[FEATURE] Use with client certificates

[Tsamsiyu1]

Your feature request. Please describe.
It would be awesome if you could use client certificates. This would allow to access secure webpages that are protected using a client certificate. so that no other device could access this without the certificate.

maybe there is already a way to do this but i did not find it yet.

[DenisOSVR]

+1 pretty important for security reasons