I have similar problem with posting Facebook’s links. When I put any link of my website – http://analiz-stihotvoreniya.ru/ – to FB’s field, the error occure: ‘403 FORBIDDEN’. Howewer, my links can be posted, but images coldn’t. I’ve tried to test my site with the help of FB Sharing Debugger, and there I was notified about warnings that should be fixed. The main warning was: ‘Inferred Property
The ‘og:image’ property should be explicitly provided, even if a value can be inferred from other tags.’ So, I added this property to my site manually, then via plugins, but all in vain. The error seems to be cached. How can I refresh these data? This problem really blows my mind.
.
