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Telerik.Web.UI.InsecureExternalStyleSheetException

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ScriptManager and StyleSheetManager
This is a migrated thread and some comments may be shown as answers.
Kori
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Kori asked on 07 Apr 2016, 02:15 PM

Hi,

I'm starting to profile my site locally (using http://www.prefix.io/) and I see the following exceptions that I can't seem to control:

Telerik.Web.UI.InsecureExternalStyleSheetException: empty string
  at Telerik.Web.UI.ExternalScriptHelper.ResolveSecurePath
  at Telerik.Web.UI.RadScriptManager.OnResolveScriptReference

System.ArgumentException: Illegal characters in path.
  at System.IO.Path.CheckInvalidPathChars
  at System.Security.Permissions.FileIOPermission.QuickDemand
  at System.IO.Path.GetFullPath
  at System.Web.Util.FileUtil.IsSuspiciousPhysicalPath
  at System.IO.Path.CheckInvalidPathChars
  at System.Security.Permissions.FileIOPermission.CheckIllegalCharacters
  at System.Security.Permissions.FileIOPermission.AddPathList
  at System.Security.Permissions.FileIOPermission..ctor
  at System.Web.InternalSecurityPermissions.PathDiscovery
  at System.Web.HttpRequest.MapPath
  at System.Web.HttpServerUtility.MapPath
  at Telerik.Web.UI.ExternalScriptHelper.ResolveSecurePath
  at Telerik.Web.UI.RadScriptManager.OnResolveScriptReference
  at System.IO.Path.CheckInvalidPathChars
  at System.Security.Permissions.FileIOPermission.QuickDemand
  at System.IO.Path.GetFullPath
  at System.Web.Util.FileUtil.IsSuspiciousPhysicalPath
  at System.IO.Path.CheckInvalidPathChars
  at System.Security.Permissions.FileIOPermission.CheckIllegalCharacters
  at System.Security.Permissions.FileIOPermission.AddPathList
  at System.Security.Permissions.FileIOPermission..ctor
  at System.Web.InternalSecurityPermissions.PathDiscovery
  at System.Web.HttpRequest.MapPath
  at System.Web.HttpServerUtility.MapPath
  at Telerik.Web.UI.ExternalScriptHelper.ResolveSecurePath
  at Telerik.Web.UI.RadScriptManager.OnResolveScriptReference
  at System.IO.Path.CheckInvalidPathChars
  at System.Security.Permissions.FileIOPermission.QuickDemand
  at System.IO.Path.GetFullPath
  at System.Web.Util.FileUtil.IsSuspiciousPhysicalPath
  at System.IO.Path.CheckInvalidPathChars
  at System.Security.Permissions.FileIOPermission.CheckIllegalCharacters
  at System.Security.Permissions.FileIOPermission.AddPathList
  at System.Security.Permissions.FileIOPermission..ctor
  at System.Web.InternalSecurityPermissions.PathDiscovery
  at System.Web.HttpRequest.MapPath
  at System.Web.HttpServerUtility.MapPath
  at Telerik.Web.UI.ExternalScriptHelper.ResolveSecurePath
  at Telerik.Web.UI.RadScriptManager.OnResolveScriptReference
  at System.IO.Path.CheckInvalidPathChars
  at System.Security.Permissions.FileIOPermission.QuickDemand
  at System.IO.Path.GetFullPath
  at System.Web.Util.FileUtil.IsSuspiciousPhysicalPath
  at System.IO.Path.CheckInvalidPathChars
  at System.Security.Permissions.FileIOPermission.CheckIllegalCharacters
  at System.Security.Permissions.FileIOPermission.AddPathList
  at System.Security.Permissions.FileIOPermission..ctor
  at System.Web.InternalSecurityPermissions.PathDiscovery
  at System.Web.HttpRequest.MapPath
  at System.Web.HttpServerUtility.MapPath
  at Telerik.Web.UI.ExternalScriptHelper.ResolveSecurePath
  at Telerik.Web.UI.RadScriptManager.OnResolveScriptReference
  at System.IO.Path.CheckInvalidPathChars
  at System.Security.Permissions.FileIOPermission.QuickDemand
  at System.IO.Path.GetFullPath
  at System.Web.Util.FileUtil.IsSuspiciousPhysicalPath
  at System.IO.Path.CheckInvalidPathChars
  at System.Security.Permissions.FileIOPermission.CheckIllegalCharacters
  at System.Security.Permissions.FileIOPermission.AddPathList
  at System.Security.Permissions.FileIOPermission..ctor
  at System.Web.InternalSecurityPermissions.PathDiscovery
  at System.Web.HttpRequest.MapPath
  at System.Web.HttpServerUtility.MapPath
  at Telerik.Web.UI.ExternalScriptHelper.ResolveSecurePath
  at Telerik.Web.UI.RadScriptManager.OnResolveScriptReference
  at System.IO.Path.CheckInvalidPathChars
  at System.Security.Permissions.FileIOPermission.QuickDemand
  at System.IO.Path.GetFullPath
  at System.Web.Util.FileUtil.IsSuspiciousPhysicalPath
  at System.IO.Path.CheckInvalidPathChars
  at System.Security.Permissions.FileIOPermission.CheckIllegalCharacters
  at System.Security.Permissions.FileIOPermission.AddPathList
  at System.Security.Permissions.FileIOPermission..ctor
  at System.Web.InternalSecurityPermissions.PathDiscovery
  at System.Web.HttpRequest.MapPath
  at System.Web.HttpServerUtility.MapPath
  at Telerik.Web.UI.ExternalScriptHelper.ResolveSecurePath
  at Telerik.Web.UI.RadScriptManager.OnResolveScriptReference
  at System.IO.Path.CheckInvalidPathChars
  at System.Security.Permissions.FileIOPermission.QuickDemand
  at System.IO.Path.GetFullPath
  at System.Web.Util.FileUtil.IsSuspiciousPhysicalPath
  at System.IO.Path.CheckInvalidPathChars
  at System.Security.Permissions.FileIOPermission.CheckIllegalCharacters
  at System.Security.Permissions.FileIOPermission.AddPathList
  at System.Security.Permissions.FileIOPermission..ctor
  at System.Web.InternalSecurityPermissions.PathDiscovery
  at System.Web.HttpRequest.MapPath
  at System.Web.HttpServerUtility.MapPath
  at Telerik.Web.UI.ExternalScriptHelper.ResolveSecurePath
  at Telerik.Web.UI.RadScriptManager.OnResolveScriptReference
  at System.IO.Path.CheckInvalidPathChars
  at System.Security.Permissions.FileIOPermission.QuickDemand
  at System.IO.Path.GetFullPath
  at System.Web.Util.FileUtil.IsSuspiciousPhysicalPath
  at System.IO.Path.CheckInvalidPathChars
  at System.Security.Permissions.FileIOPermission.CheckIllegalCharacters
  at System.Security.Permissions.FileIOPermission.AddPathList
  at System.Security.Permissions.FileIOPermission..ctor
  at System.Web.InternalSecurityPermissions.PathDiscovery
  at System.Web.HttpRequest.MapPath
  at System.Web.HttpServerUtility.MapPath
  at Telerik.Web.UI.ExternalScriptHelper.ResolveSecurePath
  at Telerik.Web.UI.RadScriptManager.OnResolveScriptReference
  at System.IO.Path.CheckInvalidPathChars
  at System.Security.Permissions.FileIOPermission.QuickDemand
  at System.IO.Path.GetFullPath
  at System.Web.Util.FileUtil.IsSuspiciousPhysicalPath
  at System.IO.Path.CheckInvalidPathChars
  at System.Security.Permissions.FileIOPermission.CheckIllegalCharacters
  at System.Security.Permissions.FileIOPermission.AddPathList
  at System.Security.Permissions.FileIOPermission..ctor
  at System.Web.InternalSecurityPermissions.PathDiscovery
  at System.Web.HttpRequest.MapPath
  at System.Web.HttpServerUtility.MapPath
  at Telerik.Web.UI.ExternalScriptHelper.ResolveSecurePath
  at Telerik.Web.UI.RadScriptManager.OnResolveScriptReference

I can't seem to actually catch this exception during run time (debugging with all exceptions turned on), nor do I see any way to ignore/stop that exception from being used. Any ideas?

3 Answers, 1 is accepted

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Hristo Valyavicharski
Telerik team
answered on 12 Apr 2016, 07:26 AM
Hi,

Can you paste the markup of the StyleSheetManager or StyleSheetManager configuration from the web.config? 

Thanks

Regards,
Hristo Valyavicharski
Telerik
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Kori
Top achievements
Rank 2
answered on 12 Apr 2016, 05:30 PM
<add key="Telerik.ScriptManager.TelerikCdn" value="Disabled" />
<add key="Telerik.Skin" value="Default" />
<add key="Telerik.StyleSheetManager.TelerikCdn" value="Disabled" />
<add key="Telerik.Web.UI.StyleSheetFolders" value="~/Content;~/Scripts" />
0
Hristo Valyavicharski
Telerik team
answered on 13 Apr 2016, 05:16 AM
Why you set Scripts forlder for the stylesheetmanager. Try this:

<appsettings> <add key="Telerik.Web.UI.ScriptFolders" value="~/Scripts/;"/> </appsettings>

http://docs.telerik.com/devtools/aspnet-ajax/controls/scriptmanager/combining-external-scripts

Regards,
Hristo Valyavicharski
Telerik
Do you need help with upgrading your ASP.NET AJAX, WPF or WinForms projects? Check the Telerik API Analyzer and share your thoughts.
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ScriptManager and StyleSheetManager
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Kori
Top achievements
Rank 2
Answers by
Hristo Valyavicharski
Telerik team
Kori
Top achievements
Rank 2
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