calling TTW @@plone.cachepurging.purge means calling only over an url ending with '/'

[yurj]

calling TTW @@plone.cachepurging.purge means calling on an url ending with '/' so this view will purge
mysite.com/myurl/
mysite.com/myurl//

but never
mysite.com/myurl (without the trailing /)

This view should purge the object url, removing the trailing /, and then the url with / appended.

[yurj]

As update, it works correctly on a site object, just the root url shows this problem. In particular the site has the VHM with a vh virtual directory.