Fix #12610, remove unneeded window.event. Close gh-968.

diff --git a/src/event.js b/src/event.js
index 299f71615f1e39a9211a2f6f506cfd209e64d8aa..f3335a074b691330bea52115f1eb59223e4c6ac3 100644 (file)
--- a/src/event.js
+++ b/src/event.js
@@ -355,7 +355,7 @@ jQuery.event = {
        dispatch: function( event ) {
 
                // Make a writable jQuery.Event from the native event object
-               event = jQuery.event.fix( event || window.event );
+               event = jQuery.event.fix( event );
 
                var i, j, cur, ret, selMatch, matched, matches, handleObj, sel,
                        handlers = ( (jQuery._data( this, "events" ) || {} )[ event.type ] || []),