兩種方法：

• 拼資料

def myview(_request):
  response = HttpResponse(json.dumps({"key": "value", "key2": "value"}))
  response["Access-Control-Allow-Origin"] = "*"
  response["Access-Control-Allow-Methods"] = "POST, GET, OPTIONS"
  response["Access-Control-Max-Age"] = "1000"
  response["Access-Control-Allow-Headers"
 
] = "*"
  return response

• 用別人寫好的外掛

##安裝django-cors-headers：
pip install django-cors-headers

##在settings.py中增加：

INSTALLED_APPS = (
  ...
  'corsheaders',
  ...
)

...

MIDDLEWARE_CLASSES = (
  ...
  'corsheaders.middleware.CorsMiddleware',
  'django.middleware.common.CommonMiddleware',
  ...
)