In 5.1, we changed ConvertRequest to use Request.GetBufferedInputStream in lieu of Request.InputStream for reading the content. However the GetBuffer*InputStream methods only works correctly when the stream had not been previously read (for instance by the trace module). HttpRequest.ReadEntityBodyMode can be used to determine if the stream has been previously accessed.
Comments: Fixed in changeset 1440514db2fd47707fc293c50e5c68b3ac16ec69
Comments: Fixed in changeset 1440514db2fd47707fc293c50e5c68b3ac16ec69