--- a/classes/shop/ShopUrl.php
+++ b/classes/shop/ShopUrl.php
@@ -175,15 +175,23 @@
 
     public static function getMainShopDomain($id_shop = null)
     {
-        ShopUrl::cacheMainDomainForShop($id_shop);
-
-        return self::$main_domain[(int) $id_shop] ?? null;
+        // EduBox: dynamic public domain behind reverse proxy or direct local access.
+        // Always use the request host instead of the domain stored in database.
+        // Keep non-standard ports (e.g. localhost:8088) so local access works.
+        $host = Tools::getHttpHost(false, false, false);
+        if (substr($host, -3) === ':80' || substr($host, -4) === ':443') {
+            $host = substr($host, 0, strrpos($host, ':'));
+        }
+        return $host;
     }
 
     public static function getMainShopDomainSSL($id_shop = null)
     {
-        ShopUrl::cacheMainDomainForShop($id_shop);
-
-        return self::$main_domain_ssl[(int) $id_shop] ?? null;
+        // EduBox: dynamic public domain behind reverse proxy or direct local access.
+        $host = Tools::getHttpHost(false, false, false);
+        if (substr($host, -3) === ':80' || substr($host, -4) === ':443') {
+            $host = substr($host, 0, strrpos($host, ':'));
+        }
+        return $host;
     }
 }