YUI Compressor is removing spaces from filter values

Question

I have a css containing filter for adding Grayout images in FF like this:-

filter: url(\"data:image/svg+xml;utf8,

Answer 1

I gather if your using the latest version (2.4.7) already, then this is likely something their CSS minifier doesn't account for and you will want to raise a bug report with them at http://yuilibrary.com/projects/yuicompressor/

I could not see any configuration option that would help in this case e.g. minifying blocks on to one line but not removing whitespace in-between.