dom/html/crashtests/1290904.html

   1 <!DOCTYPE html>
   2 <html>
   3   <body>
   4     <fieldset id="outer">
   5       <fieldset id="inner">
   6       </fieldset>
   7     </fieldset>
   8   </body>
   9 </html>
  10 <script>
  11 function appendTextareaToFieldset(fieldset) {
  12   var textarea = document.createElement("textarea");
  13   textarea.setAttribute("required", "");
  14   fieldset.appendChild(textarea);
  15 }
  16
  17 var innerFieldset = document.getElementById('inner');
  18 var outerFieldset = document.getElementById('outer');
  19
  20 var fieldset = document.createElement('fieldset');
  21 appendTextareaToFieldset(fieldset);
  22 appendTextareaToFieldset(fieldset);
  23 appendTextareaToFieldset(fieldset);
  24 appendTextareaToFieldset(fieldset);
  25
  26 // Adding a fieldset to a nested fieldset.
  27 innerFieldset.appendChild(fieldset);
  28 appendTextareaToFieldset(fieldset);
  29 appendTextareaToFieldset(fieldset);
  30 // This triggers mInvalidElementsCount checks in outer fieldset.
  31 appendTextareaToFieldset(outerFieldset);
  32
  33 // Removing a fieldset from a nested fieldset.
  34 innerFieldset.removeChild(fieldset);
  35 // This triggers mInvalidElementsCount checks in outer fieldset.
  36 appendTextareaToFieldset(outerFieldset);
  37 </script>