State query param missing in redirect

Hi all,

Very new, and I’m writing a POC using a trial account. I need to embed a user-redirect in the state parameter on my authentication request

My state is of the form

    "nonce": {
        "user-redirect": <url>

And I base64url encode it when requesting authentication:


I successfully authenticate (using Google IDP), and the redirect successfully reaches my server (redirect_uri), but the state query param is not present in the redirected request.

Any ideas what I might be doing wrong?