Hi, I'm a real newb to nginx. Is it possible to add support for the MS SSTP protocol when using nginx as a reverse proxy? Currently, if I try to do so, I get a 411 error from nginx when it processes the HTTP header.

192.168.0.17 - - [27/Sep/2012:05:42:01 -0400] "SSTP_DUPLEX_POST /sra_{BA195980-CD49-458b-9E23-C84EE0ADCD75}/ HTTP/1.1" 411 174 "-" "-"

The message spec is here:

http://msdn.microsoft.com/en-us/library/cc247364(v=prot.10).aspx

Any assistance would be welcomed - thx.