tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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mutate-rules.https.html (3332B)

      1 <!DOCTYPE html>
      2 <title>Mutating speculationrules script elements</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/dispatcher/dispatcher.js"></script>
      7 <script src="/common/utils.js"></script>
      8 <script src="../resources/utils.js"></script>
      9 <script src="resources/utils.sub.js"></script>
     10 
     11 <script>
     12 "use strict";
     13 
     14 setup(() => assertSpeculationRulesIsSupported());
     15 
     16 promise_test(async t => {
     17  const win = await spawnWindow(t);
     18  const nextURL = win.getExecutorURL({ executor: "counting-executor.py", page: 2 });
     19 
     20  // Prefetch the URL which will count whether or not we're prefetched.
     21  await win.forceSinglePrefetch(nextURL);
     22 
     23  // Check that the server was indeed hit with a prefetch request.
     24  const requestCount = await (await fetch(nextURL + "&check")).json();
     25  assert_equals(requestCount.prefetch, 1, "prefetch count");
     26  assert_equals(requestCount.nonPrefetch, 0, "non-prefetch count");
     27 
     28  // Now remove the speculation rules.
     29  await win.execute_script(() => {
     30    document.querySelector("script[type=speculationrules]").remove();
     31  });
     32 
     33  // Navigating must not use the prefetched result.
     34  await win.navigate(nextURL);
     35  assert_not_prefetched(await win.getRequestHeaders());
     36 }, "Removing the <script type=speculationrules> must cancel the prefetch");
     37 
     38 promise_test(async t => {
     39  const win = await spawnWindow(t);
     40  const nextURL = win.getExecutorURL({ executor: "counting-executor.py", page: 2 });
     41 
     42  // Prefetch the URL which will count whether or not we're prefetched.
     43  await win.forceSinglePrefetch(nextURL);
     44 
     45  // Check that the server was indeed hit with a prefetch request.
     46  const requestCount = await (await fetch(nextURL + "&check")).json();
     47  assert_equals(requestCount.prefetch, 1, "prefetch count");
     48  assert_equals(requestCount.nonPrefetch, 0, "non-prefetch count");
     49 
     50  // Now update the speculation rules to remove that rule.
     51  await win.execute_script(() => {
     52    document.querySelector("script[type=speculationrules]").textContent = JSON.stringify({
     53      prefetch: []
     54    });
     55  });
     56 
     57  // Navigating must use the prefetched result.
     58  await win.navigate(nextURL);
     59  assert_prefetched(await win.getRequestHeaders());
     60 }, "Removing a rule from the <script type=speculationrules> must not cancel the prefetch");
     61 
     62 promise_test(async t => {
     63  const win = await spawnWindow(t);
     64  const nextURL = win.getExecutorURL({ executor: "counting-executor.py", page: 2 });
     65 
     66  // Insert some empty speculation rules
     67  await win.forceSpeculationRules([]);
     68 
     69  // Now update them to include a prefetch (and wait for a bit.)
     70  await win.execute_script(([nextURL]) => {
     71    document.querySelector("script[type=speculationrules]").textContent = JSON.stringify({
     72      prefetch: [{ urls: [nextURL] }]
     73    });
     74  }, [nextURL]);
     75  new Promise(resolve => t.step_timeout(resolve, 2000));
     76 
     77  const requestCount = await (await fetch(nextURL + "&check")).json();
     78  assert_equals(requestCount.prefetch, 0, "prefetch count");
     79  assert_equals(requestCount.nonPrefetch, 0, "non-prefetch count");
     80 
     81  // Navigating must not use the prefetched result.
     82  await win.navigate(nextURL);
     83  assert_not_prefetched(await win.getRequestHeaders());
     84 }, "Adding a rule to the <script type=speculationrules> must not prefetch");
     85 </script>