gecko/parser/htmlparser/tests/html/table05d.html

Caption inside cell
<br>Nav 4.0: caption is accepted, terminates both td and tr. 
<br>Xena6.0: ignore misplaced caption tag.
<table border>
  <tr>
    <td>cell 1-1  <caption>caption1</caption> textA
    <td>cell 1-2
  <tr>
    <td>cell 2-1
    <td>cell 2-2
</table>

last text