跨域：通过js或python在不同的域之间进行数据传输或通信，比如用ajax向一个不同的域请求数据，或者通过js获取页面中不同域的框架中(Django)的数据。只要协议、域名、端口有任何一个不同，都被当作是不同的域。
1，安装依赖包
pip install django-cors-headers
2，修改setting.py中配置
INSTALLED_APPS = [ ‘django.contrib.admin‘, ‘django.contrib.auth‘, ‘django.contrib.contenttypes‘, ‘django.contrib.sessions‘, ‘django.contrib.messages‘, ‘django.contrib.staticfiles‘, ‘myapp‘, ‘mymac‘, ‘corsheaders‘, ]
MIDDLEWARE = [ ‘django.middleware.security.SecurityMiddleware‘, ‘django.contrib.sessions.middleware.SessionMiddleware‘, #定义跨域中间件 ‘corsheaders.middleware.CorsMiddleware‘, ‘django.middleware.common.CommonMiddleware‘, # ‘django.middleware.csrf.CsrfViewMiddleware‘, ‘django.contrib.auth.middleware.AuthenticationMiddleware‘, ‘django.contrib.messages.middleware.MessageMiddleware‘, ‘django.middleware.clickjacking.XFrameOptionsMiddleware‘, ]
#配置可跨域范围 CORS_ALLOW_CREDENTIALS = True CORS_ORIGIN_ALLOW_ALL = True
原文：https://www.cnblogs.com/xcsg/p/10536308.html