Per foota [0]: Clients SHOULD NOT issue a conditional request during the response's freshness lifetime (e.g., upon a reload) unless explicitly overridden

Per foota [0]: Clients SHOULD NOT issue a conditional request during the response's freshness lifetime (e.g., upon a reload) unless explicitly overridden by the user (e.g., a force reload). The server is still going to serve up the resource when requested. This behavior is for the client-side of things (browser). [0]: https://news.ycombinator.com/item?id=15262108 https://news.ycombinator.com/item?id=15262108