From 554f31a1bb9dbf82f26f728832039e1ebf080216 Mon Sep 17 00:00:00 2001
From: Evert Timberg <evert.timberg+github@gmail.com>
Date: Thu, 4 Aug 2016 18:55:32 -0400
Subject: [PATCH] Make the iframe not focusable by using tabIndex of -1

---
 src/core/core.helpers.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/core/core.helpers.js b/src/core/core.helpers.js
index 6f634fa7c..fa0842fa7 100644
--- a/src/core/core.helpers.js
+++ b/src/core/core.helpers.js
@@ -875,6 +875,7 @@ module.exports = function(Chart) {
 		}
 
 		// Set the style
+		hiddenIframe.tabIndex = -1;
 		var style = hiddenIframe.style;
 		style.width = '100%';
 		style.display = 'block';