The general question of which kind of resources HTTP URI should or should not identify has been formerly known in W3C as the issue, following its name on the list defined by the (TAG). The TAG delivered in 2005 a final answer to this issue, making the distinction between an "information resource" and a "non-information" resource dependent on the type of answer given by the server to a "GET" request:

* 2xx Success indicates resource is an information resource.
* 303 See Other