From 81ba4ad82b0c48735aac30d5a11f0fcb6da0f47d Mon Sep 17 00:00:00 2001
From: Zhou xiao <codingzx@gmail.com>
Date: Mon, 18 Mar 2024 15:46:14 +0800
Subject: [PATCH] fix(sandbox): Avoid dom repeated agent insertion (#663)

---
 packages/browser-vm/src/dynamicNode/index.ts | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/packages/browser-vm/src/dynamicNode/index.ts b/packages/browser-vm/src/dynamicNode/index.ts
index a72aa6f78..2f73b116d 100644
--- a/packages/browser-vm/src/dynamicNode/index.ts
+++ b/packages/browser-vm/src/dynamicNode/index.ts
@@ -122,13 +122,17 @@ export function makeElInjector(sandboxConfig: SandboxOptions) {
     ) => {
       for (const name of methods) {
         const fn = window.Element.prototype[name];
-        if (typeof fn !== 'function' || fn[__domWrapper__]) {
+        const symbolProxyName = Symbol.for(name + '_proxy');
+        const proxyFlag = window.Element.prototype[symbolProxyName];
+        if (typeof fn !== 'function' || fn[__domWrapper__] || proxyFlag) {
           continue;
         }
         rawElementMethods[name] = fn;
         const wrapper = builder(fn, name);
         wrapper[__domWrapper__] = true;
         window.Element.prototype[name] = wrapper;
+        // Avoid being re-mediated by the function
+        window.Element.prototype[symbolProxyName] = true;
       }
     };
     rewrite(mountElementMethods, injector);