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Fix 'aborted' detection on Node v15.5.0+ #1559

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Fix 'aborted' detection on Node v15.5.0+ #1559

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20 changes: 17 additions & 3 deletions lib/http-proxy/passes/web-incoming.js
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Expand Up @@ -18,6 +18,11 @@ var nativeAgents = { http: httpNative, https: httpsNative };
* flexible.
*/

// 'aborted' event stopped working reliably on v15.5.0 and was later removed entirely
var supportsAbortedEvent = (function () {
var ver = process.versions.node.split('.').map(Number);
return ver[0] <= 14 || ver[0] === 15 && ver[1] <= 4;
}());

module.exports = {

Expand Down Expand Up @@ -143,9 +148,18 @@ module.exports = {
}

// Ensure we abort proxy if request is aborted
req.on('aborted', function () {
proxyReq.abort();
});
if (supportsAbortedEvent) {
req.on('aborted', function () {
proxyReq.abort();
});
} else {
res.on('close', function () {
var aborted = !res.writableFinished;
if (aborted) {
proxyReq.abort();
}
});
}

// handle errors in proxy and incoming request, just like for forward proxy
var proxyError = createErrorHandler(proxyReq, options.target);
Expand Down