Answers for "javascript fetch cors error in chrome"

fetch request allow cors

// From http://foo.com/
fetch('http://bar.com/data.json', { 
    mode: 'no-cors' // 'cors' by default
}).then(function(response) {
    // Do something with response
});

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);
            }
 });