Vue 前后端分离系统中遇到跨域问题

https://developer.mozilla.org/zh-CN/docs/Web/HTTP/Access_control_CORS

I  Your application is running here: http://127.0.0.1:8080

[HPM] Error occurred while trying to proxy request /content/showall from 127.0.0.1:8080 to http://localhost:8085/ (ECONNREFUSED) (https://nodejs.org/api/errors.html#errors_common_system_errors)

Vue 访问path是127.0.0.1:8080

后台接口的path是http://localhost:8085/

'use strict'
// Template version: 1.3.1
// see http://vuejs-templates.github.io/webpack for documentation.

const path = require('path')

module.exports = {
  dev: {
    assetsSubDirectory: 'static',
    assetsPublicPath: '/',
    proxyTable: {
      '/api':{
        target:'http://127.0.0.1:8085/',
        changeOrigin:true,
        pathRewrite:{
          '^/api':''
        }
      }
    },
    host: '127.0.0.1', // can be overwritten by process.env.HOST
    port: 8080, // can be overwritten by process.env.PORT, if port is in use, a free one will be determined
    autoOpenBrowser: false,
    errorOverlay: true,
    notifyOnErrors: true,
    poll: false, // https://webpack.js.org/configuration/dev-server/#devserver-watchoptions-
    devtool: 'cheap-module-eval-source-map',
    cacheBusting: true,
    cssSourceMap: true
  },

  build: {
    // Template for index.html
    index: path.resolve(__dirname, '../dist/index.html'),

    // Paths
    assetsRoot: path.resolve(__dirname, '../dist'),
    assetsSubDirectory: 'static',
    assetsPublicPath: '/',

    /**
     * Source Maps
     */

    productionSourceMap: true,
    // https://webpack.js.org/configuration/devtool/#production
    devtool: '#source-map',

    // Gzip off by default as many popular static hosts such as
    // Surge or Netlify already gzip all static assets for you.
    // Before setting to `true`, make sure to:
    // npm install --save-dev compression-webpack-plugin
    productionGzip: false,
    productionGzipExtensions: ['js', 'css'],

    // Run the build command with an extra argument to
    // View the bundle analyzer report after build finishes:
    // `npm run build --report`
    // Set to `true` or `false` to always turn it on or off
    bundleAnalyzerReport: process.env.npm_config_report
  }
}