TL;DR
WebTransport is a sleek new protocol layer that brings real-time, bidirectional streams to the web by piggybacking on HTTP/2 and HTTP/3. It lets you multiplex reliable and unreliable channels over a single TLS-secured connection, making everything from live gaming to video chats smoother and more flexible than old-school WebSockets or gRPC hacks.
Beyond just speed and reliability, WebTransport remixes features like client-initiated streams, backfill, extended CONNECT, and proxy support—so you get low-latency updates, smarter push notifications, and easier server-to-client comms without the usual workarounds.
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