JAVASCRIPT

remove session storage

sessionStorage.removeItem('key');

how to clear session storage

sessionStorage.clear();

clear session storage on refresh

window.onunload = function () {
	sessionStorage.removeItem('key');
}

Remove Session

Response.Cache.SetExpires(DateTime.UtcNow.AddMinutes(-1));
Response.Cache.SetCacheability(HttpCacheability.NoCache);
Response.Cache.SetNoStore();
Session.Abandon();
Session.Clear();