Node.js / Socket.io Access-Control-Allow-Origin error on both local and remote site

world ! I'm trying to get a JSON feed to my client, through my node/socket.io server. All I keep getting, locally, or remotely (using nodejitsu) is the following error : XMLHttpRequest cannot load http://jsonfeed.url. Origin http://example.com is not allowed by Access-Control-Allow-Origin.

From my research and testing, it doesn't depend on my browser, but on my server code. please enlighten me!

Server code (i can provide more, but tried to be concise):

var fs = require('fs'),
http = require('http');

//use of a fs and node-static to serve the static files to client

function handler(request, response) {
"use strict";
response.writeHead(200, {
                     'Content-Type': 'text/html',
                     'Access-Control-Allow-Origin' : '*'});
fileServer.serve(request, response); // this will return the correct file
}

var app = http.createServer(handler),
iosocks = require('socket.io').listen(app),
staticserv = require('node-static'); // for serving files

// This will make all the files in the current folder
// accessible from the web
var fileServer = new staticserv.Server('./');
app.listen(8080);

That's it, I have tried everything... Time to call the geniuses!