Hi Bengt,

Thank you for the report!

It seems to be a GnuTLS issue with TLS 1.3 hosts[1].  There is patch
upstream but it hasn't landed in a release yet, so I think it's safer to
switch to OpenSSL.  What do you think?  I attached a patch doing just
that.

Cheers,
Clément

[1]: https://lists.gnu.org/archive/html/lynx-dev/2018-12/msg00009.html