Re: Cross-origin windows and how to explain them in ECMAScript semantics

Correct. Configurable: false is a guarantee of stability. Configurable:
true is not a guarantee of configurability; it is only the absence of
a guarantee of stability. In the absence of a guarantee, an exotic property
can still be as stable as it likes.


On Mon, Feb 10, 2014 at 8:45 AM, Boris Zbarsky <bzbarsky@mit.edu> wrote:

> On 2/10/14 11:42 AM, Tom Van Cutsem wrote:
>
>> Is the .close property observable as configurable:true?
>>
>
> I think we had all agreed that all properties on the window must be
> observable as "configurable: true", since they change on navigation.
>
> -Boris
>
> P.S.  Some of those properties, though claiming to be "configurable: true"
> still need to throw if you try to redefine them, but that should be OK as I
> understand things here.
>
>
>


-- 
    Cheers,
    --MarkM