This is kind of a gnarly one. This summary should explain it: https://chatgpt.com/share/685b9dcc-2f8c-800c-aa3b-4449b71ad717
Basically I have a COEP header on my game assets, and pixi.js won't load on Safari browsers because it can't load the web workers that are loaded via this plugin as blobs. The only work around for me is to disable those headers, which isn't great.
The ideal fix would be a refactor of this plugin that could load the worker code as a url to guarantee full portability.