From c2a7038406a44499ed29ff6d3d4cf90712a609fc Mon Sep 17 00:00:00 2001
From: rhymes <github@rhymes.dev>
Date: Tue, 29 Jun 2021 11:13:56 +0200
Subject: [PATCH] Chat: disconnect IntersectionObserver (#14091)

---
 app/javascript/chat/util.js | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/app/javascript/chat/util.js b/app/javascript/chat/util.js
index f0991fff1..e2f8f5ec4 100644
--- a/app/javascript/chat/util.js
+++ b/app/javascript/chat/util.js
@@ -53,7 +53,18 @@ export function setupObserver(callback) {
   const somethingObserver = new IntersectionObserver(callback, {
     threshold: [0, 1],
   });
+
   somethingObserver.observe(sentinel);
+
+  window.addEventListener('beforeunload', () => {
+    somethingObserver.disconnect();
+  });
+
+  if (typeof instantClick !== 'undefined') {
+    InstantClick.on('change', () => {
+      somethingObserver.disconnect();
+    });
+  }
 }
 
 export function hideMessages(messages, userId) {