From bef024e4eb3026c1cf3eb33f56b4cf6bb06e250a Mon Sep 17 00:00:00 2001
From: Alexander Zobnin <alexanderzobnin@gmail.com>
Date: Mon, 11 Mar 2019 11:58:15 +0300
Subject: [PATCH] heatmap: fix error when series empty

---
 public/app/plugins/panel/heatmap/heatmap_ctrl.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/public/app/plugins/panel/heatmap/heatmap_ctrl.ts b/public/app/plugins/panel/heatmap/heatmap_ctrl.ts
index 71e059a5750..0f44dbd477b 100644
--- a/public/app/plugins/panel/heatmap/heatmap_ctrl.ts
+++ b/public/app/plugins/panel/heatmap/heatmap_ctrl.ts
@@ -146,7 +146,7 @@ export class HeatmapCtrl extends MetricsPanelCtrl {
   }
 
   onRender() {
-    if (!this.range) {
+    if (!this.range || !this.series) {
       return;
     }