From 495158b9c9c88e858c526217e46ac63f7899aa6d Mon Sep 17 00:00:00 2001
From: devlearner <devlearner@users.noreply.github.com>
Date: Mon, 8 Jan 2018 07:49:32 +0000
Subject: [PATCH] Fix charts in IE

since IE apparently doesn't support arrow function expression (and throws a syntax error)
---
 public/js/ff/charts.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/public/js/ff/charts.js b/public/js/ff/charts.js
index a67009b729..aa01a761fd 100644
--- a/public/js/ff/charts.js
+++ b/public/js/ff/charts.js
@@ -88,7 +88,9 @@ const verticalLinePlugin = {
 
     afterDatasetsDraw: function (chart, easing) {
         if (chart.config.lineAtIndex) {
-            chart.config.lineAtIndex.forEach(pointIndex => this.renderVerticalLine(chart, pointIndex));
+            chart.config.lineAtIndex.forEach(function(pointIndex) {
+                this.renderVerticalLine(chart, pointIndex);
+            }, this);
         }
     }
 };