package.json development exports only

[tomchochola]

I'm using React Router as a...

library

Reproduction

Goto https://www.npmjs.com/package/react-router?activeTab=code and see the package.json or the dist folder. In the package.json only the dist/development is in use. The dist/production is not in use. Webpack bundle analyzer reports the development files used in the production bundle.

System Info

System:
    OS: Linux 5.15 Ubuntu 22.04.5 LTS 22.04.5 LTS (Jammy Jellyfish)
    CPU: (16) x64 12th Gen Intel(R) Core(TM) i5-12600K
    Memory: 25.30 GB / 31.22 GB
    Container: Yes
    Shell: 5.1.16 - /bin/bash
  Binaries:
    Node: 20.18.1 - /usr/bin/node
    Yarn: 1.22.22 - /usr/bin/yarn
    npm: 10.9.2 - /usr/bin/npm
  npmPackages:
    react-router: ^7.0 => 7.0.2

Used Package Manager

npm

Expected Behavior

Expect then the NODE_ENV=production that the dist/production files should be in use.

Actual Behavior

The dist/development files are used for both development and production builds.

[timdorr]

This is due to #12437, which is intended to be temporary.