Search by Queries/Bugs/Errors

Uncaught TypeError: Illegal invocation

Sometimes you got error Uncaught TypeError: Illegal invocation while submit a form using ajax in javascript. There could be any reason for this error but in my case I have found this error because I did not pass the the processData: false, to $.ajax() settings.

Solution for error uncaught TypeError: Illegal invocation

Add processData: false, to ajax settings

<script>
$('#form').on('submit', function(e){
    e.preventDefault();
    var formData = new FormData($(this)[0]);
    $.ajax({
        type: "POST",
        dataType: "json",
        processData: false,
        url: "/add-record",
        data: formData,
        success: function(data){
            return 'response';
            console.log(data);
        }
    }); 
});
</script>

Add processData: false, as key/value pair to ajax settings to avoid the error Uncaught TypeError: Illegal invocation while calling ajax on form submit.

Back to code snippet queries related javascript

Bootstrap Cmd CodeIgniter Css Drupal Git Html Javascript Jquery Laravel Nodejs Php Python Sql Typescript Wordpress

Uncaught TypeError: Illegal invocation

Solution for error uncaught TypeError: Illegal invocation

Random Code Snippet Queries: Javascript

Share on social media