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-rw-r--r--ui/safe-active-element.js8
1 files changed, 6 insertions, 2 deletions
diff --git a/ui/safe-active-element.js b/ui/safe-active-element.js
index 4d04add5f..9d6968e08 100644
--- a/ui/safe-active-element.js
+++ b/ui/safe-active-element.js
@@ -1,4 +1,6 @@
( function( factory ) {
+ "use strict";
+
if ( typeof define === "function" && define.amd ) {
// AMD. Register as an anonymous module.
@@ -8,7 +10,9 @@
// Browser globals
factory( jQuery );
}
-} ( function( $ ) {
+} )( function( $ ) {
+"use strict";
+
return $.ui.safeActiveElement = function( document ) {
var activeElement;
@@ -37,4 +41,4 @@ return $.ui.safeActiveElement = function( document ) {
return activeElement;
};
-} ) );
+} );