From f43bf7319d56e59fef104905cfef3bec90b1c425 Mon Sep 17 00:00:00 2001
From: Thomas Hohn <tho@gyldendal.dk>
Date: Tue, 24 Sep 2024 11:21:58 +0200
Subject: [PATCH] [BUGFIX] Wrap loading of seo functionality in isLoaded clause

---
 ext_localconf.php | 42 ++++++++++++++++++++++--------------------
 1 file changed, 22 insertions(+), 20 deletions(-)

diff --git a/ext_localconf.php b/ext_localconf.php
index 407b0d7c..18f96c63 100644
--- a/ext_localconf.php
+++ b/ext_localconf.php
@@ -79,27 +79,29 @@ static function () {
             ];
         }
 
-        $GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['TYPO3\CMS\Frontend\Page\PageGenerator']['generateMetaTags']['canonical'] =
-            CanonicalGenerator::class . '->handle';
+        if (ExtensionManagementUtility::isLoaded('seo')) {
+            $GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['TYPO3\CMS\Frontend\Page\PageGenerator']['generateMetaTags']['canonical'] =
+                CanonicalGenerator::class . '->handle';
 
-        $metaTagManagerRegistry = GeneralUtility::makeInstance(MetaTagManagerRegistry::class);
-        $metaTagManagerRegistry->registerManager(
-            'html5',
-            Html5MetaTagManager::class
-        );
-        $metaTagManagerRegistry->registerManager(
-            'edge',
-            EdgeMetaTagManager::class
-        );
-        $metaTagManagerRegistry->registerManager(
-            'opengraph',
-            OpenGraphMetaTagManager::class
-        );
-        $metaTagManagerRegistry->registerManager(
-            'twitter',
-            TwitterCardMetaTagManager::class
-        );
-        unset($metaTagManagerRegistry);
+            $metaTagManagerRegistry = GeneralUtility::makeInstance(MetaTagManagerRegistry::class);
+            $metaTagManagerRegistry->registerManager(
+                'html5',
+                Html5MetaTagManager::class
+            );
+            $metaTagManagerRegistry->registerManager(
+                'edge',
+                EdgeMetaTagManager::class
+            );
+            $metaTagManagerRegistry->registerManager(
+                'opengraph',
+                OpenGraphMetaTagManager::class
+            );
+            $metaTagManagerRegistry->registerManager(
+                'twitter',
+                TwitterCardMetaTagManager::class
+            );
+            unset($metaTagManagerRegistry);
+        }
 
         $rendererRegistry = GeneralUtility::makeInstance(RendererRegistry::class);
         $rendererRegistry->registerRendererClass(YouTubeRenderer::class);