sessionStorage on IE 11(Edge) got cleared when user navigate away
This might be related to Zone policies in IE/Edge;
https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/13861050/
Session Storage and InPrivate Local Storage is dropped when redirecting across zones. For example, if as a part of your redirection chain you redirect from the intranet to internet, Microsoft Edge will not retrieve the expected session storage data. This issue also exists for local storage in InPrivate mode.