title: Javascript runtime error: "object doesn't support property or method" in Internet Explorer
body: <p>I'm using kendo grids and they work fine for the CRUD operations. Now, I wanted to add filtering by adding the <code>.Filterable()</code> option to the grid's specification. Here's some code:</p>
  
  <pre><code>&lt;div id="datagrid"&gt;
      @(Html.Kendo().Grid&lt;SustIMS.Models.ConcessionModel&gt;()
      .Name("datagrid_Concessions")
      .Columns(columns =&gt;
      {
          columns.Bound(c =&gt; c.Code).Title("Code");
          columns.Bound(c =&gt; c.Description).Title("Description");
          columns.Bound(c =&gt; c.TrafficOpeningDate).Title("Traffic Opening Date");
          columns.Bound(c =&gt; c.CreationDate).Title("Creation Date");
      })
      .HtmlAttributes(new { style = "height: 534px;" })
      .Filterable() // here's the filterable option
      .Selectable()
      .Events(e =&gt; e.Change("onChange"))
      .Pageable(pageable =&gt; pageable
          .Refresh(true))
      .DataSource(dataSource =&gt; dataSource
          .Ajax()
          .PageSize(15)
          .Read(read =&gt; read.Action("GetConcessions", "MasterData"))
      )
      )
  &lt;/div&gt;
  </code></pre>
  
  <p>The grid renders perfectly and now little filter icons show on the grid's column headers:</p>
  
  <p><img src="https://i.stack.imgur.com/AKfSh.png" alt="img"></p>
  
  <p>But when I click one, the popup opens for a half second and the error is thrown. I'm using Visual Studio 2010 and the debugger shows a popup with
  <code>javascript runtime error: object doesn't support property or method 'addBack'</code>.</p>
  
  <p>Also, it opens the file <code>kendo.all.min.js</code> with an highlight on a line of code where a method <code>addBack</code> is.</p>
  
  <p><strong>NOTE:</strong> I've tested on Chrome and Firefox and it works fine. The issue only exists when using Internet Explorer (version 11).</p>
  
  <p>Any help?</p>