* 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:
READY, A.I.M., FIRE PART 2 Ms. Marvel vs. Wonder Man -- at M.O.D.O.K.'s command! She might want to date him -- but can she stop him from killing her? Prepare for a super hero slugfest high above Seattle!