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 often want to share an old email chain with a friend -- usually someone who was on on the chain in the first place. Is there an easy way to send a "link" or otherwise share that email?
Can you link a card in one board to another so you don't have to update information in two places?