I tested how well several web applications could be made available via SSLVPN Proxied Web Apps. Unfortunately, the majority doesn´t work.
According to Barracuda Support, there is no support at all - it either works out of the box or it doesn´t.
I fully understand that Barracuda Support cannot support any web applications.
Nevertheless, the existing documentation regarding the available options such as Custom Replacements etc. is more or less non-existant. A more detailed documentation combined with a bunch of examples (what do you see in the debug log and how do you react in the configuration to that) and a few more templates for well-known web applications would make the feature usable.
As it is, the feature is pretty useless and we´re forced to use other products/means of access.