Webview not Scrollable using Shell

I'm using Shell in Xamarin 4.1 for a New Project. And I tried everything but I can't make this WebView to be Scrollable.

<StackLayout>
                <ScrollView VerticalOptions="FillAndExpand">
                    <WebView Source="mysite" VerticalOptions="FillAndExpand" HorizontalOptions="FillAndExpand"/>
                </ScrollView>
</StackLayout>

Am I doing something wrong?