Error sending request with fetch?

Question

JavaScript

decided to slowly cut out jquery, started with ajax requests.

It was:

function uAjax(url, data, requestType){
  return	$.ajax({
    'type':requestType,
    'url':url,
    'dataType': 'json',
    'data':data
  })
}
uAjax("/info", {}, "GET")

Everything works, the request leaves, the data comes. Rewrote (according to https://github.com/github/fetch ):

import 'whatwg-fetch'
function uFetch(url, data, requestType){

  return fetch(url, {
    method: requestType,
    body: data
  });
}

uFetch("/info", {}, "GET").then((response) => {console.log(response.json());response.json()})

The request is not sent + I get a bunch of errors:

What did I code wrong?

Answer 1

const arrM = {
  list: arr.list.map(n => ({
    id: n.id,
    pos: {
      dv: n.pos.dV.match(/[\d\-]+/)[0],
    },
  })),
};

Answer 2

I say - the request is not sent (I don’t see it in the console), so first and third
i.prntscr.com/1olGmL8DRgW75m4dOeRyXQ.png
are not relevant after response.text():
i.prntscr.com/SMu52MA3TlK1ZXKmeZpd4w.png