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Re: [websec] Font sniffing

Tobias Gondrom <tobias.gondrom@gondrom.org> Tue, 25 January 2011 19:31 UTC

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Date: Tue, 25 Jan 2011 19:27:21 +0000
From: Tobias Gondrom <tobias.gondrom@gondrom.org>
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Subject: Re: [websec] Font sniffing
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Anne,
Sorry, I don't understand what you mean with your comment.
AFAIK font sniffing was not the intent for the
draft-ietf-websec-mime-sniff draft.
Do you suggest to do s.th. in websec in this regard (font types) and
why/what?
- Tobias


On 01/25/2011 12:16 PM, Anne van Kesteren wrote:
> Due to nobody taking specifying media types, Content-Type for fonts is
> a lost cause. They probably need a loading context similar to images
> which the @font-face specification should use at some point.
>
> Here are the signatures that Opera handles:
>
>   0x74746366 'ttcf' (TTC; TrueType Collection)
>   0x4F54544F 'OTTO' (OTF; OpenType)
>   0x00010000        (TTF; TrueType)
>   0x774F4646 'wOFF' (WOFF; Web Open Font Format)
>
> For WOFF application/font-woff is being registered it seems, but
> nobody enforces that to my knowledge. I.e. user agents sniff.
>
>
> In case it was unclear this is feedback on
> http://tools.ietf.org/html/draft-ietf-websec-mime-sniff :-)
>
>

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