It was already working, but today I was surprized, when I tryed to share the link, and Facebook did not show the image, from og:image meta tag.
from facebook debugger:
Meta Tag: <meta property="og:description" content="Профессиональная сеть вопросов и ответов,создаваемая и управляемая сообществом пользователей. Ресурс для тех, кто хочет знать ответы на все вопросы." />
Meta Tag: <meta property="og:title" content="Закрытое экспертное сообщество OdinOtvet" />
Meta Tag: <meta property="og:type" content="website" />
Meta Tag: <meta property="og:image" content="http://www.odinotvet.ru/images/logo_250.png" />
Meta Tag: <meta property="og:url" content="http://www.odinotvet.ru" />
Meta Tag: <meta property="og:site_name" content="ОдинОтвет" />
Meta Tag: <meta property="fb:app_id" content="286967601317982" />
Meta Tag: <meta property="fb:admins" content="100002890978393,100001666575542" />
Where is the image?
The image is appearing in the Facebook debugger (although it doesn’t look great since you’ve got some transparency which works best with your grey background which FB won’t take)
Also its best to use a square image.
One thing I’ve found it that Facebook caches the meta data on their side. So if we do changes to things like images, they don’t always surface until that cache is cleared. Perhaps you had the wrong image url/no url in the past and FB has cached that result. If so you may have to wait a while for it to clear and get your data again. I’ve seen it take a while (in the approx range of a day)