diff --git a/nginx/conf.d/default.conf.template b/nginx/conf.d/default.conf.template
index b99d13f..298f6af 100644
--- a/nginx/conf.d/default.conf.template
+++ b/nginx/conf.d/default.conf.template
@@ -1,6 +1,7 @@
 # ---------------------------  ENV-Key übernehmen  ---------------------------
 # envsubst ersetzt ${MEDIA_API_KEY} durch den Wert aus docker-compose.yml
 
+# --------- Preflight-Erkennung per map ---------
 map $request_method $cors_preflight {
     "OPTIONS" 1;
     default   0;
@@ -27,7 +28,9 @@ server {
 
         # --- Key-Check (nur GET/HEAD) ---
         if ($request_method != "OPTIONS") {
-            if ($http_x_api_key != "${MEDIA_API_KEY}") { return 401; }
+            if ($http_x_api_key != "${MEDIA_API_KEY}") {
+                return 401;
+            }
         }
 
         # --- CORS & Cache ---