X-Accel-Redirect equivalent for httpd

[Chris Narkiewicz]

Hi,

Is there an equivalent or alternative for NginX X-Accel-Redirect?
https://www.nginx.com/resources/wiki/start/topics/examples/x-accel/

I'm porting a django app that checks for user's permissions before 
allowing them to download a document and this function uses 
X-Accel-Redirect to achieve this.

I'd like to move the app to OpenBSD httpd. Any idea how to
crach this problem?

Best regards,
Chris