I have an internal web application that I built for one of our departments. The maps, layers, etc., contained in it are all shared with a Group only, so when an anonymous user attempts to access it, it prompts for sign-on.
I've followed all the steps in the Deployment article for adding the clientID to the application.
Within the Experience, I have a table widget, and the underlying data allows exporting. When my users first open the app and sign in, attempting to export features results in a popup window with the following message:
Error: Output format not supported.
The URL of the popup window is:
If the page is refreshed, the problem simply goes away.
Any clues as to why this is happening and how to fix this? Have I implemented the authorization incorrectly?