Working for me, Firefox 66.0.3, Windows 10
Not Working for me on ubuntu

Not working for me, Firefox 66.0.3, Windows 10
Console log:
TypeError: Argument 1 of Window.getComputedStyle is not an object.[Saber m谩s] [email protected] line 1 > eval:1:1962
Service worker event waitUntil() was passed a promise that rejected with 'TypeError: Cache got basic response with bad status 404 while trying to add request https://v3.svelte.technology/.DS_Store'. service-worker.js:1:5736
Relp on tutorial page sometimes works, most of the time does not
The website done by @Conduitry https://svelte-f66sql2hmq-uc.a.run.app/ does work without any problem
This same error was apparently briefly present this morning as well, but I have not seen it myself.

Currently, in incognito mode it works, otherwise it still doesn't. Even after I "clear site data". (Chrome macOS)
I had the same error in Safari and Firefox, but it disappeared when I cleared the cache (along with the service worker).
I think this is fixed now. I'm still not sure what the original bug was, but the reason it wasn't clearing was because the updated service worker was failing to install (because it couldn't cache a .DS_Store file 鈥斅爑gh).
Most helpful comment
I think this is fixed now. I'm still not sure what the original bug was, but the reason it wasn't clearing was because the updated service worker was failing to install (because it couldn't cache a
.DS_Storefile 鈥斅爑gh).