QuicTransport is an API that allows Web applications to connect directly to remote servers using QUIC. It is a part of the WebTransport framework; Http3Transport and FallbackTransport are not covered by this enhancement.
Currently, Web application developers have two APIs for bidirectional communications with a remote server: WebSockets and RTCDataChannel. WebSockets are TCP-based, thus having all of the drawbacks of TCP that make it a poor fit for latency sensitive applications (head of line blocking, lack of support for unreliable data transport). RTCDataChannel is based on SCTP, which does not have these drawbacks; however, it is designed to be used in a peer-to-peer context, which caused its use in client-server settings to be fairly low. QuicTransport provides a client-server API that supports bidirectional transfer of both unreliable and reliable data, using UDP-like datagrams and cancellable streams.
Status in Chromium
Origin trial (tracking bug) in:
- Chrome for desktop release 84
- Chrome for Android release 84
- Android WebView release 84
Consensus & Standardization
- No signal
- No signal
Last updated on 2020-09-11