Hi,

I found a strange behaviour in IE11 when opening a popup from a grid: immediately after the popup opens, the page with the grid gets the focus, and the popup goes to background.
This page reproduces the problem

<%@ Page Language="C#" AutoEventWireup="true" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>Test</title>
</head>
<body>
	<script runat="server">
		protected void Page_Load(object sender, EventArgs e)
		{
			if (!X.IsAjaxRequest)
			{
				storeTest.DataSource = GetData();
				storeTest.DataBind();
			}
		}

		private object[] GetData()
		{
			return new object[]
			{
				new object[] { 1, "row 1", "window.open('', 1, 'width=300, height=200');" },
				new object[] { 2, "row 2", "window.open('', 2, 'width=300, height=200');" },
				new object[] { 3, "row 3", "window.open('', 3, 'width=300, height=200');" }
			};
		}
	</script>
	<script type="text/javascript">
		function renderer_description(value, metadata, record)
		{
			return "<span onclick=\"" + record.data.ScriptOpenPopup + "\">" + record.data.Description + "</span>";
		}
	</script>
    <form id="form1" runat="server">
		<ext:ResourceManager runat="server" />
		<ext:GridPanel runat="server" Width="400" Height="200">
			<Store>
				<ext:Store ID="storeTest" runat="server">
					<Fields>
						<ext:ModelField Name="RowID" Type="Int" />
						<ext:ModelField Name="Description" Type="String" />
						<ext:ModelField Name="ScriptOpenPopup" Type="String" />
					</Fields>
				</ext:Store>
			</Store>
			<ColumnModel>
				<Columns>	
					<ext:Column runat="server" DataIndex="RowID" Text="ID" />
					<ext:Column runat="server" DataIndex="Description" Text="Element" Flex="1">
						<Renderer Fn="renderer_description" />
					</ext:Column>
				</Columns>
			</ColumnModel>
		</ext:GridPanel>
    </form>
</body>
</html>
In Chrome the popup remains in the foreground. Is this a bug? Any workarounds?
Thanks