WebTransport Sender

Connect to a WebTransport server, then send the text as a datagram. The counter uses UTF-8 byte length and warns when you exceed the negotiated datagram size.

Host / IP

Port

Server certificate fingerprint (optional)

If provided, we pass it as serverCertificateHashes (SHA-256).

Datagrams

maxDatagramSize=unknown

Budget uses transport.datagrams.maxDatagramSize (fallback 1200).

RTT: — Disconnected Auto-reconnect

Message

Datagram settings

incomingMaxAge (ms)

outgoingMaxAge (ms)

incomingHighWaterMark (chunks)

outgoingHighWaterMark (chunks)

These map to transport.datagrams.* properties when supported.

Streams & activity

datagrams: — bidi: 0 in / 0 out uni: 0 in / 0 out

last ping: — last datagram: — last bidi: — last uni: —

Connect uses WebTransport over HTTP/3. Ping and Send use datagrams; Open bidi/uni use stream APIs. Activity shows when each path was last used.