Very strange behavior — Astro POST endpoints not working in Cloudflare

[jerrytomato]

Astro Info

Astro                    v5.7.10
Node                     v23.8.0
System                   macOS (arm64)
Package Manager          bun
Output                   server
Adapter                  @astrojs/cloudflare
Integrations             @astrojs/react

If this issue only occurs in one browser, which browser is a problem?

No response

Describe the Bug

None of my post endpoints are working in production. I even have a test file that has two definitions, GET and POST. When I send a POST request, it has a 301 redirect to the GET handler. Huh?????

// src/pages/api/foo.ts
export async function POST() {
  return new Response("🔥 POST HIT", { status: 200 });
}

export async function GET() {
  return new Response("🧊 GET HIT", { status: 200 });
}

And when I remove the GET handler and just send the POST:

// src/pages/api/foo.ts
export async function POST() {
  return new Response("🔥 POST HIT", { status: 200 });
}

It returns a 404. I have followed everything to setup the cloudflare adapter according to spec and it's still failing.

Anyone experience this or know what's causing it?

What's the expected result?

Endpoints should be deployed flawlessly to CloudFlare.

Link to Minimal Reproducible Example

problem is with cloudflare

Participation

• I am willing to submit a pull request for this issue.

[hkbertoson]

There is some more to this...

I have created a Minimal Repro here. Cloudflare API Testing

You can hit Test API to test it out. Currently, POST,DELETE,PUT,PATCH will all fail. If you turn off CSRF, it will work.

The issue is not with Cloudflare. It is with CSRF.