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

From: Mark S. Miller <erights@google.com>
Date: Mon, 10 Feb 2014 08:55:03 -0800
Message-ID: <CABHxS9iy=AiE4BTkdhYW3DjyKLrVkGMDuhJUWr_Hk1Ms6AB=3w@mail.gmail.com>
To: Boris Zbarsky <bzbarsky@mit.edu>
Cc: "public-script-coord@w3.org" <public-script-coord@w3.org>
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.

Received on Monday, 10 February 2014 16:55:30 UTC

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