4447f991_P_Guide___HTTP_General_Headers__HTTP_Cache_Control_Directives_HTTP_Message_Type
[Cache-Control Directive] no-store [Description] Specifies that the entire request or response should not be stored in a cache. This is used sometimes to prevent the storing of sensitive documents in caches where unauthorized people might be able to access them. However, as the HTTP standard points out, this is really a very rudimentary security measure and should not be trusted a great deal (since a malicious cache operator could simply ignore the directive.) [HTTP Message Type] 
Request or Response
R e q u e s t o r R e s p o n s e
R e s p o n s e
R e q u e s t
The TCP/IP Guide - HTTP General Headers
HTTP Message Type