This needs to be fixed...
I went and open the Boonex demo: http://demo.boonex.com/
I chose to use Facebook Connect to Login.
I was taken to Facebook's App Permission Window.
I clicked "Cancel" as I did not want to continue the process... The window refreshed.
I clicked "Cancel" AGAIN and then Fb took me here: https://www.facebook.com/help/258359927634494#_=_
In this page the Fb User can "REPORT THE APP" as it does not give "the option to decline".
Best Regards,
Jos