File: service-worker-iframe.html

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<!DOCTYPE html>
<meta charset="utf-8">
<script src="/resources/testharness.js"></script>
<script src="helpers.js"></script>
<script>
'use strict';

setup({
  explicit_done: true
});

function startTests() {
  promise_test(() => {
    const orig = createOriginalReadableStream();
    const promise = checkTestResults(navigator.serviceWorker);
    navigator.serviceWorker.controller.postMessage(orig, [orig]);
    assert_true(orig.locked, 'the original stream should be locked');
    return promise;
  }, 'serviceWorker.controller.postMessage should be able to transfer a ' +
               'ReadableStream');

  promise_test(() => {
    const promise = testMessageEventOrErrorMessage(navigator.serviceWorker);
    navigator.serviceWorker.controller.postMessage('SEND');
    return promise;
  }, 'postMessage in a service worker should be able to transfer ReadableStream');

  done();
}

// Delay running the tests until we get a message from the page telling us to.
// This is to work around an issue where testharness.js doesn't detect
// completion of the tests if they fail too early.
onmessage = msg => {
  if (msg.data === 'explicit trigger')
    startTests();
};

</script>