_role">8.1 Role Attribute</a> role token list selection and <a href="https://w3c.github.io/aria/#document-handling_author-errors_roles">9.1 Roles - handling author errors</a>.</p>

  <!-- known el and two known ARIA 1.0 roles -->
  <nav role="region group" data-testname="fallback role w/ region with no label" data-expectedrole="group" class="ex">x</nav>
  <nav role="region group" data-testname="fallback role w/ region with label" aria-label="x" data-expectedrole="region" class="ex">x</nav>

  <!-- known el 