[Bug]: preset-env disables caching when specifying browserslist env (v7.25.7+) #16915
Description
💻
- Would you like to work on a fix?
How are you using Babel?
babel-loader (webpack)
Input code
When enabling caching in babel-loader and babel.config.js, it's being completely invalidated if browserslistEnv option is provided in preset-env:
{
loader: 'babel-loader',
options: {
cacheDirectory: 'cache'
}
}module.exports = function(api) {
api.cache(true);
return {
presets: [
['@babel/preset-env', { browserslistEnv: 'production' }]
]
};
};Here is the repo with a working example: https://github.com/asapach/babel-cache
Configuration file name
babel.config.js
Configuration
{
"assumptions": {},
"filename": "...\\src\\index.js",
"sourceMaps": false,
"sourceFileName": "...\\src\\index.js",
"caller": {
"name": "babel-loader",
"target": "web",
"supportsStaticESM": true,
"supportsDynamicImport": true,
"supportsTopLevelAwait": true
},
"targets": {
"android": "129.0.0",
"chrome": "109.0.0",
"edge": "126.0.0",
"firefox": "115.0.0",
"ios": "15.6.0",
"opera_mobile": "80.0.0",
"safari": "15.6.0",
"samsung": "25.0.0"
},
"cloneInputAst": true,
"babelrc": false,
"configFile": false,
"browserslistConfigFile": false,
"passPerPreset": false,
"envName": "development",
"cwd": "...\\babel-cache",
"root": "...\\babel-cache",
"rootMode": "root",
"plugins": [],
"presets": [
[
"@babel/preset-env",
{
"browserslistEnv": "production",
"debug": true
}
]
]
}Current and expected behavior
After updating @babel/preset-env to v7.25.7, cache is not being written to disk.
Repro steps:
- Clone the repo: https://github.com/asapach/babel-cache
- Run
npm run build - Check that
cachefolder is empty
Before v7.25.7 or when browserslistEnv option is removed, the cache folder is being populated
Environment
System:
OS: Windows 11 10.0.22631
Binaries:
Node: 22.8.0 - C:\Program Files\nodejs\node.EXE
Yarn: 1.22.19 - ~\AppData\Roaming\npm\yarn.CMD
npm: 10.8.2 - C:\Program Files\nodejs\npm.CMD
npmPackages:
@babel/core: ^7.25.8 => 7.25.8
@babel/preset-env: ^7.25.8 => 7.25.8
babel-loader: ^9.2.1 => 9.2.1
webpack: ^5.95.0 => 5.95.0
Possible solution
Additional context
Effectively any option in this condition will trigger this issue:
babel/packages/babel-preset-env/src/index.ts
Lines 353 to 364 in f594ee4