code: public Table url(URL url) throws IOException {
  	URLConnection connection = url.openConnection();
  	String contentType = connection.getContentType();
  	String[] pair = contentType.split(";");
  	String mimeType = pair[0].trim();
  	Charset charset = pair.length == 0 ? Charset.defaultCharset() : Charset.forName(pair[1].split("=")[1].trim());
  	DataReader<?> reader = registry.getReaderForMimeType(mimeType);
  	return reader.read(new Source(connection.getInputStream(), charset));
      }
docs: Reads the given URL into a table using default options
  Uses appropriate converter based on mime-type
  Use {@link #usingOptions(ReadOptions) usingOptions} to use non-default options