WebSocket handshake: Unexpected response code: 404

Question

Am writing my first websocket program and am getting \"WebSocket handshake: Unexpected response code: 404\", error while loading the webpage.

I am using

Answer 1

Actually, the problem here is case-sensitivity in the URLs. You did not need to change the project name. Just changing the Websocket URL in JavaScript file to

ws://localhost:8080/WebSocketHome/actions 

(with capital S, as in the project name) would have solved the problem. In your case, changing both of them removed the case inconsistency, so it worked.