How to create a new HTMLDocument in IE?

问题

dcoument.implementation.createHTMLDocument [2] is one of the lesser-known DOM methods that (surprise!) creates a brand new HTML document.

Unsurprisingly, browser support is rather poor, but I found some workarounds:

Use an XLSTProcessor (crazy stuff!) in Firefox < 4

Create an empty iFrame:

var iframe = document.createElement('iframe');
iframe.style = 'display: none';
iframe.src = 'data:text/html,<!DOCTYPE html><title></title><body>';
document.body.appendChild(iframe);
newHTMLDocument = iframe.contentDocument; // <- we need this.
document.body.removeChild(iframe);

Still, since IE does not support the data scheme on iframes, there is no way to do it in IE. Or is there?