Having strange issue with sharing of a post to Facebook. See Ticket details for URL to post. And also see Facebook Debugger:
https://developers.facebook.com/tools/debug/og/object/
Error:
"Object at URL 'https://www.opgroeigids.nl/community/stream/item/3829' of type 'article' is invalid because the given value '//http://www.opgroeigids.nl/OG_witteachtergrond_vierkant.gif' for property 'og:image:url' could not be parsed as type 'url'."
See attached.
Shared another post just before and it was fine. See:
https://www.opgroeigids.nl/community/stream/item/3829