Connect to Heroku Node.js server from Java desktop client

Question

I have created a simple game that uses Java, Socket.IO, and a NodeJS server. This game works perfectly when hosted on my local machine.

I am having trouble connecting to the server from the Java game client when it's hosted on heroku .

Does Heroku block connections from desktop clients?

Any help is very much appreciated :)

Java game client connection

public void connectSocket(){

    try{
        socket = IO.socket("https://galaga1v1.herokuapp.com/");
        socket.connect();

    }catch (Exception e){

        System.out.println(e);
    }

}

The server is running

Heroku logs

2016-08-06T20:27:28.433806+00:00 heroku[web.1]: State changed from down to starting
2016-08-06T20:27:29.471418+00:00 heroku[web.1]: Starting process with command `node index.js`
2016-08-06T20:27:31.181351+00:00 heroku[web.1]: State changed from starting to up
2016-08-06T20:27:31.131273+00:00 app[web.1]: Server is now running...

Server code

var app = require('express')();
var server = require('http').Server(app);
var io = require('socket.io')(server);
var players = [];

server.listen(process.env.PORT || 8080, function(){

console.log("Server is now running..." + String(process.env.PORT) );

});

io.on('connection', function(socket){
console.log("Player Connected!");
socket.emit('socketID', { id: socket.id });
socket.emit('getPlayers', players);
socket.broadcast.emit('newPlayer', {id: socket.id});
socket.on('playerMoved', function(data){
    data.id = socket.id;
    socket.broadcast.emit('playerMoved', data);

    for(var i = 0; i < players.length; i++){

        if(players[i].id == data.id){
            players[i].x = data.x;
        }

    }
});

socket.on('playerShoot', function(data){
    data.id = socket.id;
    socket.broadcast.emit('playerShoot', data);

});

socket.on('playerHit',function(data){

    data.id = socket.id;
    socket.broadcast.emit('playerHit', data);
    console.log("player has been hit");


});

socket.on('disconnect', function(){
    console.log("Player Disconnected!");
    socket.broadcast.emit('playerDisconnected', {id: socket.id });
    for(var i = 0; i < players.length; i++){
        if(players[i].id == socket.id){
            players.splice(i,1);
        }
    }
});
players.push(new player(socket.id, 0));
});

function player(id, x){

this.x = x;
this.id = id;

}