Load feature is available for Azure CDN
Last November, we announced Purge which allows you to refresh content from CDN. Today, we are pleased to inform you that Load is now available for CDN customers.
Load allows you to pre-cache files across all CDN POPs. It is most effective when you need to make a file simultaneously available to a large set of worldwide users (ex. firmware update or marketing campaign). When your customers start requesting files, CDN can immediately start delivering the files without needing to retrieve them from your origin. You just need to specify the relative path to the origin associated with your endpoint.
Source: Microsoft Azure News