exclude groups from no-cache http headers ?

[z3r0]

Most browsers have developer tools in their menu's, open the developer tools and check the element headers on the network tab (there is loads of info on google on how to do it)

I've had a quick look this morning and the code from my first post does seem to work, the pragma header switches between no-cache and private the same as it does when changing the global no-cache setting.