From e5bd1dd11c2d09d80ffe4123e47ce2aa668ba0eb Mon Sep 17 00:00:00 2001
From: shahramk <shahram@newrelic.com>
Date: Tue, 26 Mar 2024 15:24:57 -0700
Subject: [PATCH] fix: change empty string to null character

---
 nerdlets/service-containers/heat-maps.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/nerdlets/service-containers/heat-maps.js b/nerdlets/service-containers/heat-maps.js
index e9da99e..bc30bca 100644
--- a/nerdlets/service-containers/heat-maps.js
+++ b/nerdlets/service-containers/heat-maps.js
@@ -89,7 +89,7 @@ export default class ContainerHeatMap extends React.PureComponent {
     const { entity, infraAccount, selectContainer, containerId } = this.props;
     const { timeRange, where } = this.state;
 
-    if (!infraAccount || !timeRange) return '';
+    if (!infraAccount || !timeRange) return null;
     return (
       <div>
         {HEAT_MAPS.map(({ title, select, formatValue, eventType, max }) => {
@@ -100,7 +100,7 @@ export default class ContainerHeatMap extends React.PureComponent {
           // a heatmap for infra metrics
           // ALSO need a different time window to get accurate values
           if (eventType === 'ProcessSample') {
-            if (!infraAccount) return '';
+            if (!infraAccount) return null;
             accountId = infraAccount.id;
           }