Have you ever asked how many characters you can pass as parameter to a Javascript event handler or to a HTML webresource? I do, because I like to give a consultant or the customer the possibility to pass dynamic values in form of JSON objects or even whole functions without touching my code.
HTML webresource
The limit here is at 1.500 characters.
Javascript event handler
I think there no limit. Really. I made a test with up to 2.400.000 characters without any problems. The only thing that I would mention – do not exaggerate it as I did, because the performance suffers quite a lot.