I get a status 200 when connecting to the websocket, but it is an error?

Question

My error shows up in the console of my browser:

"WebSocket connection to 'ws://localhost:32768/DspClusterWebServices/myHandler' failed: Unexpected response code: 200"

I am using Spring Websockets 4.1.5 and Tomcat 8.0.18. My WebSocketConfigurer implementation class looks like:

@Configuration @Controller @EnableWebSocket public class WebSocketConfig implements WebSocketConfigurer {    class MyHandler implements WebSocketHandler    {       @Override       public void afterConnectionEstablished(WebSocketSession session) throws Exception       {          System.out.println("afterConntectionEstablished called");       }         ...implements rest of functions with a System.out.println and false for supportsPartialMessages()        }    }     @Override registerWebSocketHandlers(WebSocketHandlerRegistry registry)    {       registry.addHandler(myHandler(), "myHandler").withSockJS();    }     @Bean    public WebSocketHandler myHandler()    {       return new MyHandler();    } } 

My testWebsocketClient.js tries to connect with this code, but has a error code of 200:

websocket = new WebSocket("ws://localhost:8080/myApp/myHandler"); 

I cannot figure out what to try next. I thought that this would cause the afterConnectionEstablished(WebSocketSession session) method to fire? Isn't code 200 good?

Answer 1

Please check http://procbits.com/connecting-to-a-sockjs-server-from-native-html5-websocket!

After you append /websocket (to your URL), it will give you the error

Failed to parse Origin header value [null]

;) , which then will in turn lead you to that link.

You'll have to add .setAllowedOrigins("*") to your addHandler() method, and then it could finally work!