Comment by p0w3n3d

Have you tried to watch YouTube in Chrome on android? It will turn off once switched to a other app or tab and it can be prevented. Prevented only on Firefox (with add-on). While other web pages like sound cloud will still play in background.

The only reason YouTube premium's background playing is possible as an additional feature are the limitations imposed by the Google company on the android and Chrome themselves. In other words Google built up the "open source" environment to make this exactly possible. They limited us from our phones and now they are selling features that never have been features - they were normal behaviour