persistUnderlyingWidget property
When set to true, the underlying WebView will persist over MapView disposals.
As a consequence, the WebView widget will not be reloaded even when the MapView widget is disposed or rebuilt. This can lead to improved performance in cases where the WebView's content remains consistent between widget rebuilds. However, it also means that the WebView may persist in memory until the entire Flutter application is removed from memory.
Default is false.
Implementation
final bool? persistUnderlyingWidget;