[Malte Müller]

I’ve noticed the editor sometimes restores what you’ve written after reloading.

It’s not so much the editor as probably the browser cache.

There’s a site called JWFan where this is the case.

Well, as mentioned somewhere else jwfan uses as commercial forum software. I could possibly try to install a so called progressive webapp plugin that might help with local storing. But there is no guarantee either and it might have other side effects as it may very persistently cache things…