How to check a request is subrequest or not?

[elmo1349]

Hi Piotr,

I want to define a request in nginx config file, such as,
/etc/nginx/nginx.conf.

For example:

server {

if($IS_SUBREQ){
do something
}

}

Posted at Nginx Forum: http://forum.nginx.org/read.php?2,110862,111127#msg-111127