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sendBeacon without having to pass the excecution context around, I might use this as my amplitude transporter 
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2a06:98c0:3600::103 (regardless of anything else, always that IPv6)BBInvalid IP address: >2a06:98c0:3600::103.
. It's a decently big international service though, so not sure why we are the only ones hitting it with our WorkersCBCIf I understand correctly, would they need to enable "Pseudo IPv4" on their Cloudflare account then?
CIn cross-zone subrequests from one Cloudflare zone to another Cloudflare zone, the CF-Connecting-IP value will be set to the Worker client IP address '2a06:98c0:3600::103' for security reasons.
BCF-Connecting-IP, even though they don't have IPv6 set up.BCI see, that's very helpful! So this is an edge case, since we are both using Cloudflare Workers (I'm assuming they are), but they are on a different zone, they get the internal worker IPv6 address in CF-Connecting-IP, even though they don't have IPv6 set up.Yep
If I understand correctly, there is no easy fix for this on both our sides right?I thought about it again and tested it, and Psuedo IPv4 does convert the Worker's IPv6 into a Class-E IPv4, but it's not an easy fix and has a lot of drawbacks of its own. Some legacy systems require IPv4 for fraud reasons or do GeoIP lookups, both of which would fail. Having non-real IPv4s in logging/analytics systems is messy as well if trying to understand/piece together logs or build reports.
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Capi.something.com. And then I set up SaaS hostnames for it. In order to do that, I set up a route */* in order to match all of the requests.other-api.something.com . (Because the */* route is taken). Is that expected?*/*). But that would be ~ 1 route per custom hostname. Is that expected or advisable to write that many routes? */* is a nice solution, but it only works once per Zone. Which means one SaaS worker per zone 
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LCLLCCLCLCCI have mine set to 1,500 per minute (per key) and I have some cases where I'm seeing 10x that (15k per minute - assumed to be per key)Is the traffic distributed? Rate limiter is per Cloudflare location/pop
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sendBeacon2a06:98c0:3600::103Invalid IP address: >2a06:98c0:3600::103CF-Connecting-IPapi.something.com*/**/**/**/*other-api.something.com