Try exporting with nw.js. That should create an executable. Beyond that my knowledge ends though. Browser security exists to prevent exactly what you are trying to do though.

Well if it were an easy, "This is how you do it." someone else would have answered already. It's not, so I asked clarifying questions to get at exactly what you want so that I can help you rather than sending you down a rabbit hole.

Lat. and Long. are not in meters. They are in degrees or other units.

You cannot connect to an http server using web sockets. You have to connect via the ws or wss protocol.

This line of code:

var socket = io.connect("http://localhost:8080");

Is absurd and will never work. Don't believe me though, I have a working websocket server/client.

You are trying to connect using HTTP. You need to use WS like:

ws://server-ip/socket.io/i

Do you mind if people can hack your scores?

Why are you opening executable files in your browser?

Does it scroll infinitely? If so, it is still doable, but you have to jump through more hoops to make it happen nicely.

Creating/destroying is one way to do it. You can also move the object off-screen or change the visibility/opacity.

You can try having a host player hosted on your server, then just have both players connect to that host peer.

You use HTTP GET or POST requests to transfer information using AJAX.

Are you in control of your server code? If your GET request works, but your POST does not, then I would look at the server side code for your POST requests.

I use Java servlets to handle GET and POST requests to my server, and it goes something like this:

http://stackoverflow.com/questions/2349 ... n-servlets

or

http://www.codejava.net/java-ee/servlet ... va-servlet

Yea, like EA's Dragon Age: Inquisition can be hacked in that way too.