- From: Ian Hickson <ian@hixie.ch>
- Date: Wed, 8 Apr 2009 04:58:57 +0000 (UTC)
- To: Adam Barth <w3c@adambarth.com>
- Cc: Mark Nottingham <mnot@mnot.net>, =JeffH <Jeff.Hodges@kingsmountain.com>, HTTP Working Group <ietf-http-wg@w3.org>, Sam Ruby <rubys@intertwingly.net>, Chris Wilson <Chris.Wilson@microsoft.com>, Eric Lawrence <ericlaw@exchange.microsoft.com>
On Tue, 7 Apr 2009, Adam Barth wrote: > > As you might be aware, IE8 and Chrome let servers opt out of content > sniffing using a HTTP header. To be precise, they allow servers to opt out of content sniffing in certain specific cases. It doesn't affect, for instance, how the Content-Type header is treated for images (e.g. an image/png image sent as image/gif is still treated as a PNG, even with this header set, if I'm not mistaken; and Content-Type headers are entirely ignored in certain contexts like <embed> elements with explicit type="" attributes or @font-face declarations in CSS). -- Ian Hickson U+1047E )\._.,--....,'``. fL http://ln.hixie.ch/ U+263A /, _.. \ _\ ;`._ ,. Things that are impossible just take longer. `._.-(,_..'--(,_..'`-.;.'
Received on Wednesday, 8 April 2009 04:59:36 UTC