WebView: Resizing window results in content moved away on Apple WebKit

[atsushieno]

I'm trying to use choc on my WebView based C++ app. My app seems to work in general, but if I set enableDebugMode = true on its options, perform the "Inspect Element" command on the WebView, and resize the choc::ui::DesktopWindow on macOS, then the WebView content is moved beyond zero-height and content around the top area goes out of the visible area.

It is reproducible with tests/choc_webview_example.h too (needs longer content page so that it becomes scrollable). It does not happen if I simply navigate to the example demo URL (github) and operate the same though.

For the record, I had the same experience when I used saucer.

Confirmed with 2d58413 / macOS Sonoma 14.7 / AppleClang 16.0.0.16000026.