Re: [websec] font sniffing

[Adam Barth <[e-mail]>]

On Wed, Nov 9, 2011 at 9:39 AM, Peter Saint-Andre <[e-mail]> wrote:
> On 11/9/11 10:30 AM, Adam Barth wrote:
>>
>> On Wed, Nov 9, 2011 at 9:29 AM, Peter Saint-Andre<[e-mail]>
>>  wrote:
>>>
>>> On 10/25/11 12:42 AM, Tobias Gondrom wrote:
>>>>
>>>> On 25/10/11 07:30, "Martin J. Dürst" wrote:
>>>>>
>>>>> On 2011/10/25 11:34, Anne van Kesteren wrote:
>>>>>>
>>>>>> On Tue, 25 Oct 2011 10:43:25 +0900, Martin J. Dürst
>>>>>> <[e-mail]>  wrote:
>>>>>>>>
>>>>>>>> But who is at fault is not what we are interested in here I think.
>>>>>>>> We
>>>>>>>> are interested in defining when implementations have to sniff. They
>>>>>>>> very
>>>>>>>> much have to sniff for fonts.
>>>>>>>
>>>>>>> Yes. If somebody has enough energy, it would still make sense to
>>>>>>> register font types.
>>>>>>
>>>>>> Because..?
>>>>>
>>>>> - Font formats, as well as other Mime types, are not only used by Web
>>>>> browsers.
>>>>> - There may be new formats, for which no sniffing is done yet.
>>>>> - Servers may prefer to declare what they are sending out rather than
>>>>> to be silent about it, even if not all clients use that information.
>>>>> - Once we have registered types, sniffing could in the long term maybe
>>>>> even go away.
>>>>>
>>>>> Regards,   Martin.
>>>>
>>>> +1 for that.
>>>
>>> Based on discussion here and at the W3C TPAC last week, I raised this
>>> issue
>>> on the apps-discuss list:
>>>
>>> http://www.ietf.org/mail-archive/web/apps-discuss/current/msg03447.html
>>>
>>> The immediate reaction was: "do you mean fonts or typefaces?"
>>>
>>> Before taking on this work, it would be helpful to understand exactly
>>> what
>>> typographic entities are being sent around by browsers and other
>>> applications.
>>
>> Mechanically, resource representations that might get shoved into
>> @font-face rules.
>
> Based on Anne's previous message to this list [1], it seems that we're
> actually talking about font representation formats (his examples are
> TrueType Collection, OpenType, TrueType, and Web Open Font Format) instead
> of particular fonts (e.g., "12pt Georgia Bold Italic") or typefaces (e.g.,
> "Georgia").
>
> Correct?

Yep.

Adam