Im trying to use the facebook login from https://github.com/facebook/facebook-php-sdk
It works fine over HTTP but fails to login over HTTPS, The app page lists the login page as https://my.url.com
Both pages have a get redirect with code and state, which are the same length for the working and non working URL.
I would prefer to use https for all login pages.
By Doesnt work I mean after a successful login the token is appid|appsecret and the user returns ID of 0 instead of the actual user id which has just completed the login
Found the issue to be the Redirect URL. Code was being used from http://webcheatsheet.com/php/get_current_page_url.php
which puts the port :443 on the url. During the redirect the facebook info gets "lost"
Changing their code to allow for this fixes the problem. though with or without the :443 its still a valid URL and should really work
Have you considered using the HybridAuth library? I've always had it dump me into https on Facebook
The :443 is what tells the browser to connect over HTTPS, the default port for HTTP is 80 and 443 for HTTPS.
Perhaps the issue is something to do with Facebook having cached your domain as port 80
You can clear facebook's cache of your site, and troubleshoot other URL related problems with their official URL debugger https://developers.facebook.com/tools/debug/