Log in as a teacher in a course Begin the import steps At the last step, that of confirmation, click on the button "Perform import" A confirm dialogue should appear If the "Cancel" or the "Close" button is clicked, the confirm dialogue is closed (this should also work with the Escape and Return keys) If the "Perform backup" is clicked, the confirm dialogue is closed and a progress bar dialogue is displayed with this properties: No "Close" button, so impossible to close it. The animated gif of the progress bar should be animated on all browser The progress bar dialogue should be always centered on the screen when we scroll or resize it. Repeat the steps for backup and restore step. The only differences should be on the backup, restore and import strings. Test this on all supported browsers.