From e45d125ae9275e7312e40b5bcabda5a36b73d4fc Mon Sep 17 00:00:00 2001
From: phiresky <phireskyde+git@gmail.com>
Date: Sat, 25 Mar 2017 21:02:25 +0100
Subject: [PATCH] remove functiongraph on unmount

---
 src/JXGBoard/FunctionGraph/FunctionGraph.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/JXGBoard/FunctionGraph/FunctionGraph.js b/src/JXGBoard/FunctionGraph/FunctionGraph.js
index e03b45c..611662c 100644
--- a/src/JXGBoard/FunctionGraph/FunctionGraph.js
+++ b/src/JXGBoard/FunctionGraph/FunctionGraph.js
@@ -21,6 +21,10 @@ export class FunctionGraph extends Component {
         }
     }
 
+    componentWillUnmount() {
+        this.context.board.removeObject(this.functionGraph);
+    }
+
     //called only if shouldComponentUpdate returns true
     //use to render any child elements
     render() {