proxy.js

var http = require('http');
var url = require('url');
var request = require('request');

http.createServer(onRequest).listen(3000);

function onRequest(req, res) {
  
  res.setHeader('Access-Control-Allow-Origin', '*');
  res.setHeader('Access-Control-Request-Method', '*');
  res.setHeader('Access-Control-Allow-Methods', 'OPTIONS, GET');
  res.setHeader('Access-Control-Allow-Headers', '*');
  
  if ( req.method === 'OPTIONS' ) {
    res.writeHead(200);
    res.end();
    return;
  }
  
  var queryData = url.parse(req.url, true).query;
  if (queryData.url) {
    request({
      url: queryData.url
    }).on('error', function(e) {
      res.end(e);
    }).pipe(res);
  }
  else {
    res.end("no url found");
  }
}