To give extra context, we want to do this when Network Service is enabled (i.e. where we don't need to worry about interactions with RDHI etc)

Kinuko: can we run it all the time on UI thread (e.g. even when NS is disabled), that way we can convert to NS without changing all the request handlers and throttles?

btw we'll hold off on this until the network service ships. at that point, it'll be a lot easier (as the rest of the code will only be on UI).