Question

I have created an invite friends code, which is properly working if an FB user is logged in.

If I remember correctly, it also worked, when there were no active fb users, in this case it simply shown a fb login page and then it went to an invitation.

Currently the ‘invite facebook friends’ link is really struggling, if there aren’t any active facebook users.

    FB.ui({
                    appId:  '"' + appId + '"',
                    method: 'apprequests',
                    display: 'iframe',
                    message: '"' + message + '"',
                    title: 'Send your friends an application request'
                },
                function (response) {
                    if (response && response.request_ids) {
                        FB.api(response.request_ids, 'delete');
                    }
                });

Did I do something wrong, or is this a bug in the Facebook invitation?

Answer 1

It seems, I got an answer on the Facebook bug site. However, it should help anybody , who has a lack of FB api knowledge . The documentation didn’t show this example:
If there aren’t any active fb session , it just open a login screen.
Finally I just realised what happened:

It doesn’t show a login screen , if you use an IFRAME.

Do not use that!!

Thank you for Noorin Ladhani.

<script>
document.getElementById('send-to-many').onclick = function() {
  FB.ui({
    method: 'apprequests',
    message: 'Visit my page'
  }, Log.info.bind('send-to-many callback'));
}
</script>