Mosaic over QUIC
Mosaic benefits from TLS, but does not benefit from much else that HTTP or WebSockets provide other than framing. But framing is quite easy.
QUIC brings a lot of performance and usability benefits such as avoiding head-of-line blocking, fewer roundtrips by design, optional out-of-order delivery, and multiplexing.
Framing
We cannot use QUIC datagrams due to unreliability and size limitations. So we open a single bidirectional stream for Mosaic and manage our own framing.
Framing is simple:
- Eight byte length of mosaic message
- The mosaic message itself
Some mosaic messages are already framed, but we do this outer framing because they are not all uniformly framed.