userfront 런타임 BACKEND_URL fallback 수정

userfront/nginx.conf

@@ -21,6 +21,8 @@ log_format json_combined escape=json
 
 server {
     listen 5000;
+    absolute_redirect off;
+    port_in_redirect off;
     root /usr/share/nginx/html;
     index index.html;
     include /etc/nginx/mime.types;