code: @Nonnull
    public final UnifiedResponse setAllowMimeSniffing (final boolean bAllow)
    {
      if (bAllow)
        removeCustomResponseHeaders (CHttpHeader.X_CONTENT_TYPE_OPTIONS);
      else
        setCustomResponseHeader (CHttpHeader.X_CONTENT_TYPE_OPTIONS, CHttpHeader.VALUE_NOSNIFF);
      return this;
    }
docs: When specifying <code>false</code>, this method uses a special response
  header to prevent certain browsers from MIME-sniffing a response away from
  the declared content-type. When passing <code>true</code>, that header is
  removed.
  
  @param bAllow
  Whether or not sniffing should be allowed (default is
  <code>true</code>).
  @return this