* 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:
Featuring the bloody return of one of Thor's greatest enemies, Malekith the Accursed! Once the former lord of the Dark Elves is freed from his otherworldly prison, the chase is on across the Nine Realms to capture him and end his vengeful reign of terror!