403 Forbidden after typing for a period of time in Firefox

[Ruin0x11]

After typing for about ten minutes in Firefox, I start to get performance issues and sync stops working, so I refresh the page. I then get a blank page with "403 Forbidden" in all my browsers and the desktop app. I can't access my notes or the settings page to backup my work during that time. After an arbitrary amount of time (about ten minutes) I regain access.

[moughxyz]

Hmm, sounds like you hit an infinite loop somehow and got timed out by the server. Which editor were you using when this happened? Just the plain editor or one of the specialty editors?

[Ruin0x11]

It was the plain editor, in the web and desktop versions.