c# - ASP.NET MVC Response.Cache VaryByHeaders -

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i have controller delivers response , trying set cache 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 see response in chrome, see header,

cache-control: private, max-age=86400 vary: accept-encoding

vary header default, , changing.

i not want use outputcache because cache enabled querystring parameter cached=true. when using asp.net mvc 4, used see response

vary:*

and have upgraded project asp.net mvc 5, no longer working. want response cached @ browser (client) based on login , cookies.

since december 2013 may able activate iis dynamic compression without compromising vary header. depending on os version, may need apply hotfix.

see following kb hotfix. http://support.microsoft.com/kb/2877816

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


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