shell bypass 403
define( [
"../core",
"../var/documentElement",
"../selector" // jQuery.contains
], function( jQuery, documentElement ) {
"use strict";
var isAttached = function( elem ) {
return jQuery.contains( elem.ownerDocument, elem );
},
composed = { composed: true };
// Support: IE 9 - 11+, Edge 12 - 18+, iOS 10.0 - 10.2 only
// Check attachment across shadow DOM boundaries when possible (gh-3504)
// Support: iOS 10.0-10.2 only
// Early iOS 10 versions support `attachShadow` but not `getRootNode`,
// leading to errors. We need to check for `getRootNode`.
if ( documentElement.getRootNode ) {
isAttached = function( elem ) {
return jQuery.contains( elem.ownerDocument, elem ) ||
elem.getRootNode( composed ) === elem.ownerDocument;
};
}
return isAttached;
} );