Access-Control-Allow-Origin by same domain?

Question

XMLHttpRequest cannot load http://server.chatcoding.net:8000/socket.io/
socket.io.js.
Origin http://www.chatcoding.net is not allowed by Access-Control-Allow-Origin. 

That thing is preventing the socket script from loading. What happened here? It's still on the same domain, but why is it emitting that error?

Anyone? Thank you. :)

Answer 1

You are on a same domain, but different ports (80 and 8000; source). the cross-domain policy is then applied. Try to setup your response header like that :

response.setHeader("Access-Control-Allow-Origin", "*")