If the name in the
noproxy list has a leading period, it is a domain match
against the provided host name. This way ".example.com" will switch off proxy
use for both "www.example.com" as well as for "foo.example.com".
Setting the noproxy string to "" (an empty string) will explicitly enable the proxy for all host names, even if there is an environment variable set for it.
Enter IPv6 numerical addresses in the list of host names without enclosing brackets: