Errors in browser console, requests to /sockjs-node/info?t=1555629946494

I finally fixed it using the devServer.public configuration option.

Below is my vue.config.js file:

module.exports = {
    devServer: {
        disableHostCheck: true,
        port: 4000,
        public: '0.0.0.0:4000'
    },
    publicPath: "https://stackoverflow.com/"
}

I got my answer from reading this.