CODEWITHSUNDEEP
c#asp.net-mvccachingasp.net-mvc-5.2
Akash Kava
Akash Kava

Reputation: 39916

ASP.NET MVC Response.Cache VaryByHeaders

I have a controller that delivers some response and I am trying to set Cache as shown below,

if(string.Equals( Request.Query["cached"] , "true", CultureInfo.IgnoreCase)){
   Response.Cache.SetCacheability(HttpCacheability.Private);
   Response.Cache.SetMaxAge(TimeSpan.FromDays(1));
   Response.Cache.VaryByHeaders["Cookie"] = true;
}

When I see the response in Chrome, I see the header,

Cache-Control: private, max-age=86400
Vary: Accept-Encoding

Vary header is probably a default, and it is changing.

I do not want to use OutputCache because cache is enabled only for querystring parameter cached=true. When I was using ASP.NET MVC 4, I used to see response

Vary:*

And now I have upgraded my project to ASP.NET MVC 5, but its no longer working. I only want response to be cached at browser (client) based on login and cookies.

Upvotes: 1

Views: 1570

Answers (2)

Frédéric
Frédéric

Reputation: 9854

Since december 2013 you may be able to activate IIS dynamic compression without compromising vary header. Depending on your OS version, you may need to apply a hotfix.

See following kb for the hotfix. http://support.microsoft.com/kb/2877816

This information was founded on https://stackoverflow.com/a/11156510/1178314

Upvotes: 1

Akash Kava
Akash Kava

Reputation: 39916

<configuration>
   <system.webServer>
      <urlCompression 
          doStaticCompression="true" 
          doDynamicCompression="false" />
   </system.webServer>
</configuration>

Dynamic compression strips off all Vary headers, turning it off makes Vary appear correctly. But now I am dealing with how to enable Gzip for most of our requests, as there is no way to enable dynamic compression without compromising Vary header.

Upvotes: 0

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