jQuery不捕获表单提交

Question

I am using validationEngine to validate a form that is also launching a please wait modal.

Here's the code I am using to do this:

$("#main_form").validationEngine({
        onValidationComplete: function(form, status){
            if(status) {
                ShowProgressAnimation();
                form.validationEngine('detach');
                form.submit();
            }
        }
    });

The issue I am having is I have a script that launches window.onbeforeunload.

$("form").submit(function(e){
            window.onbeforeunload = UnPopIt;
        }); 

Normally it would ignore form submissions, but in this case because of the form.submit it's not.

Is there a proper way to detect this and stop the window.onbeforeunload from loading if it detects the form.submit?

Thanks!

EDIT: I also forgot to add I think this issue only exists in IE.

Answer 1

The given script does not launch window.onbeforeunload , it just assigns a function to it.

If you want to prevent form submission, you need to return false in the submit handler:

$("form").submit(function(e){
    window.onbeforeunload = UnPopIt;
    return false;
});