* 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:
The Teen Titans--sidekicks to some of the greatest heroes of the DC Universe--unite once more to battle the astounding Separated Man! Join Robin, Kid Flash, Aqualad and the team's newest member, the Wonder Girl a.k.a. Donna Troy, in her very first comic book appearance!