Test on one device of your choice. Navigate to the course search page. Enter a search. Go back and enter the page again. Check that when the search box is focused a list of items in the history is displayed. Check that clicking on it performs the selected search. Check you can only have 10 items in the search history. Go to a different search page, ie. Messages. Check there you have a different search history. Side note: Each glossary will have a different search history. However all course participants search will have the same history.