Rails 3.x TLD length
问题 Is there some where in Rails's configuration where I can globally set the TLD length to 2 (co.uk as an example) so request.domain and request.subdomain parse correctly without having to pass options? That is, request.domain(2), by default Rails seems to be set to 1 by default and it makes sense to be able to change this globally, however, haven't been able to find anything in the documentation. Does such a configuration option exist? 回答1: For Rails 3.0.9 and below, there's no such