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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>243540</bug_id>
          
          <creation_ts>2022-08-04 06:28:24 -0700</creation_ts>
          <short_desc>Stylesheets from other stylesheet sets should be disabled</short_desc>
          <delta_ts>2023-05-25 07:48:33 -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 15</version>
          <rep_platform>Mac (Apple Silicon)</rep_platform>
          <op_sys>macOS 12</op_sys>
          <bug_status>NEW</bug_status>
          <resolution></resolution>
          
          <see_also>https://bugs.webkit.org/show_bug.cgi?id=212515</see_also>
    
    <see_also>https://bugs.webkit.org/show_bug.cgi?id=118708</see_also>
          <bug_file_loc></bug_file_loc>
          <status_whiteboard></status_whiteboard>
          <keywords>BrowserCompat, 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="Nobody">webkit-unassigned</assigned_to>
          <cc>ap</cc>
    
    <cc>bfulgham</cc>
    
    <cc>karlcow</cc>
    
    <cc>koivisto</cc>
    
    <cc>rniwa</cc>
    
    <cc>simon.fraser</cc>
    
    <cc>webkit-bug-importer</cc>
    
    <cc>zalan</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>1888849</commentid>
    <comment_count>0</comment_count>
    <who name="Ahmad Saleem">ahmad.saleem792</who>
    <bug_when>2022-08-04 06:28:24 -0700</bug_when>
    <thetext>Hi Team,

Another test case from Chrome bugs, where Safari 15.6 is failing test case similar to Chrome and I think we should fix and align it with web-spec.

Test Case - https://bug1708045.bmoattachments.org/attachment.cgi?id=9220199

Chrome Bug - https://bugs.chromium.org/p/chromium/issues/detail?id=1205488

Web-Spec Reference (from Chrome Bug Report) - The sheet should be disabled, per https://drafts.csswg.org/cssom/#add-a-css-style-sheet

*** STEPS TO REPRODUCE ***

1) Run the test case and review dialog box

&lt;&gt; EXPECTED RESULT:

PASS (The red stylesheet&apos;s &apos;disabled&apos; flag is true)

&lt;&gt; ACTUAL RESULT:

FAIL (The red stylesheet&apos;s &apos;disabled&apos; flag is false)

____

NOTE - Safari 15.6 and Chrome Canary 106 both fail this test case.

If this has been fixed upstream, please mark this as DUPLICATE.

Thanks!</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1888919</commentid>
    <comment_count>1</comment_count>
      <attachid>461403</attachid>
    <who name="Ryosuke Niwa">rniwa</who>
    <bug_when>2022-08-04 11:48:12 -0700</bug_when>
    <thetext>Created attachment 461403
WIP</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1888920</commentid>
    <comment_count>2</comment_count>
      <attachid>461404</attachid>
    <who name="Ryosuke Niwa">rniwa</who>
    <bug_when>2022-08-04 11:48:22 -0700</bug_when>
    <thetext>Created attachment 461404
Test</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1889578</commentid>
    <comment_count>3</comment_count>
      <attachid>461403</attachid>
    <who name="Ryosuke Niwa">rniwa</who>
    <bug_when>2022-08-07 18:47:00 -0700</bug_when>
    <thetext>Comment on attachment 461403
WIP

View in context: https://bugs.webkit.org/attachment.cgi?id=461403&amp;action=review

&gt; Source/WebCore/style/StyleScope.cpp:408
&gt; +                sheet-&gt;setDisabled(title != m_preferredStylesheetSetName);

This isn&apos;t quite right. Firefox allows unpreferred / disabled script to be enabled again by script.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1890567</commentid>
    <comment_count>4</comment_count>
    <who name="Radar WebKit Bug Importer">webkit-bug-importer</who>
    <bug_when>2022-08-11 06:29:15 -0700</bug_when>
    <thetext>&lt;rdar://problem/98504974&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1957896</commentid>
    <comment_count>5</comment_count>
    <who name="Ahmad Saleem">ahmad.saleem792</who>
    <bug_when>2023-05-25 07:48:33 -0700</bug_when>
    <thetext>Web-Spec: Setting the disabled flag in step 5 of https://drafts.csswg.org/cssom/#add-a-css-style-sheet

Source - Mozilla bug (https://bugzilla.mozilla.org/show_bug.cgi?id=1708045)</thetext>
  </long_desc>
      
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