wepy^1.7 wepy.config.js proxy配置项有吗

Description

wepy.config.js 配置代理[类似于webpack那种proxy]

 proxy: {
        '/api':{
            target: ',
            changeOrigin: true,
            pathRewrite: {
                '^/api' : '',
            }
        },
    },

Environment

• wepy version: [^1.7.2]

Reproduce

Observed Results

无法生效

Expected Results

Relevant Code / Logs

const path = require('path');
var prod = process.env.NODE_ENV === 'production';

module.exports = {
wpyExt: '.wpy',
eslint: false,
cliLogs: !prod,
  proxy: {
      '/api/':{
          target: '',
          changeOrigin: true,
          pathRewrite: {
              '^/api/' : '/',
          }
      },
  },
build: {
  web: {
    htmlTemplate: path.join('src', 'index.template.html'),
    htmlOutput: path.join('web', 'index.html'),
    jsOutput: path.join('web', 'index.js')
  }
},
resolve: {
  alias: {
    counter: path.join(__dirname, 'src/components/counter'),
    '@': path.join(__dirname, 'src')
  },
  aliasFields: ['wepy', 'weapp'],
  modules: ['node_modules']
},
compilers: {
  less: {
    compress: prod
  },
  /*sass: {
    outputStyle: 'compressed'
  },*/
  babel: {
    sourceMap: true,
    presets: [
      'env'
    ],
    plugins: [
      'transform-class-properties',
      'transform-decorators-legacy',
      'transform-object-rest-spread',
      'transform-export-extensions',
    ]
  }
},
plugins: {
},
appConfig: {
  noPromiseAPI: ['createSelectorQuery']
}
}

if (prod) {

// 压缩sass
// module.exports.compilers['sass'] = {outputStyle: 'compressed'}

// 压缩js
module.exports.plugins = {
  uglifyjs: {
    filter: /\.js$/,
    config: {
    }
  },
  imagemin: {
    filter: /\.(jpg|png|jpeg)$/,
    config: {
      jpg: {
        quality: 80
      },
      png: {
        quality: 80
      }
    }
  }
}
}

 ```