* 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:
Meet The Wee Wee Brothers in The BunFight At The OK Supermarket, travel south to a Hippie Fest with all the gang, take a tour around Booga's factory, and let Tank Girl show you How To Dress Quite Good. You're a beautiful man, leave normality behind and take a trip with Everybody Loves Tank Girl.