* 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:
Getting there's half the problem, as Koj, Serra, and Jarek (and Brad...!) head for Ona-Li, only to be ambushed en route by Malesur's Agents in the turbulent and typhonous land called Torrent!! And as if that weren't bad enough, wait'll they see what's waiting for them when they get there!! ...if they get there!!!