Kerberos 401 authentication with form fallback

Hi Stanislas. Do you confirm this works for non-domain users? Like I said earlier the 401 pop up will occur for browsers who do not trust the url/hostname. I don't see how this can work for user (domain or non domain) without putting the url in the intranet trusted zone (ex IE). I understand internal users (domain) get the trusted url configured but that's not the case for non domain or external users. Are you external users trusting the url/hosname?