Thank you for the continued feedback on this request. We’re evaluating this support in the context of various storage services and connectivity mechanisms.
An error occurred while saving the commentHeather Lattanzio commented
Our blob storage accounts are private, not public and we use SAS tokens with expiration to give user access to individual files. We don't need a CDN and the CDN doesn't support expiration of SAS tokens. The only way that might work would be to setup the query string caching rules to never cache URLs with query strings, so that all request with a SAS token (a query string) would go back to the origin server to evaluate the sas token and the expiration. This completely negates any value of a CDN. If it would even work, it is extra overhead and extra cost and a huge workaround solely to be able to use a custom domain to access storage account blobs over https.