private string GetReturnUrl()
{
string returnUrl = "/";
var referrer = this.Request.UrlReferrer;
if (referrer != null)
{
string domain = referrer.DnsSafeHost;
bool wellKnown = DbConvention.IsValidDomain(domain);
if (wellKnown)
{
returnUrl = referrer.ToString();
}
}
return(returnUrl);
}