[keycloak-user] OpenID Connect IdP and nonce parameter

Hi, I'm facing an issue where I use an external oidc IdP (FranceConnect) for my users to log in. When trying to login with this provider, i have this error : {"status":"fail","message":"The following fields are missing or empty : nonce"} If i put, manually, &nonce=someRandomInt, in the URL, the process continues. Am i missing something in my Identity Provider configuration ? Is there a way to add a parameter when requesting the external provider ? Regards, Raphaël HOAREAU.