From f4639e0a36abe16828b202d7297e1486653b1217 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 7 Oct 2021 19:36:32 -0400
Subject: [PATCH] fix(devtools): clear devtools buffer after timeout

fix #4738
---
 packages/runtime-core/src/devtools.ts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/packages/runtime-core/src/devtools.ts b/packages/runtime-core/src/devtools.ts
index b26fae85d06..b5cbe30608a 100644
--- a/packages/runtime-core/src/devtools.ts
+++ b/packages/runtime-core/src/devtools.ts
@@ -53,6 +53,11 @@ export function setDevtoolsHook(hook: DevtoolsHook, target: any) {
     replay.push((newHook: DevtoolsHook) => {
       setDevtoolsHook(newHook, target)
     })
+    // clear buffer after 3s - the user probably doesn't have devtools installed
+    // at all, and keeping the buffer will cause memory leaks (#4738)
+    setTimeout(() => {
+      buffer = []
+    }, 3000)
   }
 }