[keycloak-user] Identity Brokering, external IDP require nonce

[triton oidc]

Hi,

in my scenario, i'm using Keycloak as an IDP broker.
It works fine with a lot of configuration.

I build keycloak from source 3 weeks ago.

However the IDP i'm trying to integrate right now requires a nonce in the
first call on the authorization endpoint.

https://myidp.com/authorize?scope=openid+profile&state=state&response_type=code&client_id=clientid&redirect_uri=redirect_uri
fails
but if i manually add "&nonce=1234" in the url it works

I could not find an option in the external IDP concerning this nonce
generation.
Did i miss something ?
Should i ask for a feature and i'll wait for someone to look at it ?

any help would be appreciated

Thanks a lot

Amaury