Facebook Error during retrieving of permissions

Hi

I need a channel that is connected to a facebook page. It has worked in the past, but I suppose Facebook has schanged somenthing, so I have deleted the channel and the user and started from scratch.
I login using Facebook to create the User map. Then I start creating the channel. Then I need to login again to retrieve the 'pages_show_list' permission, but here it fails.
It loads facebook, but then shows an error with the following message:
"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."

I have checked the domains on the facebook app, and it is listed in there...

Is there anything I have missed?

Do you need any more information?

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