Single File Component doesn't work anymore about vue-i18n-loader HOT 2 OPEN

const parse = require('querystring').parse
const JSON5 = require('json5')

module.exports = function (source, map) {
    let { lang } = parse(this.resourceQuery)

    // eslint-disable-next-line unused-imports/no-unused-vars
    lang = lang || 'json'

    let pureJSONStr = ''

    try {
        const obj = JSON5.parse(source)

        pureJSONStr = JSON.stringify(obj)
    } catch (err) {
        const e = new Error(`Invalid i18n block: \n${source}`)
        this.emitError(e.message)
        this.callback(e)
        return
    }

    this.cacheable && this.cacheable()

    this.callback(
        null,
        `
export default function (Component) {
  Component.options.__i18n = Component.options.__i18n || [];
  Component.options.__i18n.push('${pureJSONStr}');
  delete Component.options._Ctor;
}`.trim(),
        map
    )
}

        config.module
            .rule('i18n')
            .resourceQuery(/blockType=i18n/)
            .type('javascript/auto')
            .use('i18n')
            .loader(path.resolve('./tools/webpack-loader/i18n-loader.js'))
            .end()