function updatePlaceholder(text, path) {
  const $input = Docsify.dom.getNode('.search input[type="search"]');

  if (!$input) {
    return;
  }

  if (typeof text === 'string') {
    $input.placeholder = text;
  } else {
    const match = Object.keys(text).filter(key => path.indexOf(key) > -1)[0];
    $input.placeholder = text[match];
  }
}
Prevent to Fold sidebar.

    When searching on the mobile end,
    the sidebar is collapsed when you click the INPUT box,
    making it impossible to search.