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POMVC 3 Output Cache Problem
 

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    <p>ASP.Net MVC 3 RTM. I am trying to use the OutputCache attribute in an action, but doesn't appear to be working. Here is the Http Request and Response.</p> <blockquote> <pre><code>Request URL:http://localhost/MyApp/Employee.mvc/GetImage?userId=myUserId Request Method:GET Status Code:200 OK Request Headers Accept:*/* Accept-Charset:ISO-8859-1,utf-8;q=0.7,*;q=0.3 Accept-Encoding:gzip,deflate,sdch Accept-Language:en-US,en;q=0.8 Cache-Control:no-cache Connection:keep-alive Cookie:ASP.NET_SessionId=sessionIdStuff Host:localhost Pragma:no-cache Referer:http://localhost/MyApp/Employee/Review/1/Index User-Agent:Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US) </code></pre> <p>AppleWebKit/534.13 (KHTML, like Gecko) Chrome/9.0.597.98 Safari/534.13 Query String Parameters userId:myUser Response Headers Cache-Control:private, no-store, max-age=3484</p> <pre><code>Content-Length:1428 Content-Type:image/jpeg Date:Wed, 16 Feb 2011 22:59:14 GMT Expires:Wed, 16 Feb 2011 23:57:19 GMT Last-Modified:Wed, 16 Feb 2011 22:57:19 GMT Server:Microsoft-IIS/5.1 Vary:* X-AspNet-Version:4.0.30319 X-AspNetMvc-Version:3.0 X-Powered-By:ASP.NET </code></pre> </blockquote> <p>Here is the controller:</p> <pre><code> [HttpGet, OutputCache(Location= OutputCacheLocation.Client, VaryByParam="userId", Duration=3600, NoStore=true)] public FileContentResult GetImage(string userId) { byte[] result; using (var client = new WebClient()) { client.Credentials = CredentialCache.DefaultCredentials; result = client.DownloadData(string.Format(IntranetUrl, userId)); } return File(result, "image/jpeg"); } </code></pre> <p>and my View:</p> <pre><code>&lt;img alt="Employee Picture" src='@Url.Action("GetImage", "Employee", new { userId = Model.UserId, area=""})' width="75px" height="100px" /&gt; </code></pre> <p>I tried comparing with other static images that are getting cached and the only differences where these lines:</p> <blockquote> <p>Cache-Control:private, no-store, max-age=3484</p> </blockquote> <p>This is included in my action, but not in the static images. Also, the static images had an ETag, but my action response did not. </p> <p>Can anyone help why this might not be cached in the browser?</p> <p>Thanks for any help..</p>
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