Basic node.js server without express, returning HTML contents instead plain text.

server.js

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

var server = http.createServer(function(request, response) {
  response.writeHead(200, {'Content-Type': 'text/html'});
  response.write('<h1>Hello World!</h1>');
  response.end();
});

server.listen(port, function() {
  console.log('Server working at http://localhost:' + port);
});