Redirect in beforeLoad not working using bun preset

[MarcMogdanz]

Which project does this relate to?

Start

Describe the bug

I have a setup where I have a group of routes called _app which all my authenticated routes are grouped into. In the beforeLoad of the _app.tsx I'm doing my auth check and if the user is not authenticated, they will be redirect to /login. This works fine when running in dev mode but running the compiled output you won't be redirected and only get a blank white page when going to /dashboard.

It feels like it could be somehow related to this issue here: #1295

I can also confirm that it does work when not using Bun. Removing server: { preset: "bun" } from my app.config.ts and then building + running it via node does resolve the issue when running the prod output.

Your Example Website or App

https://codesandbox.io/p/devbox/krp8d5

Steps to Reproduce the Bug or Issue

1. Run bun run build
2. Run bun run .output/server/index.mjs
3. Go to /dashboard

The dashboard route is protected and always redirects you to /login. It works as expected when running bun run dev but in the compiled output it just sends a blank page on the /dashboard path and does not redirect the user.

Expected behavior

Going to /dashboard should redirect me to /login.

Screenshots or Videos

No response

Platform

• OS: MacOS 14.4.1
• Browser: Chromium
• Version: 131.0.6778.108

Additional context

No response