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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>294812</bug_id>
          
          <creation_ts>2025-06-22 10:32:16 -0700</creation_ts>
          <short_desc>[view-transitions] Add `animation-delay: inherit` to UA stylesheet</short_desc>
          <delta_ts>2025-06-23 03:16:03 -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>CSS</component>
          <version>Safari Technology Preview</version>
          <rep_platform>Unspecified</rep_platform>
          <op_sys>Unspecified</op_sys>
          <bug_status>RESOLVED</bug_status>
          <resolution>FIXED</resolution>
          
          <see_also>https://github.com/web-platform-tests/wpt/pull/53316</see_also>
          <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="Ahmad Saleem">ahmad.saleem792</reporter>
          <assigned_to name="Tim Nguyen (:ntim)">ntim</assigned_to>
          <cc>koivisto</cc>
    
    <cc>mattwoodrow</cc>
    
    <cc>ntim</cc>
    
    <cc>webkit-bug-importer</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>2125087</commentid>
    <comment_count>0</comment_count>
    <who name="Ahmad Saleem">ahmad.saleem792</who>
    <bug_when>2025-06-22 10:32:16 -0700</bug_when>
    <thetext>Hi Team,

While just looking across our UA, I noticed that we are missing this bit:

:root::view-transition-image-pair(*) {
  animation-delay: inherit;
}

:root::view-transition-old(*),
:root::view-transition-new(*) {
  animation-delay: inherit;
}

I tried to find, if there is any WPT to see, if it progresses or not but couldn&apos;t manage to find. So I am just raising so we can track and if needed, add it.

CCing - Tim &amp; Matt.

Thanks!</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>2125088</commentid>
    <comment_count>1</comment_count>
    <who name="Ahmad Saleem">ahmad.saleem792</who>
    <bug_when>2025-06-22 10:33:23 -0700</bug_when>
    <thetext>Web Specification - https://drafts.csswg.org/css-view-transitions/#ua-styles</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>2125090</commentid>
    <comment_count>2</comment_count>
    <who name="Tim Nguyen (:ntim)">ntim</who>
    <bug_when>2025-06-22 10:52:26 -0700</bug_when>
    <thetext>It was added afterwards which is why it was missed: https://github.com/w3c/csswg-drafts/commit/d1156bc0223b7eafb34167ae9cd0c8e72d6ea9d1</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>2125091</commentid>
    <comment_count>3</comment_count>
    <who name="Tim Nguyen (:ntim)">ntim</who>
    <bug_when>2025-06-22 11:07:40 -0700</bug_when>
    <thetext>You can probably just expand this WPT: https://searchfox.org/wubkat/source/LayoutTests/imported/w3c/web-platform-tests/css/css-view-transitions/style-inheritance.html (see how it&apos;s done for animation-duration).

Or wait for Chromium to do it in https://github.com/w3c/csswg-drafts/issues/9817 and import the WPT coverage</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>2125161</commentid>
    <comment_count>4</comment_count>
    <who name="Radar WebKit Bug Importer">webkit-bug-importer</who>
    <bug_when>2025-06-23 01:06:08 -0700</bug_when>
    <thetext>&lt;rdar://problem/154071965&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>2125162</commentid>
    <comment_count>5</comment_count>
    <who name="Tim Nguyen (:ntim)">ntim</who>
    <bug_when>2025-06-23 01:07:16 -0700</bug_when>
    <thetext>Pull request: https://github.com/WebKit/WebKit/pull/47049</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>2125163</commentid>
    <comment_count>6</comment_count>
    <who name="Tim Nguyen (:ntim)">ntim</who>
    <bug_when>2025-06-23 01:09:08 -0700</bug_when>
    <thetext>Submitted web-platform-tests pull request: https://github.com/web-platform-tests/wpt/pull/53316</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>2125175</commentid>
    <comment_count>7</comment_count>
    <who name="EWS">ews-feeder</who>
    <bug_when>2025-06-23 03:16:01 -0700</bug_when>
    <thetext>Committed 296501@main (af260479bf09): &lt;https://commits.webkit.org/296501@main&gt;

Reviewed commits have been landed. Closing PR #47049 and removing active labels.</thetext>
  </long_desc>
      
      

    </bug>

</bugzilla>