Mean stack meteor setup

Hi Meteorists!
I’m faced with common problem with setup on mean stack google cloud VM, webserver is apache, proxyPass to meteor’s app localhost:3000, start page of meteor opening succesfully, but chrome console red write:
WebSocket connection to ‘ws://meteor.mysite/sockjs/537/kqxsnq73/websocket’ failed…: Error during WebSocket handshake: Unexpected response code: 400
whether for this reason simple:rest does not work?
but at this forum there are no clear way solutions, I suggest once concrete ways for solution this problem? right server’s setting for meteor?