func golang.org/x/net/http/httpguts.ValidHeaderFieldName

2 uses

	golang.org/x/net/http/httpguts (current package)
		httplex.go#L196: func ValidHeaderFieldName(v string) bool {

	golang.org/x/net/internal/httpcommon
		request.go#L347: 		if !httpguts.ValidHeaderFieldName(k) && k != ":protocol" {

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