Maxim Dounin mdounin at mdounin.ru
Thu Aug 23 18:00:21 UTC 2018


On Thu, Aug 23, 2018 at 11:21:02AM +0000, Friscia, Michael wrote:

> What would be the reason that setting
> Gzip_types *;
> Is bad?

Usually there are responses which are not compressible, so trying 
to gzip them is just a waste of resources.  Also there can be 
cases when the client announces gzip support, but in fact have 
problems when some types of responses are compressed - for 
example, there were problems with compressed javascripts in some 
browsers in the past.

If you are sure that in a particular configuration all possible 
responses must be gzipped, "gzip_types *;" should be fine.  You 
may want to limit it to a particular location or server though.

> I’m running into a compression problem and if I set it to * 
> everything gzips just fine but if I list them out explicitly the 
> type image/jpeg is not being gzip’d via proxy request but all 
> others are gzip’d by proxy. Gzip_proxied is set to any.

As long as Content-Type of the response is "image/jpeg", there 
should be not difference between "gzip_types *" and "gzip_types 
image/jpeg ...".  If you see a difference, please provide more 
details - full configuration and a debug log would be ideal.

Maxim Dounin

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