Upgraded from 3.7 to 3.8 broke websockets! help!

Just tested 3.8.2. Still seeing the same issue.

I have a nginx reverse proxy. Was working on 3.7.3

[2017/04/21 15:08:58 PDT] [EROR] websocket connect err: websocket: origin not allowed
[2017/04/21 15:09:44 PDT] [EROR] /api/v3/users/websocket:connect code=500

My nginx config

upstream mattermost {
  server 127.0.0.1:8065;
}

proxy_cache_path /var/cache/nginx levels=1:2 keys_zone=mattermost_cache:10m max_size=3g inactive=120m use_temp_path=off;

server {
  listen *:80;
  server_name chat.mycomp.com;
  server_tokens off;
  return 301 https://chat.mycomp.com:443$request_uri;
  access_log  /var/log/gitlab/nginx/mattermost_access.log;
  error_log   /var/log/gitlab/nginx/mattermost_error.log;
}

server {
  listen *:443 ssl http2;
  server_name chat.mycomp.com;
  server_tokens off;     # don't show the version number, a security best practice
  client_max_body_size 250m;

  ssl on;
  ssl_certificate /etc/gitlab/ssl/mycomp-chained.crt;
  ssl_certificate_key /etc/gitlab/ssl/mycomp.key;
  ssl_session_timeout 5m;
  ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
  ssl_ciphers 'EECDH+AESGCM:EDH+AESGCM:AES256+EECDH:AES256+EDH';
  ssl_prefer_server_ciphers on;
  ssl_session_cache shared:SSL:10m;


  ## Real IP Module Config
  ## http://nginx.org/en/docs/http/ngx_http_realip_module.html

  access_log  /var/log/gitlab/nginx/mattermost_access.log;
  error_log   /var/log/gitlab/nginx/mattermost_error.log;

  location /api/v3/users/websocket {
 proxy_set_header Upgrade $http_upgrade;
       proxy_set_header Connection "upgrade";
       client_max_body_size 50M;
       proxy_set_header Host $http_host;
       proxy_set_header X-Real-IP $remote_addr;
       proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
       proxy_set_header X-Forwarded-Proto $scheme;
       proxy_set_header X-Frame-Options SAMEORIGIN;
       proxy_buffers 256 16k;
       proxy_buffer_size 16k;
       proxy_read_timeout 600s;
       proxy_pass http://mattermost;
   }

   location / {
       client_max_body_size 50M;
       proxy_set_header Connection "";
       proxy_set_header Host $http_host;
       proxy_set_header X-Real-IP $remote_addr;
       proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
       proxy_set_header X-Forwarded-Proto $scheme;
       proxy_set_header X-Frame-Options SAMEORIGIN;
       proxy_buffers 256 16k;
       proxy_buffer_size 16k;
       proxy_read_timeout 600s;
       proxy_cache mattermost_cache;
       proxy_cache_revalidate on;
       proxy_cache_min_uses 2;
       proxy_cache_use_stale timeout;
       proxy_cache_lock on;
       proxy_pass http://mattermost;
   }

}