<?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>216015</bug_id>
          
          <creation_ts>2020-08-31 14:48:13 -0700</creation_ts>
          <short_desc>Missing exception check while handling the onbeforeunload event.</short_desc>
          <delta_ts>2020-08-31 19:46:46 -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>WebCore JavaScript</component>
          <version>WebKit Nightly Build</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="Mark Lam">mark.lam</reporter>
          <assigned_to name="Mark Lam">mark.lam</assigned_to>
          <cc>saam</cc>
    
    <cc>webkit-bug-importer</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>1684261</commentid>
    <comment_count>0</comment_count>
    <who name="Mark Lam">mark.lam</who>
    <bug_when>2020-08-31 14:48:13 -0700</bug_when>
    <thetext>&lt;rdar://problem/66324934&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1684272</commentid>
    <comment_count>1</comment_count>
      <attachid>407629</attachid>
    <who name="Mark Lam">mark.lam</who>
    <bug_when>2020-08-31 15:06:14 -0700</bug_when>
    <thetext>Created attachment 407629
proposed patch.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1684357</commentid>
    <comment_count>2</comment_count>
      <attachid>407629</attachid>
    <who name="Mark Lam">mark.lam</who>
    <bug_when>2020-08-31 19:42:31 -0700</bug_when>
    <thetext>Comment on attachment 407629
proposed patch.

Thanks for the review.  Landing now.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1684358</commentid>
    <comment_count>3</comment_count>
    <who name="EWS">ews-feeder</who>
    <bug_when>2020-08-31 19:45:13 -0700</bug_when>
    <thetext>Committed r266383: &lt;https://trac.webkit.org/changeset/266383&gt;

All reviewed patches have been landed. Closing bug and clearing flags on attachment 407629.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1684359</commentid>
    <comment_count>4</comment_count>
    <who name="Radar WebKit Bug Importer">webkit-bug-importer</who>
    <bug_when>2020-08-31 19:46:03 -0700</bug_when>
    <thetext>&lt;rdar://problem/68115033&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1684360</commentid>
    <comment_count>5</comment_count>
    <who name="Mark Lam">mark.lam</who>
    <bug_when>2020-08-31 19:46:46 -0700</bug_when>
    <thetext>&lt;rdar://problem/66324934&gt;</thetext>
  </long_desc>
      
          <attachment
              isobsolete="0"
              ispatch="1"
              isprivate="0"
          >
            <attachid>407629</attachid>
            <date>2020-08-31 15:06:14 -0700</date>
            <delta_ts>2020-08-31 19:45:13 -0700</delta_ts>
            <desc>proposed patch.</desc>
            <filename>bug-216015.patch</filename>
            <type>text/plain</type>
            <size>5319</size>
            <attacher name="Mark Lam">mark.lam</attacher>
            
              <data encoding="base64">SW5kZXg6IFNvdXJjZS9XZWJDb3JlL0NoYW5nZUxvZwo9PT09PT09PT09PT09PT09PT09PT09PT09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</data>

          </attachment>
      

    </bug>

</bugzilla>