Target browsers

By default webpacker provides these front-end tools:

• @babel/preset-env
• Autoprefixer
• postcss-preset-env

All these tools use Browserslist to detect which environment your users have

Webpacker browserslist default target:

defaults

defaults: (> 0.5%, last 2 versions, Firefox ESR, not dead), browserl.ist is an online tool to check what browsers will be selected by some query.

To keep browsers data up to date, you need to run:

yarn upgrade caniuse-lite

at least once every few months, to prevent such problems