* 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:
Meet the ultimate slacker superhero for the 21st Century! Jasper Jenkins is a super-head AND a super-hero! He's relatable AND reliable and he's embarking on the adventure of a lifetime! The sensational debut of the new feel-good hero of the decade! You can't afford to miss it!