Angularjs $ http似乎不理解响应中的“Set-Cookie”

Question

I have a nodejs express REST api with Passport module for authentication. A login method (GET) returns a cookie in the header. When I call it from Chrome it works fine, my cookie is set in my browser.

But if I call it through $http from Angularjs, the cookie is not set.

Set-Cookie:connect.sid=s%3Ad7cZf3DSnz-IbLA_eNjQr-YR.R%2FytSJyd9cEhX%2BTBkmAQ6WFcEHAuPJjdXk3oq3YyFfI; Path=/; HttpOnly

As you can see above, the Set-Cookie is present in the header of the http service response.

Perhaps HttpOnly may be the source of this problem? If yes, how can I change it? Here is my express configuration :

app.configure(function () {
    app.use(allowCrossDomain);
    app.use(express.bodyParser());
    app.use(express.cookieParser())
    app.use(express.session({ secret: 'this is a secret' }));
    app.use(flash());
    //passport init
    app.use(passport.initialize());
    app.use(passport.session());
    app.set('port', process.env.PORT || 8080);
});

Thank you for your help

Answer 1

Make sure to configure your $http request to use credentials. From the XHR documentation:

https://developer.mozilla.org/en-US/docs/HTTP/Access_control_CORS

The most interesting capability exposed by both XMLHttpRequest and Access Control is the ability to make "credentialed" requests that are cognizant of HTTP Cookies and HTTP Authentication information. By default, in cross-site XMLHttpRequest invocations, browsers will not send credentials. A specific flag has to be set on the XMLHttpRequest object when it is invoked.

You can use the options object to set the use of credentials, see

http://docs.angularjs.org/api/ng.$http

Example:

$http({withCredentials: true, ...}).get(...)

Answer 2

How are you checking for the existence of the cookie?

$http is just a wrapper around the browser's XHR, just like jQuery's $.ajax and friends. That means your browser will handle the cookies normally.

My guess is that the cookie is being set, but you're trying to read it through document.cookie . HttpOnly prevents script from having access to the cookie. This is a good thing.

HttpOnly helps mitigate against XSS attacks. It makes it impossible for malicious script to steal a user's session token (and thus their login). Do not turn off HttpOnly .

You should not need the cookie anyway. Since $http is just a wrapper around XHR, the browser will automatically send the cookie the next time you make a request. You can verify this by watching the requests in the Developer Tools' Network panel.

Answer 3

I solved the problem by setting {withCredential : true} in the angular $http request and by setting :

res.header("Access-Control-Allow-Credentials", true);

in my express server configuration. By doing this, my cookie appears well in my browser cookies list.

Answer 4

Below solution worked for me

In Angular , I have used following code snippet using withCredentials: true for my request.

this._http.post(this._apiUrl + 'api/' + url, data, { withCredentials: true })
            .subscribe(data => { resolve(data) }, error => { this.showServerError(error)})

In Node, before I got the solution, I was just initializing CORS using

app.use(cors());

But, now I have implemented the following code snippet

app.use(cors({origin: [
   "http://localhost:5000"
 ], credentials: true}))

Where http://localhost:5000 is my Angular application endpoint. You can set this URL dynamically from config or .env file.

Hope that above solution will work for your problem.

Answer 5

You can change it by configuring express.session :

app.use(express.session({
  secret : 'this is a secret',
  cookie : {
    httpOnly : false,
    maxAge   : XXX // see text
  }
});

But I don't think Angular cares much about cookies, those are handled by the browser (and I agree with @josh3736 that you should keep httpOnly to true ).

It might have something to do with your cookies being (browser-)session cookies. You can try and see if it works better by explicitly setting a maxAge for the cookie (in milliseconds).