The Tor Browser: layout/base/crashtests/387195-2.xhtml@b8a032363ba2

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">

     2 <html xmlns="http://www.w3.org/1999/xhtml">

     3 <title>Testcase for bug </title>

     4 <head>

     5 <script type="text/javascript">

     6 function boom() {

     7   var colgroup = document.createElementNS("http://www.w3.org/1999/xhtml", 'colgroup');

     8   document.getElementById('thead').insertBefore(colgroup, null);

9 }

    10 </script>

    12 <style type="text/css">

    13     thead {border:3px solid purple;}

    14 </style>

    15 </head>

    18 <body onload="boom()">

    20 <table><thead id="thead"></thead></table>

    22 </body>

    23 </html>

The Tor Browser / file revision