Axios受到使用Django REST Framework的CORS策略的阻止
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我正在尝试使用Axios向我的API(Django REST Framework)发出请求,但是我收到以下错误:
Access to XMLHttpRequest at 'http://trvl.hopto.org:8000/api/airports/MSP/routes' from origin 'http://localhost:3000' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
即使您使用cUrl检查:
curl -I -X GET -H "Origin: http://localhost:3000" -H 'Access-Control-Request-Method: GET' http://trvl.hopto.org:8000/api/airports/MSP/routes 2>&1 | grep 'Access-Control-Allow-Origin'
Response: Access-Control-Allow-Origin: *
Full response from cUrl Options:
OPTIONS request: curl -I -X OPTIONS -H "Origin: http://localhost:3000" -H 'Access-Control-Request-Method: GET' http://trvl.hopto.org:8000/api/airports/MSP/routes
HTTP/1.1 200 OK
Date: Wed, 27 Mar 2019 10:58:01 GMT
Server: WSGIServer/0.2 CPython/3.6.8
Content-Type: text/html; charset=utf-8
Content-Length: 0
Vary: Origin
Access-Control-Allow-Origin: *
Access-Control-Allow-Headers: accept, accept-encoding, authorization, content-type, dnt, origin, user-agent, x-csrftoken, x-requested-with
Access-Control-Allow-Methods: DELETE, GET, OPTIONS, PATCH, POST, PUT
Access-Control-Max-Age: 86400
使用Axios时:
let url = 'http://A.hopto.org:8000/api/airports/MSP/routes';
axios.get(url)
.catch((err) => {
console.error(err);
})
.then((response, ) => {
console.log(response);
});
Response:
Access to XMLHttpRequest at 'http://API.hopto.org:8000/api/airports/MSP/routes' from origin 'http://localhost:3000' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
问题是API启用了CORS但我无法在我的WebApp中使用Axios和React。
更新:
Here is my Django settings.py I'm using the https://github.com/ottoyiu/django-cors-headers module.
**settings.py**
# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = True
ALLOWED_HOSTS = ['*']
# Application definition
INSTALLED_APPS = [
'corsheaders',
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'trvl',
'rest_framework',
'coreapi',
'django_filters',
]
MIDDLEWARE = [
'django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'corsheaders.middleware.CorsMiddleware',
'django.middleware.common.CommonMiddleware',
#'corsheaders.middleware.CorsPostCsrfMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware'
]
CORS_ORIGIN_ALLOW_ALL = True
答案
在你的后端代码上你需要添加添加http://localhost:3000
作为字段Access-Control-Allow-Origin
的响应头的一部分
还要确保你的回复有这个字段Access-Control-Allow-Methods
包括GET
您提到您的后端API代码已启用CORS。如果上述方法无效,您是否可以更新帖子以包含如何设置?
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