fix aborting Streams #3754
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fix aborting Streams #3754
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KhafraDev
requested changes
Oct 21, 2024
|
I need a test case that doesn't use a third party endpoint to work on it. The case you provided doesn't abort in node or Deno, and I cannot test in browsers because of CSP. The correct fix, afaict, is to remove the previous listener if > 1 exists (such that 1 listener always exists) or to only add a listener if there are none. |
import * as http from "http"
const abortStream = async () => {
const abortController = new AbortController
const readStream = (await fetch("http://localhost", { signal: abortController.signal })).arrayBuffer()
abortController.abort()
console.log(await readStream)
}
http.createServer((request, response) => {
if (request.url?.[1]) {
response.setHeader("content-type", "text/html")
response.end(`<!doctypehtml>
<html>
<body>
<script>
(${abortStream})()
</script>
</body>
</html>
`)
} else {
response.end(new Uint8Array(20000))
}
}).listen(80, abortStream) |
KhafraDev
approved these changes
Oct 29, 2024
|
Thank you! |
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This relates to...
#1711
Rationale
The simple fix to the memory issue caused a worse issue. Common patterns that involve catching AbortErrors, such as retrying slow requests, silently fail if the signal unluckily happens to be aborted during the read. A proper fix to the memory issue will likely be more involved.
Changes
revert 49e33a8
Bug Fixes
Aborting a Stream doesn't throw.
Status