Couple of months ago Facebook informed that Facebook page admins should begin transitioning their Static FBML tabs to iFrame tabs.
Shortly thereafter, page admins discovered they could no longer add the Static FBML application to their fan page and, if they already had it installed, they couldn’t create new tabs.
Facebook continues to support existing installations of Static FBML, but users are finding that some FBML tags aren’t working like they used to and the also that the functionality of existing FBML tags will gradually diminish until it’s finally terminated altogether.
Now iFrames work on all Facebook pages, which basically means you can point to and load a web page from any standard server, with all JavaScript and PHP coding operational. Cool! Recently YouTube also switched over to the iFrames method to embed video in sites and it works great.
