Nginx behind SSL Offloader

Hi,

i have a Nginx server behind a SSL Offloader device. Flow is then:
Browser with https to SSL Offloader, SSL Offloader with http to nginx server.

My Nginx server is listening on port 80. When i request a location without a trailing slash (for example: https://www.domain.com/location ) then nginx sends a 301 Redirect to: http://www.domain.com/location/

Nginx is not aware off the https usage of the browser and ssl offloaded bij my ssl device.

Any idea how i can fix this?

Regards,
MvdMeer