− | * On any page on "instance of" "interface button" , test whether the save function to localstorage works ( whether input data persists after page reload / browser restart ) | + | * On any page on "instance of" "interface button" , test whether the save function to localstorage works ( whether input data persists after page reload / browser restart ). Cross platform/browser compatibility should include Firefox, Chrome under Android, Firefox, Chrome under Windows 10, Safari, Firefox, Chrome under MacOS and as well as under iOS |