There are multiple different sources that the user might want to start playing. Browser tab A/B/C (example: web radios), a music application or music service website in a tab that's not even opened yet (eg: spotify), the last video tab they opened (ex: youtube).
Whatever is the last thing that was paused should play IMHO. If nothing was paused, it should do nothing. Else, you open a pandora's box of possibly wrong choices that the user then has to close.
There are multiple different sources that the user might want to start playing. Browser tab A/B/C (example: web radios), a music application or music service website in a tab that's not even opened yet (eg: spotify), the last video tab they opened (ex: youtube).
Whatever is the last thing that was paused should play IMHO. If nothing was paused, it should do nothing. Else, you open a pandora's box of possibly wrong choices that the user then has to close.