Hmm, tricky question, Laszlo! The problem is, you won’t know what the content’s height is until after it is loaded, but Flutter *layout* happens before the content is loaded. So I think the best you can do is guess the height beforehand and then adjust once it’s loaded. That’s suboptimal though.
Kenji, are you sure you’re using the correct plugin? There is a different community-based plugin where that might be happening. But that doesn’t seem to be happening with this plugin: https://pub.dartlang.org/packages/webview_flutter If you’re see that with THAT plugin, please file an issue!