Can't Load URL: The domain of this URL isn't included in the app's domains.

Hi, I created 3 app in FB now with 2 different accounts and it keeps saying:

Can't Load URL: The domain of this URL isn't included in the app's domains. To be able to load this URL, add all domains and subdomains of your app to the App Domains field in your app settings.

When I try to connect from Easyblog/Joomla.
At App Domains I filled in "with and without" http://www.";


Any ideas here? I know it must be something on my side but I just can not figure out what :-(

Thanks