Live streams allow users to share activity and comments in real-time during live events, such as live streaming video for concerts, sports, webcasts, etc. The XID field must have unique values entered when using more than one Live Stream block on a single page.
The minimum supported plugin width is 400px.
The "Via Atrrbiution URL" is the URL of a page to redirect users to when they click on your app name in a status post. If not specified, the ConnectURL for your application is used.