[LoadUIWeb] Content-Length errors in POST requests

OK I found out more about the problem but still no solution.



In the Text tab of the Request tab (see here) you can see/edit the body of your request. My request is of the multipart/form-data type.



It seems that LoadUIWeb prepends and appends the text '--t/form-data' to anything you enter in the text field.



However, the RESTwebsvc that handles my requests does not want this. It wants the raw stream of UTF bytes. Is there any way to have LoadUIWeb not add the --t/form-data string?