!!! Overview
[{$pagename}] is a [HTTP Method] which requests a representation of the specified resource. 

Requests using [{$pagename}] should only retrieve data and should have no other effect. 

The W3C has published guidance principles on this distinction, saying, "Web application design should be informed by the above principles, but also by the relevant limitations."

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