* 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 NICK SAX - a corrupt, intoxicated ex-cop turned hit-man, adrift in a stinking twilight world of casual murder, soulless sex, eczema and betrayal. With a hit gone wrong, a bullet in his side, the cops and the mob on his tail, and a monstrous child killer in a Santa suit on the loose, Nick and his world will be changed forever this Christmas. By a tiny blue horse called Happy...