Microsoft Edge Websocket per server limit

We have a certain web page that opens more than the limit of 6 web sockets per server.

On IE 11 and 10 we can set a registry key that removes this limitation:

https://msdn.microsoft.com/en-us/library/ee330736(v=vs.85).aspx#websocket_maxconn

I couldn't make it work for Edge.

Is there a way to remove this limitation for Edge?

Thanks