A simple nodeJS server with CORS support

server.js

//Lets require/import the HTTP module
const http = require('http');
const util = require('util')

//Lets define a port we want to listen to
const PORT = 8080;

//We need a function which handles requests and send response
function handleRequest(request, response) {
    response.setHeader('Access-Control-Allow-Origin', '*');
    response.setHeader('Access-Control-Request-Method', '*');
    response.setHeader('Access-Control-Allow-Methods', '*');
    response.setHeader('Access-Control-Allow-Headers', 'Authorization');
    response.setHeader('Access-Control-Request-Headers', '*');
    if (request.method === 'OPTIONS') {
        response.writeHead(200);
        response.end();
        return;
    }
    response.end(request.url);
}

//Create a server
var server = http.createServer(handleRequest);

//Lets start our server
server.listen(PORT, function() {
    //Callback triggered when server is successfully listening. Hurray!
    console.log("Server listening on: http://localhost:%s", PORT);
});