Unmark favorite media

[Moinax]

Hi,

I'm trying to unmark a media from favorite through php OAuth, but I always get the same error message

exception 'OAuthException' with message 'Invalid auth/bad request (got a 401, expected HTTP/1.1 20X or a redirect)

I'm using this code with the right tokens (as it is working to "Mark favorite media") :

        $this->fetch(

            'http://gomiso.com/api/oauth/v1/media/favorites.json',

            array(

                 'media_id' => $media_id,

            ),

            OAUTH_HTTP_METHOD_DELETE

        );

Does anyone have been able to unmark a media from favorite ? 

Does someone can help me on this ?