feature: Basic auth support with fission router (#2292)

pkg/error/httperror.go

@@ -60,6 +60,8 @@ func MakeErrorFromHTTP(resp *http.Response) error {
 		errCode = ErrorRequestTimeout
 	case http.StatusTooManyRequests:
 		errCode = ErrorTooManyRequests
+	case http.StatusUnauthorized:
+		errCode = ErrorNotAuthorized
 	default:
 		errCode = ErrorInternal
 	}