From 7cf95e6339a826d108b6eeee852471087f625610 Mon Sep 17 00:00:00 2001
From: Jarek Radosz <jradosz@gmail.com>
Date: Fri, 15 Jul 2022 13:35:31 +0200
Subject: [PATCH] DEV: Check if screen-track was destroyed (#17509)

This error is swallowed by `.catch()` but it's an error nonetheless.
---
 app/assets/javascripts/discourse/app/services/screen-track.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/app/assets/javascripts/discourse/app/services/screen-track.js b/app/assets/javascripts/discourse/app/services/screen-track.js
index ae799f26245..d6c73ebbc99 100644
--- a/app/assets/javascripts/discourse/app/services/screen-track.js
+++ b/app/assets/javascripts/discourse/app/services/screen-track.js
@@ -183,6 +183,10 @@ export default class ScreenTrack extends Service {
       },
     })
       .then(() => {
+        if (this.isDestroying || this.isDestroyed) {
+          return;
+        }
+
         this._ajaxFailures = 0;
         const topicController = this._topicController;
         if (topicController) {