!!! Overview
When a [OAuth Client] registers with an [Authorization Server] the [OAuth Client] must provide a [{$pagename}].

The [{$pagename}] is used when a [Resource Owner] grants Authorization to the [OAuth Client]. Following the successful [Authorization] by the [Resource Owner] at the [Authorization Server] for the [OAuth Client] for [Resource Server] the [Resource Owner] is redirected back to the [OAuth Client]'s [{$pagename}].

!! More Information
There might be more information for this subject on one of the following:
[{ReferringPagesPlugin before='*' after='\n' }]