07.12.2016, 11:04
Not yet possible, there's a draft standard whicl allows to control standby: http://boiler23.github.io/screen-wake/
And there are libraries that allow to prevent sleep on Android/iOS: https://github.com/richtr/NoSleep.js
And there are libraries that allow to prevent sleep on Android/iOS: https://github.com/richtr/NoSleep.js