og:image doesn't work on any social network. Error "Warning Error parsing input URL, no data was cached, or no data was scraped." How to fix?

Question

PHP

Here is what I added to my page. As I understand it works for all social networks?

<meta property="og:title" content="Заголовок страницы"/>
<meta property="og:site_name" content="Название вашего сайта"/>
<meta property="og:url" content="http://урл-вашей-статьи/"/>
<meta property="og:description" content="Краткое описание статьи для ее анонса"/>
<meta property="og:image" content="http://урл-вашего-сайта/каталог-с-картинками/имя-файла-картинки.jpg"/>

Checking via https://developers.facebook.com/tools/debug/ gives "Warning Error parsing input URL, no data was cached, or no data was scraped." How can I fix it?

Answer 1

Problem very similar to yours:
stackoverflow.com/questions/25747758/facebook-erro...