I am trying to log into a Rafflecopter via Facebook, for some unknown reason it has been fine up until today, when I keep getting a window pop up with the following message:
Given URL is not permitted by the Application configuration: One or more of the given URLs is not permitted by the App's settings. It must match the Website URL or Canvas URL, or the domain must be a subdomain of one of the App's domains.
I've been using this for ages, until now without any problems.
If anyone has any ideas, I would be very grateful.
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