chromium/third_party/blink/web_tests/tables/mozilla/dom/deleteTbodyRebuild1.html

<HEAD>
<SCRIPT src=tableDom.js>
</SCRIPT>
<SCRIPT>

function doIt() {
  deleteTbodyAt(0, 0);
}
</SCRIPT>  
</HEAD>
<BODY onload="doIt()">
It should never be the case that deleting a tbody causes a rebuild
of the cell map since cells cannot span out of tbodies. However, this is a bug.
<BR><BR>
The 2 tables should look the same
<table bgcolor=orange border>
 <tbody>
  <tr>
   <td>c11</td><td>c12</td>
  </tr>
  <tr>
   <td rowspan=2>c21</td><td>c22</td>
  </tr>
 </tbody>
 <tbody>
  <tr>
   <td>c31</td><td>c32</td>
  </tr>
  <tr>
   <td>c41</td><td>c42</td>
  </tr>
 </tbody>
</table>
<BR>
<table bgcolor=orange border>
 <tbody>
  <tr>
   <td>c31</td><td>c32</td>
  </tr>
  <tr>
   <td>c41</td><td>c42</td>
  </tr>
 </tbody>
</table>
<BR>

</BODY></HTML>