<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<!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>280234</bug_id>
          
          <creation_ts>2024-09-23 16:26:25 -0700</creation_ts>
          <short_desc>[macOS iOS ] imported/w3c/web-platform-tests/html/dom/idlharness.https.html?exclude=(Document|Window|HTML.*) is a flaky timeout failure (EWS failure)</short_desc>
          <delta_ts>2025-09-30 11:12:31 -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>RESOLVED</bug_status>
          <resolution>FIXED</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>
          
          
          <everconfirmed>1</everconfirmed>
          <reporter name="Marta Darbinyan">darbinyan</reporter>
          <assigned_to name="Nobody">webkit-unassigned</assigned_to>
          <cc>webkit-bot-watchers-bugzilla</cc>
    
    <cc>webkit-bug-importer</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>2062538</commentid>
    <comment_count>0</comment_count>
    <who name="Marta Darbinyan">darbinyan</who>
    <bug_when>2024-09-23 16:26:25 -0700</bug_when>
    <thetext>The following test is a flaky failure timeout on macOS and iOS Debug on main and appear as a false positive in Sonoma EWS queue. The test has ben flaky 

imported/w3c/web-platform-tests/html/dom/idlharness.https.html?exclude=(Document|Window|HTML.*)


Diff:
 PASS MediaError interface: constant MEDIA_ERR_SRC_NOT_SUPPORTED on interface prototype object
 PASS MediaError interface: attribute code
 PASS MediaError interface: attribute message
-PASS MediaError must be primary interface of errorVideo.error
-PASS Stringification of errorVideo.error
-PASS MediaError interface: errorVideo.error must inherit property &quot;MEDIA_ERR_ABORTED&quot; with the proper type
-PASS MediaError interface: errorVideo.error must inherit property &quot;MEDIA_ERR_NETWORK&quot; with the proper type
-PASS MediaError interface: errorVideo.error must inherit property &quot;MEDIA_ERR_DECODE&quot; with the proper type
-PASS MediaError interface: errorVideo.error must inherit property &quot;MEDIA_ERR_SRC_NOT_SUPPORTED&quot; with the proper type
-PASS MediaError interface: errorVideo.error must inherit property &quot;code&quot; with the proper type
-PASS MediaError interface: errorVideo.error must inherit property &quot;message&quot; with the proper type
+FAIL Stringification of errorVideo.error assert_class_string: class string of errorVideo.error expected &quot;[object MediaError]&quot; but got &quot;[object Null]&quot;
+FAIL MediaError interface: errorVideo.error must inherit property &quot;MEDIA_ERR_ABORTED&quot; with the proper type assert_inherits: provided value is not an object
+FAIL MediaError interface: errorVideo.error must inherit property &quot;MEDIA_ERR_NETWORK&quot; with the proper type assert_inherits: provided value is not an object
+FAIL MediaError interface: errorVideo.error must inherit property &quot;MEDIA_ERR_DECODE&quot; with the proper type assert_inherits: provided value is not an object
+FAIL MediaError interface: errorVideo.error must inherit property &quot;MEDIA_ERR_SRC_NOT_SUPPORTED&quot; with the proper type assert_inherits: provided value is not an object
+FAIL MediaError interface: errorVideo.error must inherit property &quot;code&quot; with the proper type assert_inherits: provided value is not an object
+FAIL MediaError interface: errorVideo.error must inherit property &quot;message&quot; with the proper type assert_inherits: provided value is not an object
 PASS AudioTrackList interface: existence and properties of interface object
 PASS AudioTrackList interface object length
 PASS AudioTrackList interface object name

Test results: https://build.webkit.org/results/Apple-Sonoma-Debug-WK2-Tests/284084@main%20(2443)/results.html

History:
https://results.webkit.org/?suite=layout-tests&amp;test=imported%2Fw3c%2Fweb-platform-tests%2Fhtml%2Fdom%2Fidlharness.https.html%3Fexclude%3D(Document%7CWindow%7CHTML.*)&amp;style=debug</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>2062539</commentid>
    <comment_count>1</comment_count>
    <who name="Radar WebKit Bug Importer">webkit-bug-importer</who>
    <bug_when>2024-09-23 16:26:46 -0700</bug_when>
    <thetext>&lt;rdar://problem/136538640&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>2143811</commentid>
    <comment_count>2</comment_count>
    <who name="EWS">ews-feeder</who>
    <bug_when>2025-09-17 16:59:53 -0700</bug_when>
    <thetext>Committed 300123@main (746599afeaf8): &lt;https://commits.webkit.org/300123@main&gt;

Reviewed commits have been landed. Closing PR #50899 and removing active labels.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>2144084</commentid>
    <comment_count>3</comment_count>
    <who name="EWS">ews-feeder</who>
    <bug_when>2025-09-18 12:58:34 -0700</bug_when>
    <thetext>Test gardening commit 300179@main (c518edb0ec59): &lt;https://commits.webkit.org/300179@main&gt;

Reviewed commits have been landed. Closing PR #50948 and removing active labels.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>2147208</commentid>
    <comment_count>4</comment_count>
    <who name="EWS">ews-feeder</who>
    <bug_when>2025-09-30 11:12:31 -0700</bug_when>
    <thetext>Test gardening commit 300762@main (3ec2a5703695): &lt;https://commits.webkit.org/300762@main&gt;

Reviewed commits have been landed. Closing PR #51571 and removing active labels.</thetext>
  </long_desc>
      
      

    </bug>

</bugzilla>