Comment 147 for bug 1409142

I think this might be mentioned in a comment of:

https://review.openstack.org/#/c/163034/3/nova/console/websocketproxy.py

".. the Origin header is set by browser and it is set to the location of the script that makes the request. It's a mandatory field for browser but not relevant for command line tools. More information here: https://tools.ietf.org/html/rfc6455#section-10.2"

How are you making the GET request?