Outlook 365 add-in created with angular8 cannot delete cookie created with ngx-cookie-service

Question

I've created an office 365 add-in for outlook.

I'm using Angular8 for the add-in and using ngx-cookie-service to store my authentication token details in the cookie.

I can install the add-in, store the auth token in the cookie and use token stored in cookie to make my service calls. But somehow the outlook desktop client does not delete the cookie using the usual methods (delete cookies in edge, clear outlook cache).

If I use the browser, the behavior is as expected. When I delete cookies (in all of IE Edge, FF and Chrome), I'm asked to login again. Outlook desktop client though just redirects me to the home page

Any suggestions what I could be missing?

Answer 1

Suggestion by Outlook Add-ins Team - MSFT works as expected