How I fixed issue #23.

Author: moonpyk

DevTrends.MvcDonutCaching.Demo/Web.config

@@ -42,7 +42,7 @@
       <outputCacheSettings>
         <outputCacheProfiles>
           <remove name="medium" />
-          <add name="medium" duration="600" varyByParam="*" location="Any" enabled="true" />
+          <add name="medium" duration="600" varyByParam="*" location="Server" enabled="true" />
         </outputCacheProfiles>
       </outputCacheSettings>
     </caching>