script: Set relatedTarget for {mouse, pointer}x{enter, leave, out, over} events by simonwuelker · Pull Request #42989 · servo/servo

simonwuelker · 2026-03-03T12:55:48Z

Testing: New tests start to pass. Most related tests still fail because we dispatch mouse and pointer events in the wrong order.

…ut events Signed-off-by: Simon Wülker <[email protected]>

Signed-off-by: Simon Wülker <[email protected]>

github-actions · 2026-03-03T13:06:52Z

🔨 Triggering try run (#22624348546) for Linux (WPT)

github-actions · 2026-03-03T13:40:36Z

Test results for linux-wpt from try job (#22624348546):

Flaky unexpected result (29)

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 [expected TIMEOUT] /IndexedDB/idbfactory_open.any.worker.html
- PASS [expected FAIL] subtest: Calling open() with version argument 1.5 should not throw.
- PASS [expected TIMEOUT] subtest: Calling open() with version argument 9007199254740991 should not throw.
- PASS [expected TIMEOUT] subtest: Calling open() with version argument undefined should not throw.

OK /IndexedDB/idbtransaction-oncomplete.any.html (#42845)

FAIL [expected PASS] subtest: IDBTransaction - complete event

assert_array_equals: lengths differ, expected array ["upgradeneeded", "complete", "success", "opencursor"] length 4, got ["upgradeneeded", "complete", "success"] length 3

CRASH [expected OK] /_webgl/conformance/attribs/gl-bindAttribLocation-matrix.html

ERROR [expected CRASH] /_webgl/conformance2/textures/misc/tex-3d-size-limit.html (#42881)

PASS [expected FAIL] subtest: WebGL test #1

FAIL [expected PASS] subtest: WebGL test #3

assert_true: getError expected: INVALID_VALUE. Was NO_ERROR : texImage3D should fail for dimension out of range. expected true got false

FAIL [expected PASS] subtest: WebGL test #4

assert_true: getError expected: INVALID_VALUE. Was NO_ERROR : texImage3D should fail for dimension out of range. expected true got false

FAIL [expected PASS] subtest: WebGL test #5

assert_true: getError expected: INVALID_VALUE. Was NO_ERROR : texImage3D should fail for dimension out of range. expected true got false

FAIL [expected PASS] subtest: WebGL test #6

assert_true: getError expected: INVALID_VALUE. Was NO_ERROR : texImage3D should fail for dimension out of range. expected true got false

FAIL [expected PASS] subtest: WebGL test #7

assert_true: getError expected: INVALID_VALUE. Was NO_ERROR : texImage3D should fail for dimension out of range. expected true got false

FAIL [expected PASS] subtest: WebGL test #8

assert_true: getError expected: INVALID_VALUE. Was NO_ERROR : texImage3D should fail for dimension out of range. expected true got false

FAIL [expected PASS] subtest: WebGL test #9

assert_true: getError expected: INVALID_VALUE. Was NO_ERROR : texImage3D should fail for dimension out of range. expected true got false

FAIL [expected PASS] subtest: WebGL test #10

assert_true: getError expected: INVALID_VALUE. Was NO_ERROR : texImage3D should fail for dimension out of range. expected true got false

FAIL [expected PASS] subtest: WebGL test #11

assert_true: getError expected: INVALID_VALUE. Was NO_ERROR : texImage3D should fail for dimension out of range. expected true got false

And 27 more unexpected results...

FAIL [expected PASS] /css/css-backgrounds/background-size-041.html
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
FAIL [expected PASS] /css/css-ui/webkit-appearance-meter-001.html
OK /fetch/content-length/api-and-duplicate-headers.any.worker.html (#35197)
- 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)"
```
ERROR [expected OK] /fetch/fetch-later/quota/same-origin-iframe/accumulated-oversized-payload.https.window.html (#41705)
OK [expected ERROR] /fetch/fetch-later/quota/same-origin-iframe/sandboxed-iframe.https.window.html (#41704)
OK [expected ERROR] /focus/focus-event-after-switching-iframes.sub.html (#40368)
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/navigation-unload-same-origin-fragment.html (#20768)
- FAIL [expected PASS] subtest: Tests that a fragment navigation in the unload handler will not block the initial navigation
```
assert_equals: expected "" but got "#fragment"
```
CRASH [expected OK] /html/browsers/browsing-the-web/read-media/cross-origin-video.html
CRASH [expected OK] /html/browsers/the-window-object/window-open-noopener.html?_top

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
```
TIMEOUT [expected OK] /html/user-activation/navigation-state-reset-sameorigin.html
- TIMEOUT [expected PASS] subtest: Post-navigation state reset.
```
Test timed out
```
OK /html/webappapis/user-prompts/print-during-unload.html (#35944)
- PASS [expected FAIL] subtest: print() during unload
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
```
PASS [expected FAIL] /png/apng/fcTL-dispose-none.html (#41817)
OK /resource-timing/test_resource_timing.html (#25720)
- PASS [expected FAIL] subtest: PerformanceEntry has correct name, initiatorType, startTime, and duration (iframe)
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 [expected TIMEOUT] /trusted-types/trusted-types-navigation.html?26-30 (#38807)
- PASS [expected TIMEOUT] subtest: Navigate a window via form-submission with javascript:-urls in report-only mode.
- PASS [expected NOTRUN] subtest: Navigate a window via form-submission with javascript:-urls w/ default policy in report-only mode.
- PASS [expected NOTRUN] subtest: Navigate a frame via form-submission with javascript:-urls in enforcing mode.
- PASS [expected NOTRUN] subtest: Navigate a frame via form-submission with javascript:-urls w/ default policy in enforcing mode.

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[14922] |0.0069163283333182335 - -0.6770334243774414| = 0.6839497527107596 &gt; 0.0038986 expected -0.6770334243774414 +/- 0.0038986 but got 0.0069163283333182335

OK /webdriver/tests/classic/dismiss_alert/dismiss.py (#39098)
- FAIL [expected PASS] subtest: test_dismiss_in_popup_window
```
AssertionError: no such alert (404): No user prompt is currently active.
```
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
```
CRASH [expected OK] /workers/WorkerGlobalScope_importScripts.htm

Stable unexpected results that are known to be intermittent (22)

OK /FileAPI/url/url-with-fetch.any.worker.html (#21517)
- FAIL [expected PASS] subtest: Revoke blob URL after calling fetch, fetch should succeed
```
promise_test: Unhandled rejection with value: object "TypeError: Network error: Blob URL store error: InvalidFileID"
```

OK /_mozilla/css/offset_properties_inline.html (#40543)

FAIL [expected PASS] subtest: offsetTop

assert_equals: offsetTop of #inline-1 should be 0. expected 0 but got -1

FAIL [expected PASS] subtest: offsetLeft

assert_equals: offsetLeft of #inline-2 should be 40. expected 40 but got 25

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 /beacon/beacon-basic.https.window.html (#41723)
- PASS [expected FAIL] subtest: Payload size restriction should be accumulated: type = string
OK /content-security-policy/frame-ancestors/frame-ancestors-path-ignored.window.html (#36468)
- PASS [expected FAIL] subtest: A 'frame-ancestors' CSP directive with a URL that includes a path should be ignored.
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 generic(nastaliq) (drawing text in a canvas)
```
assert_equals: quoted generic(nastaliq) 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 /fetch/metadata/generated/css-font-face.https.sub.tentative.html (#32732)
- PASS [expected FAIL] subtest: sec-fetch-storage-access - Cross-site
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 cross-site destination
OK [expected ERROR] /fetch/metadata/window-open.https.sub.html (#40339)
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/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
OK /html/browsers/history/the-history-interface/traverse_the_history_4.html (#21383)
- PASS [expected FAIL] subtest: Multiple history traversals, last would be aborted

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

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"

TIMEOUT /html/semantics/embedded-content/media-elements/autoplay-disabled-by-feature-policy.https.sub.html (#41221)
- FAIL [expected TIMEOUT] subtest: Feature-Policy header: autoplay "none" disallows same-origin iframes.
```
assert_false: autoplay expected false got true
```
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/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 /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
```
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
OK [expected TIMEOUT] /trusted-types/trusted-types-navigation.html?01-05 (#38975)
- PASS [expected TIMEOUT] subtest: Navigate a window via anchor with javascript:-urls in report-only mode.
- PASS [expected NOTRUN] subtest: Navigate a window via anchor with javascript:-urls w/ default policy in report-only mode.
- PASS [expected NOTRUN] subtest: Navigate a frame via anchor with javascript:-urls in enforcing mode.
OK [expected TIMEOUT] /trusted-types/trusted-types-navigation.html?31-35 (#38034)
- PASS [expected NOTRUN] 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!\""
```

github-actions · 2026-03-03T13:40:46Z

✨ Try run (#22624348546) succeeded.

mrobinson

Nice.

…ver} events (servo#42989) Testing: New tests start to pass. Most related tests still fail because we dispatch mouse and pointer events in the wrong order. --------- Signed-off-by: Simon Wülker <[email protected]>

simonwuelker requested a review from gterzian as a code owner March 3, 2026 12:55

servo-highfive added the S-awaiting-review There is new code that needs to be reviewed. label Mar 3, 2026

simonwuelker force-pushed the pointer-events-relatedtarget branch from 9183854 to 1b6c41f Compare March 3, 2026 13:01

simonwuelker changed the title ~~script: Set relatedTarget for pointerover/mouseover/pointerout/mouseout events~~ script: Set relatedTarget for {mouse, pointer}x{enter, leave, out, over} Mar 3, 2026

simonwuelker added 2 commits March 3, 2026 14:06

script: Set relatedTarget for pointerover/mouseover/pointerout/mouseo…

872d62e

…ut events Signed-off-by: Simon Wülker <[email protected]>

Update WPT expectations

8b26455

Signed-off-by: Simon Wülker <[email protected]>

simonwuelker force-pushed the pointer-events-relatedtarget branch from 1b6c41f to 8b26455 Compare March 3, 2026 13:06

simonwuelker added the T-linux-wpt Do a try run of the WPT label Mar 3, 2026

github-actions Bot removed the T-linux-wpt Do a try run of the WPT label Mar 3, 2026

simonwuelker changed the title ~~script: Set relatedTarget for {mouse, pointer}x{enter, leave, out, over}~~ script: Set relatedTarget for {mouse, pointer}x{enter, leave, out, over} events Mar 3, 2026

mrobinson approved these changes Mar 3, 2026

View reviewed changes

servo-highfive removed the S-awaiting-review There is new code that needs to be reviewed. label Mar 3, 2026

mrobinson added this pull request to the merge queue Mar 3, 2026

servo-highfive added the S-awaiting-merge The PR is in the process of compiling and running tests on the automated CI. label Mar 3, 2026

Merged via the queue into servo:main with commit 036cb9a Mar 3, 2026
71 checks passed

servo-highfive removed the S-awaiting-merge The PR is in the process of compiling and running tests on the automated CI. label Mar 3, 2026

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script: Set relatedTarget for {mouse, pointer}x{enter, leave, out, over} events#42989
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