ServiceWorker not found

JosephK Public Seen by 20

I have juste updated Loomio and I have this error on many pages :
TypeError: ServiceWorker script at https://framavox.org/service-worker.js?1.8.771 for scope https://framavox.org/ encountered an error during installation.
According to the logs, the url seems to be considered as a group.
What is the purpose of this script ? (I found 2 minor problems, I don't know if it's related to this or if they already existed before the update)