tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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service-workers.https.html (4555B)

      1 <!DOCTYPE html>
      2 <title>Service Workers APIs with prerendering</title>
      3 <meta name="timeout" content="long">
      4 <script src="/resources/testharness.js"></script>
      5 <script src="/resources/testharnessreport.js"></script>
      6 <script src="/common/utils.js"></script>
      7 <script src="/common/dispatcher/dispatcher.js"></script>
      8 <script src="/service-workers/service-worker/resources/test-helpers.sub.js"></script>
      9 <script src="../resources/utils.js"></script>
     10 <script src="resources/utils.js"></script>
     11 
     12 <body>
     13 <script>
     14 setup(() => assertSpeculationRulesIsSupported());
     15 
     16 // This delay is to prevent a race condition which can cause false passes -
     17 // a service worker might take some time to install, and if activation is too quick it might
     18 // end up occuring after activation by chance.
     19 const ACTIVATION_DELAY = 500;
     20 
     21 promise_test(async t => {
     22  const reg = await service_worker_unregister_and_register(
     23    t, "./resources/service-worker.js", `resources/`);
     24 
     25  t.add_cleanup(() => reg.unregister());
     26  const {exec} = await create_prerendered_page(t);
     27  const {text, prerendering} = await exec(async () => {
     28    const text = await (await fetch(`ping`)).text();
     29    return {text, prerendering: document.prerendering};
     30  });
     31 
     32  assert_true(prerendering);
     33  assert_equals(text, 'pong');
     34 }, 'A prerendered page should be able to access an existing Service Worker');
     35 
     36 promise_test(async t => {
     37  const {exec, activate} = await create_prerendered_page(t);
     38  const scope = `./${token()}/`;
     39  await exec(async scope => {
     40    window.serviceWorkerInstalled = new Promise(resolve => {
     41      navigator.serviceWorker.register('./service-worker.js', {scope})
     42        .then(reg => {
     43          reg.unregister();
     44          resolve({prerendering: document.prerendering});
     45        });
     46    });
     47  }, [scope]);
     48 
     49  await new Promise(resolve => t.step_timeout(resolve, ACTIVATION_DELAY));
     50 
     51  await activate();
     52 
     53  const {prerendering} = await exec(async () => { return await window.serviceWorkerInstalled});
     54  assert_false(prerendering, 'Service Worker Installation should occur after activation');
     55 }, 'Registering a new service worker from a prerendered page should be delayed');
     56 
     57 promise_test(async t => {
     58  const uid = token();
     59  const reg = await service_worker_unregister_and_register(
     60    t, "./resources/service-worker.js", `./resources/${uid}/`);
     61  t.add_cleanup(() => reg.unregister());
     62 
     63  const {exec, activate} = await create_prerendered_page(t);
     64  await exec(async uid => {
     65    window.serviceWorkerUnregistered = (async () => {
     66      const regs = await navigator.serviceWorker.getRegistrations();
     67      const reg = regs.find(r => r.scope.includes(uid));
     68      await reg.unregister();
     69      return {prerendering: document.prerendering};
     70    })();
     71  }, [uid]);
     72 
     73  await new Promise(resolve => t.step_timeout(resolve, ACTIVATION_DELAY));
     74 
     75  await activate();
     76 
     77  const {prerendering} = await exec(() => window.serviceWorkerUnregistered);
     78  assert_false(prerendering, 'Service Worker deregistration should occur after activation');
     79 }, 'Unregistering an exsiting service worker from a prerendered page should be delayed');
     80 
     81 promise_test(async t => {
     82  const uid = token();
     83  const reg = await service_worker_unregister_and_register(
     84    t, "./resources/service-worker.js", `./resources/${uid}/`);
     85  t.add_cleanup(() => reg.unregister());
     86 
     87  const {exec, activate} = await create_prerendered_page(t);
     88  await exec(async uid => {
     89    window.serviceWorkerUpdated = (async () => {
     90      const regs = await navigator.serviceWorker.getRegistrations();
     91      const reg = regs.find(r => r.scope.includes(uid));
     92      await reg.update();
     93      return {prerendering: document.prerendering};
     94    })();
     95  }, [uid]);
     96 
     97  await new Promise(resolve => t.step_timeout(resolve, ACTIVATION_DELAY));
     98 
     99  await activate();
    100 
    101  const {prerendering} = await exec(() => window.serviceWorkerUpdated);
    102  assert_false(prerendering, 'Service Worker updates should occur after activation');
    103 }, 'Updating an exsiting service worker from a prerendered page should be delayed');
    104 
    105 promise_test(async t => {
    106  const reg = await service_worker_unregister_and_register(
    107    t, "./resources/service-worker.js", 'resources/');
    108 
    109  t.add_cleanup(() => reg.unregister());
    110  const {exec} = await create_prerendered_page(t);
    111  const {clientInfo} = await exec(async () => (await fetch(`client`)).json());
    112  assert_not_equals(clientInfo.id, null);
    113  assert_equals(clientInfo.visibilityState, 'hidden');
    114  assert_equals(clientInfo.focused, false);
    115 }, 'A prerendered page should be accessible as a hidden & unfocused SW client');
    116 </script>