anchor.diff:  
       # proxy_cache_valid  200 302  59m;
       # proxy_cache_valid  404      59m;
  -    proxy_cache my-cache;
  -    expires max;
  +    # proxy_cache my-cache;
  +    # expires max;
   
  -    # proxy_cache_bypass  $http_cache_control;
  +    proxy_cache_bypass  $http_cache_control;
     }
   
     location /app {
  
positive.code:   listen 443 ssl;
    server_name coder.dev;
  
    ssl_certificate /etc/nginx/ssl/nginx.crt;
    ssl_certificate_key /etc/nginx/ssl/nginx.key;
  
    client_max_body_size 50M;
    try_files $uri @coder.dev;
  
negative.code: 
      # proxy_cache_valid  200 302  59m;
      # proxy_cache_valid  404      59m;
      # proxy_cache my-cache;
      # expires max;
  
      proxy_cache_bypass  $http_cache_control;
    }
  }
  