diff --git a/core/modules/utils/dom/dom.js b/core/modules/utils/dom/dom.js
index 6ba1a04d8..ad412af71 100644
--- a/core/modules/utils/dom/dom.js
+++ b/core/modules/utils/dom/dom.js
@@ -268,7 +268,10 @@ exports.copyStyles = function(srcDomNode,dstDomNode) {
 /*
 Copy plain text to the clipboard on browsers that support it
 */
-exports.copyToClipboard = function(text = "",options = {},type = "text/plain") {
+exports.copyToClipboard = function(text,options,type) {
+	var text = text || "";
+	var options = options || {};
+	var type = type || "text/plain";
 	var textArea = document.createElement("textarea");
 	textArea.style.position = "fixed";
 	textArea.style.top = 0;