NOT_ACCEPTABLE returned when Accept header not present

[Snesi]

Hi,

I'm trying to integrate a Twilio webhook on our server through the feat server, but whenever Twilio sends us the request, it doesn't send an Accept header which makes f3at return a 406 NOT_ACCEPTABLE.

[Snesi]

I just created a pull request #3 that sets strict_negotiation to False. But I'd like to know if there's a way to set this option in the configuration 😃