Just a note that if you are using a link local IPv6 address within fe80::/10 for your proxy (ex: from an IPv6 only buildbot so that it can reach luddite IPv4 only services such as github or your buildbot master), you need to add the interface name to the `localAddr` IPv6 addresses.  Such as [fe80::2:3:5:8%enp1s0]. ... View more