Voir la source de N8N You have a connection issue or the server is down. ou problème docker et connection websocket avec PLESK

Il faut prendre en considération les connection websocket dans la config Apache : <syntaxhighlight lang="sh">
ProxyPreserveHost On
ProxyRequests Off

# Support WebSocket
RewriteEngine On
RewriteCond %{HTTP:Upgrade} =websocket [NC]
RewriteRule /(.*) ws://127.0.0.1:<port>/$1 [P,L]
RewriteCond %{HTTP:Upgrade} !=websocket [NC]
RewriteRule /(.*) http://127.0.0.1:<port>/$1 [P,L]

ProxyPass / http://127.0.0.1:<port>/
ProxyPassReverse / http://127.0.0.1:<port>/

# Headers pour WebSocket
RequestHeader set X-Forwarded-Proto "https"
RequestHeader set X-Forwarded-Port "443"
</syntaxhighlight>