[Koha-devel] Apache 2.4 env vars

Could someone please tell me where Koha 3.18 should find $ENV{'SERVER_NAME'} and $ENV{'SERVER_PORT'} -- these are not included in the %ENV by Apache 2.4 -- required by C4/Auth.pm at line 442? DOMAIN and OPACPORT are defined in /etc/koha/koha-sites.conf and properly included in the Apache2 setup. 3.08 is coded slightly differently and doesn't give rise to a warning. The missing info does not appear to be at all fatal (just throws a "Use of uninitialized value" and gives $opac_base_url as ':') but I'm trying to get everything "squeaky clean" upstream of ZOOM Thanks -- Paul