From Facebook Developer Wiki

Not all fbml tags can successfully render in iframe applications, for example fb:tabs, does somebody know which others?

Have you tried this method? Using_HTML_to_Imitate_XFBML? Pete (563683308 15:17, 24 August 2009 (PDT))

The site static.ak.connect.facebook.com seems to have stopped working today, but fortunately removing the 'connect' part of the URL seems to fix the problem. Therefore, I updated the docs. --1006207 02:27, 29 October 2008 (PDT)

Contents 1 Outdated List? 2 Problems rendering fb:prompt-permission 3 Improved "Rendering xFBML" paragraph 4 XHTML

Outdated List?

The list of tags was posted over 2 months ago, is it currently out of date? I was trying to figure out which tags were currently valid by going through some JavaScript source files (btw: if you know where the browser pulls these tags in from, could you help me out in this thread? http://forum.developers.facebook.com/viewtopic.php?id=25568 thx). I found this in the last two lines:

FBIntern.DataHelper.createClass(...  ...); var list = [
  FB.XFBML.$create_ElementsRegistration('fb','login-button',FB.XFBML.LoginButton),
  FB.XFBML.$create_ElementsRegistration('fb','name',FB.XFBML.Name),
  FB.XFBML.$create_ElementsRegistration('fb','pronoun',FB.XFBML.Pronoun),
  FB.XFBML.$create_ElementsRegistration('fb','serverFbml',FB.XFBML.ServerFbml),
  FB.XFBML.$create_ElementsRegistration('fb','eventLink',FB.XFBML.EventLink),
  FB.XFBML.$create_ElementsRegistration('fb','groupLink',FB.XFBML.GroupLink),
  FB.XFBML.$create_ElementsRegistration('fb','photo',FB.XFBML.Photo),
  FB.XFBML.$create_ElementsRegistration('fb','video',FB.XFBML.Video),
  FB.XFBML.$create_ElementsRegistration('fb','userLink',FB.XFBML.UserLink),
  FB.XFBML.$create_ElementsRegistration('fb','unconnected-friends-count',FB.XFBML.UnconnectedFriendsCount),
  FB.XFBML.$create_ElementsRegistration('fb','container',FB.XFBML.ContainerElement),
  FB.XFBML.$create_ElementsRegistration('fb','user-status',FB.XFBML.UserStatus),
  FB.XFBML.$create_ElementsRegistration('fb','profile-pic',FB.XFBML.ProfilePic),
  FB.XFBML.$create_ElementsRegistration('fb','prompt-permission',FB.XFBML.PromptPermission),
  FB.XFBML.$create_ElementsRegistration('fb','share-button',FB.XFBML.ShareButton),
  FB.XFBML.$create_ElementsRegistration('fb','add-section-button',FB.XFBML.AddSectionButton)];
  FB.XFBML.Host._registeredElements=(list);
  FB.FeatureLoader.singleton.onScriptLoaded(['XFBML']);

The tags that it looks like it declares here differ from those in the article text. Whats going on? --Garrett 21:54, 17 December 2008 (PST)

Problems rendering fb:prompt-permission

I cannot get it to render on my website; I can however get a few other tags to render (login-button, profile-pic, etc). I have also tried in the demo console

 *http://www.somethingtoputhere.com/demo/xfbml_console/index.html

with same dissapointing results. Am I missing something? Thanks in advance...--890240009 09:53, 18 March 2009 (PDT)

Can you paste the code from the file here for us to look at and investigate? Thanks, Pete (563683308 12:15, 18 March 2009 (PDT))

Actually I solved the problem; The fb:prompt-permission tag does not render unless you have a valid session. And because I was using the java wrapper to connect to fb, the browser had no idea about the the session from the backend. I unsucessfully tried to construct a session in the browser based on the session key from the backend, but I gave up and used the fb:login-button on my login page (I had a link pointing to http://www.facebook.com/login.php before). It now works like a charm:)

Improved "Rendering xFBML" paragraph

At least, I hope. :)--565413697 03:25, 10 August 2009 (PDT)

If what is there is an improvement, I think it needs more improvement in telling the user what and how to do it. Or else, someone didn't accept the proposed improvements. This section currently says:

 Rendering XFBML

 The following steps are needed if you want set up a Connect application or even if you want just render XFBML tag
 in your IFrame applications.

    1. Go to the Developer application and specify a Connect URL. This is the URL on your site where your Facebook
    Connect code lives (and where your XFBML gets rendered). A typical URL can be something like:
    http://mywebsite.com/php/myapp. 

Question: Where on the page at http://www.facebook.com/developers/ does one specify a Connect URL? How does one specify a Connect URL? There are no clues on that page.

XHTML

"For the user's browser to correctly recognize XFBML tags, you need to specify that the page is in XHTML."

The way to specify that a page is in XHTML is to send the content-type as "application/xhtml+xml" in the http headers and begin the page with "<?xml version=...". However, doing this will break Facebook Connect as its javascript uses document.write which doesn't work with real XHTML.

Either XFBML isn't a subset of XML, or facebook's javascript is broken - does anyone know which? 61014671 17:33, 29 September 2009 (PDT)