Support for authentication mechanism using identity server

[GopalZadafiya]

• I am trying to implement Outlook web add-in support for Exchange 2013 accounts in Outlook web app
• Our add-in is working completely fine with Office 365, Outlook Desktop and Mobile as well.
• As per my research Dialog API is not supported for my requirement, So I have to go for some classic popup mechanism.
• For authentication we have identity server with Azure AD and ADFS as a external identity provider
• So we are protecting our web API using identity server.
• We have Angular 6 SPA that redirects to Identity Server for authentication.
• So I am thinking to implement the same for my requirement
• But in popups redirection to identity server is being blocked

So my question is will this approach work for my requirement ?