Node.js current url - not original

How to get the current url in node js ? I have following code but it doesn't work properly.

var http = require("http");

function onRequest(request, response) {
  console.log("Request received.");
  response.writeHead(200, {"Content-Type": "text/plain"});
  response.write("Hello World");
  console.log(request.headers.host);
  response.end();
}

http.createServer(onRequest).listen(3000);

Apache redirecting localhost:3000 to node.dev domain. When I run above code I have: localhost:3000 but I want to node.dev (with subdomain, all url)