Facebook Send UI renders empty window - facebook

Question

I was just about to test something so I made 2 buttons with 2 links:
1.) using the facebook sharer.php functionality which works fine
2.) triggering the send ui using the URL redirect I took from the FB developers homepage:
http://www.facebook.com/dialog/send?app_id=123050457758183&link=http://www.nytimes.com/2011/06/15/arts/people-argue-just-to-win-scholars-assert.html&redirect_uri=https://www.bancsabadell.com/cs/Satellite/SabAtl/
I replaced the app id and both links with my own. My app is set up so it point to the links, since I know I had it running once before, where that was the problem.
Now as said the share button works perfectly fine but when I click one the other button I just see a white screen. The URL is in the address bar. Firebug shows no console errors and an empty head and body tag.
Any suggestions?
Thanks,
Gerd
UPDATE: I also implemented the regular javascript ui.send method. The window popsup. I am connected with facebook as the ssl seal shows but again nothing but white.

Answer 1

As far as the URL is concerned the URL is fine it is just a matter of time until Facebook allows to share a URL it has not indexed before. When I changed the link to my main domain instead of subfolder it worked.
As far as the JS SDK is concerned I forgot to check whether the user is logged in or not so this is how it works:
<div id="fb-root"></div>
<script>
window.fbAsyncInit = function() {
FB.init({
appId : 'YourId',
xfbml : true,
version : 'v2.0'
});
};
(function(d, s, id){
var js, fjs = d.getElementsByTagName(s)[0];
if (d.getElementById(id)) {return;}
js = d.createElement(s); js.id = id;
js.src = "//connect.facebook.net/en_US/sdk.js";
fjs.parentNode.insertBefore(js, fjs);
}(document, 'script', 'facebook-jssdk'));
</script>
<button onclick="sendFb()">Recommend JS</button>
<script type="text/javascript">
function sendFb(){
FB.getLoginStatus(function(response) {
if (response.status === 'connected') {
FB.ui({
method: 'send',
link: 'yourlink.com',
});
}
else {
FB.login(function(response) {
if (response.authResponse) {
FB.ui({
method: 'send',
link: 'yourlink.com',
});
}
else
alert('Not Authenticated!');
});
}
});
}
</script>
</body>
</html>