gzip_disable and vary header

Spil Games lists at ruby-forum.com
Tue Jun 30 11:15:37 MSD 2009

Arvind Jayaprakash wrote:
> Accept-Encoding most definitely needs to go as part of Vary when gzip in
> place. While adding User-Agent to Vary seems tempting, it has a side
> effect of severely decreasing your cache-hit ratio since every
> build/patch of a browser has a different UA string.

Most defenitely true, but the alternative is having either the 
compressed or uncompressed version of a response being cached depending 
on "luck". If you want to prevent the cache-hit ratio problem, you 
should avoid using the gzip_disable feature if you ask me.

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