const golang.org/x/net/idna.disallowedSTD3Mapped
2 uses
golang.org/x/net/idna (current package)
idna.go#L663: case disallowedSTD3Mapped: // only happens for pre-Unicode 16
trieval.go#L67: disallowedSTD3Mapped category = 2
The pages are generated with Golds v0.8.4. (GOOS=linux GOARCH=amd64)