script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/selectors/selectors-dir-selector-ltr-002.html b/tests/wpt/web-platform-tests/css/selectors/selectors-dir-selector-ltr-002.html
new file mode 100644
index 00000000000..bbb3f26a780
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/selectors/selectors-dir-selector-ltr-002.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<html>
+<head>
+    <title>CSS Selectors Level 4 Test: exception handling for an invalid identifier of dir()</title>
+    <link rel="author" title="Miyoung Shin" href="mailto:myid.shin@igalia.com">
+    <link rel="help" href="http://www.w3.org/TR/selectors4/#dir-pseudo">
+    <link rel="match" href="../reference/ref-filled-green-100px-square.xht">
+    <meta name="flags" content="">
+    <meta name="assert" content="The invalid identifier of :dir(ltrr) pseudo-class doesn't match an element that has a directionality of (ltr). Even if the div element has dir=ltr, the selector should not match.">
+    <style type="text/css">
+       div {
+           width: 100px;
+           height: 100px;
+           background-color: green;
+       }
+
+       div:dir(ltrr) {
+           background-color: red;
+       }
+    </style>
+</head>
+<body>
+    <p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+    <div dir="ltr"></div>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/selectors/selectors-dir-selector-ltr-003.html b/tests/wpt/web-platform-tests/css/selectors/selectors-dir-selector-ltr-003.html
new file mode 100644
index 00000000000..821a33616fc
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/selectors/selectors-dir-selector-ltr-003.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<html>
+<head>
+    <title>CSS Selectors Level 4 Test: exception handling for multiple identifiers of dir() </title>
+    <link rel="author" title="Miyoung Shin" href="mailto:myid.shin@igalia.com">
+    <link rel="help" href="http://www.w3.org/TR/selectors4/#dir-pseudo">
+    <link rel="match" href="../reference/ref-filled-green-100px-square.xht">
+    <meta name="flags" content="">
+    <meta name="assert" content="The multiple identifiers of :dir(ltr, rtl) pseudo-class don't match an element that has a directionality of (ltr). Even if the div element has dir=ltr, the selector should not match.">
+    <style type="text/css">
+       div {
+           width: 100px;
+           height: 100px;
+           background-color: green;
+       }
+
+       div:dir(ltr, rtl) {
+           background-color: red;
+       }
+    </style>
+</head>
+<body>
+    <p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+    <div dir="ltr"></div>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/selectors/selectors-dir-selector-querySelector.html b/tests/wpt/web-platform-tests/css/selectors/selectors-dir-selector-querySelector.html
new file mode 100644
index 00000000000..a05e3fea78f
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/selectors/selectors-dir-selector-querySelector.html
@@ -0,0 +1,71 @@
+<!doctype html>
+<html>
+<head>
+  <link rel="help" href="http://www.w3.org/TR/selectors4/#dir-pseudo">
+  <script src="/resources/testharness.js"></script>
+  <script src="/resources/testharnessreport.js"></script>
+</head>
+
+<body>
+  <div id=outer>
+    <div id=div1></div>
+    <div id=div2 dir=ltr>
+      <div id=div2_1></div>
+      <div id=div2_2 dir=ltr></div>
+      <div id=div2_3 dir=rtl></div>
+    </div>
+    <div id=div3 dir=rtl>
+      <div id=div3_1>
+        <div id=div3_1_1></div>
+      </div>
+      <div id=div3_2 dir=ltr></div>
+      <div id=div3_3 dir=rtl></div>
+    </div>
+    <div id=div4 dir=lol></div>
+    <div id=div5 dir=auto></div>
+  </div>
+</body>
+
+<script>
+test(() => {
+  assert_equals(document.querySelector(":dir(lol)"), null);
+  assert_equals(document.querySelector(":dir(lol )"), null);
+  assert_equals(document.querySelector(":dir( auto)"), null);
+  assert_equals(document.querySelector(":dir(\nauto\t)"), null);
+}, ":dir() allows any ident value but strings other than ltr/rtl don't match");
+
+test(() => {
+  assert_throws_dom("SYNTAX_ERR", () => { document.querySelector(":dir()"); });
+  assert_throws_dom("SYNTAX_ERR", () => { document.querySelector(":dir(ltr, rtl)"); });
+  assert_throws_dom("SYNTAX_ERR", () => { document.querySelector(":dir('ltr')"); });
+}, ":dir() requires exactly an ident argument");
+
+test(() => {
+  assert_equals(document.querySelector(":dir(rtl)"), div2_3);
+  assert_equals(document.querySelector("*:dir(rtl)"), div2_3);
+  assert_equals(document.querySelector("div:dir(ltr)"), outer);
+  assert_equals(document.querySelector("div:dir(ltr):dir(ltr)"), outer);
+  assert_equals(document.querySelector(":dir(rtl)#div3_3"), div3_3);
+  assert_equals(document.querySelector(":nth-child(2):dir(rtl)"), null);
+  assert_equals(document.querySelector(":nth-child(3):dir(rtl)"), div2_3);
+  assert_equals(document.querySelector(":nth-child(4):dir(ltr)"), div4);
+  assert_equals(document.querySelector(":nth-last-child(3):dir(rtl)"), div3);
+}, ":dir() works in compound selectors");
+
+test(() => {
+  assert_equals(document.querySelector("#div2 :dir(ltr)"), div2_1);
+  assert_equals(document.querySelector(":dir(rtl) div"), div3_1);
+  assert_equals(document.querySelector("div + :dir(ltr)"), div2);
+  assert_equals(document.querySelector(":dir(ltr) + :dir(rtl)"), div2_3);
+  assert_equals(document.querySelector(":dir(rtl) :dir(rtl)"), div3_1);
+  assert_equals(document.querySelector(":dir(rtl) + :dir(ltr)"), div3_2);
+  assert_equals(document.querySelector(":dir(rtl) ~ :dir(rtl)"), div3_3);
+  assert_equals(document.querySelector(":dir(rtl) :dir(ltr)"), div3_2);
+  assert_equals(document.querySelector("* :dir(rtl) *"), div3_1);
+  assert_equals(document.querySelector("div :dir(rtl) div"), div3_1);
+  assert_equals(document.querySelector(":dir(ltr) :dir(rtl) + :dir(ltr)"), div3_2);
+  assert_equals(document.querySelector(":dir(ltr) + :dir(rtl) + * + *"), div5);
+  assert_equals(document.querySelector(":dir(rtl) > * > :dir(rtl)"), div3_1_1);
+}, ":dir() works in complex selectors");
+</script>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/selectors/selectors-dir-selector-white-space-001-ref.html b/tests/wpt/web-platform-tests/css/selectors/selectors-dir-selector-white-space-001-ref.html
new file mode 100644
index 00000000000..955a2dd603d
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/selectors/selectors-dir-selector-white-space-001-ref.html
@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<html>
+<head>
+    <style type="text/css">
+       div {
+           width: 100px;
+           height: 100px;
+           background-color: green;
+       }
+    </style>
+</head>
+<body>
+    <p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+    <div></div>
+    <div></div>
+    <div></div>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/selectors/selectors-dir-selector-white-space-001.html b/tests/wpt/web-platform-tests/css/selectors/selectors-dir-selector-white-space-001.html
new file mode 100644
index 00000000000..d3128a03734
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/selectors/selectors-dir-selector-white-space-001.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<html>
+<head>
+    <title>CSS Selectors Level 4 Test: Verify for an identifier with leading and tailing whitespace of dir() </title>
+    <link rel="author" title="Miyoung Shin" href="mailto:myid.shin@igalia.com">
+    <link rel="help" href="http://www.w3.org/TR/selectors4/#dir-pseudo">
+    <link rel="match" href="selectors-dir-selector-white-space-001-ref.html">
+    <meta name="assert" content="The :dir(ltr) pseudo-class matches an element that has a directionality of (ltr). Since the div element has dir=ltr, the selector matches.">
+    <style type="text/css">
+       div {
+           width: 100px;
+           height: 100px;
+           background-color: red;
+       }
+
+       #a:dir( ltr) { background-color: green; }
+       #b:dir(ltr ) { background-color: green; }
+       #c:dir( ltr ) { background-color: green; }
+    </style>
+</head>
+<body>
+    <p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+    <div id="a" dir="ltr"></div>
+    <div id="b" dir="ltr"></div>
+    <div id="c" dir="ltr"></div>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/html/semantics/forms/form-submission-0/newline-normalization.html b/tests/wpt/web-platform-tests/html/semantics/forms/form-submission-0/newline-normalization.html
index d3de7699662..b49468e1999 100644
--- a/tests/wpt/web-platform-tests/html/semantics/forms/form-submission-0/newline-normalization.html
+++ b/tests/wpt/web-platform-tests/html/semantics/forms/form-submission-0/newline-normalization.html
@@ -22,6 +22,22 @@
         return form;
       }
 
+      function createFormWithFile(testCase, name, filename) {
+        const form = document.createElement("form");
+        const input = document.createElement("input");
+        input.type = "file";
+        input.name = name;
+        const dataTransfer = new DataTransfer();
+        dataTransfer.items.add(new File([], filename, { type: "text/plain" }));
+        input.files = dataTransfer.files;
+        form.appendChild(input);
+        document.body.appendChild(form);
+        testCase.add_cleanup(() => {
+          document.body.removeChild(form);
+        });
+        return form;
+      }
+
       test((testCase) => {
         const formData = new FormData(createForm(testCase, "a", "b\nc"));
         assert_equals(formData.get("a"), "b\r\nc");
@@ -61,6 +77,34 @@
         const formData = new FormData(createForm(testCase, "a\n\rb", "c"));
         assert_equals([...formData][0][0], "a\r\n\r\nb");
       }, document.title + ": \\n\\r in the name becomes \\r\\n\\r\\n");
+
+      test((testCase) => {
+        const formData = new FormData(
+          createFormWithFile(testCase, "a", "b\nc")
+        );
+        assert_equals(formData.get("a").name, "b\nc");
+      }, document.title + ": \\n in the filename stays unchanged");
+
+      test((testCase) => {
+        const formData = new FormData(
+          createFormWithFile(testCase, "a", "b\rc")
+        );
+        assert_equals(formData.get("a").name, "b\rc");
+      }, document.title + ": \\r in the filename stays unchanged");
+
+      test((testCase) => {
+        const formData = new FormData(
+          createFormWithFile(testCase, "a", "b\r\nc")
+        );
+        assert_equals(formData.get("a").name, "b\r\nc");
+      }, document.title + ": \\r\\n in the filename stays unchanged");
+
+      test((testCase) => {
+        const formData = new FormData(
+          createFormWithFile(testCase, "a", "b\n\rc")
+        );
+        assert_equals(formData.get("a").name, "b\n\rc");
+      }, document.title + ": \\n\\r in the filename stays unchanged");
     </script>
   </body>
 </html>
diff --git a/tests/wpt/web-platform-tests/mediacapture-image/MediaStreamTrack-clone.https.html b/tests/wpt/web-platform-tests/mediacapture-image/MediaStreamTrack-clone.https.html
new file mode 100644
index 00000000000..c2b3e2bf8ab
--- /dev/null
+++ b/tests/wpt/web-platform-tests/mediacapture-image/MediaStreamTrack-clone.https.html
@@ -0,0 +1,362 @@
+<!DOCTYPE html>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/resources/testdriver.js"></script>
+<script src="/resources/testdriver-vendor.js"></script>
+<script src="/mediacapture-image/resources/imagecapture-helpers.js"></script>
+<script>
+
+// This test verifies that we can set some nondefault constraints, then clone a
+// MediaStreamTrack and check that the cloned constraints are the same as the
+// original, with a mock Mojo service implementation.
+image_capture_test(async (t, imageCaptureTest) => {
+  await test_driver.set_permission({name: 'camera', panTiltZoom: true},
+        'granted', false);
+
+  const constraints = { advanced : [{ whiteBalanceMode : 'single-shot',
+                                      exposureMode     : 'manual',
+                                      focusMode        : 'single-shot',
+
+                                      pointsOfInterest : [{x : 0.1, y : 0.2},
+                                                          {x : 0.3, y : 0.4}],
+
+                                      exposureCompensation : 133.77,
+                                      exposureTime         : 10000,
+                                      colorTemperature     : 6000,
+                                      iso                  : 120.0,
+
+                                      brightness           : 3,
+                                      contrast             : 4,
+                                      saturation           : 5,
+                                      sharpness            : 6,
+                                      focusDistance        : 7,
+
+                                      pan                  : 8,
+                                      tilt                 : 9,
+                                      zoom                 : 3.141592,
+
+                                      torch                : true
+                                    }]};
+
+    let stream = await navigator.mediaDevices.getUserMedia({video: true});
+    let originalVideoTrack = stream.getVideoTracks()[0];
+
+    await originalVideoTrack.applyConstraints(constraints);
+
+    let appliedConstraints = originalVideoTrack.getConstraints();
+
+    let clonedVideoTrack = originalVideoTrack.clone();
+    let appliedClonedConstraints = clonedVideoTrack.getConstraints();
+    assert_true('advanced' in appliedClonedConstraints);
+    assert_equals(appliedClonedConstraints.advanced.length, 1);
+    const appliedClonedAdvancedConstraints = appliedClonedConstraints.advanced[0];
+
+    // Check that |appliedClonedAdvancedConstraints| and |appliedAdvancedConstraints| are equal.
+    const appliedAdvancedConstraints = appliedConstraints.advanced[0];
+    assert_equals(appliedAdvancedConstraints.length, appliedClonedAdvancedConstraints.length);
+    Object.keys(appliedClonedAdvancedConstraints).forEach((key, value) => {
+      assert_not_equals(appliedAdvancedConstraints[key], undefined, 'key ' + key);
+      if (key != 'pointsOfInterest') {
+        assert_equals(appliedAdvancedConstraints[key], appliedClonedAdvancedConstraints[key], key);
+      } else {
+        assert_point2d_array_approx_equals(appliedAdvancedConstraints[key],
+                                           appliedClonedAdvancedConstraints[key], 0.01);
+      }
+    });
+
+    assert_equals(appliedAdvancedConstraints.whiteBalanceMode,
+                  appliedClonedAdvancedConstraints.whiteBalanceMode,
+                  'whiteBalanceMode');
+    assert_equals(appliedAdvancedConstraints.exposureMode,
+                  appliedClonedAdvancedConstraints.exposureMode,
+                  'exposureMode');
+    assert_equals(appliedAdvancedConstraints.focusMode,
+                  appliedClonedAdvancedConstraints.focusMode,
+                  'focusMode');
+
+    assert_point2d_array_approx_equals(
+        appliedAdvancedConstraints.pointsOfInterest,
+        appliedClonedAdvancedConstraints.pointsOfInterest,
+        0.01);
+
+    assert_equals(appliedAdvancedConstraints.exposureCompensation,
+                  appliedClonedAdvancedConstraints.exposureCompensation,
+                  'exposureCompensation');
+    assert_equals(appliedAdvancedConstraints.exposureTime,
+                  appliedClonedAdvancedConstraints.exposureTime,
+                  'exposureTime');
+    assert_equals(appliedAdvancedConstraints.colorTemperature,
+                  appliedClonedAdvancedConstraints.colorTemperature,
+                  'colorTemperature');
+    assert_equals(appliedAdvancedConstraints.iso,
+                  appliedClonedAdvancedConstraints.iso,
+                  'iso');
+    assert_equals(appliedAdvancedConstraints.brightness,
+                  appliedClonedAdvancedConstraints.brightness,
+                  'brightness');
+    assert_equals(appliedAdvancedConstraints.contrast,
+                  appliedClonedAdvancedConstraints.contrast,
+                  'constrast');
+    assert_equals(appliedAdvancedConstraints.saturation,
+                  appliedClonedAdvancedConstraints.saturation,
+                  'saturation');
+    assert_equals(appliedAdvancedConstraints.sharpness,
+                  appliedClonedAdvancedConstraints.sharpness,
+                  'sharpness');
+    assert_equals(appliedAdvancedConstraints.focusDistance,
+                  appliedClonedAdvancedConstraints.focusDistance,
+                  'focusDistance');
+
+    assert_equals(appliedAdvancedConstraints.pan,
+                  appliedClonedAdvancedConstraints.pan,
+                  'pan');
+    assert_equals(appliedAdvancedConstraints.tilt,
+                  appliedClonedAdvancedConstraints.tilt,
+                  'tilt');
+    assert_equals(appliedAdvancedConstraints.zoom,
+                  appliedClonedAdvancedConstraints.zoom,
+                  'zoom');
+
+    assert_equals(appliedAdvancedConstraints.torch,
+                  appliedClonedAdvancedConstraints.torch,
+                  'torch');
+}, 'checks MediaStreamTrack.clone() gets same applied constraints');
+
+// This test verifies that MediaStreamTrack ImageCapture settings are copied
+// when cloning a MediaStreamTrack.
+image_capture_test(async (t, imageCaptureTest) => {
+  await test_driver.set_permission({name: 'camera', panTiltZoom: true},
+        'granted', false);
+
+  let stream = await navigator.mediaDevices.getUserMedia({video: true});
+  let originalVideoTrack = stream.getVideoTracks()[0];
+  let clonedVideoTrack = originalVideoTrack.clone();
+
+  let settings = originalVideoTrack.getSettings();
+  let clonedSettings = clonedVideoTrack.getSettings();
+
+  assert_equals(settings.whiteBalanceMode,
+                clonedSettings.whiteBalanceMode,
+                'whiteBalanceMode');
+  assert_equals(settings.exposureMode,
+                clonedSettings.exposureMode,
+                'exposureMode;');
+  assert_equals(settings.focusMode,
+                clonedSettings.focusMode,
+                'focusMode');
+
+  assert_point2d_array_approx_equals(
+      settings.pointsOfInterest,
+      clonedSettings.pointsOfInterest,
+      0.01);
+
+  assert_equals(settings.exposureCompensation,
+                clonedSettings.exposureCompensation,
+                'exposureCompensation');
+  assert_equals(settings.exposureTime,
+                clonedSettings.exposureTime,
+                'exposureTime');
+  assert_equals(settings.colorTemperature,
+                clonedSettings.colorTemperature,
+                'colorTemperature');
+  assert_equals(settings.iso,
+                clonedSettings.iso,
+                'iso');
+
+  assert_equals(settings.brightness,
+                clonedSettings.brightness,
+                'brightness');
+  assert_equals(settings.contrast,
+                clonedSettings.contrast,
+                'contrast');
+  assert_equals(settings.saturation,
+                clonedSettings.saturation,
+                'saturation');
+  assert_equals(settings.sharpness,
+                clonedSettings.sharpness,
+                'sharpness');
+
+  assert_equals(settings.focusDistance,
+                clonedSettings.focusDistance,
+                'focusDistance');
+
+  assert_equals(settings.pan,
+                clonedSettings.pan,
+                'pan');
+  assert_equals(settings.tilt,
+                clonedSettings.tilt,
+                'tilt');
+  assert_equals(settings.zoom,
+                clonedSettings.zoom,
+                'zoom');
+
+  assert_equals(settings.torch,
+                clonedSettings.torch,
+                'torch');
+}, 'checks MediaStreamTrack.clone() gets same settings');
+
+// This test verifies that MediaStreamTrack ImageCapture capabilities are copied
+// when cloning a MediaStreamTrack.
+image_capture_test(async (t, imageCaptureTest) => {
+  await test_driver.set_permission({name: 'camera', panTiltZoom: true},
+      'granted', false);
+
+  let stream = await navigator.mediaDevices.getUserMedia({video: true});
+  let originalVideoTrack = stream.getVideoTracks()[0];
+  let clonedVideoTrack = originalVideoTrack.clone();
+
+  let capabilities = originalVideoTrack.getCapabilities();
+  let clonedCapabilities = clonedVideoTrack.getCapabilities();
+
+  assert_equals(capabilities.whiteBalanceMode.length,
+                clonedCapabilities.whiteBalanceMode.length,
+                'whiteBalanceMode length');
+  for (i = 0; i < capabilities.whiteBalanceMode.length; ++i) {
+    assert_equals(capabilities.whiteBalanceMode[i],
+                  clonedCapabilities.whiteBalanceMode[i],
+                  'whiteBalanceMode');
+  }
+
+  assert_equals(capabilities.exposureMode.length,
+                clonedCapabilities.exposureMode.length,
+                'exposureMode length');
+  for (i = 0; i < capabilities.exposureMode.length; ++i) {
+    assert_equals(capabilities.exposureMode[i],
+                  clonedCapabilities.exposureMode[i],
+                  'exposureMode');
+  }
+
+  assert_equals(capabilities.focusMode.length,
+                clonedCapabilities.focusMode.length,
+                'focusMode length');
+  for (i = 0; i < capabilities.focusMode.length; ++i) {
+    assert_equals(capabilities.focusMode[i],
+                  clonedCapabilities.focusMode[i],
+                  'focusMode');
+  }
+
+  assert_equals(capabilities.exposureCompensation.max,
+                clonedCapabilities.exposureCompensation.max,
+                'exposureCompensation max');
+  assert_equals(capabilities.exposureCompensation.min,
+                clonedCapabilities.exposureCompensation.min,
+                'exposureCompensation min');
+  assert_equals(capabilities.exposureCompensation.step,
+                clonedCapabilities.exposureCompensation.step,
+                'exposureCompensation step');
+
+  assert_equals(capabilities.exposureTime.max,
+                clonedCapabilities.exposureTime.max,
+                'exposureTime max');
+  assert_equals(capabilities.exposureTime.min,
+                clonedCapabilities.exposureTime.min,
+                'exposureTime min');
+  assert_equals(capabilities.exposureTime.step,
+                clonedCapabilities.exposureTime.step,
+                'exposureTime step');
+
+  assert_equals(capabilities.colorTemperature.max,
+                clonedCapabilities.colorTemperature.max,
+                'colorTemperature max');
+  assert_equals(capabilities.colorTemperature.min,
+                clonedCapabilities.colorTemperature.min,
+                'colorTemperature min');
+  assert_equals(capabilities.colorTemperature.step,
+                clonedCapabilities.colorTemperature.step,
+                'colorTemperature step');
+
+  assert_equals(capabilities.iso.max,
+                clonedCapabilities.iso.max,
+                'iso max');
+  assert_equals(capabilities.iso.min,
+                clonedCapabilities.iso.min,
+                'iso min');
+  assert_equals(capabilities.iso.step,
+                clonedCapabilities.iso.step,
+                'iso step');
+
+  assert_equals(capabilities.brightness.max,
+                clonedCapabilities.brightness.max,
+                'brightness max');
+  assert_equals(capabilities.brightness.min,
+                clonedCapabilities.brightness.min,
+                'brightness min');
+  assert_equals(capabilities.brightness.step,
+                clonedCapabilities.brightness.step,
+                'brightness step');
+
+  assert_equals(capabilities.contrast.max,
+                clonedCapabilities.contrast.max,
+                'contrast max');
+  assert_equals(capabilities.contrast.min,
+                clonedCapabilities.contrast.min,
+                'contrast min');
+  assert_equals(capabilities.contrast.step,
+                clonedCapabilities.contrast.step,
+                'contrast step');
+
+  assert_equals(capabilities.saturation.max,
+                clonedCapabilities.saturation.max,
+                'saturation max');
+  assert_equals(capabilities.saturation.min,
+                clonedCapabilities.saturation.min,
+                'saturation min');
+  assert_equals(capabilities.saturation.step,
+                clonedCapabilities.saturation.step,
+                'saturation step');
+
+  assert_equals(capabilities.sharpness.max,
+                clonedCapabilities.sharpness.max,
+                'sharpness max');
+  assert_equals(capabilities.sharpness.min,
+                clonedCapabilities.sharpness.min,
+                'sharpness min');
+  assert_equals(capabilities.sharpness.step,
+                clonedCapabilities.sharpness.step,
+                'sharpness step');
+
+  assert_equals(capabilities.focusDistance.max,
+                clonedCapabilities.focusDistance.max,
+                'focusDistance max');
+  assert_equals(capabilities.focusDistance.min,
+                clonedCapabilities.focusDistance.min,
+                'focusDistance min');
+  assert_equals(capabilities.focusDistance.step,
+                clonedCapabilities.focusDistance.step,
+                'focusDistance step');
+
+  assert_equals(capabilities.pan.max,
+                clonedCapabilities.pan.max,
+                'pan max');
+  assert_equals(capabilities.pan.min,
+                clonedCapabilities.pan.min,
+                'pan min');
+  assert_equals(capabilities.pan.step,
+                clonedCapabilities.pan.step,
+                'pan step');
+
+  assert_equals(capabilities.tilt.max,
+                clonedCapabilities.tilt.max,
+                'tilt max');
+  assert_equals(capabilities.tilt.min,
+                clonedCapabilities.tilt.min,
+                'tilt min');
+  assert_equals(capabilities.tilt.step,
+                clonedCapabilities.tilt.step,
+                'tilt step');
+
+  assert_equals(capabilities.zoom.max,
+                clonedCapabilities.zoom.max,
+                'zoom max');
+  assert_equals(capabilities.zoom.min,
+                clonedCapabilities.zoom.min,
+                'zoom min');
+  assert_equals(capabilities.zoom.step,
+                clonedCapabilities.zoom.step,
+                'zoom step');
+
+  assert_equals(capabilities.torch,
+                clonedCapabilities.torch,
+                'torch');
+}, 'checks MediaStreamTrack.clone() gets same capabilities');
+</script>
diff --git a/tests/wpt/web-platform-tests/native-file-system/showPicker-errors.https.window.js b/tests/wpt/web-platform-tests/native-file-system/showPicker-errors.https.window.js
index e8f0d3f5404..d1dabf37da8 100644
--- a/tests/wpt/web-platform-tests/native-file-system/showPicker-errors.https.window.js
+++ b/tests/wpt/web-platform-tests/native-file-system/showPicker-errors.https.window.js
@@ -80,9 +80,39 @@ function define_file_picker_error_tests(showPickerMethod) {
       showPickerMethod +
           ': MIME type can\'t have invalid characters in subtype.');
 
-  promise_test(async t => {
-    await promise_rejects_js(t, TypeError, self[showPickerMethod]({
-                               types: [{accept: {'text/plain': ['.txt', 'txt']}}]
-                             }));
-  }, showPickerMethod + ': extension has to start with ".".');
+  const invalid_extensions = {
+    '.extensiontoolong': 'extension length more than 16.',
+    '.txt.': 'extenstion ends with "."',
+    'txt': 'extenstion does not start with "."',
+    '.$txt' : 'illegal character "$"',
+    '.t<xt': 'illegal character "<"',
+    '.t/xt': 'illegal character "\"',
+    '.\txt': 'illegal character "/"',
+    '.txt\\': 'illegal characters "\\"',
+    '.txt?': 'illegal character "?"',
+    '.txt*': 'illegal character "*"',
+    '.{txt': 'illegal character "{"',
+    '.}txt': 'illegal character "}"',
+    ' .txt': 'illegal whitespace at front of extension',
+    '. txt': 'illegal whitespace in extension',
+    '.txt ': 'illegal whitespace at end of extension',
+    '.\u202etxt\u202e' : 'illegal RTL character',
+    '.t\u00E6xt': 'non-ASCII character "æ"',
+    '.קום': 'non-ASCII character "קום"',
+    '.txt🙂': 'non-ASCII character "🙂"',
+    '.{txt}': 'illegal characters "{" and "}"',
+  }
+
+  for (const [extension, description] of Object.entries(invalid_extensions)) {
+    define_file_picker_extension_error_test(showPickerMethod, extension, description)
+  }
 }
+
+function define_file_picker_extension_error_test(showPickerMethod, extension, description) {
+  promise_test(async t => {
+    await promise_rejects_js(
+      t, TypeError,
+      self[showPickerMethod](
+        { types: [{ accept: { 'text/plain': ['.txt', extension] } }] }));
+  }, showPickerMethod + ': invalid extension "' + extension + '". ' + description + ".");
+}
\ No newline at end of file
diff --git a/tests/wpt/web-platform-tests/streams/readable-byte-streams/bad-buffers-and-views.any.js b/tests/wpt/web-platform-tests/streams/readable-byte-streams/bad-buffers-and-views.any.js
index 0777208da44..d4ad483d9c3 100644
--- a/tests/wpt/web-platform-tests/streams/readable-byte-streams/bad-buffers-and-views.any.js
+++ b/tests/wpt/web-platform-tests/streams/readable-byte-streams/bad-buffers-and-views.any.js
@@ -212,8 +212,7 @@ async_test(t => {
 
       c.close();
 
-      const zeroLengthView = new Uint8Array(view.buffer, 0, 0);
-      assert_throws_js(TypeError, () => c.byobRequest.respondWithNewView(zeroLengthView));
+      assert_throws_js(TypeError, () => c.byobRequest.respondWithNewView(view));
     }),
     type: 'bytes'
   });
diff --git a/tests/wpt/web-platform-tests/tools/wptserve/setup.py b/tests/wpt/web-platform-tests/tools/wptserve/setup.py
index 759cb48d1f6..a9cc95f4c1a 100644
--- a/tests/wpt/web-platform-tests/tools/wptserve/setup.py
+++ b/tests/wpt/web-platform-tests/tools/wptserve/setup.py
@@ -1,7 +1,7 @@
 from setuptools import setup
 
 PACKAGE_VERSION = '3.0'
-deps = ["six>=1.8", "h2==3.0.1"]
+deps = ["six>=1.13.0", "h2==3.0.1"]
 
 setup(name='wptserve',
       version=PACKAGE_VERSION,
diff --git a/tests/wpt/web-platform-tests/webaudio/the-audio-api/the-audiobuffer-interface/ctor-audiobuffer.html b/tests/wpt/web-platform-tests/webaudio/the-audio-api/the-audiobuffer-interface/ctor-audiobuffer.html
index 9845d5eaba3..fbe6e42e317 100644
--- a/tests/wpt/web-platform-tests/webaudio/the-audio-api/the-audiobuffer-interface/ctor-audiobuffer.html
+++ b/tests/wpt/web-platform-tests/webaudio/the-audio-api/the-audiobuffer-interface/ctor-audiobuffer.html
@@ -211,17 +211,19 @@
         Promise
             .all([
               c1.startRendering().then(function(resultBuffer) {
-                return should(resultBuffer.getChannelData(0), 'c1 result')
-                    .beEqualToArray(data);
+                return resultBuffer;
               }),
               c2.startRendering().then(function(resultBuffer) {
-                return should(resultBuffer.getChannelData(0), 'c2 result')
-                    .beEqualToArray(data);
+                return resultBuffer;
               }),
             ])
-            .then(returnValues => {
+            .then(resultBuffers => {
+              let c1ResultValue = should(resultBuffers[0].getChannelData(0), 'c1 result')
+                  .beEqualToArray(data);
+              let c2ResultValue = should(resultBuffers[1].getChannelData(0), 'c2 result')
+                  .beEqualToArray(data);
               should(
-                  returnValues[0] && returnValues[1],
+                  c1ResultValue && c2ResultValue,
                   'AudioBuffer shared between two different contexts')
                   .message('correctly', 'incorrectly');
               task.done();