* 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:
Listen to what fans are screaming about our full color reprints of banned 1950s comics: "The dead walk again in Haunted Horror!"-Martin Hirchak "Haunted Horror is absolutely disgusting, gory, & VERY entertaining!"-Tommy Stanziola "From straight A student to teen junkie, the stories in this ghoulish gallery made me the man I am today!"-Ghastly Gilbert Smith "The stories the Comics Code Authority didn't think you could handle!"-Sean MacLellan