Server Error in '/' Application.

A potentially dangerous Request.Form value was detected from the client (ctl00_mainContent_mapmapoverlays="...855878', '<div class=\"ggl_pop...").

Description: Request Validation has detected a potentially dangerous client input value, and processing of the request has been aborted. This value may indicate an attempt to compromise the security of your application, such as a cross-site scripting attack. You can disable request validation by setting validateRequest=false in the Page directive or in the configuration section. However, it is strongly recommended that your application explicitly check all inputs in this case. 

Exception Details: System.Web.HttpRequestValidationException: A potentially dangerous Request.Form value was detected from the client (ctl00_mainContent_mapmapoverlays="...855878', '<div class=\"ggl_pop...").

Source Error: 

The source code that generated this unhandled exception can only be shown when compiled in debug mode. To enable this, please follow one of the below steps, then request the URL:

1. Add a "Debug=true" directive at the top of the file that generated the error. Example:

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

or:

2) Add the following section to the configuration file of your application:

<configuration>
   <system.web>
       <compilation debug="true"/>
   </system.web>
</configuration>

Note that this second technique will cause all files within a given application to be compiled in debug mode. The first technique will cause only that particular file to be compiled in debug mode.

Important: Running applications in debug mode does incur a memory/performance overhead. You should make sure that an application has debugging disabled before deploying into production scenario.

Stack Trace: 


[HttpRequestValidationException (0x80004005): A potentially dangerous Request.Form value was detected from the client (ctl00_mainContent_mapmapoverlays="...855878', '<div class=\"ggl_pop...").]
   System.Web.HttpRequest.ValidateString(String s, String valueName, String collectionName) +398
   System.Web.HttpRequest.ValidateNameValueCollection(NameValueCollection nvc, String collectionName) +169
   System.Web.HttpRequest.get_Form() +169
   System.Web.HttpRequest.get_HasForm() +73
   System.Web.UI.Page.GetCollectionBasedOnMethod(Boolean dontReturnNull) +54
   System.Web.UI.Page.DeterminePostBackMode() +90
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +5028
   System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +390
   System.Web.UI.Page.ProcessRequest() +91
   System.Web.UI.Page.ProcessRequest(HttpContext context) +1470
   ASP.storelocator_aspx.ProcessRequest(HttpContext context) +9
   System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +586
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +177

Version Information: Microsoft .NET Framework Version:2.0.50727.8798; ASP.NET Version:2.0.50727.8762