Testing Enable MFA in Site admin > Plugins > Admin tools > Multi-factor authentication Enable "Security key" factor Go to preferences Click Multi-factor authentication preferences Click Setup authentificator Add name Click Register authentificator Popup will appear Wait for some time - it will time out Click on the "Register authenticator" again Verify that you see the form again Click on the "Register authenticator" again then click "Cancel" from the form Verify that you see the form again Open console in browser devtool Verify that you don't see any exception thrown Verify that you can see the debug message: "The request timed out or you have canceled the request. Please try again later."