* 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:
Meet Billy Black, an 80s hardcore scene refugee who's having a bit of trouble acclimating to modern life. While bludgeoning a band of Burning Man refugees with the skull of Jerry Garcia, Billy inadvertently becomes immersed in an evil Nazi conspiracy to turn the world into mindless hippie zombies in order to usher in the 4th Reich. "Hitler in Jerry Garcia's corpse how can you say no?"-- Warren Ellis