Fixes memory leak when clients abort connections

Author: c4milo

lib/node-http-proxy/http-proxy.js

@@ -326,6 +326,13 @@ HttpProxy.prototype.proxyRequest = function (req, res, buffer) {
     }
   });
 
+  //Aborts reverseProxy if client aborts the connection.
+  req.on('close', function () {
+    if (!errState) {
+      reverseProxy.abort();
+    }
+  });
+
   //
   // If we have been passed buffered data, resume it.
   //