layout: Handle block-in-inline dependency on block constraints by Loirooriol · Pull Request #41624 · servo/servo

Loirooriol · 2026-01-02T07:50:43Z

When a block-level that depends on block constraints is inside an inline formatting context, then the entire layout of the IFC needs to be marked as depending on block constraints too.

Testing: Adding new test
Fixes: #41623

github-actions · 2026-01-02T07:50:59Z

🔨 Triggering try run (#20653499790) for Linux (WPT)

servo-wpt-sync · 2026-01-02T07:53:54Z

🤖 Opened new upstream WPT pull request (web-platform-tests/wpt#56956) with upstreamable changes.

github-actions · 2026-01-02T08:20:27Z

Test results for linux-wpt from try job (#20653499790):

Flaky unexpected result (38)

OK /FileAPI/url/url-with-fetch.any.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 occurred"
```
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/image-decoder-to-texture.html
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)
- 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 /custom-elements/form-associated/ElementInternals-setFormValue.html (#29174)
- PASS [expected FAIL] subtest: Single value - Non-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 occurred"
```
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/navigation-unload-same-origin.window.html (#29049)
- PASS [expected FAIL] subtest: Same-origin navigation started from unload handler must be ignored
CRASH [expected OK] /html/browsers/history/the-history-interface/004.html
OK /html/browsers/history/the-history-interface/traverse_the_history_5.html (#21383)
- PASS [expected FAIL] subtest: Multiple history traversals, last would be aborted
TIMEOUT [expected OK] /html/semantics/embedded-content/media-elements/audio_loop_base.html (#41122)
- NOTRUN [expected PASS] subtest: Check if audio.loop is set to true that expecting the seeking event is fired more than once
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-form-submit.html (#32607)

FAIL [expected PASS] subtest: Navigating iframe loading='lazy' before it is loaded: form submit

uncaught exception: Error: assert_equals: expected "http://web-platform.test:8000/html/semantics/embedded-content/the-iframe-element/support/blank.htm?" 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 ""
```
- PASS [expected FAIL] subtest: multipart/form-data: 0x00 in name (normal form)
- PASS [expected FAIL] subtest: multipart/form-data: 0x00 in value (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: 0x00 in name (normal form)
- 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 ""
```
- PASS [expected FAIL] subtest: application/x-www-form-urlencoded: 0x00 in value (formdata event)
- PASS [expected FAIL] subtest: application/x-www-form-urlencoded: non-ASCII in filename (normal form)
- PASS [expected FAIL] subtest: application/x-www-form-urlencoded: characters not in encoding in name and value (normal form)
OK /navigation-timing/test-navigation-type-reload.html (#33334)
- PASS [expected FAIL] subtest: Reload domContentLoadedEventEnd > Original domContentLoadedEventEnd
- PASS [expected FAIL] subtest: Reload domContentLoadedEventStart > Original domContentLoadedEventStart
- PASS [expected FAIL] subtest: Reload fetchStart > Original fetchStart
FAIL [expected PASS] /png/apng/fcTL-dispose-in-region-previous.html (#41410)
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
```
ERROR [expected OK] /resource-timing/cors-preflight.any.html (#28694)
CRASH [expected OK] /trusted-types/Node-multiple-arguments.html
CRASH [expected OK] /trusted-types/block-string-assignment-to-DOMParser-parseFromString.html
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.
- TIMEOUT [expected NOTRUN] subtest: Navigate a frame via form-submission with javascript:-urls w/ default policy in enforcing mode.
```
Test timed out
```
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.html
CRASH [expected OK] /visual-viewport/page-and-offset-in-iframe.html
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 /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/get_element_attribute/user_prompts.py
- FAIL [expected PASS] subtest: test_accept[alert-None]
```
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
OK [expected ERROR] /webxr/render_state_update.https.html (#27535)
CRASH [expected ERROR] /workers/Worker-constructor-proto.any.serviceworker.html

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

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 occurred"
```

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
```
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 /content-security-policy/frame-ancestors/frame-ancestors-path-ignored.window.html (#36468)
- FAIL [expected PASS] subtest: A 'frame-ancestors' CSP directive with a URL that includes a path should be ignored.
```
assert_unreached: The IFrame should have been blocked (or cross-origin). It wasn't. Reached unreachable code
```
OK /css/css-fonts/generic-family-keywords-003.html (#38994)
- PASS [expected FAIL] subtest: @font-face matching for quoted and unquoted cursive (drawing text in a canvas)
- PASS [expected FAIL] subtest: @font-face matching for quoted and unquoted system-ui (drawing text in a canvas)
- PASS [expected FAIL] subtest: @font-face matching for quoted and unquoted generic(nastaliq) (drawing text in a canvas)
- PASS [expected FAIL] subtest: @font-face matching for quoted and unquoted ui-sans-serif (drawing text in a canvas)
- PASS [expected FAIL] subtest: @font-face matching for quoted and unquoted ui-monospace (drawing text in a canvas)
- PASS [expected FAIL] subtest: @font-face matching for quoted and unquoted ui-rounded (drawing text in a canvas)
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-user
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
ERROR [expected OK] /focus/focus-event-after-switching-iframes.sub.html (#40368)
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"
```
TIMEOUT /html/interaction/focus/the-autofocus-attribute/supported-elements.html (#24145)
- PASS [expected TIMEOUT] subtest: Non-HTMLElement should not support autofocus
- TIMEOUT [expected NOTRUN] subtest: Host element with delegatesFocus should support autofocus
```
Test timed out
```
TIMEOUT /html/semantics/embedded-content/media-elements/autoplay-default-feature-policy.https.sub.html (#41193)
- PASS [expected TIMEOUT] subtest: Default "autoplay" feature policy ["self"] allows same-origin iframes.
OK /html/semantics/embedded-content/the-iframe-element/iframe-loading-lazy-nav-location-assign.html (#32863)
- PASS [expected FAIL] subtest: Navigating iframe loading='lazy' before it is loaded: location.assign
OK /html/semantics/scripting-1/the-script-element/module/dynamic-import/blob-url.any.html (#33948)
- PASS [expected FAIL] subtest: Revoking a blob URL immediately after calling import will not fail
OK /html/webappapis/user-prompts/print-during-unload.html (#35944)
- PASS [expected FAIL] subtest: print() during unload

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

FAIL [expected PASS] subtest: 404 (fetch): main

assert_greater_than: http://web-platform.test:8000/preload/resources/dummy.xml?pipe=status%28404%29&amp;label=fetch should be loaded expected a number greater than 0 but got 0

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=0e7977ec-9f55-44f3-a475-cec992e8ce35 expected 1 but got 0
```
ERROR [expected OK] /workers/baseurl/alpha/sharedworker-in-worker.html (#21315)

github-actions · 2026-01-02T08:20:42Z

✨ Try run (#20653499790) succeeded.

Loirooriol · 2026-01-02T12:57:12Z

It's easier to fix this after #41632

github-actions · 2026-01-02T12:57:31Z

🔨 Triggering try run (#20658343294) for Linux (WPT)

servo-wpt-sync · 2026-01-02T12:58:57Z

📝 Transplanted new upstreamable changes to existing upstream WPT pull request (web-platform-tests/wpt#56956).

servo-wpt-sync · 2026-01-02T12:59:41Z

✍ Updated existing upstream WPT pull request (web-platform-tests/wpt#56956) title and body.

github-actions · 2026-01-02T13:26:28Z

Test results for linux-wpt from try job (#20658343294):

Flaky unexpected result (33)

OK /_mozilla/mozilla/getBoundingClientRect.html (#39668)
- FAIL [expected PASS] subtest: getBoundingClientRect 1
```
assert_equals: expected 62 but got 60.35
```

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"

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...
CRASH [expected OK] /_webgl/conformance2/wasm/readpixels-2gb-in-4gb-wasm-memory.html

OK /css/CSS2/linebox/inline-negative-margin-001.html

FAIL [expected PASS] subtest: [data-expected-height] 3

assert_equals: 
&lt;div class="w4" data-expected-height="10"&gt;123 &lt;span style="margin-left: -4ch"&gt;1234 &lt;/span&gt;&lt;/div&gt;
height expected 10 but got 20

FAIL [expected PASS] subtest: [data-expected-height] 4

assert_equals: 
&lt;div class="w4" data-expected-height="10"&gt;123 &lt;span style="margin-left: -4ch"&gt;123 &lt;/span&gt;&lt;/div&gt;
height expected 10 but got 20

FAIL [expected PASS] subtest: [data-expected-height] 5

assert_equals: 
&lt;div class="w4" data-expected-height="10"&gt;&lt;img class="w4"&gt;&lt;span style="margin-left: -4ch"&gt;123&lt;/span&gt;&lt;/div&gt;
height expected 10 but got 20

FAIL [expected PASS] subtest: [data-expected-height] 6

assert_equals: 
&lt;div class="w4" data-expected-height="10"&gt;&lt;img class="w5"&gt;&lt;span style="margin-left: -5ch"&gt;123&lt;/span&gt;&lt;/div&gt;
height expected 10 but got 20

FAIL [expected PASS] subtest: [data-expected-height] 10

assert_equals: 
&lt;div class="w4" data-expected-height="10"&gt;&lt;img class="w5"&gt;&lt;img class="w1" style="margin-left: -2ch"&gt;&lt;/div&gt;
height expected 10 but got 20

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-monospace (drawing text in a canvas)
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
ERROR /fetch/metadata/generated/serviceworker.https.sub.html (#36247)
- PASS [expected FAIL] subtest: sec-fetch-site - Same origin, no options - registration
CRASH [expected OK] /html/browsers/browsing-the-web/back-forward-cache/service-worker-controlled-after-restore.https.html
CRASH [expected OK] /html/browsers/browsing-the-web/history-traversal/persisted-user-state-restoration/scroll-restoration-navigation-cross-origin.html
CRASH [expected OK] /html/browsers/browsing-the-web/navigating-across-documents/005.html (#27062)
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"
```

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"

CRASH [expected OK] /html/browsers/windows/browsing-context-names/choose-_parent-004.html
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/forms/form-submission-0/multipart-formdata.window.html (#28725)
- PASS [expected FAIL] subtest: multipart/form-data: 0x00 in name (normal form)
OK /html/semantics/forms/form-submission-0/text-plain.window.html (#28687)
- PASS [expected FAIL] subtest: text/plain: \r\n in name (formdata event)
- PASS [expected FAIL] subtest: text/plain: double quote in filename (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: \r\n in name (normal form)
- PASS [expected FAIL] subtest: application/x-www-form-urlencoded: \r\n in value (formdata event)
- PASS [expected FAIL] subtest: application/x-www-form-urlencoded: double quote in value (formdata event)
- PASS [expected FAIL] subtest: application/x-www-form-urlencoded: backslash in filename (formdata event)
CRASH [expected OK] /html/webappapis/timers/cleartimeout-clearinterval.any.worker.html

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

FAIL [expected PASS] subtest: 404 (fetch): main

assert_greater_than: http://web-platform.test:8000/preload/resources/dummy.xml?pipe=status%28404%29&amp;label=fetch should be loaded expected a number greater than 0 but got 0

OK /preload/preload-invalid-resources.html (#39091)
- PASS [expected FAIL] subtest: Preloading an invalid image (missing) should preload and not re-fetch
TIMEOUT [expected OK] /referrer-policy/css-integration/svg/internal-stylesheet.html
- TIMEOUT [expected FAIL] subtest: Styling SVG from internal styles filter
```
Test timed out
```
- NOTRUN [expected FAIL] subtest: Styling SVG from internal styles clip-path
- NOTRUN [expected FAIL] subtest: Styling SVG from internal styles marker-start
- NOTRUN [expected FAIL] subtest: Styling SVG from internal styles marker-mid
- NOTRUN [expected FAIL] subtest: Styling SVG from internal styles marker-end
- NOTRUN [expected FAIL] subtest: Styling SVG from internal styles mask
- NOTRUN [expected FAIL] subtest: Styling SVG from internal styles mask-image
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/Node-multiple-arguments.html
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.
TIMEOUT /trusted-types/trusted-types-navigation.html?06-10 (#37920)
- PASS [expected FAIL] subtest: Navigate a frame via anchor with javascript:-urls in report-only mode.
CRASH [expected OK] /wasm/webapi/esm-integration/wasm-to-wasm-link-error.tentative.html
CRASH [expected ERROR] /wasm/webapi/invalid-code.any.sharedworker.html
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 /webdriver/tests/classic/element_click/navigate.py

ERROR [expected PASS] subtest: test_numbers_link

setup error: webdriver.error.NoSuchWindowException: no such window (404)

ERROR [expected PASS] subtest: test_multi_line_link

setup error: ConnectionRefusedError: [Errno 111] Connection refused

ERROR [expected PASS] subtest: test_navigation_retains_input_state

setup error: ConnectionRefusedError: [Errno 111] Connection refused

ERROR [expected PASS] subtest: test_link_hash

setup error: ConnectionRefusedError: [Errno 111] Connection refused

ERROR [expected PASS] subtest: test_link_from_toplevel_context_with_target[]
```
setup error: ConnectionRefusedError: [Errno 111] Connection refused
```
ERROR [expected PASS] subtest: test_link_from_toplevel_context_with_target[_blank]
```
setup error: ConnectionRefusedError: [Errno 111] Connection refused
```
ERROR [expected FAIL] subtest: test_link_from_nested_context_with_target[_self]
```
teardown error: ConnectionRefusedError: [Errno 111] Connection refused
```
ERROR [expected FAIL] subtest: test_link_from_nested_context_with_target[_top]
```
setup error: ConnectionRefusedError: [Errno 111] Connection refused
```

ERROR [expected PASS] subtest: test_link_cross_origin

setup error: ConnectionRefusedError: [Errno 111] Connection refused

ERROR [expected FAIL] subtest: test_link_closes_window

setup error: ConnectionRefusedError: [Errno 111] Connection refused

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 [expected ERROR] /webxr/render_state_update.https.html (#27535)
ERROR [expected OK] /workers/baseurl/alpha/sharedworker-in-worker.html (#21315)

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

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 occurred"
```

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
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
```
ERROR [expected OK] /fetch/fetch-later/quota/same-origin-iframe/multiple-iframes.https.window.html (#35176)
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."
```
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
- PASS [expected FAIL] subtest: sec-fetch-storage-access - Not sent to non-trustworthy cross-site destination
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/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"

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-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 /html/semantics/embedded-content/the-iframe-element/iframe-loading-lazy-nav-location-assign.html (#32863)
- PASS [expected FAIL] subtest: Navigating iframe loading='lazy' before it is loaded: location.assign
OK /html/semantics/scripting-1/the-script-element/module/dynamic-import/blob-url.any.html (#33948)
- PASS [expected FAIL] subtest: Revoking a blob URL immediately after calling import will not fail
OK /navigation-timing/test-navigation-type-reload.html (#33334)
- PASS [expected FAIL] subtest: Reload domComplete > Original domComplete
- 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
FAIL [expected PASS] /png/apng/acTL-plays-one.html (#41218)
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.

github-actions · 2026-01-02T13:26:36Z

✨ Try run (#20658343294) succeeded.

When a block-level that depends on block constraints is inside an inline formatting context, then the entire layout of the IFC needs to be marked as depending on block constraints too. Signed-off-by: Oriol Brufau <[email protected]>

servo-wpt-sync · 2026-01-02T17:49:32Z

📝 Transplanted new upstreamable changes to existing upstream WPT pull request (web-platform-tests/wpt#56956).

servo-wpt-sync · 2026-01-02T17:50:17Z

✍ Updated existing upstream WPT pull request (web-platform-tests/wpt#56956) title and body.

Loirooriol requested a review from mrobinson as a code owner January 2, 2026 07:50

Loirooriol added A-layout/inline A-layout/flex T-linux-wpt Do a try run of the WPT labels Jan 2, 2026

servo-highfive added the S-awaiting-review There is new code that needs to be reviewed. label Jan 2, 2026

github-actions bot removed the T-linux-wpt Do a try run of the WPT label Jan 2, 2026

servo-wpt-sync mentioned this pull request Jan 2, 2026

layout: Handle block-in-inline dependency on block constraints web-platform-tests/wpt#56956

Merged

Loirooriol force-pushed the ib-split-depends_on_block_constraints branch from 945dba7 to e792c32 Compare January 2, 2026 12:56

Loirooriol added the T-linux-wpt Do a try run of the WPT label Jan 2, 2026

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Intrinsic size of blocks inside inline should propagate depends_on_block_constraints #41630

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mrobinson approved these changes Jan 2, 2026

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servo-highfive removed the S-awaiting-review There is new code that needs to be reviewed. label Jan 2, 2026

Loirooriol force-pushed the ib-split-depends_on_block_constraints branch from e792c32 to 0687d98 Compare January 2, 2026 17:39

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Merged via the queue into servo:main with commit 147d565 Jan 2, 2026
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Loirooriol deleted the ib-split-depends_on_block_constraints branch January 2, 2026 18:27

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Loirooriol commented Jan 2, 2026 •

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