Simple HTTP Server written in NodeJS with Response from JSON File

app.js

var http  = require('http');
var fs    = require('fs');
var port  = "8080" ;

http.createServer(function(request, response) {

    response.writeHead(200, {
      'Content-Type': 'text/json',
      'Access-Control-Allow-Origin': '*',
      'X-Powered-By':'nodejs'
    });


    fs.readFile('response.json', function(err, content){
        response.write(content);
        response.end();
    });

}).listen(port);

console.log("Listening on port " + port );

response.json

{
  "message": "This is a test server",
  "results": ["this", "is", "a", "test", "server"]
}