[NODEJS] Simple CORS proxy that works within a corporate Proxy

cors-proxy.js

var http = require('http');
var url = require('url');
var request = require('request');
/*
    Start server by `nodejs thisfile.js`
    Usage: goto "localhost:1337?url=http://www.google.com" to proxify google
*/

//Custom set the PORT, or you can use one defined in the env.
http.createServer(onRequest).listen(1337);

function onRequest(req, res) {
    //setting the CORS headers.
    res.setHeader('Access-Control-Allow-Origin', '*');
    res.setHeader('Access-Control-Request-Method', '*');
    res.setHeader('Access-Control-Allow-Methods', 'GET,PUT,POST,DELETE');
    res.setHeader('Access-Control-Allow-Headers', 'Content-Type');
    var queryData = url.parse(req.url, true).query;
    if (queryData.url) {
        //Optional PROXY if behind a Proxy-Server, note that Http and Https are both
        //piped through http://proxy:8080 in this case
    request({'url':queryData.url,
        'proxy':'http://10.3.100.207:8080'}).on('error', function(e) {
            res.end(e+'');
        }).pipe(res);
    }
    else {
        res.end("This is the homepage!, try localhost:1337?url=http://www.google.com to goto google!");
    }
}