* 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:
"Sleepover": Veronica invites Betty, Nancy, and Brigitte over for a sleepover at posh Lodge Mansion, but things go from dreamy to dicey as soon as you can say Cheryl Blossom! It seems the redhead vixen is spying on our gal pals, but they've got some tricks up their nightshirt sleeves as well!