Do you know the valid values for http header
pragma . I understand
no-cache is a however i wnat make it possible for caching what exactly must i place it. Used to do some googleing and all sorts of which i got was most clients ignore this but no information on other values it accepts.
Remarkably there's just one parameter defined automatically, that is no-cache with no new Pragma directives is going to be defined in HTTP according to RFC.
Furthermore, you will have to make use of the Cache-Control header for controlling the caching actions as opposed to the Pragma directive which appears to become still incorporated simply to offer the legacy HTTP/1..