It doesn't work either in Outlook2013 in the way described, but i found a workaround that might be applicable also in Outlook2016:
Goto File-> Account Settings -> Account Settings -> Internet Calender -> New... -> enter the subscription url.
It will show a certificate warning and after confirmation, show the calender in "other calenders".
Badges are a great way to show off community activity, whether you’re a newbie or a Champion.Learn more
...staring into the background. Once the image pops out in 3D, you can look around the picture and enjoy. If you will see if you are a true illusion master! :) You did it? :) Wow! Awesome! As a bonus...
Connect with like-minded Atlassian users at free events near you!Find a group
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no AUG chapters near you at the moment.Start an AUG
You're one step closer to meeting fellow Atlassian users at your local meet up. Learn more about AUGs