Not catching client disconnect from browsers (Chromium) and time out.

[hironichu]

Hello there,

I have been trying out this library around and i found a quite annoying bug, it does seem to be an issue here or in Quinn (I couldn't try).

When using the default example server, with valid certificate, and running locally, any time i want to gracefully close the connection from the client, the server does not seem to either catch it or know the client disconnected.

What is happening :

Client code :

            const test = new WebTransport("https://xxx.xxx.xxx");
            test.ready.then(() => {
                console.log("WebTransport connection established!");
                test.closed.then(() => {
                    console.log("WebTransport connection closed!");
                });
                test.close({
                    reason: "test",
                    closeCode: 17
                });
            }).catch((error) => {
                console.error("Failed to establish WebTransport connection:", error);
            });

Server code : <the example server-advanced with valid TLS certificate for a domain that is pointing to 127.0.0.1>

Here the client know we sent a close event, but the server is still waiting for data, and will timeout after some time

Here is what should happen using another Webtransport client library

To finish , i've tried the other library and no issue there (same configuration)

Ref: issue oppened in Deno's main repo.
denoland/deno#28406

[guest271314]

Can't reproduce on Debian 12 using Chromium Version 142.0.7401.0 (Developer Build) (64-bit) from today. The only difference I can see is use of serverCertificateHashes

var CERT_DIGEST = new Uint8Array([0,1,2,3...]);

var test = new WebTransport("https://127.0.0.1:4443", {
  serverCertificateHashes: [{
    "algorithm": "sha-256",
    "value": CERT_DIGEST,
  }, ]
});
test.ready.then(() => {
  console.log("WebTransport connection established!");
  test.closed.then(() => {
    console.log("WebTransport connection closed!");
  });
  test.close({
    reason: "test",
    closeCode: 17
  });
  test.closed.then(console.log).catch(console.warn);
}).catch((error) => {
  console.error("Failed to establish WebTransport connection:", error);
});

[hironichu]

I will try that again on the test folder i had to make sure this was not just the version of the lib i was using

[kixelated]

I will try that again on the test folder i had to make sure this was not just the version of the lib i was using

This was fixed somewhat recently: 34d9f3a