layout/style/crashtests/1566684.html

   1 <!doctype html>
   2 <style>
   3   x { }
   4 </style>
   5 <script>
   6   var sheet = document.styleSheets[0];
   7   var rule = sheet.cssRules[0];
   8   var decl = rule.style;
   9   rule.expando = 5;
  10   decl.expando = 6;
  11   sheet.deleteRule(0);
  12   rule = decl = null;
  13   SpecialPowers.forceGC();
  14   SpecialPowers.forceCC();
  15   SpecialPowers.forceGC();
  16 </script>