asp.net mvc 4 - MVC4 AntiForgery token cookie name is appended with random string -

i encountering issue mvc4's

@html.antiforgerytoken() 

html helper. on development machine, when run project, upon inspecting headers (using fiddler) , name of token returned is

__requestverificationtoken 

but when deployed iis version 7.5 (windows 2008 r2), token name looks like:

__requestverificationtoken_l2v6b3jkzxi1 

where getting changed? because application not deployed "root folder" of iis? e.g. application deployed

"http://myserver/myapp" instead of "http://myserver" 

i found answer after looking @ source code:

http://aspnetwebstack.codeplex.com/sourcecontrol/latest#src/system.web.webpages/helpers/antiforgeryconfig.cs 

yes, because application deployed path, following code below appends encoded equivalent of path... hope finding save trouble.

        // if app path provided, we're generating cookie name rather field name, , cookie names should     // unique development server cookie , iis cookie - both running on localhost - don't stomp on     // each other.     internal static string getantiforgerycookiename(string apppath)     {         if (string.isnullorempty(apppath) || apppath == "/")         {             return antiforgerytokenfieldname;         }         else         {             return antiforgerytokenfieldname + "_" + httpserverutility.urltokenencode(encoding.utf8.getbytes(apppath));         }     }