Question

在过去的几个月中，我一直在开发一个React Web应用程序，该应用程序将显示在ASP.NET Core Web项目（Visual Studio的模板）中。该应用程序近几个月来一直在使用，并由将在IE 11（使用IE 11呈现引擎的Office Web加载项）中专门显示的用户使用。我已经广泛使用了'fetch'方法，并且在添加babel-polyfill npm包之后没有遇到问题。不幸的是，今天我收到以下错误：

'fetch' is undefined

polyfill软件包仍然存在，并且我不清楚为什么突然报告此错误。如上所述，它以前确实可以工作，我不确定是什么原因导致“同构提取”程序包停止工作的情况。您将在下面找到package.json的内容。对于从何处寻找此问题的根本原因的任何见识，将不胜感激！

{
  "name": "ReactApp",
  "private": true,
  "version": "0.0.0",
  "devDependencies": {
    "@types/history": "4.6.0",
    "@types/react": "15.0.38",
    "@types/react-dom": "15.5.1",
    "@types/react-hot-loader": "3.0.3",
    "@types/react-router": "4.0.12",
    "@types/react-router-dom": "4.0.5",
    "@types/webpack-env": "1.13.0",
    "aspnet-webpack": "^2.0.1",
    "aspnet-webpack-react": "^3.0.0",
    "awesome-typescript-loader": "3.2.1",
    "bootstrap": "3.3.7",
    "css-loader": "0.28.4",
    "event-source-polyfill": "0.0.9",
    "extract-text-webpack-plugin": "2.1.2",
    "file-loader": "0.11.2",
    "isomorphic-fetch": "2.2.1",
    "jquery": "3.2.1",
    "json-loader": "0.5.4",
    "react": "15.6.1",
    "react-dom": "15.6.1",
    "react-hot-loader": "3.0.0-beta.7",
    "react-router-dom": "4.1.1",
    "style-loader": "0.18.2",
    "typescript": "2.4.1",
    "url-loader": "0.5.9",
    "webpack": "2.5.1",
    "webpack-hot-middleware": "2.18.2"
  },
  "dependencies": {
    "@microsoft/office-js": "^1.1.2",
    "@types/prop-types": "^15.5.2",
    "babel-polyfill": "^6.26.0",
    "moment": "^2.20.1",
    "office-ui-fabric-core": "^9.3.0",
    "office-ui-fabric-react": "https://registry.npmjs.org/office-ui-fabric-react/-/office-ui-fabric-react-5.29.0.tgz"
  }
}

Polyfilled React应用程序突然报告未定义“获取”方法

0 个答案: