Ajax Post to Laravel - CSRF Token Mismatch

I had the same problem. Try to put an include CSRF tag in your meta like so:

<meta name="csrf-token" content="{{ csrf_token() }}" />

And read it in your ajax code like so:

<script type="text/javascript">
$.ajaxSetup({
    headers: {
        'X-CSRF-TOKEN': $('meta[name="csrf-token"]').attr('content')
    }
});
</script>

Last Update

Please modify your url variable like so:

jQuery.ajax({
    type: "POST",
    url: '/my-route'+'?_token=' + '{{ csrf_token() }}',
    data: data,
    success: function() {
         console.log("A");
    }
  });

Try This

    var formData = new FormData();
    formData.append("_token", "{{ csrf_token() }}");
    $.ajax({
    headers: {
    'X-CSRF-TOKEN': "{{ csrf_token() }}"
    },
    url: 'save_search',
    data: formData,
    processData: false,
    type: 'POST',
    success: function ( data ) {
    alert( data );
    }
    });

I encountered an issue with my Laravel 8 where I noticed that the token was being sent in the URL through my AJAX request and the URL was correct. However, despite this, I was still receiving an error. Upon further investigation, I realized that I had changed the value of 'same_site' in my session.php file to "none".

After changing it back to 'same_site' => "lax" , I was able to resolve the issue.