If your browser is enabled to allow pages to pre-load in the background for faster performance, Bing may use this functionality and your browser may preload page(s) in the background for faster results. When your browser loads a page in the background, it will have the same effect as if you visited that page, including sending the Bing results page URL (which may contain your search query) and downloading any cookie files that page may set. You can delete cookies using your browser settings. Click here for more information on how to delete cookies and to control pre-loading pages in Internet Explorer 11. 