Pragma
Last updated
Last updated
The Pragma is a no-cache general-type CORS-safe listed response header field in an HTTP/1.0 header which is intended to use in the request-response chain. A pragma header meant to prevent the client from caching the response, pragma means the browsers to tell the server and any intermediate caches that it wants a fresh version of the resource and vice-versa is not true.
Syntax
Directives: It is same as Cache-Control: no-cache header. It forces the caches to submit the request to the origin server for validation before releasing a cached copy.