Why is the form not submitting in firefox?

Question

JavaScript

Good afternoon. The wonderful firefox browser does not submit the form via ajax. Instead, the page is simply refreshed. Here is the code

$(document).ready(function(){ 
                              $("#zayava").submit(function() {
                    event.preventDefault();
                    var form_data = $(this).serialize(); 
                    $.ajax({
                    type: "POST", 
                    url: "<?php echo get_template_directory_uri();?>/ufpdf/action-form.php",
                    data: form_data,
                    success: function() {
                         $('.success').fadeIn();
                         },
                    error: function() {
                         $('.error').fadeIn();
                         }
                    });	
                });
          });

In opera and chrome everything works as it should.

Answer 1

you have event.preventDefault();but no event is passed.
It's easiest on submit return false; prescribe.