File: dialog-closewatcher-crash.html

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<!DOCTYPE html>

<!-- This test passes if it does not crash. -->

<dl>
  <dt contenteditable></dt>
  <dialog open></dialog>
</dl>

<script>
  const dialog = document.querySelector('dialog');
  dialog.open = false;
  document.querySelector('dl').addEventListener("focusin", () => {
    dialog.showModal();
  });
  document.defaultView.requestIdleCallback(() => {
    window.getSelection().addRange(document.createRange());
    dialog.close();
  });
</script>