From Facebook Developer Wiki

this is for testing

I want to enter some fbml tags that will be replaced with the user's names etc in a textarea, how do I do that? i.e. <textarea> Hello, <fb:name uid="12345" /></textarea> does not work

Should one use Relative or Absolute urls in the action of the form?

Good question. Relative URLs can be used on forms in application tabs and canvas pages, but not in profile boxes. I'll add this to the article. Thanks, Pete (563683308 15:47, 29 May 2009 (PDT))

Is it possible to use the promptpermission form attribute with <fb:editor>? I don't want to have to convert my whole <fb:editor> form to an HTML <form> just to be able to prompt the user for granting my app permissions.