Hello fellows, I use pie.js library for my project and till now it works fine but I realized that on ie every time I receive this error "null" is null or not an object. How do I treat this error because is annoying, position and z-index not missing from my css for each element where I use pie js.

If anyone can help, thank you.

You'll have to provide more details. A URL to a site demonstrating the problem would be ideal.

I tried to make a debug and saw that code below has some problems, in fact last line: "return s.....". If comment that line css3 is not applied anymore.
/**
* Get the raw CSS value for the target style
* @return {string}
*/
getCss: cacheWhenLocked( function() {
var el = this.targetElement,
ctor = this.constructor,
s = el.style,
cs = el.currentStyle,
cssProp = this.cssProperty,
styleProp = this.styleProperty,
prefixedCssProp = ctor._prefixedCssProp || ( ctor._prefixedCssProp = PIE.CSS_PREFIX + cssProp ),
prefixedStyleProp = ctor._prefixedStyleProp || ( ctor._prefixedStyleProp = PIE.STYLE_PREFIX + styleProp.charAt(0).toUpperCase() + styleProp.substring(1) );
return s[ prefixedStyleProp ] || cs.getAttribute( prefixedCssProp ) || s[ styleProp ] || cs.getAttribute( cssProp );
} ),

I will return with a link.
I forgot to tell you that this happens only inside of wicket modal windows of my projects, hear us soon.

I've sent you an email with a java project. If you run localhost for that project with IE8 on debug mode the error will be generated when the modal window is closed.

Hello guys.
I have the same problem in a project i'm working on.
So if someone has a solution for this problem, please post it.

with best regards