code_challenge_method is not send with the authorize request

[borleth]

Describe the bug

In order to test PKCE on our IDP, we see the code_challenge_method is not send during the first authorize endpoint. So in reference to the RFC, the IDP need understand it's "plain" challenge, the default value.

To Reproduce Issuer and Client configuration: (inline or gist) - Don't forget to redact your secrets.

// Issuer configuration (issuer.metadata) and how it is constructed (discovery or manual?)
{
  // ...
}
// Client configuration (client.metadata) and how it is constructed (fromUri or manual?)
{
  // ...
}

Steps to reproduce the behaviour:

Expected behaviour A clear and concise description of what you expected to happen.

Environment:

• openid-client version: [e.g. v3.14.0]
• node version: [e.g. v8.9.0]

Additional context Add any other context about the problem here.

• [ ] the bug is happening on latest openid-client too.
• [ ] i have searched the issues tracker on github for similar issues and couldn't find anything related.

[panva]

Hi. I'm closing this issue because it does not follow the template and provides no details as to how you're using the module, not even a understandable description.