How to manage multiple accounts login and logout in different browser pages?
问题 I have a website built on App Engine(Java) and need user use Google Account to login. The situation is that: User Adam has multiple accounts. User Adam login with account Adam1 and get his Adam1 data in browser page A. He clicked logout link, but opened it in another tab page B(the same browser of course) He login with another account Adam2 in browser page B get his Adam2 data shown. He then returned to browser page A and made some changes to his data and then send to server, at this time my