Space incorrectly removed when using svg gaussian blur filter

[ltressens]

This expression (css blur for Firefox) :

.blur
{
  filter: url('data:image/svg+xml;utf8,<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><defs><filter id="gaussian_blur"><feGaussianBlur in="SourceGraphic" stdDeviation="4" /></filter></defs></svg>#gaussian_blur');
}

Is minified like this :

.blur{filter:url("data:image/svg+xml;utf8,<svgversion=\"1.1\"xmlns=\"http://www.w3.org/2000/svg\"xmlns:xlink=\"http://www.w3.org/1999/xlink\"><defs><filterid=\"gaussian_blur\"><feGaussianBlurin=\"SourceGraphic\"stdDeviation=\"4\"/></filter></defs></svg>#gaussian_blur")}

Spaces are removed where they should not : "svg version", "filter id", etc...

[akaihola]

See also:
http://stackoverflow.com/questions/13949588/yui-compressor-is-removing-spaces-from-filter-values
https://yuilibrary.com/projects/yuicompressor/ticket/2528170

[akaihola]

Work-around: Replace spaces with %20. Firefox happy, minifier doesn't touch. Don't know about other browsers.

[marcelstoer]

I believe that is inherited from YUI Compressor: yui/yuicompressor#141.