Bad request [syntax|version|request type] messages

[ccurvey]

I'm using the software with my Django 1.8.7 server on linux, listening on port 443. I sometimes see error messages in the logs saying

"Bad request version , you're accessing the development server over HTTPS, but it only supports HTTP".

Any idea how this might be happening? The server is being launched from supervisord, and I'm also not quite sure why I'm seeing two processes (one is a child of the other), that are both "python manage.py runsslserver ...."