Facebook Login and Iframe redirection

Question

I am building an Facebook IFrame App. I am using the below javascript code to request user to login and allow permissions for the application, after which they are supposed

Answer 1

Thanks for your answers. I used the solution posted by McKAMEY(Facebook API: FB.Connect.requireSession issues) with few changes, and it works as intended, without showing the intermediate facebook icon page, and also it redirects after authentication to the iframe app correctly.

I have posted below the working solution in case someone needs it.

var api_key = 'xxxxxxxxxxxx';
var channel_path = './xd_receiver.htm';
var canvas_url = "http://apps.facebook.com/myappxxxx/"// ensure your canvasurl has a '/' at the end!

function Initialize() {
    FB_RequireFeatures(["Api"], function () {
        FB.Facebook.init(api_key, channel_path);
        FB.ensureInit(function () {
            FB.Connect.ifUserConnected(
        function () {
            var uid = FB.Connect.get_loggedInUser();
            if (!uid) {
                authRedirect();
                return;
            }
        },
        authRedirect);
        });

    });
}
function authRedirect() {
    //This is the Sample URL Structure for redirecting to facebook 
    //http://www.facebook.com/connect/uiserver.php?
    //app_id=XXXXXXXXXXXXX&
    //next=xxxxxxxxxx_success_url_here_XXXXXXX&
    //display=page&
    //perms=XXXXXX_comma_seperated_permissions_list_hereXXXXXX&
    //fbconnect=1&
    //method=permissions.request

    window.top.location.href = "http://www.facebook.com/connect/uiserver.php?app_id=" +  encodeURIComponent(api_key) + "&next=" + encodeURIComponent(canvas_url) + "&display=page&perms=publish_stream&fbconnect=1&method=permissions.request";
}

Initialize();