l, which can be necessary when complex data tables with more than one level of heading are used. </p>
      <p>The failure occurs when the relationship between data cells and corresponding header cells cannot be programmatically determined correctly because the association of id and headers attributes is faulty. This can happen, for example, when copying code within tables and forgetting to update the code.</p>
   </section><section class="examples"><h2>Examples</h2>
      <p>Note: The example below is base