Node-based http/https proxy to forego the pain of configuring iptables for one-off dev tasks. Not recommended to be used in prod environments.

proxy.js

var fs = require('fs'),
  http = require('http'),
  https = require('https'),
  httpProxy = require('http-proxy');

var isHttps = true; // do you want a https proxy?

var options = {
  https: {
    key: fs.readFileSync('key.pem'),
    cert: fs.readFileSync('key-cert.pem')
  }
};

// this is the target server
var proxy = new httpProxy.HttpProxy({
  target: {
    host: '127.0.0.1',
    port: 8080
  }
});

if (isHttps)
  https.createServer(options.https, function(req, res) {
    console.log('Proxying https request at %s', new Date());
    proxy.proxyRequest(req, res);
  }).listen(443, function(err) {
    if (err)
      console.log('Error serving https proxy request: %s', req);

    console.log('Created https proxy. Forwarding requests from %s to %s:%s', '443', proxy.target.host, proxy.target.port);
  });
else
  http.createServer(options.https, function(req, res) {
    console.log('Proxying http request at %s', new Date());
    console.log(req);
    proxy.proxyRequest(req, res);
  }).listen(80, function(err) {
    if (err)
      console.log('Error serving http proxy request: %s', req);

    console.log('Created http proxy. Forwarding requests from %s to %s:%s', '80', proxy.target.host, proxy.target.port);
  });

well I have trouble with https

https.createServer({key:key,cert:cert}, (req,res)=>{
                console.log('request');
                res.writeHead(200, {'Content-Type': 'text/plain'});
                res.end('okay');
            }).on('connection'),(s)=>{console.log('connnection')
               .listen(l.port,l.host));

It turns out that when browser use the server as proxy to reach another host, the 'request' event seems not to be emmited, while the 'connection' event is emmited, leaving the CONNECTION request from the browser untouched.
it is on windows 10 and nodejs 5.

well I'm sorry, it is actually a CONNECT request instead of CONNECTION

httpProxy.HttpProxy is not a function used this package (wrong npm package?): https://www.npmjs.com/package/http-proxy