* 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:
Legacy isn't a dirty word? but it's an irrelevant one. It's not important what their parents did. It matters what they do. Someone has to save the world. Wiccan, Hulkling and Hawkeye unite with Loki, Marvel Boy and Ms. America to do just that!