Something is forcing responses to have cache-control: private in IIS7

问题

I have this in my web.config:

<system.webServer>
      <httpProtocol>
          <customHeaders>
              <clear />
              <add name="Cache-Control" value="max-age=30,public" />
          </customHeaders>
      </httpProtocol>
</system.webServer>

But when I load the page, this is the response header:

Cache-Control: private,max-age=30,public

It is an ASP.NET MVC application, the controller has no cache directives specified anywhere.

回答1:

try this

<system.web>
    <httpRuntime sendCacheControlHeader="false" /> 
 </system.web>

Let us know how it goes.

Jason

来源：https://stackoverflow.com/questions/10908115/something-is-forcing-responses-to-have-cache-control-private-in-iis7