vue-storefront/core/build/vue-loader.config.js

A Vue.js, PWA eCommerce frontend

module.exports = {
    loaders: {
      scss: 'vue-style-loader!css-loader!sass-loader', // <style lang="scss">
      sass: 'vue-style-loader!css-loader!sass-loader?indentedSyntax' // <style lang="sass">
    },
    optimizeSSR: false,
    preserveWhitespace: false   
}