Since the WPF browser control has no suppress script error function and adding a windows form host is just overhead I found a solution in C# and posting the VB version here.
'Add this sub
add this to the Navigated event
'Add this sub
Public Sub HideScriptErrors(wb As WebBrowser, Hide As Boolean) Dim fiComWebBrowser As FieldInfo = GetType(WebBrowser).GetField("_axIWebBrowser2", BindingFlags.Instance Or BindingFlags.NonPublic) If fiComWebBrowser Is Nothing Then Return End If Dim objComWebBrowser As Object = fiComWebBrowser.GetValue(wb) If objComWebBrowser Is Nothing Then Return End If objComWebBrowser.[GetType]().InvokeMember("Silent", BindingFlags.SetProperty, Nothing, objComWebBrowser, New Object() {Hide}) End Sub
In WebBrowser1 (or whatever the name of your browser control is) add this to the Navigated event
HideScriptErrors(WebBrowser1, True)
It should look as such
Private Sub WebBrowser1_Navigated(sender As Object, e As System.Windows.Navigation.NavigationEventArgs) Handles WebBrowser1.Navigated HideScriptErrors(WebBrowser1, True) End Sub