File: fetch-event-throws-after-respond-with.https.html

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<!DOCTYPE html>
<meta charset=utf-8>
<title></title>
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<script src="resources/test-helpers.sub.js"></script>
<script>

promise_test(function(t) {
    var scope = 'resources/fetch-event-throws-after-respond-with-iframe.html';
    var workerscript = 'resources/respond-then-throw-worker.js';
    var iframe;
    return service_worker_unregister_and_register(t, workerscript, scope)
      .then(function(reg) {
          t.add_cleanup(function() {
              return service_worker_unregister(t, scope);
            });

          return wait_for_state(t, reg.installing, 'activated')
            .then(() => reg.active);
        })
      .then(function(worker) {
          var channel = new MessageChannel();
          channel.port1.onmessage = function(e) {
              assert_equals(e.data, 'SYNC', ' Should receive sync message.');
              channel.port1.postMessage('ACK');
            }
          worker.postMessage({port: channel.port2}, [channel.port2]);
          // The iframe will only be loaded after the sync is completed.
          return with_iframe(scope);
        })
      .then(function(frame) {
        assert_true(frame.contentDocument.body.innerHTML.includes("intercepted"));
      })
  }, 'Fetch event handler throws after a successful respondWith()');

</script>