From 1f8109e8b8eec735a1ce1bf4be99ff60a618af06 Mon Sep 17 00:00:00 2001
From: Thomas Rudin <thomas@rudin.io>
Date: Fri, 19 Jul 2019 19:52:19 +0200
Subject: [PATCH] preserve scope

---
 static/js/overlays/TrainOverlay.js | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/static/js/overlays/TrainOverlay.js b/static/js/overlays/TrainOverlay.js
index e314170..4bd19ab 100644
--- a/static/js/overlays/TrainOverlay.js
+++ b/static/js/overlays/TrainOverlay.js
@@ -180,14 +180,14 @@ export default L.LayerGroup.extend({
   },
 
   onAdd: function(/*map*/) {
-    this.layerMgr.addListener(this.reDraw);
-    this.wsChannel.addListener("minetest-info", this.onMinetestUpdate);
+    this.layerMgr.addListener(() => this.reDraw());
+    this.wsChannel.addListener("minetest-info", () => this.onMinetestUpdate());
     this.reDraw();
   },
 
   onRemove: function(/*map*/) {
     this.clearLayers();
-    this.layerMgr.removeListener(this.reDraw);
-    this.wsChannel.removeListener("minetest-info", this.onMinetestUpdate);
+    this.layerMgr.removeListener(() => this.reDraw());
+    this.wsChannel.removeListener("minetest-info", () => this.onMinetestUpdate());
   }
 });