CSOM Script is not working on Office 365 vNext site (Authentication in Azure with federating on- premise Active Directory)

Hi

We have an Office 365 site that is moved to vNext and is being authenticated with Azure (by federating with an on-premise Active Directory) . We tried to access the Client context using "SPOnlineCredential" class and "Network Credentials", but it throws an error with either of the options and doesnt allow to create the context object.

Has anyone observed such a scenario and how was the Client Context created and made to work?

Any help would be appreciated.

Thanks

Vijay