iOS UI lag around hiding/showing URL bar


#1

iOS 10.2.1 (14D27)
Brave iOS 1.3.1 (17.02.14.11)

  1. Visit https://medium.com/@tomdale/glimmer-js-whats-the-deal-with-typescript-f666d1a3aad0
  2. Scroll down a page a ways
  3. Notice scroll is smooth while scrolling only downward.
  4. Scroll up slightly, and notice the UI hitch as the URL bar comes back into view. Notice scrolling is smooth again once the bar is fully visible
  5. Scroll down slowly, and notice the UI hitch as the URL and bottom UI bar fade away. Notice scrolling is smooth again once the bar has finished animating to its collapsed state.

#2

Confirmed issue while scrolling. Issue logged and can be tracked here


#3