title: JavaScript not working on Safari (Mac and iOS)
body: <p>I've implemented an instant search function using javascript on my jekyll site:
  <a href="https://cecilialee.github.io" rel="nofollow noreferrer">https://cecilialee.github.io</a> (Repository: <a href="https://github.com/cecilialee/cecilialee.github.io" rel="nofollow noreferrer">https://github.com/cecilialee/cecilialee.github.io</a>)</p>
  
  <p>It works perfectly on Chrome and Firefox. However, when I test it on Safari, no matter on Mac or iPhone, the script doesn't seem working..</p>
  
  <p>What can I do?</p>