For mod_include subrequests, the default_handler() adds a Last-Modified field to the request_rec. This is an expensive operation (due to the date/time formatting required), so I'd like to eliminate it.
Is it safe to suppress the setting of Last-Modified in default_handler() when r->main!=NULL? If there are any cases where we *would* need to set Last-Modified on a subrequest, is there a heuristic that could be used to distinguish them from the mod_include case? Thanks, --Brian
