How to add an image to an event with Microdata meta tag?
Instead of using the meta element, you must use the link element (because the value is a URI): <link itemprop=”image” href=”https://stackoverflow.com/questions/24638451/image.jpg” /> This is required by HTML5 (bold emphasis mine): The meta element represents various kinds of metadata that cannot be expressed using the […] link […] elements. And it’s also explicitly required by Microdata.