Make the iframe not focusable by using tabIndex of -1

diff --git a/src/core/core.helpers.js b/src/core/core.helpers.js
index 6f634fa7c93e5862d56a845b64bd8cac1937d7ca..fa0842fa7fead1b586ab3b3247f2732decdb0dc9 100644 (file)
--- 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';