1. Install nodejs

2. Open console from the project root

3. run the command cd src/main/resources/public

4. run the command npm install

5. run the command npm run grunt

6. create file config-proxy.js in public folder

module.exports = {
    path: ''  //     http://you_server:port/
};

7. open new console from the project root

8. run the command cd src/main/resources/public

9. run the command npm run server

10. open https://localhost:8080/ in browser