javascript fetch no-cors code example

Example 1: Add no cores to fetch

// There were no quick access to mode and credentials to other fetch answers.
// Data you'll be sending
const data = { funny: "Absolutely not", educational: "yas" }

fetch('https://example.com/api/', {
  method: 'POST', // The method
  mode: 'no-cors', // It can be no-cors, cors, same-origin
  credentials: 'same-origin', // It can be include, same-origin, omit
  headers: {
    'Content-Type': 'application/json', // Your headers
  },
  body: JSON.stringify(data),
}).then(returnedData => {
  // Do whatever with returnedData
}).catch(err => {
  // In case it errors.
})

Example 2: fetch api javascript

fetch('http://example.com/movies.json')
  .then((response) => {
    return response.json();
  })
  .then((myJson) => {
    console.log(myJson);
  });

Example 3: et the request's mode to 'no-cors' to fetch the resource with CORS disabled

var proxyUrl = 'https://cors-anywhere.herokuapp.com/',
    targetUrl = 'http://catfacts-api.appspot.com/api/facts?number=99'
fetch(proxyUrl + targetUrl)
  .then(blob => blob.json())
  .then(data => {
    console.table(data);
    document.querySelector("pre").innerHTML = JSON.stringify(data, null, 2);
    return data;
  })
  .catch(e => {
    console.log(e);
    return e;
  });

Example 4: javascript cors error

$.ajax({
            headers: { "Accept": "application/json"},
            type: 'GET',
            url: 'http://cl.ly/2wr4',
            crossDomain: true,
            beforeSend: function(xhr){
                xhr.withCredentials = true;
          },
            success: function(data, textStatus, request){
                console.log(data);
            }
 });

Example 5: fetch suntax

fetch('http://example.com/movies.json')
  .then((response) => {
    return response.json();
  })
  .then((data) => {
    console.log(data);
  });