fetch携带cookie

fetch获取的东西, 默认是无光本站的cookie的, 所以请求时是默认不带cookie, response里的set-cookie也是无效的,设置credentials: 'includes'启用cookie.
例:

fetch('/login?name=slaver00&psw=123', { method: 'POST', credentials: 'includes' })
    .then(...);