rewrite_css should not apply to files with an @import in the middle.

[GoogleCodeExporter]

See 
http://www.princesspolly.com.au/HttpCombiner.ashx?s=CSSGlobal&t=text/css&v=20121
1141730

Note the @import in the middle.  This must be created by some other combiner 
and it is not a legal result.  Yet mod_pagespeed will rewrite that CSS file, 
moving the import to the top:

http://www.princesspolly.com.au/A.HttpCombiner.ashx,qs=CSSGlobal,at=text,_css,av
=201211141730.pagespeed.cf.FNJS1LATKX.css

mod_pagespeed should consider this file invalid and avoid applying rewrite_css 
(though fallback_rewrite_css can work).

Original issue reported on code.google.com by jmara...@google.com on 19 Jun 2013 at 3:57

[GoogleCodeExporter]

I believe this is a CSS parser problems, since MPS only manipulate compiled CSS 
not raw CSS, and if the parser had detected an error with the CSS then MPS 
wouldn't combine it.

Original comment by matterb...@google.com on 19 Jun 2013 at 8:33

[GoogleCodeExporter]

This issue was closed by revision r3194.

Original comment by sligocki@google.com on 24 Jun 2013 at 3:43

• Changed state: Fixed

[GoogleCodeExporter]

Original comment by sligocki@google.com on 24 Jun 2013 at 3:44

• Added labels: Milestone-v29, release-note

[GoogleCodeExporter]

Original comment by sligocki@google.com on 25 Jun 2013 at 5:08