* 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:
When someone is targeting the lucky for death, it won't take long before the luckiest X-Man, Longshot, is in the killer's sights. But things quickly go from bad to worse as super heroes, villains, all of S.H.I.E.L.D. and even cosmic entities have it out for our boy! Is Longshot finally in over his head, or can he beat the odds and save the Marvel Universe when no one else can?