Iframe中的表单未使用jQuery在IE11中提交

Question

From below code, the alert function should be executed after the form submit.But it executes at first time, after that it won't.It executes fine in all browsers except IE11.

Code:

<iframe id="iframeID">
<form id="profile">
<input type="file" id="UPLOADED_FILE" name="UPLOADED_FILE" value="" >
<input type="submit" name="save_photo" value="Save" onclick="pressUpload();">
</form>
</iframe>

function pressUpload() {
    var iframe_document = document.getElementById('iframeID').contentWindow.document;
    var form_profile = $(iframe_document).find('#profile');
    var file_input_field = $(form_profile).find('input[name=UPLOADED_FILE]');

    $(file_input_field).bind('change', function () {
        var value = $(this).val();

        if (value) {

            $(form_profile).submit();


            if (navigator.userAgent.indexOf("MSIE") > -1 && !window.opera) {
                iframe.onreadystatechange = function () {
                    if (iframe.readyState == "complete") {

                        alert("HI");
                    }
                };
            }
        }
    })
}

Answer 1

That is invalid way to write markup. but you should not use any element between iframe's opening/closing tags like you have done in your case.

Actually that only gets executed when this element is not supported in any browser. @MDN you can see the example1

<iframe src="page.html" width="300" height="300">
 <p>Your browser does not support iframes.</p>
</iframe>