Reserved JS keywords are not allowed as CSS modules class names

Maxou44 commented 1 year ago

Describe the bug

When using CSS modules and importing to obtain computed class names, classes named using a JS reserved keywords are not available and return undefined.

There is no console warning or information in the documentation about that, and this test works on Webpack and Parcel.

As the following code is valid in JS, I don't think it should be a problem to support it:

const obj = {
  for : 'hello',
  while: 'world',
};
console.log(obj.for, obj.while);

Reproduction

https://stackblitz.com/edit/vitejs-vite-qmdhmt?file=main.js

Steps to reproduce

No response

System Info

Vite v4.4.9

Used Package Manager

npm

Logs

No response

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[X] The provided reproduction is a minimal reproducible example of the bug.