@function font-url()
This is a wrapper for the CSS url() function,
which simply prepends the global $font-path when appropriate.
Since type-4.0.0:
        - BUGFIX: Supports Base64 data URI’s, without prepending font-path
 
Parameters & Return
$path: (string)
A path relative to the fonts directory.
@return (string)
The full path to a font file, in CSS url('my/path') format.
Example
          
            scss
          
          
        
      
      
      
      tools.$font-path: '../fonts/';
$src: tools.font-url('sans/my-sans-font.woff2');
/* #{$src} */
    
          
            css
          
          
            
              compiled
            
          
        
      
      
      
      /* url("../fonts/sans/my-sans-font.woff2") */