i found solution: http://social.msdn.microsoft.com/Forums/ie/en-US/7d02173f-8f45-4a74-90bf-5dfbd8f9c1de/ie-11-issue-with-two-password-input-fields

I found the error - if the form has an input field type="password", then the method form.success is called immediately
in IE11

I have a similar problem in IE11:
after form.submit() immediately called form.success with empty data and then the controller action

in FF it works.

I changed the line 7524 in jquery.easyui-1.3.6.js ("onload" instead "load"):
 _44e.bind("onload", cb);

....and the form.success is not called in IE11

no reaction ((((
EasyUI a good framework, but the lack of response to the detected errors can not make it better (((

if initially draggable element is disabled, it is not initialised !!!
why is this happening can be seen from the source:

Code:

	$.fn.draggable = function(options, param){
		if (typeof options == 'string'){
			return $.fn.draggable.methods[options](this, param);
		}
....................

			if (opts.disabled == true) {
				$(this).css('cursor', '');
//				$(this).css('cursor', 'default');
				return;
			}
.....................

initialization occurs below:

Code:

var handle = null;
            if (typeof opts.handle == 'undefined' || opts.handle == null){
                handle = $(this);
            } else {
                handle = (typeof opts.handle == 'string' ? $(opts.handle, this) : opts.handle);
            }
			$.data(this, 'draggable', {
				options: opts,
				handle: handle
			});

this is bug or feature?

create a draggable element that initially he disabled.

Code:

$('.selector').draggable({
                            revert:true,
                            disabled: true,
                            proxy: .....
                            .......
                        });

if the 'disabled == true', $.data(this, "draggable") is empty, see fragment of code:

Code:

if(_32.disabled==true){
$(this).css("cursor","");
return;
}
var _34=null;
if(typeof _32.handle=="undefined"||_32.handle==null){
_34=$(this);
}else{
_34=(typeof _32.handle=="string"?$(_32.handle,this):_32.handle);
}
$.data(this,"draggable",{options:_32,handle:_34});

then I make it enabled, event handlers and proxy need to be defined again