Animate function causing error

Scrolling to the top of the page with this code

$$('html,body').animate({scrollTop: 0}, 0);

causes an error:

Uncaught TypeError: $$1$1.extend is not a function

Is there any fix or workaround for that error?

animate have a bug
post an issue on gitHub

It is fixed in latest Dom7. But it useless to animate scrollTop on html,body in F7. Use scrollTop instead:

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