[fix] handle error on incoming request as well and properly abort proxy if client request is aborted

Author: jcrugzz

lib/http-proxy/passes/web-incoming.js

@@ -91,9 +91,7 @@ web_o = Object.keys(web_o).map(function(pass) {
 
   function stream(req, res, options, _, server, clb) {
 
-    //
     // And we begin!
-    //
     if (!clb) {
       server.emit('start', req, res, options.target)
     }
@@ -111,14 +109,24 @@ web_o = Object.keys(web_o).map(function(pass) {
       common.setupOutgoing(options.ssl || {}, options, req)
     );
 
+    // Ensure we abort proxy if request is aborted
+    req.on('aborted', function () {
+      proxyReq.abort();
+    });
+
+    // Handle errors on incoming request as well as it makes sense to
+    req.on('error', proxyError);
+
     // Error Handler
-    proxyReq.on('error', function(err){
+    proxyReq.on('error', proxyError);
+
+    function proxyError (err){
       if (clb) {
         clb(err, req, res);
       } else {
         server.emit('error', err, req, res);
       }
-    });
+    }
 
     (options.buffer || req).pipe(proxyReq);
 
@@ -128,9 +136,7 @@ web_o = Object.keys(web_o).map(function(pass) {
        if(web_o[i](req, res, proxyRes)) { break; }
       }
 
-      //
       // Allow us to listen when the proxy has completed
-      //
       proxyRes.on('end', function () {
         if (!clb) {
           server.emit('end', req, res, proxyRes);