* 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:
FEAR ITSELF TIE-IN! The evil forces of the Serpent sweep across the Earth...and it's up to War Machine, the Immortal Iron Fist, and the Weapons of the Seven Capital Cities of Heaven to stop two of the strongest before they lay waste to an entire continent!