title: WebRTC signaling server Websocket connection closed in Chrome
body: <p>I managed to deploy the WebRTC signaling server (<a href="https://github.com/andyet/signalmaster" rel="nofollow noreferrer">https://github.com/andyet/signalmaster</a>). And there is only one problem remaining
  For some reason, the connection does not work in Chrome. Chrome throws a warning:</p>
  
  <pre><code>WebSocket connection to '&lt;wss://.......:8888/socket.io/?EIO=3&amp;transport=websocket&amp;sid=-OpElfbpa4_ZAGS9AAAK&gt;' failed: WebSocket is closed before the connection is established.
  </code></pre>
  
  <p>Hovewer it works fine in Firefox. 
  I set up the SSL certificates. Signaling server is running on EC2.
  Do you have any thoughts how to fix this?</p>