Authentication for Private App in Experience Builder Developer

05-25-2021 02:08 PM
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MVP Esteemed Contributor

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.
Code: 400

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?

- Josh Carlson
Kendall County GIS
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