Here’s the website of Open Graph Protocol: http://ogp.me/. Where ogp stands for Open Graph Protocol. Explanation On this website you can see all the OGP objects and it’s possible object types provided with an explanation of their purpose. The list On this website they are also talking about a global list of object types. And … Read more
Have a look at the Facebook developers page: https://developers.facebook.com/docs/reference/opengraph/object-type/article It looks like your examples 2 and 3 have incorrect formatting. None of the “article” properties should begin with “og:” Here’s what I have on one of my sites, and I get no errors from the FB debugger: <meta property=’og:type’ content=”article” /> <meta property=’article:author’ content=”https://www.facebook.com/YOUR-NAME” /> … Read more
This is a bug, and it’s confirmed, after getting the warning, if you retry the debug, or click on “Scrape Again”, the error message will be gone. This is an issue because if someone tries to share the post, the image will not show up since it didn’t get scrapped, but subsequent shares will display … Read more
OpenGraph does not support .svg as images http://indiewebcamp.com/The-Open-Graph-protocol#Does_not_support_SVG_images
Use: <!– For Google –> <meta name=”description” content=”” /> <meta name=”keywords” content=”” /> <meta name=”author” content=”” /> <meta name=”copyright” content=”” /> <meta name=”application-name” content=”” /> <!– For Facebook –> <meta property=”og:title” content=”” /> <meta property=”og:type” content=”article” /> <meta property=”og:image” content=”” /> <meta property=”og:url” content=”” /> <meta property=”og:description” content=”” /> <!– For Twitter –> <meta name=”twitter:card” … Read more