code: function fileToObject(file) {
    return {
      lastModified: file.lastModified,
      lastModifiedDate: file.lastModifiedDate,
      name: file.filename || file.name,
      size: file.size,
      type: file.type,
      uid: file.uid,
      response: file.response,
      error: file.error,
      percent: 0,
      originFileObj: file
    };
  }
docs: Fix IE file.status problem via coping a new Object