redirect www link to non www IN Node.js (Endless redirect error)

I read an answer about this and tried to implement it yet was stuck in an endless redirect loop.

I have a domain maxmastalerz.com and If anyone visits it from www.maxmastalerz.com I would like it to go to maxmastalerz.com (no www).

So, The method I implemented is seen in my code here:

My routes file:

var app = require('../app.js');

app.get('/*', function(req, res, next) {
    if (req.headers.host.match(/^www/) !== null ) {
        res.redirect('http://' + req.headers.host.replace(/^www\./, '') + req.url);
    } else {
        next();
    }
});

app.get('/', function(req, res) {
    res.render('index.html', {});
});

And finally, if you need it: My app.js file:

var express     = require('express');
var http        = require('http');
var path        = require('path');
var app         = module.exports = express();
var cacheTime   = 86400000*7; //a week

// all environments
app.set('port', process.env.PORT || 3000);
app.set('views', __dirname + '/views');
app.engine('html', require('hogan-express'));
app.use(express.favicon());
app.use(express.logger('dev'));
app.use(express.bodyParser());
app.use(express.methodOverride());
app.use(app.router);
app.use(express.compress());
app.use(express.static(__dirname + '/public',{ maxAge: cacheTime }));

// development only
if ('development' === app.get('env')) {
  app.use(express.errorHandler());
}

require('./mongodb.js');
require('./routes/index.js');

http.createServer(app).listen(app.get('port'), function(req,res){
    console.log('Express server listening on port ' + app.get('port'));
});

So, can anyone explain why this is happening?

P.S: This is being hosted on Heroku and the domain setting there is: www.maxmastalerz.com

EDIT

This code redirects to maxmastalerz.com but endlessly loops, it may be my domain setup here:

HOST NAME                   IP ADRESS/URL                        RECORD TYPE
@                           http://www.maxmastalerz.com          URL FRAME
www                         maxmastalerz.herokuapp.com.          CNAME (Alias)