Hold on, trying to reproduce on show...
Update: OK, it worked Please ignore. Closing and deleting.
Update 2: Well, actually it turned out that the "culprit" was adding the IP address to whitelist of the server requesting the FB login to Facebook App Advanced tab. Re-opening the item and re-categorizing, because I feel, Tiki should support that and not fail with the login attempt when someone sets that up on the FB App side.
|No attachments for this item|