I have a multi-tanent web site,
with variables availabe in ssl_certificate directive I was able to get the certificate dynacally to multple domains by just passing $host, however if the client didn't provide me with the cert, end user find ssl connection error instead of any content as the server didn't provide a cert
if there is a fall back to another file or another server configuration completly or just ssl setup that would be very handy, so user is just served with untrusted cert or a self signed one is better than no serve at all