[muted.html]
  [getting audio.muted with muted="" (script-created)]
    expected: FAIL

  [setting audio.muted with muted="" (script-created)]
    expected: FAIL

  [adding/removing muted attribute dynamically affects audio.muted]
    expected: FAIL

  [getting video.muted with muted="" (script-created)]
    expected: FAIL

  [setting video.muted with muted="" (script-created)]
    expected: FAIL

  [adding/removing muted attribute dynamically affects video.muted]
    expected: FAIL