User_GetUnifiedLoginUrl with parameters

User_GetUnifiedLoginUrl with parameters

  
Hi there,
I have a page with parameters (teste.aspx?param1=value1&param2=value2,&param3=value3).

In integrated login i call the User_GetUnifiedLoginUrl  action with OriginalUrl = My HandleLogin Page + GetExceptionURL(). 
The output returns something like:

/Users/IntegratedAuthentication.aspx?OriginalURL=%2f(ESPACE)%2f(HandleLogin.aspx)%3fUrl%3dhttp%3a%2f%2f(IPServidor)%2f(eSpace)%2f(Teste.aspx)%3f(param1)%3d(value1)%26(param2)%3d(Value2)%26(param3)%3d(value3)

After that i use one ExternaSite. The problem is that the url in HandleLogin.aspx page only receives:
 IPServidor/eSpace/Teste.aspx?param1=value1

The page eSpace.HandleLogin.aspx receive one parameter Url...

Any idea?

Thanks,
Plácido Miranda