nonblocks[Symbol.iterator] is not a function

[ceremcem]

Description

I've added NonBlock.js by default in my framework and when I use Paper.js's paper.install(window), it starts producing the following error on mousemove:

NonBlock.es5.js:117 Uncaught TypeError: nonblocks[Symbol.iterator] is not a function
    at HTMLBodyElement.onmousemove (NonBlock.es5.js:117)

Please let me know if you need further information for chasing the issue.

Priority

As I don't have to use paper.install(window) line, the problem does not affect my current work, so it's low priority for me.