带cookie的跨域请求

Question

老师 请问带cookie的跨域请求 是指前端携带cookie发出去的请求吗？可是我用node req.headers.cookie 读取不到前端的cookie（设置了相关的头 前端也加了withcred....） 如何查看携带的cookie 有啥应用场景？

node 端

var express = require('express')

var app = express()

app.all('/textcookie', function (req, res, next) {

res.header('Access-Control-Allow-Origin', 'http://localhost:3000')

res.header('Access-Control-Allow-Methods', 'PUT, GET, POST')

res.header('Access-Control-Allow-Headers', 'X-Requested-With,If-Modified-Since,Cache-Control,Content-Type')

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

res.header("P3P","CP=CAO PSA OUR");

res.cookie('name', 'tobi', { domain: 'localhost', path: '/', secure: true });

// console.log(req.headers.cookie)

res.send(req.headers.cookie)

})

app.listen(8081)

html端

$.ajax({

type: 'post',

url: 'http://localhost:8081/textcookie',

xhrFields: {

withCredendtials: true

},

crossDomain: true,

success: function (result) {

console.log(result)

}

})

Answer 1

newming 2018-03-17 08:50:51

https://github.com/expressjs/cookie-parser

express 的话可以使用这个中间件