title: UpdateProgress Control Remains Visible on Safari and Chrome
body: <p>I am using the ASP.NET Ajax controls UpdatePanel and UpdateProgress. The idea of a the UpdateProgress control is to display a message while the page is performing a partial postback, then disappear when the postback completes. On Firefox and Internet Explorer, this happens correctly. However, on Safari and Chrome the UpdateProgress control remains visible after the postback completes. Is this a bug in the ASP.NET Ajax Framework, or is there another workaround?</p>