From 311732acc27349edd60a844ebab6f7a9f17b33f4 Mon Sep 17 00:00:00 2001
From: Jonas <jonas@freesources.org>
Date: Mon, 27 May 2024 13:58:56 +0200
Subject: [PATCH] fix(preview): prev token can be undefined in
 `isPreviewLinkInParagraph`

Fixes: nextcloud/collectives#1231

Signed-off-by: Jonas <jonas@freesources.org>
---
 src/markdownit/preview.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/markdownit/preview.js b/src/markdownit/preview.js
index 8f5a75aeb5c..9933cd743d4 100644
--- a/src/markdownit/preview.js
+++ b/src/markdownit/preview.js
@@ -27,7 +27,7 @@
  */
 function isPreviewLinkInParagraph(tokens, i) {
 	const [prev, cur, next] = tokens.slice(i - 1, i + 2)
-	return prev.type === 'paragraph_open'
+	return prev?.type === 'paragraph_open'
 		&& cur.type === 'inline'
 		&& cur.children
 		&& cur.children.length === 3