Confluence will prompt users to authenticate even when the Google document is public

Summary

When embedding Google Documents in Confluence, even that the same is public Confluence will prompt users to authenticate.

Steps to Reproduce

1. Make sure to have a Google document on the drive (https://drive.google.com/drive/u/1/my-drive)
2. Make sure to have the Google Drive add-on for Confluence installed
3. On the Google side, either have the document Public on the Web (Anyone on the internet can find and access) or Anyone with the Link link sharing configured
4. Try to have access without using a Google account or any Confluence account

Expected Results

Be able to view the document as an anonymous user or without any kind of authentication

Actual Results

Confluence will prompt user to authenticate in a Google account in order to see the document
 

Workaround

There is no workaround at the moment