Warum zeigt dieses XFBML-Markup, das in eine iFrame-Facebook-Anwendung eingebettet ist, nichts an?

Ich habe versucht, diese Anwendung auf Facebook zum Laufen zu bringen, aber nichts scheint in der Anwendung zu rendern, außer

"Hi this is some sample text."
A box stroked in red.  "I am My photo " and a default silhoutte of a Facebook user
as the photo.

Das Folgende ist der Quellcode des Canvas-Frames:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" 
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns=http://www.w3.org/1999/xhtml" xmlns:fb="http://www.facebook.com/2008/fbml">
<head>

    <title>Cutting Masala Chai Invitation</title>
</head>
<body>

<script type="text/javascript"
    src="http://static.ak.connect.facebook.com/js/api_lib/v0.4/FeatureLoader.js.php"></script>

Hi this is some sample text.

<fb:serverfbml style="border: 1px solid red; min-width: 700px;min-height: 400px">
    <script type="text/fbml">
        <fb:fbml>
            <fb:request-form 
                action="http://www.cuttingmasalachai.com/facebook" 
                method="POST" 
                invite="true" 
                type="Cutting Masala Chai" 
                content="&lt;fb:name uid=&quot;605869619&quot; firstnameonly=&quot;true&quot; shownetwork=&quot;false&quot; /&gt;wants to invite you share stories and vote for celebrities for the book Cutting Masala Chai,&lt;fb:req-choice url=&quot;http://apps.facebook.com/cuttingmasalachai&quot; label=&quot;Add Cutting Masala Chai&quot; /&gt;"> 
                <fb:multi-friend-selector 
                    max="20" 
                    actiontext="Invite your friends to Cutting Masala Chai." 
                    showborder="false" 
                    rows="5">
                </fb:multi-friend-selector>
            </fb:request-form>
        </fb:fbml>
    </script>

</fb:serverfbml>

I am <fb:name uid="605869619" firstnameonly="true" shownetwork="false"></fb:name>
My photo <fb:profile-pic uid="605869619"></fb:profile-pic>



<script type="text/javascript"> 
    FB_RequireFeatures(["XFBML"], function(){

        console.log('fb_requirefeatures function got called');
        FB.Facebook.init("0acf016613ca171e9665f128d318fd75", "/facebook/xd_receiver.html"); 
    });
</script>
</body>
</html>
Anwendungseinstellungen:Canvas-Modus: IFRAMECanvas-Rückruf-URL:http://www.cuttingmasalachai.com/facebookCanvas-URL:http://apps.facebook.com/cuttingmasalachaiURL zuxd_receiver.html: http://www.cuttingmasalachai.com/facebook/xd_receiver.htmlVerbindungs-URL:http://www.cuttingmasalachai.com/facebookBasisdomain:www.cuttingmasalachai.com

Ich wäre für jede Hilfe dankbar. Vielen Dank.

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