title: Cant make sample sender and receiver work
body: <p>I get this while running cast-sender-tool-chrome ( web_sender_tool.html )</p>
  
  <pre><code>API Status: "Initialized"
  Receivers Available: "Yes"
  Session Established: "ERROR: {\"code\":\"session_error\",\"description\":\"NOT_FOUND\",\"details\":null}"
  Last Message Received: N/A
  </code></pre>
  
  <p>Trying to understand what happen, in the receiver</p>
  
  <p><a href="https://googledrive.com/host/0B-Xkvxnj_z2JblZXSXFiZ2hfMlE/sample_media_receiver.html" rel="nofollow">https://googledrive.com/host/0B-Xkvxnj_z2JblZXSXFiZ2hfMlE/sample_media_receiver.html</a></p>
  
  <p>i get this:</p>
  
  <pre><code> [  0.032s] [cast.receiver.IpcChannel] Opening message bus websocket
   cast_receiver.js:19
   [  0.033s] [goog.net.WebSocket] Opening the WebSocket on ws://localhost:8008/v2/ipc
   cast_receiver.js:19
   [  0.035s] [goog.net.WebSocket] An error occurred: undefined
   cast_receiver.js:19
   [  0.036s] [cast.receiver.IpcChannel] IpcChannel error
   cast_receiver.js:19
   [  0.036s] [cast.receiver.CastMessageBus] Dispatching CastMessageBus message [urn:x-cast:com.google.cast.system, SystemSender]: {"type":"error"}
   cast_receiver.js:19
   [  0.037s] [cast.receiver.CastReceiverManager] CastReceiverManager message received: [object Object]
   cast_receiver.js:19
   [  0.038s] [goog.net.WebSocket] The WebSocket on ws://localhost:8008/v2/ipc closed.
   cast_receiver.js:19
   [  0.038s] [cast.receiver.IpcChannel] IpcChannel closed
   cast_receiver.js:19
   [  0.039s] [cast.receiver.CastMessageBus] Dispatching CastMessageBus message [urn:x-cast:com.google.cast.system, SystemSender]: {"type":"closed"}
   cast_receiver.js:19
   [  0.039s] [cast.receiver.CastReceiverManager] CastReceiverManager message received: [object Object]
  </code></pre>
  
  <p>I'm using fedora 19 with google-chrome-beta ( 33 ).</p>
  
  <p>Thanks in advance.</p>