When an exam is interrupted due to the user visiting a different URL or forcibly closing the tab/window, the exam is still active. While this behavior isn't desired, an alternative doesn't yet exist. In any case, the only way for the user to return to that attempt is by explicitly visiting the URL associated with the attempt. Most users won't notice what the URL for the attempt will be or have the intuition to find the URL through their browser history. A better way would be to have a button (similar to the Attempt Quiz button in that it opens the setup modal) for continuing an attempt. Once setup is complete, it will redirect to the in-progress attempt instead of creating a new one.
When an exam is interrupted due to the user visiting a different URL or forcibly closing the tab/window, the exam is still active. While this behavior isn't desired, an alternative doesn't yet exist. In any case, the only way for the user to return to that attempt is by explicitly visiting the URL associated with the attempt. Most users won't notice what the URL for the attempt will be or have the intuition to find the URL through their browser history. A better way would be to have a button (similar to the Attempt Quiz button in that it opens the setup modal) for continuing an attempt. Once setup is complete, it will redirect to the in-progress attempt instead of creating a new one.