AssetCompressHelper::url() does not add base name

[saeideng]

home page : http://localhost/sub_folder

$this->AssetCompress->url('css-combined.css');

What happened

returns

/assets/css/css-combined.v123.css

What you expected to happen

should be

/sub_folder/assets/css/css-combined.v123.css

version :

markstory/asset_compress	3.3.0

[saeideng]

if this is expected only add a note to top of method
change that is not BC
I just want to know this will not change for avoid duplicating with bellow code

        $path = $this->AssetCompress->url($css);
        $path = $this->Url->build($path);

[markstory]

It has been a while since I looked at this code. I will see if base paths have ever been included in asset paths.