}
server {
+ # IPv4
+ listen 80 deferred backlog=16384 reuseport fastopen=2048 default_server;
listen 443 ssl deferred backlog=16384 reuseport fastopen=2048 http2 default_server;
+ # IPv6
+ # listen [::]:80 deferred backlog=16384 reuseport fastopen=2048 default_server;
+ # listen [::]:443 ssl deferred backlog=16384 reuseport fastopen=2048 http2 default_server;
server_name localhost;
proxy_buffers 8 64k;
proxy_cache_use_stale error timeout updating http_500 http_503 http_504;
# If in cache as stale, serve stale and update in background
proxy_cache_background_update on;
+ # Enable revalidation using If-Modified-Since and If-None-Match for stale items
+ proxy_cache_revalidate on;
proxy_cache_min_uses 8;
- add_header X-Nginx-Cache-Status $upstream_cache_status;
+ add_header x-cache-status $upstream_cache_status;
<% end -%>
# Set a QoS cookie if none presented (uses nginx Map)