+1 to using the tracker so we can narrow the scope of disagreement and
achieve closure.

On 10/15/11 5:54 PM, Adam Barth wrote:
> Yeah, I think using the issue tracker would be very helpful for making
> progress.  Ideally we'd break these issues down into small, manageable
> topics.  For example, rather than having a single issue about scope,
> we'll probably be better off with separate issues about whether
> particular things are or are not in scope.
> 
> Adam
> 
> 
> On Sat, Oct 15, 2011 at 4:52 PM, Larry Masinter <[email protected]> wrote:
>> Could we start using the IETF tracker to keep track of our conversation on 
>> the issues on MIME sniffing?
>>
>> The interaction with a "nosniff" header should be one issue.
>> The other three big issues that come to mind are
>>
>> *  "scope" (do what situations does this apply)
>>  * "opt-in case-by-case" (whether one either sniffs ALWAYS or sniffs NEVER, 
>> or whether it's more nuanced and based on expectation)
>> * "normative algorithm vs. invariants for specifications".
>>
>>
>> I'm willing to write up these issues and the sniffing ones from 
>> http://tools.ietf.org/html/draft-masinter-mime-web-info , and I hope we can 
>> capture Pete Resnick's issues as well as Alexey's.
>>
>> Larry
>>
>>
>> -----Original Message-----
>> From: [email protected] [mailto:[email protected]] On Behalf Of 
>> Tobias Gondrom
>> Sent: Sunday, October 02, 2011 2:44 PM
>> To: [email protected]
>> Cc: [email protected]
>> Subject: Re: [websec] I-D Action:draft-ietf-websec-mime-sniff-03.txt
>> Importance: Low
>>
>> <hat="individual">
>> Whether browser will implement it, can't tell. Maybe we can learn more when 
>> we progress further with the mime-sniff draft.
>>
>> I don't have a strong opinion on the nosniff header.
>> Depending on where the mime-sniff debate will lead us, it might be a way to 
>> mitigate concerns that in certain cases you really SHOULD NOT or MUST NOT 
>> (RFC2119) sniff. Well and with such a header you could enforce exactly that 
>> for your sources, without breaking other unknown things/sites - which is the 
>> main reason for many browser vendors to start do sniffing in the first place.
>> (in one way nosniff could even be a migration path to less sniffing....)
>>
>> Best regards, Tobias
>>
>>
>>
>> On 01/10/11 15:30, Phillip Hallam-Baker wrote:
>>> On Sat, Oct 1, 2011 at 2:47 AM, Adam Barth<[email protected]>  wrote:
>>>> On Fri, Sep 30, 2011 at 10:14 PM, "Martin J. Dürst"
>>>> <[email protected]>  wrote:
>>>>> On 2011/09/29 11:45, Adam Barth wrote:
>>>>>> On Wed, Sep 28, 2011 at 5:44 PM, "Martin J. Dürst"
>>>>>> <[email protected]>    wrote:
>>>>>>> On 2011/09/29 8:26, Adam Barth wrote:
>>>>>>>> As I recall, the nosniff directive is pretty controversial.
>>>>>>> But then, as I recall, the whole business of sniffing is pretty
>>>>>>> controversial to start with. Are there differences between the
>>>>>>> controversiality of sniffing as such and the controversiality of
>>>>>>> the nosniff directive that explain why one is in the draft and the
>>>>>>> other is not?
>>>>>> The reason why one is in and the other isn't is just historical.
>>>>>> nosniff didn't exist at the time the document was originally written.
>>>>> Your first answer sounded as if the nosniff directive was too
>>>>> controversial to be included in any draft, but your second answer
>>>>> seems to suggest that it was left out by (historical) accident, and
>>>>> that it might be worth to include it.
>>>> The essential question isn't whether we should include it in the
>>>> draft.  The essential question is whether folks want to implement it.
>>>> If no one wants to implement it, putting it in the draft is a
>>>> negative.  If folks want to implement, then we can deal with the
>>>> controversy.
>>> +1
>>>
>>> The controversy seems to be of the 'cut off nose to spite face'
>>> variety. Sniffing is definitely terrible from a security perspective
>>> but people do it. Java and Java Script were terrible as well but
>>> people did them and then left the rest of us with a mess that had to
>>> be fixed slowly over then next ten years.
>>>
>>> Sure this is not something we should have to think about but the fact
>>> is that the browsers do it and it is better for the standards to
>>> describe what the browsers actually do than what people think they
>>> should do.
>>>
>>>
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