title: @Ajax.BeginForm LoadingElementId does not work
body: <p>i am having a problem displaying the loading element in my ajax request,
  can anybody help?
  This is my code</p>
  
  <pre><code>@using (Ajax.BeginForm("Browse", "Item", new {category = "dropDownValue" }, new AjaxOptions{
    InsertionMode = InsertionMode.Replace,
    HttpMethod = "GET",
    LoadingElementId = "loader",
    UpdateTargetId = "divTable"
  }))
  {
  @Html.DropDownListFor(m =&gt; category, new SelectList(category), "--select a category--", new { @class = "form-control", onchange="this.form.submit()"})
  }
  
  
  &lt;div id="loader" style="display:none"&gt;
      Loading...&lt;img src="~/Content/gears.gif" /&gt;
  &lt;/div&gt;
  </code></pre>