chromium/content/test/data/accessibility/event/caret-move-hidden-input.html

<div aria-hidden="true">
  <input id="input" aria-label="search" value="foo">
</div>
<script>
  function go() {
    var input = document.getElementById("input");
    input.focus();
    input.setSelectionRange(1, 1);
  }
</script>