[TYPO3-install] Reverse proxy SSL and Typo3

[eskiz g]

Hi,

I have the architecture below :

Clients =========NGINX REVERSE PROXY =========== TYPO3
                     https                                                             http


With new web browser refuse to mix dual content http and https, and it generates error on client sides. see. Mixed Content Blocking

I would like to know how to force typo3 to generate HTTPS link only and inform typo3 that there is a reverse proxy in front doing the SSL terminaison ?