DNS Lookup on Domain Mapping Config Page

On line 388 of classes/Domainmap/Module/Pages.php you pass the domain name from the “siteurl” configuration option in the database to your configuration page, but you do not run the same parse_url() functionality which you run other times when you get this value. This leaves the options page attempting to resolve http(s)://example.com instead of just example.com which can cause a high page load time on the config page until the DNS lookup times out.