I've just installed the enterprise eval version 3.3.2. First thing I did was upgrading to 3.3.3, after the upgrade I see the following error in the console:
ERROR 2018-03-08T13:31:10,706 (org.springframework.web.socket.server.support.AbstractHandshakeHandler.handleInvalidUpgradeHeader:285) - Handshake failed due to invalid Upgrade header: null
What happend, do I need to take any actions beside a "ma.sh restart"?
EDIT: A "ma.sh restart" doesn't solve the problem