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bootup-sandbox

v0.0.4

Published

bootup a sandbox

Downloads

14

Readme

bootup-sandbox

NPM version Build Status Coverage Status Known Vulnerabilities changelog license

npm-image

在当前页面中启动一个沙箱环境, 让所有代码跑在沙箱中

原理

初衷: 在 PC 端页面中接入第三方的 IM 组件, 为了避免接入时可能存在的冲突

  • 在当前页面中插入一个空的 <iframe> 元素
    • 作为独立的运行环境, 与当前页面隔离开(特别适合作为第三方的集成方案)
    • 避免与当前页面的 CSS/JS 冲突
  • JS 注入到 <iframe> 元素中执行
    • 动态创建 <script> 元素插入到 <iframe>

灵感来源反击爬虫,前端工程师的脑洞可以有多大?, 感谢网易云音乐的 FE 们

iframe异步加载式

例子:网易云音乐

网易云音乐页面一打开,html源码里几乎只有一个iframe,并且它的src是空白的:about:blank。接着js开始运行,把整个页面的框架异步塞到了iframe里面…

music 163 com

Example

import BootupSandbox from 'bootup-sandbox';

var sandbox = new BootupSandbox();
sandbox.injectScript('window.foo = "bar"', function() {
    console.log(sandbox.window.foo);
});

APIDoc

  • ESDoc
  • 兼容 IE9+
    • Object.defineProperty
    • script.onload
    • postMessage
    • addEventListener

其他思路