* 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:
Guided by a mysterious voice through a night of carnage, you know the worst of it is still coming. After all, every step of the way home has been a fight for your life, against a whole world out for your blood. Any nightmare could be waiting for you around the next corner. The terrifying conclusion to a night of carnage, with the trail of blood leading right to your own front door!