diff --git a/docker-entrypoint.sh b/docker-entrypoint.sh
index 584939e0..c84167ac 100644
--- a/docker-entrypoint.sh
+++ b/docker-entrypoint.sh
@@ -17,7 +17,7 @@ sed -i "s%{API_BASE_PATH}%$API_BASE_PATH%g" /etc/nginx/conf.d/default.conf
 if [ -z "$SERVER_NAME" ]; then
     serverName="server_name localhost;"
     sed -i '4c '"$serverName"'' /etc/nginx/conf.d/default.conf
-    sed -i '15,17d' /etc/nginx/conf.d/default.conf
+    sed -i "s%{SERVER_NAME}%\" \"%g" /etc/nginx/conf.d/default.conf
 else
     serverName="server_name $SERVER_NAME;"
     sed -i '4c '"$serverName"'' /etc/nginx/conf.d/default.conf
diff --git a/nginx.conf b/nginx.conf
index 0748177a..19664ffa 100644
--- a/nginx.conf
+++ b/nginx.conf
@@ -11,8 +11,17 @@ server {
     resolver $NAMESERVERS ipv6=off;
     root /usr/share/nginx/html;
     include /etc/nginx/mime.types;
-
+    set $my_result_code 200;
+    set $my_server_name {SERVER_NAME};
     if ($http_Host !~* ^{SERVER_NAME}) {
+        set $my_result_code 403;
+    }
+
+    if ($my_server_name ~* \s) {
+        set $my_result_code 200;
+    }
+
+    if ($my_result_code = 403) {
         return 403;
     }