diff --git a/Ooui.AspNetCore/WebSocketHandler.cs b/Ooui.AspNetCore/WebSocketHandler.cs
index 9f88522..ac71f02 100644
--- a/Ooui.AspNetCore/WebSocketHandler.cs
+++ b/Ooui.AspNetCore/WebSocketHandler.cs
@@ -100,12 +100,14 @@ namespace Ooui.AspNetCore
             var token = CancellationToken.None;
             System.Net.WebSockets.WebSocket webSocket = null;
 
+            void Error (string m, Exception e) => activeSession?.Logger?.LogWarning (e, m);
+
             //
             // Create a new session and let it handle everything from here
             //
             try {
                 webSocket = await context.WebSockets.AcceptWebSocketAsync ("ooui").ConfigureAwait (false);
-                var session = new Ooui.WebSocketSession (webSocket, activeSession.Element, activeSession.DisposeElementAfterSession, w, h, token);
+                var session = new Ooui.WebSocketSession (webSocket, activeSession.Element, activeSession.DisposeElementAfterSession, w, h, Error, token);
                 await session.RunAsync ().ConfigureAwait (false);
             }
             catch (System.Net.WebSockets.WebSocketException ex) when (ex.WebSocketErrorCode == System.Net.WebSockets.WebSocketError.ConnectionClosedPrematurely) {
diff --git a/Ooui/Session.cs b/Ooui/Session.cs
index e873370..0f7864c 100644
--- a/Ooui/Session.cs
+++ b/Ooui/Session.cs
@@ -14,9 +14,11 @@ namespace Ooui
         protected readonly List<Message> queuedMessages = new List<Message> ();
 
         protected readonly bool disposeElementAfterSession;
+        readonly Action<string, Exception> errorLogger;
 
-        public Session (Element element, bool disposeElementAfterSession, double initialWidth, double initialHeight)
+        public Session (Element element, bool disposeElementAfterSession, double initialWidth, double initialHeight, Action<string, Exception> errorLogger)
         {
+            this.errorLogger = errorLogger;
             this.element = element;
             this.disposeElementAfterSession = disposeElementAfterSession;
             this.initialWidth = initialWidth;
@@ -85,14 +87,7 @@ namespace Ooui
 
         protected void Error (string message, Exception ex)
         {
-            Console.ForegroundColor = ConsoleColor.Red;
-            Console.WriteLine ("{0}: {1}", message, ex);
-            Console.ResetColor ();
-        }
-
-        protected void Info (string message)
-        {
-            Console.WriteLine (message);
+            errorLogger?.Invoke (message, ex);
         }
     }
 }
diff --git a/Ooui/UI.cs b/Ooui/UI.cs
index 395c817..e232702 100644
--- a/Ooui/UI.cs
+++ b/Ooui/UI.cs
@@ -573,7 +573,7 @@ namespace Ooui
             // Create a new session and let it handle everything from here
             //
             try {
-                var session = new WebSocketSession (webSocket, element, disposeElementWhenDone, w, h, serverToken);
+                var session = new WebSocketSession (webSocket, element, disposeElementWhenDone, w, h, Error, serverToken);
                 await session.RunAsync ().ConfigureAwait (false);
             }
             catch (System.Net.WebSockets.WebSocketException ex) when (ex.WebSocketErrorCode == System.Net.WebSockets.WebSocketError.ConnectionClosedPrematurely) {
@@ -616,7 +616,7 @@ namespace Ooui
             var ops = initialSize.Split (' ');
             var initialWidth = double.Parse (ops[0]);
             var initialHeight = double.Parse (ops[1]);
-            var g = new WebAssemblySession (sessionId, element, disposeElementWhenDone, initialWidth, initialHeight);
+            var g = new WebAssemblySession (sessionId, element, disposeElementWhenDone, initialWidth, initialHeight, Error);
             lock (globalElementSessions) {
                 globalElementSessions[sessionId] = g;
             }
diff --git a/Ooui/WebAssemblySession.cs b/Ooui/WebAssemblySession.cs
index 8f72a39..825b254 100644
--- a/Ooui/WebAssemblySession.cs
+++ b/Ooui/WebAssemblySession.cs
@@ -9,8 +9,8 @@ namespace Ooui
         readonly string id;
         readonly Action<Message> handleElementMessageSent;
 
-        public WebAssemblySession (string id, Element element, bool disposeElementAfterSession, double initialWidth, double initialHeight)
-            : base (element, disposeElementAfterSession, initialWidth, initialHeight)
+        public WebAssemblySession (string id, Element element, bool disposeElementAfterSession, double initialWidth, double initialHeight, Action<string, Exception> errorLogger)
+            : base (element, disposeElementAfterSession, initialWidth, initialHeight, errorLogger)
         {
             this.id = id;
             handleElementMessageSent = QueueMessage;
diff --git a/Ooui/WebSocketSession.cs b/Ooui/WebSocketSession.cs
index 4ce3ac6..fae402d 100644
--- a/Ooui/WebSocketSession.cs
+++ b/Ooui/WebSocketSession.cs
@@ -23,8 +23,8 @@ namespace Ooui
         DateTime lastTransmitTime = DateTime.MinValue;
         readonly TimeSpan throttleInterval = TimeSpan.FromSeconds (1.0 / UI.MaxFps);
 
-        public WebSocketSession (WebSocket webSocket, Element element, bool disposeElementAfterSession, double initialWidth, double initialHeight, CancellationToken serverToken)
-            : base (element, disposeElementAfterSession, initialWidth, initialHeight)
+        public WebSocketSession (WebSocket webSocket, Element element, bool disposeElementAfterSession, double initialWidth, double initialHeight, Action<string, Exception> errorLogger, CancellationToken serverToken)
+            : base (element, disposeElementAfterSession, initialWidth, initialHeight, errorLogger)
         {
             this.webSocket = webSocket;