I'm not sure I fully understand you but the if you leave a page open and the session times out then the request will fail and give TokenMismatchException.
Dec 26, 2016
4
Level 1
TokenMismatchException. The token is.
Error TokenMismatchException. The token is always passed, for the field by default there. This error is displayed after a certain time and the current disappears after I reconnect admin (More users do not have). Some time later, she reappears and account for reconnecting.
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