[SAML] 403 Error with Designer while gateway SSO works!

Ignition
1

Hi,
Following up to this specific post: SSO Login for Designer Session - #6 by TimeLordship

I can login via gateway, but saml redirects incorrectly on Designer.

  1. Why is the behavior for Designer different than the gateway?
  2. Is there a configuration that can be changed to ensure that the designer redirect URL is correct?

Thanks for any help.