Agreed Important to note that by default even in incognito window all sessions in that window (at least in chrome) are persisted. For example closing and openin

Agreed Important to note that by default even in incognito window all sessions in that window (at least in chrome) are persisted. For example closing and opening tabs will resume last session) so this exploit may still work if you have Facebook open in the same incognito browser I've used plugins that further guaranteed a new session between tabs in incognito