code: function() {
  						// Hide the iframe to get real size of the holder. (#8941)
  						contentSpace.setStyle( 'width', '100%' );
  
  						iframe.hide();
  						iframe.setSize( 'width', contentSpace.getSize( 'width' ) );
  						contentSpace.removeStyle( 'width' );
  						iframe.show();
  					}
docs: Webkit: iframe size doesn't auto fit well. (#7360)