[BUG] Prod-only crash when enabling `cacheComponents` (Uncaught SyntaxError: Unexpected identifier '$')

[thipperz]

Describe the bug

I get this error (production only) when trying to iterate over a "results" object and rendering stuff in async component.

At first I thought it was a Next.js issue but I could not reproduce this error when deploying on Vercel.

It occurs only when enabling cacheComponents

Steps to reproduce

1. Clone the repo ppr-repro
2. Deploy to Cloudflare Workers
3. Try to load the homepage.
4. If it works, try reloading it.

Expected behavior

Page should render the suspense component after the delay without crashing.

@opennextjs/cloudflare version

1.16.5

Wrangler version

4.65.0

next info output

Operating System:
  Platform: linux
  Arch: x64
  Version: #1 SMP PREEMPT_DYNAMIC Thu Jun  5 18:30:46 UTC 2025
  Available memory (MB): 11961
  Available CPU cores: 16
Binaries:
  Node: 24.2.0
  npm: 11.3.0
  Yarn: 1.22.21
  pnpm: 10.28.1
Relevant Packages:
  next: 16.2.0-canary.46 // Latest available version is detected (16.2.0-canary.46).
  eslint-config-next: N/A
  react: 19.2.3
  react-dom: 19.2.3
  typescript: 5.9.3
Next.js Config:
  output: N/A

Additional context

[vicb]

I can reproduce and will take a look next week.

What do you mean by "Prod-only" ?

[thipperz]

I can reproduce and will take a look next week.

What do you mean by "Prod-only" ?

I mean it only happens in production environment

[vicb]

I can reproduce and will take a look next week.
What do you mean by "Prod-only" ?

I mean it only happens in production environment

The question is what you mean by that?
I reproduced it we pnpm preview so wondering if there is something else to consider?

[thipperz]

I can reproduce and will take a look next week.
What do you mean by "Prod-only" ?

I mean it only happens in production environment

The question is what you mean by that? I reproduced it we pnpm preview so wondering if there is something else to consider?

Oh, you're right. It works with pnpm dev but crashes anywhere else.