From 901dac8c7b56c28774a3d0d86bed61f5b9d69756 Mon Sep 17 00:00:00 2001
From: Kuitos <kuitos.lau@gmail.com>
Date: Sun, 26 Feb 2023 16:49:55 +0800
Subject: [PATCH] =?UTF-8?q?=F0=9F=A7=91=E2=80=8D=F0=9F=92=BBnot=20rebind?=
 =?UTF-8?q?=20a=20bounded=20function=20of=20document=20(#2412)?=
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---
 src/sandbox/patchers/dynamicAppend/forStrictSandbox.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/sandbox/patchers/dynamicAppend/forStrictSandbox.ts b/src/sandbox/patchers/dynamicAppend/forStrictSandbox.ts
index 07a992b..ae4a876 100644
--- a/src/sandbox/patchers/dynamicAppend/forStrictSandbox.ts
+++ b/src/sandbox/patchers/dynamicAppend/forStrictSandbox.ts
@@ -4,7 +4,7 @@
  */
 
 import type { Freer, SandBox } from '../../../interfaces';
-import { nativeDocument, nativeGlobal } from '../../../utils';
+import { isBoundedFunction, nativeDocument, nativeGlobal } from '../../../utils';
 import { getCurrentRunningApp } from '../../common';
 import type { ContainerConfig } from './common';
 import {
@@ -59,7 +59,7 @@ function patchDocument(cfg: { sandbox: SandBox; speedy: boolean }) {
 
         const value = (<any>target)[p];
         // must rebind the function to the target otherwise it will cause illegal invocation error
-        if (typeof value === 'function') {
+        if (typeof value === 'function' && !isBoundedFunction(value)) {
           return value.bind(target);
         }