tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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cors-check.https.html (2580B)

      1 <!DOCTYPE html>
      2 <html>
      3  <head>
      4    <title>
      5      Test if MediaElementAudioSourceNode works for cross-origin redirects with
      6      "cors" request mode.
      7    </title>
      8    <script src="/resources/testharness.js"></script>
      9    <script src="/resources/testharnessreport.js"></script>
     10    <script src="/webaudio/resources/audit.js"></script>
     11    <script src="/common/get-host-info.sub.js"></script>
     12  </head>
     13  <body>
     14    <script id="layout-test-code">
     15      const audit = Audit.createTaskRunner();
     16 
     17      setup(() => {
     18        const context = new AudioContext();
     19        context.suspend();
     20 
     21        const host_info = get_host_info();
     22        const audioElement = document.createElement('audio');
     23        audioElement.loop = true;
     24        audioElement.crossOrigin = 'anonymous';
     25        const wav =
     26            host_info.HTTPS_ORIGIN + '/webaudio/resources/4ch-440.wav?' +
     27            'pipe=header(access-control-allow-origin,*)';
     28        audioElement.src =
     29            host_info.HTTPS_REMOTE_ORIGIN +
     30            '/fetch/api/resources/redirect.py?location=' +
     31            encodeURIComponent(wav);
     32        let source;
     33        let workletRecorder;
     34 
     35        audit.define(
     36            {label: 'setting-up-graph'},
     37            (task, should) => {
     38              source = new MediaElementAudioSourceNode(context, {
     39                mediaElement: audioElement
     40              });
     41              workletRecorder = new AudioWorkletNode(
     42                  context, 'recorder-processor', {channelCount: 4});
     43              source.connect(workletRecorder).connect(context.destination);
     44              task.done();
     45            });
     46 
     47        // The recorded data from MESN must be non-zero. The source file contains
     48        // 4 channels of sine wave.
     49        audit.define(
     50            {label: 'start-playback-and-capture'},
     51            (task, should) => {
     52              workletRecorder.port.onmessage = (event) => {
     53                if (event.data.type === 'recordfinished') {
     54                  for (let i = 0; i < event.data.recordBuffer.length; ++i) {
     55                    const channelData = event.data.recordBuffer[i];
     56                    should(channelData, `Recorded channel #${i}`)
     57                        .notBeConstantValueOf(0);
     58                  }
     59                }
     60 
     61                task.done();
     62              };
     63 
     64              context.resume();
     65              audioElement.play();
     66            });
     67 
     68        Promise.all([
     69          context.audioWorklet.addModule('/webaudio/js/worklet-recorder.js')
     70        ]).then(() => {
     71          audit.run();
     72        });
     73      });
     74    </script>
     75  </body>
     76 </html>