CODEWITHSUNDEEP
asp.net-mvccachingasp.net-mvc-3
B Z
B Z

Reputation: 9453

MVC 3 Output Cache Problem

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.

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)

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

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

Here is the controller:

        [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");
        }

and my View:

<img alt="Employee Picture" src='@Url.Action("GetImage", "Employee", new { userId = Model.UserId, area=""})' width="75px" height="100px" />

I tried comparing with other static images that are getting cached and the only differences where these lines:

Cache-Control:private, no-store, max-age=3484

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.

Can anyone help why this might not be cached in the browser?

Thanks for any help..

Upvotes: 2

Views: 3814

Answers (1)

langtu
langtu

Reputation: 1218

Try remove: NoStore=true (or set NoStore = false), and it'll work :)

Upvotes: 2

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