From 3d85d606fdd1d9d3819749115d9e05bef9b50a92 Mon Sep 17 00:00:00 2001
From: Kai <kai@mynetmapper.org>
Date: Thu, 4 Feb 2021 07:39:48 +0100
Subject: [PATCH] fail more gracefully on empty TSV file

---
 neat.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/neat.js b/neat.js
index 7b64f14..b52c66d 100644
--- a/neat.js
+++ b/neat.js
@@ -48,6 +48,8 @@ function loadFile(evt, onComplete) {
 
 function setupInterface(data, file, urls) {
 
+    if (data.data.length <= 0)  return null;
+
     // private variables of app
 
     let displayRows=15