define([ "../var/support" ], function( support ) { (function() { var i, eventName, div = document.createElement( "div" ); // Support: IE<9 (lack submit/change bubble), Firefox 23+ (lack focusin event) for ( i in { submit: true, change: true, focusin: true }) { eventName = "on" + i; if ( !(support[ i + "Bubbles" ] = eventName in window) ) { // Beware of CSP restrictions (https://developer.mozilla.org/en/Security/CSP) div.setAttribute( eventName, "t" ); support[ i + "Bubbles" ] = div.attributes[ eventName ].expando === false; } } // Null elements to avoid leaks in IE. div = null; })(); return support; });