Prerequisites: Test with both NVDA (Windows) and VoiceOver (macOS). You need the WAVE browser extension Your website URL has to be https Test 1 (to be tested with both NVDA and VoiceOver) Log in as admin Go to your edit profile page From the Atto editor in the 'Description field' click on the first Atto button to expand the Atto toolbar From the Atto editor in the 'Description' field, click on the 'insert character' button Verify that the screen reader reads the content of the dialog Verify that the first button is focused Close the 'insert character' dialog From the Atto editor in the 'Description' field, click on the 'Accessibility checker' button Verify that the screen reader reads the content of the dialog Verify that the close button is focused close the accessibility checker dialog From the Atto editor in the 'Description' field, click on the 'Screenreader helper' button Verify that the screen reader reads the content of the dialog Verify that the close button is focused From the Atto editor in the description field, click on the 'record audio' button Close the record audio dialog Verify that the focus is moved back to the 'record audio' button in the Atto toolbar From the Atto editor in the description field, click on the 'record video' button Close the record video dialog Verify that the focus is moved back to the 'record video' button in the Atto toolbar From the Atto editor in the description field, click on the 'emoji picker' button Verify that when the emojis are loaded, the focus is put on the 'search' text box From the Atto editor in the description field, click on the 'manage files' button Verify that when the file manager component is loaded, the focus is put on the 'Add...' button Test 2 Log in as admin Go to your edit profile page From the Atto editor in the 'Description' field, click on the 'insert or edit image' button Press the WAVE extension's button Verify that there is no "Broken ARIA reference" error on the page (ignore the errors that are for non-visible elements) Go to "Site administration > Language > Language packs" Install an additional language if you only have English Select a language other than English from the "list of installed language packs" and click on the "Uninstall selected language pack(s)" button Verify that a confirmation dialog is opened Leave the dialog open and press on the WAVE extension's button Verify that there is no "Broken ARIA reference" error on the page Refresh the page Select "English" from the "list of installed language packs" and click on the "Uninstall selected language pack(s)" button Verify that a dialog is opened Leave the dialog open and press on the WAVE extension's button Verify that there is no "Broken ARIA reference" error on the page Refresh the page Open your browser's developer tools window and go to the console tab Execute the following command in console Y.use('moodle-core-notification-exception', function() { new M.core.exception({name: 'Title', message:'Message'}); }); Verify that a dialog is opened Leave the dialog open and press on the WAVE extension's button Verify that there is no "Broken ARIA reference" error on the page Refresh the page Execute the following command in console Y.use('moodle-core-notification-ajaxexception', function() { new M.core.ajaxException({name: 'Title', error:'Error'}); }); Verify that a dialog is opened Leave the dialog open and press on the WAVE extension's button Verify that there is no "Broken ARIA reference" error on the page