尝试实现一个ajax登录/注册过程(不具有身份验证的刷新站点)。使用cookies来保存状态。我以为我现在有这个权利，但是由于某种原因，浏览器在从服务器恢复之后不设置cookie。任何人可以帮助？以下是请求和响应标头：
Request URL:http://api.site.dev/v1/login Request Method:POST Status Code:200 OK
请求标头
Accept:application/json,text/plain,*/*
Accept-Charset:ISO-8859-1,utf-8;q=0.7,*;q=0.3
Accept-Encoding:gzip,deflate,sdch
Accept-Language:en-US,en;q=0.8
Connection:keep-alive
Content-Length:57
Content-Type:application/json;charset=UTF-8
Host:api.site.dev
Origin:http://site.dev
Referer:http://site.dev/
User-Agent:Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_2) AppleWebKit/537.11 (KHTML,like Gecko) Chrome/23.0.1271.101 Safari/537.11
withCredentials:true
X-Requested-With:XMLHttpRequest
Request Payload
{"email":"calvinfroedge@gmail.com","password":"foobar"}
回应标题
Access-Control-Allow-Credentials:true Access-Control-Allow-Headers:X-Requested-With,Content-Type,withCredentials Access-Control-Allow-Methods:GET,POST,PUT,DELETE,OPTIONS Access-Control-Allow-Origin:http://site.dev Connection:Keep-Alive Content-Length:19 Content-Type:application/json Date:Tue,08 Jan 2013 18:23:14 GMT Keep-Alive:timeout=5,max=99 Server:Apache/2.2.22 (Unix) DAV/2 PHP/5.4.7 mod_ssl/2.2.22 OpenSSL/0.9.8r Set-Cookie:site=%2B1THQQ%2BbZkEwTYFvXFVV5fxi00l2K%2B6fvt9SuHACTNsEwUGzDSUckt38ZeDsNbZSsqzHmPMWRLc84eDLZzh8%2Fw%3D%3D; expires=Thu,10-Jan-2013 18:23:14 GMT; path=/; domain=.site.dev; httponly X-Powered-By:PHP/5.4.7
我也从Chrome服务器返回的Chrome网络工具中看到cookie：
回应曲奇
Name: site Value: %2B1THQQ%2BbZkEwTYFvXFVV5fxi00l2K%2B6fvt9SuHACTNsEwUGzDSUckt38ZeDsNbZSsqzHmPMWRLc84eDLZzh8%2Fw%3D%3D Domain: .site.dev Path: / Expires: Session Size: 196 Http: ✓
您的AJAX请求必须使用“withCredentials”设置设置为true(仅在XmlHttpRequest2和fetch中可用)：
var req = new XMLHttpRequest();
req.open('GET','https://api.bobank.com/accounts',true); // force XMLHttpRequest2
req.setRequestHeader('Content-Type','application/json; charset=utf-8');
req.setRequestHeader('Accept','application/json');
req.withCredentials = true; // pass along cookies
req.onload = function() {
// store token and redirect
let json;
try {
json = JSON.parse(req.responseText);
} catch (error) {
return reject(error);
}
resolve(json);
};
req.onerror = reject;
如果您想要对CORS，API安全性和Cookie的详细说明，答案不适用于StackOverflow注释。看看这篇文章我写的主题：http://www.redotheweb.com/2015/11/09/api-security.html
