code: def security_warnings(request, PROXY_ALLOWED_HOSTS=()):
      
  
      warnings = []
  
      PROXY_ALLOWED_HOSTS = PROXY_ALLOWED_HOSTS or getattr(settings, 'PROXY_ALLOWED_HOSTS', ())
  
      if PROXY_ALLOWED_HOSTS and '*' in PROXY_ALLOWED_HOSTS:
          warnings.append(dict(title=_('Insecure setting detected.'),
                               description=_('A wildcard is included in the PROXY_ALLOWED_HOSTS setting.')))
  
      return dict(warnings=warnings)
docs: Detects insecure settings and reports them to the client-side context.