Issue Summary

When creating a new User Directory of EntraID type, after clicking the "Save and Test" button to save all the configured details and test the connection, the user lands on the error page (see the screenshot attached).

Despite the above error, the Directory is created successfully, and the user data is synchronized successfully. Users from the directory can also log in to Confluence. 

Steps to Reproduce

1. Log in as Admin
2. Go to Confluence Administration -> User Management
3. Go to User Directories
4. Click Add Directory button
5. Select Microsoft Entra ID from the drop-down list, click Next
6. Setup the directory with details
7. Click "Save & Test", and observe the error page.

Expected Results

The page for User Directory testing is opened, and the corresponding tests are successfully executed.

Actual Results

User lands on the error page:

Workaround

None.