Chrome上的浏览器扩展内容脚本的ReactJS Render问题

时间:2019-05-16 18:25:58

标签: reactjs google-chrome google-chrome-extension browser-extension

我做了一个浏览器扩展,将iframe注入到其中包含html的DOM中。我一直在尝试将React组件渲染到iframe中,但无法渲染,并且收到以下错误Invariant Violation: Maximum update depth exceeded. This can happen when a component repeatedly calls setState inside componentWillUpdate or componentDidUpdate. React limits the number of nested updates to prevent infinite loops.

我尝试通过内容脚本同时渲染到iframe甚至直接渲染到DOM,但是我仍然遇到同样的问题。我知道正在调用组件的render函数,因为我在其中放置了console.log并显示了消息;我还调试了它,并且断点在render函数中停止了。另外,我添加了生命周期方法componentWillUpdatecomponentDidUpdate,甚至没有调用它们。

//Index.jsx
import React from "react";
import ReactDOM from "react-dom";

class Index extends React.Component{
  constructor(props){
    super(props);
  }

  componentWillUpdate(){
    console.log('componentWillUpdate');
  }

  componentDidUpdate(){
    console.log('componentDidUpdate');
  }

  render() {
    console.log('render');
    return <div>Hello!</div>;
  }
}

ReactDOM.render(<Index/>, document.getElementById("g-root"))

// Including this code to show how I was adding the react component to the DOM if it is loaded immediately via manifest.json
// const app = document.createElement('div');
// app.id = "g-root";
// document.body.appendChild(app);
// ReactDOM.render(<Index />, app);

//webpack.config
const path = require('path');

module.exports = (env, args) => {
  return {
    mode,
    devtool,
    entry: {
      react: path.join(__dirname, './Index.jsx')
    },
    module: {
      rules: [{
        test: /\.jsx$/,        
        use: {
          loader: 'babel-loader',
          options: {
            presets: ['env', 'react', 'es2015']
          }
        }
      }]
    },
    output: {
      path: path.join(__dirname, './'),
      filename: 'react.bundle.js'
    }
  }
};
<!--This gets loaded into the iframe-->
<!DOCTYPE html>
<html>
  <head>  
  </head>

  <body>
    <div id="g-root"></div>
    <script src="react/react.bundle.js"></script>
  </body>
</html>
//manifest.json *included just to show that it has the same issue on page load.

{
"content_scripts":
  [{
  "js":["react/react.bundle.js"],
  "run_at": "document_end",
  "matches": ["<all_urls>"]
  }]
}

应该注意的是,注入iframe以及整个扩展都可以正常工作,直到我开始尝试将React添加到项目中为止。

1 个答案:

答案 0 :(得分:0)

事实证明这是一个内部库的问题,该库与用我的React组件渲染Web组件有关。