permittedURIDomains

This constraint applies only to the host part of the URI. The constraint must be specified as a fully-qualified domain name and may specify either a host or a domain. When it specifies a domain the string will begin with a period, and matches any name that can be expanded with one or more labels to the left. Note that expanding with zero labels does not match: that is, .example.com matches host.example.com, but not example.com.