<?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>236730</bug_id>
          
          <creation_ts>2022-02-16 12:46:35 -0800</creation_ts>
          <short_desc>Remove non-standard display:block UA stylesheet rule for &lt;layer&gt;</short_desc>
          <delta_ts>2022-03-05 13:25:26 -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>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>
          
          
          <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="Simon Pieters (:zcorpan)">zcorpan</reporter>
          <assigned_to name="alan">zalan</assigned_to>
          <cc>esprehn+autocc</cc>
    
    <cc>ews-watchlist</cc>
    
    <cc>glenn</cc>
    
    <cc>gyuyoung.kim</cc>
    
    <cc>hi</cc>
    
    <cc>koivisto</cc>
    
    <cc>macpherson</cc>
    
    <cc>menard</cc>
    
    <cc>pangle</cc>
    
    <cc>webkit-bug-importer</cc>
    
    <cc>zalan</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>1842460</commentid>
    <comment_count>0</comment_count>
    <who name="Simon Pieters (:zcorpan)">zcorpan</who>
    <bug_when>2022-02-16 12:46:35 -0800</bug_when>
    <thetext>What steps will reproduce the problem?
(1) Open data:text/html,a&lt;layer&gt;b
(2)
(3)

What is the expected result?
&quot;ab&quot; should be on one line (because &lt;layer&gt; should be display:inline)

What happens instead?
&quot;a&quot; and &quot;b&quot; are on separate lines (because the UA stylesheet has layer { display:block })

https://github.com/WebKit/WebKit/blob/main/Source/WebCore/css/html.css#L53-L55

This is in violation with the HTML standard which doesn&apos;t say &lt;layer&gt; should have any UA style: https://html.spec.whatwg.org/multipage/rendering.html#rendering

Chromium also has this bug (https://bugs.chromium.org/p/chromium/issues/detail?id=1298197 ), but not Gecko.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1845272</commentid>
    <comment_count>1</comment_count>
    <who name="Radar WebKit Bug Importer">webkit-bug-importer</who>
    <bug_when>2022-02-23 12:47:15 -0800</bug_when>
    <thetext>&lt;rdar://problem/89372670&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1848522</commentid>
    <comment_count>2</comment_count>
      <attachid>453909</attachid>
    <who name="alan">zalan</who>
    <bug_when>2022-03-05 06:14:04 -0800</bug_when>
    <thetext>Created attachment 453909
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1848529</commentid>
    <comment_count>3</comment_count>
      <attachid>453911</attachid>
    <who name="alan">zalan</who>
    <bug_when>2022-03-05 08:34:32 -0800</bug_when>
    <thetext>Created attachment 453911
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1848558</commentid>
    <comment_count>4</comment_count>
    <who name="EWS">ews-feeder</who>
    <bug_when>2022-03-05 13:25:22 -0800</bug_when>
    <thetext>Committed r290870 (248101@main): &lt;https://commits.webkit.org/248101@main&gt;

All reviewed patches have been landed. Closing bug and clearing flags on attachment 453911.</thetext>
  </long_desc>
      
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            <date>2022-03-05 06:14:04 -0800</date>
            <delta_ts>2022-03-05 08:34:28 -0800</delta_ts>
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            <filename>bug-236730-20220305061403.patch</filename>
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            <date>2022-03-05 08:34:32 -0800</date>
            <delta_ts>2022-03-05 13:25:24 -0800</delta_ts>
            <desc>Patch</desc>
            <filename>bug-236730-20220305083431.patch</filename>
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            <attacher name="alan">zalan</attacher>
            
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