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Showing "Spell Check Handler Server Error:500" in Firefox Browser

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Spell

This is a migrated thread and some comments may be shown as answers.

Karthik asked on 17 Apr 2012, 12:12 PM

I have using telerik spell checking. In the IE its working fine but in the firefox showing error - "Spell Check Handler Server Error:500".

The following step I have try.
I have created RadSpell folder in App_Data

I have included in Web.Config file

<httpHandlers>

<add path="Telerik.Web.UI.WebResource.axd" type="Telerik.Web.UI.WebResource" verb="*" validate="false" />

<add path="Telerik.Web.UI.DialogHandler.aspx" verb="*" type="Telerik.Web.UI.DialogHandler, Telerik.Web.UI" validate="false" />

<add path="Telerik.Web.UI.SpellCheckHandler.axd" type="Telerik.Web.UI.SpellCheckHandler" verb="*" validate="false"/>

</httpHandlers>

and

<system.webServer>

<modules runAllManagedModulesForAllRequests="true" />

<validation validateIntegratedModeConfiguration="false" />

<handlers>

<add name="Telerik_Web_UI_WebResource_axd" verb="*" preCondition="integratedMode" path="Telerik.Web.UI.WebResource.axd" type="Telerik.Web.UI.WebResource" />

<add name="ChartImage.axd_*" path="ChartImage.axd" verb="*" type="Telerik.Web.UI.ChartHttpHandler" preCondition="integratedMode" />

<add name="Telerik.Web.UI.SpellCheckHandler.axd_*" path="Telerik.Web.UI.SpellCheckHandler.axd" verb="*" type="Telerik.Web.UI.SpellCheckHandler" preCondition="integratedMode" />

<add name="Telerik.Web.UI.DialogHandler.aspx_*" path="Telerik.Web.UI.DialogHandler.aspx" verb="*" type="Telerik.Web.UI.DialogHandler" preCondition="integratedMode" />

<add name="Telerik.RadUploadProgressHandler.ashx_*" path="Telerik.RadUploadProgressHandler.ashx" verb="*" type="Telerik.Web.UI.Upload.RadUploadProgressHandler, Telerik.Web.UI" preCondition="integratedMode" />

</handlers>

</system.webServer>

In the Bin folder I have included the following DLL
Telerik.Web.Design.dll
Telerik.Web.UI.dll

Error Showing in alertbox:

Spell Check Handler Server Error:500

<html>

<head>

<title>A potentially dangerous Request.Form value was detected from the client (CommandArgument="...roke. sfd <br>").</title>

<style>

body {font-family:"Verdana";font-weight:normal;font-size: .7em;color:black;}

p {font-family:"Verdana";font-weight:normal;color:black;margin-top: -5px}

b {font-family:"Verdana";font-weight:bold;color:black;margin-top: -5px}

H1 { font-family:"Verdana";font-weight:normal;font-size:18pt;color:red }

H2 { font-family:"Verdana";font-weight:normal;font-size:14pt;color:maroon }

pre {font-family:"Lucida Console";font-size: .9em}

.marker {font-weight: bold; color: black;text-decoration: none;}

.version {color: gray;}

.error {margin-bottom: 10px;}

.expandable { text-decoration:underline; font-weight:bold; color:navy; cursor:hand; }

</style>

</head>

<body bgcolor="white">

<span><H1>Server Error in '/EmailMarketing' Application.<hr width=100% size=1 color=silver></H1>

<h2> <i>A potentially dangerous Request.Form value was detected from the client (CommandArgument="...roke. sfd <br>").</i> </h2></span>

<font face="Arial, Helvetica, Geneva, SunSans-Regular, sans-serif ">

<b> Description: </b

>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.  To allow pages to override application request validation settings, set the requestValidationMode attribute in the httpRuntime configuration section to requestValidationMode="2.0". Example: <

httpRuntime requestValidationMode="2.0"

/>. After setting this value, you can then disable request validation by setting validateRequest="false" in the Page directive or in the <

pages

> configuration section.  However, it is strongly recommended that your application explicitly check all inputs in this case.  For more information, see http://go.microsoft.com/fwlink/?LinkId=153133.

<br><br>

<b> Exception Details: </b

>System.Web.HttpRequestValidationException: A potentially dangerous Request.Form value was detected from the client (CommandArgument="...roke. sfd <

br>").<br><br>

<b>Source Error:</b> <br><br>

<table width=100% bgcolor="#ffffcc">

<tr>

<td>

<code>

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.</

code>

</td>

</tr>

</table>

<br>

<b>Stack Trace:</b> <br><br>

<table width=100% bgcolor="#ffffcc">

<tr>

<td>

<code><pre>

[HttpRequestValidationException (0x80004005): A potentially dangerous Request.Form value was detected from the client (CommandArgument="...roke. sfd <

br>").]

System.Web.HttpRequest.ValidateString(String value, String collectionKey, RequestValidationSource requestCollection) +8730676

System.Web.HttpRequest.ValidateNameValueCollection(NameValueCollection nvc, RequestValidationSource requestCollection) +122

System.Web.HttpRequest.get_Form() +114

Telerik.Web.UI.SpellCheckHandler.ProcessRequest(HttpContext context) +187

System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +100

System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +75

</pre></code>

</td>

</tr>

</table>

<br>

<hr width=100% size=1 color=silver>

<b>Version Information:</b> Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.1

</font>

</body>

</html>

<!--

[HttpRequestValidationException]: A potentially dangerous Request.Form value was detected from the client (CommandArgument="...roke. sfd <

br>").

at System.Web.HttpRequest.ValidateString(String value, String collectionKey, RequestValidationSource requestCollection)

at System.Web.HttpRequest.ValidateNameValueCollection(NameValueCollection nvc, RequestValidationSource requestCollection)

at System.Web.HttpRequest.get_Form()

at Telerik.Web.UI.SpellCheckHandler.ProcessRequest(HttpContext context)

at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()

at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

--><!--

This error page might contain sensitive information because ASP.NET is configured to show verbose error messages using <customErrors mode="Off"/>. Consider using <customErrors mode="On"/> or <customErrors mode="RemoteOnly"/> in production environments.-->

Showing "Spell Check Handler Server Error:500" in Firefox Browser

2 Answers, 1 is accepted