cody on Nostr: Its URL complies with the standard, and the trailing xxx.onion is part of the URL ...

Its URL complies with the standard, and the trailing xxx.onion is part of the URL pathname. I cannot identify it as an onion URL. If I simply classify all URLs containing "onion" as onion relays, some normal relays with "onion" in their domain names might also be misclassified as onion relays.

Edge cases like these are impossible to cover completely. An error in one client should not be the burden of other clients.