.entries() vs. the web

[Erik Arvidsson]

That is why you need to implement @unscopables too.
On Jun 16, 2014 7:08 PM, "Oliver Hunt" <oliver at apple.com> wrote:

> It turns out there are a number of sites (such as mobile.twitter.com)
> that are property detecting .entries on objects, and that means that
> they're breaking when Array.prototype.entries is provided.
>
> We're removing it from JSC now, until we can find a way to expose it
> without causing site breakage, although this does seem like fixing it would
> require bringing back the awful "pretend that you're undefined" horror.
>
> --Oliver
>
>
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