tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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track-id.html (855B)

      1 <!DOCTYPE html>
      2 <title>TextTrack "id" attribute</title>
      3 <script src="/resources/testharness.js"></script>
      4 <script src="/resources/testharnessreport.js"></script>
      5 <video>
      6    <track id="LoremIpsum" src="resources/captions-fast.vtt" default>
      7    <script>
      8    test(function() {
      9        var video = document.querySelector("video");
     10        var track = document.querySelector("track");
     11        var textTrack = track.track;
     12 
     13        // Test default attribute value.
     14        assert_equals(textTrack.id, "LoremIpsum");
     15        assert_equals(video.textTracks[0].id, "LoremIpsum");
     16 
     17        // Make sure we can look up tracks by id.
     18        assert_equals(video.textTracks.getTrackById("LoremIpsum"), textTrack);
     19 
     20        // Test that it's readonly.
     21        textTrack.id = "newvalue";
     22        assert_equals(textTrack.id, "LoremIpsum");
     23    });
     24    </script>
     25 </video>