On iOS 11 (latest beta) I'm seeing a case where, when you scroll in a UiWebView, the content that was previously offscreen doesn't render AT ALL (or renders only after a few seconds). Here's a screen recording of this occurring to give a feel for the issue: https://youtu.be/qZXHgDbvBQI
This seems to happen if you keep your finger on the screen while scrolling (i.e. never let a touchend happen) or if you do a slow speed momentum scroll (flick the screen lightly). In the video, the times when the content is finally rendered is when the touchend happens - but as you can see, as long as I keep the finger on the screen, the content won't render (you just get a blank section on the screen).
Is anyone else experiencing this issue?
It's consistently reproducable with a simple test case (that's what's showing in the video).
Thanks.