Fetch: post json data, application/json change to text/plain

Question

I\'m using chrome 53.0.2785.116 m (64-bit).

I got the following headers on devtools. The problem is marked with a \"//\" comment. content type is really not allowing

Answer 1

Thanks a lot! More than 6 hours to solve this.

In my nodejs server

npm install --save cors

at app.js I inserted the lines:

var cors = require('cors');
var app = express(); 
app.use(cors());

and in my react client:

var shape_for_db = JSON.stringify(layer.geometry);
const trechoRede = {
    method: "POST",
    mode: "cors",
    headers: {
        'Accept': 'application/json',
        'Content-Type': 'application/json'
    },
         body: shape_for_db
};