css: Enable registered custom properties with CSSOM but stay unanimatable by yezhizhen · Pull Request #42136 · servo/servo

yezhizhen · 2026-01-25T07:49:44Z

Many websites use Tailwind CSS script which utilizes registered custom properties.
This PR makes such websites look as expected, such as #42129.

Before:

After:

Testing: Updated existing WPT results.
Fixes: #42129
Fixes: #41417

Stylo Companion: servo/stylo#293

github-actions · 2026-01-25T08:01:55Z

🔨 Triggering try run (#21329329850) for Linux (WPT)

github-actions · 2026-01-25T08:32:42Z

Test results for linux-wpt from try job (#21329329850):

Flaky unexpected result (41)

OK /FileAPI/file/send-file-form-punctuation.html
- PASS [expected FAIL] subtest: Upload file-for-upload-in-form-LEFT-CURLY-BRACKET-[{].txt (ASCII) in UTF-8 form
TIMEOUT /FileAPI/url/url-in-tags-revoke.window.html (#19978)
- TIMEOUT [expected PASS] subtest: Fetching a blob URL immediately before revoking it works in <script> tags.
```
Test timed out
```
OK /IndexedDB/idbfactory-open-error-properties.any.html
- PASS [expected FAIL] subtest: Properties of error event from failed open()
OK /IndexedDB/idbfactory-open-error-properties.any.worker.html
- PASS [expected FAIL] subtest: Properties of error event from failed open()
OK /_mozilla/mozilla/getBoundingClientRect.html (#39668)
- FAIL [expected PASS] subtest: getBoundingClientRect 1
```
assert_equals: expected 62 but got 60.35
```
CRASH [expected PASS] /_mozilla/shadow-dom/move-element-with-ua-shadow-tree-crash.html (#39473)
FAIL [expected PASS] /css/css-backgrounds/background-size-042.html
OK /css/css-cascade/layer-cssom-order-reverse.html (#36094)
- PASS [expected FAIL] subtest: Delete layer invalidates @font-face
OK /css/cssom-view/offsetTopLeft-border-box.html (#40826)
- PASS [expected FAIL] subtest: container: 0
- PASS [expected FAIL] subtest: container: 1
OK /custom-elements/form-associated/ElementInternals-setFormValue.html (#29174)
- PASS [expected FAIL] subtest: Single value - empty name exists
OK /fetch/content-length/api-and-duplicate-headers.any.html (#35873)
- FAIL [expected PASS] subtest: fetch() and duplicate Content-Length/Content-Type headers
```
promise_test: Unhandled rejection with value: object "TypeError: Network error: HTTP failure: client error (SendRequest)"
```
OK [expected ERROR] /fetch/fetch-later/quota/same-origin-iframe/multiple-iframes.https.window.html (#35176)
OK /html/browsers/browsing-the-web/navigating-across-documents/005.html (#27062)
- PASS [expected FAIL] subtest: Link with onclick navigation and href navigation
OK /html/browsers/history/the-history-interface/traverse_the_history_4.html (#21383)
- PASS [expected FAIL] subtest: Multiple history traversals, last would be aborted
CRASH [expected OK] /html/browsers/windows/browsing-context-names/choose-_parent-004.html

OK [expected TIMEOUT] /html/interaction/focus/the-autofocus-attribute/supported-elements.html (#24145)

PASS [expected TIMEOUT] subtest: Non-HTMLElement should not support autofocus

FAIL [expected NOTRUN] subtest: Host element with delegatesFocus should support autofocus

assert_equals: expected Element node &lt;div autofocus=""&gt;&lt;/div&gt; but got Element node &lt;body&gt;&lt;/body&gt;

FAIL [expected NOTRUN] subtest: Host element with delegatesFocus including no focusable descendants should be skipped

assert_equals: expected Element node &lt;input autofocus=""&gt;&lt;/input&gt; but got Element node &lt;body&gt;&lt;div autofocus=""&gt;&lt;/div&gt;&lt;input autofocus=""&gt;&lt;/body&gt;

FAIL [expected NOTRUN] subtest: Area element should support autofocus

promise_test: Unhandled rejection with value: object "TypeError: can't access property "appendChild", w.document.querySelector(...) is null"

OK /html/semantics/document-metadata/the-meta-element/pragma-directives/attr-meta-http-equiv-refresh/allow-scripts-flag-changing-1.html (#39694)
- PASS [expected FAIL] subtest: Meta refresh is blocked by the allow-scripts sandbox flag at its creation time, not when refresh comes due
TIMEOUT [expected OK] /html/semantics/embedded-content/the-iframe-element/iframe_sandbox_navigate_other_frame_popup.sub.html (#39702)
- TIMEOUT [expected FAIL] subtest: Sandboxed iframe can not navigate other frame's popup
```
Test timed out
```
OK /html/semantics/forms/form-submission-0/multipart-formdata.window.html (#28725)
- PASS [expected FAIL] subtest: multipart/form-data: \n in value (normal form)
OK /html/semantics/forms/form-submission-0/text-plain.window.html (#28687)
- FAIL [expected PASS] subtest: text/plain: Basic test (formdata event)
```
assert_equals: expected "basic=test\r\n" but got ""
```
- PASS [expected FAIL] subtest: text/plain: 0x00 in value (formdata event)
OK /html/semantics/forms/form-submission-0/urlencoded2.window.html (#28687)
- FAIL [expected PASS] subtest: application/x-www-form-urlencoded: Basic test (formdata event)
```
assert_equals: expected "basic=test" but got ""
```
- FAIL [expected PASS] subtest: application/x-www-form-urlencoded: Basic File test (normal form)
```
assert_equals: expected "basic=file-test.txt" but got ""
```
OK /html/semantics/scripting-1/the-script-element/module/dynamic-import/blob-url.any.worker.html (#33909)
- FAIL [expected PASS] subtest: Revoking a blob URL immediately after calling import will not fail
```
promise_test: Unhandled rejection with value: object "TypeError: Module fetching failed"
```
OK [expected ERROR] /html/user-activation/no-activation-thru-escape-key.html (#40343)
OK /mixed-content/tentative/autoupgrades/video-upgrade.https.sub.html (#41135)
- FAIL [expected PASS] subtest: Video of other host autoupgraded
```
assert_equals: Length. Other host expected 1 but got Infinity
```
OK /navigation-timing/test-navigation-type-reload.html (#33334)
- PASS [expected FAIL] subtest: Reload domComplete > Original domComplete
- PASS [expected FAIL] subtest: Reload domContentLoadedEventEnd > Original domContentLoadedEventEnd
- PASS [expected FAIL] subtest: Reload domContentLoadedEventStart > Original domContentLoadedEventStart
- PASS [expected FAIL] subtest: Reload domInteractive > Original domInteractive
- PASS [expected FAIL] subtest: Reload fetchStart > Original fetchStart
- PASS [expected FAIL] subtest: Reload loadEventEnd > Original loadEventEnd
- PASS [expected FAIL] subtest: Reload loadEventStart > Original loadEventStart
OK /preload/prefetch-document.html (#37210)
- FAIL [expected PASS] subtest: different-site document prefetch with 'as=document' should not be consumed
```
assert_equals: expected 2 but got 1
```
TIMEOUT /resource-timing/test_resource_timing.html (#25720)
- PASS [expected FAIL] subtest: PerformanceEntry has correct name, initiatorType, startTime, and duration (img)
OK /touch-events/single-tap-when-touchend-listener-use-sync-xhr.html (#41175)
- PASS [expected FAIL] subtest: Click event should be fired when touchend opens synchronous XHR
CRASH [expected OK] /trusted-types/TrustedTypePolicyFactory-createPolicy-cspTests-noNamesGiven.html
CRASH [expected OK] /trusted-types/eval-csp-no-tt.html
TIMEOUT /trusted-types/trusted-types-navigation.html?31-35 (#38034)
- TIMEOUT [expected PASS] subtest: Navigate a frame via form-submission with javascript:-urls in report-only mode.
```
Test timed out
```
- NOTRUN [expected TIMEOUT] subtest: Navigate a frame via form-submission with javascript:-urls w/ default policy in report-only mode.
CRASH [expected OK] /wasm/webapi/esm-integration/wasm-to-wasm-link-error.tentative.html

OK /webaudio/the-audio-api/the-audiobuffersourcenode-interface/sub-sample-buffer-stitching.html (#22849)

FAIL [expected PASS] subtest: buffer-stitching-2

assert_approx_equals: Stitched sine‑wave buffers at sample rate 43800 sample[10240] |-9.834354747378109e+33 - 0.8695652484893799| = 9.834354747378109e+33 &gt; 0.0038986 expected 0.8695652484893799 +/- 0.0038986 but got -9.834354747378109e+33

OK /webdriver/tests/classic/element_click/events.py
- FAIL [expected PASS] subtest: test_event_mousemove
```
webdriver.error.NoSuchWindowException: no such window (404): No such window
```
OK /webdriver/tests/classic/element_click/navigate.py
- FAIL [expected PASS] subtest: test_numbers_link
```
webdriver.error.NoSuchWindowException: no such window (404): No such window
```
OK /webdriver/tests/classic/execute_async_script/user_prompts.py
- FAIL [expected PASS] subtest: test_accept[alert-None]
```
webdriver.error.NoSuchWindowException: no such window (404): No such window
```
OK /webdriver/tests/classic/get_element_tag_name/get.py
- ERROR [expected PASS] subtest: test_no_top_browsing_context
```
setup error: webdriver.error.NoSuchElementException: no such element (404)
```
OK /webdriver/tests/classic/perform_actions/key_special_keys.py
- ERROR [expected PASS] subtest: test_codepoint_keys_behave_correctly[\U0001f604]
```
setup error: webdriver.error.NoSuchWindowException: no such window (404): No such window
```
OK [expected TIMEOUT] /webstorage/localstorage-about-blank-3P-iframe-opens-3P-window.partitioned.html (#29053)
- PASS [expected TIMEOUT] subtest: StorageKey: test 3P about:blank window opened from a 3P iframe
ERROR [expected OK] /workers/baseurl/alpha/sharedworker-in-worker.html (#21315)
OK /xhr/send-redirect.htm (#32026)
- FAIL [expected PASS] subtest: XMLHttpRequest: send() - Redirects (basics) (301, GET, content.py)
```
assert_equals: expected (string) "GET" but got (object) null
```

Stable unexpected results that are known to be intermittent (27)

OK /IndexedDB/idbcursor-continuePrimaryKey-exceptions.any.html (#39277)

FAIL [expected PASS] subtest: IDBCursor continuePrimaryKey() on object store cursor

assert_throws_dom: continuePrimaryKey() should throw if source is not an index function "function() {
        cursor.continuePrimaryKey(2, 2);
      }" threw object "TypeError: cursor.continuePrimaryKey is not a function" that is not a DOMException InvalidAccessError: property "code" is equal to undefined, expected 15

OK /IndexedDB/idbcursor-continuePrimaryKey-exceptions.any.worker.html (#39277)

FAIL [expected PASS] subtest: IDBCursor continuePrimaryKey() on object store cursor

assert_throws_dom: continuePrimaryKey() should throw if source is not an index function "function() {
        cursor.continuePrimaryKey(2, 2);
      }" threw object "TypeError: cursor.continuePrimaryKey is not a function" that is not a DOMException InvalidAccessError: property "code" is equal to undefined, expected 15

OK /IndexedDB/idbobjectstore_getAll.any.html (#39276)
- PASS [expected FAIL] subtest: Get all values with transaction.commit()
OK /IndexedDB/idbobjectstore_getAll.any.worker.html (#39400)
- PASS [expected FAIL] subtest: Get all values with transaction.commit()
OK /IndexedDB/idbrequest-onupgradeneeded.any.html (#38895)
- PASS [expected FAIL] subtest: transaction oncomplete ordering relative to open request onsuccess
OK /IndexedDB/idbrequest-onupgradeneeded.any.worker.html (#38971)
- PASS [expected FAIL] subtest: transaction oncomplete ordering relative to open request onsuccess

OK /IndexedDB/key-conversion-exceptions.any.html (#39305)

FAIL [expected PASS] subtest: IDBCursor continue() method with throwing/invalid keys

assert_throws_exactly: key conversion with throwing getter should rethrow function "() =&gt; {
      receiver[method](key);
    }" threw object "TypeError: receiver[method] is not a function" but we expected it to throw object "getter: throwing from getter"

FAIL [expected PASS] subtest: IDBCursor update() method with throwing/invalid keys

assert_throws_exactly: throwing getter should rethrow during clone function "() =&gt; {
      cursor.update(value);
    }" threw object "TypeError: cursor.update is not a function" but we expected it to throw object "getter: throwing from getter"

OK /IndexedDB/key-conversion-exceptions.any.worker.html (#39284)

FAIL [expected PASS] subtest: IDBCursor continue() method with throwing/invalid keys

assert_throws_exactly: key conversion with throwing getter should rethrow function "() =&gt; {
      receiver[method](key);
    }" threw object "TypeError: receiver[method] is not a function" but we expected it to throw object "getter: throwing from getter"

FAIL [expected PASS] subtest: IDBCursor update() method with throwing/invalid keys

assert_throws_exactly: throwing getter should rethrow during clone function "() =&gt; {
      cursor.update(value);
    }" threw object "TypeError: cursor.update is not a function" but we expected it to throw object "getter: throwing from getter"

OK /IndexedDB/transaction-deactivation-timing.any.html (#38772)
- PASS [expected FAIL] subtest: New transactions are deactivated before next task
- PASS [expected FAIL] subtest: New transactions from microtask are deactivated before next task
OK /IndexedDB/transaction-deactivation-timing.any.worker.html (#38808)
- PASS [expected FAIL] subtest: New transactions are deactivated before next task
- PASS [expected FAIL] subtest: New transactions from microtask are deactivated before next task
FAIL [expected PASS] /_mozilla/mozilla/sslfail.html (#10760)
TIMEOUT [expected OK] /_mozilla/mozilla/window_resize_event.html (#36741)
- TIMEOUT [expected PASS] subtest: Popup onresize event fires after resizeTo
```
Test timed out
```
OK /css/css-cascade/layer-font-face-override.html (#35935)
- PASS [expected FAIL] subtest: @font-face override update with appended sheet 1
OK /css/css-fonts/generic-family-keywords-001.html (#37467)
- PASS [expected FAIL] subtest: @font-face matching for quoted and unquoted generic(kai)
- FAIL [expected PASS] subtest: @font-face matching for quoted and unquoted generic(nastaliq)
```
assert_equals: quoted generic(nastaliq) matches  @font-face rule expected 50 but got 30
```
OK /css/css-fonts/generic-family-keywords-003.html (#38994)
- FAIL [expected PASS] subtest: @font-face matching for quoted and unquoted fantasy (drawing text in a canvas)
```
assert_equals: quoted fantasy matches  @font-face rule expected 125 but got 40
```
- PASS [expected FAIL] subtest: @font-face matching for quoted and unquoted ui-serif (drawing text in a canvas)
OK [expected ERROR] /fetch/fetch-later/quota/same-origin-iframe/accumulated-oversized-payload.https.window.html (#41705)
OK /fetch/metadata/generated/css-font-face.https.sub.tentative.html (#32732)
- FAIL [expected PASS] subtest: sec-fetch-mode
```
promise_test: Unhandled rejection with value: object "Error: Failed to query for recorded headers."
```
- PASS [expected FAIL] subtest: sec-fetch-dest
- FAIL [expected PASS] subtest: sec-fetch-user
```
promise_test: Unhandled rejection with value: object "Error: Failed to query for recorded headers."
```
ERROR /fetch/metadata/generated/serviceworker.https.sub.html (#36247)
- FAIL [expected PASS] subtest: sec-fetch-site - Same origin, no options - registration
```
promise_test: Unhandled rejection with value: object "Error: Failed to query for recorded headers."
```
OK /html/browsers/browsing-the-web/navigating-across-documents/initial-empty-document/load-pageshow-events-window-open.html (#28691)
- FAIL [expected PASS] subtest: load event does not fire on window.open('about:blank')
```
assert_unreached: load should not be fired Reached unreachable code
```
OK /html/browsers/browsing-the-web/navigating-across-documents/navigation-unload-same-origin-fragment.html (#20768)
- PASS [expected FAIL] subtest: Tests that a fragment navigation in the unload handler will not block the initial navigation
TIMEOUT /html/semantics/embedded-content/media-elements/autoplay-allowed-by-feature-policy.https.sub.html (#41404)
- TIMEOUT [expected PASS] subtest: Feature-Policy header: autoplay * allows same-origin iframes.
```
Test timed out
```
TIMEOUT /html/semantics/embedded-content/media-elements/autoplay-default-feature-policy.https.sub.html (#41193)
- TIMEOUT [expected PASS] subtest: Default "autoplay" feature policy ["self"] allows same-origin iframes.
```
Test timed out
```
OK [expected TIMEOUT] /html/semantics/embedded-content/media-elements/src_object_blob.html (#40340)
- PASS [expected TIMEOUT] subtest: HTMLMediaElement.srcObject blob
OK /resource-timing/buffer-full-add-then-clear.html (#40819)
- FAIL [expected PASS] subtest: Test that if the buffer is cleared after entries were added to the secondary buffer, those entries make it into the primary one
```
assert_equals: Number of entries does not match the expected value. expected 3 but got 0
```
ERROR [expected OK] /resource-timing/cors-preflight.any.html (#28694)
OK [expected CRASH] /resource-timing/render-blocking-status-link.html (#41664)
TIMEOUT /resource-timing/test_resource_timing.https.html (#25216)
- FAIL [expected PASS] subtest: PerformanceEntry has correct name, initiatorType, startTime, and duration (img)
```
assert_equals: expected 20.480000000000018 but got 20.48
```

github-actions · 2026-01-25T08:32:49Z

✨ Try run (#21329329850) succeeded.

Loirooriol

First please create another PR to stop skipping tests:

servo/tests/wpt/include.ini

Lines 87 to 88 in 3b60a07

    
           [css-properties-values-api] 
        
             skip: true

Then in this PR we will see how many tests improve.

This will allow us to see the test improvements from #42136. Testing: Existing WPT --------- Signed-off-by: Euclid Ye <[email protected]>

github-actions · 2026-01-29T03:43:54Z

🔨 Triggering try run (#21464780680) for Linux (WPT)

github-actions · 2026-01-29T04:17:44Z

Test results for linux-wpt from try job (#21464780680):

Flaky unexpected result (38)

OK /FileAPI/file/send-file-form-controls.html

FAIL [expected PASS] subtest: Upload file-for-upload-in-form-VT-[�].txt (ASCII) in UTF-8 form

assert_greater_than: file-for-upload-in-form-VT-[�].txt: multipart form data must have at least 3 lines: "" expected a number greater than 2 but got 0

TIMEOUT /FileAPI/url/url-in-tags-revoke.window.html (#19978)
- TIMEOUT [expected PASS] subtest: Fetching a blob URL immediately before revoking it works in <script> tags.
```
Test timed out
```
OK /IndexedDB/idbfactory-databases-opaque-origin.html
- FAIL [expected PASS] subtest: IDBFactory.databases() in non-sandboxed iframe should not reject
```
assert_equals: IDBFactory.databases() should not reject expected "no exception" but got "OperationError"
```
OK /IndexedDB/idbfactory-open-error-properties.any.html
- PASS [expected FAIL] subtest: Properties of error event from failed open()
OK /IndexedDB/idbfactory-open-error-properties.any.worker.html
- PASS [expected FAIL] subtest: Properties of error event from failed open()
CRASH [expected OK] /_webgl/conformance/ogles/GL/swizzlers/swizzlers_097_to_104.html
CRASH [expected OK] /_webgl/conformance/rendering/gl-viewport-test.html
TIMEOUT /content-security-policy/inheritance/location-reload.html (#38983)
- FAIL [expected PASS] subtest: location.reload() of empty iframe.
```
assert_equals: Image should be blocked by CSP after reload. expected "img blocked" but got "img loaded"
```
FAIL [expected PASS] /css/css-backgrounds/background-size-041.html
OK /css/cssom-view/offsetTopLeft-border-box.html (#40826)
- PASS [expected FAIL] subtest: container: 0
- PASS [expected FAIL] subtest: container: 1
OK /fetch/metadata/generated/css-font-face.https.sub.tentative.html (#32732)
- FAIL [expected PASS] subtest: sec-fetch-mode
```
promise_test: Unhandled rejection with value: object "Error: Failed to query for recorded headers."
```
- PASS [expected FAIL] subtest: sec-fetch-dest
- FAIL [expected PASS] subtest: sec-fetch-user
```
promise_test: Unhandled rejection with value: object "Error: Failed to query for recorded headers."
```
ERROR [expected OK] /fetch/metadata/window-open.https.sub.html (#40339)
OK [expected ERROR] /focus/focus-event-after-switching-iframes.sub.html (#40368)
OK /html/browsers/browsing-the-web/navigating-across-documents/initial-empty-document/load-pageshow-events-iframe-contentWindow.html (#28681)
- FAIL [expected PASS] subtest: load & pageshow events do not fire on contentWindow of <iframe> element created with src='about:blank'
```
assert_unreached: load should not be fired Reached unreachable code
```
OK /html/browsers/browsing-the-web/navigating-across-documents/initial-empty-document/load-pageshow-events-window-open.html (#28691)
- FAIL [expected PASS] subtest: load event does not fire on window.open('about:blank')
```
assert_unreached: load should not be fired Reached unreachable code
```
OK /html/browsers/browsing-the-web/navigating-across-documents/navigation-unload-same-origin-fragment.html (#20768)
- PASS [expected FAIL] subtest: Tests that a fragment navigation in the unload handler will not block the initial navigation
OK /html/browsers/browsing-the-web/navigating-across-documents/navigation-unload-same-origin.window.html (#29049)
- PASS [expected FAIL] subtest: Same-origin navigation started from unload handler must be ignored
CRASH [expected TIMEOUT] /html/browsers/history/the-location-interface/location_replace_session_history.html (#41896)
CRASH [expected OK] /html/browsers/sandboxing/sandbox-initial-empty-document-toward-same-origin.html (#35948)
CRASH [expected TIMEOUT] /html/canvas/offscreen/text/2d.text.measure.fillTextCluster-baseline.tentative.w.html

OK [expected TIMEOUT] /html/interaction/focus/the-autofocus-attribute/supported-elements.html (#24145)

PASS [expected TIMEOUT] subtest: Non-HTMLElement should not support autofocus

FAIL [expected NOTRUN] subtest: Host element with delegatesFocus should support autofocus

assert_equals: expected Element node &lt;div autofocus=""&gt;&lt;/div&gt; but got Element node &lt;body&gt;&lt;/body&gt;

FAIL [expected NOTRUN] subtest: Host element with delegatesFocus including no focusable descendants should be skipped

assert_equals: expected Element node &lt;input autofocus=""&gt;&lt;/input&gt; but got Element node &lt;body&gt;&lt;div autofocus=""&gt;&lt;/div&gt;&lt;input autofocus=""&gt;&lt;/body&gt;

FAIL [expected NOTRUN] subtest: Area element should support autofocus

promise_test: Unhandled rejection with value: object "TypeError: can't access property "appendChild", w.document.querySelector(...) is null"

OK /html/semantics/document-metadata/the-meta-element/pragma-directives/attr-meta-http-equiv-refresh/allow-scripts-flag-changing-2.html (#39703)
- FAIL [expected PASS] subtest: Meta refresh of the original iframe is not blocked if moved into a sandboxed iframe
```
uncaught exception: Error: assert_unreached: The iframe into which the meta was moved must not refresh Reached unreachable code
```
OK [expected TIMEOUT] /html/semantics/embedded-content/media-elements/src_object_blob.html (#40340)
- PASS [expected TIMEOUT] subtest: HTMLMediaElement.srcObject blob

OK /html/semantics/embedded-content/the-iframe-element/iframe-loading-lazy-nav-window-open.html (#32596)

FAIL [expected PASS] subtest: Navigating iframe loading='lazy' before it is loaded: location.replace

uncaught exception: Error: assert_equals: expected "http://web-platform.test:8000/html/semantics/embedded-content/the-iframe-element/support/blank.htm?nav" but got "http://web-platform.test:8000/html/semantics/embedded-content/the-iframe-element/support/blank.htm?src"

TIMEOUT [expected OK] /html/semantics/embedded-content/the-iframe-element/iframe_sandbox_navigate_other_frame_popup.sub.html (#39702)
- TIMEOUT [expected FAIL] subtest: Sandboxed iframe can not navigate other frame's popup
```
Test timed out
```
OK /html/semantics/forms/form-submission-0/multipart-formdata.window.html (#28725)
- FAIL [expected PASS] subtest: multipart/form-data: Basic test (formdata event)
```
assert_equals: expected "\r\nContent-Disposition: form-data; name=\"basic\"\r\n\r\ntest\r\n--\r\n" but got ""
```
- FAIL [expected PASS] subtest: multipart/form-data: Basic File test (normal form)
```
assert_equals: expected "\r\nContent-Disposition: form-data; name=\"basic\"; filename=\"file-test.txt\"\r\nContent-Type: text/plain\r\n\r\n\r\n--\r\n" but got ""
```
- PASS [expected FAIL] subtest: multipart/form-data: 0x00 in name (formdata event)
- PASS [expected FAIL] subtest: multipart/form-data: 0x00 in value (normal form)
OK /html/semantics/forms/form-submission-0/text-plain.window.html (#28687)
- FAIL [expected PASS] subtest: text/plain: Basic test (formdata event)
```
assert_equals: expected "basic=test\r\n" but got ""
```
- PASS [expected FAIL] subtest: text/plain: 0x00 in filename (normal form)
- PASS [expected FAIL] subtest: text/plain: 0x00 in filename (formdata event)
OK [expected ERROR] /html/user-activation/no-activation-thru-escape-key.html (#40343)
CRASH [expected OK] /html/webappapis/scripting/processing-model-2/runtime-error-same-origin-with-hash.html
CRASH [expected OK] /html/webappapis/system-state-and-capabilities/the-navigator-object/secure_context.html
OK /navigation-timing/test-navigation-type-reload.html (#33334)
- PASS [expected FAIL] subtest: Reload domComplete > Original domComplete
- PASS [expected FAIL] subtest: Reload domContentLoadedEventEnd > Original domContentLoadedEventEnd
- PASS [expected FAIL] subtest: Reload domContentLoadedEventStart > Original domContentLoadedEventStart
- PASS [expected FAIL] subtest: Reload fetchStart > Original fetchStart
- PASS [expected FAIL] subtest: Reload loadEventEnd > Original loadEventEnd
- PASS [expected FAIL] subtest: Reload loadEventStart > Original loadEventStart
OK /preload/prefetch-document.html (#37210)
- FAIL [expected PASS] subtest: different-site document prefetch with 'as=document' should not be consumed
```
assert_equals: expected 2 but got 1
```
OK /touch-events/single-tap-when-touchend-listener-use-sync-xhr.html (#41175)
- PASS [expected FAIL] subtest: Click event should be fired when touchend opens synchronous XHR
TIMEOUT /trusted-types/trusted-types-navigation.html?06-10 (#37920)
- TIMEOUT [expected FAIL] subtest: Navigate a frame via anchor with javascript:-urls in report-only mode.
```
Test timed out
```
- NOTRUN [expected TIMEOUT] subtest: Navigate a frame via anchor with javascript:-urls w/ default policy in report-only mode.
OK /webdriver/tests/classic/element_send_keys/file_upload.py
- FAIL [expected PASS] subtest: test_empty_text
```
webdriver.error.NoSuchWindowException: no such window (404): No such window
```
OK /webdriver/tests/classic/execute_script/execute.py
- ERROR [expected PASS] subtest: test_no_top_browsing_context
```
setup error: webdriver.error.NoSuchElementException: no such element (404)
```
OK /webdriver/tests/classic/find_elements_from_element/user_prompts.py
- FAIL [expected PASS] subtest: test_accept[alert-None]
```
webdriver.error.NoSuchWindowException: no such window (404): No such window
```
ERROR [expected OK] /workers/baseurl/alpha/sharedworker-in-worker.html (#21315)

Stable unexpected results that are known to be intermittent (31)

OK /IndexedDB/idbcursor-continuePrimaryKey-exceptions.any.html (#39277)

FAIL [expected PASS] subtest: IDBCursor continuePrimaryKey() on object store cursor

assert_throws_dom: continuePrimaryKey() should throw if source is not an index function "function() {
        cursor.continuePrimaryKey(2, 2);
      }" threw object "TypeError: cursor.continuePrimaryKey is not a function" that is not a DOMException InvalidAccessError: property "code" is equal to undefined, expected 15

OK /IndexedDB/idbcursor-continuePrimaryKey-exceptions.any.worker.html (#39277)

FAIL [expected PASS] subtest: IDBCursor continuePrimaryKey() on object store cursor

assert_throws_dom: continuePrimaryKey() should throw if source is not an index function "function() {
        cursor.continuePrimaryKey(2, 2);
      }" threw object "TypeError: cursor.continuePrimaryKey is not a function" that is not a DOMException InvalidAccessError: property "code" is equal to undefined, expected 15

OK /IndexedDB/idbobjectstore_getAll.any.html (#39276)
- PASS [expected FAIL] subtest: Get all values with transaction.commit()
OK /IndexedDB/idbobjectstore_getAll.any.worker.html (#39400)
- PASS [expected FAIL] subtest: Get all values with transaction.commit()
OK /IndexedDB/idbrequest-onupgradeneeded.any.html (#38895)
- PASS [expected FAIL] subtest: transaction oncomplete ordering relative to open request onsuccess
OK /IndexedDB/idbrequest-onupgradeneeded.any.worker.html (#38971)
- PASS [expected FAIL] subtest: transaction oncomplete ordering relative to open request onsuccess

OK /IndexedDB/key-conversion-exceptions.any.html (#39305)

FAIL [expected PASS] subtest: IDBCursor continue() method with throwing/invalid keys

assert_throws_exactly: key conversion with throwing getter should rethrow function "() =&gt; {
      receiver[method](key);
    }" threw object "TypeError: receiver[method] is not a function" but we expected it to throw object "getter: throwing from getter"

FAIL [expected PASS] subtest: IDBCursor update() method with throwing/invalid keys

assert_throws_exactly: throwing getter should rethrow during clone function "() =&gt; {
      cursor.update(value);
    }" threw object "TypeError: cursor.update is not a function" but we expected it to throw object "getter: throwing from getter"

OK /IndexedDB/key-conversion-exceptions.any.worker.html (#39284)

FAIL [expected PASS] subtest: IDBCursor continue() method with throwing/invalid keys

assert_throws_exactly: key conversion with throwing getter should rethrow function "() =&gt; {
      receiver[method](key);
    }" threw object "TypeError: receiver[method] is not a function" but we expected it to throw object "getter: throwing from getter"

FAIL [expected PASS] subtest: IDBCursor update() method with throwing/invalid keys

assert_throws_exactly: throwing getter should rethrow during clone function "() =&gt; {
      cursor.update(value);
    }" threw object "TypeError: cursor.update is not a function" but we expected it to throw object "getter: throwing from getter"

OK /IndexedDB/transaction-deactivation-timing.any.worker.html (#38808)
- PASS [expected FAIL] subtest: New transactions are deactivated before next task
- PASS [expected FAIL] subtest: New transactions from microtask are deactivated before next task
FAIL [expected PASS] /_mozilla/mozilla/sslfail.html (#10760)
TIMEOUT [expected OK] /_mozilla/mozilla/window_resize_event.html (#36741)
- TIMEOUT [expected PASS] subtest: Popup onresize event fires after resizeTo
```
Test timed out
```
CRASH [expected PASS] /_mozilla/shadow-dom/move-element-with-ua-shadow-tree-crash.html (#39473)
OK /css/css-cascade/layer-cssom-order-reverse.html (#36094)
- PASS [expected FAIL] subtest: Delete layer invalidates @font-face
OK /css/css-cascade/layer-font-face-override.html (#35935)
- FAIL [expected PASS] subtest: @font-face override update with appended sheet 2
```
assert_equals: expected "80px" but got "38.3166666666667px"
```
OK /css/css-fonts/generic-family-keywords-001.html (#37467)
- PASS [expected FAIL] subtest: @font-face matching for quoted and unquoted generic(fangsong)
OK /css/css-fonts/generic-family-keywords-003.html (#38994)
- FAIL [expected PASS] subtest: @font-face matching for quoted and unquoted serif (drawing text in a canvas)
```
assert_equals: quoted serif matches  @font-face rule expected 125 but got 40
```
- FAIL [expected PASS] subtest: @font-face matching for quoted and unquoted fantasy (drawing text in a canvas)
```
assert_equals: quoted fantasy matches  @font-face rule expected 125 but got 40
```
- PASS [expected FAIL] subtest: @font-face matching for quoted and unquoted generic(kai) (drawing text in a canvas)
- PASS [expected FAIL] subtest: @font-face matching for quoted and unquoted generic(khmer-mul) (drawing text in a canvas)
- PASS [expected FAIL] subtest: @font-face matching for quoted and unquoted generic(nastaliq) (drawing text in a canvas)
OK [expected ERROR] /fetch/fetch-later/quota/same-origin-iframe/accumulated-oversized-payload.https.window.html (#41705)
OK [expected ERROR] /fetch/fetch-later/quota/same-origin-iframe/multiple-iframes.https.window.html (#35176)
OK [expected ERROR] /fetch/fetch-later/quota/same-origin-iframe/sandboxed-iframe.https.window.html (#41704)
OK /fetch/metadata/generated/css-font-face.sub.tentative.html (#34624)
- PASS [expected FAIL] subtest: sec-fetch-storage-access - Not sent to non-trustworthy cross-site destination
TIMEOUT /fetch/metadata/generated/css-images.https.sub.tentative.html (#42229)
- FAIL [expected PASS] subtest: content sec-fetch-site - Same-Origin -> Same Origin
```
assert_unreached: Reached unreachable code
```
TIMEOUT /fetch/metadata/generated/css-images.sub.tentative.html (#29047)
- FAIL [expected PASS] subtest: content sec-fetch-site - Not sent to non-trustworthy cross-site destination
```
assert_unreached: Reached unreachable code
```
- PASS [expected FAIL] subtest: content sec-fetch-site - HTTPS downgrade-upgrade
OK /html/browsers/browsing-the-web/navigating-across-documents/navigation-unload-cross-origin.sub.window.html (#29056)
- PASS [expected FAIL] subtest: Cross-origin navigation started from unload handler must be ignored
OK /html/semantics/document-metadata/the-meta-element/pragma-directives/attr-meta-http-equiv-refresh/allow-scripts-flag-changing-1.html (#39694)
- PASS [expected FAIL] subtest: Meta refresh is blocked by the allow-scripts sandbox flag at its creation time, not when refresh comes due
TIMEOUT /html/semantics/embedded-content/media-elements/autoplay-default-feature-policy.https.sub.html (#41193)
- TIMEOUT [expected PASS] subtest: Default "autoplay" feature policy ["self"] allows same-origin iframes.
```
Test timed out
```
TIMEOUT /html/semantics/embedded-content/media-elements/autoplay-disabled-by-feature-policy.https.sub.html (#41221)
- TIMEOUT [expected FAIL] subtest: Feature-Policy header: autoplay "none" disallows same-origin iframes.
```
Test timed out
```
OK [expected CRASH] /resource-timing/render-blocking-status-link.html (#41664)
OK [expected TIMEOUT] /resource-timing/test_resource_timing.html (#25720)
- PASS [expected TIMEOUT] subtest: window.performance.getEntriesByName() and window.performance.getEntriesByNameType() return same data (link)
- FAIL [expected NOTRUN] subtest: PerformanceEntry has correct name, initiatorType, startTime, and duration (link)
```
assert_equals: expected 8.360000000000003 but got 8.35
```
- FAIL [expected NOTRUN] subtest: PerformanceEntry has correct order of timing attributes (link)
```
assert_greater_than_equal: domainLookupEnd after domainLookupStart expected a number greater than or equal to 32.27 but got 0
```
- FAIL [expected NOTRUN] subtest: PerformanceEntry has correct network transfer attributes (link)
```
assert_equals: encodedBodySize size expected 44 but got 0
```
- FAIL [expected NOTRUN] subtest: PerformanceEntry has correct protocol attribute (link)
```
assert_equals: expected protocol expected "http/1.1" but got ""
```
OK [expected TIMEOUT] /resource-timing/test_resource_timing.https.html (#25216)
- FAIL [expected PASS] subtest: PerformanceEntry has correct name, initiatorType, startTime, and duration (img)
```
assert_equals: expected 10.189999999999998 but got 10.19
```
- PASS [expected TIMEOUT] subtest: window.performance.getEntriesByName() and window.performance.getEntriesByNameType() return same data (link)
- FAIL [expected NOTRUN] subtest: PerformanceEntry has correct name, initiatorType, startTime, and duration (link)
```
assert_equals: expected 8.990000000000002 but got 8.98
```
- FAIL [expected NOTRUN] subtest: PerformanceEntry has correct order of timing attributes (link)
```
assert_greater_than_equal: domainLookupEnd after domainLookupStart expected a number greater than or equal to 38.18 but got 0
```
- FAIL [expected NOTRUN] subtest: PerformanceEntry has correct network transfer attributes (link)
```
assert_equals: encodedBodySize size expected 44 but got 0
```
- FAIL [expected NOTRUN] subtest: PerformanceEntry has correct protocol attribute (link)
```
assert_equals: expected protocol expected "http/1.1" but got ""
```
- PASS [expected FAIL] subtest: PerformanceEntry has correct name, initiatorType, startTime, and duration (xmlhttprequest)
TIMEOUT [expected OK] /trusted-types/trusted-types-navigation.html?01-05 (#38975)
- TIMEOUT [expected PASS] subtest: Navigate a window via anchor with javascript:-urls in report-only mode.
```
Test timed out
```
- NOTRUN [expected PASS] subtest: Navigate a window via anchor with javascript:-urls w/ default policy in report-only mode.
- NOTRUN [expected PASS] subtest: Navigate a frame via anchor with javascript:-urls in enforcing mode.
OK [expected TIMEOUT] /webstorage/localstorage-about-blank-3P-iframe-opens-3P-window.partitioned.html (#29053)
- PASS [expected TIMEOUT] subtest: StorageKey: test 3P about:blank window opened from a 3P iframe

github-actions · 2026-01-31T12:32:29Z

🔨 Triggering try run (#21544529885) for Linux (WPT)

Signed-off-by: Euclid Ye <[email protected]>

github-actions · 2026-01-31T13:00:13Z

Test results for linux-wpt from try job (#21544529885):

Flaky unexpected result (31)

OK /FileAPI/file/send-file-form-punctuation.html
- PASS [expected FAIL] subtest: Upload file-for-upload-in-form-LEFT-CURLY-BRACKET-[{].txt (ASCII) in UTF-8 form

OK /FileAPI/file/send-file-form-utf-8.html

FAIL [expected PASS] subtest: Upload file-for-upload-in-form-.txt (x-user-defined) in UTF-8 form

assert_greater_than: file-for-upload-in-form-.txt: multipart form data must have at least 3 lines: "" expected a number greater than 2 but got 0

FAIL [expected PASS] subtest: Upload file-for-upload-in-form-â˜ºðŸ˜‚.txt (windows-1252) in UTF-8 form

assert_greater_than: file-for-upload-in-form-â˜ºðŸ˜‚.txt: multipart form data must have at least 3 lines: "" expected a number greater than 2 but got 0

TIMEOUT /FileAPI/url/url-in-tags-revoke.window.html (#19978)
- TIMEOUT [expected PASS] subtest: Fetching a blob URL immediately before revoking it works in <script> tags.
```
Test timed out
```
OK /IndexedDB/idbfactory-open-error-properties.any.html
- PASS [expected FAIL] subtest: Properties of error event from failed open()
OK /IndexedDB/idbfactory-open-error-properties.any.worker.html
- PASS [expected FAIL] subtest: Properties of error event from failed open()
OK /_mozilla/mozilla/getBoundingClientRect.html (#39668)
- FAIL [expected PASS] subtest: getBoundingClientRect 1
```
assert_equals: expected 62 but got 60.35
```
CRASH [expected OK] /_webgl/conformance2/wasm/readpixels-2gb-in-4gb-wasm-memory.html
OK /beacon/beacon-basic.https.window.html (#41723)
- FAIL [expected PASS] subtest: Payload size restriction should be accumulated: type = blob
```
assert_false: expected false got true
```
CRASH [expected PASS] /css/css-overflow/scroll-marker-in-display-none-column-crash.html
OK /css/css-shadow/font-face-006.html
- FAIL [expected PASS] subtest: @font-face from document applies to to :host::before/::after.
```
assert_greater_than: expected a number greater than 160 but got 105
```
OK /custom-elements/form-associated/ElementInternals-setFormValue.html (#29174)
- PASS [expected FAIL] subtest: Single value - empty name exists
- PASS [expected FAIL] subtest: Multiple values - name content attribute is ignored
TIMEOUT [expected OK] /fetch/api/redirect/redirect-keepalive.https.any.html (#32153)
- TIMEOUT [expected PASS] subtest: [keepalive][iframe][load] mixed content redirect; setting up
```
Test timed out
```
CRASH [expected OK] /fetch/metadata/generated/element-iframe.https.sub.html (#40341)
ERROR /fetch/metadata/generated/serviceworker.https.sub.html (#36247)
- FAIL [expected PASS] subtest: sec-fetch-site - Same origin, no options - registration
```
promise_test: Unhandled rejection with value: object "Error: Failed to query for recorded headers."
```
ERROR [expected OK] /fetch/metadata/window-open.https.sub.html (#40339)
OK /html/browsers/browsing-the-web/navigating-across-documents/005.html (#27062)
- PASS [expected FAIL] subtest: Link with onclick navigation and href navigation
OK [expected TIMEOUT] /html/interaction/focus/the-autofocus-attribute/update-the-rendering.html (#24145)
- FAIL [expected TIMEOUT] subtest: "Flush autofocus candidates" should be happen before a scroll event and animation frame callbacks
```
assert_array_equals: animationFrame lengths differ, expected array ["autofocus", "scroll", "animationFrame"] length 3, got ["animationFrame"] length 1
```
TIMEOUT /html/semantics/embedded-content/media-elements/autoplay-disabled-by-feature-policy.https.sub.html (#41221)
- TIMEOUT [expected FAIL] subtest: Feature-Policy header: autoplay "none" disallows same-origin iframes.
```
Test timed out
```
TIMEOUT [expected OK] /html/semantics/embedded-content/the-iframe-element/iframe_sandbox_navigate_other_frame_popup.sub.html (#39702)
- TIMEOUT [expected FAIL] subtest: Sandboxed iframe can not navigate other frame's popup
```
Test timed out
```

OK /html/semantics/forms/form-submission-0/multipart-formdata.window.html (#28725)

FAIL [expected PASS] subtest: multipart/form-data: Basic File test (normal form)

assert_equals: expected "\r\nContent-Disposition: form-data; name=\"basic\"; filename=\"file-test.txt\"\r\nContent-Type: text/plain\r\n\r\n\r\n--\r\n" but got ""

OK /html/semantics/forms/form-submission-0/text-plain.window.html (#28687)
- FAIL [expected PASS] subtest: text/plain: Basic test (formdata event)
```
assert_equals: expected "basic=test\r\n" but got ""
```
- FAIL [expected PASS] subtest: text/plain: Basic File test (normal form)
```
assert_equals: expected "basic=file-test.txt\r\n" but got ""
```
- PASS [expected FAIL] subtest: text/plain: double quote in value (normal form)
OK /html/semantics/forms/form-submission-0/urlencoded2.window.html (#28687)
- FAIL [expected PASS] subtest: application/x-www-form-urlencoded: Basic test (formdata event)
```
assert_equals: expected "basic=test" but got ""
```
- PASS [expected FAIL] subtest: application/x-www-form-urlencoded: 0x00 in value (normal form)
- PASS [expected FAIL] subtest: application/x-www-form-urlencoded: \r\n in name (normal form)
OK [expected ERROR] /html/user-activation/no-activation-thru-escape-key.html (#40343)
OK /mixed-content/tentative/autoupgrades/mixed-content-cors.https.sub.html (#41123)
- FAIL [expected PASS] subtest: Cross-Origin audio should get upgraded even if CORS is set
```
assert_equals: Length of other host audio is correct expected 1 but got Infinity
```
- FAIL [expected PASS] subtest: Cross-Origin video should get upgraded even if CORS is set
```
assert_equals: Length. Other host expected 1 but got Infinity
```
OK /preload/prefetch-document.html (#37210)
- FAIL [expected PASS] subtest: different-site document prefetch with 'as=document' should not be consumed
```
assert_equals: expected 2 but got 1
```
TIMEOUT [expected OK] /shadow-dom/event-with-related-target.html
OK [expected TIMEOUT] /trusted-types/trusted-types-navigation.html?06-10 (#37920)
- PASS [expected TIMEOUT] subtest: Navigate a frame via anchor with javascript:-urls w/ default policy in report-only mode.
- FAIL [expected NOTRUN] subtest: Navigate a window via anchor with javascript:-urls w/ a default policy throwing an exception in enforcing mode.
```
promise_test: Unhandled rejection with value: "Unexpected message received: \"No securitypolicyviolation reported!\""
```
- FAIL [expected NOTRUN] subtest: Navigate a window via anchor with javascript:-urls w/ a default policy throwing an exception in report-only mode.
```
promise_test: Unhandled rejection with value: "Unexpected message received: \"No securitypolicyviolation reported!\""
```

OK /webaudio/the-audio-api/the-audiobuffersourcenode-interface/sub-sample-buffer-stitching.html (#22849)

FAIL [expected PASS] subtest: buffer-stitching-2

assert_approx_equals: Stitched sine‑wave buffers at sample rate 43800 sample[23682] |9.160655874015774e+25 - 0.9785897135734558| = 9.160655874015774e+25 &gt; 0.0038986 expected 0.9785897135734558 +/- 0.0038986 but got 9.160655874015774e+25

OK [expected TIMEOUT] /webstorage/localstorage-about-blank-3P-iframe-opens-3P-window.partitioned.html (#29053)
- PASS [expected TIMEOUT] subtest: StorageKey: test 3P about:blank window opened from a 3P iframe
OK /webxr/xrSession_features_deviceSupport.https.html (#24357)
- FAIL [expected PASS] subtest: Immersive XRSession requests with no supported device should reject
```
assert_unreached: Should have rejected: undefined Reached unreachable code
```
ERROR [expected OK] /workers/baseurl/alpha/sharedworker-in-worker.html (#21315)

Stable unexpected results that are known to be intermittent (26)

OK /IndexedDB/idbcursor-continuePrimaryKey-exceptions.any.html (#39277)

FAIL [expected PASS] subtest: IDBCursor continuePrimaryKey() on object store cursor

assert_throws_dom: continuePrimaryKey() should throw if source is not an index function "function() {
        cursor.continuePrimaryKey(2, 2);
      }" threw object "TypeError: cursor.continuePrimaryKey is not a function" that is not a DOMException InvalidAccessError: property "code" is equal to undefined, expected 15

OK /IndexedDB/idbcursor-continuePrimaryKey-exceptions.any.worker.html (#39277)

FAIL [expected PASS] subtest: IDBCursor continuePrimaryKey() on object store cursor

assert_throws_dom: continuePrimaryKey() should throw if source is not an index function "function() {
        cursor.continuePrimaryKey(2, 2);
      }" threw object "TypeError: cursor.continuePrimaryKey is not a function" that is not a DOMException InvalidAccessError: property "code" is equal to undefined, expected 15

OK /IndexedDB/idbobjectstore_getAll.any.html (#39276)
- PASS [expected FAIL] subtest: Get all values with transaction.commit()
OK /IndexedDB/idbobjectstore_getAll.any.worker.html (#39400)
- PASS [expected FAIL] subtest: Get all values with transaction.commit()
OK /IndexedDB/idbrequest-onupgradeneeded.any.html (#38895)
- PASS [expected FAIL] subtest: transaction oncomplete ordering relative to open request onsuccess
OK /IndexedDB/idbrequest-onupgradeneeded.any.worker.html (#38971)
- PASS [expected FAIL] subtest: transaction oncomplete ordering relative to open request onsuccess

OK /IndexedDB/key-conversion-exceptions.any.html (#39305)

FAIL [expected PASS] subtest: IDBCursor continue() method with throwing/invalid keys

assert_throws_exactly: key conversion with throwing getter should rethrow function "() =&gt; {
      receiver[method](key);
    }" threw object "TypeError: receiver[method] is not a function" but we expected it to throw object "getter: throwing from getter"

FAIL [expected PASS] subtest: IDBCursor update() method with throwing/invalid keys

assert_throws_exactly: throwing getter should rethrow during clone function "() =&gt; {
      cursor.update(value);
    }" threw object "TypeError: cursor.update is not a function" but we expected it to throw object "getter: throwing from getter"

OK /IndexedDB/key-conversion-exceptions.any.worker.html (#39284)

FAIL [expected PASS] subtest: IDBCursor continue() method with throwing/invalid keys

assert_throws_exactly: key conversion with throwing getter should rethrow function "() =&gt; {
      receiver[method](key);
    }" threw object "TypeError: receiver[method] is not a function" but we expected it to throw object "getter: throwing from getter"

FAIL [expected PASS] subtest: IDBCursor update() method with throwing/invalid keys

assert_throws_exactly: throwing getter should rethrow during clone function "() =&gt; {
      cursor.update(value);
    }" threw object "TypeError: cursor.update is not a function" but we expected it to throw object "getter: throwing from getter"

FAIL [expected PASS] /_mozilla/mozilla/sslfail.html (#10760)
TIMEOUT [expected OK] /_mozilla/mozilla/window_resize_event.html (#36741)
- TIMEOUT [expected PASS] subtest: Popup onresize event fires after resizeTo
```
Test timed out
```
TIMEOUT /content-security-policy/inheritance/location-reload.html (#38983)
- FAIL [expected PASS] subtest: location.reload() of empty iframe.
```
assert_equals: Image should be blocked by CSP after reload. expected "img blocked" but got "img loaded"
```
OK /css/css-cascade/layer-cssom-order-reverse.html (#36094)
- PASS [expected FAIL] subtest: Delete layer invalidates @font-face
OK /css/css-cascade/layer-font-face-override.html (#35935)
- FAIL [expected PASS] subtest: @font-face override update with appended sheet 2
```
assert_equals: expected "80px" but got "38.3166666666667px"
```
OK /css/css-fonts/generic-family-keywords-003.html (#38994)
- FAIL [expected PASS] subtest: @font-face matching for quoted and unquoted fantasy (drawing text in a canvas)
```
assert_equals: quoted fantasy matches  @font-face rule expected 125 but got 40
```
OK /css/cssom-view/offsetTopLeft-border-box.html (#40826)
- PASS [expected FAIL] subtest: container: 0
- PASS [expected FAIL] subtest: container: 1
OK [expected ERROR] /fetch/fetch-later/quota/same-origin-iframe/multiple-iframes.https.window.html (#35176)
TIMEOUT /fetch/metadata/generated/css-images.https.sub.tentative.html (#42229)
- FAIL [expected PASS] subtest: content sec-fetch-site - Same-Origin -> Same Origin
```
assert_unreached: Reached unreachable code
```
TIMEOUT /fetch/metadata/generated/css-images.sub.tentative.html (#29047)
- PASS [expected FAIL] subtest: content sec-fetch-site - HTTPS downgrade-upgrade
CRASH [expected TIMEOUT] /html/browsers/history/the-location-interface/location_replace_session_history.html (#41896)
TIMEOUT [expected OK] /html/interaction/focus/the-autofocus-attribute/autofocus-dialog.html (#29087)
- TIMEOUT [expected FAIL] subtest: <dialog>-contained autofocus element gets focused when the dialog is shown
```
Test timed out
```
OK /html/semantics/document-metadata/the-meta-element/pragma-directives/attr-meta-http-equiv-refresh/allow-scripts-flag-changing-1.html (#39694)
- PASS [expected FAIL] subtest: Meta refresh is blocked by the allow-scripts sandbox flag at its creation time, not when refresh comes due
TIMEOUT /html/semantics/embedded-content/media-elements/autoplay-allowed-by-feature-policy.https.sub.html (#41404)
- TIMEOUT [expected PASS] subtest: Feature-Policy header: autoplay * allows same-origin iframes.
```
Test timed out
```
TIMEOUT /html/semantics/embedded-content/media-elements/autoplay-default-feature-policy.https.sub.html (#41193)
- TIMEOUT [expected PASS] subtest: Default "autoplay" feature policy ["self"] allows same-origin iframes.
```
Test timed out
```
OK [expected TIMEOUT] /resource-timing/test_resource_timing.html (#25720)
- PASS [expected FAIL] subtest: PerformanceEntry has correct name, initiatorType, startTime, and duration (img)
- PASS [expected TIMEOUT] subtest: window.performance.getEntriesByName() and window.performance.getEntriesByNameType() return same data (link)
- FAIL [expected NOTRUN] subtest: PerformanceEntry has correct name, initiatorType, startTime, and duration (link)
```
assert_equals: expected 2.479999999999997 but got 2.47
```
- FAIL [expected NOTRUN] subtest: PerformanceEntry has correct order of timing attributes (link)
```
assert_greater_than_equal: domainLookupEnd after domainLookupStart expected a number greater than or equal to 34.08 but got 0
```
- FAIL [expected NOTRUN] subtest: PerformanceEntry has correct network transfer attributes (link)
```
assert_equals: encodedBodySize size expected 44 but got 0
```
- FAIL [expected NOTRUN] subtest: PerformanceEntry has correct protocol attribute (link)
```
assert_equals: expected protocol expected "http/1.1" but got ""
```
OK [expected TIMEOUT] /resource-timing/test_resource_timing.https.html (#25216)
- FAIL [expected PASS] subtest: PerformanceEntry has correct name, initiatorType, startTime, and duration (img)
```
assert_equals: expected 10.409999999999997 but got 10.41
```
- PASS [expected TIMEOUT] subtest: window.performance.getEntriesByName() and window.performance.getEntriesByNameType() return same data (link)
- FAIL [expected NOTRUN] subtest: PerformanceEntry has correct name, initiatorType, startTime, and duration (link)
```
assert_equals: expected 9.179999999999996 but got 9.17
```
- FAIL [expected NOTRUN] subtest: PerformanceEntry has correct order of timing attributes (link)
```
assert_greater_than_equal: domainLookupEnd after domainLookupStart expected a number greater than or equal to 31.29 but got 0
```
- FAIL [expected NOTRUN] subtest: PerformanceEntry has correct network transfer attributes (link)
```
assert_equals: encodedBodySize size expected 44 but got 0
```
- FAIL [expected NOTRUN] subtest: PerformanceEntry has correct protocol attribute (link)
```
assert_equals: expected protocol expected "http/1.1" but got ""
```
TIMEOUT [expected OK] /trusted-types/trusted-types-navigation.html?01-05 (#38975)
- TIMEOUT [expected PASS] subtest: Navigate a window via anchor with javascript:-urls in report-only mode.
```
Test timed out
```
- NOTRUN [expected PASS] subtest: Navigate a window via anchor with javascript:-urls w/ default policy in report-only mode.
- NOTRUN [expected PASS] subtest: Navigate a frame via anchor with javascript:-urls in enforcing mode.

github-actions · 2026-01-31T13:00:21Z

✨ Try run (#21544529885) succeeded.

github-actions · 2026-01-31T13:03:05Z

🔨 Triggering try run (#21544890366) for Linux (WPT)

github-actions · 2026-01-31T13:33:38Z

Test results for linux-wpt from try job (#21544890366):

Flaky unexpected result (32)

OK /FileAPI/file/send-file-form-controls.html

FAIL [expected PASS] subtest: Upload file-for-upload-in-form-BS-[�].txt (ASCII) in UTF-8 form

assert_greater_than: file-for-upload-in-form-BS-[�].txt: multipart form data must have at least 3 lines: "" expected a number greater than 2 but got 0

FAIL [expected PASS] subtest: Upload file-for-upload-in-form-VT-[�].txt (ASCII) in UTF-8 form

assert_greater_than: file-for-upload-in-form-VT-[�].txt: multipart form data must have at least 3 lines: "" expected a number greater than 2 but got 0

OK /IndexedDB/idbfactory-open-error-properties.any.html
- PASS [expected FAIL] subtest: Properties of error event from failed open()
OK /IndexedDB/idbfactory-open-error-properties.any.worker.html
- PASS [expected FAIL] subtest: Properties of error event from failed open()
OK /_mozilla/mozilla/getBoundingClientRect.html (#39668)
- FAIL [expected PASS] subtest: getBoundingClientRect 1
```
assert_equals: expected 62 but got 60.35
```
CRASH [expected OK] /_webgl/conformance2/wasm/readpixels-2gb-in-4gb-wasm-memory.html
OK /beacon/beacon-basic.https.window.html (#41723)
- FAIL [expected PASS] subtest: Payload size restriction should be accumulated: type = arraybuffer
```
assert_false: expected false got true
```
TIMEOUT /content-security-policy/inheritance/location-reload.html (#38983)
- FAIL [expected PASS] subtest: location.reload() of empty iframe.
```
assert_equals: Image should be blocked by CSP after reload. expected "img blocked" but got "img loaded"
```
TIMEOUT [expected PASS] /css/css-content/element-replacement-image-no-src.tentative.html
CRASH [expected PASS] /css/css-overflow/scroll-marker-in-display-none-column-crash.html
OK [expected ERROR] /fetch/fetch-later/quota/same-origin-iframe/sandboxed-iframe.https.window.html (#41704)
ERROR [expected TIMEOUT] /html/browsers/browsing-the-web/history-traversal/pageswap/pageswap-initial-navigation.html (#40387)
OK /html/browsers/browsing-the-web/navigating-across-documents/initial-empty-document/load-pageshow-events-iframe-contentWindow.html (#28681)
- FAIL [expected PASS] subtest: load & pageshow events do not fire on contentWindow of <iframe> element created with src='about:blank'
```
assert_unreached: load should not be fired Reached unreachable code
```
OK /html/browsers/browsing-the-web/navigating-across-documents/navigation-unload-cross-origin.sub.window.html (#29056)
- PASS [expected FAIL] subtest: Cross-origin navigation started from unload handler must be ignored
CRASH [expected OK] /html/browsers/browsing-the-web/unloading-documents/unload/002.html
OK /html/semantics/document-metadata/the-meta-element/pragma-directives/attr-meta-http-equiv-refresh/allow-scripts-flag-changing-2.html (#39703)
- FAIL [expected PASS] subtest: Meta refresh of the original iframe is not blocked if moved into a sandboxed iframe
```
uncaught exception: Error: assert_unreached: The iframe into which the meta was moved must not refresh Reached unreachable code
```
TIMEOUT /html/semantics/embedded-content/media-elements/autoplay-allowed-by-feature-policy.https.sub.html (#41404)
- PASS [expected TIMEOUT] subtest: Feature-Policy header: autoplay * allows the top-level document.
- TIMEOUT [expected PASS] subtest: Feature-Policy header: autoplay * allows same-origin iframes.
```
Test timed out
```
TIMEOUT /html/semantics/embedded-content/media-elements/autoplay-default-feature-policy.https.sub.html (#41193)
- TIMEOUT [expected PASS] subtest: Default "autoplay" feature policy ["self"] allows same-origin iframes.
```
Test timed out
```
TIMEOUT [expected OK] /html/semantics/embedded-content/the-iframe-element/iframe_sandbox_navigate_other_frame_popup.sub.html (#39702)
- TIMEOUT [expected FAIL] subtest: Sandboxed iframe can not navigate other frame's popup
```
Test timed out
```
OK /html/semantics/forms/form-submission-0/jsurl-form-submit.tentative.html (#36489)
- PASS [expected FAIL] subtest: Verifies that form submissions scheduled inside javascript: urls take precedence over the javascript: url's return value.
OK /html/semantics/forms/form-submission-0/multipart-formdata.window.html (#28725)
- FAIL [expected PASS] subtest: multipart/form-data: Basic test (formdata event)
```
assert_equals: expected "\r\nContent-Disposition: form-data; name=\"basic\"\r\n\r\ntest\r\n--\r\n" but got ""
```
- PASS [expected FAIL] subtest: multipart/form-data: 0x00 in value (formdata event)
- PASS [expected FAIL] subtest: multipart/form-data: single quote in filename (formdata event)
OK /html/semantics/forms/form-submission-0/text-plain.window.html (#28687)
- FAIL [expected PASS] subtest: text/plain: Basic File test (normal form)
```
assert_equals: expected "basic=file-test.txt\r\n" but got ""
```
- PASS [expected FAIL] subtest: text/plain: \r\n in name (normal form)
CRASH [expected OK] /imagebitmap-renderingcontext/context-creation.html
OK /mixed-content/tentative/autoupgrades/audio-upgrade.https.sub.html (#41697)
- FAIL [expected PASS] subtest: Audio autoupgraded
```
assert_equals: Length expected 1 but got Infinity
```
OK /mixed-content/tentative/autoupgrades/mixed-content-cors.https.sub.html (#41123)
- FAIL [expected PASS] subtest: Cross-Origin video should get upgraded even if CORS is set
```
assert_equals: Length. Other host expected 1 but got Infinity
```
OK /navigation-timing/test-navigation-type-reload.html (#33334)
- PASS [expected FAIL] subtest: Reload domComplete > Original domComplete
- PASS [expected FAIL] subtest: Reload domContentLoadedEventEnd > Original domContentLoadedEventEnd
- PASS [expected FAIL] subtest: Reload loadEventEnd > Original loadEventEnd
- PASS [expected FAIL] subtest: Reload loadEventStart > Original loadEventStart
PASS [expected FAIL] /png/apng/acTL-plays-one.html (#41218)
OK /service-workers/service-worker/fetch-event.https.html (#36234)
- PASS [expected FAIL] subtest: Service Worker falls back to network in fetch event with POST form
TIMEOUT [expected OK] /trusted-types/trusted-types-navigation.html?01-05 (#38975)
- TIMEOUT [expected PASS] subtest: Navigate a window via anchor with javascript:-urls in report-only mode.
```
Test timed out
```
- NOTRUN [expected PASS] subtest: Navigate a window via anchor with javascript:-urls w/ default policy in report-only mode.
- NOTRUN [expected PASS] subtest: Navigate a frame via anchor with javascript:-urls in enforcing mode.
TIMEOUT /trusted-types/trusted-types-navigation.html?06-10 (#37920)
- TIMEOUT [expected FAIL] subtest: Navigate a frame via anchor with javascript:-urls in report-only mode.
```
Test timed out
```
- NOTRUN [expected TIMEOUT] subtest: Navigate a frame via anchor with javascript:-urls w/ default policy in report-only mode.
OK /webdriver/tests/classic/element_click/user_prompts.py
- FAIL [expected PASS] subtest: test_accept[alert-None]
```
webdriver.error.NoSuchWindowException: no such window (404): No such window
```
OK /webdriver/tests/classic/element_send_keys/scroll_into_view.py
- FAIL [expected PASS] subtest: test_element_outside_of_not_scrollable_viewport
```
webdriver.error.NoSuchWindowException: no such window (404): No such window
```
OK /webdriver/tests/classic/new_window/new.py
- ERROR [expected PASS] subtest: test_no_top_browsing_context
```
setup error: webdriver.error.NoSuchElementException: no such element (404)
```

Stable unexpected results that are known to be intermittent (27)

OK /IndexedDB/idbcursor-continuePrimaryKey-exceptions.any.html (#39277)

FAIL [expected PASS] subtest: IDBCursor continuePrimaryKey() on object store cursor

assert_throws_dom: continuePrimaryKey() should throw if source is not an index function "function() {
        cursor.continuePrimaryKey(2, 2);
      }" threw object "TypeError: cursor.continuePrimaryKey is not a function" that is not a DOMException InvalidAccessError: property "code" is equal to undefined, expected 15

OK /IndexedDB/idbcursor-continuePrimaryKey-exceptions.any.worker.html (#39277)

FAIL [expected PASS] subtest: IDBCursor continuePrimaryKey() on object store cursor

assert_throws_dom: continuePrimaryKey() should throw if source is not an index function "function() {
        cursor.continuePrimaryKey(2, 2);
      }" threw object "TypeError: cursor.continuePrimaryKey is not a function" that is not a DOMException InvalidAccessError: property "code" is equal to undefined, expected 15

OK /IndexedDB/idbobjectstore_getAll.any.html (#39276)
- PASS [expected FAIL] subtest: Get all values with transaction.commit()
OK /IndexedDB/idbobjectstore_getAll.any.worker.html (#39400)
- PASS [expected FAIL] subtest: Get all values with transaction.commit()
OK /IndexedDB/idbrequest-onupgradeneeded.any.html (#38895)
- PASS [expected FAIL] subtest: transaction oncomplete ordering relative to open request onsuccess
OK /IndexedDB/idbrequest-onupgradeneeded.any.worker.html (#38971)
- PASS [expected FAIL] subtest: transaction oncomplete ordering relative to open request onsuccess

OK /IndexedDB/key-conversion-exceptions.any.html (#39305)

FAIL [expected PASS] subtest: IDBCursor continue() method with throwing/invalid keys

assert_throws_exactly: key conversion with throwing getter should rethrow function "() =&gt; {
      receiver[method](key);
    }" threw object "TypeError: receiver[method] is not a function" but we expected it to throw object "getter: throwing from getter"

FAIL [expected PASS] subtest: IDBCursor update() method with throwing/invalid keys

assert_throws_exactly: throwing getter should rethrow during clone function "() =&gt; {
      cursor.update(value);
    }" threw object "TypeError: cursor.update is not a function" but we expected it to throw object "getter: throwing from getter"

OK /IndexedDB/key-conversion-exceptions.any.worker.html (#39284)

FAIL [expected PASS] subtest: IDBCursor continue() method with throwing/invalid keys

assert_throws_exactly: key conversion with throwing getter should rethrow function "() =&gt; {
      receiver[method](key);
    }" threw object "TypeError: receiver[method] is not a function" but we expected it to throw object "getter: throwing from getter"

FAIL [expected PASS] subtest: IDBCursor update() method with throwing/invalid keys

assert_throws_exactly: throwing getter should rethrow during clone function "() =&gt; {
      cursor.update(value);
    }" threw object "TypeError: cursor.update is not a function" but we expected it to throw object "getter: throwing from getter"

OK /IndexedDB/transaction-deactivation-timing.any.worker.html (#38808)
- PASS [expected FAIL] subtest: New transactions are deactivated before next task
FAIL [expected PASS] /_mozilla/mozilla/sslfail.html (#10760)
TIMEOUT [expected OK] /_mozilla/mozilla/window_resize_event.html (#36741)
- TIMEOUT [expected PASS] subtest: Popup onresize event fires after resizeTo
```
Test timed out
```

OK /_webgl/conformance/textures/misc/texture-upload-size.html (#21770)

FAIL [expected PASS] subtest: WebGL test #45

assert_true: Texture was smaller than the expected size 2x2 expected true got false

FAIL [expected PASS] subtest: WebGL test #47

assert_true: getError expected: INVALID_VALUE. Was NO_ERROR : when calling texSubImage2D with the same texture upload with offset 1, 1 expected true got false

FAIL [expected PASS] subtest: WebGL test #49

assert_true: Texture was smaller than the expected size 2x2 expected true got false

FAIL [expected PASS] subtest: WebGL test #51

assert_true: getError expected: INVALID_VALUE. Was NO_ERROR : when calling texSubImage2D with the same texture upload with offset 1, 1 expected true got false

PASS [expected FAIL] subtest: WebGL test #53
PASS [expected FAIL] subtest: WebGL test #55
PASS [expected FAIL] subtest: WebGL test #57
PASS [expected FAIL] subtest: WebGL test #59

FAIL [expected PASS] subtest: WebGL test #61

assert_true: Texture was smaller than the expected size 2x2 expected true got false

FAIL [expected PASS] subtest: WebGL test #63

assert_true: getError expected: INVALID_VALUE. Was NO_ERROR : when calling texSubImage2D with the same texture upload with offset 1, 1 expected true got false

And 10 more unexpected results...

OK /css/css-cascade/layer-font-face-override.html (#35935)
- FAIL [expected PASS] subtest: @font-face override update with appended sheet 2
```
assert_equals: expected "80px" but got "38.3166666666667px"
```
OK /css/css-fonts/generic-family-keywords-001.html (#37467)
- FAIL [expected PASS] subtest: @font-face matching for quoted and unquoted generic(nastaliq)
```
assert_equals: quoted generic(nastaliq) matches  @font-face rule expected 50 but got 30
```
OK /css/css-fonts/generic-family-keywords-003.html (#38994)
- FAIL [expected PASS] subtest: @font-face matching for quoted and unquoted fantasy (drawing text in a canvas)
```
assert_equals: quoted fantasy matches  @font-face rule expected 125 but got 40
```
- PASS [expected FAIL] subtest: @font-face matching for quoted and unquoted generic(khmer-mul) (drawing text in a canvas)
- PASS [expected FAIL] subtest: @font-face matching for quoted and unquoted generic(nastaliq) (drawing text in a canvas)
OK /css/cssom-view/offsetTopLeft-border-box.html (#40826)
- PASS [expected FAIL] subtest: container: 0
- PASS [expected FAIL] subtest: container: 1
OK /fetch/metadata/generated/css-font-face.https.sub.tentative.html (#32732)
- PASS [expected FAIL] subtest: sec-fetch-dest
- FAIL [expected PASS] subtest: sec-fetch-user
```
promise_test: Unhandled rejection with value: object "Error: Failed to query for recorded headers."
```
OK /fetch/metadata/generated/css-font-face.sub.tentative.html (#34624)
- FAIL [expected PASS] subtest: sec-fetch-storage-access - Not sent to non-trustworthy same-site destination
```
promise_test: Unhandled rejection with value: object "Error: Failed to query for recorded headers."
```
- PASS [expected FAIL] subtest: sec-fetch-storage-access - Not sent to non-trustworthy cross-site destination
TIMEOUT /fetch/metadata/generated/css-images.sub.tentative.html (#29047)
- PASS [expected FAIL] subtest: content sec-fetch-site - HTTPS downgrade-upgrade
ERROR /fetch/metadata/generated/serviceworker.https.sub.html (#36247)
- FAIL [expected PASS] subtest: sec-fetch-site - Same origin, no options - registration
```
promise_test: Unhandled rejection with value: object "Error: Failed to query for recorded headers."
```
OK /html/browsers/browsing-the-web/navigating-across-documents/replace-before-load/a-click.html (#28697)
- PASS [expected FAIL] subtest: aElement.click() before the load event must NOT replace
TIMEOUT /html/interaction/focus/the-autofocus-attribute/supported-elements.html (#24145)
- PASS [expected TIMEOUT] subtest: Non-HTMLElement should not support autofocus
- FAIL [expected NOTRUN] subtest: Host element with delegatesFocus should support autofocus
```
assert_equals: expected Element node &lt;div autofocus=""&gt;&lt;/div&gt; but got Element node &lt;body&gt;&lt;div autofocus=""&gt;&lt;/div&gt;&lt;/body&gt;
```
- TIMEOUT [expected NOTRUN] subtest: Host element with delegatesFocus including no focusable descendants should be skipped
```
Test timed out
```
OK /html/semantics/document-metadata/the-meta-element/pragma-directives/attr-meta-http-equiv-refresh/allow-scripts-flag-changing-1.html (#39694)
- PASS [expected FAIL] subtest: Meta refresh is blocked by the allow-scripts sandbox flag at its creation time, not when refresh comes due
TIMEOUT /html/semantics/embedded-content/media-elements/autoplay-disabled-by-feature-policy.https.sub.html (#41221)
- TIMEOUT [expected FAIL] subtest: Feature-Policy header: autoplay "none" disallows same-origin iframes.
```
Test timed out
```
OK [expected TIMEOUT] /resource-timing/test_resource_timing.html (#25720)
- PASS [expected TIMEOUT] subtest: window.performance.getEntriesByName() and window.performance.getEntriesByNameType() return same data (link)
- FAIL [expected NOTRUN] subtest: PerformanceEntry has correct name, initiatorType, startTime, and duration (link)
```
assert_equals: expected 11.489999999999998 but got 11.48
```
- FAIL [expected NOTRUN] subtest: PerformanceEntry has correct order of timing attributes (link)
```
assert_greater_than_equal: domainLookupEnd after domainLookupStart expected a number greater than or equal to 32.66 but got 0
```
- FAIL [expected NOTRUN] subtest: PerformanceEntry has correct network transfer attributes (link)
```
assert_equals: encodedBodySize size expected 44 but got 0
```
- FAIL [expected NOTRUN] subtest: PerformanceEntry has correct protocol attribute (link)
```
assert_equals: expected protocol expected "http/1.1" but got ""
```
- PASS [expected FAIL] subtest: PerformanceEntry has correct name, initiatorType, startTime, and duration (xmlhttprequest)
OK [expected TIMEOUT] /resource-timing/test_resource_timing.https.html (#25216)
- FAIL [expected PASS] subtest: PerformanceEntry has correct name, initiatorType, startTime, and duration (img)
```
assert_equals: expected 9.04 but got 9.03
```
- PASS [expected TIMEOUT] subtest: window.performance.getEntriesByName() and window.performance.getEntriesByNameType() return same data (link)
- FAIL [expected NOTRUN] subtest: PerformanceEntry has correct name, initiatorType, startTime, and duration (link)
```
assert_equals: expected 5.890000000000001 but got 5.88
```
- FAIL [expected NOTRUN] subtest: PerformanceEntry has correct order of timing attributes (link)
```
assert_greater_than_equal: domainLookupEnd after domainLookupStart expected a number greater than or equal to 23.17 but got 0
```
- FAIL [expected NOTRUN] subtest: PerformanceEntry has correct network transfer attributes (link)
```
assert_equals: encodedBodySize size expected 44 but got 0
```
- FAIL [expected NOTRUN] subtest: PerformanceEntry has correct protocol attribute (link)
```
assert_equals: expected protocol expected "http/1.1" but got ""
```
ERROR [expected OK] /webxr/render_state_update.https.html (#27535)

Stable unexpected results (1)

OK /css/css-properties-values-api/at-property-cssom.html
- PASS [expected FAIL] subtest: Rule for --tab tab has expected cssText

github-actions · 2026-01-31T13:33:45Z

⚠️ Try run (#21544890366) failed!

Signed-off-by: Euclid Ye <[email protected]>

components/script_bindings/webidls/CSSPropertyRule.webidl

This will add support for `@property` rules. Servo Companion: servo/servo#42136 Note that registered properties don't animate correctly: #38 Signed-off-by: Euclid Ye <[email protected]>

Signed-off-by: Euclid Ye <[email protected]>

This will add support for `@property` rules. Servo Companion: servo/servo#42136 Note that registered properties don't animate correctly: #38 Signed-off-by: Euclid Ye <[email protected]>

yezhizhen requested a review from xiaochengh January 25, 2026 07:49

servo-highfive added the S-awaiting-review There is new code that needs to be reviewed. label Jan 25, 2026

yezhizhen requested review from Loirooriol and mrobinson January 25, 2026 07:49

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Enable layout.css.properties-and-values.enabled servo/stylo#293

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nicoburns approved these changes Jan 25, 2026

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servo-highfive removed the S-awaiting-review There is new code that needs to be reviewed. label Jan 25, 2026

yezhizhen changed the title ~~css: Enable custom properties~~ css: Enable custom properties but stays unanimatable Jan 26, 2026

yezhizhen changed the title ~~css: Enable custom properties but stays unanimatable~~ css: Enable custom properties but staying unanimatable Jan 26, 2026

yezhizhen changed the title ~~css: Enable custom properties but staying unanimatable~~ css: Enable custom properties but stay unanimatable Jan 26, 2026

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servo-highfive added S-needs-rebase There are merge conflict errors. S-needs-code-changes Changes have not yet been made that were requested by a reviewer. labels Jan 28, 2026

Loirooriol changed the title ~~css: Enable custom properties but stay unanimatable~~ css: Enable registered custom properties but stay unanimatable Jan 28, 2026

yezhizhen mentioned this pull request Jan 28, 2026

wpt: Unskip css-properties-values-api tests #42222

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wpt: Unskip css-properties-values-api tests (#42222)

185b9e7

This will allow us to see the test improvements from #42136. Testing: Existing WPT --------- Signed-off-by: Euclid Ye <[email protected]>

yezhizhen force-pushed the property-test branch from 8a22cd3 to 5922206 Compare January 29, 2026 02:38

servo-highfive added S-awaiting-review There is new code that needs to be reviewed. and removed S-needs-code-changes Changes have not yet been made that were requested by a reviewer. S-needs-rebase There are merge conflict errors. labels Jan 29, 2026

yezhizhen force-pushed the property-test branch from 5922206 to 0ba2569 Compare January 29, 2026 02:56

yezhizhen added the T-linux-wpt Do a try run of the WPT label Jan 29, 2026

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yezhizhen force-pushed the property-test branch from cfa3c6a to c489012 Compare January 31, 2026 12:28

yezhizhen added the T-linux-wpt Do a try run of the WPT label Jan 31, 2026

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yezhizhen marked this pull request as draft January 31, 2026 12:50

patch name field serialization

e881177

Signed-off-by: Euclid Ye <[email protected]>

yezhizhen added the T-linux-wpt Do a try run of the WPT label Jan 31, 2026

github-actions bot removed the T-linux-wpt Do a try run of the WPT label Jan 31, 2026

final wpt

1331020

Signed-off-by: Euclid Ye <[email protected]>

yezhizhen marked this pull request as ready for review January 31, 2026 13:35

Loirooriol approved these changes Jan 31, 2026

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yezhizhen added 2 commits January 31, 2026 22:03

format webidl

8b81ba0

Signed-off-by: Euclid Ye <[email protected]>

Revert cargo

fce0346

Signed-off-by: Euclid Ye <[email protected]>

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servo-highfive added the S-awaiting-merge The PR is in the process of compiling and running tests on the automated CI. label Jan 31, 2026

Merged via the queue into servo:main with commit 624e9b4 Jan 31, 2026
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yezhizhen commented Jan 25, 2026 •

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