WebGL Client unable to free connections in NetworkServer

I have been working on a WebGL game that uses the NetworkManager. I ran into an issue where the server would stop accepting connections from the clients. I noticed that the number of times I was able to connect was one less than the Max Connections specified in my NetworkManager. It appears as if when a WebGL client disconnects from the server, the connection is not being freed up.

I made a simple project to test what was going on. Below is the code for the network manager I used to start the client and server, and the GUI I used to disconnect from the server.

Code (CSharp):

1. using UnityEngine;
2. using UnityEngine.Networking;
3. using System.Collections;
4.  
5. public class NetManager : NetworkManager
6. {
7.     public bool isClient = false;
8.  
9.     // Use this for initialization
10.     void Start ()
11.     {
12.         #if UNITY_WEBGL
13.         NetworkManager.singleton.StartClient();
14.         #else
15.         if(isClient)
16.         {
17.             NetworkManager.singleton.StartClient();
18.         }
19.         else
20.         {
21.             NetworkManager.singleton.StartServer();
22.             Debug.Log("Number of Connections: " + NetworkServer.connections.Count);
23.         }
24.         #endif
25.     }
26.  
27.     public override void OnServerConnect (NetworkConnection conn)
28.     {
29.         base.OnServerConnect (conn);
30.         Debug.Log("Number of Connections: " + NetworkServer.connections.Count);
31.     }
32.  
33. }

Code (CSharp):

1. using UnityEngine;
2. using UnityEngine.Networking;
3. using System.Collections;
4.  
5. public class ClientGUI : NetworkBehaviour
6. {
7.     [ClientCallback]
8.     void OnGUI()
9.     {
10.         Rect r = new Rect (Screen.width / 2.0f, Screen.height / 2.0f, 100, 50);
11.         if (GUI.Button (r, "Disconnect"))
12.         {
13.             NetworkManager.singleton.StopClient();
14.         }
15.     }
16. }

When you run the client from the WebGL player, the number of connections never goes down after a disconnect, but if you run the client as a standalone, the number of connections does go down after a disconnect. Is this intended, am I not disconnecting correctly in the WebGL player, or...?

 

We are having the same problem with our game, any ideas?

 

I tested this in 5.2.3p1 when I originally posted. I believe it was still happening in 5.3.1p3, but will have to confirm. I plan on downloading 5.3.2p1 this morning.

Edit: Just tested in 5.3.1p3 and 5.3.2p1. The issue still happens in both versions.

 

We are running Unity 5.3.0f4

 

I have made a video explaining the problem. If you need the project just tell me but it is pretty straight forward. I can reproduce it in both 5.3.0f4 and 5.3.2f1.

 

It is done and thanks!
https://fogbugz.unity3d.com/default.asp?768030_kc4pi3nntg6fa9lb