docs: def renderHTTP(self, context):
          """
          Check to see if the wrapped resource wants to be rendered over HTTPS
          and generate a redirect if this is so, if HTTPS is available, and if
          the request is not already over HTTPS.
          """
          if getattr(self.wrappedResource, 'needsSecure', False):
              request = IRequest(context)
              url = self.urlGenerator.encryptedRoot()
              if url is not None:
                  for seg in request.prepath:
                      url = url.child(seg)
                  return url
          return self.wrappedResource.renderHTTP(context)