escape special character in progid:DXImageTransform.Microsoft.AlphaImageLoader

Question

I've found very strange action in filter: progid:DXImageTransform.Microsoft.AlphaImageLoader

<style>
 .some{ width: 16px; height: 16px;
   filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src="C:/Users/usr7/Desktop/(x86)/close.png", sizingMethod='scale');
 }
</style>

<div class='some'>
 hello
</div>

If AlphaImageLoader' src has brace character that is ( ) , It don't work at ie8 and ie9. Is there any method to escape brace characters?

Answer 1

You should be able to use escaping for special chars inside CSS string tokens, ie replace the parentheses symbols with \\29 and \\28 (which represent left and right parentheses, accordingly).

Concrete Example

src="C:/Users/usr7/Desktop/\29x86\28/close.png"

References

• CSS tokenazation
• Escaped characters in CSS