From 27b99164da889f332dc5cf075996326a512a1f65 Mon Sep 17 00:00:00 2001
From: Paul Kevan <2290623+pkevan@users.noreply.github.com>
Date: Wed, 21 Aug 2024 15:29:59 +0100
Subject: [PATCH] Update head.php (#538)

Adds addition check around query_var lookup.
---
 source/wp-content/themes/wporg-developer-2023/inc/head.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/source/wp-content/themes/wporg-developer-2023/inc/head.php b/source/wp-content/themes/wporg-developer-2023/inc/head.php
index 5cf1cc47..9f6d6a07 100644
--- a/source/wp-content/themes/wporg-developer-2023/inc/head.php
+++ b/source/wp-content/themes/wporg-developer-2023/inc/head.php
@@ -48,7 +48,7 @@ public static function document_title( $parts ) {
 			if ( get_post_type_object( $post_type ) ) {
 				$parts['title'] .= " $sep " . get_post_type_object( $post_type )->labels->singular_name;
 			}
-		} elseif ( ( is_singular() || is_post_type_archive() ) && false !== strpos( $post_type, 'handbook' ) ) {
+		} elseif ( ( is_singular() || is_post_type_archive() ) && is_string( $post_type ) && false !== strpos( $post_type, 'handbook' ) ) {
 			// Add handbook name to title if relevant.
 			if ( get_post_type_object( $post_type ) ) {
 				$handbook_label = get_post_type_object( $post_type )->labels->name;