This patch allows video content to continue playing when the screen is minimized, dimmed or off in WebOS 3.0.0
This behaves similar to the same patch for WebOS 2.x. The only difference is the video in the card blacks out when minimized. The audio keeps playing.
This patch only applies to videos played in the conventional 'video player' app. What's odd is there's no icon to launch the 'video player' app. It doesn't affect any video opened via the 'photo & videos' app. The patch doesn't apply to streamed videos since the default behavior for the browser is to continue playing audio in card mode.