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I have what appears to be a bug related to the one titled "kioskresetstation doesn't work if homepage has a blank title". I am using 12.2
IF a user has 2 tabs open (say: A and B). AND IF the untitled homepage is open in EITHER "A" or "B" AND a user closes either tab, the browser will close and reset (killing all work in the other tab).
Adding the title to the homepage appears to fix this problem. What I haven't tested is if this also occurs when untitled pages (other than the homepage) are open.