If you have a package.json key like this:
"browserslist": {
"production": [
">0.2%",
"not dead",
"not op_mini all"
],
"development": [
"last 1 chrome version",
"last 1 firefox version",
"last 1 safari version"
]
}
The PostCSS Preset Env plugin does not load the 'development' key in development mode but 'production' :)
Possible fix, manual set NODE_ENV or process.env.NODE_ENV = 'development' or 'production'
or manually set BROWSERSLIST_ENV