CacheControl is a String property that contains HTTP Cache-Control general message header directives in an HTTP request or response. CacheControl indicates the behavior that prevents a cache from adversely interfering with the request or response, and generally override the default caching algorithms. 

Cache directives are unidirectional, and the presence of a directive in a HTTP request does not imply that the same directive will appear in a HTTP response. 

Some common values for CacheControl in a HTTP request include the following: 

Some common values for CacheControl in a HTTP response include the following: 

CustomHeaders 

Pragma