* 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:
HOMICRON, a NASA physicist whose body is inhabited by a powerful alien. STARLOCK, the former servant of awesome cosmic entities, now a fugitive. FUTURAm a mysterious woman from another dimension. JALEB, the secretive agent of a race of telepaths. JAYDEE, the deadliest killing machine in the universe. These are the STRANGERS, brought together by TANKA, an "invariant" empowered by an unfathomably distant future to safeguard our world.