src/util.js
function basename (filename, ext) {
  return path.basename(
    filename.replace(/^[a-zA-Z]:/, '').replace(/\\/g, '/'),
    ext
  )
}
function basename (filename, ext) {
  return path.basename(
    filename.replace(/^[a-zA-Z]:/, '').replace(/\\/g, '/'),
    ext
  )
}
function basename ( filename , ext ) { return path . basename ( filename . replace ( / ^[a-zA-Z]: / , '' ) . replace ( / \\ / g , '/' ) , ext ) }
Use a custom basename functions instead of the shimed version because it doesn't work on Windows
Use a custom basename functions instead of the shimed version because it doesn t work on Windows