no-cache In general, this directive forces caches (both proxy and browser) to submit the request to the origin server for validation before releasing a cached copy, every time. This is useful to assure that authentication is respected (in combination with public), or to maintain rigid object freshness, without sacrificing all the benefits of

May 24, 2018 Clear Cache - Chrome Web Store Clear your cache and browsing data with a single click of a button. Remove 'Pragma: No-cache', 'Cache-Control: no-c Feb 08, 2013 RFC 7234 - Hypertext Transfer Protocol (HTTP/1.1): Caching

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The Cache-Control: no-cache HTTP/1.1 header field is also intended for use in requests made by the client. It is a means for the browser to tell the server and any intermediate caches that it wants a fresh version of the resource. The Pragma: no-cache header field, defined in the HTTP/1.0 spec, has the same purpose. It, however, is only defined

http - What is the difference between no-cache and no

no-cache If the no-cache directive does not specify a field-name, then a cache MUST NOT use the response to satisfy a subsequent request without successful revalidation with the origin server. This allows an origin server to prevent caching even by caches that have been configured to return stale responses to client requests. <% Response.CacheControl = "no-cache" %>> <% Response.AddHeader "Pragma", "no-cache" %> <% Response.Expires = -1 %> I didn't read anything about placing it a second time, but better safe than sorry. If you're using ASP.Net, you can use the following code to achieve the same effect (and it works for IE and Firefox): // Stop Caching in IE Cache-Control: no-cache Private and public caches. The "public" directive indicates that the response may be cached by any cache. This can be useful if pages with HTTP authentication, or response status codes that aren't normally cacheable, should now be cached. Apr 17, 2018 · Pragma: no-cache prevents caching only when used over a secure connection. A Pragma: no-cache META tag is treated identically to Expires: -1 if used in a non-secure page. The page will be cached but marked as immediately expired. Cache-Control META HTTP-EQUIV tags are ignored and have no effect in Internet Explorer versions 4 or 5.