您好,我需要从 Backbone 向 API 发出 json 请求(我可以控制服务器端)。尽管响应标头看起来不错,但我一直在获取 Access-Control-Allow-Origin。
以下是 Nginx 设置:
location / {
if ($request_method = 'OPTIONS') {
add_header 'Access-Control-Allow-Origin' '*';
add_header 'Access-Control-Allow-Credentials' 'true';
add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
add_header 'Access-Control-Allow-Headers' 'DNT,X-Mx-ReqToken,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type';
add_header 'Access-Control-Max-Age' 1728000;
add_header 'Content-Type' 'text/plain charset=UTF-8';
add_header 'Content-Length' 0;
return 204;
}
if ($request_method = 'POST') {
add_header 'Access-Control-Allow-Origin' '*';
add_header 'Access-Control-Allow-Credentials' 'true';
add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
add_header 'Access-Control-Allow-Headers' 'DNT,X-Mx-ReqToken,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type';
}
if ($request_method = 'GET') {
add_header 'Access-Control-Allow-Origin' '*';
add_header 'Access-Control-Allow-Credentials' 'true';
add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
add_header 'Access-Control-Allow-Headers' 'DNT,X-Mx-ReqToken,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type';
}
passenger_enabled on;
}
这是来自控制台的请求/响应标头:
Request headers
DNT: 1
X-Requested-With: XMLHttpRequest
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_5) AppleWebKit/534.57.7 (KHTML, like Gecko) Version/5.1.7 Safari/534.57.7
Accept: */*;q=0.5, text/javascript, application/javascript, application/ecmascript, application/x-ecmascript
Referer: http://<address>/
Response Headers
Access-Control-Request-Method: *
X-Powered-By: Phusion Passenger (mod_rails/mod_rack) 3.0.14
Transfer-Encoding: Identity
Status: 200
Connection: keep-alive
X-Request-Id: 2917f130c8699182ee9cdc047c1926fe
X-UA-Compatible: IE=Edge,chrome=1
X-Runtime: 0.455212
Server: nginx/1.2.2 + Phusion Passenger 3.0.14 (mod_rails/mod_rack)
Etag: "346cee46bab7061e866fa064df95c845"
Content-Type: text/html; charset=utf-8
Access-Control-Allow-Origin: *
Cache-Control: max-age=0, private, must-revalidate
Set-Cookie: _y_app_session=BAh7CEkiD3Nlc3Npb25faWQGOgZFRkkiJWE2Zjg3YWQ0NDFjZWNiM2VmNTg2ZDhiYmIyOGFlYmIwBjsAVEkiEF9jc3JmX3Rva2VuBjsARkkiMUxBSzFKTDJQWG1sa2dhbXRLM2ptQmxjenRkZEdJeVh1MDFhaUVuaXE1dFE9BjsARkkiCmZsYXNoBjsARm86JUFjdGlvbkRpc3BhdGNoOjpGbGFzaDo6Rmxhc2hIYXNoCToKQHVzZWRvOghTZXQGOgpAaGFzaHsAOgxAY2xvc2VkRjoNQGZsYXNoZXN7CDoLbm90aWNlMDoLZXJyb3JzMDoKZXJyb3IwOglAbm93MA%3D%3D--648ffcb1b2869f1da57773459307ca1ac5fb8bfb; path=/; HttpOnly
Access-Control-Allow-Headers: *
* 更新 *
我目前正在使用http://github.com/yaoweibin/nginx_cross_origin_module它允许我从控制台发出请求。
我已经按照上面 repo 中的说明设置了 nginx。
cors on;
cors_max_age 3600;
cors_origin_list unbounded;
cors_method_list GET HEAD PUT POST;
cors_header_list unbounded;
server {
## Server stuff..
# passenger stuff
}
所以我可以这样做:
var xhr = new XMLHttpRequest()
xhr.open('GET', 'http://www.api.com/plots.json')
xhr.send();
当我使用具有“http://www.api.com/plots.json”作为 url 的模型通过 Backbone 获取时,我得到相同的来源错误。
** 更新 **
所以我切换到 more_set_headers 并且现在可以执行 .fetch() ... 仍然无法进行 POST 或执行 collection.create();
这是最新的 Nginx 设置:
server {
listen 80;
server_name api.app.com;
root /home/ubuntu/app/current/public;
passenger_enabled on;
location / {
if ($request_method = 'OPTIONS') {
more_set_headers 'Access-Control-Allow-Origin: *';
more_set_headers "Access-Control-Allow-Methods: OPTIONS, GET, PUT, DELETE, POST";
more_set_headers "Access-Control-Allow-Headers: x-requested-with";
more_set_headers "Access-Control-Max-Age: 1728000";
more_set_headers 'Content-Type: text/plain; charset=UTF-8';
more_set_headers 'application/json; charset=utf-8';
return 200;
}
if ($request_method = 'POST') {
more_set_headers "Access-Control-Allow-Origin: http://vidoai.com";
more_set_headers "Access-Control-Allow-Methods: GET, POST, OPTIONS";
more_set_headers 'Access-Control-Allow-Headers: DNT, X-Mx-ReqToken, Keep-Alive, User-Agent, X-Requested-With, If-Modified-Since, Cache-Control, Content-Type';
more_set_headers 'Content-Type: application/json, text/javascript, */*';
}
passenger_enabled on;
}
if ($request_method !~ ^(GET|HEAD|POST|PUT|DELETE)$ ) {
return 444; # block requests that Rails doesn't handle
}
}
我错过了什么??