I tried to find the answer to this question. I've combed forums and stackoverflow and I'm still at a loss for how to get a web app to work outside of my own domain.
Change Admin Share Settings
I've read here and in other places go to Admin Console > Apps > Drive and Docs > Sharing Options
All the ones mentioned are checked:
- "Invitations to people outside of domain who are not using a google account"
- "Allow users in domain to publish files visible to the world as public or unlisted"
Publishing App
Made sure to avoid these pitfalls:
- "Anyone, even anonymous"
- Execute the app as "Me"
- Made sure to create a new web app to avoid the caching issues
Yet I still cannot see it if not logged in as a user attached to the domain. It's just a simple "hello world" test to simplify the code, but I still get blocked. Seeing..
Any help would be greatly appreciated. Thank you to the community for all the other answers that at least put me to knowing most of the potential issue.
It turns out that I'm at fault. It's never user error, right?! You can't just copy the web URL at this stage:
You have to go to it then copy the redirected URL for anonymous access.
My redirect URL looked more like https://script.google.com/a/macros/...