Github user mitchell852 commented on a diff in the pull request: https://github.com/apache/incubator-trafficcontrol/pull/243#discussion_r99145205 --- Diff: traffic_ops/app/lib/UI/DeliveryService.pm --- @@ -78,7 +78,8 @@ sub get_cdn_domain { distinct => 1 } )->get_column('value')->single(); - return $cdn_domain; + # Always return a lowercase FQDN. + return lc($cdn_domain); --- End diff -- does it make sense to lowercase the response from these methods too? https://github.com/elsloo/incubator-trafficcontrol/blob/master/traffic_ops/app/lib/MojoPlugins/DeliveryService.pm#L213 https://github.com/elsloo/incubator-trafficcontrol/blob/master/traffic_ops/app/lib/MojoPlugins/DeliveryService.pm#L230
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