vue-cli3 hot update configuration, update failed to solve the problem of heat, save the code browser automatically refresh

 

Css heat update configuration vue, config.js in

const IS_PROD = ['production', 'test'].includes(process.env.NODE_ENV)

　css: {

        // whether to use css separate plug-ExtractTextPlugin

        extract: IS_PROD,

        // open the CSS source maps?

        sourceMap: false,

        // css preset configuration items

        loaderOptions: {

        },

        // 启用 CSS modules for all css / pre-processor files.

        modules: false,

  },

Then npm run serve to restart the project