We develop OutSystems apps on top of an existing database. The database can give 2 types of errors: Functional errors and Technical errors. In mobile we can handle these errors centrally in the global exception handler. 

This is possible because we can stay on the same page. For functional errors we modify the error given by the database and show as a message on the current screen.

In web however we cannot do this because no "End" action is possible in the global exception handler. In the global exception handler you always have to move to an error page. 

So I'd like to have an "end" endpoint too in the global exception handler of webapps.