From 4baa3f5588e122c73d0ec8cba966199aafe87edf Mon Sep 17 00:00:00 2001
From: Alexey Khit <alexey.khit@gmail.com>
Date: Fri, 4 Aug 2023 16:31:13 +0400
Subject: [PATCH] Fix rare error with ws.close()

---
 www/video-rtc.js | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/www/video-rtc.js b/www/video-rtc.js
index dfb4228a..a259962e 100644
--- a/www/video-rtc.js
+++ b/www/video-rtc.js
@@ -551,12 +551,16 @@ export class VideoRTC extends HTMLElement {
                 this.pcState = WebSocket.OPEN;
 
                 this.wsState = WebSocket.CLOSED;
-                this.ws.close();
-                this.ws = null;
+                if (this.ws) {
+                    this.ws.close();
+                    this.ws = null;
+                }
             } else {
                 this.pcState = WebSocket.CLOSED;
-                this.pc.close();
-                this.pc = null;
+                if (this.pc) {
+                    this.pc.close();
+                    this.pc = null;
+                }
             }
         }