Javascript 如何禁用或防止ReactJS在服务器端呈现文档时查找文档？

我正在尝试在我的ReactJS应用程序中使用GSAP在客户端制作动画。如果我通过npm安装gsap模块，然后尝试在模块内使用gsap，则会出现以下错误：

node_modules/gsap/src/uncompressed/TweenMax.js:2535
            _doc = document,
                   ^

ReferenceError: document is not defined
    at Function.<anonymous> (/Users/gcardella/Documents/TOG/SOLID/mockups/solid-website/node_modules/gsap/src/uncompressed/TweenMax.js:2535:11)
    at [object Object].check (/Users/gcardella/Documents/TOG/SOLID/mockups/solid-website/node_modules/gsap/src/uncompressed/TweenMax.js:5794:61)
    at new Definition (/Users/gcardella/Documents/TOG/SOLID/mockups/solid-website/node_modules/gsap/src/uncompressed/TweenMax.js:5811:10)
    at window._gsDefine (/Users/gcardella/Documents/TOG/SOLID/mockups/solid-website/node_modules/gsap/src/uncompressed/TweenMax.js:5816:12)
    at Array.<anonymous> (/Users/gcardella/Documents/TOG/SOLID/mockups/solid-website/node_modules/gsap/src/uncompressed/TweenMax.js:2489:11)
    at /Users/gcardella/Documents/TOG/SOLID/mockups/solid-website/node_modules/gsap/src/uncompressed/TweenMax.js:7570:9
    at Object.<anonymous> (/Users/gcardella/Documents/TOG/SOLID/mockups/solid-website/node_modules/gsap/src/uncompressed/TweenMax.js:7581:3)
    at Module._compile (module.js:435:26)
    at Module._extensions..js (module.js:442:10)
    at Object.require.extensions.(anonymous function) [as .js] (/Users/gcardella/Documents/TOG/SOLID/mockups/solid-website/node_modules/babel-register/lib/node.js:138:7)

---

尝试将web添加为配置中的目标。但这应该是默认值

var path = require('path');

module.exports = {
  entry: path.join(process.cwd(), 'client-render.js'),
  output: {
    path: './public/',
    filename: 'build.js'
  },
  module: {
    loaders: [
      {
        loader: 'babel'
      }
    ]
  },
  target: "web",
}

---

在我的webpack.config.js中：

module.exports = {
  entry: path.join(process.cwd(), 'client/client-render.js'),
  output: {
    path: './public/',
    filename: 'build.js'
  },
  module: {
    loaders: [
      {
        test: /.js$/,
        loader: 'babel'
      }
    ]
  },
  /* this is new */
  plugins: [
    new webpack.DefinePlugin({
      'process.env': {
        NODE_ENV: JSON.stringify('production'),
        APP_ENV: JSON.stringify('browser')
      }
    })
  ]
}

然后在我的模块中：

if (process.env.APP_ENV === 'browser') {
  load_the_module_for_browser;
}

---

在webpackConfig的plugin属性中插入process.env，如下所示：

plugins: [
  new webpack.DefinePlugin({
    'process.env': {
      NODE_ENV: JSON.stringify(isDevelopment ? 'development' : 'production'),
      IS_BROWSER: true
    }
  })
]

---

在您的网页中设置ENV vars ala process.ENV.IS_浏览器ConfigThank@DoubleU23！我已经更新了问题以显示我的webpack.config.js。如何/在何处定义“set ENV vars ala process.ENV.IS_BROWSER”？

if (process.env.APP_ENV === 'browser') {
  load_the_module_for_browser;
}

plugins: [
  new webpack.DefinePlugin({
    'process.env': {
      NODE_ENV: JSON.stringify(isDevelopment ? 'development' : 'production'),
      IS_BROWSER: true
    }
  })
]