From 5e746c19ea88ef33cd20b48ac93fd8912872367b Mon Sep 17 00:00:00 2001
From: lejunyang <lejunyang@qq.com>
Date: Thu, 25 Apr 2024 17:42:56 +0800
Subject: [PATCH] fix(components): sync the change from
 https://github.com/vuejs/core/pull/9012

---
 packages/components/src/custom/apiCustomElement.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/components/src/custom/apiCustomElement.ts b/packages/components/src/custom/apiCustomElement.ts
index 5323d91a..8c2fc2b1 100644
--- a/packages/components/src/custom/apiCustomElement.ts
+++ b/packages/components/src/custom/apiCustomElement.ts
@@ -366,7 +366,7 @@ export class VueElement extends BaseClass {
   protected _setAttr(key: string) {
     // ignore data- and aria- attrs
     if (key.startsWith('data-') || key.startsWith('aria-')) return;
-    let value: any = this.getAttribute(key);
+    let value: any = this.hasAttribute(key) ? this.getAttribute(key) : undefined;
     const camelKey = camelize(key);
     if (this._numberProps && this._numberProps[camelKey]) {
       value = toNumberIfValid(value);