Hi,

We need to cache images while reverse proxy with the following settings.

location /foo {
proxy_pass http://www.example.com/foo;
proxy_set_header X-Real-IP $remote_addr;
if ($request_uri ~* \.(jpg|gif)$) {
expires 60d;
add_header Cache-Control private;
}
....

This is working if we use it without reverse proxy. I have tried $upstream_http_request_uri with no luck.

I have tried the following as well.

location /foo/images {
proxy_pass http://www.example.com;
expires 60d;
add_header Cache-Control private;
}
But it matches images in /images directory not in any other directory within the reverse proxy domain.

Please advice how do we properly set browser cache expires while we do reverse proxy.

Thanks in advance