peerServer.js

var express = require('express');
var app = express();
var PORT = 8080
var ExpressPeerServer = require('peer').ExpressPeerServer;
var path = require('path');
var http = require('http');
var https = require('https');
var fs = require('fs');

var sslOptions = {
  ca: fs.readFileSync('./ssl/tan90_tech.ca-bundle'),
  key: fs.readFileSync('./ssl/webster.key'),
  cert: fs.readFileSync('./ssl/tan90_tech.crt')
};

var server = https.createServer(sslOptions, app).listen(PORT);

peerServer = ExpressPeerServer(server, {debug: true});

// CORS
app.use(function(req, res, next) {
  res.header("Access-Control-Allow-Origin", "*");
  res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
  next();
});

app.use('/peerjs', peerServer);

peerServer.on('connection', function(id) {
    console.log(id)
  console.log(server._clients)
});

server.on('disconnect', function(id) {
    console.log(id + "deconnected")
});

app.use('/', express.static(path.join(__dirname, '/client')))