Little bug with preventDefault in jquery latest

[anonymous]

Hello, I've found a little bug with event.preventDefault. My code

$('#back-top').click( function( e ){
				$('body,html').animate({scrollTop: 0}, 800);
e.preventDefault( );
});

When I click on the #back-top in console logging this

event.returnValue is deprecated. Please use the standard event.preventDefault() instead.

[timmywil]

Duplicate of #14282.