http://www.lufthansa.com/layout/r165/static/lh/res/js/polyfills_ie.js
http://www.lufthansa.com/layout/r168/static/lh/res/js/polyfills_ie.js
http://www.miles-and-more.com/layout/r166/static/mam/res/js/polyfills_ie.js
http://www.miles-and-more.com/layout/r168/static/mam/res/js/polyfills_ie.js