Question

nginx seems to be replacing the Connection: close header that upstream is sending, and replacing it with a Connection: keep-alive header. Is there any way I can override it?

http {
  upstream main {
    server 127.0.0.1:8000;
  }
  server {
    listen 443;
    ssl on;
    ssl_certificate server.crt;
    ssl_certificate_key server.key;
    location / {
      proxy_pass http://main;
    }
    location /find {
      proxy_pass http://main;
      proxy_buffering off;
    }
  }
}

Answer 1

Setting keepalive_requests 0; convinced nginx to send Connection: close.