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Re: comments on draft-barth-mime-sniffing

From: Maciej Stachowiak <mjs@apple.com>
Date: Wed, 17 Jun 2009 00:15:24 -0700
Cc: Shane McCarron <shane@aptest.com>, robert@ocallahan.org, David Singer <singer@apple.com>, Ian Hickson <ian@hixie.ch>, Larry Masinter <masinter@adobe.com>, "ietf-http-wg@w3.org" <ietf-http-wg@w3.org>, public-html@w3.org
Message-id: <5BBE8107-BB56-440A-A2F2-EF09D303FB7E@apple.com>
To: Adam Barth <w3c@adambarth.com>

On Jun 16, 2009, at 11:12 PM, Adam Barth wrote:

> I think roc was specifically referring to content for the <video> tag.
> Because no such content currently exists, the legacy compatibility
> requirements are much less onerous than, say, for HTML.

I think Dave's point was that if you support codecs and containers in  
<video> that are currently supported by widely used plugins, then you  
are more likely to face these legacy issues with broken MIME types  
when deploying <video>. Content authors might well expect that already  
published MP4 files which work in the QuickTime plugin or a Flash- 
based player, should continue to work if embedded via <video>. But  
there isn't a similar volume of already-deployed Ogg Theora files  
being served with a broken MIME type, so it's not likely there would  
be a similar expectation. To be fair, though, we didn't go through the  
exercise of being stricter about types, so we can't say definitively  
if there would be complaints.

  - Maciej



>
> Adam
>
>
> On Tue, Jun 16, 2009 at 9:31 PM, Shane McCarron<shane@aptest.com>  
> wrote:
>> This is my favorite comment in this thread, bar none!  Why, oh why  
>> are you
>> all trying so hard to continue to support broken behavior instead of
>> slapping down the people who insist on doing it wrong?  If the user  
>> agents
>> (go Firefox!) just refused to sniff, then no one would send nonsense
>> content.  'cause it wouldn't work.
>>
>> Robert O'Callahan wrote:
>>>
>>> I should also point out that so far we have had approximately zero
>>> complaints from authors about the fact that Firefox doesn't sniff.
>>>
>>> Rob
>>> --
>>> "He was pierced for our transgressions, he was crushed for our  
>>> iniquities;
>>> the punishment that brought us peace was upon him, and by his  
>>> wounds we are
>>> healed. We all, like sheep, have gone astray, each of us has  
>>> turned to his
>>> own way; and the LORD has laid on him the iniquity of us  
>>> all." [Isaiah
>>> 53:5-6]
>>
>> --
>> Shane P. McCarron                          Phone: +1 763 786-8160  
>> x120
>> Managing Director                            Fax: +1 763 786-8180
>> ApTest Minnesota                            Inet: shane@aptest.com
>>
>>
>>
>
Received on Wednesday, 17 June 2009 07:16:03 GMT

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