<?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>311582</bug_id>
          
          <creation_ts>2026-04-06 12:24:01 -0700</creation_ts>
          <short_desc>AX: If the buildIsolatedTreeTimer fires when the main-thread tree is only a scroll area + web area, the isolated tree can permanently be empty</short_desc>
          <delta_ts>2026-04-09 21:21:50 -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>Accessibility</component>
          <version>Other</version>
          <rep_platform>All</rep_platform>
          <op_sys>All</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="Tyler Wilcock">tyler_w</reporter>
          <assigned_to name="Tyler Wilcock">tyler_w</assigned_to>
          <cc>andresg_22</cc>
    
    <cc>webkit-bug-importer</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>2197330</commentid>
    <comment_count>0</comment_count>
    <who name="Tyler Wilcock">tyler_w</who>
    <bug_when>2026-04-06 12:24:01 -0700</bug_when>
    <thetext>...</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>2197332</commentid>
    <comment_count>1</comment_count>
    <who name="Radar WebKit Bug Importer">webkit-bug-importer</who>
    <bug_when>2026-04-06 12:24:07 -0700</bug_when>
    <thetext>&lt;rdar://problem/174179484&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>2197344</commentid>
    <comment_count>2</comment_count>
    <who name="Tyler Wilcock">tyler_w</who>
    <bug_when>2026-04-06 12:45:32 -0700</bug_when>
    <thetext>Pull request: https://github.com/WebKit/WebKit/pull/62139</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>2197650</commentid>
    <comment_count>3</comment_count>
    <who name="EWS">ews-feeder</who>
    <bug_when>2026-04-07 08:55:24 -0700</bug_when>
    <thetext>Committed 310712@main (d21fe886bee2): &lt;https://commits.webkit.org/310712@main&gt;

Reviewed commits have been landed. Closing PR #62139 and removing active labels.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>2198674</commentid>
    <comment_count>4</comment_count>
    <who name="EWS">ews-feeder</who>
    <bug_when>2026-04-09 21:21:50 -0700</bug_when>
    <thetext>Committed 305413.638@safari-7624-branch (031776f4f3ce): &lt;https://commits.webkit.org/305413.638@safari-7624-branch&gt;

Reviewed commits have been landed. Closing PR #4903 and removing active labels.</thetext>
  </long_desc>
      
      

    </bug>

</bugzilla>