Download current html file

Question

How is it possible, to let the user download the current html page? The webpage loads the text using ajax, so my code doesn't works, because it downloads the original state of the page:

<a href="URL_OF_THIS_PAGE" download="page.html">Download</a>

Answer 1

<a onclick="this.href='data:text/html;charset=UTF-8,'+encodeURIComponent(document.documentElement.outerHTML)" href="#" download="page.html">Download</a>