How do I add site-wide no-cache headers to an MVC 3 app

Question

I built a MVC3 app, the applicaiton have lot of pages, now because security issues I need to add the no-cache setup in http headers, Is any easier way to do it? if we can modify one place then it will working for entire application, it will be perfect.

Can you guys help me out?

Answer 1

How about setting the Headers inside the Application_PreSendRequestHeaders event in Global.asax?

EDIT You can use Response.Cache.SetCacheability rather than setting the Headers directly.*

void Application_PreSendRequestHeaders(Object sender, EventArgs e) {     Response.Cache.SetCacheability(HttpCacheability.NoCache); } 

Tested in Fiddler.

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Alternative way by setting the Headers manually.

void Application_PreSendRequestHeaders(Object sender, EventArgs e) {     Response.Headers.Set("Cache-Control", "no-cache"); } 

Answer 2

Alternative for those wanting method/action or class/controller wide no-cache

[OutputCache(Location = OutputCacheLocation.None)] public class HomeController : Controller { ... } 

As explained here:

OutputCacheLocation Enumeration

None : The output cache is disabled for the requested page. This value corresponds to the HttpCacheability.NoCache enumeration value.

HttpCacheability Enumeration

NoCache - Sets the Cache-Control: no-cache header....