Thanks @pfaffman
iCloud may have been a false alarm; I’ve had an additional report from a Chrome user also seeing this. Surprisingly, this issue has only just started to occur, despite no changes to server configuration etc. (running 2.9.0.beta9), so I’m wondering why this has started to occur.
You can override that setting with an env variable
Meaning, I can set ip_10_secs_limit as an env variable on the server? Is this all lower cased, does it need a prefix? I was confused because the error message showed ip_10_secs_limit, but the Discourse source code showed GlobalSetting.max_reqs_per_ip_per_10_seconds, so I’m not sure which variable name to use.
Thanks again!