Ext.Net and AjaxToolkit UpdatePanel JS error

[Tomas Voracek]

I have found out in EXT.NET version 2.1.1.14877 this JavaScript error.

Error: illegal XML character
Ext.onReady(function(){<#:anchor id="init_script" />});

The error is raised when I use EXT.NET Resource Manager and Update Panel (NET 4.0) on the same page.

<%@ Page Title="Home Page" Language="C#" MasterPageFile="~/Site.master" AutoEventWireup="true"
    CodeBehind="Default.aspx.cs" Inherits="WebExtNetTest._Default" %>
<%@ Register Assembly="Ext.Net" Namespace="Ext.Net" TagPrefix="ext" %>
<asp:Content ID="HeaderContent" runat="server" ContentPlaceHolderID="HeadContent">
</asp:Content>
<asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent">
    <ext:ResourceManager ID="ResourceManager1" runat="server">
    </ext:ResourceManager>
    <asp:ScriptManager ID="ScriptManager1" runat="server">
    </asp:ScriptManager>
    <asp:UpdatePanel ID="UpdatePanel1" runat="server">
        <ContentTemplate>
            <asp:Button ID="Button1" runat="server" Text="Button" />
        </ContentTemplate>
    </asp:UpdatePanel>
</asp:Content>

If I click on the button JavaScript error is raised.

I have tested the same thing with 1.2.0.21945 version of EXT.NET and it works fine and no JavaScript Error is raised.

In http response I can see for a new version of EXT.NET {"text":"Ext.onReady(function(){\u003c#:anchor id=\"init_script\" /\u003e} - wrong
In http response I can see for a old version of EXT.NET {"text":"Ext.onReady(function(){Ext.QuickTips.init ();} - correct