api - Facebook deauthorization callback is not called -

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i have fb app, when enter deauthorization callback url development box address, box pinged request after app removal on fb:

post /facebook/deauthorize http/1.1 host: bashman.org accept: */* content-length: 261 content-type: application/x-www-form-urlencoded connection: close  fb_sig_uninstall=1&fb_sig_locale=de_de&fb_sig_in_new_facebook=1&fb_sig_time=1322732591.2685&fb_sig_added=0&fb_sig_user=1476224117&fb_sig_country=de&fb_sig_api_key=e39a74891fd234bb2575bab75e8f&fb_sig_app_id=32352348363&fb_sig=f6bbb27324aedf337e5f0059c4971

(the keys fake here)

but! when enter production box url in deauthorization callback url, post request never made. tested tcpdump. no request on production machine, why?

i checked mtr route production box ip address request came from, ok, 0% packet lost.

the hostname port , path correct, tested 1k times, no firewall, ids, or other systems blocking ethernet slot.

  1. why post callback not called? (how can fix it?)

  2. how can debug determine issue is?

you can try using facebook url debugger , see if facebook's servers able reach callback url...
viewing information facebook able retrieve might debug issue.


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