frame_offline_cancel.html

Enable keyboard shortcuts

<!DOCTYPE html>

<script>

  // Hosts the dedicated worker at this frame's origin and relays one reply per

  // command, so the test can drive a worker on an origin of its choosing.

  const worker = new Worker("worker_offline_cancel.js");

  window.addEventListener("message", function (e) {

    worker.addEventListener("message", ev => parent.postMessage(ev.data, "*"), {

      once: true,

});

    worker.postMessage(e.data);

});

</script>