Can't display username, receiving error

//App.js file

var router = require("./router.js");
//Problem:We need a simple way to look at a user's badge count and JavaScript points from the web browser
//Solution:Use Node.js to perform the profile look ups and serve our templates via HTTPS

// Create a web server

var http = require('http');

http.createServer(function (request, response) {
  router.home(request, response);
  router.user(request, response);
  //response.end('Hello World\n');
}).listen(3000);

console.log('Server running at http://<workspace-url>');


// Function that handles the reading of files and merge in values
  //read from file and get a string
    // merge values into string

//Router.js File

var Profile = require("./profile.js");
// Handle the HTTPS route GET / and POST / i.e Home

function home(request, response){
  //if url == "/" && GET
  if(request.url === "/"){
    // show search
  response.writeHead(200, {'Content-Type': 'text/plain'});
  response.write("Header \n"); 
  response.write("Search \n");
  response.end('Footer \n'); 
  }
  //if url == "/" && POST
    // redirect to /:username
}

// Handle the HTTPS route for GET/:username i.e /jamiehalvorson

function user(request, response){
    //if the url == "/...|
  var username = request.url.replace("/", "");
  if(username.length > 0){
    response.writeHead(200, {'Content-Type': 'text/plain'});
    response.write("Header \n"); 

    //get the json from Treehouse
    var studentProfile = new Profile(username);
    //on "end"
    studentProfile.on("end", function(profileJSON){
      //show profile

      //Store the values which we need
      var values = {
        avatarUrl: profileJSON.gravatar_url,
        username: profileJSON.profile_name,
        badges: profileJSON.bages.length,
        javascriptPoints: profileJSON.points.JavaScript
      }

      //simple response
      response.write(values.username + " has " + values.badges + " badges\n");
      response.end('Footer \n'); 

    });

    //on "error"
    studentProfile.on("error", function(error){
      //show error
      response.end('Error \n'); 
    });


  }
}

module.exports.home = home;
module.exports.user = user;

//Profile.js File
var EventEmitter = require("events").EventEmitter;
var http = require("http");
var util = require("util");

/**
 * An EventEmitter to get a Treehouse students profile.
 * @param username
 * @constructor
 */
function Profile(username) {

    EventEmitter.call(this);

    profileEmitter = this;

    //Connect to the API URL (https://teamtreehouse.com/username.json)
    var request = http.get("http://teamtreehouse.com/" + username + ".json", function(response) {
        var body = "";

        if (response.statusCode !== 200) {
            request.abort();
            //Status Code Error
            profileEmitter.emit("error", new Error("There was an error getting the profile for " + username + ". (" + http.STATUS_CODES[response.statusCode] + ")"));
        }

        //Read the data
        response.on('data', function (chunk) {
            body += chunk;
            profileEmitter.emit("data", chunk);
        });

        response.on('end', function () {
            if(response.statusCode === 200) {
                try {
                    //Parse the data
                    var profile = JSON.parse(body);
                    profileEmitter.emit("end", profile);
                } catch (error) {
                    profileEmitter.emit("error", error);
                }
            }
        }).on("error", function(error){
            profileEmitter.emit("error", error);
        });
    });
}

util.inherits( Profile, EventEmitter );

module.exports = Profile;

var EventEmitter = require("events").EventEmitter;
var http = require("http");
var util = require("util");

/**
 * An EventEmitter to get a Treehouse students profile.
 * @param username
 * @constructor
 */
function Profile(username) {

    EventEmitter.call(this);

    profileEmitter = this;

    //Connect to the API URL (https://teamtreehouse.com/username.json)
    var request = http.get("http://teamtreehouse.com/" + username + ".json", function(response) {
        var body = "";

        if (response.statusCode !== 200) {
            request.abort();
            //Status Code Error
            profileEmitter.emit("error", new Error("There was an error getting the profile for " + username + ". (" + http.STATUS_CODES[response.statusCode] + ")"));
        }

        //Read the data
        response.on('data', function (chunk) {
            body += chunk;
            profileEmitter.emit("data", chunk);
        });

        response.on('end', function () {
            if(response.statusCode === 200) {
                try {
                    //Parse the data
                    var profile = JSON.parse(body);
                    profileEmitter.emit("end", profile);
                } catch (error) {
                    profileEmitter.emit("error", error);
                }
            }
        }).on("error", function(error){
            profileEmitter.emit("error", error);
        });
    });
}

util.inherits( Profile, EventEmitter );

module.exports = Profile;