Enable compression on Express server

server/package.json

@@ -9,6 +9,7 @@
   "dependencies": {
     "base-64": "^0.1.0",
     "colors": "^1.1.2",
+    "compression": "^1.7.3",
     "debug": "^4.1.0",
     "express": "^4.16.3",
     "mediasoup": "^2.1.0",

server/server.js

@@ -9,6 +9,7 @@ const fs = require('fs');
 const https = require('https');
 const http = require('http');
 const express = require('express');
+const compression = require('compression');
 const url = require('url');
 const Logger = require('./lib/Logger');
 const Room = require('./lib/Room');
@@ -39,6 +40,8 @@ const tls =
 
 const app = express();
 
+app.use(compression());
+
 const dataporten = new Dataporten.Setup(config.oauth2);
 
 app.all('*', (req, res, next) =>