Phaser 2.3 Stock Browser crashes whith RequestAnimationFrame.stop();

[mariogarranz]

Android stock browser has a bug that causes the RAF to freeze when it loses focus, even it the tab gains focus again.

I created a workaround for this, forcing raf.stop(); and raf.start(); everytime the tab gains focus. This workaround worked fine until I updated some games to version 2.3, then it crashes games with the following error:
 

Uncaught TypeError: Property 'cancelAnimationFrame' of object [object DOMWindow] is not a function

I checked the RequestAnimationFrame update history, and nothing has changed there in version 2.3, but the same game doesn't have this bug with older versions.

Any idea on why this may be happening just with 2.3?