axios 跨域请求 headers 问题 - V2EX
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aoscici2000

axios 跨域请求 headers 问题

  •  
  •   aoscici2000 Aug 10, 2019 5052 views
    This topic created in 2451 days ago, the information mentioned may be changed or developed.

    有点搞不太东跨域这玩意:

    后端我设置了允许所有域名和请求头

    def set_default_headers(self, *args, **kwargs): self.set_header('Access-Control-Allow-Origin', '*') self.set_header('Access-Control-Allow-Headers', '*') self.set_header('Access-Control-Allow-Methods', 'POST, GET, PUT, DELETE, OPTIONS') 
    axios({ method: 'get', url: '/api/user', headers: {'jwtoken': '0000000'} }) 

    这个 0000000 的值该怎么拿到?

    后台打印出来的 headers 会多一个 Access-Control-Request-Headers: jwtoken

    6 replies    2019-08-10 19:11:27 +08:00
    SunriseFox
        1
    SunriseFox  
       Aug 10, 2019 via Android
    Access-Control-Allow-Origin' 的值不能是 '*',必须是具体的 Host
    weixiangzhe
        2
    weixiangzhe  
       Aug 10, 2019 via iPhone
    withcredential 还要加下
    whoami9894
        3
    whoami9894  
       Aug 10, 2019
    因为加了`jwttoken`的请求不属于简单请求,浏览器会先发一个 OPTIONS 预检,你需要先响应这个 OPTIONS 请求返回 ACAO 和 ACAH 头,接着才能收到真正的跨域请求,在真正的跨域请求中就可以直接 headers['jwttoken']
    不过不建议自己实现 CORS 的处理,有成熟的库
    aoscici2000
        4
    aoscici2000  
    OP
       Aug 10, 2019
    @SunriseFox 好像也可以的? 其他 put post 只要 headers 没要求都正常
    aoscici2000
        5
    aoscici2000  
    OP
       Aug 10, 2019
    @whoami9894 好像有点印象, 之前遇到过一些请求要先走一趟 OPTIONS 的, 先试试, 谢谢哈
    ffeii
        6
    ffeii  
       Aug 10, 2019 via iPhone
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