var net/http.ErrNotSupported

9 uses

	net/http (current package)
		h2_bundle.go#L7290: 		msg.done <- ErrNotSupported
		h2_bundle.go#L7303: 			return 0, ErrNotSupported
		request.go#L55: 	return pe == ErrNotSupported && err == errors.ErrUnsupported
		request.go#L65: 	ErrNotSupported = &ProtocolError{"feature not supported"}
		responsecontroller.go#L146: 	return fmt.Errorf("%w", ErrNotSupported)
		server.go#L3877: 	return ErrNotSupported

	net/http/httputil
		reverseproxy.go#L757: 	if errors.Is(hijackErr, http.ErrNotSupported) {

	golang.org/x/net/http2
		server.go#L3194: 		msg.done <- http.ErrNotSupported
		server.go#L3207: 			return 0, http.ErrNotSupported