Version 1.4.0 is ESM only

[jacquesg]

Could this be made both CommonJS and ESM compatible?

With the latest version, this is now ESM only.

[klassm]

Could it be that the export for esm is also currently broken? When using vitest, it always loads the cjs variant instead of the cjs variant. Looking a bit for the reasons, I guess the exports entry point seems to be missing:
https://nodejs.org/api/packages.html#package-entry-points

Also see vitest-dev/vitest#4233