Fix heatmap colors for Chrome/Safari (#5421)

diff --git a/public/js/index.js b/public/js/index.js
index 6952cec7f6fb0518b7a6d27b782d03e9b0e91c2b..d65419f2ac1aa080483fd6f5dd8582959dd05cdc 100644 (file)
--- a/public/js/index.js
+++ b/public/js/index.js
@@ -2363,8 +2363,13 @@ function initHeatmap(appElementId, heatmapUser, locale) {
             getColor: function(idx) {
                 var el = document.createElement('div');
                 el.className = 'heatmap-color-' + idx;
+                document.body.appendChild(el);
 
-                return getComputedStyle(el).backgroundColor;
+                var color = getComputedStyle(el).backgroundColor;
+
+                document.body.removeChild(el);
+
+                return color;
             }
         },