Oh, that's very interesting. Sounds like it could be a localization issue with the scripting language I'm using (the , vs . as decimal separator difference). Thank you for looking into it!
Viewing post in Champions of Shond: Echoes of Faith jam comments
I would totally assume this is the case, we broke a full software like that not too long ago here at work and this was the culprit the devs found :) And indeed my comp here is set as some sort of hybrid, which would lead to the exe working and not the webgl, while none do on my home computer. No worries, happy to if it can help for later projects :)