fix(module,app): use whole remote address if splitting fail

pkg/module/app/mount.go

@@ -73,12 +73,7 @@ func (h *Handler) serveAppURL(w http.ResponseWriter, r *http.Request) {
 
 	from := req.From
 	if from == "" {
-		host, _, err := net.SplitHostPort(r.RemoteAddr)
-		if err != nil {
-			logger.Warn(ctx, "could not split remote address", logger.E(errors.WithStack(err)))
-		} else {
-			from = host
-		}
+		from = retrieveRemoteAddr(r)
 	}
 
 	url, err := h.repo.GetURL(ctx, appID, from)
@@ -110,3 +105,12 @@ func Mount(repository Repository) MountFunc {
 		r.Post("/api/v1/apps/{appID}/url", handler.serveAppURL)
 	}
 }
+
+func retrieveRemoteAddr(r *http.Request) string {
+	host, _, err := net.SplitHostPort(r.RemoteAddr)
+	if err != nil {
+		host = r.RemoteAddr
+	}
+
+	return host
+}