Create a course and enrol a few users in it. Go into the course and click on the "reports" from the primary navigation. Go to the "Users report" (from the secondary navigation menu) Open the browser's console Execute the following statement in the console setInterval(function() {     document.querySelector( 'div[aria-label="Select a user"]' ).click(); }, 5 ); Verify that you see a drop-down constantly appearing and disappearing Wait for about 10 seconds and verify that no warning is shown on the page