停止IE10提交表格

Question

I have a form that is submitting some data to an external service. It work's in Chrome but the form keeps submitting in IE10. I have looked at this post but the solution is not working.

Here is my javascript code:

$('#scanUrl').submit(function(event){
        event.preventDefault();     
});

And then I am using jquery-1.11.3.min.js and my form looks like this:

<form style="margin-left:10%;" id="scanUrl">
  <div class="form-group">
    <label for="urlHolder" style="color: white; font-size: medium;">URL to Scan:</label>
    <input type="text" class="form-control" id="urlHolder" style="width: 40%;">
  </div>
  <button class="btn btn-primary btn-lg" >Scan</button>
  <button class="btn btn-primary btn-lg" id="helpButton">Help</button>
</form>

So I have tried many things (in no specific order):

1. event.stopPropagation();

2. if(!event) event = window.event;

3. event.returnValue = false;
4. .click() instead of .submit()
5. jquery 1.7 (older version of jquery) I know that 1.x supports IE6+ and 2.x supports IE9+. So I should be able to use 2.x but for safety I am using 1.x

Why is it submitting in IE10?

Answer 1

Try this pure JS code

var form = document.getElementById('scanUrl');
if (form.addEventListener){
    form.addEventListener('submit', handler, false);
} else if (element.attachEvent){
    form.attachEvent('onsubmit', handler);
} else {
    form ['onsubmit'] = handler;
}

function handler(event){
    var e = event ? event : window.event;
    if(e.prevnetDefault) {
        e.preventDefault();
    } else { 
        e.returnValue = false;
   }     
}

Answer 2

event.preventDefault() is correct and works. However, other lines in your full code may be confliting. Try to isolate this fragment in another HTML document. This works for me.