Assembly: PresentationFramework (in PresentationFramework.dll)
XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation
The WebBrowser instance is no longer valid.
A reference to the underlying native WebBrowser could not be retrieved.
Navigation from an application that is running in partial trust to a Uri that is not located at the site of origin.