In FileUpload.cs there is an unhandled exception that I am now seeing. BTW, I did not see this until I upgraded from IE7 to IE8.
In IE7 the problem would manifest by occasionally a file not being uploaded and the progress bar would not move.
I would just stop the upload and try again, but now it gives an exception when the server eventually responds with a "Not found" message code 4004
I tried catching it using this in the method; private void ReadCallback(IAsyncResult asynchronousResult):
response = (HttpWebResponse)webrequest.EndGetResponse(asynchronousResult);
catch (Exception ex) //also tried catch (WebException)
if (resizeStream != null)
Helper.dispMessage("Network error: " + ex.ToString());
but it doesn't catch it, and the debugger display the offending line.
BTW, I am using the PHP server side code.