https://leenawat.github.io/vue-admin-lte-auth
yarn install
yarn run serve
yarn run build
yarn run test
yarn run lint
See https://github.com/devjin0617/vue2-admin-lte https://dev.to/mygnu/vue-spa-router-guard-with-redirect-after-login-2anj
https://css-tricks.com/forums/topic/error-pages-401-403-404-500/