From 6d4a01f66f81d1bd74779f2c822fa56767478e52 Mon Sep 17 00:00:00 2001
From: Neil <4138956+nwparker@users.noreply.github.com>
Date: Sun, 31 May 2026 02:52:04 -0700
Subject: [PATCH] fix: parse empty markdown front matter

---
 .../editor/markdown-frontmatter.test.ts       | 20 +++++++++++++++++++
 .../components/editor/markdown-frontmatter.ts |  2 +-
 2 files changed, 21 insertions(+), 1 deletion(-)

diff --git a/src/renderer/src/components/editor/markdown-frontmatter.test.ts b/src/renderer/src/components/editor/markdown-frontmatter.test.ts
index f021a815128..e7875093f1a 100644
--- a/src/renderer/src/components/editor/markdown-frontmatter.test.ts
+++ b/src/renderer/src/components/editor/markdown-frontmatter.test.ts
@@ -49,6 +49,26 @@ describe('extractFrontMatter', () => {
     expect(result!.raw).toBe('---\n\n---\n')
     expect(result!.body).toBe('# Body\n')
   })
+
+  it('handles empty front-matter block without a blank line', () => {
+    const content = '---\n---\n# Body\n'
+    const result = extractFrontMatter(content)
+    expect(result).not.toBeNull()
+    expect(result!.raw).toBe('---\n---\n')
+    expect(result!.body).toBe('# Body\n')
+  })
+
+  it('handles empty TOML front-matter block without a blank line', () => {
+    const content = '+++\n+++\nBody\n'
+    const result = extractFrontMatter(content)
+    expect(result).not.toBeNull()
+    expect(result!.raw).toBe('+++\n+++\n')
+    expect(result!.body).toBe('Body\n')
+  })
+
+  it('does not treat same-line delimiter text as a closing delimiter', () => {
+    expect(extractFrontMatter('---\ntitle: Hello---\n# Body\n')).toBeNull()
+  })
 })
 
 describe('prependFrontMatter', () => {
diff --git a/src/renderer/src/components/editor/markdown-frontmatter.ts b/src/renderer/src/components/editor/markdown-frontmatter.ts
index 6bb6d793e2f..101981549f7 100644
--- a/src/renderer/src/components/editor/markdown-frontmatter.ts
+++ b/src/renderer/src/components/editor/markdown-frontmatter.ts
@@ -1,4 +1,4 @@
-const FRONTMATTER_RE = /^(---|\+\+\+)\r?\n([\s\S]*?)\r?\n\1(?:\r?\n|$)/
+const FRONTMATTER_RE = /^(---|\+\+\+)\r?\n(?:[\s\S]*?\r?\n)?\1(?:\r?\n|$)/
 
 export type FrontMatter = {
   /** The full raw front-matter block including delimiters and trailing newline. */