On Fri, Dec 8, 2017, at 08:17, Marcel Waldvogel wrote: > As JIDs are supposed to be case-preserving, I would expect several > implementations do not downcase them first.
This is incorrect. Per RFC 7622 the localpart of a JID uses the UsernameCaseMapped profile of PRECIS defined in RFC 8265 which requires use of the Unicode toLower operation, the domainpart of course follows normal IDNA2008 rules, and the resourcepart uses the Nickname profile of PRECIS defined in RFC 8266 which also uses toLower. —Sam _______________________________________________ Standards mailing list Info: https://mail.jabber.org/mailman/listinfo/standards Unsubscribe: standards-unsubscr...@xmpp.org _______________________________________________
