* Client-Side Metrics Include
* Wiki: https://tiny.amazon.com/cpso0wg6
* Needs to be included at the top of pages because it tracks latency--
* ue_t0 needs to be as close to body load as possible.
* - ue.tag maps to URLType dimension of OnlineQueryLog in PMET. Because we cannot add
* custome data to other dimensions in PMET through CSM, we are replicating it thrice to
* cover each store, page type, and the intersections of the two.
* - Whitelists are listed in the usage guide:
'Let the Games Begin!' Part Four: This is it! Mega Man has reached Dr. Wily's stronghold, and now nothing stands between him and the madman! Except the Yellow Devil. And the Copy Robot. And the rebuilt Robot Masters. Good luck, Mega Man! Don't miss the finale to the first arc to this brand new series!