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 3974b68329b7c5c007413bb4f03f44ecc2028bd5
Comments: Fixed in changeset 3974b68329b7c5c007413bb4f03f44ecc2028bd5