Multi Session Support on Development

[MathiasGruber]

Preliminary Checks

• I have reviewed the documentation: https://clerk.com/docs

• I have searched for existing issues: https://github.com/clerk/javascript/issues

• I have not already reached out to Clerk support via email or Discord (if you have, no need to open an issue here)

• This issue is not a question, general help request, or anything other than a bug report directly related to Clerk. Please ask questions in our Discord community: https://clerk.com/discord.

Reproduction

https://github.com/studie-tech/TheNinjaRPG/blob/main/app/src/components/layout/core4_default.tsx

Publishable key

pk_test_dGFsZW50ZWQta2l0LTY2LmNsZXJrLmFjY291bnRzLmRldiQ

Description

Steps to reproduce:
Attempt multi-session flow on development -> use UserButton -> add account -> add new account

Expected behavior:
Ability to switch sessions.

Actual behavior:
Redirects back to site, still logged in as previous user. No new session added to account.

Environment

System:
    OS: macOS 15.5
    CPU: (10) arm64 Apple M1 Max
    Memory: 2.16 GB / 64.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 20.18.3 - ~/.nvm/versions/node/v20.18.3/bin/node
    Yarn: 1.22.19 - ~/miniforge3/bin/yarn
    npm: 10.8.2 - ~/.nvm/versions/node/v20.18.3/bin/npm
    pnpm: 8.6.3 - ~/miniforge3/bin/pnpm
    bun: 1.2.12 - ~/.bun/bin/bun
  Browsers:
    Chrome: 136.0.7103.114
    Safari: 18.5

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