WebView2 is not contained within ScrollViewer

Description

When placing a WebView2 into a ScrollViewer, it does not remain within the constraints of the ScrollViewer. The WebView2 will render above and below the ScrollViewer

Version
SDK: 1.0.705.50
Runtime: 88.0.705.63
Framework: WPF, .NET Framework 4.8
OS: Win10

Repro Steps

1. Create a .NET Framework 4.8 WPF application.
2. Add the WebView2 nuget package
3. Replace MainWindow.xaml with the following

<Window x:Class="WpfWebView2_.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
        xmlns:wpf="clr-namespace:Microsoft.Web.WebView2.Wpf;assembly=Microsoft.Web.WebView2.Wpf"
        mc:Ignorable="d"
        Title="MainWindow" Height="500" Width="800"
        MinWidth="450" MinHeight="500">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="50"/>
            <RowDefinition Height="*"/>
            <RowDefinition Height="50"/>
        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="*"/>
            <ColumnDefinition Width="300"/>
        </Grid.ColumnDefinitions>
        <Border Background="#2D2D30" Grid.ColumnSpan="2"/>
        <Border Grid.Row="1" Grid.Column="1" BorderBrush="Black"  BorderThickness="1">
            <!--<sampleproject:SampleUserControl/>-->
            <ScrollViewer>
                <StackPanel>
                    <Rectangle Height="200" Fill="Blue"/>
                    <wpf:WebView2 Source="https://www.bing.com" Height="250"/>
                    <TextBlock TextWrapping="Wrap" Text="Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum."/>
                    <wpf:WebView2 Source="https://www.bing.com" Height="250"/>
                    <wpf:WebView2 Source="https://www.bing.com" Height="250"/>
                    <wpf:WebView2 Source="https://www.bing.com" Height="250"/>
                </StackPanel>
            </ScrollViewer>
        </Border>
        <Border Background="#2D2D30" Grid.ColumnSpan="2" Grid.Row="2"/>
    </Grid>
</Window>

4. Run the application - move the scroll bar up and down. Notice the WebView2 covers the gray bars

Screenshots

Additional context

AB#27046547

Reproduce the issue with the provided MainWindow.xaml in a .NET Framework 4.8 WPF application, using the listed WebView2 SDK and runtime versions. Start by examining how the WebView2 controls behave inside the ScrollViewer while scrolling. Done means the WebView2 instances remain within the ScrollViewer and do not cover the surrounding gray bars.