diff --git a/cmd/testapi/main.go b/cmd/testapi/main.go
index cacae48..3bb5cc7 100644
--- a/cmd/testapi/main.go
+++ b/cmd/testapi/main.go
@@ -82,7 +82,7 @@ func isV1(r *http.Request) bool {
 }
 
 func isWS(r *http.Request) bool {
-	return r.URL.Path == "/ws"
+	return r.URL.Path == "/ws" || strings.HasPrefix(r.URL.Path, "/ws/")
 }
 
 func (s *S) serveStatic(w http.ResponseWriter, r *http.Request) error {
@@ -137,7 +137,7 @@ func (s *S) serveWS(httpw http.ResponseWriter, httpr *http.Request) error {
 		return err
 	}
 
-	return nil
+	return fmt.Errorf("not impl")
 }
 
 func (s *S) serveV1(w http.ResponseWriter, r *http.Request) error {