XSS vulnerability detected in `clone` package
I found that `clone` package recently got detected with `XSS vulnerability detected`.

It would be nice to have it replaced, please check it on `npm` here: https://www.npmjs.com/package/clone

<img width="891" alt="Screenshot 2019-08-28 at 17 36 48" src="https://user-images.githubusercontent.com/693487/63848761-af150080-c9ba-11e9-93c7-4057c6e2a769.png">
