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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>154907</bug_id>
          
          <creation_ts>2016-03-01 21:45:31 -0800</creation_ts>
          <short_desc>Implement custom elements API</short_desc>
          <delta_ts>2026-03-30 06:02:14 -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>DOM</component>
          <version>WebKit Nightly Build</version>
          <rep_platform>Unspecified</rep_platform>
          <op_sys>Unspecified</op_sys>
          <bug_status>NEW</bug_status>
          <resolution></resolution>
          
          <see_also>https://bugs.webkit.org/show_bug.cgi?id=148695</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>
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          <everconfirmed>1</everconfirmed>
          <reporter name="Ryosuke Niwa">rniwa</reporter>
          <assigned_to name="Ryosuke Niwa">rniwa</assigned_to>
          <cc>alex</cc>
    
    <cc>dvpdiner2</cc>
    
    <cc>emilio</cc>
    
    <cc>eric.carlson</cc>
    
    <cc>fred.wang</cc>
    
    <cc>gyuyoung.kim</cc>
    
    <cc>jmalonzo</cc>
    
    <cc>kojii</cc>
    
    <cc>lzsoft.cja</cc>
    
    <cc>philip</cc>
    
    <cc>rob</cc>
    
    <cc>wilsonpage</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>1169727</commentid>
    <comment_count>0</comment_count>
    <who name="Ryosuke Niwa">rniwa</who>
    <bug_when>2016-03-01 21:45:31 -0800</bug_when>
    <thetext>Implement custom elements API:
https://www.w3.org/TR/custom-elements/

based on the consensus we&apos;ve reached during Jan F2F:
https://rawgit.com/w3c/webcomponents/construction/spec/custom/index.html</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1169729</commentid>
    <comment_count>1</comment_count>
    <who name="Ryosuke Niwa">rniwa</who>
    <bug_when>2016-03-01 21:46:21 -0800</bug_when>
    <thetext>&lt;rdar://problem/19467099&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1447077</commentid>
    <comment_count>2</comment_count>
    <who name="Ryosuke Niwa">rniwa</who>
    <bug_when>2018-08-01 17:54:12 -0700</bug_when>
    <thetext>*** Bug 187907 has been marked as a duplicate of this bug. ***</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1638969</commentid>
    <comment_count>3</comment_count>
    <who name="Philip Jägenstedt">philip</who>
    <bug_when>2020-04-08 01:30:59 -0700</bug_when>
    <thetext>I came across the tests for custom built-in elements in WPT:
https://wpt.fyi/results/custom-elements/builtin-coverage.html?run_id=478440003&amp;run_id=484130003&amp;run_id=461580002

This bug is about the custom elements API overall, is there a bug about built-in elements specifically?</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1639412</commentid>
    <comment_count>4</comment_count>
    <who name="Ryosuke Niwa">rniwa</who>
    <bug_when>2020-04-08 18:17:19 -0700</bug_when>
    <thetext>(In reply to Philip Jägenstedt from comment #3)
&gt; I came across the tests for custom built-in elements in WPT:
&gt; https://wpt.fyi/results/custom-elements/builtin-coverage.
&gt; html?run_id=478440003&amp;run_id=484130003&amp;run_id=461580002
&gt; 
&gt; This bug is about the custom elements API overall, is there a bug about
&gt; built-in elements specifically?

That would be https://bugs.webkit.org/show_bug.cgi?id=182671 (with the resolution of WONTFIX).</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1642601</commentid>
    <comment_count>5</comment_count>
    <who name="Philip Jägenstedt">philip</who>
    <bug_when>2020-04-17 01:07:55 -0700</bug_when>
    <thetext>Thanks Ryosuke! I&apos;ve linked to that bug in https://github.com/web-platform-tests/wpt-metadata/pull/145. It isn&apos;t displayed inline on wpt.fyi yet, but would in the future make it clear that these failures are associated with a closed bug and not a new/unknown failure.</thetext>
  </long_desc>
      
      

    </bug>

</bugzilla>