Apple provider error with redirectProxyUrl

Provider type

Apple

Environment

  System:
    OS: Linux 6.1 Amazon Linux 2023
    CPU: (4) arm64 Neoverse-N1
    Memory: 11.32 GB / 15.25 GB
    Container: Yes
    Shell: 5.2.15 - /bin/bash
  Binaries:
    Node: 18.20.2 - /usr/bin/node
    npm: 10.5.0 - /usr/bin/npm
  Managers:
    RubyGems: 3.4.10 - /usr/bin/gem
    Yum: 4.14.0 - /usr/bin/yum
  Utilities:
    Git: 2.40.1 - /usr/bin/git
    Curl: 8.5.0 - /usr/bin/curl
    OpenSSL: 3.0.8 - /usr/bin/openssl
  Virtualization:
    Docker: 25.0.5 - /usr/bin/docker
  IDEs:
    Nano: 5.8 - /usr/bin/nano
    Vim: 9.0 - /usr/bin/vim
  Languages:
    Bash: 5.2.15 - /usr/bin/bash
    Java: 17.0.12 - /usr/bin/javac
    Perl: 5.32.1 - /usr/bin/perl
    Python3: 3.9.16 - /usr/bin/python3
    Ruby: 3.2.2 - /usr/bin/ruby

Reproduction URL

https://github.com/nextauthjs/next-auth-example

Describe the issue

I'm using two domains, and both need to support social login. Currently, I'm setting the default redirect_url using AUTH_URL in env file and handling the other domain with redirectProxyUrl option, by taking values from X-Forwarded-Host. The redirectProxyUrl is working correctly for Facebook, Google, Naver, and Kakao providers.

[auth][debug]: using redirect proxy { "redirect_uri": "https://test.domain1.com/api/auth/callback/google", "data": "https://test.domain2.com/api/auth/callback/google" }

But for the Apple provider, the redirectProxyUrl isn't applied to the redirect_path. Instead, it defaults to the AUTH_URL set in the env variable. it even does not trigger the following code: [auth][debug]: using redirect proxy

How to reproduce

Create a project using the default Apple Provider, as stated in the docs (make sure to use https and not use localhost as the domain): https://next-auth.js.org/providers/apple
Enable debug mode: https://next-auth.js.org/configuration/options#debug
Create .env file and fill AUTH_URL(first domain), AUTH_APPLE_ID, AUTH_APPLE_SECRET variables
Add redirectProxyUrl option(second domain) in your NextAuth object in auth.ts file.
Try to sign in using your AppleID

Expected behavior

After successfully login with Apple, it redirects redirectProxyUrl not AUTH_URL

We could not detect a valid reproduction link. Make sure to follow the bug report template carefully.

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I did not open this issue, but it is relevant to me, what can I do to help?

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nextauthjs / next-auth