I have a problem with hosting my Unity3d web application on GAE. When the application loads and the web player starts to request the ".unity3d" file, i use the following python script to make the HTTP response:

class UnityHandler(webapp.RequestHandler):
  def get (self, q):
    if q is None:
      q = 'WebPlayer.unity3d'

path = os.path.join (os.path.dirname (__file__), q)
self.response.headers ['Content-Type'] = 'text/html'
self.response.out.write (template.render (path, {}))

def main ():
  application = webapp.WSGIApplication (
    [('/(.*html)?', MainHandler), 
    ('/(.*unity3d)?', UnityHandler)
    ], debug=True)
 util.run_wsgi_app (application)

It doesn't work quite well, it finds the file but the Unity web player give me a "bad file length" error.

So can anyone tell me where the problem is ? I think it has something to do with setting the "Content-type", but i don know how to fix it ?

Thanks,

Samer Samy