./ relative paths not replaced

[mix3d]

If a reference to a css or js file is prepended with a ./, the parser will not replace the reference, but an open local reference works fine.

eg:

<link href="./assets/css/app_icons.min.css" rel="stylesheet">
<link href="./assets/css/application.css" rel="stylesheet">

will not work, but the following does:

<link href="assets/css/app_icons.min.css" rel="stylesheet">
<link href="assets/css/application.css" rel="stylesheet">

[mix3d]

Seems like this is related to #88 .

Similarly, if I have a CDN setup to transparently grab all files from my site, such that all image, asset, and js files are prefixed with https://cdn.mysite.com, it will also ignore the reference and not update.

Right now I am prepared to do a false-reference, but prepending a non-existing folder with a unique string, and doing string replaces, but that seems very counter intuitive