I am curious how Facebook selects a substitute image, when the one specified in <meta property="og:image" /> is considered invalid according to the linter. It is said that if og:image is missing ...
I have a blog on Wordpress.com. I would like to have it set up in such a way that when I make a post on the blog, I can select an image that I want associated with that post so that every time someone ...
I posted (uploaded) a few photos to an event I created a few weeks back, and the wall happily shows thumbnails of all the photos posted. But I've just tried to do post (upload) the same photos to ...