Simple node.js, connecting to server

I'm learning node.js and am trying to connect to the server I've created but my browser won't connect. I'm testing on a live server.

My server.js in my /public_html consists of this:

var http = require("http"); 

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

http.createServer(onRequest).listen(8888);
console.log("Server has started");

which I launch from the console via node server.js and I get the "Server has started" message but when I point my browser at myhost.com:8888 it won't connect., after trying for a long time I get Error 101 (net::ERR_CONNECTION_RESET): The connection was reset. What am I forgetting?