vb.net如何删除此脚本标签？

Question

如何在vb.net中删除此脚本标签？

<script type="text/javascript" src="https://d2nasxlktxv6tm.cloudfront.net/webclient-next/manifest-5d1034b834d8851f0991.js"></script>

我已经尝试过使用此代码，但还是没有运气。

Private Sub Button4_Click(sender As Object, e As EventArgs) Handles Button4.Click
    If WebBrowser1.ReadyState = WebBrowserReadyState.Complete Then
        For Each ele As HtmlElement In WebBrowser1.Document.All
            If ele.OuterHtml.Contains("https://d2nasxlktxv6tm.cloudfront.net/webclient-next/manifest-5d1034b834d8851f0991.js") Then
                ele.OuterHtml = ""
            End If

        Next
    End If
End Sub