const getWebpackConfig = require('antd-tools/lib/getWebpackConfig'); module.exports = function (webpackConfig) { webpackConfig = getWebpackConfig(webpackConfig); if (process.env.RUN_ENV === 'PRODUCTION') { // Fix ie8 compatibility webpackConfig[0].module.loaders.unshift({ test: /\.jsx?$/, loader: 'es3ify-loader', }); } return webpackConfig; };