From e6d7e55fbc0d4712adf26950e03235481cfbd3b4 Mon Sep 17 00:00:00 2001
From: Julian Lam <julian@nodebb.org>
Date: Fri, 24 Feb 2023 14:23:42 -0500
Subject: [PATCH] fix: missing postAtIndex handling

---
 src/controllers/topics.js | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/src/controllers/topics.js b/src/controllers/topics.js
index 6033da5958..dd536cdf12 100644
--- a/src/controllers/topics.js
+++ b/src/controllers/topics.js
@@ -249,10 +249,6 @@ async function addTags(topicData, req, res) {
 			rel: 'canonical',
 			href: `${url}/topic/${topicData.slug}`,
 		},
-		{
-			rel: 'author',
-			href: `${url}/user/${postAtIndex.user.userslug}`,
-		},
 	];
 
 	if (!topicData['feeds:disableRSS']) {
@@ -269,6 +265,13 @@ async function addTags(topicData, req, res) {
 			href: `${url}/category/${topicData.category.slug}`,
 		});
 	}
+
+	if (postAtIndex) {
+		res.locals.linkTags.push({
+			rel: 'author',
+			href: `${url}/user/${postAtIndex.user.userslug}`,
+		});
+	}
 }
 
 async function addOGImageTags(res, topicData, postAtIndex) {