const { environment } = require('@rails/webpacker'); // By default don't transpile JS files in ./node_modules – except for some specific modules. const babelLoader = environment.loaders.get('babel'); babelLoader.exclude = function(modulePath) { let forcedModules = [ 'activestorage' // ActiveStorage uses 'class', which is not supported by IE 11 and older Safari version ]; return ( modulePath.includes('node_modules') && forcedModules.every( forcedModule => !modulePath.includes('node_modules/' + forcedModule) ) ); }; module.exports = environment;