Oleg Broytmann wrote: > raise "Redirect", REQUEST["BASE0"] > > is a point where you may start experimenting... Thanks, that helped: I do raise "NotModified", '' and I do get a 304 Not modified response, but I *also* get a Zope error. The correct code is apparently: RESPONSE.setStatus(304) RESPONSE.write('') raise "NotModified", '' -- Itamar S.T. itamars@ibm.net