From a84a5c0571a4236bb2cc18262a791103af986d8a Mon Sep 17 00:00:00 2001
From: Alex Yusiuk <55661041+RRRadicalEdward@users.noreply.github.com>
Date: Fri, 4 Jul 2025 12:59:33 +0300
Subject: [PATCH] fix(web): prevent `onMonitorClipboard` from re-scheduling
 after `iron-remote-desktop` component destroys (#856)

---
 .../src/iron-remote-desktop.svelte               | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/web-client/iron-remote-desktop/src/iron-remote-desktop.svelte b/web-client/iron-remote-desktop/src/iron-remote-desktop.svelte
index 4cdeff0b..b21b46f3 100644
--- a/web-client/iron-remote-desktop/src/iron-remote-desktop.svelte
+++ b/web-client/iron-remote-desktop/src/iron-remote-desktop.svelte
@@ -71,6 +71,8 @@
     let lastSentClipboardData: ClipboardData | null = null;
     let lastClipboardMonitorLoopError: Error | null = null;
 
+    let componentDestroyed = false;
+
     /* Firefox-specific BEGIN */
 
     // See `ffRemoteClipboardData` variable docs below
@@ -185,12 +187,11 @@
 
     // Called periodically to monitor clipboard changes
     async function onMonitorClipboard() {
-        if (!document.hasFocus()) {
-            setTimeout(onMonitorClipboard, CLIPBOARD_MONITORING_INTERVAL);
-            return;
-        }
-
         try {
+            if (!document.hasFocus()) {
+                return;
+            }
+
             var value = await navigator.clipboard.read();
 
             // Clipboard is empty
@@ -291,7 +292,9 @@
                 lastClipboardMonitorLoopError = err;
             }
         } finally {
-            setTimeout(onMonitorClipboard, CLIPBOARD_MONITORING_INTERVAL);
+            if (!componentDestroyed) {
+                setTimeout(onMonitorClipboard, CLIPBOARD_MONITORING_INTERVAL);
+            }
         }
     }
 
@@ -723,6 +726,7 @@
 
     onDestroy(() => {
         window.removeEventListener('resize', resizeHandler);
+        componentDestroyed = true;
     });
 </script>