Whitelist github.com from Auto cookie clearing. Takes less time than a rant on SO. I had a guy at work ask me to store the entire state of an internal web site in the URL. He went so far to go and get his change request approved by management, resources and time allocated. When it was passed to me to implement and I dug into why he wanted this, turned out he was auto clearing his cookies. I told him to whitelist our internal website from his cookie clearing Paranoia and stop wasting my time and company money.