From e3fe1f147e444a7be740b60e32f9e5d4d466e044 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=90=91=E6=98=8E=E6=98=9F?= <321212099@qq.com>
Date: Sun, 10 Nov 2024 18:06:46 +0800
Subject: [PATCH] fix

---
 src/forge/Head/Header.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/forge/Head/Header.js b/src/forge/Head/Header.js
index 08268c8ed..eccd5d502 100644
--- a/src/forge/Head/Header.js
+++ b/src/forge/Head/Header.js
@@ -311,7 +311,7 @@ class NewHeader extends Component {
 
   checkLink=(link)=>{
     let { settings,} = this.state;
-    if(link.indexOf("http")>-1){
+    if(link && link.indexOf("http")>-1){
       return link;
     }else{
       return settings.new_course.default_url + link;