Answer by Astor99 for I am getting an "Invalid Host header" message when connecting to webpack-dev-server remotely

note for vue-cli users:

put a file vue.config.js in the root, with the same lines:

module.exports = {  configureWebpack: {    devServer: {      public: '0.0.0.0:8080',      host: '0.0.0.0',      disableHostCheck: true,    }  }};