Max-age=0 signifies that the response is straight away stale, and must-revalidate signifies that it will have to not be reused with no revalidation at the time it's stale — so, in combination, the semantics seem to be similar to no-cache. 0 server. Regrettably, I don't have any way to easily https://connerbxrka.blazingblog.com/36344622/the-smart-trick-of-coldfire-carts-that-nobody-is-discussing