Use http/2 :)

Author: SpaceK33z

lib/Server.js

@@ -5,7 +5,7 @@ var express = require("express");
 var compress = require("compression");
 var sockjs = require("sockjs");
 var http = require("http");
-var https = require("https");
+var spdy = require("spdy");
 var httpProxyMiddleware = require("http-proxy-middleware");
 var serveIndex = require("serve-index");
 var historyApiFallback = require("connect-history-api-fallback");
@@ -307,7 +307,13 @@ function Server(compiler, options) {
 		options.https.cert = options.https.cert || fs.readFileSync(path.join(__dirname, "../ssl/server.crt"));
 		options.https.ca = options.https.ca || fs.readFileSync(path.join(__dirname, "../ssl/ca.pem"));
 
-		this.listeningApp = https.createServer(options.https, app);
+		if(!options.https.spdy) {
+			options.https.spdy = {
+				protocols: ["h2", "http/1.1"]
+			};
+		}
+
+		this.listeningApp = spdy.createServer(options.https, app);
 	} else {
 		this.listeningApp = http.createServer(app);
 	}

package.json

@@ -13,8 +13,9 @@
     "http-proxy-middleware": "~0.17.1",
     "opn": "4.0.2",
     "serve-index": "^1.7.2",
-    "sockjs": "0.3.17",
+    "sockjs": "0.3.18",
     "sockjs-client": "1.1.1",
+    "spdy": "^3.4.1",
     "strip-ansi": "^3.0.0",
     "supports-color": "^3.1.1",
     "webpack-dev-middleware": "^1.4.0",