Angular/Node/Express/Passport 跨域问题 - 启用 CORS Passport Facebook 身份验证

在 NodeJS/Express 中使用 Passport 尝试通过 Facebook 对用户进行身份验证时，已经有两天了，一百万次尝试启用 CORS.

It's been two days and a million tries to enable CORS when trying to authenticate a user with Facebook using Passport in NodeJS/Express.

我在 Chrome 上遇到的错误是:

The error I get on Chrome is this:

XMLHttpRequest cannot load https://www.facebook.com/dialog/oauth?response_type=code&redirect_uri=http%…%3A8080%2Fauth%2Ffacebook%2Fcallback&scope=email&client_id=598171076960591. 
No 'Access-Control-Allow-Origin' header is present on the requested resource. 
Origin 'http://localhost:8080' is therefore not allowed access. 

我使用的路线就是这么简单:

The routes I use are as simple as that:

// =====================================
// FACEBOOK ROUTES =====================
// =====================================
// route for facebook authentication and login

app.get('/auth/facebook', passport.authenticate('facebook', { scope : 'email' }));

// handle the callback after facebook has authenticated the user
app.get('/auth/facebook/callback',
    passport.authenticate('facebook', {
        successRedirect : '/home',
        failureRedirect : '/login'
    }));

这是在我的 angularJS 文件中调用路由的方式(我也试过设置 withCredentials : true):

This is how the route is called on my angularJS file (I've also tried setting withCredentials : true):

$http.get('/auth/facebook')
    .success(function(response) {

    }).error(function(response){

    });

我已经尝试了在 StackOverflow 和其他论坛上找到的十几种解决方案.

I've tried a dozen solutions that I found here on StackOverflow and other forums.

1. 我尝试在 routes.js 文件的路由之前添加此内容:

1. I tried adding this on the before my routes on the routes.js files:

app.all('*', function(req, res, next) {
  res.header('Access-Control-Allow-Origin', '*');
  res.header("Access-Control-Allow-Headers", "Content-Type,X-CSRF-Token, X-Requested-With, Accept, Accept-Version, Content-Length, Content-MD5,  Date, X-Api-Version, X-File-Name");
  res.header('Access-Control-Allow-Methods', 'GET,POST,PUT,HEAD,DELETE,OPTIONS');
  res.header('Access-Control-Allow-Credentials', true);

  if ('OPTIONS' == req.method) {
      res.send(200);
  } else {
      next();
  }
});

app.use(function(req, res, next) {
  res.setHeader('Access-Control-Allow-Origin', '*');
  res.setHeader('Access-Control-Allow-Headers', 'Content-Type,X-Requested-With');
  res.setHeader('Access-Control-Allow-Methods', 'GET,POST,PUT,HEAD,DELETE,OPTIONS');
  res.setHeader('Access-Control-Allow-Credentials', true);

  if ('OPTIONS' == req.method) {
    res.send(200);
  } else {
    next();
  }

 });

 require('./app/routes.js')(app, passport);

$httpProvider.defaults.useXDomain = true;
delete $httpProvider.defaults.headers.common['X-Requested-With'];
$httpProvider.defaults.withCredentials = true;

反正我不知道还能做什么.我在网上找到的所有东西都不起作用.是否有可能与我使用 AngularJS 路由有关?我看不出这有什么重要的原因，但我有点猜不透.

Anyway, I don't know what else to do. Everything I found online didn't work. Is there a chance it has something to do with me using AngularJS Routing? I don't see any reason why this would matter, but I kinda ran out of guesses.

我的情况和这个很相似:Angular/Node/Express/Passport - 连接到 facebook 时的问题(CORS)

My situation is very similar to this one: Angular/Node/Express/Passport - Issues when connecting to facebook(CORS)

提前致谢！