Cache vs expires time

[Andrei]

Hello!

Thanks again for the pointers. I have caching enabled, and the purpose of
this is to set different expire times based on the request (if it's
cacheable). So I have 3 locations: 1 for frontpage, 1 for dynamic pages and
another for static content. I can't use your example though because it will
ignore those headers even for requests which shouldn't be cached, hence the
$skip_cache variable check. Is there a way to tie checking a variable value
to the ignore headers method?

On Wed, Jan 9, 2019, 19:00 Maxim Dounin <mdounin at mdounin.ru> wrote:

> Hello!
>
> On Tue, Jan 08, 2019 at 09:55:30AM +0200, Andrei wrote:
>
> > Is there a way to conditionally use proxy_ignore_headers? I'm trying to
> > only ignore headers for requests which have $skip_cache = 0 for example
>
> If you want different proxy_ignore_headers settings for
> different requests, you have to use different location{} blocks
> for these requests.  You can do so either by using distinct
> path-based locations, or by conditionally routing some requests to
> a different location (e.g., with the "rewrite" directive).
>
> In the particular case of requests to /abc, consider something
> like this:
>
>     location = /abc {
>         proxy_pass ...
>         proxy_cache ...
>         proxy_ignore_headers Expires Cache-Control;
>         proxy_cache_valid 5m;
>     }
>
> Note well that it makes little to no sense to only ignore Expires
> and Cache-Control on cached requests, since these headers are only
> used by nginx for caching.  If caching is not used, these headers
> are ignored anyway.  See http://nginx.org/r/proxy_ignore_headers
> for details.
>
> --
> Maxim Dounin
> http://mdounin.ru/
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> nginx mailing list
> nginx at nginx.org
> http://mailman.nginx.org/mailman/listinfo/nginx
>
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