Embedding circuit simulations!

was just chatting with @BastienL about circuit simulators and he showed me circuitjs - (source here) looks cool ! check out this pal burst amplifier !

now we can embed them here in scanlines too ! (with the iframe tag - <iframe src="put.url/here", Width=700, Height=700></iframe>)

only problem is that slightly more complex simulations generate urls that are over the 2084 url limit for many browsers etc. could use a url shortener but then we open to iframe embeds from anywhere - not sure if theres another way around this limit ?