* 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:
It's one hell of a night in an underground restaurant in Manhattan. William Howland's boss bet against him lasting a year as a waiter under him. It's pay-up time. But on this night, Will's code to treat all as they deserve doesn't serve anyone well, and he might not even last the night. And then she walks in…