You should write false and not False in ValidateRequest="'False'" , then it works
Server Error in '/Kontaktportalen' Application.
Parser Error
Description: An error occurred during the parsing of a resource required to service this request. Please review the following specific parse error details and modify your source file appropriately.
Parser Error Message: The 'validaterequest' attribute is case sensitive and must be set to 'true' or 'false'.
Source Error:
Line 1: <%@ Page Language="C#" Inherits="CuteSoft.Chat.UI.ChatPageBase" ValidateRequest="'False'" %>
Line 2: <script runat="server">
Line 3: protected override void OnInit(EventArgs args) |
Source File: e:\inetpub\wwwroot\kontaktportalen\CuteSoft_Client\CuteChat\SaveTemplate.Aspx Line: 1
Version Information: Microsoft .NET Framework Version:1.1.4322.573; ASP.NET Version:1.1.4322.573