http https redirect returns 400

[Dr. Marco Lechner]

Hi,

I do have a permanent redirect configured to firce https using

<VirtualHost *:80>
   ServerAdmin webmaster at myserver.com
   DocumentRoot /var/www/html
   ServerName myserver.com
   #SSL-Redirect
   Redirect permanent / https://www.example.com/
</VirtualHost>

When trying to request

https://www.example.com/start/ works without problems and redirects to
the IdP Login Page, but

http://www.example.com/start returns a 400 with "Single Sign-on - Stale
Request" from the IdP:

https://idp.example.com/idp/profile/SAML2/Redirect/SSO?SAMLRequest=[...]&RelayState=[...]

Any idea what may be wrong in my configuration?

I do have full access to my SPs, but not to the IdPs Logfiles.

Marco

--