this is my goal: implement a facebook share of an IMG on user's timeline, I have a facebook app already up and running and I have a standalone js-html5 app that generate the IMG. I would like to post on user's timeline this IMG. This img has no url because the app is a standalone app, so doesn't write on server the img. I'm wondering how to make it from JS or from PHP. Any Ideas how to implement? Thanks everyone who will help me :)