From a16143aae94415cee408f85f81bfda06bf934f26 Mon Sep 17 00:00:00 2001
From: IgorA100 <igora100@gmail.com>
Date: Tue, 5 Aug 2025 19:02:06 +0300
Subject: [PATCH] Fix: Check for existence of "this.webrtc" before checking
 "close" method (MonitorStream.js)

In addition to #4407
Otherwise, there may be an error when switching start/stop quickly.
---
 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 a5f4d04c52..ed3a1a2a50 100644
--- a/web/js/MonitorStream.js
+++ b/web/js/MonitorStream.js
@@ -549,7 +549,7 @@ function MonitorStream(monitorData) {
           console.warn(e);
         }
       }
-      if (close in this.webrtc) this.webrtc.close();
+      if (this.webrtc && ('close' in this.webrtc)) this.webrtc.close();
       this.webrtc = null;
     } else if (-1 !== this.activePlayer.indexOf('rtsp2web')) {
       if (this.webrtc) {