<html class="reftest-wait">
  <script>
  let pp;
  let num = 0;
  window.addEventListener("MozReftestInvalidate", finish);
  window.requestIdleCallback(() => {
    pp = SpecialPowers.wrap(self).printPreview();
    pp?.print();
    finish();
  });
  function finish() {
    num++;
    if (num < 2) {
      return;
    }
    setTimeout(function() {
      pp.close();
      document.documentElement.className = "";
    }, 0);
  }
  </script>
  <template></template>
</html>