From dd77811f0d96bca5b2f860ae044eaed39e4beb15 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jo=C3=A3o=20Salavisa?= <joao.salavisa@gmail.com>
Date: Tue, 17 Mar 2026 14:40:53 +0000
Subject: [PATCH] fix(web): prevent mermaid false positive detection (#443)

---
 apps/web/components/editors/tiptap/tiptap-mermaid-extension.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/apps/web/components/editors/tiptap/tiptap-mermaid-extension.ts b/apps/web/components/editors/tiptap/tiptap-mermaid-extension.ts
index 53279adcfc..ba7c77c9b8 100644
--- a/apps/web/components/editors/tiptap/tiptap-mermaid-extension.ts
+++ b/apps/web/components/editors/tiptap/tiptap-mermaid-extension.ts
@@ -50,7 +50,7 @@ const MERMAID_KEYWORDS = [
   "zenuml",
 ];
 
-const MERMAID_RE = new RegExp(`^\\s*(?:${MERMAID_KEYWORDS.join("|")})(?:\\s|$)`, "m");
+const MERMAID_RE = new RegExp(`^\\s*(?:${MERMAID_KEYWORDS.join("|")})(?:\\s|$)`);
 
 /** Detect mermaid content by language tag OR by first-line keyword. */
 export function isMermaidContent(language: string | null | undefined, text: string): boolean {