reactjs中的跨域读取阻塞错误

Question

I'm learning ReactJS. I'm using fetch for getting data from an API. I used below code for it.

 fetch('http://myurl.com/api')
              .then(res => res.json())
              .then(res => console.log(res));

The API is hitting with status 200 ok but in response Nothing to Preview and in console getting below error

Cross-Origin Read Blocking (CORB) blocked cross-origin response http://myurl.com/api with MIME type application/json. See https://www.chromestatus.com/feature/5629709824032768 for more details.

I also added headers in below code.

 fetch("http://xxx.xxx.xxx.xxx:8081/api/category/popular",{
                 method: 'GET',
                  headers: {
                    'Access-Control-Allow-Origin': '*',
                  },
              })

I have below json in API response

  {  
   "data":[  
      {  
         "parent_id":"5c2f74e0a4d846591b2b1a40",
         "icon":"http://myurl.in:8081/default.png",
         "_id":"5c2f74e8a4d846591b2b1a41",
         "name":"Shop",
         "modified_at":"2019-01-04T14:59:52.791Z",
         "created_at":"2019-01-04T14:59:52.791Z"
      },
      {  
         "parent_id":"5c2f74e0a4d846591b2b1a40",
         "icon":"http://myurl.in:8081/default.png",
         "_id":"5c2f7566a4d846591b2b1a42",
         "name":"Home Service",
         "modified_at":"2019-01-04T15:01:58.507Z",
         "created_at":"2019-01-04T15:01:58.507Z"
      },
      {  
         "parent_id":"5c2f74e0a4d846591b2b1a40",
         "icon":"http://myurl.in:8081/default.png",
         "_id":"5c5c2dd30d017c401ec17253",
         "name":"Test",
         "modified_at":"2019-02-07T13:08:35.653Z",
         "created_at":"2019-02-07T13:08:35.653Z",
         "__v":0
      }
   ]
}

Answer 1

通常 CORS 标头（需要服务器更改）您需要在 API 服务器中设置允许的请求域。

Answer 2

Cross-Origin Read Blocking (CORB). It is designed to prevent the browser from delivering certain cross-origin network responses to a web page.

First Make sure these resources are served with a correct "Content-Type", ie, for JSON MIME type - "text/json", "application/json", HTML MIME type - "text/html".

Second: set credentials to same-origin

 fetch("https://example.com/api/request", {
            method: 'GET',
            body: JSON.stringify(data),
            credentials: "same-origin", //include, same-origin
            headers: {Accept: 'application/json', 'Content-Type': 'application/json',},
        })
    .then((data) => data.json())
    .then((resp) => console.log(resp))
    .catch((err) => console.log(err))