[Zope] New "Unauthorized" error since moving to 2.7.4, related to Session management

Hi List, To maintain Sessions between a secure and insecure environment, I have been using the following bit of code with urls containing the contents of "SESSION.token": if request.form.has_key("_ZopeId"): browser_man = session.getBrowserIdManager() browser_man.setBrowserIdCookieByForce(request.form['_ZopeId']) This worked in 2.7.3, but I just installed 2.7.4b1 (with Python2.4). Now I'm getting this error. Everything was exported from 2.7.3, then imported to 2.7.4b1. Any suggestions? Alec