Add unauthorized message event.

Server/Services/RCBrowserSocketHub.cs

@@ -217,6 +217,10 @@ public async Task<Task> SendScreenCastRequestToDevice(string screenCasterID, str
                 {
                     return RCDeviceHub.Clients.Client(screenCasterID).SendAsync("GetScreenCast", Context.ConnectionId, requesterName);
                 }
+                else
+                {
+                    return Clients.Caller.SendAsync("Unauthorized");
+                }
             }
             else
             {

Server/wwwroot/scripts/RemoteControl/RCBrowserSockets.ts

@@ -176,6 +176,12 @@ export class RCBrowserSockets {
             UI.ShowMessage("Connection failed.  Please reconnect.");
             this.Connection.stop();
         });
+        hubConnection.on("Unauthorized", () => {
+            UI.ConnectButton.removeAttribute("disabled");
+            UI.StatusMessage.innerHTML = "Authorization failed.";
+            UI.ShowMessage("Authorization failed.");
+            this.Connection.stop();
+        });
         hubConnection.on("ViewerRemoved", () => {
             UI.ConnectButton.removeAttribute("disabled");
             UI.StatusMessage.innerHTML = "The session was stopped by your partner.";

Server/wwwroot/scripts/RemoteControl/UI.ts

@@ -478,6 +478,7 @@ export function UpdateCursor(imageBytes: Uint8Array, hotSpotX: number, hotSpotY:
         var base64 = ConvertUInt8ArrayToBase64(imageBytes);
         ScreenViewer.style.cursor = `url('data:image/png;base64,${base64}') ${hotSpotX} ${hotSpotY}, default`;
     }
+    console.log("Cursor updated: " + ScreenViewer.style.cursor);
 }
 
 export function UpdateDisplays(selectedDisplay: string, displayNames: string[]) {