From ba2ff523947197dd1dde54e9bd9e60ffc637dae3 Mon Sep 17 00:00:00 2001
From: Bonchellon <bonkyprod@gmail.com>
Date: Fri, 6 Feb 2026 02:38:32 +0300
Subject: [PATCH] 123

---
 apps/web/src/components/editor/lesson-content-viewer.tsx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/apps/web/src/components/editor/lesson-content-viewer.tsx b/apps/web/src/components/editor/lesson-content-viewer.tsx
index feebec7..67ee69a 100644
--- a/apps/web/src/components/editor/lesson-content-viewer.tsx
+++ b/apps/web/src/components/editor/lesson-content-viewer.tsx
@@ -57,7 +57,7 @@ export function LessonContentViewer({ content, className }: LessonContentViewerP
     if (!containerRef.current || !content) return;
     const mermaidNodes = containerRef.current.querySelectorAll('pre[data-language="mermaid"]');
     if (mermaidNodes.length === 0) return;
-    mermaid.run({ nodes: Array.from(mermaidNodes), suppressErrors: true }).catch(() => {});
+    mermaid.run({ nodes: Array.from(mermaidNodes) as HTMLElement[], suppressErrors: true }).catch(() => {});
   }, [content]);
 
   if (!editor) return null;