Platform Update: User Viewport Info, Per-Post Impression Data From Pages

The most recent Facebook Developer Blog’s update announced the ability for developers to pull information about the viewport their application is being displayed in and scroll to a specific point. Pages can now grant access to their per-post impression data to applications. Facebook also recounted recent changes we’ve previously covered including the inclusion of titles, images and descriptions in posts published by Like buttons, and the introduction of a preview of these posts seen when buttons are clicked.