After logging in via $.ajax()
to a site, I am trying to send a second $.ajax()
request to that site - but when I check the headers sent using FireBug, there is no session cookie being included in the request.
What am I doing wrong?
I am operating in cross-domain scenario. During login remote server is returning Set-Cookie header along with Access-Control-Allow-Credentials
set to true.
The next ajax call to remote server should use this cookie.
CORS's Access-Control-Allow-Credentials
is there to allow cross-domain logging. Check https://developer.mozilla.org/En/HTTP_access_control for examples.
For me it seems like a bug in JQuery (or at least feature-to-be in next version).
UPDATE:
Cookies are not set automatically from AJAX response (citation: http://aleembawany.com/2006/11/14/anatomy-of-a-well-designed-ajax-login-experience/)
Why?
You cannot get value of the cookie from response to set it manually (http://www.w3.org/TR/XMLHttpRequest/#dom-xmlhttprequest-getresponseheader)
I'm confused..
There should exist a way to ask jquery.ajax()
to set XMLHttpRequest.withCredentials = "true"
parameter.
ANSWER:
You should use xhrFields
param of http://api.jquery.com/jQuery.ajax/
The example in the documentation is:
$.ajax({
url: a_cross_domain_url,
xhrFields: {
withCredentials: true
}
});
It's important as well that server answers correctly to this request. Copying here great comments from @Frédéric and @Pebbl:
Important note: when responding to a credentialed request, server must specify a domain, and cannot use wild carding. The above example would fail if the header was wildcarded as: Access-Control-Allow-Origin: *
So when the request is:
Origin: http://foo.example
Cookie: pageAccess=2
Server should respond with:
Access-Control-Allow-Origin: http://foo.example
Access-Control-Allow-Credentials: true
[payload]
Otherwise payload won't be returned to script. See: https://developer.mozilla.org/en-US/docs/Web/HTTP/Access_control_CORS#Requests_with_credentials