[Zope] zope/proxy_pass configuration problem

Hi Zope-Configuristas! I would finally like to say goodbye to pcgi but one thing keeps me hooked. I tried and tried but the solution just won't appear. Here is the problem: I have a site that is supposed to be reachable via http as well as via https. That's not a problem per se. Configuration of zope with proxy_pass is easy as can be. The problem is that management shall be possible via https _only_ (for obvious reasons). But as soon as I use site access to define the http-branch this branch is not managable/accessable via https any more. Is there a solution? Ragnar