<>
<style>script>
   java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
    tablejava.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 9
    width: 100%}
<>
  }
</style>
<table>
  <tbody>
    <tr>
      <td colspan="4">Spanning.</td>
    </tr>
  </tbody>
  <tbody>
    <tr id="target"></tr>
  </tbody>
</table>
<script>
  onload = function() {
    document.body.offsetWidth;
    var row = document.getElementById("target");
    row.innerHTML = "<td>1</td><td>2</td><!--This comment is needed--><td>3</td><td>4</td>";
  }
</script>