Running the following gets me an System.NullReferenceException: Object reference not set to an instance of an object. error.
<tabView:SfTabItem Title="Favorites">
<tabView:SfTabItem.Content>
<Grid BackgroundColor="Green" x:Name="FavoritesGrid" >
<WebView HeightRequest="100" WidthRequest="100" >
<WebView.Source>
<HtmlWebViewSource Html="Hi"></HtmlWebViewSource>
</WebView.Source>
</WebView>
</Grid>
</tabView:SfTabItem.Content>
</tabView:SfTabItem>
If I move the WebView out of the SfTabView and put it elsewhere on the page, it renders fine with no errors. Is this a bug, or am I doing something wrong? Same results if I use a url instead of html. They both work outside SfTabView, but not in the item template.