A quick check shows this console error in Chrome:
[quote:gpy3h7ow]Refused to display 'https://brashmonkey.com/basic_platformer/index.html' in a frame because it set 'X-Frame-Options' to 'sameorigin'.
So it looks like you set HTTP headers to specifically block cross-domain framing, then put it in a cross-domain iframe, which of course gets blocked!