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Star selector defect in IE

Presentation

In IE, the star selector also selects comment tags. The behavior has changed through updates though, making it more dangerous in 1.2.3 (before, you had a valid element whose tag is "!"; now, you have a null element inside your collection).

Demo

<div class="test">	Selection result	Tag
<p>That's a paragraph</p>	Ignored
<div>That's a division</div>	Ignored
<!-- That's a comment -->	Ignored
<h3>That's a level 3 heading</h3>	Ignored
</div> → size of $$('test') =

Code

That's a paragraph

That's a division

That's a level 3 heading

function updateDisplay(element) {
	if (! element) {
		$('!-result').set('text', 'null');
		$('!-result-tag').set('text', 'Getting it would throw an error');
		return;
	}
	
	var tag = element.get('tag');
		
	$(tag + '-result').set('text', element);
	$(tag + '-result-tag').set('text', tag);
}