from django.utils.deprecation import MiddlewareMixin

class CorsMiddleware(MiddlewareMixin):

    def process_response(self,request,response):

        # 复杂跨域

        response["Access-Control-Allow-Headers"] = "*"

        # 简单跨域

        response["Access-Control-Allow-Origin"] = "*"

        # put请求 需要的跨域

        response["Access-Control-Allow-Methods"] = "*"

        return response