Adjust body and buffer sizes.

.platform/nginx/nginx.conf

@@ -30,6 +30,8 @@ http {
 	listen        80 default_server;
         access_log    /var/log/nginx/access.log main;
 
+        client_max_body_size 50M;
+        client_body_buffer_size 5M;
         client_header_timeout 60;
         client_body_timeout   60;
         keepalive_timeout     60;