diff --git a/MediaBrowser.Controller/Entities/Folder.cs b/MediaBrowser.Controller/Entities/Folder.cs
index bb3d4f73d..c1728ce38 100644
--- a/MediaBrowser.Controller/Entities/Folder.cs
+++ b/MediaBrowser.Controller/Entities/Folder.cs
@@ -13,6 +13,7 @@ using System.Threading;
 using System.Threading.Tasks;
 using CommonIO;
 using MediaBrowser.Controller.Channels;
+using MediaBrowser.Controller.Entities.TV;
 using MediaBrowser.Model.Channels;
 
 namespace MediaBrowser.Controller.Entities
@@ -882,6 +883,15 @@ namespace MediaBrowser.Controller.Entities
                 return true;
             }
 
+            if (query.IsPlayed.HasValue)
+            {
+                if (query.IncludeItemTypes.Length == 1 && query.IncludeItemTypes.Contains(typeof(Series).Name))
+                {
+                    Logger.Debug("Query requires post-filtering due to IsPlayed");
+                    return true;
+                }
+            }
+
             return false;
         }
 
diff --git a/MediaBrowser.Server.Implementations/HttpServer/HttpListenerHost.cs b/MediaBrowser.Server.Implementations/HttpServer/HttpListenerHost.cs
index 5cf0a246f..90055d8ec 100644
--- a/MediaBrowser.Server.Implementations/HttpServer/HttpListenerHost.cs
+++ b/MediaBrowser.Server.Implementations/HttpServer/HttpListenerHost.cs
@@ -81,6 +81,7 @@ namespace MediaBrowser.Server.Implementations.HttpServer
                 {typeof (ApplicationException), 500}
             };
 
+            HostConfig.Instance.GlobalResponseHeaders = new Dictionary<string, string>();
             HostConfig.Instance.DebugMode = false;
 
             HostConfig.Instance.LogFactory = LogManager.LogFactory;