Shanmin Cao

> Testing if socket is open in ws-incoming.js seems to solve the issue > > ``` > proxyReq.on('response', function (res) { > // if upgrade event isn't going to happen,...

It worked for me after i took `--ipv4` flag out of [install_script](https://github.com/Jigsaw-Code/outline-server/blob/master/src/server_manager/install_scripts/install_server.sh#L447 )

:+1: