In the Clear History drop-down menu, select the time range where you want to clear browsing data.
Click the Clear History button.
To learn more about clearing your cache in Safari, visit Apple Support.
Use Incognito/Private Browser
If clearing your cache and cookies doesn't resolve the problem, something in your browser may be blocking your access to submit your quiz. To verify this, try using Chrome’s incognito or Firefox Private mode.
Try New Browser
If you cannot submit your quiz using an incognito or private browser, try using a different browser. Canvas generally recommends using Chrome or Firefox.
Use Respondus Lockdown Browser
If the above troubleshooting steps still don’t resolve the issue, you may need to use the Respondus Lockdown Browser. Follow these steps to download the browser and use it to submit your quiz.
To download the Lockdown Browser, click the Take Quiz button.
In the new page, click the link to download the Lockdown Browser.
Once downloaded, open the Lockdown Browser on your device.