diff --git a/Ooui.AspNetCore/ElementResult.cs b/Ooui.AspNetCore/ElementResult.cs
index 03f9975..4c1f0fe 100644
--- a/Ooui.AspNetCore/ElementResult.cs
+++ b/Ooui.AspNetCore/ElementResult.cs
@@ -10,11 +10,13 @@ namespace Ooui.AspNetCore
     {
         readonly Element element;
         readonly string title;
+        readonly bool disposeWhenDone;
 
-        public ElementResult (Element element, string title = "")
+        public ElementResult (Element element, string title = "", bool disposeWhenDone = true)
         {
             this.element = element;
             this.title = title;
+            this.disposeWhenDone = disposeWhenDone;
         }
 
         public override async Task ExecuteResultAsync (ActionContext context)
@@ -29,7 +31,7 @@ namespace Ooui.AspNetCore
                 element.Style.Height = GetCookieDouble (context.HttpContext.Request.Cookies, "oouiWindowHeight", 24, 480, 10000);
             }
 
-            var sessionId = WebSocketHandler.BeginSession (context.HttpContext, element);
+            var sessionId = WebSocketHandler.BeginSession (context.HttpContext, element, disposeWhenDone);
             var initialHtml = element.OuterHtml;
             var html = UI.RenderTemplate (WebSocketHandler.WebSocketPath + "?id=" + sessionId, title: title, initialHtml: initialHtml);
             var htmlBytes = Encoding.UTF8.GetBytes (html);
diff --git a/Ooui.AspNetCore/WebSocketHandler.cs b/Ooui.AspNetCore/WebSocketHandler.cs
index 03a7794..f43ae73 100644
--- a/Ooui.AspNetCore/WebSocketHandler.cs
+++ b/Ooui.AspNetCore/WebSocketHandler.cs
@@ -16,13 +16,14 @@ namespace Ooui.AspNetCore
         static readonly ConcurrentDictionary<string, PendingSession> pendingSessions =
             new ConcurrentDictionary<string, PendingSession> ();
 
-        public static string BeginSession (HttpContext context, Element element)
+        public static string BeginSession (HttpContext context, Element element, bool disposeElementWhenDone)
         {
             var id = Guid.NewGuid ().ToString ("N");
 
             var s = new PendingSession {
                 Element = element,
                 CreateTimeUtc = DateTime.UtcNow,
+                DisposeElementWhenDone = disposeElementWhenDone,
             };
 
             if (!pendingSessions.TryAdd (id, s)) {
@@ -97,7 +98,7 @@ namespace Ooui.AspNetCore
             //
             var token = CancellationToken.None;
             var webSocket = await context.WebSockets.AcceptWebSocketAsync ("ooui");
-            var session = new Ooui.WebSocketSession (webSocket, activeSession.Element, w, h, token);
+            var session = new Ooui.WebSocketSession (webSocket, activeSession.Element, activeSession.DisposeElementWhenDone, w, h, token);
             await session.RunAsync ().ConfigureAwait (false);
         }
 
@@ -105,6 +106,7 @@ namespace Ooui.AspNetCore
         {
             public Element Element;
             public DateTime CreateTimeUtc;
+            public bool DisposeElementWhenDone;
         }
     }
 }
diff --git a/Ooui/UI.cs b/Ooui/UI.cs
index a66ff59..395c817 100644
--- a/Ooui/UI.cs
+++ b/Ooui/UI.cs
@@ -95,14 +95,14 @@ namespace Ooui
             Start ();
         }
 
-        public static void Publish (string path, Func<Element> elementCtor)
+        public static void Publish (string path, Func<Element> elementCtor, bool disposeElementWhenDone = true)
         {
-            Publish (path, new ElementHandler (elementCtor));
+            Publish (path, new ElementHandler (elementCtor, disposeElementWhenDone));
         }
 
-        public static void Publish (string path, Element element)
+        public static void Publish (string path, Element element, bool disposeElementWhenDone = true)
         {
-            Publish (path, () => element);
+            Publish (path, () => element, disposeElementWhenDone);
         }
 
         public static void PublishFile (string filePath)
@@ -334,9 +334,12 @@ namespace Ooui
         {
             readonly Lazy<Element> element;
 
-            public ElementHandler (Func<Element> ctor)
+            public bool DisposeElementWhenDone { get; }
+
+            public ElementHandler (Func<Element> ctor, bool disposeElementWhenDone)
             {
                 element = new Lazy<Element> (ctor);
+                DisposeElementWhenDone = disposeElementWhenDone;
             }
 
             public Element GetElement () => element.Value;
@@ -513,8 +516,10 @@ namespace Ooui
             }
 
             Element element = null;
+            bool disposeElementWhenDone = true;
             try {
                 element = elementHandler.GetElement ();
+                disposeElementWhenDone = elementHandler.DisposeElementWhenDone;
 
 				if (element == null)
 					throw new Exception ("Handler returned a null element");
@@ -568,7 +573,7 @@ namespace Ooui
             // Create a new session and let it handle everything from here
             //
             try {
-                var session = new WebSocketSession (webSocket, element, w, h, serverToken);
+                var session = new WebSocketSession (webSocket, element, disposeElementWhenDone, w, h, serverToken);
                 await session.RunAsync ().ConfigureAwait (false);
             }
             catch (System.Net.WebSockets.WebSocketException ex) when (ex.WebSocketErrorCode == System.Net.WebSockets.WebSocketError.ConnectionClosedPrematurely) {
@@ -599,8 +604,10 @@ namespace Ooui
             lock (publishedPaths) {
                 publishedPaths.TryGetValue (elementPath, out handler);
             }
+            var disposeElementWhenDone = true;
             if (handler is ElementHandler eh) {
                 element = eh.GetElement ();
+                disposeElementWhenDone = eh.DisposeElementWhenDone;
             }
             else {
                 element = new Div ();
@@ -609,7 +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, initialWidth, initialHeight);
+            var g = new WebAssemblySession (sessionId, element, disposeElementWhenDone, initialWidth, initialHeight);
             lock (globalElementSessions) {
                 globalElementSessions[sessionId] = g;
             }
diff --git a/Ooui/WebAssemblySession.cs b/Ooui/WebAssemblySession.cs
index b7d53f4..fbe722d 100644
--- a/Ooui/WebAssemblySession.cs
+++ b/Ooui/WebAssemblySession.cs
@@ -9,7 +9,7 @@ namespace Ooui
         readonly string id;
         readonly Action<Message> handleElementMessageSent;
 
-        public WebAssemblySession (string id, Element element, double initialWidth, double initialHeight)
+        public WebAssemblySession (string id, Element element, bool disposeElementWhenDone, double initialWidth, double initialHeight)
             : base (element, initialWidth, initialHeight)
         {
             this.id = id;
diff --git a/Ooui/WebSocketSession.cs b/Ooui/WebSocketSession.cs
index 7b40e4d..b18a82c 100644
--- a/Ooui/WebSocketSession.cs
+++ b/Ooui/WebSocketSession.cs
@@ -23,7 +23,7 @@ namespace Ooui
         DateTime lastTransmitTime = DateTime.MinValue;
         readonly TimeSpan throttleInterval = TimeSpan.FromSeconds (1.0 / UI.MaxFps);
 
-        public WebSocketSession (WebSocket webSocket, Element element, double initialWidth, double initialHeight, CancellationToken serverToken)
+        public WebSocketSession (WebSocket webSocket, Element element, bool disposeElementWhenDone, double initialWidth, double initialHeight, CancellationToken serverToken)
             : base (element, initialWidth, initialHeight)
         {
             this.webSocket = webSocket;