!!! Overview
"fragment" is the [{$pagename}] [parameter] which indicates is an [OAuth 2.0] [Response_mode] where [Authorization Response] [parameters] are encoded in the in the [URI Fragment Identifiers] added to the [redirect_uri] when redirecting back to the [OAuth Client].

!! [{$pagename}] [Security Considerations]
* [Covert Redirect Vulnerability] 

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