* 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:
Batman '66 Meets the Legion of Super-Heroes (2017-) #1
In pursuit of the time-traveling criminal known as Universo, the super-powered kids from the 30th century travel back to the 1960s to enlist the aid of the “greatest teen superhero ever”--Robin, the Boy Wonder! But Batman’s hard-boiled nemesis Egghead has stolen one of the Legion’s unattended time bubbles and taken off to the 2900s. Looks like Batman has to head to the far-flung future with one group of heroes while Robin stays in the swinging sixties with another. Holy time-travel paradox!