Hello,
II would like to use socket.io to create a small multiplayer game.
To try this lib, I try to install a Shared-canvas script found on the Coding Train site (tuto about websocket). It works well on a local server but not on a "external"server.
Would anyone ever experience socket.io other than on a local server?
I badly need help 
The problem seems to be come from CORS.
Is anyone know how to deal with it ?
Thanks, but the problem is not with the image but with the data coming from a client, go to the server and then to the client two (and vice versa)
Never dealt w/ server-side programming yet. 
But if you control the server, you should be able to set it up CORS-free. 