I know it, you know it, we all know it, Backstage can only be viewed on the University network.
Here is some language to copy and paste into emails for those clients that may need a gentle reminder of how this all works.
Please note: You are reviewing a page in a development environment that only works on the University network, it is not available to the public. Do not distribute the "backstage.cehd.umn.edu" preview address, it will not work for people off campus.