From 7e1ec0dc9ff830fd758e6512b51c8b4a4f981a60 Mon Sep 17 00:00:00 2001
From: lawvs <18554747+lawvs@users.noreply.github.com>
Date: Fri, 12 Apr 2024 02:32:01 +0800
Subject: [PATCH] fix: unsubscribe ydoc update listener

---
 src/components/preview-panel.tsx | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/components/preview-panel.tsx b/src/components/preview-panel.tsx
index 08f45c4..c64187b 100644
--- a/src/components/preview-panel.tsx
+++ b/src/components/preview-panel.tsx
@@ -21,10 +21,14 @@ export function PreviewPanel() {
     if (!yDoc) {
       return;
     }
-    yDoc.on("update", () => {
+    const callback = () => {
       // Force re-render
       setCount((count) => count + 1);
-    });
+    };
+    yDoc.on("update", callback);
+    return () => {
+      yDoc.off("update", callback);
+    };
   }, [yDoc]);
 
   return (