diff --git a/vendor/assets/javascripts/jquery.js b/vendor/assets/javascripts/jquery.js
index c5c64825..a92abc45 100644
--- a/vendor/assets/javascripts/jquery.js
+++ b/vendor/assets/javascripts/jquery.js
@@ -5371,8 +5371,7 @@ jQuery.Event = function( src, props ) {
 
 		// Events bubbling up the document may have been marked as prevented
 		// by a handler lower down the tree; reflect the correct value.
-		this.isDefaultPrevented = ( src.defaultPrevented || src.returnValue === false ||
-			src.getPreventDefault && src.getPreventDefault() ) ? returnTrue : returnFalse;
+		this.isDefaultPrevented = ( src.defaultPrevented || src.returnValue === false ) ? returnTrue : returnFalse;
 
 	// Event type
 	} else {