See the linked MDLQA issue.
Note the comment that it is impossible to make this work in all browsers due to poor JS event support.
-please test on 21, 22 and master.
Opera and Firefox allow Copy&Paste in Quiz (MDLQA-1968). There is no pop-up displaying saying it´s prohibited to paste text in the quiz.
CLONE - A teacher can set a quiz to display in a full-screen popup
Error rendering 'clockify-timesheets-time-tracking-reports:timer-sidebar'. Please contact your Jira administrators.