FWIW, this question came up again and I just retested, and it really is
problematic as it is. Take a look at
https://digitaldatatactics.com/test/testGlobalVars.html, which walks
through the problems, which essentially boils down to:Global Variables
only evaluate once, on page view, which is bad if you use clearVars, and
particularly bad on a single page app.Global Variables don't get added
to linkTrackVars and won't appear in any s.tl beacons.I have plenty of
workarounds, all of which basically ...