From fcd05201908ea081ae9f29988ff5f637c38a0aa8 Mon Sep 17 00:00:00 2001
From: IgorA100 <igora100@gmail.com>
Date: Wed, 2 Apr 2025 23:53:30 +0300
Subject: [PATCH] Fix: Requires using MediaSourse existence check
 (MonitorStream.js)

---
 web/js/MonitorStream.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/web/js/MonitorStream.js b/web/js/MonitorStream.js
index b88cb443c..817685d8c 100644
--- a/web/js/MonitorStream.js
+++ b/web/js/MonitorStream.js
@@ -1238,7 +1238,7 @@ function mseListenerSourceopen(context, videoEl, url) {
     if (this.started) this.restart();
   };
   context.wsMSE.onmessage = function(event) {
-    if (context.mse.readyState !== "open") return;
+    if (!context.mse || (context.mse && context.mse.readyState !== "open")) return;
     const data = new Uint8Array(event.data);
     if (data[0] === 9) {
       let mimeCodec;