Proxied servers are not notified of aborted client requests

[Maiquu]

Environment

node: 22.17.1
httpxy: 0.1.7

Reproduction

1. Run following code where 2 servers are started. One acts as a proxy server for the other.

import { createServer } from "node:http";
import { setTimeout as delay } from 'node:timers/promises';
import { createProxyServer } from "httpxy";

const proxy = createProxyServer({});

const server = createServer(async (req, res) => {
  try {
    await proxy.web(req, res, {
      target: 'http://localhost:4000',
    });
  } catch (error) {
    console.error(error);
    res.statusCode = 500;
    res.end("Proxy error: " + error.toString());
  }
});

server.listen(3000, () => {
  console.log("Proxy is listening on http://localhost:3000");
});

const proxiedServer = createServer(async (req, res) => {
  req.on('close', () => {
    console.log('Request closed')
    if (req.aborted) {
      console.log('Request aborted by client')
    }
  })
  await delay(3000)

  res.writeHead(200, { 'Content-Type': 'text/plain' })
  res.end('Done')
})

proxiedServer.listen(4000, () => {
  console.log('Target is listening on http://localhost:4000')
})

2. Execute curl http://localhost:3000 and abort request before its over
3. Execute curl http://localhost:4000 and abort request before its over and observe differences

Describe the bug

When request is aborted by client, proxied server is not notified of this.

Additional context

I managed to fix this on my side via adding following to src/middleware/web-incoming.ts. Can open a PR.

@@ -114,6 +114,10 @@ const stream = defineProxyMiddleware(
       proxyReq.abort();
     });
 
+    res.on("close", function () {
+      proxyReq.abort();
+    })
+
     // handle errors in proxy and incoming request, just like for forward proxy
     const proxyError = createErrorHandler(proxyReq, options.target);
     req.on("error", proxyError);

Logs