.load file sends parent URL to a controller in long form, including alll 
parts of the URL:   
controller_to_return_to=request.env.http_web2py_component_location

controller then does a redirect to parent

how to get the abreviated form of the URL? The original var 
controller_to_return_to looks like this when sent through the "Sure you 
want to delete?" URL: 
http://127.0.0.1:8000/ES3/default/http://127.0.0.1%3A8000/ES3/default/documentation_professional_licensing_collaborative_data_model%23comments

I had to resort to this:

    new_controller_index = max(loc for loc, val in 
enumerate(controller_to_return_to) if val == '/') # First find the last 
slash in the string
    extra_controller = controller_to_return_to[(new_controller_index+1):] 
 # strip off extra URL characters. Looks hacky.
    form = FORM.confirm('Sure you want to delete this 
comment?',{'Back':URL(extra_controller)})

better way?

thanks,

Alex Glaros

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