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chromium/content/test/data/accessibility/regression/footer-inside-section-role-generic.html 

<!DOCTYPE html>
<section role="presentation">
  <footer>
    <p>footer inside section with role presentational.</p>
  </footer>
</section>
<section role="generic">
  <footer>
    <p>footer inside section with role generic.</p>
  </footer>
</section>