Can't select HTML5 element's children in IE8 with jQuery selector

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I found some posts with similar issues, but this is something different. I upgraded from jQuery 1.4 to 1.4.2 after I read another post, but the problem still presents itself

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礼貌的吻别

2020-12-31 15:47
<section> is an HTML5 element not supported in IE8, you'll have issues using it as an element, including finding children beneath it. It isn't a jQuery problem, it's a basic DOM problem, here's a demonstration:

All I'm doing is giving the element an ID to simplify things:
```
<section class="pleaseWaitButton" id="btn">
```
Then try and get it's children:
```
document.getElementById('btn').children.length
```
This gets you a 2 in HTML5 browsers, an 0 in IE.
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星月不相逢

2020-12-31 16:11

Internet Explorer 8 has quirky support for HTML 5, IE6 and IE7 plain just don't support it.

You need to shiv the HTML 5 elements in order to style and properly use methods/properties such as innerHTML, getElementsByTagName on them.

This will work in IE6-IE8:

<!doctype html> 
<html> 
<!--[if lt IE 9]>
<script src="http://html5shiv.googlecode.com/svn/trunk/html5.js"></script>
<![endif]--> 
<section class="pleaseWaitButton"> 
    <p><img src="images/please_wait.png" alt="Please wait" /></p> 
        <p><input type="image" src="images/add_to_cart.png" alt="Add to cart"/></p> 
</section> 
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.js"></script> 
<script> 
    alert( $('.pleaseWaitButton').find('input').length ) 
    alert( $('.pleaseWaitButton input').length ) 
    alert( $('.pleaseWaitButton > p > input').length ) 
</script> 
</html>

Live Demo: http://medero.org/html5.html

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