Iframe on Facebook Fan Pages Tabs

Iframe will not be supported on facebook fab pages tab, the strange thing is only on the first load of the tab that facebook will give you an error “iframe not supported”

I really dunno is this accidentally or maybe on purpose, I just figured out that apps on Fab Pages Tab need an action from user, so then to get iframe work on tab,

  1. In your Tab Url file ex:index.php, create a href tag, that will link to “somefile.php”
    ex: Click here to begin
  2. Edit your somefile.php and insert