IdP initiated auth not working whereas SP initiated is ok

[Tom Scavo]

On Thu, Dec 18, 2014 at 10:20 AM, Luay Zakaria <luay.zakaria at gmail.com> wrote:
>
> I’m not quite sure how to troubleshoot “isapi_shib_extension: URL is
> malformed.”
>
> Is this a configuration issue on the IdP or the SP side? are there any
> suggested solutions?

Just a wild guess but maybe this has something to do with RelayState.
Maybe the SP is requiring RelayState but not getting one in the
IdP-first case.

Tom