Integration KCfinder - invalid URL

  config.filebrowserBrowseUrl = '/kcfinder/browse.php?type=files';
  config.filebrowserImageBrowseUrl = '/kcfinder/browse.php?type=images';
  config.filebrowserFlashBrowseUrl = '/kcfinder/browse.php?type=flash';
  config.filebrowserUploadUrl = '/kcfinder/upload.php?type=files';
  config.filebrowserImageUploadUrl = '/kcfinder/upload.php?type=images';
  config.filebrowserFlashUploadUrl = '/kcfinder/upload.php?type=flash';