[Bug?]: Server action chunks are not generated in production build when using `experimental.islands`

[jtag05]

Duplicates

• [X] I have searched the existing issues

Latest version

• [X] I have tested the latest version

Current behavior 😯

Triggering a server action from a production build when experimental.islands are enabled throws a 500 error Cannot find module for the referenced chunk.

Expected behavior 🤔

Server actions should behave as they do in development as well as a production build with islands disabled.

Steps to reproduce 🕹

minimum repro repository

Steps:

1. Clone linked repo
2. Run pnpm build
3. Run pnpm start
4. Open app and click Trigger Action button
5. Observer the 500 error indicating that the server action chunk does not exist.

Context 🔦

I tried debugging this locally and the issue seems related to these lines in the vinxi config. Removing the both conditionals for the islands feature re-adds the server functions, but re-adds the client side routing, obviously. Having either of the two conditionals results in the server actions chunk not being generated.

https://github.com/solidjs/solid-start/blob/main/packages/start/config/index.js#L154-L159 https://github.com/solidjs/solid-start/blob/main/packages/start/config/index.js#L192-L196

I will continue to poke around and see if I can solve this but I am not deeply familiar with vinxi or vite apart from a surface level understanding. I do find it odd that the client config is dictating if server actions are being generated though :thinking:

Your environment 🌎

System:
  OS:  Linux 6.5.0-35-generic Ubuntu 22.04.4 LTS
  CPU: i7-9750H 
Binaries:
  Node: v20.10.0
  pnpm: v9.4.0
npmPackages:
  @solidjs/router: 0.13.6
  @solidjs/start: 1.0.2
  solid-js: 1.8.17
  vinxi: 0.3.12