Facebook has been making a lot of changes recently and for once, most of them are positive – they are adding useful features rather than confusing us with interface redesigns.
One change, announced in May, is going to affect those of us who have custom Facebook pages built with iframes. Starting October 1, 2011, all Facebook applications are going to be required to have SSL certificates. Since a custom page is considered to be a Facebook app, pages will have to fulfill this requirement.