title: Can I make a WebRequest without setting ContentLength
body: <p>This is a goofy question but I'm testing a tool and need to create an unusual situation. I want to make a POST request that sends several megabytes of data to a web server but I don't want the Content-Length set. (It would be OK if it was set to 0 or -1.)</p>
  
  <p>HttpWebRequest automatically sets request.ContentLength to the length of the RequestStream buffer. Is there a way to prevent or circumvent this?</p>