Continuing investigations on issue #23, still works for me.

Author: moonpyk

DevTrends.MvcDonutCaching.Demo/Controllers/HomeController.cs

@@ -51,7 +51,7 @@ public ActionResult ExpireSimpleDonutOneCache()
             return Content("OK", "text/plain");
         }
 
-        [DonutOutputCache(Duration = 60 * 5, VaryByParam = "*", VaryByCustom = "subdomain")]
+        [DonutOutputCache(CacheProfile = "medium", VaryByParam = "*", VaryByCustom = "subdomain")]
         public ActionResult TestIssue23()
         {
             return View();

DevTrends.MvcDonutCaching.Demo/Web.config

@@ -38,6 +38,14 @@
         <add namespace="System.Web.WebPages" />
       </namespaces>
     </pages>
+    <caching>
+      <outputCacheSettings>
+        <outputCacheProfiles>
+          <remove name="medium" />
+          <add name="medium" duration="600" varyByParam="*" location="Any" enabled="true" />
+        </outputCacheProfiles>
+      </outputCacheSettings>
+    </caching>
     <!-- Glimpse: This can be commented in to add additional data to the Trace tab when using WebForms
     <trace writeToDiagnosticsTrace="true" enabled="true" pageOutput="false"/> -->
     <membership defaultProvider="XmlMembershipProvider">