The URL you configured in your Facebook App does not match the site you're on. For example if I configured my App to use example.com/ then I tried to use FB on www.example.com/ then it would not work. This is a security implementation of Facebook.tassierambler wrote: OK, I ran the error console on Firefox 7.0.1 after clicking on both the FB Sign in and Link buttons and they both generate this error:
Error: Components.classes is undefined
Source File: chrome://jqs/content/overlay.js
Line: 9
Using Chrome, I turned on the JS Console and this message briefly flashes up:
2Unsafe JavaScript attempt to access frame with URL s-static.ak.fbcdn.net/connect/xd_proxy.php?version=3#cb=f38112b364&origin=http%3A%2F%2Fwww.tscc.org.au%2Ff720bd364&relation=opener&transport=postmessage&frame=f120fa5f4c&access_token=AAACRAZCqIIW0BACTfcYTaZBwl8a4LP0cmHqRZBr8UhokEbkpDrtXf1UVVJpDl8CaZBYiFUGZAIBksUf2rzFBenCYxke92KOmGkcfFdouutwZDZD&expires_in=3656&signed_request=of1r7v7wGVoS4vSskr616m0prV8kslj3PZrb7pNbqRE.eyJhbGdvcml0aG0iOiJITUFDLVNIQTI1NiIsImNvZGUiOiJBUUNJNTg0WVRLc0UzT0dMR1c4VWhJX1pmcXUyQUJQWGNBZXNFbUVfc05NYnZIMzdIVUptZmZWLWF1TkFhZ0dqNVVhbFZxWE43Xy12cjdaVFZmVkVCRTBmWXBuSmVSTHM2aFZzVGpfSkJaRFVJaE8yeF9CeG5oVXNCZ0lvaXJvZFFmbjk4RDZ1SGNwcFd3bmIxdVBkbi1scnBBdWYtVVZpT2VQSUhsT2V2bEEyNUxOWHU2REZFSXlDSllNd2tnRG85WXciLCJpc3N1ZWRfYXQiOjEzMjM5ODI3NDQsInVzZXJfaWQiOiI3MDc2Njg5NDEifQ from frame with URL www.tscc.org.au/ . Domains, protocols and ports must match.
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Again, you're not viewing the website at the URL you've specified in your application. Facebook is very strict about this and there's nothing I can do about it. The instructs provide for you the exact live site URL that you should have added to your application and that you view your website as. I recommend re-reading the documentation included with FBC.API Error Code: 191
API Error Description: The specified URL is not owned by the application
Error Message: Invalid redirect_uri: Given URL is not allowed by the Application configuration.
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