diff --git a/auth.go b/auth.go
index 0a51295b..248f97d8 100644
--- a/auth.go
+++ b/auth.go
@@ -1,3 +1,7 @@
+// Copyright 2014 Manu Martinez-Almeida.  All rights reserved.
+// Use of this source code is governed by a MIT style
+// license that can be found in the LICENSE file.
+
 package gin
 
 import (
diff --git a/auth_test.go b/auth_test.go
index cc70bc08..d60c587b 100644
--- a/auth_test.go
+++ b/auth_test.go
@@ -1,3 +1,7 @@
+// Copyright 2014 Manu Martinez-Almeida.  All rights reserved.
+// Use of this source code is governed by a MIT style
+// license that can be found in the LICENSE file.
+
 package gin
 
 import (
diff --git a/binding/binding.go b/binding/binding.go
index 3670fd97..81ac3fa5 100644
--- a/binding/binding.go
+++ b/binding/binding.go
@@ -1,3 +1,7 @@
+// Copyright 2014 Manu Martinez-Almeida.  All rights reserved.
+// Use of this source code is governed by a MIT style
+// license that can be found in the LICENSE file.
+
 package binding
 
 import (
diff --git a/context.go b/context.go
index 8fed41de..294d1cce 100644
--- a/context.go
+++ b/context.go
@@ -1,3 +1,7 @@
+// Copyright 2014 Manu Martinez-Almeida.  All rights reserved.
+// Use of this source code is governed by a MIT style
+// license that can be found in the LICENSE file.
+
 package gin
 
 import (
diff --git a/context_test.go b/context_test.go
index 3b3302e8..6df824cb 100644
--- a/context_test.go
+++ b/context_test.go
@@ -1,3 +1,7 @@
+// Copyright 2014 Manu Martinez-Almeida.  All rights reserved.
+// Use of this source code is governed by a MIT style
+// license that can be found in the LICENSE file.
+
 package gin
 
 import (
diff --git a/deprecated.go b/deprecated.go
index 91d08239..eb248dde 100644
--- a/deprecated.go
+++ b/deprecated.go
@@ -1,3 +1,7 @@
+// Copyright 2014 Manu Martinez-Almeida.  All rights reserved.
+// Use of this source code is governed by a MIT style
+// license that can be found in the LICENSE file.
+
 package gin
 
 import (
diff --git a/gin.go b/gin.go
index 0f4753e2..45b3807a 100644
--- a/gin.go
+++ b/gin.go
@@ -1,3 +1,7 @@
+// Copyright 2014 Manu Martinez-Almeida.  All rights reserved.
+// Use of this source code is governed by a MIT style
+// license that can be found in the LICENSE file.
+
 package gin
 
 import (
diff --git a/gin_test.go b/gin_test.go
index 7425cc21..33979438 100644
--- a/gin_test.go
+++ b/gin_test.go
@@ -1,3 +1,7 @@
+// Copyright 2014 Manu Martinez-Almeida.  All rights reserved.
+// Use of this source code is governed by a MIT style
+// license that can be found in the LICENSE file.
+
 package gin
 
 import (
diff --git a/logger.go b/logger.go
index 8cbc24be..56602c04 100644
--- a/logger.go
+++ b/logger.go
@@ -1,3 +1,7 @@
+// Copyright 2014 Manu Martinez-Almeida.  All rights reserved.
+// Use of this source code is governed by a MIT style
+// license that can be found in the LICENSE file.
+
 package gin
 
 import (
diff --git a/mode.go b/mode.go
index 85f133b9..166c09c0 100644
--- a/mode.go
+++ b/mode.go
@@ -1,3 +1,7 @@
+// Copyright 2014 Manu Martinez-Almeida.  All rights reserved.
+// Use of this source code is governed by a MIT style
+// license that can be found in the LICENSE file.
+
 package gin
 
 import (
diff --git a/recovery.go b/recovery.go
index 47165227..a8d537e4 100644
--- a/recovery.go
+++ b/recovery.go
@@ -1,3 +1,7 @@
+// Copyright 2014 Manu Martinez-Almeida.  All rights reserved.
+// Use of this source code is governed by a MIT style
+// license that can be found in the LICENSE file.
+
 package gin
 
 import (
diff --git a/recovery_test.go b/recovery_test.go
index 9d3d0880..756c7c2a 100644
--- a/recovery_test.go
+++ b/recovery_test.go
@@ -1,3 +1,7 @@
+// Copyright 2014 Manu Martinez-Almeida.  All rights reserved.
+// Use of this source code is governed by a MIT style
+// license that can be found in the LICENSE file.
+
 package gin
 
 import (
diff --git a/render/render.go b/render/render.go
index bc982a30..699b4e96 100644
--- a/render/render.go
+++ b/render/render.go
@@ -1,3 +1,7 @@
+// Copyright 2014 Manu Martinez-Almeida.  All rights reserved.
+// Use of this source code is governed by a MIT style
+// license that can be found in the LICENSE file.
+
 package render
 
 import (
diff --git a/response_writer.go b/response_writer.go
index 2da8e336..3ce84142 100644
--- a/response_writer.go
+++ b/response_writer.go
@@ -1,13 +1,24 @@
+// Copyright 2014 Manu Martinez-Almeida.  All rights reserved.
+// Use of this source code is governed by a MIT style
+// license that can be found in the LICENSE file.
+
 package gin
 
 import (
+	"bufio"
+	"errors"
 	"log"
+	"net"
 	"net/http"
 )
 
 type (
 	ResponseWriter interface {
 		http.ResponseWriter
+		http.Hijacker
+		http.Flusher
+		http.CloseNotifier
+
 		Status() int
 		Written() bool
 		WriteHeaderNow()
@@ -27,7 +38,7 @@ func (w *responseWriter) reset(writer http.ResponseWriter) {
 }
 
 func (w *responseWriter) WriteHeader(code int) {
-	if code != 0 {
+	if code > 0 {
 		w.status = code
 		if w.written {
 			log.Println("[GIN] WARNING. Headers were already written!")
@@ -54,3 +65,25 @@ func (w *responseWriter) Status() int {
 func (w *responseWriter) Written() bool {
 	return w.written
 }
+
+// Implements the http.Hijacker interface
+func (w *responseWriter) Hijack() (net.Conn, *bufio.ReadWriter, error) {
+	hijacker, ok := w.ResponseWriter.(http.Hijacker)
+	if !ok {
+		return nil, nil, errors.New("the ResponseWriter doesn't support the Hijacker interface")
+	}
+	return hijacker.Hijack()
+}
+
+// Implements the http.CloseNotify interface
+func (w *responseWriter) CloseNotify() <-chan bool {
+	return w.ResponseWriter.(http.CloseNotifier).CloseNotify()
+}
+
+// Implements the http.Flush interface
+func (w *responseWriter) Flush() {
+	flusher, ok := w.ResponseWriter.(http.Flusher)
+	if ok {
+		flusher.Flush()
+	}
+}
diff --git a/utils.go b/utils.go
index 6417efd9..f58097a4 100644
--- a/utils.go
+++ b/utils.go
@@ -1,3 +1,7 @@
+// Copyright 2014 Manu Martinez-Almeida.  All rights reserved.
+// Use of this source code is governed by a MIT style
+// license that can be found in the LICENSE file.
+
 package gin
 
 import (