From 8f40caa508cb8499650471b868350027b1178988 Mon Sep 17 00:00:00 2001
From: Vanessa <lly219@gmail.com>
Date: Thu, 20 Oct 2022 01:49:19 +0800
Subject: [PATCH] :bug: fix https://github.com/siyuan-note/siyuan/issues/6275

---
 app/src/layout/Wnd.ts | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/app/src/layout/Wnd.ts b/app/src/layout/Wnd.ts
index 059e0a553..0075b5ef8 100644
--- a/app/src/layout/Wnd.ts
+++ b/app/src/layout/Wnd.ts
@@ -323,6 +323,9 @@ export class Wnd {
 
     public showHeading() {
         const currentElement = this.headersElement.querySelector(".item--focus") as HTMLElement;
+        if (!currentElement) {
+            return;
+        }
         if (currentElement.offsetLeft + currentElement.clientWidth > this.headersElement.scrollLeft + this.headersElement.clientWidth) {
             this.headersElement.scrollLeft = currentElement.offsetLeft + currentElement.clientWidth - this.headersElement.clientWidth;
         } else if (currentElement.offsetLeft < this.headersElement.scrollLeft) {