test_midi_permission_prompt.html

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<html>

  <head>

    <title>WebMIDI Listener Test</title>

    <script src="/tests/SimpleTest/SimpleTest.js"></script>

    <script type="application/javascript" src="MIDITestUtils.js"></script>

  </head>

  <body onload="runTests()">

    <script class="testbody" type="application/javascript">

     SimpleTest.waitForExplicitFinish();

     async function runTests() {

       await MIDITestUtils.permissionSetup(true);

       try {

         await navigator.requestMIDIAccess({ "sysex": false });

         ok(true, "Prompting for permissions succeeded!");

       } catch (e) {

         ok(false, "Prompting for permissions failed!");

       SimpleTest.finish();

    </script>

  </body>

</html>