使用Javascript以编程方式在浏览器中打开"查看源代码"HTML窗口？

var html = document.documentElement.outerHTML;
console.log(html);

var html = document.documentElement.outerHTML;
var newWindow = window.open("", "_blank");
newWindow.document.write("<pre>" + html.replace(/</g, "&lt;").replace(/>/g, "&gt;") + "</pre>");
newWindow.document.close();