IE中不显示Ajax嵌套标签容器

Question

我有以下嵌套的标签容器。 Root选项卡容器未显示在IE中，但显示在Chrome中。

<form id="form1" runat="server">
    <cc1:ToolkitScriptManager ID="ToolkitScriptManager1" runat="server">
    </cc1:ToolkitScriptManager>
    <cc1:TabContainer ID="RootTabContainer1" runat="server" ActiveTabIndex="0">
        <cc1:TabPanel ID="TabPanel1" runat="server" HeaderText="TabPanel1">
            <ContentTemplate>
                <cc1:TabContainer ID="NestedTabContainer1" runat="server">
                    <cc1:TabPanel ID="TabPanel12" runat="server" HeaderText="TabPanel12">
                    </cc1:TabPanel>
                </cc1:TabContainer>
            </ContentTemplate>
        </cc1:TabPanel>
        <cc1:TabPanel ID="TabPanel2" runat="server" HeaderText="TabPanel2">
            <ContentTemplate>
                <cc1:TabContainer ID="NestedTabContainer2" runat="server">
                    <cc1:TabPanel ID="TabPanel21" runat="server" HeaderText="TabPanel21">
                    </cc1:TabPanel>
                </cc1:TabContainer>
            </ContentTemplate>
        </cc1:TabPanel>
    </cc1:TabContainer>
    </form>