问题
Does anyone know if the deauthorize callback works for page tab applications? I've set this in the developer settings and it doesn't seem to work.
The page in question never even gets touched. I have logging in place to see if the page is hit but nothing shows. Anyone else got this working?
Thanks
回答1:
Is the page being accessed? Check your log files to see if your callback has been hit.
Last time I inspected our process, the signed_request value was not passed, instead the callback was still receiving the value in $_REQUEST['fb_page_id'] instead. You should also see a signature value which you can use to validate the request using the pre signed_request methodology.
来源：https://stackoverflow.com/questions/8000163/deauthorize-page-tab-notification