I can't get  websocket connection. 
On Chrome console, I receive the following message:  "chatroom.php:72 WebSocket connection to 'ws://localhost:8080/' failed: Error during WebSocket handshake: Unexpected response code: 302";  "Connection Closed!"

And on Windows command prompt, I receive the following message:  "Fatal error: Uncaught RuntimeException: Failed to listen on "tcp://0.0.0.0:8080": An attempt was made to access a socke
t in a way forbidden by its access permissions."