https://www.android-enjoyed.com/js/prototype/window.js
http://www.bembos.com.pe/js//prototype/window.js?q=77
https://www.fraserhart.co.uk/js/prototype/window.js?0f8fa2f5fda42d7c0890743e93685ed9
http://www.livieandluca.com/js/prototype/window.js