Fonts limit bypass with iframes

It is possible to bypass max font using iframe (also object/frame i guess),

1st demo shows that each iframe instance has own max_font. If you create many iframes with less than max_fonts in each, it not reset window.parent fonts. http://pastebin.com/raw.php?i=MkqVQv8x

2nd, full bruteforce script with 512 fonts array. It dynamically creates many iframes with N fonts in each. Each iframe separately executes typical js/css detection mmmmlliii script with a short given set of fonts, and sends offsetWidth/Heights to parent script via postMessage. Parent script collect all answers and then compare results. http://pastebin.com/raw.php?i=D8DWb47X

Trac:
Username: jaedo