hostname vs IP address in client

[stueja]

For me, using the hostname for the client command, as given in the examples in README.MD, does not work (neither with nor without specifying the :443)

[jan@one-arch ~]$ wstunnel -v --udp --udpTimeoutSec -1 -L 127.0.0.1:37123:127.0.0.1:37123 wss://sub.domain.tld:443
WAIT for datagrames on 127.0.0.1:37123
DEBUG :: Oppening tcp connection to sub.domain.tld:443
DEBUG :: TIMEOUT connection

Instead, specifying the IP address wss://1.2.3.4 will work.

[erebe]

I tried and domain names are working correctly for me.
Can you provide an example that I can reproduce ?