The Apathean equivalent of Nginx `proxy_buffering off`

Question

I have an application that requires me to disable buffering in the reverse proxy. I managed to do this with the following nginx configuration:

server {
  listen       80;
  server_name  10.0.0.104;

  location / {
    proxy_buffering off;
    proxy_request_buffering off;
    proxy_http_version 1.1;
    proxy_set_header Connection "";
    proxy_pass http://http_backend;
    proxy_redirect default;
  }
}

upstream http_backend {
  server 10.0.0.86:8080;

  keepalive 16;
}

I need to have the same setup that works on Apache, but apache does not have a directive proxy_buffering off. The only configuration that I could find in the mod_proxy the docs , it is ProxyIOBufferSizeand ProxyReceiveBufferSize, but they have a minimun value instead of an option to disable buffering. I tested those, but my application fails.