Today I killed my campaign with a stupid roll command /r 100d0rr<2 The roll request crashed but after some seconds it loaded a gigantic amount of '0' rolls into my chat history, ram usage of my tab raised to 2gb. Most browsers of the other players crashed. I never thought this command would do anything. Reloading the tab doesn't change anything - it would still load the gigantic chat history. Pro tip: Don't try it. Workaround: Clearing chat history. I think DM's can clear the whole chat history. Google Chrome 86.0.4240.198