How to force ASP.NET forms authentication to use absolute URL for ReturnUrl parameter?

When you use ASP.N开发者_如何学编程ET forms authentication, and you want to surf to a secure page like securepage.aspx, you would be redirected to this URL:

http://www.example.com/login.aspx?returnurl=securepage.aspx`

Is there a way to get the absolute URL in login page, like:

http://www.example.com/login.aspx?returnurl=http://www.example.com/securepage.aspx

I need this feature, because I'm working on a rather complicated SSO project, and I need to always work with absolute URLs.

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try this

<httpRuntime useFullyQualifiedRedirectUrl=”true”