fix(module,app): handle hosts without port

internal/agent/controller/app/server.go

@@ -202,10 +202,7 @@ func unexpectedHostRedirect(hostTarget string, acceptedHostPatterns ...string) f
 		fn := func(w http.ResponseWriter, r *http.Request) {
 			host, port, err := net.SplitHostPort(r.Host)
 			if err != nil {
-				logger.Error(r.Context(), "could not split host/port", logger.E(errors.WithStack(err)))
-				http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
-
-				return
+				host = r.Host
 			}
 
 			matched := wildcard.MatchAny(host, acceptedHostPatterns...)