I must say I agree that in general we should do something like @expose(slash=???). However, for the DataController.show method we can't really have slash=True **or** slash=False.
If slash=True, then /model/5/show won't work right, if slash=False, then /model/5/ won't work right either. Something needs to be done, maybe add this to "show" ? path = cherrypy.request.path; if path[-4] != "show" and path[-1] != "/": raise HTTPRedirect( path + "/") Or make it so you can't access the show method in two ways. If /model/5/show *never* works (maybe raise a 404 or something.. whomever wrote the DataController should know better) then we can safely set slash to True. In general, it's interesting that you mention it, I made a similar ticket in CherryPy earlier today: http://www.cherrypy.org/ticket/433 I would even submit a patch for that except I am not using CherryPy SVN. If that is fixed though, object's without an index method will never be allowed to have a trailing / :), and vice versa.
