Using facebook comments inside facebook app - facebook

Question

I am trying to add a facebook comments box using the social plugin to an application which will be running inside facebook as a facebook app.
When I view the app via its url it works fine however when I view the app in the dev facebook app the comments plugin does not load. Does anyone know if this is possible or if there are any additional settings required.
I have tried setting the data-href to the url of where the app is served from and the url of the facebook app neither seem to work
<div class="fb-comments" data-href="[MYDOMAIN]” data-num-posts="30" data-width="470"></div>
The code is just the standard snippet from fb js sdk
<div id="fb-root"></div>
<script>
window.fbAsyncInit = function() {
FB.init({
appId : '[MYAPPID], // App ID
status : true, // check login status
cookie : true, // enable cookies to allow the server to access the session
xfbml : true // parse XFBML
});
FB.Canvas.setAutoGrow();
// Additional initialization code here
};
// Load the SDK Asynchronously
(function(d){
var js, id = 'facebook-jssdk', ref = d.getElementsByTagName('script')[0];
if (d.getElementById(id)) {return;}
js = d.createElement('script'); js.id = id; js.async = true;
js.src = "//connect.facebook.net/en_US/all.js";
ref.parentNode.insertBefore(js, ref);
}(document));

Answer 1

Try providing a channel file and channelUrl.
From the Facebook JavaScript SDK documentation:
"...pages that include code to communicate across frames may cause Social Plugins to show up as blank without a channelUrl..."
FB.init({
appId : 'YOUR_APP_ID', // App ID
channelUrl : '//WWW.YOUR_DOMAIN.COM/channel.html', // Channel File
status : true, // check login status
cookie : true, // enable cookies to allow the server to access the session
xfbml : true // parse XFBML
});