Hey,
We've run into an issue where WKWebView contents are not always available for VoiceOver users. It seems to occur when WKWebView contents are loaded asynchronously.
I have a sample project where this can be reproduced and a video showing the issue. See FB21257352
The only solution we currently see is forcing an update continuously using UIAccessibility.post(notification: .layoutChanged, argument: nil), but this is ofc a last resort as it may have other unintended side effects.