Periodically knocks out an error message with a status of 500, is this related to the csrf token?

Question

CSRF

When going to the employees page, so far only in Chrome (I have not met it in Opera so far), it periodically knocks out such a window:

with the following accompaniment:


routes :

Route::any('employees/sort', '[email protected]')->middleware('auth');
Auth::routes();
Route::get('logout', '\App\Http\Controllers\Auth\[email protected]');
Route::group(['middleware' => 'auth'], function() {
    Route::resource('employees','EmployeesController');
});

When going to the employees page, ajax loads the content.

function ajaxLoad(filename, content) {
    content = typeof content !== 'undefined' ? content : 'content';
    $('.loading').show();
    $.ajax({
        type: "GET",
        url: filename,
        contentType: false,
        success:function(data){
            console.log(data);
            $('#'+ content).html($(data));
            $('.loading').hide();
        },
        error: function (xhr, status, error) {
            alert(xhr.responseText);
        }
    });
}
$(document).ready(function () {
    ajaxLoad('employees/sort');
});

But this gives out periodically, when repeating the same actions, it may not happen, and then it appears again.
What can be wrong?

Answer 1

Where do you include jQuery? in head?
https://tecadmin.net/referenceerror-is-not-defined...
and why are you using jQuery in the project and not Vue.js?