I tried out Office 365 CDN capability feature as per the instruction mention in Office 365 CDN announcement video. I enabled both the public and private Cdn feature and also set libraries as a Cdn origins.
When I refer public Cdn URL for image/JavaScript it works great. When I refer image from private Cdn origin library, its URL doesn't reflect as private Cdn URL. I should get privatecdn.sharepointonline.com as prefix for image instead of asset library path URL.
I also verified list of Cdn origins and they listed out correctly without (configuration pending) indication
Get-SPOTenantCdnOrigins -CdnType Public/Private
Is there a way to make private Cdn works?