title: does flash generate a "NetStream.Play.StreamNotFound" error while trying to play an INVALID LIVE stream?
body: <p>I used NetStream.play("invalid-live-stream-url") to play an invalid live stream.
  The other arguments are using default, e.g. start = -2, len = -1.</p>
  
  <p>The menu says that when we use the default "start" and "len" to call "NetStream.play", "Plays the live stream until it is no longer available. If a live stream of the specified name is not found, Flash Player plays a recorded stream until it ends." </p>
  
  <p>However, I do not have a recorded stream on the server that has the same name as the live stream, and I did not get the expected "NetStream.Play.StreamNotFound" error.</p>