nginx configuration tips for myrelay.page and strfry

myrelay.page-nginx-strfry

#important!
map $http_accept $upstream {
    default 127.0.0.1:8080;
    application/nostr+json 127.0.0.1:7777;
}

server {
  ...other stuff 

  location / {
    add_header 'Cache-Control' 'no-store, no-cache, must-revalidate, proxy-revalidate, max-age=0';
    if_modified_since off;
    expires off;
    etag off;
    try_files /null @$http_upgrade;
  }

  location @websocket {
    proxy_pass http://127.0.0.1:7777;
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "Upgrade";
    proxy_set_header Host $host;
    proxy_set_header X-Real-IP $remote_addr;
  }

  location @ {
    add_header Access-Control-Allow-Headers *;
    proxy_pass http://$upstream;
  }
}