Having '@' in image filename breaks all css.

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Use an image with an '@' in the filename somewhere in the css.
Example:
background-image: url(/sprite_20130411@2x.png);

This is a common port of the ios convention for naming files.
http://developer.apple.com/library/ios/#documentation/2DDrawing/Conceptual/Drawi
ngPrintingiOS/SupportingHiResScreensInViews/SupportingHiResScreensInViews.html#/
/apple_ref/doc/uid/TP40010156-CH15-SW1

What is the expected output?
Rendered image.

What do you see instead?
All css stops working.

What version of the product are you using? On what operating system?
ie9.js 2.1(beta4)

Original issue reported on code.google.com by blaine.s...@vitals.com on 15 May 2013 at 3:21

[GoogleCodeExporter]

I probably should have listed, that this is an issue with Windows XP and IE8.

Original comment by blaine.s...@vitals.com on 15 May 2013 at 3:22