Move the login redirect feature to the internet site document (Notes.ini setting OIDC_LOGIN_ENABLE_REDIRECT)

Domino 14.5 now supports "third-party initiated login" via a new initiate_login_uri endpoint as defined by OIDC.Core at /auth/protocol/oidc/login. In order to leverage this functionality the default redirection needs to be disabled, but that is controlled by a notes.ini parameter which affects all internet site documents on the server.

For the use case where you have:
Internet site 1: automatic redirection to login to IDP1

Internet site 2: automatic redirection to login to IDP2 (a different IDP)

Internet site 3: Display a custom login form allowing the user to choose name and password, or various IDPs.

The notes.ini parameter OIDC_LOGIN_ENABLE_REDIRECT must be either redirection ON (=1) which works for Internet Site 1 & 2 but not 3, or the redirection OFF (=0) which works for Internet site 3 but not the other two.