Bug 288757 – REGRESSION(289984@main?): [ macOS wk1 ] imported/w3c/web-platform-tests/fullscreen/rendering/fullscreen-css-invalidation.html is a flaky failure.

• Component: Layout and Rendering
• Status: NEW

[Yasmin Karimi]

imported/w3c/web-platform-tests/fullscreen/rendering/fullscreen-css-invalidation.html 

This test is a flaky failure on macOS Sonoma wk1 and macOS Sequoia wk1 Release.

HISTORY:

https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Ffullscreen%2Frendering%2Ffullscreen-css-invalidation.html

TEXT DIFF:

@@ -1,4 +1,5 @@
-Should be green
-
-PASS Invalidate :fullscreen based style
-
+layer at (0,0) size 800x600
+  RenderView at (0,0) size 800x600
+layer at (0,0) size 800x600
+  RenderBlock {HTML} at (0,0) size 800x600
+    RenderBody {BODY} at (8,8) size 784x584

DIFF URL:

https://build.webkit.org/results/Apple-Sonoma-Release-AppleSilicon-WK1-Tests/291242@main%20(8310)/imported/w3c/web-platform-tests/fullscreen/rendering/fullscreen-css-invalidation-pretty-diff.html

REPRODUCIBILITY:

Reproduction of this on MacOS Sequoia 15.3.1 (24D70 / arm64) at ToT, resulted in a crashes with the following command:

run-webkit-tests imported/w3c/web-platform-tests/fullscreen/rendering/fullscreen-css-invalidation.html --iterations 5 -1

REGRSSION:

According to the results dashboard and contextual information, the probable regression point is 289984@main. The code paths changed in this commit appear to be related to the observed regression test failure.

[Radar WebKit Bug Importer]

<rdar://problem/145787313>

[EWS]

Test gardening commit 291266@main (b8f477c0040f): <https://commits.webkit.org/291266@main>

Reviewed commits have been landed. Closing PR #41562 and removing active labels.