Steps to reproduce the problem

1. Create a WebSocketStream (https://github.com/whatwg/websockets/pull/48, https://developer.mozilla.org/en-US/docs/Web/API/WebSocketStream/WebSocketStream) instance with signal set with signal (AbortController.signal) passed as option
2. Call abortControllerInstance.abort("reason")
3. Observer the abort() function in a WritableStream connected to readable side of WebSocketStream is not executed; no close frame is sent to the server; the WebSocketStream instance closed Promise is not fulfilled

Problem Description

This does not work

var abortable = new AbortController(); var { signal, } = abortable; var wss = new WebSocketStream("wss://0.0.0.0:8000", {signal}); var { readable, writable, } = await wss.opened.catch(console.error); readable.pipeTo(...); abortable.abort("reason");

This does work

readable.pipeTo(..., {signal}); abortable.abort("reason"); // Or // await writer.close(); // await writer.abort();

Summary

AbortController.abort() does not send close frame to WebSocketStream(url, {signal})

Custom Questions

Which component does this fall under?

Blink>Network

Does this work in other browsers?

Yes - This is just a Chrome problem

Additional Data

Category: API
Chrome Channel: Not sure
Regression: N/A