Clone request/response bodies per Fetch spec concept-body-clone by Taym95 · Pull Request #40825 · servo/servo

Taym95 · 2025-11-22T22:48:25Z

Implement clone_body_stream_for_dom_body to follow https://fetch.spec.whatwg.org/#concept-body-clone, teeing the ReadableStream and wiring the branched streams back into the original and cloned bodies.

Use clone_body_stream_for_dom_body in Request::clone_from and Response::Clone so their body cloning follows the Fetch spec algorithms for request/response cloning, including the shared body stream.

Testing: more WPT test should pass.

Fixes: #36503

github-actions · 2025-11-22T22:49:01Z

🔨 Triggering try run (#19602321468) for Linux (WPT)

github-actions · 2025-11-22T23:18:59Z

Test results for linux-wpt from try job (#19602321468):

Flaky unexpected result (31)

OK /IndexedDB/idbfactory_open.any.html
- FAIL [expected PASS] subtest: Calling open() with version argument 1.5 should not throw.
```
assert_equals: version expected 1 but got 9007199254740991
```
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)
OK /_mozilla/webxr/create_session.https.html
- FAIL [expected PASS] subtest: create_session
```
can't access property "simulateDeviceConnection", navigator.xr.test is undefined
```
ERROR [expected TIMEOUT] /_mozilla/webxr/sessionavailable.https.html
CRASH [expected ERROR] /_webgl/conformance2/textures/misc/tex-input-validation.html (#38890)
CRASH [expected OK] /cookiestore/idlharness.https.any.worker.html
FAIL [expected PASS] /css/css-backgrounds/background-size-042.html
OK /css/css-fonts/generic-family-keywords-003.html (#38994)
- PASS [expected FAIL] subtest: @font-face matching for quoted and unquoted fantasy (drawing text in a canvas)
- PASS [expected FAIL] subtest: @font-face matching for quoted and unquoted generic(nastaliq) (drawing text in a canvas)
TIMEOUT [expected CRASH] /fetch/metadata/window-open.https.sub.html (#40339)
OK /html/browsers/browsing-the-web/navigating-across-documents/005.html (#27062)
- FAIL [expected PASS] subtest: Link with onclick navigation and href navigation
```
assert_equals: expected "href" but got "click"
```
OK /html/browsers/browsing-the-web/navigating-across-documents/008.html (#24456)
- PASS [expected FAIL] subtest: Link with onclick form submit to javascript url and href navigation

OK /html/browsers/browsing-the-web/navigating-across-documents/refresh/same-document-refresh.html (#34597)

FAIL [expected PASS] subtest: Same-Document Referrer from Refresh

assert_equals: original page loads expected "http://web-platform.test:8000/html/browsers/browsing-the-web/navigating-across-documents/refresh/resources/refresh-with-section.sub.html?url=%23section" but got "http://web-platform.test:8000/html/browsers/browsing-the-web/navigating-across-documents/refresh/resources/refresh-with-section.sub.html?url=%23section#section"

OK /html/browsers/windows/embedded-opener-remove-frame.html (#23867)

FAIL [expected PASS] subtest: opener of discarded auxiliary browsing context

assert_object_equals: property "get" expected function "function opener() {
    [native code]
}" got function "function opener() {
    [native code]
}"

TIMEOUT [expected OK] /html/interaction/focus/the-autofocus-attribute/update-the-rendering.html (#24145)
- TIMEOUT [expected FAIL] subtest: "Flush autofocus candidates" should be happen before a scroll event and animation frame callbacks
```
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
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/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 ""
```
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 ""
```
CRASH [expected TIMEOUT] /html/semantics/links/links-created-by-a-and-area-elements/target_blank_implicit_noopener.html

OK /html/semantics/scripting-1/the-script-element/execution-timing/077.html (#22139)

FAIL [expected PASS] subtest: adding several types of scripts through the DOM and removing some of them confuses scheduler

assert_array_equals: expected property 1 to be "Script #1 ran" but got "Script #3 ran" (expected array ["Script #2 ran", "Script #1 ran", "Script #3 ran", "Script #4 ran"] got ["Script #2 ran", "Script #3 ran", "Script #4 ran", "Script #1 ran"])

OK [expected ERROR] /html/user-activation/no-activation-thru-escape-key.html (#40343)
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/preload-xhr.html (#39092)
- FAIL [expected PASS] subtest: Make an XHR request immediately after creating link rel=preload.
```
assert_equals: resources/dummy.xml?token=65352b0b-2e51-4a13-9c29-5778aa95caf9 expected 1 but got 0
```
OK /resource-timing/buffer-full-add-then-clear.html (#40819)
- PASS [expected FAIL] subtest: Test that if the buffer is cleared after entries were added to the secondary buffer, those entries make it into the primary one
CRASH [expected OK] /trusted-types/Element-setAttribute-setAttributeNS-sinks.tentative.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] /trusted-types/trusted-types-reporting-for-Document-execCommand.html
CRASH [expected OK] /wasm/webapi/esm-integration/worklet-import-source-phase.tentative.https.html

OK /webdriver/tests/classic/perform_actions/wheel.py

FAIL [expected PASS] subtest: test_scroll_iframe

webdriver.error.TimeoutException: timeout (500): Timed out after 0.5 seconds with message: Didn't receive all events: expected at least 1, got 0

Stable unexpected results that are known to be intermittent (24)

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()
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)
- PASS [expected FAIL] subtest: WebGL test #45
- PASS [expected FAIL] subtest: WebGL test #47
- PASS [expected FAIL] subtest: WebGL test #49
- PASS [expected FAIL] subtest: WebGL test #51
- FAIL [expected PASS] subtest: WebGL test #53
```
assert_true: Texture was smaller than the expected size 2x2 expected true got false
```
- FAIL [expected PASS] subtest: WebGL test #55
```
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 #57
```
assert_true: Texture was smaller than the expected size 2x2 expected true got false
```
- FAIL [expected PASS] subtest: WebGL test #59
```
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 #61
- PASS [expected FAIL] subtest: WebGL test #63
- And 6 more unexpected results...
OK /css/css-cascade/layer-cssom-order-reverse.html (#36094)
- PASS [expected FAIL] subtest: Delete layer invalidates @font-face
OK /css/css-fonts/generic-family-keywords-001.html (#37467)
- FAIL [expected PASS] subtest: @font-face matching for quoted and unquoted generic(khmer-mul)
```
assert_equals: quoted generic(khmer-mul) matches  @font-face rule expected 50 but got 30
```
OK /fetch/api/cors/cors-cookies.any.html (#40668)
- FAIL [expected PASS] subtest: Include mode: 1 cookie
```
assert_equals: Request includes cookie(s) expected "a=1" but got "a=1; domain-attribute-host-with-leading-period=0"
```
- FAIL [expected PASS] subtest: Include mode: local cookies are not sent with remote request
```
assert_false: Request should have no cookie expected false got true
```
- FAIL [expected PASS] subtest: Include mode: remote cookies are not sent with local request
```
assert_false: Request should have no cookie expected false got true
```
- FAIL [expected PASS] subtest: Include mode: remote cookies are not sent with other remote request
```
assert_false: Request should have no cookie expected false got true
```
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
```
OK /fetch/metadata/generated/css-font-face.https.sub.tentative.html (#32732)
- PASS [expected FAIL] subtest: sec-fetch-dest
- PASS [expected FAIL] subtest: sec-fetch-user
- FAIL [expected PASS] subtest: sec-fetch-storage-access - Cross-site
```
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)
- PASS [expected FAIL] subtest: sec-fetch-storage-access - Not sent to non-trustworthy same-site destination
- FAIL [expected PASS] subtest: sec-fetch-storage-access - Not sent to non-trustworthy cross-site destination
```
promise_test: Unhandled rejection with value: object "Error: Failed to query for recorded headers."
```
OK /fetch/metadata/generated/element-img-environment-change.https.sub.html (#30111)
- PASS [expected FAIL] subtest: sec-fetch-site - Cross-site, no attributes
- FAIL [expected PASS] subtest: sec-fetch-site - Same site, no attributes
```
promise_test: Unhandled rejection with value: object "Error: Failed to query for recorded headers."
```
- FAIL [expected PASS] subtest: sec-fetch-site - Same-Origin -> Same-Site -> Same-Origin redirect, no attributes
```
promise_test: Unhandled rejection with value: object "Error: Failed to query for recorded headers."
```
- FAIL [expected PASS] subtest: sec-fetch-site - Cross-Site -> Same-Site, no attributes
```
promise_test: Unhandled rejection with value: object "Error: Failed to query for recorded headers."
```
- FAIL [expected PASS] subtest: sec-fetch-site - Same-Origin -> Same Origin, no attributes
```
promise_test: Unhandled rejection with value: object "Error: Failed to query for recorded headers."
```
- FAIL [expected PASS] subtest: sec-fetch-site - Same-Origin -> Cross-Site, no attributes
```
promise_test: Unhandled rejection with value: object "Error: Failed to query for recorded headers."
```
- PASS [expected FAIL] subtest: sec-fetch-site - Same-Site -> Same Origin, no attributes
- FAIL [expected PASS] subtest: sec-fetch-site - Same-Site -> Same-Site, no attributes
```
promise_test: Unhandled rejection with value: object "Error: Failed to query for recorded headers."
```
- PASS [expected FAIL] subtest: sec-fetch-mode - no attributes
- FAIL [expected PASS] subtest: sec-fetch-mode - attributes: crossorigin
```
promise_test: Unhandled rejection with value: object "Error: Failed to query for recorded headers."
```
- And 1 more unexpected results...
OK /fetch/metadata/generated/element-img-environment-change.sub.html (#30111)
- PASS [expected FAIL] subtest: sec-fetch-site - Not sent to non-trustworthy cross-site destination, no attributes
- PASS [expected FAIL] subtest: sec-fetch-mode - Not sent to non-trustworthy same-origin destination, no attributes
- PASS [expected FAIL] subtest: sec-fetch-mode - Not sent to non-trustworthy cross-site destination, no attributes
- PASS [expected FAIL] subtest: sec-fetch-dest - Not sent to non-trustworthy cross-site destination, no attributes
- PASS [expected FAIL] subtest: sec-fetch-user - Not sent to non-trustworthy cross-site destination, no attributes
- PASS [expected FAIL] subtest: sec-fetch-storage-access - Not sent to non-trustworthy same-origin destination, no attributes
OK /html/browsers/browsing-the-web/navigating-across-documents/navigation-unload-cross-origin.sub.window.html (#29056)
- FAIL [expected PASS] subtest: Cross-origin navigation started from unload handler must be ignored
```
promise_test: Unhandled rejection with value: object "SecurityError: The operation is insecure."
```
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
ERROR [expected OK] /html/infrastructure/common-dom-interfaces/collections/domstringlist.html (#40665)
OK [expected TIMEOUT] /html/interaction/focus/the-autofocus-attribute/autofocus-dialog.html (#29087)
- FAIL [expected TIMEOUT] subtest: <dialog>-contained autofocus element gets focused when the dialog is shown
```
assert_equals: expected "DIV" but got "BODY"
```
TIMEOUT [expected OK] /html/interaction/focus/the-autofocus-attribute/document-with-fragment-nonexistent.html (#28259)
- TIMEOUT [expected FAIL] subtest: Autofocus elements in top-level browsing context's documents with non-existent fragments should work.
```
Test timed out
```
TIMEOUT /html/interaction/focus/the-autofocus-attribute/supported-elements.html (#24145)
- FAIL [expected TIMEOUT] subtest: Element with tabindex should support autofocus
```
assert_equals: expected "SPAN" but got "BODY"
```
- PASS [expected NOTRUN] subtest: Non-HTMLElement should not support autofocus
- TIMEOUT [expected NOTRUN] subtest: Host element with delegatesFocus should support autofocus
```
Test timed out
```

OK /html/webappapis/user-prompts/print-during-unload.html (#35944)

FAIL [expected PASS] subtest: print() during unload

assert_array_equals: expected property 1 to be "destination" but got "error: window.print is not a function" (expected array ["start", "destination"] got ["start", "error: window.print is not a function"])

CRASH [expected OK] /pointerevents/compat/pointerevent_touch-action_two-finger_interaction.html (#40418)

OK /preload/preload-error.sub.html (#37177)

FAIL [expected PASS] subtest: success (fetch): main

assert_greater_than: http://web-platform.test:8000/preload/resources/dummy.xml?label=fetch should be loaded expected a number greater than 0 but got 0

PASS [expected FAIL] subtest: CORS (fetch): main

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 /trusted-types/trusted-types-navigation.html?26-30 (#38807)
- PASS [expected FAIL] subtest: Navigate a window via form-submission with javascript:-urls in report-only mode.
- PASS [expected FAIL] subtest: Navigate a frame via form-submission with javascript:-urls in enforcing mode.

Stable unexpected results (4)

TIMEOUT [expected OK] /fetch/api/abort/general.any.html
- TIMEOUT [expected PASS] subtest: Stream will not error if body is empty. It's closed with an empty queue before it errors.
```
Test timed out
```
- NOTRUN [expected PASS] subtest: Readable stream synchronously cancels with AbortError if aborted before reading
TIMEOUT [expected OK] /fetch/api/abort/general.any.worker.html
- TIMEOUT [expected PASS] subtest: Stream will not error if body is empty. It's closed with an empty queue before it errors.
```
Test timed out
```
- NOTRUN [expected PASS] subtest: Readable stream synchronously cancels with AbortError if aborted before reading
TIMEOUT [expected OK] /fetch/api/response/response-clone.any.html
- PASS [expected FAIL] subtest: Check cloned response's body
- TIMEOUT [expected FAIL] subtest: Cloned responses should provide the same data
```
Test timed out
```
- NOTRUN [expected FAIL] subtest: Cancelling stream should not affect cloned one
- NOTRUN [expected FAIL] subtest: Check response clone use structureClone for teed ReadableStreams (Int8Arraychunk)
- NOTRUN [expected FAIL] subtest: Check response clone use structureClone for teed ReadableStreams (Int16Arraychunk)
- NOTRUN [expected FAIL] subtest: Check response clone use structureClone for teed ReadableStreams (Int32Arraychunk)
- NOTRUN [expected FAIL] subtest: Check response clone use structureClone for teed ReadableStreams (ArrayBufferchunk)
- NOTRUN [expected FAIL] subtest: Check response clone use structureClone for teed ReadableStreams (Uint8Arraychunk)
- NOTRUN [expected FAIL] subtest: Check response clone use structureClone for teed ReadableStreams (Uint8ClampedArraychunk)
- NOTRUN [expected FAIL] subtest: Check response clone use structureClone for teed ReadableStreams (Uint16Arraychunk)
- And 7 more unexpected results...
TIMEOUT [expected OK] /fetch/api/response/response-clone.any.worker.html
- PASS [expected FAIL] subtest: Check cloned response's body
- TIMEOUT [expected FAIL] subtest: Cloned responses should provide the same data
```
Test timed out
```
- NOTRUN [expected FAIL] subtest: Cancelling stream should not affect cloned one
- NOTRUN [expected FAIL] subtest: Check response clone use structureClone for teed ReadableStreams (Int8Arraychunk)
- NOTRUN [expected FAIL] subtest: Check response clone use structureClone for teed ReadableStreams (Int16Arraychunk)
- NOTRUN [expected FAIL] subtest: Check response clone use structureClone for teed ReadableStreams (Int32Arraychunk)
- NOTRUN [expected FAIL] subtest: Check response clone use structureClone for teed ReadableStreams (ArrayBufferchunk)
- NOTRUN [expected FAIL] subtest: Check response clone use structureClone for teed ReadableStreams (Uint8Arraychunk)
- NOTRUN [expected FAIL] subtest: Check response clone use structureClone for teed ReadableStreams (Uint8ClampedArraychunk)
- NOTRUN [expected FAIL] subtest: Check response clone use structureClone for teed ReadableStreams (Uint16Arraychunk)
- And 7 more unexpected results...

github-actions · 2025-11-22T23:19:08Z

⚠️ Try run (#19602321468) failed.

Taym95 · 2025-12-03T13:14:22Z

I will get back to this after #35991 is merged

Implement clone_body_stream_for_dom_body to follow https://fetch.spec.whatwg.org/#concept-body-clone, teeing the ReadableStream and wiring the branched streams back into the original and cloned bodies. Use clone_body_stream_for_dom_body in Request::clone_from and Response::Clone so their body cloning follows the Fetch spec algorithms for request/response cloning, including the shared body stream. Signed-off-by: Taym Haddadi <[email protected]>

github-actions · 2025-12-19T10:54:55Z

🔨 Triggering try run (#20367854479) for Linux (WPT)

github-actions · 2025-12-19T11:34:37Z

Test results for linux-wpt from try job (#20367854479):

Flaky unexpected result (32)

OK /_mozilla/webxr/create_session.https.html
- FAIL [expected PASS] subtest: create_session
```
can't access property "simulateDeviceConnection", navigator.xr.test is undefined
```

OK /_mozilla/webxr/obtain_frame.https.html

FAIL [expected PASS] subtest: obtain_frame

promise_test: Unhandled rejection with value: object "TypeError: can't access property "simulateDeviceConnection", navigator.xr.test is undefined"

ERROR [expected TIMEOUT] /_mozilla/webxr/sessionavailable.https.html
CRASH [expected OK] /_webgl/conformance/textures/misc/tex-image-and-uniform-binding-bugs.html
OK /_webgl/conformance/textures/misc/texture-upload-size.html (#21770)
- PASS [expected FAIL] subtest: WebGL test #45
- PASS [expected FAIL] subtest: WebGL test #47
- PASS [expected FAIL] subtest: WebGL test #49
- PASS [expected FAIL] subtest: WebGL test #51
- FAIL [expected PASS] subtest: WebGL test #53
```
assert_true: Texture was smaller than the expected size 2x2 expected true got false
```
- FAIL [expected PASS] subtest: WebGL test #55
```
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 #57
```
assert_true: Texture was smaller than the expected size 2x2 expected true got false
```
- FAIL [expected PASS] subtest: WebGL test #59
```
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 #61
- PASS [expected FAIL] subtest: WebGL test #63
- And 18 more unexpected results...
ERROR [expected CRASH] /_webgl/conformance2/misc/uninitialized-test-2.html
CRASH [expected ERROR] /_webgl/conformance2/textures/image/tex-3d-rgb565-rgb-unsigned_byte.html
CRASH [expected OK] /_webgl/conformance2/wasm/readpixels-2gb-in-4gb-wasm-memory.html
FAIL [expected PASS] /css/css-backgrounds/border-image-repeat-space-9.html
CRASH [expected OK] /html/browsers/browsing-the-web/back-forward-cache/eligibility/dedicated-worker.html
CRASH [expected OK] /html/browsers/browsing-the-web/back-forward-cache/service-worker-clients-matchall.https.html
CRASH [expected TIMEOUT] /html/browsers/browsing-the-web/history-traversal/pageswap/pageswap-replace-with-cross-origin-redirect.sub.html
CRASH [expected OK] /html/browsers/browsing-the-web/history-traversal/srcdoc/consecutive-srcdoc.html
OK /html/browsers/browsing-the-web/navigating-across-documents/initial-empty-document/iframe-nosrc.html (#34819)
- PASS [expected FAIL] subtest: link click
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-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/history/the-history-interface/traverse_the_history_2.html (#21383)
- PASS [expected FAIL] subtest: Multiple history traversals, last would be aborted
OK /html/browsers/history/the-history-interface/traverse_the_history_4.html (#21383)
- FAIL [expected PASS] subtest: Multiple history traversals, last would be aborted
```
assert_array_equals: Pages opened during history navigation lengths differ, expected array [6, 5] length 2, got [6, 3, 3] length 3
```
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
```
TIMEOUT [expected OK] /html/interaction/focus/the-autofocus-attribute/document-with-fragment-empty.html (#28259)
- TIMEOUT [expected FAIL] subtest: Autofocus elements in top-level browsing context's documents with empty fragments should work.
```
Test timed out
```
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 same-origin iframes.

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 /navigation-timing/test-timing-reload.html
- FAIL [expected PASS] subtest: domComplete is different after the reload.
```
assert_not_equals: domComplete is different after the reload. got disallowed value 5.85
```
FAIL [expected PASS] /png/apng/fcTL-dispose-in-region-previous.html
PASS [expected FAIL] /png/apng/fcTL-dispose-none.html
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
```
CRASH [expected OK] /trusted-types/Element-setAttribute-setAttributeNS-sinks.tentative.html
CRASH [expected OK] /trusted-types/eval-csp-no-tt.html
CRASH [expected TIMEOUT] /wasm/webapi/invalid-code.any.worker.html
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
```
OK /xhr/send-redirect.htm (#32026)
- FAIL [expected PASS] subtest: XMLHttpRequest: send() - Redirects (basics) (307, GET, content.py)
```
assert_equals: expected (string) "GET" but got (object) null
```

Stable unexpected results that are known to be intermittent (36)

TIMEOUT /FileAPI/url/url-in-tags-revoke.window.html (#19978)
- PASS [expected TIMEOUT] subtest: Fetching a blob URL immediately before revoking it works in <script> tags.

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 /_mozilla/mozilla/getBoundingClientRect.html (#39668)
- FAIL [expected PASS] subtest: getBoundingClientRect 1
```
assert_equals: expected 62 but got 60.35
```
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-fonts/generic-family-keywords-001.html (#37467)
- PASS [expected FAIL] subtest: @font-face matching for quoted and unquoted generic(khmer-mul)
- PASS [expected FAIL] subtest: @font-face matching for quoted and unquoted generic(nastaliq)
OK /css/css-fonts/generic-family-keywords-003.html (#38994)
- PASS [expected FAIL] subtest: @font-face matching for quoted and unquoted ui-serif (drawing text in a canvas)
- PASS [expected FAIL] subtest: @font-face matching for quoted and unquoted ui-rounded (drawing text in a canvas)
OK /custom-elements/form-associated/ElementInternals-setFormValue.html (#29174)
- PASS [expected FAIL] subtest: Multiple values - name content attribute is ignored
OK /fetch/metadata/generated/css-font-face.https.sub.tentative.html (#32732)
- FAIL [expected PASS] subtest: sec-fetch-storage-access - Cross-site
```
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)
- PASS [expected FAIL] subtest: sec-fetch-storage-access - Not sent to non-trustworthy same-origin destination
- PASS [expected FAIL] subtest: sec-fetch-storage-access - Not sent to non-trustworthy same-site destination
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] /focus/focus-event-after-switching-iframes.sub.html (#40368)
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/browsing-the-web/navigating-across-documents/initial-empty-document/load-pageshow-events-window-open.html (#28691)
- PASS [expected FAIL] subtest: load event does not fire on window.open('about:blank')
OK /html/browsers/history/the-history-interface/traverse_the_history_5.html (#21383)
- FAIL [expected PASS] subtest: Multiple history traversals, last would be aborted
```
assert_array_equals: Pages opened during history navigation expected property 1 to be 5 but got 3 (expected array [6, 5] got [6, 3])
```

OK /html/browsers/windows/embedded-opener-remove-frame.html (#23867)

FAIL [expected PASS] subtest: opener of discarded auxiliary browsing context

assert_object_equals: property "get" expected function "function opener() {
    [native code]
}" got function "function opener() {
    [native code]
}"

OK [expected TIMEOUT] /html/interaction/focus/the-autofocus-attribute/supported-elements.html (#24145)
- 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
```
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 /html/semantics/embedded-content/media-elements/media_fragment_seek.html (#24114)
- PASS [expected FAIL] subtest: Video should seek to time specified in media fragment syntax

OK /html/semantics/embedded-content/the-iframe-element/iframe-loading-lazy-reload-location-reload.html (#32595)

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

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

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: 0x00 in filename (formdata event)
CRASH [expected TIMEOUT] /html/webappapis/dynamic-markup-insertion/opening-the-input-stream/bailout-exception-vs-return-origin.sub.window.html (#21642)
TIMEOUT [expected CRASH] /html/webappapis/dynamic-markup-insertion/opening-the-input-stream/ignore-opens-during-unload.window.html (#21444)

OK /html/webappapis/user-prompts/print-during-unload.html (#35944)

FAIL [expected PASS] subtest: print() during unload

assert_array_equals: expected property 1 to be "destination" but got "error: window.print is not a function" (expected array ["start", "destination"] got ["start", "error: window.print is not a function"])

CRASH [expected OK] /preload/preload-error.sub.html (#37177)
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!\""
```
TIMEOUT [expected OK] /trusted-types/trusted-types-navigation.html?26-30 (#38807)
- TIMEOUT [expected PASS] subtest: Navigate a window via form-submission with javascript:-urls in report-only mode.
```
Test timed out
```
- NOTRUN [expected PASS] subtest: Navigate a window via form-submission with javascript:-urls w/ default policy in report-only mode.
- NOTRUN [expected PASS] subtest: Navigate a frame via form-submission with javascript:-urls in enforcing mode.
- NOTRUN [expected PASS] subtest: Navigate a frame via form-submission with javascript:-urls w/ default policy in enforcing mode.
OK [expected TIMEOUT] /trusted-types/trusted-types-navigation.html?31-35 (#38034)
- PASS [expected TIMEOUT] subtest: Navigate a frame via form-submission with javascript:-urls w/ default policy in report-only mode.
- FAIL [expected NOTRUN] subtest: Navigate a window via form-submission 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 form-submission 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!\""
```
- FAIL [expected NOTRUN] subtest: Navigate a window via form-submission with javascript:-urls w/ a default policy making the URL invalid in enforcing mode.
```
promise_test: Unhandled rejection with value: "Unexpected message received: \"No securitypolicyviolation reported!\""
```

Stable unexpected results (4)

TIMEOUT [expected OK] /fetch/api/abort/general.any.html
- TIMEOUT [expected PASS] subtest: Stream will not error if body is empty. It's closed with an empty queue before it errors.
```
Test timed out
```
- NOTRUN [expected PASS] subtest: Readable stream synchronously cancels with AbortError if aborted before reading
TIMEOUT [expected OK] /fetch/api/abort/general.any.worker.html
- TIMEOUT [expected PASS] subtest: Stream will not error if body is empty. It's closed with an empty queue before it errors.
```
Test timed out
```
- NOTRUN [expected PASS] subtest: Readable stream synchronously cancels with AbortError if aborted before reading
TIMEOUT [expected OK] /fetch/api/response/response-clone.any.html
- PASS [expected FAIL] subtest: Check cloned response's body
- TIMEOUT [expected FAIL] subtest: Cloned responses should provide the same data
```
Test timed out
```
- NOTRUN [expected FAIL] subtest: Cancelling stream should not affect cloned one
- NOTRUN [expected FAIL] subtest: Check response clone use structureClone for teed ReadableStreams (Int8Arraychunk)
- NOTRUN [expected FAIL] subtest: Check response clone use structureClone for teed ReadableStreams (Int16Arraychunk)
- NOTRUN [expected FAIL] subtest: Check response clone use structureClone for teed ReadableStreams (Int32Arraychunk)
- NOTRUN [expected FAIL] subtest: Check response clone use structureClone for teed ReadableStreams (ArrayBufferchunk)
- NOTRUN [expected FAIL] subtest: Check response clone use structureClone for teed ReadableStreams (Uint8Arraychunk)
- NOTRUN [expected FAIL] subtest: Check response clone use structureClone for teed ReadableStreams (Uint8ClampedArraychunk)
- NOTRUN [expected FAIL] subtest: Check response clone use structureClone for teed ReadableStreams (Uint16Arraychunk)
- And 7 more unexpected results...
TIMEOUT [expected OK] /fetch/api/response/response-clone.any.worker.html
- PASS [expected FAIL] subtest: Check cloned response's body
- TIMEOUT [expected FAIL] subtest: Cloned responses should provide the same data
```
Test timed out
```
- NOTRUN [expected FAIL] subtest: Cancelling stream should not affect cloned one
- NOTRUN [expected FAIL] subtest: Check response clone use structureClone for teed ReadableStreams (Int8Arraychunk)
- NOTRUN [expected FAIL] subtest: Check response clone use structureClone for teed ReadableStreams (Int16Arraychunk)
- NOTRUN [expected FAIL] subtest: Check response clone use structureClone for teed ReadableStreams (Int32Arraychunk)
- NOTRUN [expected FAIL] subtest: Check response clone use structureClone for teed ReadableStreams (ArrayBufferchunk)
- NOTRUN [expected FAIL] subtest: Check response clone use structureClone for teed ReadableStreams (Uint8Arraychunk)
- NOTRUN [expected FAIL] subtest: Check response clone use structureClone for teed ReadableStreams (Uint8ClampedArraychunk)
- NOTRUN [expected FAIL] subtest: Check response clone use structureClone for teed ReadableStreams (Uint16Arraychunk)
- And 7 more unexpected results...

github-actions · 2025-12-19T11:34:48Z

⚠️ Try run (#20367854479) failed.

Signed-off-by: Taym Haddadi <[email protected]>

github-actions · 2025-12-19T14:10:09Z

🔨 Triggering try run (#20372488913) for Linux (WPT)

components/script/dom/response.rs

github-actions · 2025-12-19T14:41:33Z

Test results for linux-wpt from try job (#20372488913):

Flaky unexpected result (26)

OK /_mozilla/webxr/create_session.https.html
- FAIL [expected PASS] subtest: create_session
```
can't access property "simulateDeviceConnection", navigator.xr.test is undefined
```

OK /_mozilla/webxr/obtain_frame.https.html

FAIL [expected PASS] subtest: obtain_frame

promise_test: Unhandled rejection with value: object "TypeError: can't access property "simulateDeviceConnection", navigator.xr.test is undefined"

CRASH [expected OK] /_webgl/conformance/textures/misc/format-filterable-renderable.html
OK /_webgl/conformance/textures/misc/texture-upload-size.html (#21770)
- PASS [expected FAIL] subtest: WebGL test #45
- PASS [expected FAIL] subtest: WebGL test #47
- PASS [expected FAIL] subtest: WebGL test #49
- PASS [expected FAIL] subtest: WebGL test #51
- FAIL [expected PASS] subtest: WebGL test #53
```
assert_true: Texture was smaller than the expected size 2x2 expected true got false
```
- FAIL [expected PASS] subtest: WebGL test #55
```
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 #57
```
assert_true: Texture was smaller than the expected size 2x2 expected true got false
```
- FAIL [expected PASS] subtest: WebGL test #59
```
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 #61
- PASS [expected FAIL] subtest: WebGL test #63
- And 6 more unexpected results...
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-fonts/generic-family-keywords-001.html (#37467)
- PASS [expected FAIL] subtest: @font-face matching for quoted and unquoted generic(fangsong)
- PASS [expected FAIL] subtest: @font-face matching for quoted and unquoted generic(khmer-mul)

OK /css/css-fonts/variations/font-weight-matching.html (#38577)

FAIL [expected PASS] subtest: Test @font-face matching for weight 250

assert_approx_equals: @font-face should be mapped to CSSTest Weights 800. expected 90 +/- 2 but got 180

FAIL [expected PASS] subtest: Test @font-face matching for weight 399

assert_approx_equals: @font-face should be mapped to CSSTest Weights 800. expected 90 +/- 2 but got 180

FAIL [expected PASS] subtest: Test @font-face matching for weight 400

assert_approx_equals: @font-face should be mapped to CSSTest Weights 700. expected 90 +/- 2 but got 180

OK /html/browsers/browsing-the-web/navigating-across-documents/replace-before-load/a-click.html (#28697)

FAIL [expected PASS] subtest: aElement.click() before the load event must NOT replace

assert_equals: expected "http://web-platform.test:8000/common/blank.html?thereplacement" but got "http://web-platform.test:8000/html/browsers/browsing-the-web/navigating-across-documents/replace-before-load/resources/code-injector.html?pipe=sub(none)&amp;code=%0A%20%20%20%20const%20a%20%3D%20document.createElement(%22a%22)%3B%0A%20%20%20%20a.href%20%3D%20%22%2Fcommon%2Fblank.html%3Fthereplacement%22%3B%0A%20%20%20%20document.currentScript.before(a)%3B%0A%20%20%20%20a.click()%3B%0A%20%20"

CRASH [expected OK] /html/browsers/sandboxing/sandbox-initial-empty-document-toward-same-origin.html (#35948)
TIMEOUT [expected OK] /html/interaction/focus/the-autofocus-attribute/document-with-fragment-nonexistent.html (#28259)
- TIMEOUT [expected FAIL] subtest: Autofocus elements in top-level browsing context's documents with non-existent fragments should work.
```
Test timed out
```
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 same-origin iframes.
OK /html/semantics/embedded-content/media-elements/media_fragment_seek.html (#24114)
- PASS [expected FAIL] subtest: Video should seek to time specified in media fragment syntax
OK /html/semantics/embedded-content/media-elements/playing-the-media-resource/loop-from-ended.tentative.html (#33778)
- FAIL [expected PASS] subtest: play() with loop set to true after playback ended
```
this argument is not a finite floating-point value
```

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/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 /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
```
PASS [expected FAIL] /png/apng/acTL-plays-one.html (#41218)
FAIL [expected PASS] /png/apng/fcTL-blend-source-nearly-transparent.html (#40915)
TIMEOUT /resource-timing/test_resource_timing.https.html (#25216)
- PASS [expected FAIL] subtest: PerformanceEntry has correct name, initiatorType, startTime, and duration (img)
TIMEOUT [expected OK] /shadow-dom/untriaged/events/event-dispatch/test-002.html
CRASH [expected OK] /trusted-types/eval-csp-no-tt.html
CRASH [expected TIMEOUT] /wasm/webapi/invalid-code.any.worker.html
CRASH [expected OK] /webxr/xrSession_sameObject.https.html
ERROR [expected OK] /workers/baseurl/alpha/sharedworker-in-worker.html (#21315)

Stable unexpected results that are known to be intermittent (40)

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)
TIMEOUT [expected OK] /credential-management/credentialscontainer-frame-basics.https.html (#39430)
- TIMEOUT [expected FAIL] subtest: navigator.credentials should be undefined in documents generated from data: URLs.
```
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
- PASS [expected FAIL] subtest: @font-face override update with appended sheet 2
OK /css/css-fonts/generic-family-keywords-003.html (#38994)
- PASS [expected FAIL] subtest: @font-face matching for quoted and unquoted ui-monospace (drawing text in a canvas)
OK /fetch/metadata/generated/css-font-face.https.sub.tentative.html (#32732)
- FAIL [expected PASS] subtest: sec-fetch-storage-access - Cross-site
```
promise_test: Unhandled rejection with value: object "Error: Failed to query for recorded headers."
```
ERROR [expected OK] /focus/focus-event-after-switching-iframes.sub.html (#40368)
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/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)
- PASS [expected FAIL] subtest: load event does not fire on window.open('about:blank')

OK /html/browsers/browsing-the-web/navigating-across-documents/refresh/same-document-refresh.html (#34597)

FAIL [expected PASS] subtest: Same-Document Referrer from Refresh

assert_equals: original page loads expected "http://web-platform.test:8000/html/browsers/browsing-the-web/navigating-across-documents/refresh/resources/refresh-with-section.sub.html?url=%23section" but got "http://web-platform.test:8000/html/browsers/browsing-the-web/navigating-across-documents/refresh/resources/refresh-with-section.sub.html?url=%23section#section"

OK /html/browsers/history/the-history-interface/traverse_the_history_4.html (#21383)
- FAIL [expected PASS] subtest: Multiple history traversals, last would be aborted
```
assert_array_equals: Pages opened during history navigation expected property 1 to be 5 but got 3 (expected array [6, 5] got [6, 3])
```
OK /html/browsers/history/the-history-interface/traverse_the_history_5.html (#21383)
- FAIL [expected PASS] subtest: Multiple history traversals, last would be aborted
```
assert_array_equals: Pages opened during history navigation expected property 1 to be 5 but got 3 (expected array [6, 5] got [6, 3])
```
OK [expected TIMEOUT] /html/interaction/focus/the-autofocus-attribute/supported-elements.html (#24145)
- 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 [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
```
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)
- PASS [expected TIMEOUT] subtest: Feature-Policy header: autoplay "none" has no effect on the top level document.
OK /html/semantics/forms/form-submission-0/multipart-formdata.window.html (#28725)
- PASS [expected FAIL] subtest: multipart/form-data: 0x00 in name (normal form)
- PASS [expected FAIL] subtest: multipart/form-data: 0x00 in value (formdata event)
- PASS [expected FAIL] subtest: multipart/form-data: single quote in name (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)
- PASS [expected FAIL] subtest: text/plain: non-ASCII in name and value (normal form)
OK /html/semantics/forms/form-submission-0/urlencoded2.window.html (#28687)
- FAIL [expected PASS] subtest: application/x-www-form-urlencoded: Basic File test (normal form)
```
assert_equals: expected "basic=file-test.txt" but got ""
```
- PASS [expected FAIL] subtest: application/x-www-form-urlencoded: Basic File test (formdata event)
- PASS [expected FAIL] subtest: application/x-www-form-urlencoded: 0x00 in value (formdata event)
- PASS [expected FAIL] subtest: application/x-www-form-urlencoded: single quote in name (normal form)
CRASH [expected TIMEOUT] /html/webappapis/dynamic-markup-insertion/opening-the-input-stream/bailout-exception-vs-return-origin.sub.window.html (#21642)
TIMEOUT [expected CRASH] /html/webappapis/dynamic-markup-insertion/opening-the-input-stream/ignore-opens-during-unload.window.html (#21444)

OK /html/webappapis/user-prompts/print-during-unload.html (#35944)

FAIL [expected PASS] subtest: print() during unload

assert_array_equals: expected property 1 to be "destination" but got "error: window.print is not a function" (expected array ["start", "destination"] got ["start", "error: window.print is not a function"])

OK /navigation-timing/test-navigation-type-reload.html (#33334)
- FAIL [expected PASS] subtest: Reload domContentLoadedEventEnd > Original domContentLoadedEventEnd
```
assert_true: Reload domContentLoadedEventEnd &gt; Original domContentLoadedEventEnd expected true got false
```
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.
TIMEOUT [expected OK] /trusted-types/trusted-types-navigation.html?26-30 (#38807)
- TIMEOUT [expected PASS] subtest: Navigate a window via form-submission with javascript:-urls in report-only mode.
```
Test timed out
```
- NOTRUN [expected PASS] subtest: Navigate a window via form-submission with javascript:-urls w/ default policy in report-only mode.
- NOTRUN [expected PASS] subtest: Navigate a frame via form-submission with javascript:-urls in enforcing mode.
- NOTRUN [expected PASS] subtest: Navigate a frame via form-submission with javascript:-urls w/ default policy 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 · 2025-12-19T14:41:40Z

✨ Try run (#20372488913) succeeded.

Signed-off-by: Taym Haddadi <[email protected]>

Taym95 requested a review from gterzian as a code owner November 22, 2025 22:48

servo-highfive added the S-awaiting-review There is new code that needs to be reviewed. label Nov 22, 2025

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Taym95 mentioned this pull request Nov 23, 2025

https://chatgpt.com is broken #39786

Open

Taym95 mentioned this pull request Dec 3, 2025

Script Implement ReadableByteStreamTee #35991

Merged

3 tasks

Taym95 mentioned this pull request Dec 17, 2025

Response.clone() does not properly clone the underlying streams #36503

Closed

Taym95 force-pushed the fetch-body-clone-readablestream-tee branch from c7cbfee to 5161632 Compare December 19, 2025 10:54

Taym95 added the T-linux-wpt Do a try run of the WPT label Dec 19, 2025

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Fix clone

e53966a

Signed-off-by: Taym Haddadi <[email protected]>

Taym95 added the T-linux-wpt Do a try run of the WPT label Dec 19, 2025

github-actions bot removed the T-linux-wpt Do a try run of the WPT label Dec 19, 2025

Taym95 requested a review from jdm December 19, 2025 14:12

TimvdLippe approved these changes Dec 19, 2025

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servo-highfive removed the S-awaiting-review There is new code that needs to be reviewed. label Dec 19, 2025

Update test expectations

174d05c

Signed-off-by: Taym Haddadi <[email protected]>

Taym95 force-pushed the fetch-body-clone-readablestream-tee branch from 64f9ea6 to 174d05c Compare December 19, 2025 16:36

servo-highfive added the S-awaiting-review There is new code that needs to be reviewed. label Dec 19, 2025

Taym95 enabled auto-merge December 19, 2025 16:36

Taym95 added this pull request to the merge queue Dec 19, 2025

servo-highfive added the S-awaiting-merge The PR is in the process of compiling and running tests on the automated CI. label Dec 19, 2025

Merged via the queue into servo:main with commit a926260 Dec 19, 2025
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Taym95 deleted the fetch-body-clone-readablestream-tee branch December 19, 2025 18:19

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Clone request/response bodies per Fetch spec concept-body-clone#40825

Clone request/response bodies per Fetch spec concept-body-clone#40825
Taym95 merged 3 commits intoservo:mainfrom
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