lib/helpers.js
function(guess, filename) {
  var ct = guess;

  // Someone else just defaulted to octet-stream?
  if (!ct || ct === 'application/octet-stream') {
    ct = sg.mimeType(filename) || ct;
  }

  return ct || 'application/octet-stream';
}
function(guess, filename) {
  var ct = guess;

  // Someone else just defaulted to octet-stream?
  if (!ct || ct === 'application/octet-stream') {
    ct = sg.mimeType(filename) || ct;
  }

  return ct || 'application/octet-stream';
}
function ( guess , filename ) { var ct = guess ; // Someone else just defaulted to octet-stream? if ( ! ct || ct === 'application/octet-stream' ) { ct = sg . mimeType ( filename ) || ct ; } return ct || 'application/octet-stream' ; }
Returns the Content-Type.
Returns the Content - Type .