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<!DOCTYPE bugzilla SYSTEM "https://bugs.webkit.org/page.cgi?id=bugzilla.dtd">

<bugzilla version="5.0.4.1"
          urlbase="https://bugs.webkit.org/"
          
          maintainer="admin@webkit.org"
>

    <bug>
          <bug_id>311145</bug_id>
          
          <creation_ts>2026-03-30 16:45:59 -0700</creation_ts>
          <short_desc>REGRESSION(309729@main): TestWebKitAPI.ObscuredContentInsets.TopOverhangColorExtensionLayer* is flakily failing</short_desc>
          <delta_ts>2026-03-31 16:29:47 -0700</delta_ts>
          <reporter_accessible>1</reporter_accessible>
          <cclist_accessible>1</cclist_accessible>
          <classification_id>1</classification_id>
          <classification>Unclassified</classification>
          <product>WebKit</product>
          <component>New Bugs</component>
          <version>WebKit Nightly Build</version>
          <rep_platform>Unspecified</rep_platform>
          <op_sys>Unspecified</op_sys>
          <bug_status>NEW</bug_status>
          <resolution></resolution>
          
          
          <bug_file_loc></bug_file_loc>
          <status_whiteboard></status_whiteboard>
          <keywords>InRadar</keywords>
          <priority>P2</priority>
          <bug_severity>Normal</bug_severity>
          <target_milestone>---</target_milestone>
          
          <blocked>310392</blocked>
          <everconfirmed>1</everconfirmed>
          <reporter name="Jonathan Bedard">jbedard</reporter>
          <assigned_to name="Jonathan Bedard">jbedard</assigned_to>
          <cc>webkit-bug-importer</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>2195340</commentid>
    <comment_count>0</comment_count>
    <who name="Jonathan Bedard">jbedard</who>
    <bug_when>2026-03-30 16:45:59 -0700</bug_when>
    <thetext>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&amp;suite=api-tests&amp;test=TestWebKitAPI.ObscuredContentInsets.TopOverhangColorExtensionLayerRemovedQuicklyAfterNavigatingToPageWithoutFixedHeader&amp;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:@&quot;top overhang&quot;]
16:31:38.164 37759           Actual: false
16:31:38.164 37759         Expected: true</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>2195341</commentid>
    <comment_count>1</comment_count>
    <who name="Radar WebKit Bug Importer">webkit-bug-importer</who>
    <bug_when>2026-03-30 16:46:15 -0700</bug_when>
    <thetext>&lt;rdar://problem/173732239&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>2195345</commentid>
    <comment_count>2</comment_count>
    <who name="Jonathan Bedard">jbedard</who>
    <bug_when>2026-03-30 16:50:37 -0700</bug_when>
    <thetext>See also: rdar://173028532</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>2195346</commentid>
    <comment_count>3</comment_count>
    <who name="Jonathan Bedard">jbedard</who>
    <bug_when>2026-03-30 16:51:10 -0700</bug_when>
    <thetext>See also: rdar://173028532</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>2195348</commentid>
    <comment_count>4</comment_count>
    <who name="Jonathan Bedard">jbedard</who>
    <bug_when>2026-03-30 16:56:02 -0700</bug_when>
    <thetext>I haven&apos;t been able to get a local reproduction, although I&apos;ve been trying with Debug builds and it appears to be Release builds which are most likely to hit this.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>2195735</commentid>
    <comment_count>5</comment_count>
    <who name="Jonathan Bedard">jbedard</who>
    <bug_when>2026-03-31 16:29:47 -0700</bug_when>
    <thetext>Pull request: https://github.com/WebKit/WebKit/pull/61802</thetext>
  </long_desc>
      
      

    </bug>

</bugzilla>