Unexpected References to Server Actions, Turbopack, Hot Reload and DevTools in Production Export Build

[daniilpanichevornament]

Link to the code that reproduces this issue

https://github.com/daniilpanichevornament/next-export

To Reproduce

1. Configure Next.js with the module: export option.
2. Run the production build.
3. Inspect the output source files for references to server actions, turbopack, hot reload, and devtools

Additional Evidence:

I have identified these issues in the built files:

• Turbopack reference
• Server actions and devtools reference

Current vs. Expected behavior

Expected Behavior:

A production export build should include only the necessary static content without any references to development or server-only features, resulting in an optimized bundle.

Actual Behavior:

The build output contains references to server actions and various development tools, leading to a larger bundle size and unnecessary traffic overhead.

Impact:

This issue might be affecting performance in production, especially under high load, due to the increased bundle size and the overhead of shipping unused code.

Provide environment information

Operating System:
  Platform: win32
  Arch: x64
  Version: Windows 11 Home Single Language
  Available memory (MB): 16111
  Available CPU cores: 16
Binaries:
  Node: 20.11.1
  npm: 10.2.4
  Yarn: 1.22.22
  pnpm: N/A
Relevant Packages:
  next: 15.1.7 // Latest available version is detected (15.1.7).
  eslint-config-next: 15.1.7
  react: 19.0.0
  react-dom: 19.0.0
  typescript: 5.7.3
Next.js Config:
  output: export

Which area(s) are affected? (Select all that apply)

Performance, Turbopack, Server Actions, Output

Which stage(s) are affected? (Select all that apply)

next build (local)

Additional context

I assume that the static export should be completely free of code that isn't used in production.
Any insights on whether this is expected behavior or if there's a configuration option to remove these references would be greatly appreciated.

[samcx]

@daniilpanichevornament Thank you for submitting an issue!

Looks like we are already taking a look.