Forum Discussion
Getting the Office 365 Private CDN to work
https://dev.office.com/blogs/general-availability-of-office-365-cdn and tested out the CDN feature in a SharePoint Online tenant with first release. I enabled both the public and private CDNs, cr...
Yep we got it to work as well but like you said its only for images in publishing pages which is a little limiting. Ideally we would like that ability to have this available in SPFx and other web parts so that we can take advantage of the speed.
VesaJuvonen
Microsoft
Microsoft"Ideally we would like that ability to have this available in SPFx and other web parts so that we can take advantage of the speed."
Challenge with private CDN is the changing URL. You can though always use public CDN for the needed JS files for your client-side web parts. These are anyway static JS files, which do not contain any keys or content, so there's no risk for data leak due the anonymous nature of public CDN option.