Curious: How do the Roll20 developers introduce "randomness" to the die roll?

In the old days, the random functions were very limited to developers and not very random. In fact, they were extremely poor and predictable. Now, with Crypto API libraries, randomness is a bit better. I'm curious to know to what lengths the developers went to implement randomness in the code. Is it through a Crypto API layer or some possible custom hardware peek type logic?

Check the stickies, please. <a href="https://app.roll20.net/forum/post/63487/from-the-source-roll20-rng-testing#post-65826" rel="nofollow">https://app.roll20.net/forum/post/63487/from-the-source-roll20-rng-testing#post-65826</a>