[TYPO3-mvc] Ajax call shows hidden and deleted records

[Dirk Wenzel]

Hi all,
I got an Ajax action which is being called from frontend and routed 
through an dispatcher.
Even though I use the same methods for the query as in other non-ajax 
actions my repository returns hidden and deleted records (which it 
shouldn't).

I guess the setRespectEnableFields-Settings are not available if not in 
Frontend context.

So how can I detect whether we are in Frontend context and adjust my 
query accordingly?

Thanks in advance
Dirk