* 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:
Back in 1978, the rally cry of "no future" echoed throughout the disenfranchised streets of London, screamed by angry youth that believed there truly was none. John Constantine saw otherwise and the punk rocker/magic man is bent on discovering what the future holds. "Lapdogs and Englishmen" part 2.