正在跳转至 https://github.com/wuwhs/browser-working-principle-note/blob/main/6.%E6%B5%8F%E8%A7%88%E5%99%A8%E4%B8%AD%E7%9A%84%E7%BD%91%E7%BB%9C/6.4.%E5%90%8C%E6%BA%90%E7%AD%96%E7%95%A5%EF%BC%9A%E4%B8%BA%E4%BB%80%E4%B9%88XMLHttpRequest%E4%B8%8D%E8%83%BD%E8%B7%A8%E5%9F%9F%E8%AF%B7%E6%B1%82%E8%B5%84%E6%BA%90/index.md