[webkit-dev] DOM methods that affect [[Prototype]]

Ryosuke Niwa rniwa at webkit.org
Thu Jan 24 13:45:28 PST 2013

On Thu, Jan 24, 2013 at 12:59 PM, Anne van Kesteren <annevk at annevk.nl>wrote:

> https://www.w3.org/Bugs/Public/show_bug.cgi?id=20567 could use input
> from the WebKit community, in particular DOM/JavaScript experts. I
> recommend reading through
> http://lists.w3.org/Archives/Public/www-dom/2012OctDec/thread.html#msg143
> and
> https://mail.mozilla.org/pipermail/es-discuss/2012-December/thread.html#27401
> to some extent first. In particular the discussion is about what
> happens to the [[Prototype]] of objects when objects are adopted and
> when document.open() is invoked. Both Gecko and IE mutate the
> [[Prototype]] and the tentative plan therefore is to align the
> standard with that.

At first glance, updating the prototype as done by Gecko and IE is the only
sensible behavior.

- R. Niwa
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