* 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:
Missing scientists! Plucky girl reporters! Betty and Cliff on the rocks! The mysterious Church of Cosmicism! And who is the sinister Otto Rune? Pulp thrills the way you like them as the Rocketeer comes up against a brand-new adversary in... "The Hollywood Horror!"