* 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:
"Great Fables Crossover" part 3, continued from JACK OF FABLES #33. The Literals, who literally embody literary notions, may have created all of the Fables plus the universe in which they reside, unbeknownst to our beloved heroes, and the full story on this enigmatic crew of characters begins here! Continued in FABLES #84.