tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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clear-prefetch-cache-after-clear-site-data-cache.https.html (2638B)


      1 <!DOCTYPE html>
      2 <script src="/resources/testharness.js"></script>
      3 <script src="/resources/testharnessreport.js"></script>
      4 <script src="/common/dispatcher/dispatcher.js"></script>
      5 <script src="/common/utils.js"></script>
      6 <script src="../resources/utils.js"></script>
      7 <script src="resources/utils.sub.js"></script>
      8 <script>
      9  setup(() => assertSpeculationRulesIsSupported());
     10 
     11  // Test that Clear-Site-Data header value "prefetchCache" clears prefetch cache
     12  promise_test(async t => {
     13    let agent = await spawnWindow(t, { protocol: 'https' });
     14    let nextUrl = agent.getExecutorURL({protocol: 'https', page: 2 });
     15    await agent.forceSinglePrefetch(nextUrl);
     16 
     17    // Open new window with url to clear cache data through Clear-Site-Data header.
     18    // Ensure that the cache is cleared before the navigation.
     19    const gotMessage = new Promise(resolve => {
     20      window.addEventListener('message', e => {
     21        resolve(e.data);
     22      }, {
     23        once: true
     24      });
     25    });
     26    window.open("/../../clear-site-data/support/clear-site-data-prefetchCache.py");
     27    await gotMessage;
     28 
     29    await agent.navigate(nextUrl);
     30    // Because Clear-Site-Data response header is sent, prefetches are expected
     31    // to be evicted.
     32    // The navigation to nextURL is not expected to use the prefetch cache.
     33    assert_not_prefetched(await agent.getRequestHeaders());
     34  }, "clear-site-data prefetchCache headers should prevent it from being fetched");
     35 
     36    // Test that Clear-Site-Data header value "cache" clears prefetch cache
     37  promise_test(async t => {
     38    let agent = await spawnWindow(t, { protocol: 'https' });
     39    let nextUrl = agent.getExecutorURL({protocol: 'https', page: 2 });
     40    await agent.forceSinglePrefetch(nextUrl);
     41 
     42    // Open new window with url to clear cache data through Clear-Site-Data header.
     43    // Ensure that the cache is cleared before the navigation.
     44    const gotMessage = new Promise(resolve => {
     45      window.addEventListener('message', e => {
     46        resolve(e.data);
     47      }, {
     48        once: true
     49      });
     50    });
     51    let cache_helper = "cache_helper=" + self.crypto.randomUUID() + "&";
     52    window.open("/../../clear-site-data/support/clear-site-data-cache.py?" + cache_helper + "response=single_html&cache&clear_first=all");
     53    await gotMessage;
     54 
     55    await agent.navigate(nextUrl);
     56    // Because Clear-Site-Data response header is sent, prefetches are expected
     57    // to be evicted.
     58    // The navigation to nextURL is not expected to use the prefetch cache.
     59    assert_not_prefetched(await agent.getRequestHeaders());
     60  }, "clear-site-data cache headers should prevent it from being fetched");
     61 </script>