From e2baff310c6515b0a8542385b1c3e28ab057c733 Mon Sep 17 00:00:00 2001
From: Vanessa <lly219@gmail.com>
Date: Fri, 9 Jun 2023 10:43:59 +0800
Subject: [PATCH] :art: fix https://github.com/siyuan-note/siyuan/issues/8478

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

diff --git a/app/src/protyle/toolbar/util.ts b/app/src/protyle/toolbar/util.ts
index 878c08fb2..f177d7f6a 100644
--- a/app/src/protyle/toolbar/util.ts
+++ b/app/src/protyle/toolbar/util.ts
@@ -14,6 +14,9 @@ export const previewTemplate = (pathString: string, element: Element, parentId:
 };
 
 const mergeElement = (a: Element, b: Element, after = true) => {
+    if (!a.getAttribute("data-type") || !b.getAttribute("data-type")) {
+        return false;
+    }
     a.setAttribute("data-type", a.getAttribute("data-type").replace("search-mark", "").trim());
     b.setAttribute("data-type", b.getAttribute("data-type").replace("search-mark", "").trim());
     const attributes = a.attributes;