From 2e7c633e522c69b8b2fa0849dd0ec05fd5e5d6a6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Szabolcs=20Gr=C3=BCnwald?= <sgruenwald@eurofunk.com>
Date: Thu, 28 Jul 2022 16:11:24 +0200
Subject: [PATCH] Add proxying websocket connections

closes !142
---
 lib/http-server.js | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/lib/http-server.js b/lib/http-server.js
index dfe4c474..eb8ad6ef 100644
--- a/lib/http-server.js
+++ b/lib/http-server.js
@@ -139,9 +139,10 @@ function HttpServer(options) {
     handleError: typeof options.proxy !== 'string'
   }));
 
+  var proxy;
   if (typeof options.proxy === 'string') {
     var proxyOptions = options.proxyOptions || {};
-    var proxy = httpProxy.createProxyServer(proxyOptions);
+    proxy = httpProxy.createProxyServer(proxyOptions);
     before.push(function (req, res) {
       proxy.web(req, res, {
         target: options.proxy,
@@ -181,6 +182,15 @@ function HttpServer(options) {
   if (options.timeout !== undefined) {
     this.server.setTimeout(options.timeout);
   }
+
+  if (typeof options.proxy === 'string') {
+    this.server.on('upgrade', function (request, socket, head) {
+      proxy.ws(request, socket, head, {
+        target: options.proxy,
+        changeOrigin: true
+      });
+    });
+  }
 }
 
 HttpServer.prototype.listen = function () {