No Cache Header On Proxy Request

Hi All,

Can someone tell me or point me to an example of how to set a no cache
header on a proxy request . Currently I have PHP application that I’m
reverse proxying to php-fpm. However when I try to post to the login
page there being cached by the CDN that I’m using. The no cache header
will fix this issue. I have been able to fix this issue on the static
pages however I cant seem to get the header working on a proxy request.

Thanks,
-Jason