How to setup nginx to follow 302

[Anatoli Marinov]

Hello colleagues,
Last week I tried to configure nginx to follow 302 through upstream instead
of relay it to the client.
My config now is like the next one:


http {
    proxy_cache_path /home/toli/nginx/run/cache keys_zone=zone_c1:256m
inactive=5d max_size=30g;

    upstream up_cdn_cache_l2 {
        server 127.0.1.1:8081 weight=100;
    }

    server {

        listen 127.0.0.1:8080;
        resolver 8.8.8.8;

        location / {
            proxy_cache zone_c1;
            proxy_pass http://127.0.1.1:8081;
            proxy_temp_path tmp;
            error_page 301 302 307 @redir;
        }

        location @redir {
            set $foo $upstream_http_location;
            proxy_pass $foo;
            proxy_cache zone_c1;
            proxy_temp_path tmp ;
        }
    }
}

With this config ginx is trying to connect to the server taken from
location header. In wireshark I found new tcp connection to it but there is
not http request over this connection and after some time 504: Gateway
Time-out is received.
So at the client site I receive "504: Gateway Time-out."

Do you have any idea why nginx dont send http request to the second server?
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