* 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:
Despite vowing not to take sides in a civil unrest, Superman finally must decide on whether he maintains his neutrality--or takes up arms. Will he choose the right side to defend? Can he trust those he's sworn to protect? Meanwhile, an unstoppable monster has its sights set on The Man of Steel!