[TYPO3] disblae [globalString= IENV:HTTP_HOST = *domain.com] when logged in on backend

[Bas van der Togt]

Hello list,

I'm using in the whole setup of my site [globalString= IENV:HTTP_HOST = 
*domain.com] to let Typo3 translate the content based on hostname.

But i want to disable this when backend users are logged in. Does 
anybody knows how to to this? Your help would be great.

cheers,
Bas