gistfile1.diff

diff --git a/lib/http.js b/lib/http.js
index 1cf9eca..e9d7c6a 100644
--- a/lib/http.js
+++ b/lib/http.js
@@ -863,11 +863,18 @@ function Client ( ) {
       self.destroy(ret);
     } else if (parser.incoming && parser.incoming.upgrade) {
       var bytesParsed = ret;
-      var upgradeHead = d.slice(start + bytesParsed, end - start);
-      parser.incoming.upgradeHead = upgradeHead;
-      var req = self._outgoing[0];
       self.ondata = null;
       self.onend = null
+
+      var req = self._outgoing[0];
+
+      var upgradeHead = d.slice(start + bytesParsed + 1, end - start);
+
+      if (self.listeners('upgrade').length) {
+        self.emit('upgrade', req, self, upgradeHead);
+      } else {
+        self.destroy();
+      }
     }
   };