#245 adding resolver to fix lookup of "app" container

examples/nginx_subpath/nginx.conf

@@ -40,6 +40,7 @@ http {
     server {
         listen 80 default_server;
         server_name _;
+        resolver 127.0.0.11; # see https://github.com/docker/compose/issues/3412
 
         location ~ ^/nicegui/(.*)$ {
             proxy_http_version 1.1;