Thanks for the heads up. I looked at mine and it seems like the major of the events in localstorage are getting sent successfully as my adblocker isn't blocking the medium activity or batch API calls, however the lightstep events are blocked and stuck in my localstorage.
As an aside, I'm appalled they'd do this as I'm a paying customer of their service, but as an engineer I have to respect the work & ingenuity that went into this solution.