Related plugins

• plugin-react

• plugin-react-swc

• plugin-react-oxc

Describe the bug

Switching from the normal @vitejs/plugin-react in vite.config.ts to the @vitejs/plugin-react-oxc plugin and not changing anything else makes the code in dev/watch mode crash with Uncaught ReferenceError: $RefreshReg$ is not defined if you're using modules from a different context than the main frame (e.g. a Worker). If I look at the code that triggered it, it's usually something like this:

export const MODULE_TYPE_TO_DOMAIN = {
    something: "SomethingElse",
    // ...
};
export const MODULE_DOMAIN_TO_TYPE = swapKeysAndValues(MODULE_TYPE_TO_DOMAIN);
_c = MODULE_DOMAIN_TO_TYPE;
// ...
var _c;
$RefreshReg$(_c, "MODULE_DOMAIN_TO_TYPE");

So that $RefreshReg$ is not available inside a Worker. Which makes sense. What doesn't make sense is that the plugin is trying to consider the MODULE_DOMAIN_TO_TYPE value a component.

Reproduction

N/A

Steps to reproduce

I tried to create a reproduction on StackBlitz but it didn't work to set up the oxc versions of Vite+Rolldown+vite-plugin-react with overrides for Vite.

The repro would be to import a shared library module from a Worker.

System Info

System:
    OS: macOS 15.5
    CPU: (16) arm64 Apple M3 Max
    Memory: 2.49 GB / 128.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 24.2.0 - /opt/homebrew/bin/node
    Yarn: 1.22.22 - /opt/homebrew/bin/yarn
    npm: 11.3.0 - /opt/homebrew/bin/npm
    bun: 1.2.5 - ~/.bun/bin/bun
  Browsers:
    Chrome: 137.0.7151.119
    Safari: 18.5

Used Package Manager

bun

Logs

No response

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