tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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avoid-delaying-onload-link-modulepreload-exec.html (807B)

      1 <!DOCTYPE html>
      2 <script src="/resources/testharness.js"></script>
      3 <script src="/resources/testharnessreport.js"></script>
      4 <script src="/preload/resources/preload_helper.js"></script>
      5 <link rel=modulepreload href="resources/slow-exec.js">
      6 <script>
      7    setup(() => {
      8        const link = window.document.createElement("link");
      9        assert_implements(
     10            'relList' in link,
     11            'HTMLLinkElement.relList is not supported');
     12 
     13        assert_implements(
     14            link.relList.supports("modulepreload"),
     15            'modulepreload is not supported');
     16    });
     17 
     18    promise_test(async t => {
     19        await new Promise(r => window.addEventListener("load", r));
     20 
     21        assert_false(!!window.didLoadModule);
     22    }, "Executing modulepreload should not block the window's load event");
     23 </script>