Caching content from other handlers

[Marcus Clyne]

Hi,

I am developing a module which includes a handler that I would like to 
be able to cache the content of.

AFAIK you can only cache content passed to an upstream (using 
proxy_cache directives) or fastcgi (using fastcgi_cache directives). 

Is it possible, though, to cache content from a handler (installed by 
another module), without proxying internally (i.e. without creating two 
servers in the configuration file, with one passing to the other) yet.  
If yes, what's the API?  If not, it this a planned feature?

Thanks,

Marcus.