javascript - 为什么 Ajax 在通过 POST 方法提交表单后会在移动设备上刷新页面？

Question

我正在尝试在我的 Django 网站上提交表单。 Ajax 对于桌面上的表单提交工作正常，提交时不会刷新页面，而在移动设备上使用时，POST 数据已成功提交，但页面会在请求后刷新。 如何防止提交后刷新？

<script>
        $(document).ready(function(){
              $('#email_button_secondary_submit').on('click', function(e){
                $('#email_button_secondary_submit > span').removeClass('glyphicon glyphicon-chevron-right');
                $('#email_button_secondary_submit > span').addClass('fa fa-spinner fa-spin');
                $emailaddress = $('#email').val();
              $.ajax({
                type: "POST",
                url : '',
                cached: false,
                data: {
                    email: $emailaddress,
                    csrfmiddlewaretoken: $('input[name=csrfmiddlewaretoken]').val()
                },
                success: function () {
                    $('.Subscribe').hide();
                    $('.Thanks').show();
                },
                complete: function () {
                    $('#email_button_secondary_submit > span').removeClass('fa fa-spinner fa-spin');
                    $('#email_button_secondary_submit > span').addClass('glyphicon glyphicon-ok');
                },
                error: function () {
                    $('.Subscribe').hide();
                    $('.Error').show();
                    $('#email_button_secondary_submit > span').removeClass('glyphicon glyphicon-ok');
                    $('#email_button_secondary_submit > span').addClass('glyphicon glyphicon-remove');
                },
              });
              e.preventDefault();
            });
          });
    </script> 

编辑1: 我检测到点击 block 无法在移动设备上执行。(我注意到通过在之后添加一个alert() $('#email_button_secondary_submit').on('点击', 函数(e){

Answer 1

注意“function(e)”中的“e”。你应该补充一下。还要创建“e.preventDefault();”就像我下面的那样。

<script>
    $(document).ready(function(){
          $('#email_button_secondary_submit').on('click', function(e){
            e.preventDefault();
            $('#email_button_secondary_submit > span').removeClass('glyphicon glyphicon-chevron-right');
            $('#email_button_secondary_submit > span').addClass('fa fa-spinner fa-spin');
            $emailaddress = $('#email').val();
          $.ajax({
            type: "POST",
            url : '',
            cached: false,
            data: {
                email: $emailaddress,
                csrfmiddlewaretoken: $('input[name=csrfmiddlewaretoken]').val()
            },
            success: function () {
                $('.Subscribe').hide();
                $('.Thanks').show();
            },
            complete: function () {
                $('#email_button_secondary_submit > span').removeClass('fa fa-spinner fa-spin');
                $('#email_button_secondary_submit > span').addClass('glyphicon glyphicon-ok');
            },
            error: function () {
                $('.Subscribe').hide();
                $('.Error').show();
                $('#email_button_secondary_submit > span').removeClass('glyphicon glyphicon-ok');
                $('#email_button_secondary_submit > span').addClass('glyphicon glyphicon-remove');
            },
          });
        });
      });
</script>