From cc5a3a56c8ac5282a1e60f7c7ed16bef9ed009ae Mon Sep 17 00:00:00 2001
From: ben-lu-uw <b54lu@uwaterloo.ca>
Date: Wed, 29 Sep 2021 14:42:16 -0400
Subject: [PATCH] Fix issue
 https://github.com/Maps4HTML/Web-Map-Custom-Element/issues/469

---
 src/mapml/handlers/ContextMenu.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/mapml/handlers/ContextMenu.js b/src/mapml/handlers/ContextMenu.js
index c6cd88603..2b88a2d46 100644
--- a/src/mapml/handlers/ContextMenu.js
+++ b/src/mapml/handlers/ContextMenu.js
@@ -433,7 +433,7 @@ export var ContextMenu = L.Handler.extend({
       this._layerClicked = undefined;
       this._showAtPoint(e.containerPoint, e, this._container);
     }
-    if(e.originalEvent.button === 0){
+    if(e.originalEvent.button === 0 || e.originalEvent.button === -1){
       this._keyboardEvent = true;
       this._container.firstChild.focus();
     }