vue-cli3

vue-cli3 打包后static/js/chunk-[hash].js 有重复的代码，请问怎么优化？

已经配置了代码分割的

config

  .when(process.env.NODE_ENV !== 'development',

 config  => {

 config

        .optimization.splitChunks({

 chunks: 'all', // 表示哪些代码需要优化，有三个可选值：initial(初始块)、async(按需加载块)、all(全部块)，默认为async

 maxInitialRequests: 5, // 按需加载时候最大的并行请求数，默认为5

 minSize: 30000, // 依赖包超过30000bit将被单独打包

 // 缓存组 priority: 缓存组打包的先后优先级 | minChunks: 表示被引用次数，默认为1

 cacheGroups: {

 // 公共模块-组件

 commons: {

 name: 'chunk-commons',

 test: resolve('src/components'), // can customize your rules

 minChunks: 3, //  minimum common number

 priority: 5,

 reuseExistingChunk: true

            },

 // 第三方库

 libs: {

 name: 'chunk-libs',

 test: /[\\/]node_modules[\\/]/,

 priority: 10,

 chunks: 'initial',

 reuseExistingChunk: true

            },

 elementUI: {

 name: 'chunk-elementUI',

 priority: 20,

 test: /[\\/]node_modules[\\/]_?element-ui(.*)/

            },

 echarts: {

 name: 'chunk-echarts',

 test: /[\\/]node_modules[\\/]echarts[\\/]/,

 chunks: 'all',

 priority: 12,

 reuseExistingChunk: true,

 enforce: true

            }

          }

        })

      config.optimization.runtimeChunk('single')

    }

  )