From fe6132646dde0fb3dec4eeabc669357ea49df58e Mon Sep 17 00:00:00 2001
From: Vanessa <lly219@gmail.com>
Date: Tue, 29 Apr 2025 10:15:38 +0800
Subject: [PATCH] :art: https://github.com/siyuan-note/siyuan/issues/14290

---
 app/src/protyle/toolbar/index.ts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/app/src/protyle/toolbar/index.ts b/app/src/protyle/toolbar/index.ts
index 4a5d4bd1d..17df7129b 100644
--- a/app/src/protyle/toolbar/index.ts
+++ b/app/src/protyle/toolbar/index.ts
@@ -606,7 +606,9 @@ export class Toolbar {
                 let previousElement = i === newNodes.length ? newNodes[i - 1] as HTMLElement : hasPreviousSibling(newNodes[i]) as HTMLElement;
                 if (previousElement.nodeType === 3 && previousElement.textContent === Constants.ZWSP) {
                     previousElement = hasPreviousSibling(previousElement) as HTMLElement;
-                    previousElement.nextSibling.remove();
+                    if(previousElement) {
+                        previousElement.nextSibling.remove();
+                    }
                 }
                 let currentNode = newNodes[i] as HTMLElement;
                 if (!currentNode) {