$http.js

function £http(method, uri, body) {
  let opts = {
    mode: 'cors',
    method: method,
    credentials: 'include',
    headers: {
      'Content-Type': 'application/json',
      'Accept': 'application/json',
      'X-XSRF-TOKEN': getCookieValue('XSRF-TOKEN')
    }
  }
  if (body) {
    opts.body = JSON.stringify(body)
  }
  return fetch(uri, opts ).then(response => {
    return response.json().then(data => {
      if (response.ok) {
        return data;
      } else {
        return Promise.reject({status: response.status, data});
      }
    });
  });
}