code: function styleToAll() {
      // sometimes, setStylesheet fails upon loading
      printStyleSheet = printStyleSheet || getPrintStyleSheet();
      $printStyleSheetLink = $printStyleSheetLink || getPrintStyleSheetLink();
      // Chrome:
      printStyleSheet.media.mediaText = 'all';
      // Firefox:
      $printStyleSheetLink.attr( 'media', 'all' );
      return !!printStyleSheet;
  }
docs: Applies the print stylesheet to the current view by changing stylesheets media property to 'all'