The Cache-Control header is used to specify directives for caching mechanisms in both HTTP requests and responses.
A typical header looks like this Cache-Control: public, max-age=10
public Indicates that the response may be cached by any cache. private Indicates that the response is intended for a single user and must not be stored by a shared cache. A private cache may store the response. no-cache Forces caches to submit the request to the origin server for validation before releasing a cached copy.https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cache-Control