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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>247884</bug_id>
          
          <creation_ts>2022-11-14 02:31:21 -0800</creation_ts>
          <short_desc>[css-transitions] setting transition-property to &quot;none&quot; does not disassociate CSS Transition from owning element</short_desc>
          <delta_ts>2022-11-14 12:27:21 -0800</delta_ts>
          <reporter_accessible>1</reporter_accessible>
          <cclist_accessible>1</cclist_accessible>
          <classification_id>1</classification_id>
          <classification>Unclassified</classification>
          <product>WebKit</product>
          <component>Animations</component>
          <version>Safari Technology Preview</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, WebExposed, WPTImpact</keywords>
          <priority>P2</priority>
          <bug_severity>Normal</bug_severity>
          <target_milestone>---</target_milestone>
          
          <blocked>237331</blocked>
          <everconfirmed>1</everconfirmed>
          <reporter name="Antoine Quint">graouts</reporter>
          <assigned_to name="Antoine Quint">graouts</assigned_to>
          <cc>dino</cc>
    
    <cc>graouts</cc>
    
    <cc>koivisto</cc>
    
    <cc>webkit-bug-importer</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>1912248</commentid>
    <comment_count>0</comment_count>
    <who name="Antoine Quint">graouts</who>
    <bug_when>2022-11-14 02:31:21 -0800</bug_when>
    <thetext>We are failing a subtest in web-animations/timing-model/timelines/update-and-send-events-replacement.html:

promise_test(async t =&gt; {
  // Setup transition
  const div = createDiv(t);
  div.style.opacity = &apos;0&apos;;
  div.style.transition = &apos;opacity 1ms&apos;;
  getComputedStyle(div).opacity;
  div.style.opacity = &apos;1&apos;;
  const cssTransition = div.getAnimations()[0];
  cssTransition.effect.updateTiming({ fill: &apos;forwards&apos; });

  // Break tie to markup
  div.style.transitionProperty = &apos;none&apos;;
  assert_equals(cssTransition.playState, &apos;idle&apos;);

  // Restart transition
  cssTransition.play();

  const scriptAnimation = div.animate(
    { opacity: 1 },
    {
      duration: 1,
      fill: &apos;forwards&apos;,
    }
  );
  await scriptAnimation.finished;

  assert_equals(cssTransition.replaceState, &apos;removed&apos;);
  assert_equals(scriptAnimation.replaceState, &apos;active&apos;);
}, &apos;Removes a CSS transition no longer tied to markup&apos;);

We fail the second-to-last assertion because we do not correctly disassociate a CSS Transition from its owning element when transition-property is set to &quot;none&quot; and thus do not mark that transition as replaceable.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1912253</commentid>
    <comment_count>1</comment_count>
    <who name="Antoine Quint">graouts</who>
    <bug_when>2022-11-14 02:43:47 -0800</bug_when>
    <thetext>Pull request: https://github.com/WebKit/WebKit/pull/6465</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1912397</commentid>
    <comment_count>2</comment_count>
    <who name="EWS">ews-feeder</who>
    <bug_when>2022-11-14 12:26:22 -0800</bug_when>
    <thetext>Committed 256666@main (7821448df0f4): &lt;https://commits.webkit.org/256666@main&gt;

Reviewed commits have been landed. Closing PR #6465 and removing active labels.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1912398</commentid>
    <comment_count>3</comment_count>
    <who name="Radar WebKit Bug Importer">webkit-bug-importer</who>
    <bug_when>2022-11-14 12:27:21 -0800</bug_when>
    <thetext>&lt;rdar://problem/102333068&gt;</thetext>
  </long_desc>
      
      

    </bug>

</bugzilla>