<!DOCTYPE html>
<html>
<head>
<script src="../resources/ui-helper.js"></script>
</head>
<script>
  if (window.testRunner) {
    testRunner.dumpAsText();
    testRunner.waitUntilDone();
  }
  onload = async () => {
    let iframe0 = document.createElement('iframe');
    iframe0.src = 'data:application/pdf,x';
    document.body.append(iframe0);

    await caches.has('a');
    await caches.has('a');

    $vm.print('before');
    iframe0.remove();
    $vm.print('after');
    await UIHelper.waitForPDFFadeIn();
    testRunner?.notifyDone();
  };
</script>
<p>This test passes if it does not timeout.</p>
</html>