var net/http.ErrSkipAltProtocol

4 uses

	net/http (current package)
		http2.go#L441: 			err = ErrSkipAltProtocol
		transport.go#L644: 		if resp, err := altRT.RoundTrip(req); err != ErrSkipAltProtocol {
		transport.go#L892: var ErrSkipAltProtocol = internal.ErrSkipAltProtocol

	golang.org/x/net/http2
		transport_wrap.go#L99: 		return nil, http.ErrSkipAltProtocol