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Check your xfbml and version parameters in the FB.init call.
A specific build of an SDK (Software Development Kit) used for mobile-to-web authentication. Why "Best" Solutions Matter n8facebook3jsi7jserrore best
Which or device are you using when this string appears? Check your xfbml and version parameters in the FB
Ensure the URL where the error appears is whitelisted in your Facebook Login settings. Summary for Developers n8facebook3jsi7jserrore best
This error often triggers when a script from facebook.net is blocked by your server’s security headers. Check your .
Are you a trying to fix code or a user encountering this on a website?
If you are a developer, the "best" fix is ensuring you aren't using a deprecated version of the SDK.