There is no doubt that this is one of the most popular platforms in the world. But I have found a glitch in it. When I play a video on YouTube and I skip it to last by sliding. Then I minimize the video and play a short. After watching the short I maximize the video and play it from first by sliding. Then I close the app but it was still running in the background and I could listen the sound of the video for next five minutes even after locking my device. I decide to inform you about that.