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chromium/content/test/data/accessibility/aria/aria-hidden-focused-input.html 

<!--
@AURALINUX-ALLOW:focus*
@AURALINUX-ALLOW:hidden*
@AURALINUX-ALLOW:showing
@AURALINUX-ALLOW:visible
-->
<html>
<body>
<div aria-hidden="true">
  <input id="input1" aria-label="input 1">
  <input id="input2" aria-label="input 2">
</div>
<script>
  document.getElementById("input2").focus();
</script>
</body>
</html>