Revert "skip forgery protection for Admin::PagesController#preview"
Revert "skip forgery protection for Admin::PagesController#preview"

This reverts commit b345b5c0d68a1df0c281bc0a5757d86f4988ce46.

LytayTOUCH/radiant,blj/radiant,LytayTOUCH/radiant,amcoder/trusty-cms,carols10cents/trusty-cms,carols10cents/trusty-cms,radiant/radiant,radiant/radiant,ahjohannessen/radiant,blj/radiant,pgharts/trusty-cms,carols10cents/trusty-cms,pgharts/trusty-cms,zflat/trusty-cms,radiant/radiant,LytayTOUCH/radiant,ahjohannessen/radiant,pgharts/trusty-cms,ahjohannessen/radiant,amcoder/trusty-cms,blj/radiant,blj/radiant,LytayTOUCH/radiant,zflat/trusty-cms,radiant/radiant,ahjohannessen/radiant,zflat/trusty-cms,carols10cents/trusty-cms,amcoder/trusty-cms,zflat/trusty-cms,amcoder/trusty-cms