I get this error whenever I try to play in incognito mode in chrome or firefox. It has something to do with Love2D not being able to access IndexedDB/not having necessary cookies. It's been an open bug with Love.js since 2020, and after talking with a smart friend it sounds like it'd be really tricky for them to fix.
If any of my Love.js games fail to load, please try disabling incognito mode or using another browser. Failing that, the executable versions should still work fine.
I saw the note about that, but the thing is that I am not in incognito mode! In incognito mode, I get a different error, "love.js:9 DOMException: The user denied permission to access the database."
I'm not sure if this is helpful at all, but it does seem to be a different kind of issue than the ones you knew about, so I figured I'd report it. no worries at all if you don't have the bandwidth to troubleshoot further, it looks like you've already spent a lot of time on similar things!
