--- Original message ---
From: "Francis Daly" <francis@daoine.org>
Date: 17 September 2014, 17:29:43



> On Wed, Sep 17, 2014 at 05:22:14PM +0300, wishmaster wrote:
>
> Hi there,
>
> > My problem is still actual.
> > I am attempting to use http header from fastcgi server as part of cache key.
> > $upstream_http_x_language contains value, but empty in cache key
>
> How should that work?
>
> A request comes in to nginx.
>
> nginx creates the cache key to see if it should serve the request from
> cache, or should pass the request along to upstream and store the response
> in cache.
>
> If you try to put something into your cache key that nginx can only know
> about after the request has been passed upstream, you are going to have
> a problem.

I know how this works.
>
> > Part of cached page:
> >
> > KEY: httpGETexample.comfoto-video-audio/videoUAH
>
> > key must be
> > httpGETexample.comfoto-video-audio/videoukUAH
>
> Why does this matter?
>
> What two requests would lead to upstream sending content with a different
> language? Use whatever is different in those requests in your cache key.

At this time cache key uses $cookie_language, this works as expected. But I do not understand why with $http_ or $upstream_ does not work.

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