sl-jetson edc0d6a002 feat: auto-detect wss:// for rosbridge when page served over HTTPS (Issue #681)
- Default URL auto-selects wss://saul-t-mote.evthings.app/rosbridge when
  page is loaded via https://, falls back to ws://100.64.0.2:9090 for
  local/Tailscale access
- Clears hardcoded ws:// value from input; JS sets it from localStorage
  or the detected default on first load

Companion: nginx config on Orin adds /rosbridge WebSocket reverse proxy
  on port 8080  →  ws://127.0.0.1:9090

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-04-04 12:09:24 -04:00

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# saul-tee.conf — nginx site for saul-t-mote.evthings.app reverse proxy
#
# Replaces: python3 -m http.server 8080 --directory /home/seb
# Router (ASUS Merlin / OpenResty) terminates TLS on :443 and proxies to Orin:8080
#
# Deploy:
# sudo cp saul-tee.conf /etc/nginx/sites-available/saul-tee
# sudo ln -sf /etc/nginx/sites-available/saul-tee /etc/nginx/sites-enabled/saul-tee
# sudo systemctl reload nginx
#
# ROUTER REQUIREMENT for WSS to work:
# The ASUS Merlin router's nginx/OpenResty must proxy /rosbridge with
# WebSocket headers. Add to /jffs/configs/nginx.conf.add:
#
# map $http_upgrade $connection_upgrade {
# default upgrade;
# '' close;
# }
#
# And in the server block that proxies to 192.168.86.158:8080, add:
#
# location /rosbridge {
# proxy_pass http://192.168.86.158:8080/rosbridge;
# proxy_http_version 1.1;
# proxy_set_header Upgrade $http_upgrade;
# proxy_set_header Connection $connection_upgrade;
# proxy_read_timeout 86400;
# }
# Infer WebSocket upgrade from Connection header.
# Handles the case where an upstream proxy (e.g. ASUS Merlin OpenResty)
# passes Connection: upgrade but strips the Upgrade: websocket header.
map $http_connection $ws_upgrade {
"upgrade" "websocket";
default "";
}
server {
listen 8080 default_server;
listen [::]:8080 default_server;
root /home/seb;
index index.html;
server_name _;
# Static files — replaces python3 -m http.server 8080 --directory /home/seb
location / {
try_files $uri $uri/ =404;
autoindex on;
}
# rosbridge WebSocket reverse proxy
# wss://saul-t-mote.evthings.app/rosbridge --> ws://127.0.0.1:9090
location /rosbridge {
proxy_pass http://127.0.0.1:9090/;
proxy_http_version 1.1;
proxy_set_header Upgrade $ws_upgrade;
proxy_set_header Connection "upgrade";
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_read_timeout 86400;
proxy_send_timeout 86400;
}
}