const MiniCssExtractPlugin = require('mini-css-extract-plugin'); exports.onCreateWebpackConfig = ({ actions, stage, getConfig }) => { if (stage === 'build-javascript') { const config = getConfig(); const index = config.plugins.findIndex((plugin) => { return plugin.constructor.name === 'MiniCssExtractPlugin'; }); config.plugins[index] = new MiniCssExtractPlugin({ ignoreOrder: true, }); actions.replaceWebpackConfig(config); } };