I have a website http://elearning.biznesplus.pl/, which has some issues while being scraped by Facebook.
Domain is redirected to our web server, however facebook scraper doesn't see the content. It looks like it follows the 301 redirect, however I can't see where the redirect is coming from.
Has anyone had any familiar issues?
The page is missing some required OG tags, like og:type og:image and og:url.
If that does not work even after fetching the new information in the debugger, you should file a bug: https://developers.facebook.com/bugs/