Hi,

I am trying to make caching selective based on cookies set by upstream.

Example: worpress sets wordpress_test_cookie for every page, thus preventing caching of pages unless Set-Cookie headers are ignored. On the other hand, ignoring Set-Cookie in general is bad idea, as in this case when other cookies are set (like wordpress_logged_in) the response will be cached as well - and this is a security (and consistency) disaster.

What I want is to check if specific header or cookie in the *response* is set and make decision to cache or not based on this information.

Is this possible at all? I couldn't find anything (like variables) that allows to examine response for this purpose.

PS: I know that there are some "helper" plugins for wordpress, but wordpress is only one of possible applications, I need a solution that could work without application support, that is why I am interested in response examination.

Thank you!