Vue javascript and css obfuscation - vue.js

Question

I'm working vue project. I was build it via vue-cli(Vue CLI v3.0.0-rc.3). I want obfuscate javascript files and css class names. When I was build my project I got an error:
Module build failed (from
./node_modules/mini-css-extract-plugin/dist/loader.js):
ModuleBuildError: Module build failed (from
./node_modules/postcss-loader/lib/index.js): Syntax Error
tsconfig.json
{
"compilerOptions": {
"outDir": "./dist/",
"target": "es5",
"module": "esnext",
"strict": true,
"strictNullChecks": false,
"moduleResolution": "node",
"emitDecoratorMetadata": true,
"experimentalDecorators": true,
"noImplicitAny": true,
"allowJs": true,
"allowSyntheticDefaultImports": true,
"downlevelIteration": true,
"sourceMap": false,
"baseUrl": "./",
"types": [
"node",
"jest"
],
"paths": {
"#/*": [
"src/*"
]
},
"lib": ["es2016", "dom", "dom.iterable", "scripthost"]
},
"include": [
"src/**/*.ts",
"src/**/*.vue",
"tests/**/*.ts"
],
"exclude": [
"node_modules",
"**/*.spec.ts"
]
}
vue.config.js
const JavaScriptObfuscator = require('webpack-obfuscator');
module.exports = {
devServer: {
host: '0.0.0.0',
port: 80,
},
configureWebpack: {
plugins: [
new JavaScriptObfuscator ({
rotateUnicodeArray: true
})
],
module: {
rules: [
{
test: /\.css$/,
use: [
'vue-style-loader',
{
loader: 'css-loader',
options: {
modules: true,
localIdentName: '[local]_[hash:base64:8]'
}
}
]
}
]
}
}
};
package.json
{
"name": "tetris",
"version": "0.1.0",
"private": true,
"scripts": {
"serve": "vue-cli-service serve --open",
"build": "vue-cli-service build",
"lint": "vue-cli-service lint"
},
"dependencies": {
"animejs": "^2.2.0",
"axios": "^0.18.0",
"material-design-icons-iconfont": "^3.0.3",
"vue": "^2.5.16",
"vue-property-decorator": "^6.1.0",
"vue-router": "^3.0.1",
"vue-status-indicator": "^1.1.0",
"vuetify": "^1.0.19",
"vuex": "^3.0.1",
"vuex-class": "^0.3.1",
"vuex-router-sync": "^5.0.0"
},
"devDependencies": {
"#types/animejs": "^2.0.0",
"#types/jest": "^22.0.1",
"#vue/cli-plugin-babel": "^3.0.0-beta.6",
"#vue/cli-plugin-eslint": "^3.0.0-beta.15",
"#vue/cli-plugin-typescript": "^3.0.0-beta.15",
"#vue/cli-service": "^3.0.0-beta.15",
"#vue/eslint-config-airbnb": "^3.0.0-rc.3",
"#vue/eslint-config-prettier": "^3.0.0-beta.6",
"#vue/eslint-config-typescript": "^3.0.0-rc.3",
"babel-core": "^7.0.0-0",
"babel-preset-vue": "^2.0.1",
"node-sass": "^4.9.0",
"sass-loader": "^7.0.1",
"ts-jest": "^22.0.1",
"vue-template-compiler": "^2.5.16",
"uglifyjs-webpack-plugin": "latest",
"webpack-obfuscator": "latest"
},
"browserslist": [
"> 1%",
"last 2 versions",
"not ie <= 8"
]
}