| import importlib | 
 | error_checker = importlib.import_module("fedcm.support.request-params-check") | 
 |  | 
 | def main(request, response): | 
 |   request_error = error_checker.tokenCheck(request) | 
 |   if (request_error): | 
 |     return request_error | 
 |  | 
 |   response.headers.set(b"Content-Type", b"application/json") | 
 |   response.headers.set(b"Access-Control-Allow-Origin", request.headers.get(b"Origin")) | 
 |   response.headers.set(b"Access-Control-Allow-Credentials", "true") | 
 |  | 
 |   rp_mode = request.POST.get(b"mode") | 
 |   return "{\"token\": \"mode=" + rp_mode.decode("utf-8") + "\"}" |