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RE: Why Microsoft's authoritative=true won't work and is a bad idea

From: Chris Wilson <Chris.Wilson@microsoft.com>
Date: Tue, 8 Jul 2008 10:10:16 -0700
To: Ian Hickson <ian@hixie.ch>, Julian Reschke <julian.reschke@gmx.de>, HTTP Working Group <ietf-http-wg@w3.org>, "public-html@w3.org" <public-html@w3.org>
CC: "e_lawrence@hotmail.com" <e_lawrence@hotmail.com>
Message-ID: <D12127075745E648BBC075EF46983E17102BA2731B@TK5-EXMBX-W603v.wingroup.windeploy.ntdev.microsoft.com>

Ian Hickson wrote:
> This is exactly why this won't work. Sites will use this correctly,
> then someone will set some default somewhere incorrectly, or copy and
> paste a correct site somehow, or misunderstand a tutorial or something,
> and deploy it without testing in IE8. And it will work fine in all the
> browsers except IE8, an then IE8 will be patched to make this attribute
> trigger a slightly different (and smaller) set of content-sniffing


> The way out of this mess is containment. We define a strict set of
> Content-Type sniffing rules that are required to render the Web, and we
> get the browsers to converge on only sniffing for those.

Indeed.  And we're providing a way for content providers to opt out of that mess.

-Chris Wilson
Received on Tuesday, 8 July 2008 17:11:41 UTC

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