I have installed mitmproxy with homebrew.
mitmproxy --version
Mitmproxy version: 2.0.0 (release version)
Python version: 3.6.0
Platform: Darwin-16.3.0-x86_64-i386-64bit
SSL version: OpenSSL 1.1.0e 16 Feb 2017
Mac version: 10.12.2 ('', '', '') x86_64
mitmproxy -T --host
And then point a browser at mitm.it and I see the message "If you can see this, traffic is not passing through mitmproxy." Is there a known problem or fix? If not where should I investigate?