In logoutUser function, redirectUrl may fire before customCallback completes

[JillElaine]

Original issue was filed by user RAD-X under incorrect fork of this script: josebalius#5 (comment)

RAD-X: "If I use $.fn.idleTimeout().logout(); in logout link, then href action is faster than script. So the user isn't never logged off and logout page keeps reloading.
In your example probably works only because you use "target="_blank" or something similar.
Suggested fix: Add a "return false;" or something similar into fn logoutUser."