Passkey doesn't work with trailingSlash: true

[AdamZajler]

Provider type

Custom provider

Environment

  System:
    OS: Linux 5.15 Ubuntu 24.04.1 LTS 24.04.1 LTS (Noble Numbat)
    CPU: (12) x64 Intel(R) Core(TM) i7-9750H CPU @ 2.60GHz
    Memory: 5.15 GB / 7.71 GB
    Container: Yes
    Shell: 5.2.21 - /bin/bash
  Binaries:
    Node: 22.17.0 - ~/.nvm/versions/node/v22.17.0/bin/node
    npm: 10.9.2 - ~/.nvm/versions/node/v22.17.0/bin/npm
  npmPackages:
    @auth/prisma-adapter: ^2.10.0 => 2.10.0
    next: 15.3.4 => 15.3.4
    next-auth: ^5.0.0-beta.29 => 5.0.0-beta.29
    react: ^19.0.0 => 19.1.0

Reproduction URL

Describe the issue

Like in the title

How to reproduce

None, just add that prop to Next.js

Expected behavior

Working

[github-actions]

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

Why was this issue closed?

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My repository is private and cannot make it public

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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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I think my reproduction is good enough, why aren't you looking into it quickly?

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Useful Resources

• How to create a Minimal, Complete, and Verifiable example
• Bug report: Framework
• Bug report: Provider
• Bug report: Adapter