Open graph can resolve relative url?

Question

I\'m adding Facebook Open Graph meta tag to my site. For example:

Does Open Gr

Answer 1

I set up an og:image tag on my website with a relative url, and even though facebook reports an error like this :

Object at URL 'http://***/' of type 'website' is invalid because the given value 'preview.png' for property 'og:image:url' could not be parsed as type 'url'.

on https://developers.facebook.com/tools/debug/og/object/, the image shows up in the preview.

So I guess this is kind of supported, at least on facebook.