Bug 311145

Summary: REGRESSION(309729@main): TestWebKitAPI.ObscuredContentInsets.TopOverhangColorExtensionLayer* is flakily failing
Product: WebKit Reporter: Jonathan Bedard <jbedard>
Component: New BugsAssignee: Jonathan Bedard <jbedard>
Status: NEW    
Severity: Normal CC: webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
Bug Depends on:    
Bug Blocks: 310392    

Jonathan Bedard
Reported 2026-03-30 16:45:59 PDT
TestWebKitAPI.ObscuredContentInsets.TopOverhangColorExtensionLayerRemovedQuicklyAfterNavigatingToPageWithoutFixedHeader and TestWebKitAPI.ObscuredContentInsets.TopOverhangColorExtensionLayerAppearsImmediatelyAfterReload are flakily failing since they were added in 309729@main. History: https://results.webkit.org/?suite=api-tests&suite=api-tests&test=TestWebKitAPI.ObscuredContentInsets.TopOverhangColorExtensionLayerRemovedQuicklyAfterNavigatingToPageWithoutFixedHeader&test=TestWebKitAPI.ObscuredContentInsets.TopOverhangColorExtensionLayerAppearsImmediatelyAfterReload CI link: https://build.webkit.org/#/builders/1716/builds/2868 Logs: 16:31:38.164 37759 TestWebKitAPI.ObscuredContentInsets.TopOverhangColorExtensionLayerAppearsImmediatelyAfterReload 16:31:38.164 37759 16:31:38.164 37759 /Volumes/Data/worker/Apple-Tahoe-Release-Build/build/Tools/TestWebKitAPI/Tests/WebKitCocoa/ObscuredContentInsets.mm:451 16:31:38.164 37759 Value of: layerBeforeReload.get() 16:31:38.164 37759 Actual: false 16:31:38.164 37759 Expected: true 16:31:38.164 37759 16:31:38.164 37759 16:31:38.164 37759 16:31:38.164 37759 File name unavailable 16:31:38.164 37759 Unknown C++ exception thrown in the test body. 16:31:38.164 37759 16:31:38.164 37759 TestWebKitAPI.ObscuredContentInsets.TopOverhangColorExtensionLayerRemovedQuicklyAfterNavigatingToPageWithoutFixedHeader 16:31:38.164 37759 16:31:38.164 37759 /Volumes/Data/worker/Apple-Tahoe-Release-Build/build/Tools/TestWebKitAPI/Tests/WebKitCocoa/ObscuredContentInsets.mm:490 16:31:38.164 37759 Value of: [webView firstLayerWithNameContaining:@"top overhang"] 16:31:38.164 37759 Actual: false 16:31:38.164 37759 Expected: true
Attachments
Radar WebKit Bug Importer
Comment 1 2026-03-30 16:46:15 PDT
Jonathan Bedard
Comment 2 2026-03-30 16:50:37 PDT
Jonathan Bedard
Comment 3 2026-03-30 16:51:10 PDT
Jonathan Bedard
Comment 4 2026-03-30 16:56:02 PDT
I haven't been able to get a local reproduction, although I've been trying with Debug builds and it appears to be Release builds which are most likely to hit this.
Jonathan Bedard
Comment 5 2026-03-31 16:29:47 PDT
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