[mediasource-is-type-supported.html]
  prefs: [media.mediasource.enabled:true]
  expected:
    if (os == "win") and debug and (processor == "x86_64"): [OK, ERROR]
  [Test invalid MIME format "video/webm"]
    bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1191833
    expected: FAIL

  [Test invalid MIME format "video/webm;"]
    bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1191833
    expected: FAIL

  [Test invalid MIME format "video/webm;codecs"]
    bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1191833
    expected: FAIL

  [Test invalid MIME format "video/webm;codecs="]
    bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1191833
    expected: FAIL

  [Test invalid MIME format "video/webm;codecs=""]
    bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1191833
    expected: FAIL

  [Test invalid MIME format "video/webm;codecs="""]
    bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1191833
    expected: FAIL

  [Test invalid MIME format "audio/webm;aaacodecsbbb=opus"]
    expected: FAIL