Unknown HTTP encoding : "br"

Hi,
I've noticed that I was unable to decrypt the traffic normally one of the requests was using the "br" encoding in the header "content-encoding" (that's what I understood). The request was in HTTP/2.0.
Can you check this ? (I was analyzing "https://www.airfrance.fr" with Cuckoo).
FYI, I post the issue here because it's httpreplay that is raising an error :)
Thank you