PNG images used as background-image not being compressed?

[GoogleCodeExporter]

This is using the latest version of ModPagespeed.

Maybe I am missing something, but although compression appears to be working 
fine, when I load: 

http://www.bimomotor.com/category/

I can see that the .png images used as background images are not being 
compressed - is this normal?

Original issue reported on code.google.com by rwap.services on 27 Oct 2012 at 2:29

[GoogleCodeExporter]

I presume you mean PNGs in your CSS?

I assume you have rewrite_css enabled since we don't optimize images in CSS 
that we don't analyze/rewrite.

Regardless, the CSS fails validation for CSS2.1 which is what we mostly handle 
(we handle some CSS3 constructs but not many) and we don't optimize CSS we 
can't parse.

Original comment by matterb...@google.com on 29 Oct 2012 at 1:27

• Changed state: RequestClarification

[GoogleCodeExporter]

Yes - having addressed the CSS issue the background PNGs are correctly 
compressed - this can therefore be closed

Original comment by rwap.services on 7 Nov 2012 at 3:27

[GoogleCodeExporter]

Great, thanks for following up.

Original comment by jmaes...@google.com on 7 Nov 2012 at 3:29

• Changed state: Closed