Finalize referrer form finisher by adding request middlewareπ

public/typo3conf/ext/ep_theme/Configuration/RequestMiddlewares.php

@@ -0,0 +1,12 @@
+<?php
+
+return [
+    'frontend' => [
+        'ep/referrer' => [
+            'target' => \EP\EpTheme\Middleware\ReferrerMiddleware::class,
+            'after' => [
+                'typo3/cms-frontend/site',
+            ],
+        ],
+    ],
+];