app.js is no longer cached.

NzbDrone.Api/Frontend/IAddCacheHeaders.cs

@@ -0,0 +1,31 @@
+using Nancy;
+using NzbDrone.Api.Extensions;
+using NzbDrone.Common.EnvironmentInfo;
+
+namespace NzbDrone.Api.Frontend
+{
+    public interface IAddCacheHeaders
+    {
+        void ToResponse(Request request, Response response);
+    }
+
+    public class AddCacheHeaders : IAddCacheHeaders
+    {
+        public void ToResponse(Request request, Response response)
+        {
+            if (!RuntimeInfo.IsProduction)
+            {
+                response.Headers.DisableCache();
+                return;
+            }
+
+            if (request.Url.Path.ToLower() == "app.js")
+            {
+                response.Headers.DisableCache();
+                return;
+            }
+
+            response.Headers.EnableCache();
+        }
+    }
+}