NEW ISSUE: Content-Coding vs ETags

Hi,

...as summarized today by Sam Ruby 
(<http://intertwingly.net/blog/2007/09/30/Etag-vs-Encoding>).

My feeling is that over here there is indeed consensus that using 
Content Coding indeed is a case of server driven content-negotiation; 
but it's also pretty clear that there are places in the spec that could 
be read differently. Let's clarify those.

Related to that, it's (IMHO) also not clear at all whether you need to 
use "Vary" on the response if the request didn't contain the header 
you're varying on. My reading was that yes, you need to do so, but 
that's not what IIS7 does (which at least gets the ETag right), and as 
far as I recall, Henrik N. argued the other way in the past.

Best regards, Julian