Clickjacking/scn

Talìa l'artìculu "Clickjacking" nta Wikipedia.

If you are using HTMLForm and you want to allow framing of the form, you need to override HTMLForm's displayForm function and call ->allowClickjacking; on the overridden function.

Talìa macari

 * r79561
 * r79566
 * bug #26561
 * bug #26561