[WICKET-6232] When sending binary data from server to client, wicket-websocket-jquery.js throws error "message.indexOf is not a function"

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 7.4.0
• Fix Version/s: 8.0.0-M2, 6.25.0, 7.5.0
• Component/s: wicket-native-websocket
• Assignee: Martin Tzvetanov Grigorov
• Reporter: C Quarters
• Created: 24/Aug/16 10:44
• Updated: 28/Aug/16 21:39
• Resolved: 24/Aug/16 22:11

Description

On the server I'm calling this method
org.apache.wicket.protocol.ws.api.IWebSocketConnection.sendMessage(byte[] message, int offset, int length)

The Wicket javascript client code (wicket-websocket-jquery.js) assumes the incoming message is a string and attempts to detect if it's an ajax response.

self.ws.onmessage = function (event) {
var message = event.data;
if (message && message.indexOf('<ajax-response>') > -1)

{ var call = new Wicket.Ajax.Call(); call.process(message); }

else

{ Wicket.Event.publish(topics.Message, message); }

};

https://github.com/apache/wicket/blob/master/wicket-native-websocket/wicket-native-websocket-core/src/main/java/org/apache/wicket/protocol/ws/api/res/js/wicket-websocket-jquery.js