Similar to the NoCache option. Clients receive a Cache-Control: no-cache directive but the document is cached on the origin server. Equivalent to ServerAndNoCache. ServerAndNoCache Applies the settings of both Server and NoCache to indicate that the content is cached at the server but all others are explicitly denied the ability to cache the …

https://stackoverflow.com/questions/31719874/what-is-difference-between-httpcacheability-nocache-and-httpcacheability-servera