首页 > 解决方案 > 如何从 React 发送 CORS 请求?

问题描述

我在使用标头中的令牌发送 CORS 请求时遇到问题。获取代码:

fetchApi() {
    fetch('http://some-link.com',
    {
        headers: {
          'Accept': 'application/json',
          'auth-token': 'xxxxxxxxx'
        },
        method: "GET"
    }).then(response => response.json())
        .then(function(response){
            this.setState({hits:response});
        }).catch(function(error) { console.log(error); });

        console.log(this.state.hits);
};

控制台日志:从源“ http://localhost:3000 ”获取“ http://some-link.com ”的访问已被 CORS 策略阻止:访问控制不允许请求标头字段 auth-token-预检响应中的允许标头。

网络请求日志:

General
Request URL: http://some-link.com
Request Method: OPTIONS
Status Code: 200 OK
Remote Address: some_ip:80
Referrer Policy: no-referrer-when-downgrade

Response Headers
Access-Control-Allow-Headers: origin, x-requested-with, content-type, auth_token
Access-Control-Allow-Methods: POST, GET, PUT, DELETE, OPTIONS
Access-Control-Allow-Origin: *
Cache-Control: no-cache, private
Connection: Keep-Alive
Content-Length: 8
Content-Type: application/json
Date: Tue, 13 Nov 2018 13:30:35 GMT
Keep-Alive: timeout=5, max=100
Server: Apache/2.4.10 (Debian)

Request Headers
Provisional headers are shown
Access-Control-Request-Headers: auth-token
Access-Control-Request-Method: GET
Origin: http://localhost:3000
Referer: http://localhost:3000/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.77 Safari/537.36

有什么想法可能是错的吗?

标签: reactjshttp

解决方案


您必须更改服务器设置以允许标头“auth-token”。

完成此操作后,您的请求将生效。

您当前允许“auth_token”,而不是“auth-token”。

或者,在前端更改标题名称,如下所示:

 headers: {
   'Accept': 'application/json',
   'auth_token': 'xxxxxxxxx'
 }

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