window.open return type

[JirkaDellOro]

In the lib.d.ts I found, that the return type of the window.open method is declared as any. Shouldn't it be Window?

[RyanCavanaugh]

@zhengbli can you confirm?

[zhengbli]

The reason it is any now is that technically it returns a WindowProxy object, for which the XML spec does have a definition.
However according to the W3 spec:

As mentioned earlier, each browsing context has a WindowProxy object. This object is unusual in that it must proxy all operations to the Window object of the browsing context's active document. It is thus indistinguishable from that Window object in every way, except that it is not equal to it.

So it might be ok to use window instead in lib.d.ts