Question

目前我的Angular2前端在localhost:3000上运行，NodeJS后端（基于KrakenJS）在localhost:8000上运行。当我输入凭据时，我称之为this.http.post('http://localhost:8000/login', body, { headers: contentHeaders }) api，但我在Chrome中收到以下回复：

XMLHttpRequest cannot load http://localhost:8000/login. The request was redirected to 'http://localhost:8000/', which is disallowed for cross-origin requests that require preflight.

但是当我调用this.http.post('http://localhost:8000/register', body, { headers: contentHeaders })时，一切正常并且完成所有注册魔术（散列pswd，将数据存储在database..etc中。）。

这是来自（register.js）的简单寄存器API：

 router.post('/', function (req, res) {

    if (req.body.email && req.body.password) {
        var User = require('../../models/user');

        User.create({
            name: req.body.name,
            email: req.body.email,
            password: req.body.password
        }).then(
            function() {
                res.render('user/registered', {registered: true});
            },
            function() {
                res.render('user/registered', {registered: false});
            }
        );
    } else {
        res.render('user/registered', {registered: false});
    }
});

以下是来自（login.js）的登录api：

 router.post('/', function (req, res) {

    passport.authenticate('local', {
        successRedirect: req.session.goingTo || '/',
        failureRedirect: '/login',
        failureFlash: true
    })(req, res);

});

Answer 1

使用以下命令在主服务器文件中启用CORS：

app.use(function(req, res, next) {
  res.header("Access-Control-Allow-Origin", "*");
  res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
  next();
});

Angular2，NodeJS＆amp;护照问题

1 个答案: