Hi, I'm having the same issue trying to add a twine into a code block on a page.
I've tried an iframe, and a regular code block, but neither work.
iframe loses all functionality of the twine:
<div><iframe id="my_iframe" width="100%" height="400px" src="http://liquidblackness.com/twine/empyre.html" scrolling="no"</iframe></div>
Any help would be greatly appreciated! It's the last big challenge before we can go live.