When delivering thousands of secured files to the same client, having to send thousands of secure token gets cumbersome and slow. Being able to make one token with a wildcard in, than can be used for all these requests, would be very powerful.
CDNs I know have this:
- Amazon Cloudfront
- Fastly allows something similar by using a custom VCL
MaxCDN has it on their roadmap.
While we’re at it, it would be wonderful if the secure tokens were also at least HMAC-SHA1 instead of the broken md5