Apache 2.4.54 - Caching implementing mod_cache and Dynamic Content for Specific URL Patterns
I'm attempting to set up I'm reviewing some code and I'm running Apache 2.4.54 with mod_cache enabled, and I'm working with an scenario where dynamic content for certain URL patterns is incorrectly cached, leading to stale data being served. For instance, when accessing `/api/data/latest`, I expect to receive real-time data, but I find that Apache is serving outdated responses after the initial request. I've enabled caching for this endpoint with the following configuration: ```apache <IfModule mod_cache.c> CacheQuickHandler off CacheEnable disk /api/data/latest CacheDefaultExpire 60 CacheMaxExpire 120 CacheIgnoreCacheControl On </IfModule> ``` Despite setting a short expiration time, the response still seems to be cached longer than expected. I've tried modifying the `CacheDefaultExpire` and `CacheMaxExpire` values, and although it seems to help sometimes, the question continues intermittently. I've also checked that there are no conflicting `Cache-Control` or `Expires` headers being sent from the application, which returns responses with: ```http Cache-Control: no-cache, no-store, must-revalidate Expires: 0 ``` Yet, when I inspect the responses via browser dev tools, they still show cached content. I am also using `mod_headers` to explicitly set `Cache-Control` headers, but this doesn’t seem to resolve the scenario either. ```apache <IfModule mod_headers.c> <Location /api/data/latest> Header set Cache-Control "no-cache, no-store, must-revalidate" </Location> </IfModule> ``` Is there a known scenario with mod_cache that could cause this behavior? What are best practices for caching dynamic content with Apache to ensure fresh data is always delivered? This is my first time working with Apache LTS. Thanks for any help you can provide! For context: I'm using Apache on macOS. I'd love to hear your thoughts on this.