am f0daf562: Merge "fix bug causing anchors to fail on preview landing page; exit the onhashchange listener if there\'s no searchbar on the page" into lmp-dev

* commit 'f0daf562f766d1cf15583e171b94107c193e5db4':
  fix bug causing anchors to fail on preview landing page; exit the onhashchange listener if there's no searchbar on the page