Prerender.io and node.js rendering empty page

I'm not sure how to set up prerender.io and node.js. On prerender.io, it just says to add

app.use(require('prerender-node').set('prerenderToken', 'TOKEN'));

      

        
        
        
      

    

inside the application.

My code looks like this:

var express = require('express');
var app = module.exports = express();
app.use(require('prerender-node').set('prerenderToken', 'TOKEN'));
app.listen(3000);

      

        
        
        
      

    

When visiting http: //192.168.xx: 3000 / http: //myangularjswebsite.com/? _Escaped_fragment_ it takes a few seconds to load and then displays a blank page.

Any suggestions?