<html class="test-wait">
<img id="img1">text
<script>
async function trigger1() {
  let img = document.getElementById('img1');
  let computed_accessible_node = await self.getComputedAccessibleNode(img);
  // The next sibling is a text node.
  let next_sibling = computed_accessible_node.nextSibling;
  await next_sibling.ensureUpToDate();
  document.documentElement.className = '';
}
trigger1();
</script>
</html>
