title: React web app does not work and keeps refreshing on mobile browser
body: <p>This web App(reactjs) works fine on desktop and tablets.</p>
  <p>However, when trying it on mobile browser(like Safari), the progress bar keeps flickering and refreshing like:</p>
  <p><a href="https://i.stack.imgur.com/5Cnoc.gif" rel="nofollow noreferrer">Please click to view the gif</a></p>
  <p>I have tried on Safari and Chrome(e.g. iOS12-14 &amp; Android 10-12), all display the same result.</p>
  <p>Anyone know why this happened?</p>
  <p>Or why the progress bar keeps flickering and refreshing on mobile browsers, but works well on desktop?</p>