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POChromecast Receiver App Error: The WebSocket disconnected unexpectedly: undefined
 

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  1. POChromecast Receiver App Error: The WebSocket disconnected unexpectedly: undefined
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    <p>I'm trying to get a basic chromecast app setup where I can send a simple custom message from Desktop Chrome to the Chromecast receiver. The devices is whitelisted, and the app sources are sitting at the url specified during the whitelisting process. Additionally the correct API_ID is being used and the NAMESPACE is the same for the receiver and sender apps.</p> <p>The receiver app loads, but just after that I get:</p> <pre><code>[ 0.230s] [goog.net.WebSocket] The WebSocket disconnected unexpectedly: undefined </code></pre> <p>This seems to be preventing me from being able to send custom messages to the Chromecast.</p> <p>From the sender app I am able to locate the device, connect, and launch the receiver app. I am also able to properly disconnect with the stopActivity() call on the sender.</p> <p>The setup for the receiver is:</p> <pre><code>var receiver = new cast.receiver.Receiver(APP_ID, NAMESPACE); var channelHandler = new cast.receiver.ChannelHandler(NAMESPACE); channelHandler.addChannelFactory(receiver.createChannelFactory(NAMESPACE)); channelHandler.addEventListener('error', function($e){ console.log('JAC - Error!'); }); channelHandler.addEventListener('open', function($e){ console.log('JAC - OnOpen!'); }); channelHandler.addEventListener('message', function($e){ console.log('JAC - Message: ' + $e.type); }); receiver.start(); </code></pre> <p>The full log from the Chromecast device is (actual appId removed):</p> <pre><code>[ 0.027s] [cast.receiver.ChannelHandler] New channel factory added: MY-APP-ID to heartbeatChannelHandler cast_receiver.js:66 [ 0.088s] [cast.receiver.ChannelHandler] New channel factory added: receiverTest1: MY-APP-ID to receiverTest1 cast_receiver.js:66 [ 0.094s] [cast.receiver.ConnectionService] Open connection service websocket: url=ws://localhost:8008/connection cast_receiver.js:66 [ 0.098s] [goog.net.WebSocket] Opening the WebSocket on ws://localhost:8008/connection cast_receiver.js:66 [ 0.104s] [cast.receiver.Receiver] Receiver started. cast_receiver.js:66 [ 0.142s] [goog.net.WebSocket] WebSocket opened on ws://localhost:8008/system/control cast_receiver.js:66 [ 0.153s] [cast.receiver.ChannelOverWebSocket] Dispatch OPEN event to ws://localhost:8008/system/control cast_receiver.js:66 [ 0.159s] [cast.receiver.Channel] Dispatch OPEN event to ws://localhost:8008/system/control cast_receiver.js:66 [ 0.164s] [cast.receiver.Platform] Platform channel is open: ws://localhost:8008/system/control cast_receiver.js:66 [ 0.208s] [goog.net.WebSocket] WebSocket opened on ws://localhost:8008/connection cast_receiver.js:66 [ 0.212s] [cast.receiver.ConnectionService] Got event: d cast_receiver.js:66 [ 0.222s] [goog.net.WebSocket] The WebSocket on ws://localhost:8008/connection closed. cast_receiver.js:66 [ 0.225s] [cast.receiver.ConnectionService] Got event: a cast_receiver.js:66 [ 0.230s] [goog.net.WebSocket] The WebSocket disconnected unexpectedly: undefined </code></pre> <p>Any help in the matter would be greatly appreciated! Thanks!</p>
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    1. USJake Callery
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    1. COI'm not ready to propose this as a full-blown answer because I don't know what type `NAMESPACE` is in your `Receiver` constructor, but it's supposed to be an array. If it's not, maybe strange things happen?
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      1. POChromecast Receiver App Error: The WebSocket disconnected unexpectedly: undefined
      1. USdowski
    2. COAhh Bingo! That seems to have made the error go away. Do you want to post that as an answer instead of a comment so that I can give you credit for it?
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      1. USJake Callery
    3. COMoved it to an answer. Thanks!
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      1. USdowski
 

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