An API that allows web applications to join a multicast (S,G) and receive authenticated, congestion-safe multicast IP traffic from services that offer it.
It provides:
- per-packet authentication
- an origin-based security model
- protection against over-subscription
This lets browsers join in subscribing to popular live media events or file downloads (software or pre-recorded media) that make use of multicast IP to enable the efficient use of network and server resources.
See the explainer for more info.