title: SignalR IE11 forewerFrame memory leak
body: <p>I have simple SignalR application with I hosted in IIS. When IIS is 8 from Win server 2012R2 IE11 was connected via WebSocket and everything work fine. But when I hosted on IIS 7.5 or IIsExpress 8 IE11 was connected vie forewerFrame and after 10 minutes memory consumed by IE was doubled.</p>
  
  <p>Here Is my code 
  SignalR config</p>
  
  <pre><code>public static void Configuration(IAppBuilder app)
  {
     app.MapSignalR(new HubConfiguration
     {
        EnableDetailedErrors = true,
        EnableJavaScriptProxies = true
     });
  }
  </code></pre>
  
  <p>Hub</p>
  
  <pre><code>[HubName("testHub")]
    public class TestHub : Hub
    {
      [HubMethodName("update")]
      public void Update()
      {
        Clients.All.update(new TestData
        {
          Name = "Test1",
          Date = DateTime.Now,
          Value1 = 100,
          Value2 = 200,
          Value3 = 300,
          Value4 = 400,
          Value5 = 500,
          Value6 = 600,
          Value7 = 700,
          Value8 = 800,
          Value9 = 900,
        });
      }
    }
  
    public class TestData
    {
      public string Name { get; set; }
      public DateTime Date { get; set; }
      public int Value1 { get; set; }
      public int Value2 { get; set; }
      public int Value3 { get; set; }
      public int Value4 { get; set; }
      public int Value5 { get; set; }
      public int Value6 { get; set; }
      public int Value7 { get; set; }
      public int Value8 { get; set; }
      public int Value9 { get; set; }
    }
  </code></pre>
  
  <p>View</p>
  
  <pre><code>&lt;h3&gt;Homepage&lt;/h3&gt;
  @section scripts
  {
    @Scripts.Render("~/bundles/signalR")
    &lt;script type="text/javascript" src="@Url.Content("~/signalr/hubs")"&gt;&lt;/script&gt;
    &lt;script&gt;
      $(function () {
        $.connection.testHub.on('update', function (item) { update(item); });
        $.connection.hub.start().done(function() {
          setInterval(function() { $.connection.testHub.server.update(); }, 100);
        });
      });
  
      var count = 0;
  
      function update(item) {
        count++;
        $('#count').val(count);
      }
    &lt;/script&gt; 
  }
  &lt;span&gt; count:&lt;input type="text" id="count" value="0" /&gt;&lt;/span&gt;
  </code></pre>
  
  <p>Does anybody knows what is wrong? I updated all nugets. jQuery 2.1.3, SignalR 2.2.0</p>
  
  <p>Thanks</p>