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net: don't attempt DNS on .onion addresses #13705
(Now that .onion addresses are an official TLD)
And ".local." too, as per RFC 6762.
The discussion goes on at IAB/IESG like https://tools.ietf.org/html/draft-adpkja-dnsop-special-names-problem and https://www.icann.org/en/system/files/files/name-collision-mitigation-final-28oct15-en.pdf. Hope the consensus will be landed safely.