referrer-toplevel-script-fetch.https.html

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This test has a WPT meta file that expects 2 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /service-workers/service-worker/referrer-toplevel-script-fetch.https.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<title>Service Worker: check referrer of top-level script fetch</title>

<meta name="timeout" content="long">

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<script src="/common/get-host-info.sub.js"></script>

<script src="resources/test-helpers.sub.js?pipe=sub"></script>

<script>

async function get_toplevel_script_headers(worker) {

  worker.postMessage("getHeaders");

  return new Promise((resolve) => {

    navigator.serviceWorker.onmessage = (event) => {

      resolve(event.data);

};

});

promise_test(async (t) => {

  const script = "resources/test-request-headers-worker.py";

  const scope = "resources/blank.html";

  const host_info = get_host_info();

  const registration = await service_worker_unregister_and_register(

    t, script, scope);

  t.add_cleanup(() => service_worker_unregister(t, scope));

  await wait_for_state(t, registration.installing, "activated");

  const expected_referrer = host_info["HTTPS_ORIGIN"] + location.pathname;

  // Check referrer for register().

  const register_headers = await get_toplevel_script_headers(registration.active);

  assert_equals(register_headers["referer"], expected_referrer, "referrer of register()");

  // Check referrer for update().

  await registration.update();

  await wait_for_state(t, registration.installing, "installed");

  const update_headers = await get_toplevel_script_headers(registration.waiting);

  assert_equals(update_headers["referer"], expected_referrer, "referrer of update()");

}, "Referrer of the top-level script fetch should be the document URL");

promise_test(async (t) => {

  const script = "resources/test-request-headers-worker.py";

  const scope = "resources/blank.html";

  const host_info = get_host_info();

  const registration = await service_worker_unregister_and_register(

    t, script, scope, {type: 'module'});

  t.add_cleanup(() => service_worker_unregister(t, scope));

  await wait_for_state(t, registration.installing, "activated");

  const expected_referrer = host_info["HTTPS_ORIGIN"] + location.pathname;

  // Check referrer for register().

  const register_headers = await get_toplevel_script_headers(registration.active);

  assert_equals(register_headers["referer"], expected_referrer, "referrer of register()");

  // Check referrer for update().

  await registration.update();

  await wait_for_state(t, registration.installing, "installed");

  const update_headers = await get_toplevel_script_headers(registration.waiting);

  assert_equals(update_headers["referer"], expected_referrer, "referrer of update()");

}, "Referrer of the module script fetch should be the document URL");

</script>