FYI Add-in is not working or only shows a blank window in Outlook or Office online

Issue
In Outlook or Office online, the FYI Add-in is not working. The FYI icon is displayed, but when clicked, a spinning loading circle is displayed for a few seconds and then goes blank.

Cause
Your browser settings are blocking third-party cookies.

Solution
Set your browser to allow third-party cookies.

1. In Chrome, go to the menu and select Settings.
2. Scroll down to Cookies and other site data.
3. Click Allow all cookies to enable it.