Allow event observers to access upstream response headers and data.

Author: colinmollenhour

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

@@ -297,7 +297,7 @@ HttpProxy.prototype.proxyRequest = function (req, res, buffer) {
         catch (ex) { console.error("res.end error: %s", ex.message) }
 
         // Emit the `end` event now that we have completed proxying
-        self.emit('end', req, res);
+        self.emit('end', req, res, response);
       }
     });
 
@@ -318,6 +318,7 @@ HttpProxy.prototype.proxyRequest = function (req, res, buffer) {
           response.pause();
         }
       }
+      self.emit('data', chunk, req);
     }
 
     response.on('data', ondata);