cra-template-doly/template/config/proxy.js

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// 环境对应 .env-cmprc 中配置的 REACT_APP_ENV
module.exports = {
  dev: {
    '/api': {
      target: 'https://example.com',
      changeOrigin: true,
      secure: false,
      pathRewrite: { '^': '' }
    }
  },
  test: {
    '/api/': {
      target: 'your test url',
      changeOrigin: true,
      secure: false,
      pathRewrite: { '^': '' }
    }
  }
};