From 8abbe298d545de17d34a9bc1eb72af4c5a4b41b8 Mon Sep 17 00:00:00 2001
From: Divyansh Singh <40380293+brc-dd@users.noreply.github.com>
Date: Thu, 14 Aug 2025 09:15:38 +0530
Subject: [PATCH] fix: html entities encoded twice in toc plugin

closes #4908
---
 src/node/markdown/markdown.ts | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/node/markdown/markdown.ts b/src/node/markdown/markdown.ts
index f3e168e6..e1d08cac 100644
--- a/src/node/markdown/markdown.ts
+++ b/src/node/markdown/markdown.ts
@@ -320,7 +320,11 @@ export async function createMarkdownRenderer(
     .use(titlePlugin)
     .use(tocPlugin, {
       slugify,
-      ...options.toc
+      ...options.toc,
+      format: (s) => {
+        const title = s.replaceAll('&amp;', '&') // encoded twice because of restoreEntities
+        return options.toc?.format?.(title) ?? title
+      }
     } as TocPluginOptions)
 
   if (options.math) {