IE8 only sends with button, not send?

Question

So, this is strange, and it worked for me about a month ago, before I made a bunch of code updates. In any case, the problem is that the live submit handler usually even starts in IE8, however, if I start it with the click of a button, it works. See below:

HTML

        <label>Add Attachment</label>
        <form class="file_upload" method="post" enctype="multipart/form-data" target="upload_target" action="">
            <input name="binary" id="file" size="27" type="file" /><br />
            <br><input type="submit" name="action" value="Upload" /><br />
            <input type="button" class="test" value="test">
            <iframe class="upload_target" name="upload_target" src="" style=""></iframe>
        </form>
        <label>Attachments</label>
        <ul class="upload_output">
        <li class="nofiles">(No Files Added, Yet)</li>
        </ul>

JavaScript:

function file_upload($theform,item_id){
    $theform.attr('ACTION','io.cfm?action=updateitemfile&item_id='+item_id);
    if($theform.find('[type=file]').val().length > 0){
        $('iframe').one('load',function(){
            $livepreview.agenda({
                action:'get',
                id:item_id,
                type:'item',
                callback:function(json){
                    $theform.siblings('.upload_output').append('<li style="display:none" class="file-upload"><a target="blank" href="io.cfm?action=getitemfile&item_file_id='+json[0].files.slice(-1)[0].item_file_id+'">'+json[0].files.slice(-1)[0].file_name+'</a> <a style="color:red" title="Delete file?" href="#deletefile-'+json[0].files.slice(-1)[0].item_file_id+'">[X]</a></li>').children('li').fadeIn();
                    $theform.siblings('.upload_output').find('.nofiles').remove();
                }
            });
            //Resets the file input. The only way to get it cross browser compatible as resetting the val to nothing
            //Doesn't work in IE8. It ignores val('') to reset it.
            $theform.append('<input type="reset" style="display:none">').children('[type=reset]').click().remove();
        });
    }
    else{
        $.alert('No file selected');
        return false;
    }
}
/* FILE UPLOAD EVENTS */
//When they select "upload" in the modal
$('.file_upload').live('submit',function(event){
    alert('hello world');
    file_upload($('.agenda-modal .file_upload'),$('.agenda-modal').attr('data-defaultitemid'));
});
/* This is the code that makes it work..., but i dont want it! it should alert hello world on the submit button! */
$('.test').live('click',function(event){
    $('.file_upload').submit();
});

Answer 1

This is by design and not at all isolated from IE 8. It has always been in all browsers.

The event submitdoes not occur if you call the method submitonly when you submit the form using the submit button.

Answer 2

• reset, -

  $('.file_upload').reset();
  

• , ? DOM , click,

  $('.test').click(function(){
      $('.file_upload').submit();
  });