diff --git a/netwerk/base/public/nsIUploadChannel2.idl b/netwerk/base/public/nsIUploadChannel2.idl
index 33af467711af..3fae81c36e55 100644
--- a/netwerk/base/public/nsIUploadChannel2.idl
+++ b/netwerk/base/public/nsIUploadChannel2.idl
@@ -39,7 +39,7 @@
 
 interface nsIInputStream;
 
-[scriptable, uuid(8821E259-7252-4464-B874-A55D8EF6B222)]
+[scriptable, uuid(AD9D3F1C-A8DE-4d0b-9714-1B922297AD65)]
 interface nsIUploadChannel2 : nsISupports
 {
     /**
@@ -70,4 +70,9 @@ interface nsIUploadChannel2 : nsISupports
                                  in long long aContentLength,
                                  in ACString aMethod,
                                  in boolean aStreamHasHeaders);
+
+    /**
+     *
+     */
+    readonly attribute boolean uploadStreamHasHeaders;
 };
diff --git a/netwerk/protocol/http/HttpBaseChannel.cpp b/netwerk/protocol/http/HttpBaseChannel.cpp
index d6802e5fc059..aaefffd082c1 100644
--- a/netwerk/protocol/http/HttpBaseChannel.cpp
+++ b/netwerk/protocol/http/HttpBaseChannel.cpp
@@ -498,6 +498,15 @@ HttpBaseChannel::ExplicitSetUploadStream(nsIInputStream *aStream,
   return NS_OK;
 }
 
+NS_IMETHODIMP
+HttpBaseChannel::GetUploadStreamHasHeaders(PRBool *hasHeaders)
+{
+  NS_ENSURE_ARG(hasHeaders);
+
+  *hasHeaders = mUploadStreamHasHeaders;
+  return NS_OK;
+}
+
 //-----------------------------------------------------------------------------
 // HttpBaseChannel::nsIEncodedChannel
 //-----------------------------------------------------------------------------