* 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:
A “Superman Reborn Aftermath” tie-in! Superman and Supergirl meet again for the first time to face the evil of the Emerald Empress! Plus, what does it mean for the Girl of Tomorrow when tomorrow promises a Dark Knight? Shocking revelations, all-powerful sorceresses from the future, the Batgirl of Burnside and dinner in the Wild West—they’re all here in this amazing issue!