From 7b2f7be8200e1341b0dfee4a7819dfb635f3c785 Mon Sep 17 00:00:00 2001
From: Vanessa <lly219@gmail.com>
Date: Sun, 22 Feb 2026 18:27:55 +0800
Subject: [PATCH] :art: https://github.com/siyuan-note/siyuan/issues/17084

---
 app/src/protyle/wysiwyg/keydown.ts | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/app/src/protyle/wysiwyg/keydown.ts b/app/src/protyle/wysiwyg/keydown.ts
index 0ed130861..ef209d7dd 100644
--- a/app/src/protyle/wysiwyg/keydown.ts
+++ b/app/src/protyle/wysiwyg/keydown.ts
@@ -93,6 +93,9 @@ export const getContentByInlineHTML = (range: Range, cb: (content: string) => vo
 
 export const keydown = (protyle: IProtyle, editorElement: HTMLElement) => {
     editorElement.addEventListener("keydown", async (event: KeyboardEvent & { target: HTMLElement }) => {
+        if (!event.key) {
+            return;
+        }
         if (event.target.localName === "protyle-html" || event.target.localName === "input") {
             event.stopPropagation();
             return;