Cloudflare Pages don't support _redirects to __spa-fallback.html

[Akash187]

I'm using React Router as a...

framework

Reproduction

1. Create a SPA app with pre-rendered / path.
2. Use wrangler to serve the buid/client using wrangler pages dev ./build/client

System Info

1. React Router v7.2.0
2. Vite 6.2.0
3. React 19.0.0
4. Wrangler 3.111.0

Used Package Manager

pnpm

Expected Behavior

_redirects rule /* /__spa-fallback.html 200 should serve with status 200.

I tested my build using sirv-cli and it is working fine. The issue is only with cloudflare pages, during development using their wrangler tool and on server when deployed.

Actual Behavior

Right now this rule is creating 308 permanent redirect issue.

[Akash187]

I don't think that the issue is with React-Router but since a lot of us use Cloudlfare pages to deploy, it will help us discuss solution or fixes at a single place.