/**
 * Group: DOM polyfills
 * Target browsers: `IE11`, `Edge <= 18`
 * Node.isConnected polyfill
 */ if ( ! ( 'isConnected' in Node . prototype ) ) { Object . defineProperty ( Node . prototype , 'isConnected' , { get ( ) { return ! this . ownerDocument || ! ( this . ownerDocument . compareDocumentPosition ( this ) & this . DOCUMENT_POSITION_DISCONNECTED ) ; } } ) ; }