Chrome dies for some unknown reason on a specific program

https://www.khanacademy.org/computer-programming/minecraft-ke-more-noise/5971033575129088
It's related to the for loop containing the code that generates the noise. (It's at the top of the program)
The for loop contains rect() calls, random(), fill(), get() and pushing to an array.

Open the linked Khan Academy program and reproduce the Chrome failure, focusing on the top for loop that generates noise and uses rect(), random(), fill(), get(), and an array. No repository file or test is named, so first identify the live-editor entry point handling this program. Done means the program no longer causes Chrome to die and the triggering cause is understood.

Written by the indexing model from the issue text.