Bug 308084

Summary: REGRESSION(306349@main): [iOS Release] imported/w3c/web-platform-tests/css/filter-effects/backdrop-filter-boundary.html is failing with image diff
Product: WebKit Reporter: Marta Darbinyan <darbinyan>
Component: New BugsAssignee: alan <zalan>
Status: RESOLVED FIXED    
Severity: Normal CC: webkit-bot-watchers-bugzilla, webkit-bug-importer, zalan
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
Attachments:
Description Flags
Patch
none
[fast-cq]Patch none

Marta Darbinyan
Reported 2026-02-17 15:18:18 PST
The following test is consistent failure on iOS Release with image diff within a range of 306349@main. The test is also flaky in EWS test runs. imported/w3c/web-platform-tests/css/filter-effects/backdrop-filter-boundary.html Image Diff: https://ews-build.s3-us-west-2.amazonaws.com/iOS-26-Simulator-WPT-WK2-Tests-EWS/8f354d9b-13225/imported/w3c/web-platform-tests/css/filter-effects/backdrop-filter-boundary-diff.png Tets result: https://ews-build.webkit.org/#/builders/154/builds/13225 Test history: https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fcss%2Ffilter-effects%2Fbackdrop-filter-boundary.html&style=release&version_name=iOS%2026
Attachments
Patch (2.37 KB, patch)
2026-02-25 14:07 PST, alan 		no flags
DetailsFormatted DiffDiff
[fast-cq]Patch (2.37 KB, patch)
2026-02-25 14:07 PST, alan 		no flags
DetailsFormatted DiffDiff
Show Obsolete (1) View All Add attachment proposed patch, testcase, etc.
Radar WebKit Bug Importer
Comment 1 2026-02-17 15:18:35 PST
<rdar://problem/170587849>
EWS
Comment 2 2026-02-17 16:10:31 PST
Test gardening commit 307733@main (04d734e5a4f9): <https://commits.webkit.org/307733@main> Reviewed commits have been landed. Closing PR #58884 and removing active labels.
alan
Comment 3 2026-02-25 14:07:13 PST
Created attachment 478479 [details] Patch
alan
Comment 4 2026-02-25 14:07:39 PST
Created attachment 478480 [details] [fast-cq]Patch
EWS
Comment 5 2026-02-26 05:11:31 PST
Committed 308278@main (7a9e8eb58ede): <https://commits.webkit.org/308278@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 478480 [details].
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